CN1031775A - The fuse unit of displaying circuit breaking automatically - Google Patents
The fuse unit of displaying circuit breaking automatically Download PDFInfo
- Publication number
- CN1031775A CN1031775A CN 87106095 CN87106095A CN1031775A CN 1031775 A CN1031775 A CN 1031775A CN 87106095 CN87106095 CN 87106095 CN 87106095 A CN87106095 A CN 87106095A CN 1031775 A CN1031775 A CN 1031775A
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- Prior art keywords
- fuse
- resistance
- circuit
- fuse unit
- series circuit
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Abstract
A kind of fuse unit of displaying circuit breaking automatically, it is characterized in that in device, having a series circuit of forming by current-limiting resistance and light-emitting component at least, the wherein end that this series circuit and fuse connect also connects a resistance at least, and this resistance other end and zero line link.
Description
The present invention relates to a kind of fuse unit, particularly relate to a kind of fuse unit of energy displaying circuit breaking automatically.
China's utility model patent bulletin 86207981 provides a kind of simple in structure, fuse unit that cost is extremely low, this device has solved size fusible circuit, breaker preferably and has shown problem, but this device is because an end and load link, so former thereby fuse opens circuit simultaneously when load cut-off or other, just is difficult to good display effect.
Task of the present invention provides a kind of load effect that is not subjected to, the fuse unit of energy displaying circuit breaking automatically.
Its solution is: inner by at least one series circuit of being made up of current-limiting resistance and light-emitting component at device, this series circuit is in parallel with the circuit that connects fuse, wherein end connecting with fuse also connects at least one resistance, and the other end and the zero line of this resistance link.Like this, this device itself has just formed a closed circuit.When connecting the circuit operate as normal of fuse, because the series circuit resistance that current-limiting resistance etc. are formed is greater than fuse resistance, so this series circuit does not almost have electric current to flow through, light-emitting component is starter not; And when the fuse open circuit, its resistance is greater than the series circuit of compositions such as current-limiting resistance, i.e. starter light-emitting component.
The further improvement of this device is:
1, for the device of being furnished with the zero line fuse, can increase a new series circuit of forming by current-limiting resistance and light-emitting component, this series circuit and aforesaid series circuit connect.
2, for the circuit fuse more than the two-phase, can be by the aforementioned structure parallel connection by adorning some series circuits of forming by current-limiting resistance and light-emitting component.
Below in conjunction with accompanying drawing this device is further described:
Accompanying drawing 1 is that this installs a kind of concrete structure longitudinal sectional view.
Accompanying drawing 2 is this device circuit schematic diagrams.
With reference to Fig. 1: base of this device (1) and shell (2) are made with insulating material; Have an end and power lead (3) to link in the device fuse (5) that the other end and load wire (4) link, between lead (3) and lead (4), also has the series circuit of forming by current-limiting resistance (6) and light-emitting component (7), this series circuit is in parallel with the circuit that connects fuse, at a wherein end that connects with fuse (5), connecting resistance (8), resistance (8) other end and zero line (9) link, and form a closed circuit; Light-emitting component (7) can be known neon tube, low-power bulb or other luminous tube; In order to form the good contact between each member, can load onto element jump ring (10) respectively; Is furnished with another fuse (11) on the zero line (9); Thereby increased a new series circuit of forming by current-limiting resistance (12) and light-emitting component (13), this series circuit links by resistance (8) with the series circuit of being made up of current-limiting resistance (6) and light-emitting component (7), has window (14) on the shell (2) in order to observe each fuse working condition.
Accompanying drawing 2: in parallel for the circuit fuse more than the two-phase by having adorned some series circuits of forming by current-limiting resistance and light-emitting component, in addition, also can add the display effect of buzzer (15) with stiffening device.
Claims (2)
1, a kind of fuse unit of displaying circuit breaking automatically, it is characterized in that in device, having a series circuit of forming by current-limiting resistance and light-emitting component at least, the wherein end that this series circuit and fuse connect also connects a resistance at least, and this resistance other end and zero line link.
2,, it is characterized in that also being parallel with in the device some series circuits of forming by current-limiting resistance and neon tube according to claim/described fuse unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106095 CN1031775A (en) | 1987-08-31 | 1987-08-31 | The fuse unit of displaying circuit breaking automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106095 CN1031775A (en) | 1987-08-31 | 1987-08-31 | The fuse unit of displaying circuit breaking automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1031775A true CN1031775A (en) | 1989-03-15 |
Family
ID=4815576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87106095 Pending CN1031775A (en) | 1987-08-31 | 1987-08-31 | The fuse unit of displaying circuit breaking automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077476A (en) * | 2020-01-02 | 2020-04-28 | 湖南金泰环保科技有限公司 | Method for detecting short circuit or electric leakage fault point of equipment |
-
1987
- 1987-08-31 CN CN 87106095 patent/CN1031775A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077476A (en) * | 2020-01-02 | 2020-04-28 | 湖南金泰环保科技有限公司 | Method for detecting short circuit or electric leakage fault point of equipment |
| CN111077476B (en) * | 2020-01-02 | 2022-03-08 | 湖南金泰环保科技有限公司 | Method for detecting short circuit or electric leakage fault point of equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |