CN105098702A - Overvoltage protector - Google Patents
Overvoltage protector Download PDFInfo
- Publication number
- CN105098702A CN105098702A CN201510535848.9A CN201510535848A CN105098702A CN 105098702 A CN105098702 A CN 105098702A CN 201510535848 A CN201510535848 A CN 201510535848A CN 105098702 A CN105098702 A CN 105098702A
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- CN
- China
- Prior art keywords
- effect transistor
- field effect
- upper cover
- stabilizing didoe
- voltage stabilizing
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Abstract
The invention discloses an overvoltage protector, which comprises a base, an upper cover, a circuit board, a plug, a universal serial bus (USB) connector, a light-emitting diode (LED) lamp, a handle and a protective sleeve, wherein the upper cover is arranged on the base; the circuit board is arranged between the base and the upper cover; an overvoltage protection circuit is arranged on the circuit board; the plug is connected with an input end of the overvoltage protection circuit; the USB connector is connected with an output end of the overvoltage protection circuit; the LED lamp is arranged on the upper cover; the handle is arranged on the upper cover and is wrapped with an anti-skid sleeve; and anti-skid bumps are arranged on the anti-skid sleeve. According to the overvoltage protector, the damages to a human body caused by leakage current are prevented; the LED lamp can provide light at night or when the light is relatively dark; the problem that power supply cannot be found out or is touched in the dark is prevented; the damages to electrical equipment and a circuit caused by overlarge voltage in the circuit are prevented; the loss is avoided; and the overvoltage protector is simple in structure, convenient to use and beneficial to popularization, and has high market value.
Description
Technical field
The present invention relates to a kind of power equipment, specifically a kind of overvoltage protector.
Background technology
It is too high too low that line voltage avoided in use most by all electrical equipment, no matter industrial equipment or household electrical appliance have a rated voltage, voltage range is defined as 170V-240V usually.If exceed this voltage just beyond dielectric strength and the withstand voltage of electrical equipment, therefore electrical equipment can generate heat, puncture and burn out even on fire.At present because zero line is stolen, ageing equipment, technical failure, human failure, natural calamity, power failure are sent a telegram here etc. again, and voltage instability that reason causes, overtension too lowly cause a large amount of electrical equipment in large section to be burned, the situation of burning constantly occurs, people suffer heavy losses.
Summary of the invention
The object of the present invention is to provide a kind of overvoltage protector, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of overvoltage protector, comprise base, upper cover, wiring board, plug, USB joint, LED, handle and protective jacket, described base installs upper cover, wiring board is provided with between base and upper cover, wiring board is provided with overvoltage crowbar, described plug is connected with overvoltage crowbar input, USB joint is connected with the output of overvoltage crowbar, on cover and be provided with LED, on cover and be provided with handle, handle is enclosed with Anti-slip cover, Anti-slip cover is provided with anti-skidding salient point, Anti-slip cover is that insulating material is made, described overvoltage crowbar comprises filter capacitor C1, filter capacitor C2, voltage stabilizing didoe DW1, voltage stabilizing didoe DW2, field effect transistor BG1, field effect transistor BG2, amplifier IC, field effect transistor BG1 side pin is connected with supply voltage E+, field effect transistor BG1 opposite side pin is connected with the power interface end of amplifier IC, field effect transistor BG1 middle pin is connected with the power interface end of amplifier IC, voltage stabilizing didoe DW1 plus earth, voltage stabilizing didoe DW1 negative pole is connected with the power interface end of amplifier IC, filter capacitor C1 is in parallel with voltage stabilizing didoe DW1, filter capacitor C1 minus earth, field effect transistor BG2 side pin is connected with supply voltage E-, field effect transistor BG2 opposite side pin is connected with the ground interface end of amplifier IC, field effect transistor BG1 middle pin is connected with supply voltage E-, voltage stabilizing didoe DW2 plus earth, voltage stabilizing didoe DW2 negative pole is connected with the ground interface end of amplifier IC.
As the further scheme of the present invention: described base and upper cover are that insulating material is made.
As the present invention's further scheme: described field effect transistor BG1, field effect transistor BG2 model are 3DJ6.
As the present invention's further scheme: described filter capacitor C1, filter capacitor C2 get 10 ~ 20uF.
Compared with prior art, the invention has the beneficial effects as follows: upper cover of the present invention and base protection circuit plate, prevent extraneous steam, dusts etc. cause short circuit or other damages to circuit element, affect circuit working, prevent electric leakage from damaging the person simultaneously, LED provides light when night or dark, prevent from can not find in dark or touching power supply, avoid damaging the person, handle conveniently lifts, Anti-slip cover is avoided getting an electric shock, improve personal safety, structure is simple, easy to use, prevent that voltage in circuit is excessive to be impacted electric equipment and circuit, avoid causing damage, there is very high market value, be beneficial to popularization.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of overvoltage protector;
Fig. 2 is overvoltage crowbar schematic diagram in a kind of overvoltage protector;
Fig. 3 is the structural representation of the handle in a kind of overvoltage protector.
In figure: 1. base, 2. upper cover, 3. wiring board, 31. overvoltage crowbars, 4. plug, 5.USB joint, 6.LED lamp, 7. handle, 8. protective jacket, 9. anti-skidding salient point.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1-3, a kind of overvoltage protector, comprise base 1, upper cover 2, wiring board 3, plug 4, USB joint 5, LED 6, handle 7 and protective jacket 8, described base 1 installs upper cover 2, wiring board 3 is provided with between base 1 and upper cover 2, wiring board 3 is provided with overvoltage crowbar 31, base 1 and upper cover 2 are made for insulating material, upper cover 2 and base 1 protection circuit plate 3, prevent extraneous steam, dusts etc. cause short circuit or other damages to circuit element, affect circuit working, prevent electric leakage from damaging the person simultaneously, described plug 4 is connected with overvoltage crowbar 31 input, USB joint 5 is connected with the output of overvoltage crowbar 31, upper cover 2 is provided with LED 6, LED 6 provides light when night or dark, prevent from can not find in dark or touching power supply, avoid damaging the person, upper cover 2 is provided with handle 7, handle 7 is enclosed with Anti-slip cover 8, Anti-slip cover 8 is provided with anti-skidding salient point 9, Anti-slip cover 8 is made for insulating material, handle 7 conveniently lifts, Anti-slip cover 8 is avoided getting an electric shock, improve personal safety, described overvoltage crowbar 31 comprises filter capacitor C1, filter capacitor C2, voltage stabilizing didoe DW1, voltage stabilizing didoe DW2, field effect transistor BG1, field effect transistor BG2, amplifier IC, field effect transistor BG1 side pin is connected with supply voltage E+, field effect transistor BG1 opposite side pin is connected with the power interface end of amplifier IC, field effect transistor BG1 middle pin is connected with the power interface end of amplifier IC, voltage stabilizing didoe DW1 plus earth, voltage stabilizing didoe DW1 negative pole is connected with the power interface end of amplifier IC, filter capacitor C1 is in parallel with voltage stabilizing didoe DW1, filter capacitor C1 minus earth, field effect transistor BG2 side pin is connected with supply voltage E-, field effect transistor BG2 opposite side pin is connected with the ground interface end of amplifier IC, field effect transistor BG1 middle pin is connected with supply voltage E-, voltage stabilizing didoe DW2 plus earth, voltage stabilizing didoe DW2 negative pole is connected with the ground interface end of amplifier IC, filter capacitor C2 is in parallel with voltage stabilizing didoe DW2, filter capacitor C2 positive pole pole ground connection, voltage stabilizing didoe DW1, voltage stabilizing didoe DW2 gets voltage stabilizing value a little less than integrated transporting discharging maximum functional supply voltage, and be greater than real work supply voltage E+, the voltage stabilizing didoe of supply voltage E-, field effect transistor BG1, field effect transistor BG2 is connected into constant-current source form, and select saturated drain-source current slightly larger than the field effect transistor of integrated operational amplifier circuit operating current, field effect transistor BG1, field effect transistor BG2 model is 3DJ6, filter capacitor C1, filter capacitor C2 gets 10 ~ 20uF.
Operation principle of the present invention is: upper cover of the present invention and base protection circuit plate; prevent extraneous steam, dust etc. from causing short circuit or other damages to circuit element; affect circuit working; prevent electric leakage from damaging the person, LED provides light when night or dark, prevent from can not find in dark or touching power supply simultaneously; avoid damaging the person; handle conveniently lifts, and Anti-slip cover is avoided getting an electric shock, and improves personal safety.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (4)
1. an overvoltage protector, comprise base, upper cover, wiring board, plug, USB joint, LED, handle and protective jacket, described base installs upper cover, wiring board is provided with between base and upper cover, wiring board is provided with overvoltage crowbar, it is characterized in that, described plug is connected with overvoltage crowbar input, USB joint is connected with the output of overvoltage crowbar, on cover and be provided with LED, on cover and be provided with handle, handle is enclosed with Anti-slip cover, Anti-slip cover is provided with anti-skidding salient point, Anti-slip cover is that insulating material is made, described overvoltage crowbar comprises filter capacitor C1, filter capacitor C2, voltage stabilizing didoe DW1, voltage stabilizing didoe DW2, field effect transistor BG1, field effect transistor BG2, amplifier IC, field effect transistor BG1 side pin is connected with supply voltage E+, field effect transistor BG1 opposite side pin is connected with the power interface end of amplifier IC, field effect transistor BG1 middle pin is connected with the power interface end of amplifier IC, voltage stabilizing didoe DW1 plus earth, voltage stabilizing didoe DW1 negative pole is connected with the power interface end of amplifier IC, filter capacitor C1 is in parallel with voltage stabilizing didoe DW1, filter capacitor C1 minus earth, field effect transistor BG2 side pin is connected with supply voltage E-, field effect transistor BG2 opposite side pin is connected with the ground interface end of amplifier IC, field effect transistor BG1 middle pin is connected with supply voltage E-, voltage stabilizing didoe DW2 plus earth, voltage stabilizing didoe DW2 negative pole is connected with the ground interface end of amplifier IC.
2. a kind of overvoltage protector according to claim 1, is characterized in that, described base and upper cover are that insulating material is made.
3. a kind of overvoltage protector according to claim 1, is characterized in that, described field effect transistor BG1, field effect transistor BG2 model are 3DJ6.
4. a kind of overvoltage protector according to claim 1, is characterized in that, described filter capacitor C1, filter capacitor C2 get 10 ~ 20uF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535848.9A CN105098702A (en) | 2015-08-27 | 2015-08-27 | Overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535848.9A CN105098702A (en) | 2015-08-27 | 2015-08-27 | Overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105098702A true CN105098702A (en) | 2015-11-25 |
Family
ID=54578582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510535848.9A Pending CN105098702A (en) | 2015-08-27 | 2015-08-27 | Overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105098702A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5534795A (en) * | 1993-06-07 | 1996-07-09 | National Semiconductor Corporation | Voltage translation and overvoltage protection |
| CN203014468U (en) * | 2013-01-16 | 2013-06-19 | 深圳市星科龙科技有限公司 | Over-current over-voltage charging protection charger |
| CN103887785A (en) * | 2012-12-20 | 2014-06-25 | 海洋王（东莞）照明科技有限公司 | Operation amplification power supply overvoltage protective circuit |
| CN204392189U (en) * | 2015-01-08 | 2015-06-10 | 成都爪媒科技有限公司 | Operational amplifier is powered overvoltage crowbar |
| CN204538786U (en) * | 2015-04-08 | 2015-08-05 | 湖南理工职业技术学院 | A kind of overvoltage charge protection charger |
-
2015
- 2015-08-27 CN CN201510535848.9A patent/CN105098702A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5534795A (en) * | 1993-06-07 | 1996-07-09 | National Semiconductor Corporation | Voltage translation and overvoltage protection |
| CN103887785A (en) * | 2012-12-20 | 2014-06-25 | 海洋王（东莞）照明科技有限公司 | Operation amplification power supply overvoltage protective circuit |
| CN203014468U (en) * | 2013-01-16 | 2013-06-19 | 深圳市星科龙科技有限公司 | Over-current over-voltage charging protection charger |
| CN204392189U (en) * | 2015-01-08 | 2015-06-10 | 成都爪媒科技有限公司 | Operational amplifier is powered overvoltage crowbar |
| CN204538786U (en) * | 2015-04-08 | 2015-08-05 | 湖南理工职业技术学院 | A kind of overvoltage charge protection charger |
Non-Patent Citations (1)
| Title |
|---|
| 冀学美: "电源管理集成电路高精度高可靠性设计研究", 《中国博士学位论文全文数据库信息科技辑》 * |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |