CN2922113Y - Fuse-type isolating switch with indicating device - Google Patents
Fuse-type isolating switch with indicating device Download PDFInfo
- Publication number
- CN2922113Y CN2922113Y CN 200620044159 CN200620044159U CN2922113Y CN 2922113 Y CN2922113 Y CN 2922113Y CN 200620044159 CN200620044159 CN 200620044159 CN 200620044159 U CN200620044159 U CN 200620044159U CN 2922113 Y CN2922113 Y CN 2922113Y
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- CN
- China
- Prior art keywords
- fuse
- link
- indicating device
- disconnecting switch
- branch road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a fuse-type isolating switch with indicating device, which comprises a fuse-carrier driven by a hand handle and a fuse, wherein, the fuse is fixedly arranged at the bottom of the fuse-carrier through a connection part at the both ends, the utility model is characterized in that an indicating branch is arranged as well, which comprises LEDs interconnected in series and a resistor, the two ends of the indicating branch are respectively and electrically connected with a connection part at the both ends of the fuse in which a parallel connection branch with the fuse is structured. In general condition, when isolating switch is on, LED is not to radiating light due to the shunting effect of the fuse; when the fuse is melted to be broken, current can only takes use of a LED and resistor, LED light can warn user about the broken fuse for replacement and repairing.
Description
Technical field
The utility model relates to a kind of low-voltage variation electrical equipment, relates in particular to a kind of fuse disconnecting switch.
Background technology
Fuse has century-old history as the application of protection component in electric field.Wherein, good reliability with cut-off characteristic and be doomed fuse and become " the protection bodyguard of disaster ".In application, break down though fuse can not prevent an equipment, yet it can stop the generation of bigger further loss effectively by the fusing of self fuse-link, as the bursting of boilers that fire or transformer fault caused etc.
Fuse-link has been installed in isolating switch at present, has been formed fuse disconnecting switch, it not only has buffer action, also has the fusing effect.Yet after fuse-link fuses in fuse disconnecting switch, the fusing indication of domestic many fuse-links itself is difficult to observe outside fuse disconnecting switch, and have only the middle in addition fuse-link of indicating of state could find the fusing of fuse-link effectively, so whether not all fuse-link can both well point out user's fuse-link to fuse.
Summary of the invention
The utility model provides a kind of fuse disconnecting switch with indicating device for solving the problems of the technologies described above, make no matter which kind of fuse-link can both remind the user that fuse-link fuses apace, thereby strengthened the scope of application of fuse-link in this fuse disconnecting switch greatly with.
The utility model is to address the above problem the technical scheme that adopts to provide a kind of fuse disconnecting switch with indicating device, comprise the fusing carrier and the fuse-link that drive by handle, described fuse-link is fixed in the fusing carrier bottom by the connecting portion at two ends, it is characterized in that, also comprise an indication branch road, described indication branch road comprises the light-emitting diode and the resistance of mutual series connection, indication branch road two ends are electrically connected with the connecting portion at described fuse-link two ends respectively, form the branch road in parallel with fuse-link.
Described fuse disconnecting switch with indicating device also comprises two clamps, and described two clamps are fixed on described fusing carrier bottom, and the connecting portion at described fuse-link two ends is fixed on respectively on the corresponding clamp, and is electrically connected with corresponding clamp.
Described fuse disconnecting switch with indicating device, wherein, described indication branch road two ends respectively by with being connected of described clamp, be parallel to the fuse-link two ends.
Described fuse disconnecting switch with indicating device also comprises two spring leafs, and described two spring leafs are fixed on described fusing carrier bottom, and the connecting portion at described fuse-link two ends is fixed on respectively on the corresponding spring sheet, and is electrically connected with corresponding spring leaf.
Described fuse disconnecting switch with indicating device, wherein, described indication branch road two ends respectively by with being connected of described spring leaf, be parallel to the fuse-link two ends.
Described fuse disconnecting switch with indicating device also comprises a transparency cover, is located at described fusing carrier front, and described light-emitting diode is installed in the transparency cover.
Operation principle of the present utility model is: under normal circumstances, when isolating switch closed, electric current was through fuse-link, light-emitting diode and resistance, because the shunting action of fuse-link, light-emitting diode does not work.When fuse-link fused, electric current can only be by light-emitting diode and resistance, and light-emitting diode is bright, and the indication fuse-link fuses.
The advantage that the utility model is compared existing fuse disconnecting switch be can use domestic do not have in the middle of the fuse-link of indication, remind the user that fuse-link fuses by light-emitting diode, make things convenient for the user to change and overhaul.
Description of drawings
Fig. 1 is the three-dimensional exploded view that the utlity model has an embodiment of fuse disconnecting switch of indicating device;
Fig. 2 is the indication branch road structural representation that the utlity model has an embodiment of fuse disconnecting switch of indicating device;
Fig. 3 is the fusing carrier structure schematic diagram that the utlity model has an embodiment of fuse disconnecting switch of indicating device;
Fig. 4 is the fusing carrier schematic cross-section that the utlity model has an embodiment of fuse disconnecting switch of indicating device;
Fig. 5 is the fusing carrier structure schematic diagram that the utlity model has another embodiment of fuse disconnecting switch of indicating device.
Embodiment
Fig. 1 illustrates the three-dimensional exploded view of an embodiment of fuse disconnecting switch who the utlity model has indicating device.See also Fig. 1, this is the fuse disconnecting switch of three-phase coordinated type, it comprise pedestal 100, two side plates 101, the three pairs of sockets 102, with every pair of fuse-link 103, fusing carrier 104 and handle 105 that socket is corresponding.Wherein three pairs of sockets 102 are located on the pedestal, respectively three phases in the corresponding three-phase circuit.Each socket 102 is provided with a fuse-link 103, makes the socket conducting.Fuse-link 103 two ends have two connecting portion 103a, 103b, are used for fixing in fusing carrier 104 bottoms.Fusing carrier 104 is general names of the fixing parts of fuse-link 103, and in one embodiment, fusing carrier 104 can be a miniature lever that is driven by handle 105, and in another embodiment, fusing carrier 104 can be a cover.By the lifting of handle 105 drive fusing carriers 104, can make fuse-link 103 conductings or disconnect socket 102.
The characteristics that the utlity model has the fuse disconnecting switch of indicating device are: the indication branch road 106 in parallel at fuse-link 103 two ends.Please shown in Figure 2 in conjunction with consulting, Fig. 2 is the indication branch road structural representation that the utlity model has an embodiment of fuse disconnecting switch of indicating device.Indication branch road 106 comprises a light-emitting diode 106a and a resistance 106b, and light-emitting diode 106a has two terminals, a terminals series resistance 106b wherein, and external insulated conductor 106c of two terminals and 106d form indication branch road 106.Indication branch road 106 two ends are connected with two connecting portion 103a, the 103b at fuse-link 103 two ends, the branch road that formation and fuse-link 103 are in parallel.Like this, under normal circumstances, when isolating switch closed, electric current was through fuse-link 103, light-emitting diode 106a and resistance 106b, because the shunting action of fuse-link 103, light-emitting diode does not work.When fuse-link 103 fusing, electric current can only pass through light-emitting diode 106a and resistance 106b, and light-emitting diode is bright, and indication fuse-link 103 has fused.
Below for the installation of some examples explanation indication branch roads 106 be connected, but these examples are not as restriction of the present utility model, can make various modifications and replacement according to these examples.
Fig. 3 is the fusing carrier structure schematic diagram that the utlity model has an embodiment of fuse disconnecting switch of indicating device; Fig. 4 is the fusing carrier schematic cross-section that the utlity model has an embodiment of fuse disconnecting switch of indicating device.See also Fig. 3, shown in Figure 4, be provided with two spring leaf 107a, 107b in fusing carrier 104 bottom fuse-links 103 installation sites, two connecting portion 103a, 103b of fuse-link 103 are fixed on fusing carrier 104 bottoms by two spring leafs, and are electrically connected between connecting portion and the spring leaf.And the light-emitting diode 106a of indication branch road 106 is installed in the front of fusing carrier 104, draw two terminals from light-emitting diode 106a bottom, one end welds with an insulated conductor 106c and a spring leaf 107a, the other end is connected with resistance 106b, again with insulated conductor 106d and another spring leaf 107b welding.Like this, indication branch road 106 just is connected in parallel on fuse-link 103 two ends.
The spring leaf fixed structure generally is used for the little fuse disconnecting switch of current specification.
In addition, be provided with a transparency cover 108 in the front of fusing carrier 104, make things convenient for the user to observe the state of fuse-link 103, light-emitting diode 106a just installs in the transparency cover 108.
See also Fig. 5, Fig. 5 is the fusing carrier structure schematic diagram that the utlity model has another embodiment of fuse disconnecting switch of indicating device.In the present embodiment, be provided with two clamp 109a, 109b in fusing carrier 104 bottom fuse-links 103 installation sites, two connecting portion 103a, 103b of fuse-link 103 are fixed on fusing carrier 104 bottoms by two clamps, and are electrically connected between connecting portion and the clamp.And the light-emitting diode 106a of indication branch road 106 is installed in the front of fusing carrier 104, draw two terminals from light-emitting diode 106a bottom, one end is connected with a clamp 109a with insulated conductor 106c, and the other end is connected with resistance 106b, is connected with another clamp 109b with insulated conductor 106d again.Like this, indication branch road 106 just is connected in parallel on fuse-link 103 two ends.
The clamp fixed structure generally is used for the fuse disconnecting switch of big (thereby volume is bigger) of current specification, adopts the clamp structure, can save the welding step of part lead.
Equally, in the present embodiment, the front of fusing carrier 104 also is provided with a transparency cover (figure does not show), makes things convenient for the user to observe the state of fuse-link 103, and light-emitting diode 106a just installs in the transparency cover.
Though embodiment of the present utility model illustrates the three-phase coordinated type isolating switch with indicating device, but scope of the present utility model is not limited thereto, and should comprise the fuse disconnecting switch that all adopt indicating device, three-phase partition type isolating switch etc. for example, above embodiment explanation is only for illustrating.
Claims (6)
1. the fuse disconnecting switch that has indicating device, comprise the fusing carrier and the fuse-link that drive by handle, described fuse-link is fixed in the fusing carrier bottom by the connecting portion at two ends, it is characterized in that, also comprise an indication branch road, described indication branch road comprises the light-emitting diode and the resistance of mutual series connection, and indication branch road two ends are electrically connected with the connecting portion at described fuse-link two ends respectively, form the branch road in parallel with fuse-link.
2. the fuse disconnecting switch with indicating device as claimed in claim 1, it is characterized in that, also comprise two clamps, described two clamps are fixed on described fusing carrier bottom, the connecting portion at described fuse-link two ends is fixed on respectively on the corresponding clamp, and is electrically connected with corresponding clamp.
3. the fuse disconnecting switch with indicating device as claimed in claim 2 is characterized in that, described indication branch road two ends respectively by with being connected of described clamp, be parallel to the fuse-link two ends.
4. the fuse disconnecting switch with indicating device as claimed in claim 1, it is characterized in that, also comprise two spring leafs, described two spring leafs are fixed on described fusing carrier bottom, the connecting portion at described fuse-link two ends is fixed on respectively on the corresponding spring sheet, and is electrically connected with corresponding spring leaf.
5. the fuse disconnecting switch with indicating device as claimed in claim 4 is characterized in that, described indication branch road two ends respectively by with being connected of described spring leaf, be parallel to the fuse-link two ends.
6. the fuse disconnecting switch with indicating device as claimed in claim 1 is characterized in that, also comprises transparency cover, is located at described fusing carrier front, and described light-emitting diode is installed in the transparency cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044159 CN2922113Y (en) | 2006-07-24 | 2006-07-24 | Fuse-type isolating switch with indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044159 CN2922113Y (en) | 2006-07-24 | 2006-07-24 | Fuse-type isolating switch with indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2922113Y true CN2922113Y (en) | 2007-07-11 |
Family
ID=38254586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044159 Expired - Lifetime CN2922113Y (en) | 2006-07-24 | 2006-07-24 | Fuse-type isolating switch with indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2922113Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270544A (en) * | 2010-06-01 | 2011-12-07 | 上海电器陶瓷厂有限公司 | Combined fuse-type isolating switch |
| CN110208584A (en) * | 2019-07-10 | 2019-09-06 | 天津电力机车有限公司 | A kind of locomotive high-voltage voltage transformer fuse assembly of high stability |
-
2006
- 2006-07-24 CN CN 200620044159 patent/CN2922113Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270544A (en) * | 2010-06-01 | 2011-12-07 | 上海电器陶瓷厂有限公司 | Combined fuse-type isolating switch |
| CN102270544B (en) * | 2010-06-01 | 2013-09-11 | 上海电器陶瓷厂有限公司 | Combined fuse-type isolating switch |
| CN110208584A (en) * | 2019-07-10 | 2019-09-06 | 天津电力机车有限公司 | A kind of locomotive high-voltage voltage transformer fuse assembly of high stability |
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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 |
Granted publication date: 20070711 |
|
| EXPY | Termination of patent right or utility model |