CN2718872Y - Universal anti-electric wall device for one-chip processer controlled electric body-building apparatus - Google Patents
Universal anti-electric wall device for one-chip processer controlled electric body-building apparatus Download PDFInfo
- Publication number
- CN2718872Y CN2718872Y CN 200320132181 CN200320132181U CN2718872Y CN 2718872 Y CN2718872 Y CN 2718872Y CN 200320132181 CN200320132181 CN 200320132181 CN 200320132181 U CN200320132181 U CN 200320132181U CN 2718872 Y CN2718872 Y CN 2718872Y
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- CN
- China
- Prior art keywords
- electric
- ground wire
- processing unit
- central processing
- electrodynamic type
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- 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 discloses a universal anti-electric wall device for an electric body-building apparatus controlled by one-chip processors, belongs to the technology application field of one-chip processors, and particularly relates to anti-electric wall technology for securing personal safety when a ground line and a base insulator of an electric body of the electric body-building apparatus are failed simultaneously. The utility model is mainly characterized in that a potential transformer or a resistance-capacitance voltage reducing circuit is connected between the ground line and a zero line which is connected with an I/O input port of the one-chip processor by a switching tube. The one-chip processor is used for receiving electric potential difference signals between the ground line and the zero line and cutting off the power of the ground line and the electric body in real time when the ground line is charged. The utility model relates to the anti-electric wall technology, which aims to secure the personal safety when the grounding is unreliable or the ground line is failed. The utility model is suitable for various control modes of various electric body-building apparatuses and different electric bodies. The electric body of an embodiment especially refers to an alternative-current motor using commercial power or a rectified direct current electric motor.
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, it is characterized in that being provided with the potential difference detecting device (1) 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 electrodynamic type health and fitness facilities
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
0, form switching tube Q when ground wire electrification
0Provide logical signal 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 electrodynamic type health and fitness facilities 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 |
|---|---|---|---|
| CN 200320132181 CN2718872Y (en) | 2003-12-31 | 2003-12-31 | Universal anti-electric wall device for one-chip processer controlled electric body-building apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320132181 CN2718872Y (en) | 2003-12-31 | 2003-12-31 | Universal anti-electric wall device for one-chip processer controlled electric body-building apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718872Y true CN2718872Y (en) | 2005-08-17 |
Family
ID=34891962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320132181 Expired - Fee Related CN2718872Y (en) | 2003-12-31 | 2003-12-31 | Universal anti-electric wall device for one-chip processer controlled electric body-building apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718872Y (en) |
-
2003
- 2003-12-31 CN CN 200320132181 patent/CN2718872Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |