CN201528284U - Switch power supply for low-temperature environment - Google Patents
Switch power supply for low-temperature environment Download PDFInfo
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- CN201528284U CN201528284U CN2009202377628U CN200920237762U CN201528284U CN 201528284 U CN201528284 U CN 201528284U CN 2009202377628 U CN2009202377628 U CN 2009202377628U CN 200920237762 U CN200920237762 U CN 200920237762U CN 201528284 U CN201528284 U CN 201528284U
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- temperature
- power supply
- heater
- electrochemical capacitor
- switching power
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Abstract
A switch power supply for low-temperature environment comprises an electrolytic capacitor (1), a temperature control device composed of a temperature sensor (2), a temperature controller (3), a drive circuit (4) and a heater (5) and arranged on the electrolytic capacitor (1), wherein the temperature signal detected by the temperature sensor (2) is transferred to the temperature controller (3) and the temperature controller (3) controls the switch of the heater (5) according to the temperature of the electrolytic capacitor (1) and the temperature of the electrolytic capacitor (1) is kept above minus 35 DEG C, therefore the switch power supply can normally work. The advantages of the utility model are that: a feedback loop makes the switch power supply conquer the defect of low temperature characteristics and free from the environment temperature limit.
Description
Technical field
The utility model relates to a kind of Switching Power Supply that is used for low temperature environment.
Technical background
Switching Power Supply is to utilize modern power electronics technology, and the time ratio that the control switch pipe turns on and off is kept a kind of power supply of regulated output voltage, and Switching Power Supply generally is made of pulse width modulation (PWM) control IC and MOSFET.Wherein the AC/DC inverter power supply is input as the alternating current of 50/60Hz, and because of must be through rectification, filtering, so the relatively large filtering capacitor of volume be absolutely necessary, and generally uses jumbo electrochemical capacitor.But the capability value of the electrochemical capacitor of Switching Power Supply inside is not all unalterable under all working condition, and it is subjected to Temperature Influence very remarkable.This is because the viscosity of electrolyte can increase along with decrease of temperature, thereby has weakened its transport properties.The conductive capability of electrochemical capacitor has the ionizing power and the viscosity decision of electrolyte.When temperature reduced, electrolyte viscosity increased, thereby ion mobility and conductive capability reduction.When electrolyte was freezing, the very low so that very high resistance of ion locomotivity had influenced its ability to work greatly, has limited the application of the battery of this function admirable at low temperature environment.Studies show that, lost efficacy because of internal liquid undergoes phase transition, thereby cause the Switching Power Supply can't operate as normal when temperature is lower than subzero 35 electric capacity when spending.Therefore want this Switching Power Supply is used in low temperature environment, must overcome the deficiency of its low-temperature characteristics.
The utility model content
The technical problems to be solved in the utility model is, provides a kind of simple in structure, easy operating, safe and reliable, function admirable, the scope of application to be widely used in the Switching Power Supply of low temperature environment.
For addressing the above problem, a kind of Switching Power Supply that is used for low temperature environment of the present utility model, comprising: electrochemical capacitor, temperature sensor, temperature controller, drive circuit, heater.Input power supply input temp controller behind lowering and stabilizing blood pressure; the temperature sensor of being close to electrochemical capacitor shell upper end is connected with the signal input part of temperature controller by drive circuit; the temperature controller output is connected with the heater that is arranged at the electrochemical capacitor bottom by drive circuit; on the outer peripheral face of heater, be provided with protective casing; fully isolate with assurance heater and hazardous medium, and between two contact-making surfaces of heater and electrochemical capacitor, add heat-conducting cream.Temperature sensor sends to temperature controller with the temperature signal of real-time detected electrochemical capacitor, and temperature controller sends driving command according to temperature signal, thus the unlatching of control heater or close.
Described temperature sensor can be digital sensor or thermocouple or bridge-type thermosensitive resistor and circuit.
A kind of Switching Power Supply that is used for low temperature environment of the present utility model, be on the basis of traditional Switching Power Supply, increase by one by temperature sensor, the feedback loop that temperature controller and low power heater are formed, when temperature at subzero 35 degree when following, temperature sensor can detect the temperature of electrochemical capacitor delicately, by drive circuit the temperature signal of detected electrochemical capacitor is sent to temperature controller then, temperature controller sends open command by drive circuit, thereby the control heater unlatching is heated electrochemical capacitor; When temperature is higher than 0 when spending, temperature controller then sends out code, makes heater stop heating.Its main purpose is to keep the temperature of electrochemical capacitor more than subzero 35 degree, promptly keep electrochemical capacitor to be in the temperature range of operate as normal, make it can continuous firing, Switching Power Supply just can overcome the restriction bottleneck of ambient temperature so, can normally use in low temperature environment.
A kind of Switching Power Supply that is used for low temperature environment of the present utility model, main effect are that traditional Switching Power Supply can normally be used in low temperature environment, and simple in structure, practical, safe and reliable, the scope of application is extensive.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the Switching Power Supply of low temperature environment of the present utility model;
Fig. 2 is a kind of systematic schematic diagram that is used for the Switching Power Supply of low temperature environment of the present utility model;
Fig. 3 is a kind of feedback loop block diagram that is used for the Switching Power Supply of low temperature environment of the present utility model;
Fig. 4 is a kind of circuit diagram that is used for the Switching Power Supply of low temperature environment of the present utility model.
The 1-electrochemical capacitor; The 2-temperature sensor; The 3-temperature controller; The 4-drive circuit; The 5-heater
Embodiment
As shown in Figure 1, a kind of Switching Power Supply that is used for low temperature environment mainly comprises: electrochemical capacitor 1, temperature sensor 2, temperature controller 3, drive circuit 4, heater 5.Input power supply input temp controller 3 behind lowering and stabilizing blood pressure; the temperature sensor 2 of being close to electrochemical capacitor 1 shell upper end is connected with the signal input part of temperature controller 3 by drive circuit 4; temperature controller 3 outputs are connected with the heater 5 that is arranged at electrochemical capacitor 1 bottom by drive circuit 4; on the outer peripheral face of heater 5, be provided with protective casing; fully isolate with hazardous medium with assurance heater 5, and between two contact-making surfaces of heater 5 and electrochemical capacitor 1, add heat-conducting cream.
Described temperature sensor 2 can be digital sensor or thermocouple or bridge-type thermosensitive resistor and circuit.
When the temperature of electrochemical capacitor 1 when subzero 35 degree are following, temperature sensor 2 can detect the temperature of electrochemical capacitor 1 delicately, by drive circuit 4 temperature signal of detected electrochemical capacitor 1 is sent to temperature controller 3 then, temperature controller 3 sends open command by drive circuit 4, thereby control heater 5 is opened electrochemical capacitor 1 heating; When the temperature of electrochemical capacitor 1 is higher than 0 when spending, 3 of temperature controllers send out code, make heater 5 stop heating.When the temperature of electrochemical capacitor 1 is lower than subzero 35 again when spending, temperature sensor 2 sends temperature signal to temperature controller 3 again, and then heater 5, and heater 5 begins again electrochemical capacitor 1 heating is is so gone round and begun again periodic duty.Like this, Switching Power Supply just can be worked in low temperature environment, has overcome the restriction of low temperature.
Claims (5)
1. Switching Power Supply that is used for low temperature environment, comprising electrochemical capacitor (1), it is characterized in that: on described electrochemical capacitor (1), be provided with a temperature control equipment of forming by temperature sensor (2), temperature controller (3), drive circuit (4) and heater (5), by temperature sensor (2) detected temperature signal is passed to temperature controller (3), temperature controller (3) comes the unlatching of control heater (5) according to the temperature of electrochemical capacitor (1) or cuts out.
2. a kind of Switching Power Supply that is used for low temperature environment according to claim 1 is characterized in that: described temperature sensor (2) is placed in the top of electrochemical capacitor (1) shell.
3. a kind of Switching Power Supply that is used for low temperature environment according to claim 1 and 2 is characterized in that: described temperature sensor (2) can be digital sensor or thermocouple or bridge-type thermosensitive resistor and circuit.
4. a kind of Switching Power Supply that is used for low temperature environment according to claim 1 is characterized in that: described heater (5) is fixed in the bottom of electrochemical capacitor (1) inner chamber, adds heat-conducting cream between two contact-making surfaces.
5. a kind of Switching Power Supply that is used for low temperature environment according to claim 4 is characterized in that: be provided with protective casing on the outer peripheral face of described heater (5), fully isolate to guarantee heater (5) and hazardous medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202377628U CN201528284U (en) | 2009-10-23 | 2009-10-23 | Switch power supply for low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202377628U CN201528284U (en) | 2009-10-23 | 2009-10-23 | Switch power supply for low-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201528284U true CN201528284U (en) | 2010-07-14 |
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ID=42519566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202377628U Expired - Lifetime CN201528284U (en) | 2009-10-23 | 2009-10-23 | Switch power supply for low-temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201528284U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176377A (en) * | 2011-01-31 | 2011-09-07 | 李纯廉 | Method for controlling temperature of electrolytic capacitor and temperature-controllable electrolytic capacitor using same |
| CN105281722A (en) * | 2014-06-12 | 2016-01-27 | 大陆汽车有限公司 | Device having a circuit board and an electronic circuit with an electrolytic capacitor arranged on the circuit board |
| CN107070190A (en) * | 2017-04-26 | 2017-08-18 | 华为技术有限公司 | A kind of supply unit and its electric capacity method for heating and controlling |
| AT15439U1 (en) * | 2016-05-20 | 2017-09-15 | Tridonic Gmbh & Co Kg | Electric ballast with extreme temperature protection |
-
2009
- 2009-10-23 CN CN2009202377628U patent/CN201528284U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176377A (en) * | 2011-01-31 | 2011-09-07 | 李纯廉 | Method for controlling temperature of electrolytic capacitor and temperature-controllable electrolytic capacitor using same |
| CN105281722A (en) * | 2014-06-12 | 2016-01-27 | 大陆汽车有限公司 | Device having a circuit board and an electronic circuit with an electrolytic capacitor arranged on the circuit board |
| CN105281722B (en) * | 2014-06-12 | 2021-09-07 | 大陆汽车有限公司 | Device having a circuit board and an electronic circuit arranged thereon |
| AT15439U1 (en) * | 2016-05-20 | 2017-09-15 | Tridonic Gmbh & Co Kg | Electric ballast with extreme temperature protection |
| CN107070190A (en) * | 2017-04-26 | 2017-08-18 | 华为技术有限公司 | A kind of supply unit and its electric capacity method for heating and controlling |
| CN107070190B (en) * | 2017-04-26 | 2020-06-09 | 华为技术有限公司 | Power supply device and capacitance heating control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan Yiyuan Photoelectric Technology Co., Ltd. Assignor: Guangdong Shaoxin Opto-electrical Technology Co., Ltd. Contract record no.: 2011430000048 Denomination of utility model: Switch power supply for low-temperature environment Granted publication date: 20100714 License type: Exclusive License Record date: 20110421 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100714 |
|
| CX01 | Expiry of patent term |