CN1556567A - Unirersal electric wall proof device of electric body building device controlled by single chip machine - Google Patents
Unirersal electric wall proof device of electric body building device controlled by single chip machine Download PDFInfo
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- CN1556567A CN1556567A CNA2003101239897A CN200310123989A CN1556567A CN 1556567 A CN1556567 A CN 1556567A CN A2003101239897 A CNA2003101239897 A CN A2003101239897A CN 200310123989 A CN200310123989 A CN 200310123989A CN 1556567 A CN1556567 A CN 1556567A
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- ground wire
- processing unit
- central processing
- electric
- electrodynamic type
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Abstract
The invention discloses a electricity preventing wall device applied to electric healthy apparatus controlled by microchip, which belongs to microchip technology application field, especially relates to an electricity preventing wall technology for secure the personal safety when the ground line and the base insulator of the electric healthy apparatus are failed at the same time. The main character lies in: a transformer or a resistance-capacitance step-down circuit is arranged between the ground line and the zero line, which is connected to the I/O input port of microchip through switch tubes. The microchip receives the voltage difference signal between zero and ground lines, it cuts off the ground line in real-time and the power. The invention applies to each kind of electric body of electric healthy apparatuses.
Description
Anti-electric wall technology when technical field the invention belongs to microchip technology field and is particularly related to power-using body ground wire and basic insulation and lost efficacy simultaneously.
Background technology is well-known, and it must be reliably that electrodynamic type health and fitness facilities product standard requires the ground connection in the user family, and the standard plug that the band ground wire also is housed in its product is for linking to each other good with assurance ground connection with ground wire in the socket.And in China, power utilization environment is poor, and the ground connection of many buildings is insecure, or even lack.In this case, qualified electrodynamic type health and fitness facilities can not guarantee user's safety.The anti-electric wall technology that the invention relates to is special in China's actual conditions, is intended to guarantee under unsafe power utilization environment user's safety.And before the invention applying date, the electrodynamic type health and fitness facilities does not have the personal safety protector that cut off ground wire and power-using body power supply when ground wire and basic insulation lost efficacy simultaneously in real time, brings potential safety hazard for the user who does not have good earth.
The purpose of summary of the invention the invention is exactly to overcome the shortcoming that the above-mentioned prior art of electrodynamic type health and fitness facilities exists, providing a kind of had when this power-using body ground wire and basic insulation lost efficacy simultaneously, can cut off the power supply of ground wire and power-using body in real time, even under dangerous power utilization environment, also can guarantee user's safety.The relay circuit of the invention guarantees that simultaneously the electrodynamic type health and fitness facilities recovers or do not influence normal use when ground wire is not charged.
The invention solves the technical scheme that its technical problem adopts: the invention is provided with cross-over connection in ground wire E
INAnd the potential difference detecting device between zero line N (1), this device provides ground wire normal or charged logical signal to central processing unit (2) I/O input port, and central processing unit (2) is by the break-make of I/O output port control relay executive circuit.Relay executive circuit (3) is by drive circuit Q
1, Q
2And relay J
1, J
2Form, be serially connected with ground wire E respectively at its normally-closed contact, normally opened contact
IN, E
OUTAnd power-using body power supply L
IN, L
OUTRelay executive circuit (3) is controlled by central processing unit (2), cuts off being serially connected in relay J when ground wire electrification
1, J
2Ground wire and electrical appliance power supply.Under normal circumstances, the relay normally-closed contact is guaranteed ground wire E
IN, E
OUTAnd electrical appliance power supply L
IN, L
OUTConnection.
The advantage of the invention is simple in structure, and highly versatile is suitable for all kinds of electrodynamic type health and fitness facilitieses and installs, and effect is obvious, does not influence the use under the ground wire normal condition, its central processing unit also can with electrodynamic type health and fitness facilities single chip machine controlling circuit shared resource.
Description of drawings Fig. 1 is the circuit structure block diagram of the invention.Wherein (1) is that zero grounding potential difference detector set (2) is central processing unit, and (3) carry out electrical equipment for relay.
Fig. 2 is the electrical schematic diagram of the invention.E among the figure
INBe ground wire end of incoming cables, E
OUTBe the ground wire leading-out terminal, promptly link to each other with the power-using body earth terminal; L
INBe live wire end of incoming cables, L
OUTBe the live wire leading-out terminal, promptly link to each other with power-using body live wire end; N is a zero line, and 12V is the 12V DC power supply.
Embodiment the invention embodiment central processing unit adopts PIC16C54 (PIC16C57) chip microprocessor able to programme, and as previously mentioned, this chip microprocessor can be shared with the single chip machine controlling circuit of electrodynamic type health and fitness facilities.Cross-over connection is in zero line N and ground wire E
INBetween potential difference detecting device by transformer T or resistance-capacitance circuit R
1C
1(among Fig. 2 shown in the dotted line) step-down, D
1～D
4Diode rectification, capacitor C
0, voltage-stabiliser tube the DW voltage stabilizing circuit and the switching tube Q that form
0Form switching tube Q
0Be connected in central processing unit I/O input port, I/O output port control relay executive circuit Q
1, Q
2, J
1, J
2The relay normally-closed contact connects ground wire E
INAnd E
OUT, normally opened contact connects power-using body L
INAnd L
OUT
Claims (4)
1, the general electricity-preventing wall device of a kind of monolithic processor controlled electrodynamic type health and fitness facilities, its principal character is the potential difference detecting device (1) that is provided with between cross-over connection ground wire E and zero line N, this device provides potential difference signal between ground wire and zero line to central processing unit (2) I/O input port, central processing unit (2) cuts off the ground wire E that is connected on the relay normally-closed contact in real time by the break-make of I/O output port control relay executive circuit (3) when ground wire electrification
OUTAnd the power supply L of power-using body
OUT
2, the general electricity-preventing wall device of monolithic processor controlled electrodynamic type health and fitness facilities according to claim 1 is characterized in that cross-over connection is in zero line N and ground wire E
INBetween potential difference detecting device (1) by transformer T or resistance-capacitance circuit R
1C
1Step-down, D
1～D
4Diode rectification, capacitor C
0, voltage-stabiliser tube the DW voltage stabilizing circuit and the switching tube Q that form
0Form switching tube Q when ground wire electrification
0Provide logical signal (present embodiment is a low level) to central processing unit (2) I/O input port.
3, the general electricity-preventing wall device of monolithic processor controlled electrodynamic type health and fitness facilities according to claim 1 is characterized in that (a) central processing unit (2) is a programmable microprocessor; (b) zero line N and ground wire E
INBetween potential difference detecting device (1) output signal connect the I/O input port of central processing unit (2); (c) switching tube Q in the relay executive circuit (3)
1, Q
2The I/O output port that is controlled by central processing unit (2), relay J
1, J
2Be controlled by switching tube Q
1, Q
2And control the break-make of ground wire and power-using body power supply respectively.
4, the general electricity-preventing wall device of monolithic processor controlled electrodynamic type health and fitness facilities according to claim 1, it is characterized in that described central processing unit (2) can be provided with separately also can with the central processing unit shared resource in the electrodynamic type health and fitness facilities control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101239897A CN1556567A (en) | 2003-12-30 | 2003-12-30 | Unirersal electric wall proof device of electric body building device controlled by single chip machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101239897A CN1556567A (en) | 2003-12-30 | 2003-12-30 | Unirersal electric wall proof device of electric body building device controlled by single chip machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1556567A true CN1556567A (en) | 2004-12-22 |
Family
ID=34338945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101239897A Pending CN1556567A (en) | 2003-12-30 | 2003-12-30 | Unirersal electric wall proof device of electric body building device controlled by single chip machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1556567A (en) |
-
2003
- 2003-12-30 CN CNA2003101239897A patent/CN1556567A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |