CN103178487A - Terminal of fuse - Google Patents
Terminal of fuse Download PDFInfo
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- CN103178487A CN103178487A CN2013100892061A CN201310089206A CN103178487A CN 103178487 A CN103178487 A CN 103178487A CN 2013100892061 A CN2013100892061 A CN 2013100892061A CN 201310089206 A CN201310089206 A CN 201310089206A CN 103178487 A CN103178487 A CN 103178487A
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- circuit module
- circuit
- fuse
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Abstract
The invention provides a terminal of a fuse. The terminal of the fuse comprises a fuse, a power supply input end and a power supply output end of a wiring terminal, a first contact end and a second contact end, and a circuit module, wherein the power supply input end and the power supply output end of the wiring terminal are respectively and electrically connected with the both ends of the fuse; the first contact end and the second contact end are used for providing alarming signals; the first contact end and the second contact end are electrically isolated from the power supply input end and the power supply output end of the wiring terminal; the circuit module comprises a power supply end of the circuit module, an output end of the circuit module, a rectifying circuit and an optical coupling element; the power supply end of the circuit module comprises a first power supply end and a second power supply end of the circuit module, which are respectively matched with the power supply input end and the power supply output end of the wiring terminal; the output end of the circuit module comprises a first output end and a second output end of the circuit module, which are respectively matched with the first contact end and the second contact end; and the rectifying circuit and the optical coupling element are sequentially connected between the power end and the output end of the circuit module in series. The terminal of the fuse provided by the invention can realize an alarming function under an alternating-current power source or a direct-current power source, and can be more widely applied.
Description
Technical field
The present invention relates to a kind of electric protective device, relate in particular to a kind of fuse terminal.
Background technology
Fuse terminal is a kind of element that is connected on circuit in order to protective circuit; Flow through when large when circuit powers on, make fuse produce high temperature fusing, cause circuit breaker and interruptive current, protective circuit avoids coming to harm.Along with the progress of technology, existing fuse terminal has the alarm signal output function mostly, but is all the DC power supply input, does not possess the AC power input function.
Summary of the invention
The purpose of this invention is to provide a kind of fuse terminal, to overcome deficiency of the prior art.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of fuse terminal comprises:
Fuse,
The binding post power input and the binding post power output end that are electrically connected to fuse two ends respectively,
Be used for passing on the first tip side and second tip side of alarm signal, and described the first tip side and the second tip side and binding post power input and the mutual electrical isolation of binding post power output end, and,
Circuit module comprises:
The circuit module power end comprises circuit module the first power end and the circuit module second source end that coordinate with described binding post power input and binding post power output end respectively,
The circuit module output comprises circuit module the first output and circuit module the second output that coordinate with described the first tip side and the second tip side respectively, and,
Be serially connected with successively rectification circuit and optic coupling element between described circuit module power end and circuit module output, wherein, optic coupling element is used for electrical isolation.
It is pointed out that aforementioned fuse should be understood to be in the device that can be fused under the function of current of set point.
As one of comparatively preferred embodiment, described circuit module also comprises:
Be serially connected with the current-limiting circuit between described circuit module power end and optic coupling element.
As a kind of better concrete application scheme, described current-limiting circuit can be serially connected with between described circuit module power end and rectification circuit and/or between described rectification circuit and circuit module output.
As the better concrete application scheme of another kind, described rectification circuit is integrated to be arranged among described current-limiting circuit.
As one of comparatively preferred embodiment, described circuit module also can comprise: be serially connected with the protection component between described circuit module output and optic coupling element.
Described protection component can comprise overflow protecting element and/or over-voltage protection element.
Further, described protection component can comprise resettable fuse and/or piezo-resistance etc., but is not limited to this.
Described rectification circuit can comprise rectifier bridge, bridge rectifier or half-wave rectifying circuit, but is not limited to this.
As one of comparatively preferred embodiment, the output of described rectification circuit also can be connected to filter element.
Described current-limiting circuit can comprise bleeder circuit and/or capacitance-resistance voltage reduction circuit, but is not limited to this.
As one of better concrete application scheme, described the first tip side and the second tip side can be selected passive switch, but are not limited to this.
Compared with prior art, the present invention has following advantage at least:
1, tip side is passive switch, has the two states of closed and disconnected, there is no polarity between two contacts, can exchange;
But 2, binding post power end input AC/direct current, the accessible ac/dc electricity of tip side.
In general, the present invention all can realize warning function under AC power or DC power supply driving, can be used more widely.
Description of drawings
Fig. 1 is the circuit block diagram of a kind of fuse terminal in the comparatively preferred embodiment of the present invention one;
Fig. 2 is the circuit diagram of a preferred embodiment of the present invention;
Fig. 3 is the circuit diagram of another preferred embodiment of the present invention;
Fig. 4 is the circuit diagram of the another preferred embodiment of the present invention;
Fig. 5 is the present invention's circuit diagram of a preferred embodiment again.
Embodiment
As previously mentioned, in view of the deficiencies in the prior art, this case inventor provides a kind of fuse terminal, comprising:
Fuse,
The binding post power input and the binding post power output end that are electrically connected to fuse two ends respectively,
Be used for passing on the first tip side and second tip side of alarm signal, and described the first tip side and the second tip side and binding post power input and the mutual electrical isolation of binding post power output end, and
Circuit module comprises:
The circuit module power end comprises circuit module the first power end and the circuit module second source end that coordinate with described binding post power input and binding post power output end respectively,
The circuit module output comprises circuit module the first output and circuit module the second output that coordinate with described the first tip side and the second tip side respectively, and,
Be serially connected with successively rectification circuit and optic coupling element between described circuit module power end and circuit module output.
It is pointed out that aforementioned fuse should be understood to be in the device that can be fused under the function of current of set point.
Aforementioned the first tip side and the second tip side are passive contact,, have the two states of closed and disconnected that is, and there is no polarity between two tip sides, can exchange, accessible ac/dc electricity.
The aforementioned circuit module can integratedly be arranged on a circuit board.
As one of better concrete application scheme, aforementioned the first tip side and the second tip side can all adopt passive switch.
As a kind of comparatively preferred embodiment; also can in described circuit module, current-limiting circuit be set; use the circuit before the optocoupler input is protected, described current-limiting circuit can be serially connected with between described circuit module power end and rectification circuit and/or between described rectification circuit and circuit module output.
As the comparatively preferred embodiment of another kind, described rectification circuit also can integratedly be arranged among described current-limiting circuit.
As another comparatively preferred embodiment, also protection component can be set in circuit module, it can be serially connected with between described circuit module output and optic coupling element, uses the circuit of optocoupler output is protected.Described protection component can comprise overflow protecting element and/or over-voltage protection element.
Described overflow protecting element and/or over-voltage protection element can be independent component or integrated component, and it can select resettable fuse, piezo-resistance etc., but is not limited to this.
Aforementioned fuse terminal can adopt KDKS 1/35DB fuse terminal or the similar terminal that Wei, Weidmulie was produced, and wherein can carry a fuse holder, in order to change fuse.
Consulting shown in Figure 1 is a preferred application scheme of the present invention, and it comprises:
Fuse,
The binding post power input and the binding post power output end that are electrically connected to fuse two ends respectively,
Be used for passing on the first tip side and second tip side of alarm signal, and described the first tip side and the second tip side and binding post power input and the mutual electrical isolation of binding post power output end, and,
Circuit module comprises:
The circuit module power end comprises circuit module the first power end and the circuit module second source end that coordinate with described binding post power input and binding post power output end respectively,
The circuit module output comprises circuit module the first output and circuit module the second output that coordinate with described the first tip side and the second tip side respectively, and,
Be serially connected with successively rectification circuit, current-limiting circuit, optic coupling element and protection component between described circuit module power end and circuit module output.
In this fuse terminal, after ac/dc electric current process rectification circuit and current-limiting circuit, send into the input of optic coupling element, when fuse worked, the optocoupler output was in off-state, during blown fuse, the optocoupler output is in conducting state, at this moment, the first tip side and the second tip side produce alarm signal, and can be connected with the warning device of outside the warning reminding function is provided.
The various forms that aforementioned rectification circuit can adopt those skilled in the art to know, for example, rectifier bridge, the bridge rectifier that is formed by some diodes, the bridge rectifier that is formed by some controllable silicons, and halfwave rectifier etc., but be not limited to this.
Postscript, preferred, also can filter element be set at aforementioned rectification circuit output end, for example, electric capacity etc. or have the circuit etc. of filter function;
The various forms that aforementioned current-limiting circuit also can adopt those skilled in the art to know, for example, the bleeder circuit that is formed by some resistance, the capacitance-resistance voltage reduction circuit that is formed by some resistance and electric capacity, etc.
further, consult Fig. 2, in one embodiment of this invention, this fuse terminal comprises binding post and circuit module, binding post comprises fuse F, two binding post power ends and two tip sides, and fuse F two ends are connected with two binding post power ends, circuit module comprises two circuit module power ends, two circuit module outputs, rectifier bridge D, the first capacitor C 1, by the current-limiting circuit that the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 consist of, optic coupling element U and protection component, piezo-resistance RV resettable fuse P, two circuit module power ends are connected (being that fuse F is connected with the circuit module power end) with two binding post power ends, two circuit module outputs are connected with two tip sides, the first resistance R 1 one ends are connected with a circuit module power end, first resistance R 1 other end is connected with rectifier bridge D one input, the second resistance R 2 one ends are connected with another circuit module power end, second resistance R 2 other ends are connected with another input of rectifier bridge D, rectifier bridge D negative pole is connected with the 4th resistance R 4 one ends with the first capacitor C 1 negative pole respectively, rectifier bridge D positive pole is connected with the 3rd resistance R 3 one ends with the first capacitor C 1 positive pole respectively, the 3rd resistance R 3 other ends are connected with optic coupling element U positive input terminal, the 4th resistance R 4 other ends are connected with optic coupling element U negative input end, optic coupling element U positive output end is connected respectively end and is connected with resettable fuse P with piezo-resistance RV one end, the resettable fuse P other end is connected with a circuit module output, optic coupling element U negative output terminal respectively with the piezo-resistance RV other end be connected the circuit module output and be connected.
The present embodiment rectifier bridge is arranged among bleeder circuit, and the electric current after 1 pair of rectification of capacitor C carries out filtering.
When fuse F worked, circuit module was not worked; When fuse F fusing, circuit module enters operating state, and the circuit module output starts warning device to the tip side output current.
Consulting shown in Figure 3 is another embodiment of the present invention again, the overall architecture of this fuse terminal is similar to aforementioned first embodiment, but its rectification circuit is to adopt rectifier bridge, before described rectifier bridge is arranged on bleeder circuit, after namely the first resistance R 1 ' and the second resistance R 2 ' are arranged on rectifier bridge D and filter capacitor C1.Its operation principle and aforementioned first embodiment are basic identical.
consulting shown in Figure 3 is another embodiment of the present invention again, the overall architecture of this fuse terminal is also close with aforementioned first embodiment, difference is: it adopts the capacitance-resistance voltage reduction circuit that mainly is comprised of the second capacitor C 2 and the 5th resistance R 5, the bridge rectifier that is mainly formed by the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, and comprise the 5th voltage stabilizing didoe D5 and the 3rd capacitor C 3, one circuit module power end is connected with the 5th resistance R 5 one ends with the second capacitor C 2 one ends, second capacitor C 2 other ends and the 5th resistance R 5 other ends connect into node, this node is connected with the 3rd diode D3 negative pole with the first diode D1 is anodal, another circuit module power end is connected with the 4th diode D4 negative pole with the second diode D2 is anodal, the first diode D1 negative pole, the second diode D2 negative pole, the 5th voltage stabilizing didoe negative pole, the 3rd capacitor C 3 positive poles are connected with optic coupling element U positive input terminal, the 3rd diode D3 is anodal, the 4th diode D4 is anodal, the 5th voltage stabilizing didoe D5 is anodal, the 3rd capacitor C 3 negative poles are connected with optic coupling element U negative input end.Wherein, protective circuit when the 5th voltage stabilizing didoe D5 is used for electrostatic breakdown, the 3rd capacitor C 3 plays filter action.Its operation principle and first embodiment are basic identical.
consulting shown in Figure 5 is an embodiment more of the present invention again, the overall architecture of this fuse terminal is also close with aforementioned the 3rd embodiment, difference is: the present embodiment adopts the half-wave rectifying circuit that is comprised of the first controllable silicon S1 and the second controllable silicon S2, the 5th resistance R 5 one ends and the second capacitor C 2 one ends with is connected the circuit module power end and is connected, the 5th resistance R 5 other ends are connected with the second controllable silicon S2 negative pole, second capacitor C 2 other ends are connected with the first controllable silicon S1 is anodal, the first controllable silicon S1 negative pole, the 5th voltage stabilizing didoe negative pole, the 3rd capacitor C 3 positive poles are connected with optic coupling element U positive input terminal, the second controllable silicon S2 just, the utmost point the 5th voltage stabilizing didoe D5 is anodal, the 3rd capacitor C 3 negative poles are connected with optic coupling element U negative input end.Its operation principle is identical with embodiment one.
Be only below concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on rights protection scope of the present invention.
Claims (11)
1. a fuse terminal, is characterized in that, comprising:
Fuse,
The binding post power input and the binding post power output end that are electrically connected to fuse two ends respectively,
Be used for passing on the first tip side and second tip side of alarm signal, and, described the first tip side and the second tip side and binding post power input and the mutual electrical isolation of binding post power output end, and,
Circuit module comprises:
The circuit module power end comprises circuit module the first power end and the circuit module second source end that coordinate with described binding post power input and binding post power output end respectively,
The circuit module output comprises circuit module the first output and circuit module the second output that coordinate with described the first tip side and the second tip side respectively, and,
Be serially connected with successively rectification circuit and optic coupling element between described circuit module power end and circuit module output.
2. fuse terminal according to claim 1, is characterized in that, described circuit module also comprises:
Be serially connected with the current-limiting circuit between described circuit module power end and optic coupling element.
3. fuse terminal according to claim 2, is characterized in that, described current-limiting circuit is serially connected with between described circuit module power end and rectification circuit and/or between described rectification circuit and circuit module output.
4. fuse terminal according to claim 2, is characterized in that, described rectification circuit is integrated to be arranged among described current-limiting circuit.
5. the described fuse terminal of any one according to claim 1-4, is characterized in that, described circuit module also comprises: be serially connected with the protection component between described circuit module output and optic coupling element.
6. fuse terminal according to claim 5, is characterized in that, described protection component comprises overflow protecting element and/or over-voltage protection element.
7. fuse terminal according to claim 6, is characterized in that, described protection component comprises resettable fuse and/or piezo-resistance.
8. the described fuse terminal of any one according to claim 1-4, is characterized in that, described rectification circuit comprises rectifier bridge, bridge rectifier or half-wave rectifying circuit.
9. the described fuse terminal of any one according to claim 1-4, is characterized in that, the output of described rectification circuit also is connected to filter element.
10. the described fuse terminal of any one according to claim 2-4, is characterized in that, described current-limiting circuit comprises bleeder circuit and/or capacitance-resistance voltage reduction circuit.
11. according to claim 1-4, the described fuse terminal of any one, is characterized in that, described the first tip side and the second tip side all adopt passive switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100892061A CN103178487A (en) | 2013-03-19 | 2013-03-19 | Terminal of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100892061A CN103178487A (en) | 2013-03-19 | 2013-03-19 | Terminal of fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103178487A true CN103178487A (en) | 2013-06-26 |
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ID=48638175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100892061A Pending CN103178487A (en) | 2013-03-19 | 2013-03-19 | Terminal of fuse |
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| CN (1) | CN103178487A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206560U (en) * | 1986-12-12 | 1987-10-03 | 中国科学院上海冶金研究所 | Multifunctional automatic protective device for household electric appliances |
| CN2045156U (en) * | 1988-09-07 | 1989-09-27 | 尹海栋 | Multifunctional protective device for household electric consumer |
| JP2004104914A (en) * | 2002-09-10 | 2004-04-02 | Matsushita Electric Ind Co Ltd | Power supply protection circuit |
| CN1738124A (en) * | 2004-08-18 | 2006-02-22 | 华为技术有限公司 | Alarm circuit |
| CN203086103U (en) * | 2013-03-19 | 2013-07-24 | 魏德米勒电联接（上海）有限公司 | Fuse terminal |
-
2013
- 2013-03-19 CN CN2013100892061A patent/CN103178487A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206560U (en) * | 1986-12-12 | 1987-10-03 | 中国科学院上海冶金研究所 | Multifunctional automatic protective device for household electric appliances |
| CN2045156U (en) * | 1988-09-07 | 1989-09-27 | 尹海栋 | Multifunctional protective device for household electric consumer |
| JP2004104914A (en) * | 2002-09-10 | 2004-04-02 | Matsushita Electric Ind Co Ltd | Power supply protection circuit |
| CN1738124A (en) * | 2004-08-18 | 2006-02-22 | 华为技术有限公司 | Alarm circuit |
| CN203086103U (en) * | 2013-03-19 | 2013-07-24 | 魏德米勒电联接（上海）有限公司 | Fuse terminal |
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Application publication date: 20130626 |