CN202167978U - Over-temperature protection switch power supply transformer - Google Patents
Over-temperature protection switch power supply transformer Download PDFInfo
- Publication number
- CN202167978U CN202167978U CN 201120255811 CN201120255811U CN202167978U CN 202167978 U CN202167978 U CN 202167978U CN 201120255811 CN201120255811 CN 201120255811 CN 201120255811 U CN201120255811 U CN 201120255811U CN 202167978 U CN202167978 U CN 202167978U
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- Prior art keywords
- temperature
- power supply
- transformer
- control
- magnetic core
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Abstract
The utility model discloses an over-temperature protection switch power supply transformer, which comprises an upper magnetic core, a lower magnetic core, a printed circuit board and a transformer pin. The upper magnetic core and the lower magnetic core form a hollow annular structure, and the printed circuit board is arranged between the upper magnetic core and the lower magnetic core. The over-temperature protection switch power supply transformer further comprises a temperature control integrated circuit (IC) for detecting transformer temperature and outputting temperature of control signals, and the temperature control IC is arranged on the surface of the printed circuit board. The transformer pin is provided with a control pin for outputting the control signals and a power supply pin for supplying power to the temperature control IC. The output end of the temperature signals of the temperature control IC is connected with the control pin, and a power supply input end of the temperature control IC is connected with the power supply pin. The over-temperature protection switch power supply transformer can detect the temperature inside the switch transformer to control on and off of the switch power supply.
Description
Technical field
The utility model relates to a kind of transformer, particularly a kind of switching mode power supply transformer of overheat protector.
Background technology
Switching Power Supply comprises the power-supply controller of electric and the switching mode power supply transformer of Switching Power Supply, and switch power controller is used for the break-make of control switching; In the Switching Power Supply of increasingly high power density, switching mode power supply transformer is one of the highest device that generates heat in the Switching Power Supply, because the seal of switching mode power supply transformer structure causes its inner actual temperature rise far above other regional temperature rises of external power source.
Usually Switching Power Supply is used in the airtight environment of high temperature or in the excessive environment of load short circuits or load the time; Be easy to because of there not being the monitoring of transformer internal temperature; The internal temperature of making transformer surpasses its limiting value or magnetic saturation, so that the miscellaneous part of transformer or Switching Power Supply damages.
The utility model content
The purpose of the utility model is to provide a kind of switching mode power supply transformer of overheat protector, but the temperature in the sense switch transformer is with the break-make of control switching.
The purpose of the utility model realizes through following technical scheme: a kind of switching mode power supply transformer of overheat protector; Comprise magnetic core, following magnetic core, printed circuit board (PCB) and transformer pin; Said upper and lower magnetic core constitutes the loop configuration of hollow; Said printed circuit board (PCB) is characterized in that between upper and lower magnetic core: also comprise being used to the temperature control IC that detects the transformer temperature and export control signal, said temperature control IC is located at the surface of printed circuit board (PCB); Be provided with the control pin and the power pins that is used for to the power supply of temperature control IC that are used to export control signal in the said transformer pin; The temperature signal output of temperature control IC is connected with the control pin; The power input of temperature control IC connects power pins; The temperature control IC detects transformer temperature output control signal; Export control signal to external power source controller input through the control pin again, power-supply controller of electric detects the PWM output of powered-down after the control signal, and Switching Power Supply quits work.
The said temperature control IC of the utility model is located in the hollow region between the upper and lower magnetic core, is positioned at the highest zone of transformer temperature to guarantee the temperature control IC.
The temperature signal output of the said temperature control IC of the utility model through on the printed circuit board (PCB) independently one road Copper Foil cabling be connected with the control pin, the power input of the temperature of temperature control IC passes through on the printed circuit board (PCB) independently that another road Copper Foil cabling is connected with power pins.
Respectively be provided with a groove on the magnetic post at the said magnetic core two ends down of the utility model, said printed circuit board (PCB) is embedded in described two grooves.
Compared with prior art; The utility model technology has the following advantages: through the internal temperature of sense switch power transformer; The break-make of control switching, too high when detected temperature, the temperature control IC is exported control signal external power source controller input; Power-supply controller of electric detects the PWM output of powered-down after the control signal, and Switching Power Supply quits work; Come other parts of Automatic Protection Switching power transformer and Switching Power Supply.
Description of drawings
Fig. 1 is the structural representation after magnetic core is gone up in the switching mode power supply transformer removal of the utility model overheat protector;
Fig. 2 is the structural representation of the switching mode power supply transformer of the utility model overheat protector.
Among the figure; 1. go up magnetic core, 2. descend magnetic core, 3. printed circuit board (PCB), 4. transformer pin, 5. temperature control IC.
Embodiment
Below in conjunction with specific embodiment the switching mode power supply transformer of a kind of overheat protector of the utility model is further set forth.
Shown in Fig. 1～2; A kind of switching mode power supply transformer of overheat protector comprises magnetic core 1, following magnetic core 2, printed circuit board (PCB) 3 and transformer pin 4, and upper and lower magnetic core constitutes the loop configuration of hollow; Printed circuit board (PCB) is between upper and lower magnetic core; Last magnetic core is the cover combined magnet core that Ferrite Material is processed into following magnetic core, and the transformer pin is that conducting metal is processed, and is fixedly welded on the printed circuit board (PCB); The internal layer Copper Foil cabling of printed circuit board (PCB) twines around upper and lower core center magnetic post, forms the winding of transformer.
This switching mode power supply transformer also comprises and is used to the temperature control IC 5 that detects the transformer temperature and export control signal; The temperature control chip is general conventional temperature detection control chip IC; Have temperature signal output and power input; The temperature control IC can be fixed on the upper surface of printed circuit board (PCB), and in the hollow region between upper and lower magnetic core, is positioned at the highest zone of transformer temperature to guarantee the temperature control IC; Particularly, on two magnetic posts at the two ends of following magnetic core a groove is arranged respectively, be used for fixing with printed circuit board (PCB), printed circuit board (PCB) embeds and is fixed in the groove of magnetic core; Be provided for the control pin and the power pins that is used for to the power supply of temperature control IC of output temperature control IC control signal in the transformer pin; The temperature signal output of temperature control IC through on the printed circuit board (PCB) independently one road Copper Foil cabling be connected with the control pin, the power input of the temperature of temperature control IC passes through on the printed circuit board (PCB) independently that another road Copper Foil cabling is connected with power pins.The temperature control IC is attached on the printed circuit board (PCB) in the magnetic core coverage; Through power pins the temperature control IC is supplied power; The temperature control IC detects transformer temperature output control signal, exports control signal to external power source controller input through the control pin again, the PWM of powered-down output after power-supply controller of electric detects this signal; Switching Power Supply quits work, with the break-make of control switching.
Last magnetic core and following magnetic core are bonding through the high temperature fixing glue, and the height of the aspect ratio temperature control IC of the hollow region between two magnetic cores after bonding is wanted height, to satisfy the topology requirement of fit on.
The execution mode of the utility model is not limited thereto; According to foregoing; Ordinary skill knowledge and customary means according to this area; Do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite, equivalent modifications, replacement or change that the utility model can also be made other various ways all can realize the utility model purpose.
Claims (4)
1. the switching mode power supply transformer of an overheat protector; Comprise magnetic core, following magnetic core, printed circuit board (PCB) and transformer pin; Said upper and lower magnetic core constitutes the loop configuration of hollow; Said printed circuit board (PCB) is characterized in that between upper and lower magnetic core: also comprise being used to the temperature control IC that detects the transformer temperature and export control signal, said temperature control IC is located at the surface of printed circuit board (PCB); Be provided with control pin that is used for output temperature control IC control signal and the power pins that is used for to the power supply of temperature control IC in the said transformer pin; The temperature signal output of temperature control IC is connected with said control pin; The power input of temperature control IC connects said power pins; The temperature control IC detects transformer temperature output control signal, through the control pin control signal is exported to the controller input of external switch power supply again.
2. the switching mode power supply transformer of overheat protector according to claim 1, it is characterized in that: said temperature control IC is located in the hollow region between the upper and lower magnetic core.
3. the switching mode power supply transformer of overheat protector according to claim 1 and 2; It is characterized in that: the temperature signal output of said temperature control IC through on the printed circuit board (PCB) independently one road Copper Foil cabling be connected with the control pin, the power input of the temperature of temperature control IC passes through on the printed circuit board (PCB) independently that another road Copper Foil cabling is connected with power pins.
4. the switching mode power supply transformer of overheat protector according to claim 3 is characterized in that: respectively be provided with a groove on the magnetic post at said magnetic core two ends down, said printed circuit board (PCB) is embedded in described two grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120255811 CN202167978U (en) | 2011-07-19 | 2011-07-19 | Over-temperature protection switch power supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120255811 CN202167978U (en) | 2011-07-19 | 2011-07-19 | Over-temperature protection switch power supply transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167978U true CN202167978U (en) | 2012-03-14 |
Family
ID=45803781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120255811 Expired - Fee Related CN202167978U (en) | 2011-07-19 | 2011-07-19 | Over-temperature protection switch power supply transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167978U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623157A (en) * | 2012-04-05 | 2012-08-01 | 南通米兰特电气有限公司 | Novel temperature control ring transformer |
| CN105138103A (en) * | 2015-07-27 | 2015-12-09 | 浪潮(北京)电子信息产业有限公司 | Power supply board and server circuit board system |
| CN110364326A (en) * | 2019-08-12 | 2019-10-22 | 上海派力防爆科技有限公司 | Energy saving low-power consumption explosion-proof electromagnetic coil |
| CN116705469A (en) * | 2023-08-07 | 2023-09-05 | 季华实验室 | LLC transformer assembly structure and assembly method thereof |
-
2011
- 2011-07-19 CN CN 201120255811 patent/CN202167978U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623157A (en) * | 2012-04-05 | 2012-08-01 | 南通米兰特电气有限公司 | Novel temperature control ring transformer |
| CN105138103A (en) * | 2015-07-27 | 2015-12-09 | 浪潮(北京)电子信息产业有限公司 | Power supply board and server circuit board system |
| CN110364326A (en) * | 2019-08-12 | 2019-10-22 | 上海派力防爆科技有限公司 | Energy saving low-power consumption explosion-proof electromagnetic coil |
| CN110364326B (en) * | 2019-08-12 | 2024-04-05 | 上海派力防爆科技有限公司 | Energy-saving low-power-consumption explosion-proof electromagnetic coil |
| CN116705469A (en) * | 2023-08-07 | 2023-09-05 | 季华实验室 | LLC transformer assembly structure and assembly method thereof |
| CN116705469B (en) * | 2023-08-07 | 2024-01-16 | 季华实验室 | LLC transformer assembly structure and assembly method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20160719 |