CN204910488U - Safety protection circuit of low frequency therapeutic instrument - Google Patents

Safety protection circuit of low frequency therapeutic instrument Download PDF

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Publication number
CN204910488U
CN204910488U CN201520660379.9U CN201520660379U CN204910488U CN 204910488 U CN204910488 U CN 204910488U CN 201520660379 U CN201520660379 U CN 201520660379U CN 204910488 U CN204910488 U CN 204910488U
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China
Prior art keywords
diode
emitting diode
negative pole
light emitting
zener diode
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CN201520660379.9U
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Chinese (zh)
Inventor
张文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Trinidad times Yikang medical Polytron Technologies Inc
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Chengdu A Thousand Li Electronics Equipment Co Ltd
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Priority to CN201520660379.9U priority Critical patent/CN204910488U/en
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Abstract

The utility model discloses a safety protection circuit of low frequency therapeutic instrument, including output seat P1, emitting diode D1 and D2, diode D3, zener diode D4 and D5, emitting diode D6 and resistance R1, the anodal of emitting diode D1 and emitting diode D2's negative pole is connected simultaneously to output seat P1's port 3, emitting diode D1's negative pole and emitting diode D2's anodal equal connecting resistance R1's same one end, diode D3's positive pole is connected to resistance R1's the other end, zener diode D4's negative pole is connected to diode D3's negative pole, zener diode D4's the anodal negative pole of connecting zener diode D5, zener diode D5's the anodal positive pole of connecting emitting diode D6, output seat P1's port 1 is connected to emitting diode D6's negative pole. The utility model discloses an above -mentioned circuit can avoid too high or low excessively voltage to damage the low frequency therapeutic instrument, improves the life of low frequency therapeutic instrument.

Description

A kind of safety protective circuit of low-frequency therapy apparatus
Technical field
This utility model relates to medical health field, is specifically related to a kind of safety protective circuit of low-frequency therapy apparatus.
Background technology
Low-frequency therapy apparatus is the one of microwave therapy apparatus, mainly utilizes electromagnetic comparatively low-frequency range to carry out health care.Low-frequency therapy apparatus physical agent is acted on the meridians of partes corporis humani position and naturopathy is carried out at acupuncture point, thus improve clinical effectiveness.It has the pulse voltage of automatic frequency-conversion, can carry out the treatment of superficial part and deep focus in penetrate tissue depths.There is dredging the meridian, blood circulation promoting and blood stasis dispelling, pain relieving, relaxing muscles and tendons, adjust the vital organs of the human body, the effect of Yin Yang balancing.Neural irritability and inhibition can be regulated, activate the cytoactive of perilesional tissue, strengthen local blood circulation and metabolic capabilities, improve immunity, endocrine regulation; Perilesional tissue is had to the effect of repairing and treating.Lack special protection circuit in existing low-frequency therapy apparatus, low-frequency therapy apparatus is in use unstable due to supply voltage, occurs too high or too low situation, damages low-frequency therapy apparatus.
Utility model content
This utility model overcomes the deficiencies in the prior art, provides a kind of safety protective circuit of low-frequency therapy apparatus, and this circuit can avoid too high or too low voltage to damage low-frequency therapy apparatus, improves the service life of low-frequency therapy apparatus.
For solving above-mentioned technical problem, this utility model is by the following technical solutions: a kind of safety protective circuit of low-frequency therapy apparatus, comprise and export seat P1, light emitting diode D1, light emitting diode D2, diode D3, Zener diode D4, Zener diode D5, light emitting diode D6 and resistance R1, port 3 positive pole of connecting luminous diode D1 and the negative pole of light emitting diode D2 simultaneously of described output seat P1, same one end of the negative pole of light emitting diode D1 and the positive pole equal contact resistance R1 of light emitting diode D2, the other end of resistance R1 connects the positive pole of diode D3, the negative pole of diode D3 connects the negative pole of Zener diode D4, the positive pole of Zener diode D4 connects the negative pole of Zener diode D5, the positive pole of the positive pole connecting luminous diode D6 of Zener diode D5, the negative pole of light emitting diode D6 connects the port one exporting seat P1.Low-frequency therapy apparatus is connected to and exports on seat P1 in use, the voltage exported on seat P1 is sinusoidal voltage, according to the single-phase on state characteristic of diode, forward conduction, the function of reverse cut-off, part electric energy conversion is that luminous energy loses by the loop that the voltage part exporting seat P1 upper port 3 consists of light emitting diode D1 and light emitting diode D2.Part voltage, then by after light emitting diode D1, transmits along resistance R1, successively through diode D3, Zener diode D4, Zener diode D5, light emitting diode D6, returns the port one exporting seat P1.Because light emitting diode forward VA characteristic curve is very steep, during use then series limiting resistor R1 to control the electric current by pipe.The design of two Zener diode D4 and D5 is then allow the positive half-cycle signal in sine-shaped voltage signal pass through, for voltage signal in the negative half-cycle signal in sine-shaped voltage signal, then only retain absolute value in voltage signal and be less than the part of Zener diode D4 and D5 breakdown voltage, play the effect of burning voltage, burning voltage after this process resupplies low-frequency therapy apparatus and uses, avoid too high voltage or too low voltage to damage low-frequency therapy apparatus, improve the service life of low-frequency therapy apparatus.
The model of described Zener diode D4 and Zener diode D5 is IN4756A.The Zener diode of this kind of model is point-contact type miniature tube, and voltage stabilizing value is 47 volts, can meet the needs of low-frequency therapy apparatus completely.
The model of described output seat P1 is 2510-3PIN.
The model of described diode D3 is IN4007.The general silicon materials commutation diode of Plastic Package type of N4007 to be packing forms be DO-41.The diode forward electric conduction of this model forces down, and On current is high, and Leakage Current is low, and overcurrent is high, and cost is low, is very suitable for using in protection circuit.
Compared with prior art, the beneficial effects of the utility model are:
1, this circuit utilizes diode forward conducting, the characteristic of reverse cut-off, be luminous energy by light emitting diode by part electric energy conversion, by multiple Zener diode by voltage stabilization in certain scope, finally this stable voltage supply low-frequency therapy apparatus is used, avoid too high or too low voltage to damage low-frequency therapy apparatus, improve the service life of low-frequency therapy apparatus.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Detailed description of the invention
Be further elaborated this utility model below in conjunction with accompanying drawing, embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, this utility model comprises output seat P1, light emitting diode D1, light emitting diode D2, diode D3, Zener diode D4, Zener diode D5, light emitting diode D6 and 10 kilo-ohm of resistance R1, port 3 positive pole of connecting luminous diode D1 and the negative pole of light emitting diode D2 simultaneously of described output seat P1, same one end of the negative pole of light emitting diode D1 and the positive pole equal contact resistance R1 of light emitting diode D2, the other end of resistance R1 connects the positive pole of diode D3, the negative pole of diode D3 connects the negative pole of Zener diode D4, the positive pole of Zener diode D4 connects the negative pole of Zener diode D5, the positive pole of the positive pole connecting luminous diode D6 of Zener diode D5, the negative pole of light emitting diode D6 connects the port one exporting seat P1.
Low-frequency therapy apparatus is connected to and exports on seat P1 in use, the voltage exported on seat P1 is sinusoidal voltage, according to the single-phase on state characteristic of diode, forward conduction, the function of reverse cut-off, part electric energy conversion is that luminous energy loses by the loop that the voltage part exporting seat P1 upper port 3 consists of light emitting diode D1 and light emitting diode D2.Part voltage, then by after light emitting diode D1, transmits along resistance R1, successively through diode D3, Zener diode D4, Zener diode D5, light emitting diode D6, returns the port one exporting seat P1.Because light emitting diode forward VA characteristic curve is very steep, during use then series limiting resistor R1 to control the electric current by pipe.The design of two Zener diode D4 and D5 is then allow the positive half-cycle signal in sine-shaped voltage signal pass through, for voltage signal in the negative half-cycle signal in sine-shaped voltage signal, then only retain absolute value in voltage signal and be less than the part of Zener diode D4 and D5 breakdown voltage, play the effect of burning voltage, burning voltage after this process resupplies low-frequency therapy apparatus and uses, avoid too high voltage or too low voltage to damage low-frequency therapy apparatus, improve the service life of low-frequency therapy apparatus.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: the model of described Zener diode D4 and Zener diode D5 is IN4756A.The Zener diode of this kind of model is point-contact type miniature tube, and voltage stabilizing value is 47 volts, can meet the needs of low-frequency therapy apparatus completely.
The model of described output seat P1 is 2510-3PIN.
The model of described diode D3 is IN4007.The general silicon materials commutation diode of Plastic Package type of 1N4007 to be packing forms be DO-41.The diode forward electric conduction of this model forces down, and On current is high, and Leakage Current is low, and overcurrent is high, and cost is low, is very suitable for using in protection circuit.
Just this utility model can be realized as mentioned above.

Claims (4)

1. the safety protective circuit of a low-frequency therapy apparatus, it is characterized in that: comprise and export seat P1, light emitting diode D1, light emitting diode D2, diode D3, Zener diode D4, Zener diode D5, light emitting diode D6 and resistance R1, port 3 positive pole of connecting luminous diode D1 and the negative pole of light emitting diode D2 simultaneously of described output seat P1, same one end of the negative pole of light emitting diode D1 and the positive pole equal contact resistance R1 of light emitting diode D2, the other end of resistance R1 connects the positive pole of diode D3, the negative pole of diode D3 connects the negative pole of Zener diode D4, the positive pole of Zener diode D4 connects the negative pole of Zener diode D5, the positive pole of the positive pole connecting luminous diode D6 of Zener diode D5, the negative pole of light emitting diode D6 connects the port one exporting seat P1.
2. the safety protective circuit of a kind of low-frequency therapy apparatus according to claim 1, is characterized in that: the model of described Zener diode D4 and Zener diode D5 is IN4756A.
3. the safety protective circuit of a kind of low-frequency therapy apparatus according to claim 1, is characterized in that: the model of described output seat P1 is 2510-3PIN.
4. the safety protective circuit of a kind of low-frequency therapy apparatus according to claim 1, is characterized in that: the model of described diode D3 is IN4007.
CN201520660379.9U 2015-08-30 2015-08-30 Safety protection circuit of low frequency therapeutic instrument Active CN204910488U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520660379.9U CN204910488U (en) 2015-08-30 2015-08-30 Safety protection circuit of low frequency therapeutic instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520660379.9U CN204910488U (en) 2015-08-30 2015-08-30 Safety protection circuit of low frequency therapeutic instrument

Publications (1)

Publication Number Publication Date
CN204910488U true CN204910488U (en) 2015-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520660379.9U Active CN204910488U (en) 2015-08-30 2015-08-30 Safety protection circuit of low frequency therapeutic instrument

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105126244A (en) * 2015-08-30 2015-12-09 成都千里电子设备有限公司 Low frequency therapeutic instrument protection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105126244A (en) * 2015-08-30 2015-12-09 成都千里电子设备有限公司 Low frequency therapeutic instrument protection circuit

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park

Patentee after: Sichuan Trinidad times Yikang medical Polytron Technologies Inc

Address before: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park

Patentee before: Chengdu a thousand li Electronics Equipment Co., Ltd

CP01 Change in the name or title of a patent holder