CN202971231U - Power equipment for supplying power to fan - Google Patents
Power equipment for supplying power to fan Download PDFInfo
- Publication number
- CN202971231U CN202971231U CN 201220562004 CN201220562004U CN202971231U CN 202971231 U CN202971231 U CN 202971231U CN 201220562004 CN201220562004 CN 201220562004 CN 201220562004 U CN201220562004 U CN 201220562004U CN 202971231 U CN202971231 U CN 202971231U
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- Prior art keywords
- fan
- voltage
- power
- comparator
- transformer
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Abstract
The utility model relates to power equipment for supplying power to a fan. The power equipment for supplying power to the fan comprises a mains power grid and the fan, wherein a transformer is positioned between the mains power grid and the fan; an executing mechanism consisting of a plurality of relays which are connected in parallel is serially connected between the transformer and the fan; a voltage acquisition unit for acquiring a voltage value is connected to a circuit between the executing mechanism and the fan; a comparator set with reference voltage is connected to the voltage acquisition unit; the comparator is used for comparing input voltage of the fan with the reference voltage thereof to generate a voltage difference signal; a regulator is positioned between the comparator and the executing mechanism; and the regulator selectively closes one of the relays inside the executing mechanism according to the voltage difference signal. The power equipment for supplying power to the fan can ensure relative constancy of the power supplying voltage of the fan, effectively controls influence of voltage fluctuation on the power of the fan, prolongs the service life of the fan and a semiconductor product and saves power.
Description
Technical field
The utility model relates to a kind of power equipment for the fan power supply, belongs to the electric power control field.
Background technique
Present electronic product semiconductor products such as (as:) computers is when operation, in cabinet, the power of electronic parts and components consumption has a big chunk to come out in the mode of heat, cause the rising of cabinet inside temperature, and the temperature of making environment on electronic product raises and also can improve the temperature of its cabinet inside, cause the reduction of electronic parts and components electrical quality, affect the working life of electronic product.Be head it off, the electronic product cabinet inside disposes fan system usually, comes cabinet inside is dispelled the heat to force cold mode.
Semiconductor product is very responsive to temperature at present, some large-power semiconductor equipment requirements are in the situation that the three phase network voltage functuation is very large, still can constant power output, like this heat radiation just there has been very high requirement, the air output of ac fan in the market is quite responsive to the fluctuation of voltage, keep the power of fan, will make the fan power supply voltage relatively stable, when voltage ripple of power network, just need to carry out certain compensation to the voltage given of fan, make and establish fan work under the state of rated power.
Summary of the invention
The purpose of this utility model is to provide a kind of power equipment for the fan power supply, this power equipment that is used for the fan power supply is in the situation that the three phase network voltage functuation is very large, can guarantee the relatively stable and permanent power input of fan power supply voltage, effectively controlled the impact of voltage functuation on fan power, fan and semiconductor product working life had both been extended, also the conservation of power energy.
For achieving the above object, the technical solution adopted in the utility model is: a kind of power equipment for the fan power supply, comprise utility grid and fan, and a transformer is between described utility grid and fan; The actuator that between described transformer and fan, series connection one is comprised of several relays that are connected in parallel; One voltage acquisition unit that is used for the collection magnitude of voltage is connected to the circuit between described actuator and fan, this voltage acquisition unit is used for gathering the input voltage value of described fan, one comparator that is provided with reference voltage is connected to described voltage acquisition unit, described comparator is used for input voltage and its reference voltage of fan are relatively produced the voltage difference signal, one regulator is between described comparator and actuator, and this regulator is selected the closure of a relay in described actuator according to the voltage difference signal.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The utility model is used for the power equipment of fan power supply, it is in the situation that the three phase network voltage functuation is very large, can guarantee the relatively stable and permanent power input of fan power supply voltage, effectively controlled the impact of voltage functuation on fan power, fan and semiconductor product working life had both been extended, also the conservation of power energy.
Description of drawings
Accompanying drawing 1 is used for the power equipment electrical schematic diagram of fan power supply for the utility model;
Accompanying drawing 2 is the utility model transformer device structure schematic diagram;
Accompanying drawing 3 is the utility model actuator structural representation;
Accompanying drawing 4 is the utility model voltage feedback section electrical structure schematic diagram;
Accompanying drawing 5 is used for the power equipment workflow diagram of fan power supply for the utility model.
In above accompanying drawing: 1, utility grid; 2, fan; 3, transformer; 4, relay; 5, actuator; 6, voltage acquisition unit; 7, comparator; 8, regulator.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of power equipment for the fan power supply as shown in drawings, comprises that utility grid 1 and fan 2, one transformers 3 are between described utility grid 1 and fan 2; The actuator 5 that between described transformer 3 and fan 2, series connection one is comprised of several relays that are connected in parallel 4; One voltage acquisition unit 6 that is used for the collection magnitude of voltage is connected to the circuit between described actuator 5 and fan 2, this voltage acquisition unit 6 is used for gathering the input voltage value of described fan 2, one comparator 7 that is provided with reference voltage is connected to described voltage acquisition unit 6, described comparator 7 is used for input voltage and its reference voltage of fan 2 are relatively produced the voltage difference signal, one regulator 8 is between described comparator 7 and actuator 5, and this regulator 8 is selected the closure of a relay 4 in described actuator 5 according to the voltage difference signal.
The foregoing working procedure is as follows, and transformer in Fig. 2 has increased by one road voltage sample and actuator in original charger design.These partial actions: transformer: transformer originally is the transformer of 380 changes 220.The present transformer of design is to be multiplied by a coefficient X on the voltage basis that will originally export on original basis, and the scope of X is between 0.8 to 1.2.
Actuator: be comprised of some relays, these relays only have one tunnel output at synchronization.
Sampled voltage: referring to the transformer output voltage, is also the feedback voltage of this system.
Design of transformer: transformer input end input voltage Ui obtains voltage U o at output terminal; Be in the situation that input voltage is constant now, output voltage can have a regulation range, makes input voltage between 0.85 ~ 1.15 in wave process, and output voltage makes fan work in more stable scope by corresponding adjusting.The design adjustable range of output voltage is 0.80 ~ 1.20 at present, and is to have level to regulate.
Actuator: consisted of by a group relay, be mainly used to switch to that end of transformer, the existence of these relays is arranged just, just make the adjusting of the output voltage possibility that becomes.
Control principle: at first according to the optimum operating voltage of electric fan, determine a wave range, in this variations in the voltage, think that electric fan is operated in perfect condition, surpass this scope and just need to regulate.The input voltage of fan is sampled in the presence of feedback voltage, with itself and given voltage ratio, give regulator with its difference, regulator is according to the algorithm of self, judging needs closure by that road relay (annotate: synchronization only has No. one relay can be closed, otherwise can cause short circuit), give actuator with its result, by actuator's executable operations.
When adopting above-mentioned power equipment for fan power supply, it is in the situation that the three phase network voltage functuation is very large, can guarantee the relatively stable and permanent power input of fan power supply voltage, effectively controlled the impact of voltage functuation on fan power, fan and semiconductor product working life had both been extended, also the conservation of power energy.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (1)
1. a power equipment that is used for the fan power supply, comprise utility grid (1) and fan (2), and a transformer (3) is positioned between described utility grid (1) and fan (2), it is characterized in that: the actuator (5) that between described transformer (3) and fan (2), series connection one is comprised of several relays that are connected in parallel (4), one voltage acquisition unit (6) that is used for the collection magnitude of voltage is connected to the circuit between described actuator (5) and fan (2), this voltage acquisition unit (6) is used for gathering the input voltage value of described fan (2), one comparator (7) that is provided with reference voltage is connected to described voltage acquisition unit (6), described comparator (7) is used for input voltage and its reference voltage of fan (2) are relatively produced the voltage difference signal, one regulator (8) is positioned between described comparator (7) and actuator (5), this regulator (8) is selected the closure of a relay (4) in described actuator (5) according to the voltage difference signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220562004 CN202971231U (en) | 2012-10-30 | 2012-10-30 | Power equipment for supplying power to fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220562004 CN202971231U (en) | 2012-10-30 | 2012-10-30 | Power equipment for supplying power to fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971231U true CN202971231U (en) | 2013-06-05 |
Family
ID=48512315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220562004 Expired - Lifetime CN202971231U (en) | 2012-10-30 | 2012-10-30 | Power equipment for supplying power to fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054924A (en) * | 2017-12-13 | 2018-05-18 | 中冶南方工程技术有限公司 | A kind of small-power three-phase alternating voltage self-checking device |
-
2012
- 2012-10-30 CN CN 201220562004 patent/CN202971231U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054924A (en) * | 2017-12-13 | 2018-05-18 | 中冶南方工程技术有限公司 | A kind of small-power three-phase alternating voltage self-checking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |