CN103825265A - Power source voltage stabilization protecting device of air conditioner of coach - Google Patents
Power source voltage stabilization protecting device of air conditioner of coach Download PDFInfo
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- CN103825265A CN103825265A CN201410058331.0A CN201410058331A CN103825265A CN 103825265 A CN103825265 A CN 103825265A CN 201410058331 A CN201410058331 A CN 201410058331A CN 103825265 A CN103825265 A CN 103825265A
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- air conditioner
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- generator
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Abstract
The invention discloses a power source voltage stabilization protecting device of an air conditioner of a coach. The power source voltage stabilization protecting device of the air conditioner of the coach comprises a relay, a first diode, a second diode, a capacitor and a resistor. A first coil pin of the relay is connected with the P end of the first diode and an air conditioner switch. A second coil pin of the relay is connected with a generator and an air conditioner load. A movable contact of the relay is connected with the N end of the first diode and the N end of the second diode. A normally open contact of the relay is connected with the excitation end of the generator. The P end of the second diode is connected with the air conditioner load and the generator. The resistor and the capacitor are both connected between the P end of the second diode and the second coil pin of the relay. The power source voltage stabilization protecting device of the air conditioner of the coach has the advantages that the voltage of an independent power supply system of the air conditioner is kept stable, electronic elements of the air conditioner are protected, no-load work of the generator is avoided, the service life of the generator is prolonged, and the power source voltage stabilization protecting device is easy to design, low in cost and easy to obtain.
Description
Technical field
The present invention relates to a kind of voltage-stabilizing protection device of coach air conditioner power supply, especially with the coach air conditioner power-supply system of independent generator.
Background technology
Along with the development and progress of electrical technology, increasing electronic equipment is applied on passenger vehicle, has greatly promoted fail safe, reliability and the comfortableness of car load, has proposed larger test also to energy output and the power generation performance of generator simultaneously.Part large intercity bus is after having installed retarder and electronic radiator fan additional, and car load power consumption has increased by one times, and summer is while turning on the aircondition, energy output deficiency, and voltage drop is obvious, is easy to burn out vehicle electrical device.The simple energy output that increases electric generator of vehicle, causes generator volume to increase, and difficulty is installed, and generating is harmonious to decline.Coach air conditioner power consumption is larger, accounts for the over half of car load power consumption, and works long hours in summer, is therefore the feasible program that solves vehicle electrical quantity not sufficient for air-conditioning system is independently equipped with a generator.Because air-conditioner generator is not connected with vehicle battery, according to the external characteristic of alternating current generator, in the time that air-conditioning load variations is larger, can cause air conditioner power source voltage instability, while cutting off load, also can produce the transient overvoltage that exceedes 60V, burn out the electric elements of air-conditioning system suddenly.
Summary of the invention
For solving prior art problem; the invention provides a kind of coach air conditioner power supply voltage-stabilizing protection device; the built-in big capacity electrolyte capacitor of this device and pressure release resistance are for stablizing air conditioner power source voltage; and absorb the electronic devices and components of overvoltage protection air-conditioning system; this device is designed with excitation control circuit simultaneously; avoid the long-time unloaded operation of independent generator, extend the generator life-span.
The technical solution adopted in the present invention is:
A kind of coach air conditioner power supply voltage-stabilizing protection device, comprises relay, the first diode and the second diode, electric capacity, resistance,
The first coil pin of described relay connects P end and the air-conditioning switch of the first diode, the second coil pin sending and receiving motor and air-conditioning load of relay, the armature contact of relay connects the N end of the first diode and the N end of the second diode, the excitation end of the normally opened contact sending and receiving motor of relay, the air-conditioning load of P termination and the generator of the second diode, described resistance and electric capacity are connected between the P end and the second coil pin of relay of the second diode respectively.
Operation principle of the present invention is: the first coil pin of relay is received after starting of air conditioner signal, relay adhesive, and the excitation end power supply that the normally opened contact of relay is independent generator, generator starts generating.When air-conditioning load changes while causing voltage fluctuation, electric capacity, by discharging and recharging the voltage that absorbs fluctuation, keeps the stable of air conditioner power source voltage, and electric capacity can also absorb remaining interchange and harmonic components after generator commutation simultaneously, further protects the stable of voltage.After air-conditioning is closed, relay disconnects, and generator stops generating, and the electric weight that electric capacity stores discharges by resistance, avoids occurring electric shock accidents, improves the fail safe of device.
As a further improvement on the present invention, described relay recommendation specification is 24VDC/20A.
Described electric capacity is electrochemical capacitor, and recommended maximum size is 22000 μ F/80V.
Described resistance is pressure release resistance, and recommendation specification is 100 Ω/50W.
Described first, second diode, recommendation specification is MIC10A10.
The invention has the beneficial effects as follows: be furnished with the hvac system of independent generator, install after the present invention, in the time of air-conditioning load variations, maintain the stable of air-conditioning electric power system voltage, protection air conditioner electronic components and parts.Avoid independent generator unloaded operation simultaneously, extend generator useful life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, a kind of coach air conditioner power supply voltage-stabilizing protection device, comprises relay K V1, diode D1 and D2, capacitor C 1, resistance R 1, and draws 4 terminals, is respectively T1, T2, T3, T4.T1 end is received after starting of air conditioner power supply signal, the 30 pin power supplies through diode D1 to KV1, KV1 adhesive simultaneously, the excitation end L power supply that 87 pin of KV1 are generator M to the T3 end through device, generator M starts generating for air-conditioning load R, and power from behavior excitation end L by diode D2, generator M realizes self-excitation generating, reduces the electric quantity consumption of electric generator of vehicle.The electric current that the effect of diode D1 oppositely ends generator M is the coil power supply of relay K V1, prevents that KV1 is not subject to the control of starting of air conditioner power supply signal.The effect of diode D2 is oppositely to end starting of air conditioner power supply signal to power to air-conditioning load R, resistance R 1 and capacitor C 1, avoids starting of air conditioner power supply signal circuit because bearing large electric current blowout F1.
When air-conditioning load R changes while causing voltage fluctuation; capacitor C 1 is by discharging and recharging the voltage that absorbs fluctuation; keep the stable of air conditioner power source voltage, capacitor C 1 can also absorb remaining interchange and harmonic components after generator M rectification simultaneously, further protects the stable of voltage.After air-conditioning is closed, the electric weight that capacitor C 1 stores discharges by resistance R 1, avoids occurring electric shock accidents, improves the fail safe of device.
Embodiment: when use, respective terminal of the present invention is reliably connected with ac control circuit and generator M, the wherein excitation end L of the B+ of T1 termination starting of air conditioner K switch, T2 termination air-conditioner generator, T3 termination air-conditioner generator M, the earth terminal B-of T4 termination air-conditioner generator M.Driver starts after air-conditioning, KV1 adhesive, and the excitation end L power supply that T3 end is independent generator M, generator M starts generating, and excites electricity to transfer self-excitation generating to by it.When air-conditioning load R changes while causing voltage fluctuation; capacitor C 1 is by discharging and recharging the voltage that absorbs fluctuation; keep the stable of air conditioner power source voltage, capacitor C 1 can also absorb remaining interchange and harmonic components after generator M rectification simultaneously, further protects the stable of voltage.When driver closes after starting of air conditioner switch, KV1 disconnects, and field power supply disappears, and air-conditioner generator M stops generating, and the electric weight that capacitor C 1 stores discharges by resistance R 1, avoids occurring electric shock accidents, improves the fail safe of device.
Described relay K V1, specification is 24VDC/20A, its 85 pin ejector T1 pin, is subject to the control of starting of air conditioner K switch, and is connected with the P end of diode D1; 86 pin ground connection; 30 pin connect the N end of diode D1, D2, the wherein positive pole of the P termination capacitor C1 of diode D2; 87 pin are normal open switch pin, and ejector T3 pin meets the excitation end L of air-conditioning system independent generator M.
Described capacitor C 1 is electrochemical capacitor, and capacity is 22000 μ F/80V, and anodal ejector T2 pin meets independent generator M power output end B+; Negative pole ejector T4 pin, meets independent generator M negative pole end B-.
Described resistance R 1 is pressure release resistance, is attempted by capacitor C 1 two ends, plays a part to consume capacitor C 1 electric weight, and specification is 100 Ω/50W.
Described diode D1, D2 play reverse cut-off current, and specification is MIC10A10.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make and distortion still in protection scope of the present invention.
Claims (5)
1. a coach air conditioner power supply voltage-stabilizing protection device, it is characterized in that, comprise relay, the first diode and the second diode, electric capacity, resistance, the first coil pin of described relay connects P end and the air-conditioning switch of the first diode, the second coil pin sending and receiving motor and air-conditioning load of relay, the armature contact of relay connects the N end of the first diode and the N end of the second diode, the excitation end of the normally opened contact sending and receiving motor of relay, the air-conditioning load of P termination and the generator of the second diode, described resistance and electric capacity are connected between the P end and the second coil pin of relay of the second diode respectively.
2. coach air conditioner power supply voltage-stabilizing protection device as claimed in claim 1, is characterized in that, described relay specification is 24VDC/20A.
3. coach air conditioner power supply voltage-stabilizing protection device as claimed in claim 1, is characterized in that, described electric capacity is electrochemical capacitor, and capacity is 22000 μ F/80V.
4. coach air conditioner power supply voltage-stabilizing protection device as claimed in claim 1, is characterized in that, described resistance is pressure release resistance, and specification is 100 Ω/50W.
5. coach air conditioner power supply voltage-stabilizing protection device as claimed in claim 1, is characterized in that, described the first diode, the second diode, and specification is MIC10A10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058331.0A CN103825265B (en) | 2014-02-20 | 2014-02-20 | A kind of coach air conditioner power supply voltage-stabilizing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058331.0A CN103825265B (en) | 2014-02-20 | 2014-02-20 | A kind of coach air conditioner power supply voltage-stabilizing protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103825265A true CN103825265A (en) | 2014-05-28 |
| CN103825265B CN103825265B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410058331.0A Active CN103825265B (en) | 2014-02-20 | 2014-02-20 | A kind of coach air conditioner power supply voltage-stabilizing protection device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720722Y (en) * | 2004-08-18 | 2005-08-24 | 谷正 | Rear electric-appliance control assembly of automobile |
| CN201360159Y (en) * | 2008-12-08 | 2009-12-09 | 南安市柳城高捷图文设计工作室 | Short-circuit-prevention charger |
| CN201363849Y (en) * | 2009-02-08 | 2009-12-16 | 孙勇 | Start control device for generator of air conditioner on passenger car |
| JP2010088205A (en) * | 2008-09-30 | 2010-04-15 | Toyota Motor Corp | Controller of ac motor |
| CN203747405U (en) * | 2014-02-20 | 2014-07-30 | 中通客车控股股份有限公司 | Voltage stabilization protective device of coach air conditioner power supply |
-
2014
- 2014-02-20 CN CN201410058331.0A patent/CN103825265B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720722Y (en) * | 2004-08-18 | 2005-08-24 | 谷正 | Rear electric-appliance control assembly of automobile |
| JP2010088205A (en) * | 2008-09-30 | 2010-04-15 | Toyota Motor Corp | Controller of ac motor |
| CN201360159Y (en) * | 2008-12-08 | 2009-12-09 | 南安市柳城高捷图文设计工作室 | Short-circuit-prevention charger |
| CN201363849Y (en) * | 2009-02-08 | 2009-12-16 | 孙勇 | Start control device for generator of air conditioner on passenger car |
| CN203747405U (en) * | 2014-02-20 | 2014-07-30 | 中通客车控股股份有限公司 | Voltage stabilization protective device of coach air conditioner power supply |
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| Publication number | Publication date |
|---|---|
| CN103825265B (en) | 2016-08-17 |
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Address after: 252000 No.261 Huanghe Road, economic development zone, Liaocheng City, Shandong Province Patentee after: Zhongtong bus Limited by Share Ltd. Address before: 252000 No. 10, Dongchangfu, Liaocheng District, Shandong, Jianshe Road Patentee before: ZHONGTONG BUS HOLDING Co.,Ltd. |