CN104485644A - Intelligent building energy management system - Google Patents
Intelligent building energy management system Download PDFInfo
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- CN104485644A CN104485644A CN201410689297.7A CN201410689297A CN104485644A CN 104485644 A CN104485644 A CN 104485644A CN 201410689297 A CN201410689297 A CN 201410689297A CN 104485644 A CN104485644 A CN 104485644A
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Abstract
The invention discloses an intelligent building energy management system. The system comprises a control device and a power supply module connected to the control device, wherein the power supply module comprises a protection circuit, a transformer and rectifying circuits; the transformer comprises a first secondary side and a second secondary side which are respectively connected to a first rectifying circuit and a second rectifying circuit; the protection circuit comprises a triode T1 and a triode T2; the base of the triode T1 is connected to a voltage division circuit; the emitter of the triode T1 is connected with the emitter of the triode T2; the collector of the triode T1 is connected with the base of the triode T2, and is simultaneously connected with a power input end and the collector of the triode T2 through a resistor R3; the emitter of the triode T2 is connected with the primary side of the transformer; the emitter of the triode T2 is connected with a transient voltage suppressor (TVS); the power input end is connected with the protection circuit, the stability of a power supply is improved and the safety of an internal chip is improved.
Description
Technical field
The present invention relates to building energy management system field, particularly, relate to a kind of supply unit of intelligent building energy 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.
When controlling the change distribution, illumination, water etc. in building, energy management apparatus be used.Energy management apparatus 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 energy management apparatus 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 energy management apparatus, and power input connects protective circuit, improves the stability of power supply, strengthens the fail safe of inside chip.
The present invention's adopted technical scheme that solves the problem is:
A kind of intelligent building energy management system, comprise control device and be connected to the power supply supplying module on control device, described power supply supplying module comprises the protective circuit connected successively, transformer TC and rectification circuit, described transformer TC comprises the first secondary and the second secondary, the first described secondary, second secondary is connected to the first rectification circuit, on second rectification circuit, described protective circuit comprises triode T1 and triode T2, 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 on the former limit of transformer TC, the emitter of described triode T2 is connected with Transient Suppression Diode TVS.
In the present invention, before transforming circuit, protective circuit is connected.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.Subsequent conditioning circuit is protected.When switching tube becomes cut-off from conducting, easily produce spike and induced voltage, Transient Suppression Diode TVS forms clamp circuit; clamper is carried out to spike; when voltage is greater than certain value, Transient Suppression Diode TVS conducting, 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.
As preferably, the resistance R2 that described bleeder circuit comprises resistance R1 and is in series with resistance R1, described resistance R1 and the common port of resistance R2 are connected to the base stage of triode T1.
As preferably, described triode T1 and triode T2 is NPN type triode.
As preferably, the number of turn of first secondary of described transformer TC is greater than the number of turn of the second secondary.
To sum up, the invention has the beneficial effects as follows:
1, the present invention utilizes protective 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 triode T1 and triode T2 to protect overcurrent, and utilizes Transient Suppression Diode TVS 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.
4, circuit structure of the present invention is simple, is easy to realize.
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 energy 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 protective circuit connected successively, transformer TC and rectification circuit, described transformer TC comprises the first secondary and the second secondary, the first described secondary, second secondary is connected to the first rectification circuit, on second rectification circuit, described protective circuit comprises triode T1 and triode T2, 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 on the former limit of transformer TC, the emitter of described triode T2 is connected with Transient Suppression Diode TVS.
Embodiment 2:
A kind of intelligent building energy management system as shown in Figure 1, the resistance R2 that described bleeder circuit comprises resistance R1 and is in series with resistance R1, described resistance R1 and the common port of resistance R2 are connected to the base stage of triode T1.
Described triode T1 and triode T2 is NPN type triode.
The number of turn of first secondary of described transformer TC is greater than the number of turn of the second secondary.
Now disclose one group of embodiment, resistance R1, resistance R2, resistance R3 can adopt following resistance respectively: 50 ohm, 150 ohm, 100 ohm.
As mentioned above, the present invention can be realized preferably.
Claims (4)
1. an intelligent building energy 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 protective circuit connected successively, transformer TC and rectification circuit, described transformer TC comprises the first secondary and the second secondary, the first described secondary, second secondary is connected to the first rectification circuit, on second rectification circuit, described protective circuit comprises triode T1 and triode T2, 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 on the former limit of transformer TC, the emitter of described triode T2 is connected with Transient Suppression Diode TVS.
2. a kind of intelligent building energy management system according to claim 1, is characterized in that: the resistance R2 that described bleeder circuit comprises resistance R1 and is in series with resistance R1, and described resistance R1 and the common port of resistance R2 are connected to the base stage of triode T1.
3. a kind of intelligent building energy management system according to claim 1, is characterized in that: described triode T1 and triode T2 is NPN type triode.
4. a kind of intelligent building energy management system according to claim 1, is characterized in that: the number of turn of first secondary of described transformer TC is greater than the number of turn of the second secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689297.7A CN104485644A (en) | 2014-11-26 | 2014-11-26 | Intelligent building energy management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689297.7A CN104485644A (en) | 2014-11-26 | 2014-11-26 | Intelligent building energy management system |
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| Publication Number | Publication Date |
|---|---|
| CN104485644A true CN104485644A (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410689297.7A Pending CN104485644A (en) | 2014-11-26 | 2014-11-26 | Intelligent building energy management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800124A (en) * | 2016-08-30 | 2018-03-13 | 南京中兴新软件有限责任公司 | energy processing system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854178U (en) * | 2010-10-19 | 2011-06-01 | 江西启源科技发展有限公司 | Practical overcurrent protecting circuit |
| CN202917939U (en) * | 2012-07-09 | 2013-05-01 | 深圳市金威源科技股份有限公司 | Short circuit protection circuit |
| CN103855765A (en) * | 2014-01-26 | 2014-06-11 | 江苏博强新能源科技有限公司 | Battery management system protecting device preventing over-voltage impact |
| CN204258268U (en) * | 2014-11-26 | 2015-04-08 | 四川天启智源科技有限公司 | Building energy management apparatus |
-
2014
- 2014-11-26 CN CN201410689297.7A patent/CN104485644A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854178U (en) * | 2010-10-19 | 2011-06-01 | 江西启源科技发展有限公司 | Practical overcurrent protecting circuit |
| CN202917939U (en) * | 2012-07-09 | 2013-05-01 | 深圳市金威源科技股份有限公司 | Short circuit protection circuit |
| CN103855765A (en) * | 2014-01-26 | 2014-06-11 | 江苏博强新能源科技有限公司 | Battery management system protecting device preventing over-voltage impact |
| CN204258268U (en) * | 2014-11-26 | 2015-04-08 | 四川天启智源科技有限公司 | Building energy management apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800124A (en) * | 2016-08-30 | 2018-03-13 | 南京中兴新软件有限责任公司 | energy processing system and method |
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Application publication date: 20150401 |
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| RJ01 | Rejection of invention patent application after publication |