CN2641881Y - Overvoltage protector for generator of heavy truck - Google Patents
Overvoltage protector for generator of heavy truck Download PDFInfo
- Publication number
- CN2641881Y CN2641881Y CN 03269293 CN03269293U CN2641881Y CN 2641881 Y CN2641881 Y CN 2641881Y CN 03269293 CN03269293 CN 03269293 CN 03269293 U CN03269293 U CN 03269293U CN 2641881 Y CN2641881 Y CN 2641881Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- voltage
- relay
- triode
- generator
- Prior art date
- 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 - Lifetime
Links
- 230000001012 protector Effects 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 230000005284 excitation Effects 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims description 14
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009510 drug design Methods 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000004821 Contact adhesive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses an over-voltage protector for a generator of a heavy duty truck, and the protector consists of a thyristor element SCR, a relay J, a triode T1, diodes D and D1, a stabilivolt tube Z, resistor elements, and capacitor elements in electrical connection. When the output voltage is higher than a set value, the stabilivolt tube Z can receive high voltage from a voltage-dividing circuit consisting of a R1 and a R2, and the stabilivolt tube Z be broken through, so that the potential between the base electrode and the emitting electrode of the triode T1 is suddenly increased and conducted through, and the through-conduction of the thyristor element SCR is initiated, so the normally-open contact of the relay J is attracted to close, resulting into the grounding of the excitation voltage D+ of the vehicle generator to be shorted, and the generator loses the magnetic current and terminates the power generation. The utility model, therefore, can protect the CPU intelligent controller against breakdown or burnout by operating over-voltage and, besides, can avoid the crack of the accumulator or the damage to other vehicle electric appliances with the advantages of rational design, simple structure, easy production, small size, and low cost as well as reliable and safe operation.
Description
(1) technical field
The utility model relates to a kind of overvoltage protector, especially a kind of heavy-duty car generator overvoltage protector.
(2) background technology
At present, the electric part of heavy-duty car has adopted the CPU intelligence control system, and its operating voltage is provided by automobile current generator and storage battery.When the stable-pressure device that is arranged on generator inside hinders or components and parts damage and when ineffective for some reason, the output voltage of generator can sharply raise, the CPU intelligent controller can burn out because of operating voltage is too high and breakdown, also can cause the explosion of storage battery and the damage of other car electrics simultaneously.But heavy-duty car does not all have the generator over-pressure safety device.
(3) summary of the invention
For remedying the deficiencies in the prior art, the utility model provides a kind of reasonable in design, simple in structure, easy to manufacture, volume is little, cost is low, safe and reliable heavy-duty car generator overvoltage protector.
A kind of heavy-duty car generator overvoltage protector, by thyristor SCR, relay J, triode T1, diode D, D1, voltage-stabiliser tube Z and resistance, holding element forms, the minus earth of thyristor SCR, be connected in series relay J in the anode circuit, the normally opened contact one end ground connection of relay J, the other end is connected with the excitation voltage D+ of generator, solenoid one end of relay is connected with the anode of thyristor SCR, the collector electrode of the other end and triode T1, resistance R 1, R1a connects, and connect No. 15 power supplys of key switch control, the solenoid two ends cross-over connection diode D1 of relay; The gate pole of thyristor SCR is connected with resistance R 5, R4; The end in addition of resistance R 5 is pressed ground, and the other end of resistance R 4 is connected with the emitter of triode T1; The base stage of triode is connected with the positive pole of resistance R 3 and voltage-stabiliser tube Z, the other end ground connection of resistance R 3; The negative pole of voltage-stabiliser tube Z is connected the other end ground connection of electrochemical capacitor C1 and resistance R 2 by diode D with electrochemical capacitor C1, R1a, resistance R 1 and R2.
The resistance of resistance R 1, R1a, R2, R3, R4 and R5 is respectively 2K Ω-4K Ω, 2K Ω-4K Ω, 500 Ω-1K Ω, 800 Ω-1.2K Ω, 50 Ω-150 Ω and 1K Ω-2K Ω; The capacitance of electrochemical capacitor C1 is 47 μ F-68 μ F.
Diode D and D1 can select IN4007 for use, and voltage-stabiliser tube Z can select for use-2CW56, and triode T1 can select 2N5551 for use, and thyristor SCR can select 2P4M for use, and relay J can be selected V23134 for use.
When the output voltage of automobile current generator is higher than setting voltage value, voltage-stabiliser tube Z obtains a very high voltage from the bleeder circuit of R1 and R2 composition, voltage-stabiliser tube Z is breakdown, triode T1 base stage and emission electrode potential are strengthened suddenly, the rapid conducting of T1 also triggers thyristor SCR conducting, the normally opened contact of relay J because of the conducting of thyristor by adhesive, make the excitation voltage D+ ground short circuit of automobile current generator, generator stops generating because of losing exciting curent.At this moment, the CPU intelligence control system is by storage battery power supply.During the normally opened contact adhesive of relay, the alarm indication takes place by forming the loop between relay and the negative pole in indicator light P.
The utlity model has advantage reasonable in design, simple in structure, easy to manufacture, that volume is little, cost is low, safe and reliable.
(4) description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Wherein, 1, the built-in adjuster of generator, 15, No. 15 power supplys of key switch control, the excitation voltage contact of D+, generator, B+, battery positive voltage terminals, W, tachometer terminals.
(5) embodiment
Embodiment: electrical schematic diagram of the present utility model as shown in Figure 1, by thyristor SCR, relay J, diode T1, diode D, D1, voltage-stabiliser tube Z and resistance, holding element forms, the minus earth of thyristor SCR, be connected in series relay J in the anode circuit, the normally opened contact one end ground connection of relay J, the other end is connected with the excitation voltage D+ of generator, solenoid one end of relay is connected with the anode of thyristor SCR, the collector electrode of the other end and triode T1, resistance R 1, R1a connects, and connect No. 15 power supplys of key switch control, the solenoid two ends cross-over connection diode D1 of relay; The gate pole of thyristor SCR is connected with resistance R 5, R4; The other end ground connection of resistance R 5, the other end of resistance R 4 is connected with the emitter of triode T1; The base stage of triode is connected with the positive pole of resistance R 3 and voltage-stabiliser tube Z, the other end ground connection of resistance R 3; The negative pole of voltage-stabiliser tube Z is connected the other end ground connection of electrochemical capacitor C1 and resistance R 2 by diode D with electrochemical capacitor C1, R1a, resistance R 1 and R2.The resistance of resistance R 1, R1a, R2, R3, R4 and R5 is respectively 3K Ω, 3K Ω, 750 Ω, 950 Ω, 100 Ω and 1.5K Ω; The capacitance of electrochemical capacitor C1 is 50 μ F.Diode D and D1 can select IN4007 for use, and voltage-stabiliser tube Z can select for use-2CW56, and triode T1 can select 2N5551 for use, and thyristor SCR can select 2P4M for use, and relay J can be selected V23134 for use.
Claims (3)
1, a kind of heavy-duty car generator overvoltage protector, it is characterized in that, by thyristor SCR, relay J, triode T1, diode D, D1, voltage-stabiliser tube Z and resistance, holding element forms, the minus earth of thyristor SCR, be connected in series relay J in the anode circuit, the normally opened contact one end ground connection of relay J, the other end is connected with the excitation voltage D+ of generator, solenoid one end of relay is connected with the anode of thyristor SCR, the collector electrode of the other end and triode T1, resistance R 1, R1a connects, and connect No. 15 power supplys of key switch control, the solenoid two ends cross-over connection diode D1 of relay; The gate pole of thyristor SCR is connected with resistance R 5, R4; The other end ground connection of resistance R 5, the other end of resistance R 4 is connected with the emitter of triode T1; The base stage of triode is connected with the positive pole of resistance R 3 and voltage-stabiliser tube Z, the other end ground connection of resistance R 3; The negative pole of voltage-stabiliser tube Z is connected the other end ground connection of electrochemical capacitor C1 and resistance R 2 by diode D with electrochemical capacitor C1, R1a, resistance R 1 and R2.
2, heavy-duty car generator overvoltage protector as claimed in claim 1, it is characterized in that the resistance of described resistance R 1, R1a, R2, R3, R4 and R5 is respectively 2K Ω-4K Ω, 2K Ω-4K Ω, 500 Ω-1K Ω, 800 Ω-1.2K Ω, 50 Ω-150 Ω and 1K Ω-2K Ω; The capacitance of electrochemical capacitor C1 is 47 μ F-68 μ F.
3, heavy-duty car generator overvoltage protector as claimed in claim 1 is characterized in that, described diode D and D1 can select IN4007 for use; voltage-stabiliser tube Z can select for use-2CW56; triode T1 can select 2N5551 for use, and thyristor SCR can select 2P4M for use, and relay J can be selected V23134 for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269293 CN2641881Y (en) | 2003-08-05 | 2003-08-05 | Overvoltage protector for generator of heavy truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269293 CN2641881Y (en) | 2003-08-05 | 2003-08-05 | Overvoltage protector for generator of heavy truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641881Y true CN2641881Y (en) | 2004-09-15 |
Family
ID=34299900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03269293 Expired - Lifetime CN2641881Y (en) | 2003-08-05 | 2003-08-05 | Overvoltage protector for generator of heavy truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641881Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856906A (en) * | 2012-10-12 | 2013-01-02 | 苏州依斯克拉汽车电器有限公司 | Automotive alternator phase signal filter |
| CN106394436A (en) * | 2016-11-02 | 2017-02-15 | 安徽华菱汽车有限公司 | Vehicle power supply safety optimization method and device |
| CN107546727A (en) * | 2017-09-14 | 2018-01-05 | 珠海格力电器股份有限公司 | Switching Power Supply bus overvoltage protection circuit |
| CN109142987A (en) * | 2018-10-17 | 2019-01-04 | 成都信息工程大学 | A kind of control circuit of power grid detection and protection |
-
2003
- 2003-08-05 CN CN 03269293 patent/CN2641881Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856906A (en) * | 2012-10-12 | 2013-01-02 | 苏州依斯克拉汽车电器有限公司 | Automotive alternator phase signal filter |
| CN102856906B (en) * | 2012-10-12 | 2015-01-28 | 苏州依斯克拉汽车电器有限公司 | Automotive alternator phase signal filter |
| CN106394436A (en) * | 2016-11-02 | 2017-02-15 | 安徽华菱汽车有限公司 | Vehicle power supply safety optimization method and device |
| CN107546727A (en) * | 2017-09-14 | 2018-01-05 | 珠海格力电器股份有限公司 | Switching Power Supply bus overvoltage protection circuit |
| CN109142987A (en) * | 2018-10-17 | 2019-01-04 | 成都信息工程大学 | A kind of control circuit of power grid detection and protection |
| CN109142987B (en) * | 2018-10-17 | 2023-11-17 | 国网浙江省电力有限公司常山县供电公司 | Control circuit for power grid detection and protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NO. 165, YINGXIONGSHAN ROAD, ZHONG DISTRICT, JINAN Free format text: FORMER NAME OR ADDRESS: NO. 53, WUYINGSHANZHONG ROAD, JINAN CITY, SHANDONG PROVINCE |
|
| CP03 | Change of name, title or address |
Patentee address after: No. 165, heroic mountain road, Shizhong District, Shandong, Ji'nan Patentee address before: Ji'nan City, Shandong Province, shadowless Hill Road, No. 53 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130805 Granted publication date: 20040915 |