CN104467463A - Intelligent building management system - Google Patents
Intelligent building management system Download PDFInfo
- Publication number
- CN104467463A CN104467463A CN201410703456.4A CN201410703456A CN104467463A CN 104467463 A CN104467463 A CN 104467463A CN 201410703456 A CN201410703456 A CN 201410703456A CN 104467463 A CN104467463 A CN 104467463A
- Authority
- CN
- China
- Prior art keywords
- circuit
- triode
- resistance
- intelligent building
- power supply
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses an intelligent building management system which comprises a control device and a power supply module connected to the control device. The power supply module comprises an over-current protection circuit, a clamping circuit, a transformer TC and a shaping circuit which are sequentially connected. The clamping circuit comprises a transient voltage suppressor (TVS). The transformer TC comprises a first secondary edge and a second secondary edge. The first secondary edge and the second secondary edge are connected to a first rectifying circuit and a second rectifying circuit respectively. A resistance-capacitance absorption circuit is connected to the output end of the over-current protection circuit. The over-current protection circuit and the clamping circuit are connected to the power supply input end so that over-voltage protection and over-current protection can be achieved. The stability of a power supply is enhanced, and the safety of an inner chip and a subsequent circuit is improved.
Description
Technical field
The present invention relates to architectural control device field, more particularly, relate to a kind of intelligent building management system.
Background technology
Modern building, in building, various electromechanical equipment is many, in order to manage concentratedly various electromechanical equipment and monitor, adopts intelligent building control device.Intelligent building control device mainly comprises the control to air-conditioner wind unit, blowing and discharging fan, catch pit and draining pump, elevator, change distribution, illumination etc.Within the scope of whole building, electromechanical equipment managed concentratedly by the time of presetting in intelligent building control device and controls, under the prerequisite meeting control overflow, realize comprehensively energy-conservation, the work of regular maintenance is replaced with the controlling functions of controller, reduce workload, the out of control or device damage of the equipment reducing to cause due to the work mistake of attendant.
Intelligent building control device will realize controlling functions, its inside is integrated with a lot of chip, the operation of its chip needs outside to provide power supply, but, namely the power supply of existing intelligent building control device is directly supplied to inside chip and uses after transformation shaping, due to interference or other factors of external signal, make the poor stability of power supply, to cause damage to intelligent building control device inside chip.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of intelligent building management system; power input connects circuit overcurrent protection and clamp circuit; overvoltage and overcurrent are protected, strengthens the stability of power supply, improve the fail safe of inside chip and subsequent conditioning circuit.
The present invention's adopted technical scheme that solves the problem is:
A kind of intelligent building management system; comprise control device and be connected to the power supply supplying module on control device; described power supply supplying module comprises the circuit overcurrent protection, clamp circuit, transformer TC and the shaping circuit that connect successively; described clamp circuit comprises Transient Suppression Diode TVS; described transformer TC comprises the first secondary and the second secondary; the first described secondary, the second secondary are connected on the first rectification circuit, the second rectification circuit, and the output of described circuit overcurrent protection is connected with resistance capaciting absorpting circuit.
In the present invention, before transformer TC, circuit overcurrent protection and clamp circuit is connected.Overcurrent protection is protected over-current condition in input current.Circuit overcurrent protection adopts switching tube and other device to form mostly; when switching tube becomes cut-off from conducting; easy generation spike and induced voltage; Transient Suppression Diode TVS forms clamp circuit; when voltage is greater than certain value; Transient Suppression Diode TVS conducting, carries out clamper to spike, protects subsequent conditioning circuit.The fast response time of Transient Suppression Diode TVS, transient state high energy pulse can be born, the reaction speed of clamper can be strengthened.Utilize protective circuit to protect power supply, enhance the stability of power supply, avoid overcurrent to destroy the impact of subsequent conditioning circuit, improve the fail safe of inside chip.Transformer TC utilize two secondary by voltage step-down be two magnitudes of voltage not wait voltage respectively after rectifier circuit rectifies for late-class circuit, meet different chip difference reference voltage demand.Resistance capaciting absorpting circuit is utilized to absorb spike, the reliability of intensifier circuit and fail safe.
As preferably, described circuit overcurrent protection comprises triode T1 and triode T2, the base stage of described triode T1 is connected with bleeder circuit, the base stage of described triode T1 is connected on bleeder circuit, the emitter of described triode T1 is connected with the emitter of triode T2, the collector electrode of described triode T1 is connected with the base stage of triode T2 and is connected with the collector electrode of power input with triode T2 by resistance R3 simultaneously, described bleeder circuit is connected on power input, the emitter of described triode T2 is connected with Transient Suppression Diode TVS with the former limit of transformer TC simultaneously.Bleeder circuit, triode T1 and triode T2 and resistance R3 form circuit overcurrent protection, when circuit normally works, the dividing potential drop of bleeder circuit makes the base potential of triode T1 higher than the current potential of emitter, emitter bears reverse voltage, triode T1 is in cut-off state, does not affect subsequent conditioning circuit; When short circuit, output voltage is 0, and the emitter of triode T1 is equivalent to ground connection, then triode T1 is in the state of saturation conduction, is namely equivalent to short circuit, thus makes triode T2 base stage and emitter close to short circuit, is in cut-off state, realizes overcurrent protection.
Further, described bleeder circuit comprises the resistance R1 and resistance R2 that are in series.
As preferably, described resistance capaciting absorpting circuit comprises the resistance R4 and electric capacity C that are in series.
To sum up, the invention has the beneficial effects as follows:
1, the present invention utilizes circuit overcurrent protection and resistance capaciting absorpting circuit to protect power supply, strengthens the stability of power supply, avoids external disturbance or overcurrent to the destruction of subsequent conditioning circuit or chip, improves the fail safe of inside chip.
2, the present invention utilizes clamp circuit to carry out clamper to spike, improves the fail safe of circuit.
3, the present invention utilize two of transformer secondary voltage is reduced to the unequal voltage of magnitude of voltage respectively after rectifier circuit rectifies for late-class circuit, meet the demand of the different reference voltage of different chip, improve the stability that chip runs.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of intelligent building management system as shown in Figure 1; comprise control device and be connected to the power supply supplying module on control device; described power supply supplying module comprises the circuit overcurrent protection, clamp circuit, transformer TC and the shaping circuit that connect successively; described clamp circuit comprises Transient Suppression Diode TVS; described transformer TC comprises the first secondary and the second secondary; the first described secondary, the second secondary are connected on the first rectification circuit, the second rectification circuit, and the output of described circuit overcurrent protection is connected with resistance capaciting absorpting circuit.Current foldback circuit can adopt mature multiple circuit form to realize.
Embodiment 2:
A kind of intelligent building management system as shown in Figure 1, the present embodiment has done refinement on the basis of above-described embodiment 1, namely described circuit overcurrent protection comprises triode T1 and triode T2, the base stage of described triode T1 is connected with bleeder circuit, the base stage of described triode T1 is connected on bleeder circuit, the emitter of described triode T1 is connected with the emitter of triode T2, the collector electrode of described triode T1 is connected with the base stage of triode T2 and is connected with the collector electrode of power input with triode T2 by resistance R3 simultaneously, described bleeder circuit is connected on power input, the emitter of described triode T2 is connected with Transient Suppression Diode TVS with the former limit of transformer TC simultaneously.
Described bleeder circuit comprises the resistance R1 and resistance R2 that are in series.
Described resistance capaciting absorpting circuit comprises the resistance R4 and electric capacity C that are in series.
Now disclose one group of embodiment, resistance R1, resistance R2, resistance R3, resistance R4 can adopt following resistance respectively: 50 ohm, 150 ohm, 100 ohm, 100 ohm; Electric capacity C can adopt 10 pico farads; Triode T1 and triode T2 all adopts NPN type.
As mentioned above, the present invention can be realized preferably.
Claims (4)
1. intelligent building management system; comprise control device and be connected to the power supply supplying module on control device; it is characterized in that: described power supply supplying module comprises the circuit overcurrent protection, clamp circuit, transformer TC and the shaping circuit that connect successively; described clamp circuit comprises Transient Suppression Diode TVS; described transformer TC comprises the first secondary and the second secondary; the first described secondary, the second secondary are connected on the first rectification circuit, the second rectification circuit, and the output of described circuit overcurrent protection is connected with resistance capaciting absorpting circuit.
2. intelligent building management system according to claim 1, it is characterized in that: described circuit overcurrent protection comprises triode T1 and triode T2, the base stage of described triode T1 is connected with bleeder circuit, the base stage of described triode T1 is connected on bleeder circuit, the emitter of described triode T1 is connected with the emitter of triode T2, the collector electrode of described triode T1 is connected with the base stage of triode T2 and is connected with the collector electrode of power input with triode T2 by resistance R3 simultaneously, described bleeder circuit is connected on power input, the emitter of described triode T2 is connected with Transient Suppression Diode TVS with the former limit of transformer TC simultaneously.
3. intelligent building management system according to claim 2, is characterized in that: described bleeder circuit comprises the resistance R1 and resistance R2 that are in series.
4. intelligent building management system according to claim 1, is characterized in that: described resistance capaciting absorpting circuit comprises the resistance R4 and electric capacity C that are in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703456.4A CN104467463A (en) | 2014-11-26 | 2014-11-26 | Intelligent building management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703456.4A CN104467463A (en) | 2014-11-26 | 2014-11-26 | Intelligent building management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104467463A true CN104467463A (en) | 2015-03-25 |
Family
ID=52912981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410703456.4A Pending CN104467463A (en) | 2014-11-26 | 2014-11-26 | Intelligent building management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104467463A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2909687Y (en) * | 2006-04-29 | 2007-06-06 | 李和发 | Power supply converter of multifunction DC low tension electric blanket |
| CN202524313U (en) * | 2011-12-17 | 2012-11-07 | 西安恒飞电子科技有限公司 | Communication power supply module with input over-current protection |
| CN203632552U (en) * | 2013-12-30 | 2014-06-04 | 黑龙江大学 | Portable intelligent monitoring power supply |
| CN204258649U (en) * | 2014-11-26 | 2015-04-08 | 四川天启智源科技有限公司 | A kind of intelligent building management device |
-
2014
- 2014-11-26 CN CN201410703456.4A patent/CN104467463A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2909687Y (en) * | 2006-04-29 | 2007-06-06 | 李和发 | Power supply converter of multifunction DC low tension electric blanket |
| CN202524313U (en) * | 2011-12-17 | 2012-11-07 | 西安恒飞电子科技有限公司 | Communication power supply module with input over-current protection |
| CN203632552U (en) * | 2013-12-30 | 2014-06-04 | 黑龙江大学 | Portable intelligent monitoring power supply |
| CN204258649U (en) * | 2014-11-26 | 2015-04-08 | 四川天启智源科技有限公司 | A kind of intelligent building management device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |