CN1464610A - Overcurrent protecting device of potential therapeutic equipment - Google Patents
Overcurrent protecting device of potential therapeutic equipment Download PDFInfo
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- CN1464610A CN1464610A CN 02120559 CN02120559A CN1464610A CN 1464610 A CN1464610 A CN 1464610A CN 02120559 CN02120559 CN 02120559 CN 02120559 A CN02120559 A CN 02120559A CN 1464610 A CN1464610 A CN 1464610A
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- output
- potential therapeutic
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- output voltage
- high pressure
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- Electrotherapy Devices (AREA)
Abstract
The invention relates to an overcurrent protecting equipment for therapeutic potentiometer. The equipment uses the detecting unit arranged at the high voltage generating region to detect the output current of the high voltage generating region, if the detected value exceed the maximum permissible value, the predetermined treatment will be actuated, i.e. to lower the output voltage, and when the detected value of the reduced output current is lower than the permissible value, the output voltage will be resumed to the previous value before the reduction. The invention can sustain the convenience of the therapeutic potentiometer but prevent the patient from electric shock.
Description
Technical field
The present invention relates to that a kind of high potential with thousands of volts puts on insulated human body and the overcurrent protective device for the treatment of the electric potential therapeutic apparatus of this human body.
Background technology
Extend on the electric potential therapeutic apparatus and be provided with a removable electrical piece, and apply thousands of voltaisms and be pressed on this electrical piece.By the curer is that insulating trip is laid in ground, and places dielectric chair thereon, pad insulating film is sitting on this chair below, to receive treatment.Lay insulation cushion again underfoot, and be embedded overcoat, to seek insulation at the electric wire that connects body and electrical piece.And the secondary coil in the high pressure generating unit that produces output voltage is provided with the protective resistor of big resistance, and makes output current become zero as much as possible.Yet, if above-mentioned insulation is incomplete, therefore output current rising and cause the danger of electric shock etc.
Known overcurrent protective device is the safety device that is used to prevent the excessive rising of output current like this, and has set up output current detection circuit in the high pressure generating unit, if this detected value surpasses maximum permissible value, then carries out the processing that stops voltage output.Yet the known overcurrent protective device of this kind is as long as output current, stops voltage output just over maximum permissible value; so if continued treatment not; then check state of insulation, if will proceed then need restart to export high pressure, thereby it is poor to be considered to its convenience.
Purpose of the present invention provides a kind of and does not lower the convenience of electric potential therapeutic apparatus and guarantee by the overcurrent protective device of a kind of electric potential therapeutic apparatus of curer's safety for head it off.
Order of the present invention has and can realize by following measure:
A kind of overcurrent protective device of electric potential therapeutic apparatus detects the output current of high pressure generating unit by the checkout gear that is attached to the high pressure generating unit, and if this detected value surpasses maximum permissible value, then implements set processing; It is characterized in that: if the detected value of above-mentioned output current surpasses maximum permissible value, then implement the processing that reduces output voltage, and the detected value of the output current after reduction becomes replys feasible value when following, carries out making output voltage return back to the processing that reduces preceding value.
The invention has the advantages that: according to the overcurrent protective device of electric potential therapeutic apparatus of the present invention, if worsened by curer's state of insulation, and output current increases, and output voltage is fallen.Owing to the proportional output current that reduces with it, thus can avoid having been treated the anxiety of electric shock, and can guarantee fail safe.Again because more originally set point is low, and continue voltage output, so TD not.And if improved by curer's state of insulation, then output voltage returns back to original value, thus unnecessary miscellaneous operation, and can improve the convenience of this kind electric potential therapeutic apparatus.
Description of drawings
Fig. 1 is the block diagram that shows embodiments of the invention.
Fig. 2 is the part circuit diagram of Fig. 1.
Fig. 3 is the flow chart of circuit overcurrent protection
Concrete execution mode
The present invention also will be described in further detail embodiment in conjunction with the accompanying drawings:
With reference to Fig. 1, be equipped with microcomputer 13 in the central authorities of the control part 12 of electric potential therapeutic apparatus 11.Be provided with the switch portion 14 of handover operation, the setting of output voltage and the setting of timer etc. of exporting again at this control part 12, and this switching signal is input to above-mentioned microcomputer 13 in order to execution voltage.By this, this microcomputer 13 is exported set relay 15 and the voltage commutation circuit 16 of controlling signal to certainly.
And as shown in Figure 2, closed relay 15 and make arbitrary two-way three polar bodys 17 conductings in plural two-way three polar bodys (TRIAC) of voltage commutation circuit 16, and at the terminal 20,20 of the primary winding 19 of high pressure generating unit 18 ... in terminal 20 and common terminal 20 corresponding to two-way three polar bodys 17 of this conducting
COMBetween flow through the AC power electric current of being supplied with from attaching plug 21.By this, produce the output voltage of the size (thousands of volt) that sets with above-mentioned switch portion 14 at the secondary coil 22 of high pressure generating unit 18.This output voltage system is output to electrical piece 23, is become high potential by the curer and make to be sitting on this electrical piece 23.And to imposed set result of treatment by the curer.
Be provided with the protective resistor 24,25 of big resistance at the two ends of above-mentioned secondary coil 22, and make output voltage become zero as much as possible.Yet if poor by curer's state of insulation, this output current increases, and the danger of electric shock is arranged.Therefore, in the common terminal 20 of primary winding 19
COMAnd the distribution between the protective resistor 25 is provided with the current detecting usefulness resistor 26 of small resistor, and detects the electric current (output current) that flows through this current detecting usefulness resistor 26 by current detecting part 27.And this detected value I as shown in Figure 1,
OLTBe input to above-mentioned microcomputer.In view of the above, microcomputer 13 is implemented as following overcurrent protection processing.
That is, as shown in Figure 3, if output voltage is set 9000 volts at first for and is implemented treatment (step 101), then microcomputer 13 reads maximum permissible value (the permissible higher limit under this voltage of 9000 volts that is stored in internal memory in advance, be 0.5mA) herein, and till setting-up time has been expired (step 102 → step 103), monitor the detected value I that is detected (step 103) with above-mentioned current detecting part 27
OUTWhether surpass this 0.5mA (step 104).If be no more than 0.5mA and the setting-up time of timer full (step 102 → step 999), then above-mentioned relay 15 leave and stop output (step 999).
On the other hand, if detected value I
OUTSurpass 0.5mA, and for example become 0.6mA (step 104 → step 201), then overcurrent protective device action.That is microcomputer 13 switches above-mentioned TURP and changes two-way three polar bodys 17 of circuit 16, and makes output voltage be reduced to 6000 volts (step 201) by 9000 volts.By this, make detected value I
OUTBecome 0.4mA, and can avoid the danger of being got an electric shock by the curer.Setting voltage more originally is low and continue output again, thus TD not, and the timing of continuation timer, so judge this setting-up time whether full (step 202).And output current also continues to detect.
And in this circuit overcurrent protection action phase, microcomputer 13 reads from internal memory and replys feasible value (by 6000 volts of higher limits that can return back to 9000 volts original output current, being 0.2mA) herein, and with above-mentioned detected value I
OUTRelatively (step 204).And improve by curer's state of insulation and detected value I
OUTWhen being decreased to till the 0.2mA (step 204 → step 101), two-way three polar bodys 17 are switched person originally, and output voltage returns back to 9000 volts (step 101).By this, detected value I
OUTBecome 0.3mA, and this value is for below the above-mentioned maximum permissible value (0.5mA), so under 9000 volts output, continue treatment.So,, also automatically return back to set condition originally, so the convenience that can not detract even do not operate electric potential therapeutic apparatus 11 again.
And in Fig. 1, power circuit 28 supply powers are to control part 12, and display part 29 shows various control informations usefulness.Make output voltage be reduced to when low than set point (when step 201 becomes the loop to step 204, that is, during the circuit overcurrent protection action) because of output current surpasses maximum permissible value, the output of above-mentioned display part 29 shows flicker.By this, known that by the curer state of insulation of oneself is poor.And if correctly lay insulating trip and insulation cushion again, and improve state of insulation, then can be as above-mentioned, output voltage returns back to set point originally.
Though the present invention discloses as above with preferred embodiment, so it is not that any those of ordinary skill in the art is the protection range of claims of the present invention to the deduction that the present invention did in order to qualification the present invention.
Claims (1)
1, a kind of overcurrent protective device of electric potential therapeutic apparatus is set up a current detecting part and a control part that detects the output current of high pressure generating unit in the high pressure generating unit of electric potential therapeutic apparatus; It is characterized in that:
Described current detecting part also is electrically connected with control part; The electric current of the high pressure generating unit output of the electric potential therapeutic apparatus that detects when current detecting part surpasses maximum permissible value, and then output detection signal is to control part, and control part is carried out voltage and switched and reduce output voltage; After output voltage reduced, current detecting part detected the output current of high pressure generating unit once more, when detected value is lower than permissible value, then outputed signal to control part and made output voltage return back to the preceding value of reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120559 CN1464610A (en) | 2002-06-05 | 2002-06-05 | Overcurrent protecting device of potential therapeutic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120559 CN1464610A (en) | 2002-06-05 | 2002-06-05 | Overcurrent protecting device of potential therapeutic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1464610A true CN1464610A (en) | 2003-12-31 |
Family
ID=29742490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02120559 Pending CN1464610A (en) | 2002-06-05 | 2002-06-05 | Overcurrent protecting device of potential therapeutic equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN1464610A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606778A (en) * | 2013-11-01 | 2015-05-13 | 科之美保健株式会社 | Potential therapeutic instrument |
| KR20220120281A (en) * | 2021-02-23 | 2022-08-30 | 주식회사 세라젬 | Circuit for preventing electric shock of therapy device using electric potential |
| KR20220120280A (en) * | 2021-02-23 | 2022-08-30 | 주식회사 세라젬 | Therapy device using electric potential for controling electric current |
-
2002
- 2002-06-05 CN CN 02120559 patent/CN1464610A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606778A (en) * | 2013-11-01 | 2015-05-13 | 科之美保健株式会社 | Potential therapeutic instrument |
| CN104606778B (en) * | 2013-11-01 | 2018-08-28 | 科之美保健株式会社 | Potential therapeutic instrument |
| KR20220120281A (en) * | 2021-02-23 | 2022-08-30 | 주식회사 세라젬 | Circuit for preventing electric shock of therapy device using electric potential |
| KR20220120280A (en) * | 2021-02-23 | 2022-08-30 | 주식회사 세라젬 | Therapy device using electric potential for controling electric current |
| KR102615257B1 (en) * | 2021-02-23 | 2023-12-19 | 주식회사 세라젬 | Circuit for preventing electric shock of therapy device using electric potential |
| KR102721027B1 (en) * | 2021-02-23 | 2024-10-23 | 주식회사 세라젬 | Therapy device using electric potential for controling electric current |
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