CN201322882Y - Temperature controller adopting isolated switching power supply for supplying power - Google Patents
Temperature controller adopting isolated switching power supply for supplying power Download PDFInfo
- Publication number
- CN201322882Y CN201322882Y CNU2008201573320U CN200820157332U CN201322882Y CN 201322882 Y CN201322882 Y CN 201322882Y CN U2008201573320 U CNU2008201573320 U CN U2008201573320U CN 200820157332 U CN200820157332 U CN 200820157332U CN 201322882 Y CN201322882 Y CN 201322882Y
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- China
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- power supply
- temperature controller
- type switching
- switching power
- isolation type
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- Control Of Voltage And Current In General (AREA)
- Power Conversion In General (AREA)
Abstract
The utility model relates to control equipment, particularly to a temperature controller. The temperature controller adopting an isolated switching power supply for supplying power comprises a power supply and is characterized in that the power supply is an isolated switching power supply which comprises a power supply input end and a power supply output end, and an isolating transformer is arranged between the power supply input end and the power supply output end. The utility model has the advantages of high precision, high stability, strong environmental adaptation, strong anti-interference ability, small size and the like, so as to improve the precision and stability of corollary equipment thereof and lay the foundation for reducing the size of the corollary equipment thereof.
Description
Technical field
The utility model relates to a kind of opertaing device, relates in particular to a kind of temperature controller.
Background technology
Existing a lot of occasions, and used temperature controller in a lot of equipment, be used for control and regulate temperature.In existing testing equipment, Medical Devices, commercial unit, be widely used.Concrete as being applied in the equipment such as bread bin, constant temperature enclosure, Zymolysis Equipment.
These equipment are higher to the accuracy requirement of temperature, therefore require temperature controller operating accuracy height, reliability height.If the temperature controller operating accuracy does not reach or unstable properties in testing equipment, will have a strong impact on test figure, be follow-up experimental result, and achievements conversion causes and has a strong impact on.
If the temperature controller operating accuracy does not reach or unstable properties in Medical Devices, will have influence on medical effect, even can cause malpractice.
If the temperature controller operating accuracy does not reach or unstable properties in commercial unit, will have a strong impact on product quality, perhaps cause product percent of pass to descend.
The power source performance instability of existing temperature controller, environmental suitability be poor, exist and disturb, and is the major reason that causes the not high or unstable properties of temperature controller precision.
Existing equipment is mostly towards the miniaturization development, so that conserve space is convenient to transportation.The miniaturization of equipment is based upon, on the basis of the miniaturization of accessory.Existing temperature controller can not be accomplished miniaturization, and being influences one of key factor that relevant device can not miniaturization.
The utility model content
The purpose of this utility model is to provide a kind of temperature controller that adopts the isolation type switching power supply power supply, advantage such as have precision height, good stability, environmental suitability is strong, antijamming capability is strong, volume is little, so that improve its precision, the stability of supporting equipment, and lay the foundation by the volume that reduces its supporting equipment.
The technical matters that the utility model solved can realize by the following technical solutions:
Adopt the temperature controller of isolation type switching power supply power supply, comprise power supply, it is characterized in that described power supply is an isolation type switching power supply.
Isolation type switching power supply has that volume is little, good stability, advantage that antijamming capability is strong.After adopting isolation type switching power supply, can increase stability, the antijamming capability of temperature controller effectively, and can reduce volume.
Described isolation type switching power supply comprises power input and power output end, is provided with isolating transformer between power input and the power output end.By isolating transformer the power input and the power output end of isolation type switching power supply are isolated, can avoid the interference of ripple in the electrical network effectively.And then the antijamming capability and the stability of the temperature controller of isolation type switching power supply power supply are adopted in increase.
Described power input is provided with two ends of incoming cables, is provided with Transient Suppression Diode between two ends of incoming cables.By Transient Suppression Diode, there is peak value of pulse in the elimination electrical network, and then guarantees the stability of isolation type switching power supply safety and power supply.
Description of drawings
Fig. 1 is isolation type switching power supply circuit theory diagrams of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
The temperature controller of employing isolation type switching power supply provided by the utility model power supply focuses on solving the power issue of temperature controller.Isolation type switching power supply has that volume is little, good stability, advantage that antijamming capability is strong.After adopting isolation type switching power supply, can increase stability, the antijamming capability of temperature controller effectively, and can reduce volume.
The concrete structure of the isolating switch power that the utility model adopts is referring to Fig. 1.
Isolation type switching power supply comprises power input 1 and power output end 2, and power input 1 is provided with fuse, protective resistance successively, with long unexpected heavy current impact of the time of preventing, guarantees the stability of isolation type switching power supply safety and power supply.Power input 1 has two ends of incoming cables, be respectively end of incoming cables L, end of incoming cables N, be connected to two-way Transient Suppression Diode 5 between end of incoming cables L, the end of incoming cables N,, guarantee the stability of isolation type switching power supply safety and power supply with short unexpected heavy current impact of the time of preventing.
At the input end of power output end 2 by signal wire connection light idol 7, the output terminal of light idol 7 connects power supply control chip 6, forms the Voltage Feedback of isolation.Optocoupler 7 is the optic coupling element of TLP121 model.
As seen from the above technical solution; isolation type switching power supply in the utility model has adopted the kinds of protect means; the temperature controller that has guaranteed to adopt the isolation type switching power supply power supply is under long unexpected heavy current impact of time, or the work that short unexpected heavy current impact of time down can safety and stability.
Adopted isolating transformer 3 and light idol 7 to realize dual isolation.Realized isolation by 3 pairs of power inputs 1 of isolating transformer and power output end 2, effectively eliminated the electrical network ripple power output end 2 output voltage influence.Realize isolation by 7 pairs of power output ends 2 of light idol and power supply control chip 6, effectively guaranteed power supply control chip 6 working stabilities.
As seen from the above technical solution, advantage such as the utlity model has precision height, good stability, environmental suitability is strong, antijamming capability is strong, volume is little, so that improve its precision, the stability of supporting equipment, and lay the foundation by the volume that reduces its supporting equipment.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. adopt the temperature controller of isolation type switching power supply power supply, comprise power supply, it is characterized in that described power supply is an isolation type switching power supply.
2. the temperature controller of employing isolation type switching power supply power supply according to claim 1 is characterized in that described isolation type switching power supply comprises power input and power output end, is provided with isolating transformer between power input and the power output end.
3. the temperature controller of employing isolation type switching power supply power supply according to claim 1 and 2 is characterized in that described power input is provided with two ends of incoming cables, is provided with Transient Suppression Diode between two ends of incoming cables.
4. the temperature controller of employing isolation type switching power supply power supply according to claim 3, it is characterized in that, described isolation type switching power supply is provided with power supply control chip and light idol, and power output end is by the input end of signal wire connection light idol, and the output terminal of light idol connects power supply control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201573320U CN201322882Y (en) | 2008-12-18 | 2008-12-18 | Temperature controller adopting isolated switching power supply for supplying power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201573320U CN201322882Y (en) | 2008-12-18 | 2008-12-18 | Temperature controller adopting isolated switching power supply for supplying power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322882Y true CN201322882Y (en) | 2009-10-07 |
Family
ID=41160259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201573320U Expired - Fee Related CN201322882Y (en) | 2008-12-18 | 2008-12-18 | Temperature controller adopting isolated switching power supply for supplying power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322882Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871368A (en) * | 2015-01-23 | 2016-08-17 | 北京电子工程总体研究所 | Pulse output circuit for RS422 bus |
-
2008
- 2008-12-18 CN CNU2008201573320U patent/CN201322882Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871368A (en) * | 2015-01-23 | 2016-08-17 | 北京电子工程总体研究所 | Pulse output circuit for RS422 bus |
| CN105871368B (en) * | 2015-01-23 | 2018-09-21 | 北京电子工程总体研究所 | A kind of impulse output circuit for RS422 buses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20131218 |