CN203278633U - Battery filter circuit in environment temperature and humidity monitoring system in transformer substation - Google Patents
Battery filter circuit in environment temperature and humidity monitoring system in transformer substation Download PDFInfo
- Publication number
- CN203278633U CN203278633U CN 201320343241 CN201320343241U CN203278633U CN 203278633 U CN203278633 U CN 203278633U CN 201320343241 CN201320343241 CN 201320343241 CN 201320343241 U CN201320343241 U CN 201320343241U CN 203278633 U CN203278633 U CN 203278633U
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- battery
- resistance
- filter circuit
- inductance
- electric capacity
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Abstract
The utility model discloses a battery filter circuit in an environment temperature and humidity monitoring system in a transformer substation. The battery filter circuit includes a battery, a first resistor, a first capacitor, a second capacitor and a first inductor. One terminal of the first resistor is connected with an anode of the battery and the other terminal of the first resistor is connected with one terminal of the first inductor; the other terminal of the first inductor is connected with a voltage output line; one terminal of the first capacitor and one terminal of the second capacitor are connected with a line between the first resistor and the first inductor; and the other terminal of the first capacitor and the other terminal of the second capacitor are grounded. According to the utility model, when the battery supplies power, the first capacitor and the second capacitor form the filter circuit for filtering the position ripple, so that the effect of the ripple on the environment temperature and humidity monitoring system is reduced.
Description
Technical field
The utility model relates to transformer station's supplementary controlled system field, the specifically filter circuit of battery in the substation humiture observation system.
Background technology
Along with industrial expansion, all trades and professions improve day by day to the power supply reliability of electric power system and the requirement of stability, transformer station is as the core link of electric power system, it is used for collecting power supply, lifting voltage and distributes electric energy, undertaking high-low pressure conversion and the power supply task of region, therefore, the safe operation of transformer station is most important to electric power system.In order to guarantee the reliable and stable operation of transformer station, existing transformer station generally is equipped with the ambient temperature and humidity monitoring system, wherein, and the controller of the ambient temperature and humidity monitoring system microcontroller implementation based on ARM commonly used, and microcontroller is powered by battery.There is ripple in the supply voltage exported when the microcontroller of ambient temperature and humidity monitoring system is powered of battery now, and then it is not steady to cause inputting the supply power voltage of microcontroller, and this has directly affected the accuracy of ambient temperature and humidity monitoring system monitoring.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and the filter circuit of battery in a kind of substation humiture observation system that can reduce the power supply output ripple is provided.
The purpose of this utility model is achieved through the following technical solutions: the filter circuit of battery in the substation humiture observation system, comprise battery, the first resistance, the first electric capacity, the second electric capacity and the first inductance, described the first resistance two ends respectively with anode be connected inductance and be connected, the other end that the first inductance connects the first resistance terminal relatively is connected with voltage output line, described the first electric capacity, the second electric capacity all have an end to be connected on circuit between the first resistance and the first inductance, and the equal ground connection of both other ends.Wherein, the first inductance is set its signal for certain frequency range and is had higher impedance during fabrication, and its high-frequency noise and spike that is used for suppressing on voltage output line disturbs, and also has the ability that absorbs electrostatic pulse.
The filter circuit of battery in the substation humiture observation system also comprises the transient voltage twin zener dioder, and described transient voltage twin zener dioder one end is connected on circuit between the first resistance and the first inductance, its other end ground connection.Wherein, the transient voltage twin zener dioder can be in utmost point conducting over the ground in the short time; thereby reach the purpose of electrostatic interference being introduced ground; the protection battery; transient voltage twin zener dioder effectively guard system ESD disturbs impact to battery, also can protect conversely the ESD that is imported by battery and disturb impact to microcontroller.
The capacity of described the first electric capacity is 100uF, and the capacity of described the second electric capacity is 0.1uF.So, when the utility model is used, the first electric capacity is used for High frequency filter, and the second electric capacity is used for low frequency filtering.
Be connected with thermo-sensitive resistor between the both positive and negative polarity of described battery.Wherein, thermo-sensitive resistor is responsive to variation of ambient temperature, and its resistance changes with the variation of ambient temperature, can detect by the resistance that detects thermo-sensitive resistor the variation of battery temperature when the utility model is used.
The filter circuit of battery in the substation humiture observation system, also comprise the second resistance and the first light-emitting diode, described the second resistance one end is connected on circuit between the first resistance and the first inductance, its other end is connected with the first light-emitting diode is anodal, the minus earth of described the first light-emitting diode.The utility model is when powered battery, and the first lumination of light emitting diode can be indicated power supply state.
Compared with prior art, the utlity model has following beneficial effect: the utility model is connected with the filter circuit that is made of the first electric capacity and the second electric capacity on the circuit between battery and the first inductance, when battery is microprocessor power supply, filter can carry out filtering to the part ripple of battery output, thereby reduces ripple to the impact of microcontroller work.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
In accompanying drawing, the corresponding name of Reference numeral is called: 1, battery, 2, voltage output line, R1, the first resistance, R2, the second resistance, C1, the first electric capacity, C2, the second electric capacity, L1, the first inductance, D1, transient voltage twin zener dioder, LED1, the first light-emitting diode.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the filter circuit of battery in the substation humiture observation system, comprise battery 1, the first resistance R 1, the first capacitor C 1, the second capacitor C 2, transient voltage twin zener dioder D1, thermo-sensitive resistor and the first inductance L 1, wherein, the first resistance R 1 two ends respectively with battery 1 anodal be connected inductance L 1 and be connected, battery 1 minus earth, thermo-sensitive resistor two ends are connected (thermo-sensitive resistor does not draw in the accompanying drawings) with the both positive and negative polarity of battery respectively.The capacity of the first capacitor C 1 is 100uF, and the capacity of the second capacitor C 2 is 0.1uF.The other end that the first inductance L 1 connects the first resistance R 1 end relatively is connected with voltage output line 2, the other end that voltage output line 2 connects the first resistance R 1 end relatively is connected with the microcontroller of ambient temperature and humidity control system, the first capacitor C 1, the second capacitor C 2 and transient voltage twin zener dioder D1 three all have an end to be connected on circuit between the first resistance R 1 and the first inductance L 1, and the equal ground connection of three's the other end.
The present embodiment also is provided with the indicating circuit of battery 1 power supply state, this indicating circuit comprises the second resistance R 2 and the first LED 1, wherein, the second resistance R 2 one ends are connected on circuit between the first resistance R 1 and the first inductance L 1, its other end is connected with the first LED 1 positive pole, the minus earth of the first LED 1.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not breaking away from other execution modes that draw under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (5)
1. the filter circuit of battery in the substation humiture observation system, it is characterized in that: comprise battery (1), the first resistance (R1), the first electric capacity (C1), the second electric capacity (C2) and the first inductance (L1), described the first resistance (R1) two ends respectively with battery (1) anodal be connected inductance (L1) and be connected, the other end that the first inductance (L1) connects the first resistance (R1) end relatively is connected with voltage output line (2), described the first electric capacity (C1), the second electric capacity (C2) all has an end to be connected on circuit between the first resistance (R1) and the first inductance (L1), and the equal ground connection of both other ends.
2. the filter circuit of battery in substation humiture observation system according to claim 1, it is characterized in that: also comprise transient voltage twin zener dioder (D1), described transient voltage twin zener dioder (D1) end is connected on circuit between the first resistance (R1) and the first inductance (L1), its other end ground connection.
3. the filter circuit of battery in substation humiture observation system according to claim 1, it is characterized in that: the capacity of described the first electric capacity (C1) is 100uF, the capacity of described the second electric capacity (C2) is 0.1uF.
4. the filter circuit of battery in substation humiture observation system according to claim 1, is characterized in that: be connected with thermo-sensitive resistor between the both positive and negative polarity of described battery (1).
5. the filter circuit of battery in the described substation humiture observation system of any one according to claim 1～4, it is characterized in that: also comprise the second resistance (R2) and the first light-emitting diode (LED1), described the second resistance (R2) end is connected on circuit between the first resistance (R1) and the first inductance (L1), its other end is connected with the first light-emitting diode (LED1) is anodal, the minus earth of described the first light-emitting diode (LED1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343241 CN203278633U (en) | 2013-06-17 | 2013-06-17 | Battery filter circuit in environment temperature and humidity monitoring system in transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343241 CN203278633U (en) | 2013-06-17 | 2013-06-17 | Battery filter circuit in environment temperature and humidity monitoring system in transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278633U true CN203278633U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320343241 Expired - Fee Related CN203278633U (en) | 2013-06-17 | 2013-06-17 | Battery filter circuit in environment temperature and humidity monitoring system in transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280958A (en) * | 2013-06-17 | 2013-09-04 | 成都荣耀科技有限公司 | Filtration module of battery used in transformer substation environment temperature and humidity monitoring system |
-
2013
- 2013-06-17 CN CN 201320343241 patent/CN203278633U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280958A (en) * | 2013-06-17 | 2013-09-04 | 成都荣耀科技有限公司 | Filtration module of battery used in transformer substation environment temperature and humidity monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |