CN203218206U - Double-fuse mechanism - Google Patents
Double-fuse mechanism Download PDFInfo
- Publication number
- CN203218206U CN203218206U CN 201320189869 CN201320189869U CN203218206U CN 203218206 U CN203218206 U CN 203218206U CN 201320189869 CN201320189869 CN 201320189869 CN 201320189869 U CN201320189869 U CN 201320189869U CN 203218206 U CN203218206 U CN 203218206U
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- CN
- China
- Prior art keywords
- fuse
- double
- contactor
- iron core
- work
- 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 - Fee Related
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Abstract
The utility model relates to a double-fuse mechanism, particularly to a double-fuse mechanism especially for various home appliances. The double-fuse mechanism comprises a work fuse, a spare fuse and a contactor, wherein the spare fuse and the contactor are in parallel connection with the work fuse. The double-fuse mechanism has the following advantages: 1. the mechanism is low in cost; and 2. the time for using the fuse without replacement can be doubled, thereby bringing more convenience to users.
Description
Technical field
The present invention relates to a kind of double safety mechanism, relate in particular to the double safety mechanism that a kind of specialty is used for various household electrical appliance.
Background technology
Now domestic various household electrical appliance all can be used protective tube, employing all be the mechanism of simple insurance, that is to say only with a protective tube.Because a variety of causes, protective tube can be burnt out, and causes household electrical appliance normally to use.Need to change protective tube, but because the user does not nearly all have electrician's basis, the electrical equipment that has is changed protective tube certain difficulty (as reasons such as installation sites), seems inconvenient because the replacing of protective tube is made house calls service engineering teacher, and can produce certain expense.
Summary of the invention
At the weak point of above-mentioned technology, the invention provides a kind of simple method, increasing hardly under the condition of cost, make the time of replacing can prolong one times.
A kind of double safety mechanism comprises the work insurance pipe, and the standby protective tube, the contactor that are connected in parallel with the work insurance pipe.
Wherein, described contactor comprises static iron core, moving iron core, coil, spring.
Beneficial effect of the present invention is, at first, this mechanism cheap (cost is no more than 5 yuan), secondly, the time of changing fuse can prolong one times.Can make things convenient for the user widely.
Description of drawings
Fig. 1 is the double safety mechanism schematic diagram;
Front view when Fig. 2 cuts off the power supply for contactor;
Vertical view when Fig. 3 switches on for contactor.
The standby protective tube of 1-; 2-work insurance pipe; The 3-contactor; The 4-static iron core; The 5-coil; 6-moves iron core
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
A kind of double safety mechanism as shown in Figure 1, comprises work insurance pipe 2, in addition, also comprises the standby protective tube 1, the contactor 3 that are connected in parallel with work insurance pipe 2.
Wherein, described contactor 3 comprises static iron core 4, moving iron core 6, coil 5, spring.
Simply introduce the operation principle of contactor, electrical equipment energising under the normal condition, as shown in Figure 3, A coil, B coil electricity, static iron core 4 produces magnetic fields, the elastic force that moving iron core 6 overcomes spring down, contact C and D disconnect; When work insurance pipe 2 burns out, A coil, B coil no power, static iron core 4 does not produce magnetic field, and up, contact C and D connect moving iron core 6 under spring action, backup fuse work, household electrical appliance normally use, as shown in Figure 2.
The above only is preferred embodiment of the present invention, and is in order to limit the utility model, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a double safety mechanism comprises the work insurance pipe, it is characterized in that, also comprises the standby protective tube, the contactor that are connected in parallel with the work insurance pipe.
2. structure as claimed in claim 1 is characterized in that, described contactor comprises static iron core, moving iron core, coil, spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189869 CN203218206U (en) | 2013-04-12 | 2013-04-12 | Double-fuse mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189869 CN203218206U (en) | 2013-04-12 | 2013-04-12 | Double-fuse mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218206U true CN203218206U (en) | 2013-09-25 |
Family
ID=49207719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320189869 Expired - Fee Related CN203218206U (en) | 2013-04-12 | 2013-04-12 | Double-fuse mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103464A (en) * | 2013-04-12 | 2014-10-15 | 浙江海洋学院 | Double-fuse mechanism |
-
2013
- 2013-04-12 CN CN 201320189869 patent/CN203218206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103464A (en) * | 2013-04-12 | 2014-10-15 | 浙江海洋学院 | Double-fuse mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |