CN101572165A - Self-cooling high-frequency transformer group with temperature protection function - Google Patents
Self-cooling high-frequency transformer group with temperature protection function Download PDFInfo
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- CN101572165A CN101572165A CNA2009100739154A CN200910073915A CN101572165A CN 101572165 A CN101572165 A CN 101572165A CN A2009100739154 A CNA2009100739154 A CN A2009100739154A CN 200910073915 A CN200910073915 A CN 200910073915A CN 101572165 A CN101572165 A CN 101572165A
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Abstract
The invention relates to a high-frequency voltage transformation device in a locomotive car converter, in particular to a self-cooling high-frequency transformer group with a temperature protection function, which solves the problems of temperature rise and inconvenient overhaul and maintenance of the high-frequency transformer. The self-cooling high-frequency transformer group with the temperature protection function comprises a base with a lifting hole; two high-frequency transformers with draw rods are respectively fixed at the left side and the right side of the base; a stand is fixed at the upper end of each draw rod of the high-frequency transformers; a fan is respectively fixed at the left side and the right side of each stand; and two temperature sensors are fixed at the middle of a core of each high-frequency transformer. The invention has large output capacity and can be conveniently installed and moved. By the installation of the fans, the heat collection of the high-frequency transformers is slowed down; when the temperature is high, the temperature sensors can effectively protect the high-frequency transformers.
Description
Technical field
The present invention relates to the high-frequency transformation device in the rolling stock current transformer, be specially a kind of self-cooling high-frequency transformer group with temperature protection function.
Background technology
Along with developing rapidly of power electronic technology and power semiconductor technologies, the rolling stock current transformer is constantly to high-performance, high frequency, big capacity, modularization development, and high frequencyization and high capacity can cause its builtin voltage, electric current generation great change, not only cause very big electric stress to device, and at the input and output lead-in wire of device and produce electromagnetic noise on every side, and other equipment have also been produced interference, this public hazards are called electromagnetic interference (EMI).At this present situation, the rolling stock current transformer has adopted soft switch technique, and high frequency transformer then is the important component part in the soft switch technique.Though it has well eliminated the electric stress of device and relevant electromagnetic interference, yet also exist some defectives, high frequency transformer in practice owing to there are not good ventilation equipment to cause high frequency transformer heating, then influence operating efficiency, when temperature reaches high value, high frequency transformer might be burnt out, cause serious consequence; And it is also very inconvenient at aspects such as maintenance, maintenances.
Summary of the invention
The present invention provides a kind of self-cooling high-frequency transformer group with temperature protection function for the problem of the problem of temperature rise that solves the high frequency transformer in the rolling stock current transformer and maintenance, inconvenience when safeguarding.
The present invention adopts following technical scheme to realize: the self-cooling high-frequency transformer group with temperature protection function comprises the base that has lifting hole(eyelet); the left and right sides is fixed with the high frequency transformer that has pull bar respectively on the base; the pull bar upper end of each high frequency transformer is fixed with support; the left and right sides is fixed with blower fan respectively on each support, and each high frequency transformer iron core middle part is fixed with two temperature sensors.By blower fan is installed on high frequency transformer, after the blower fan energized, the wind-force that produces cools off high frequency transformer, when arriving high value as the temperature height that makes high frequency transformer for a certain reason, temperature sensor sends guard signal, by external control circuit high frequency transformer is quit work, when treating that normal value falls back in temperature, guard signal is cancelled, and external control circuit is connected, and high frequency transformer is started working; Owing to adopted modular design, each parts is reasonably combined, can the self-cooling high-frequency transformer group with temperature protection function be moved by lifting hole(eyelet), thus the enforcement of operations such as convenient maintenance, maintenance.
The present invention adopts modular design concept, two high frequency transformers reasonably are combined as a self-cooling high-frequency transformer group with temperature protection function, output capacity has reached 2 * 125kw, switching frequency reaches 4KHz, satisfied the requirement of rolling stock, and can install easily, move, convenient maintenance; By blower fan is installed on high frequency transformer; after the blower fan energized high frequency transformer is ventilated, the gathering that slows down its heat is when the temperature that makes high frequency transformer for a certain reason reaches high value; temperature sensor can effectively be protected it, and preventing that temperature rise is too high influences its work.This device has been used successfully in the current transformer of rolling stock at present.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
1-base among the figure, 2-high frequency transformer, 3-pull bar, 4-temperature sensor external interface, 5-temperature sensor, 6-blower fan, 7-blower fan external interface, 8-support, 9-pressing plate.
Embodiment
Self-cooling high-frequency transformer group with temperature protection function comprises the base 1 that has lifting hole(eyelet); the left and right sides is fixed with the high frequency transformer 2 that has pull bar 3 respectively on the base 1; pull bar 3 upper ends of each high frequency transformer 2 are fixed with support 8; the left and right sides is fixed with blower fan 6 respectively on each support 8, and each high frequency transformer 2 middle part unshakable in one's determination is fixed with two temperature sensors 5.During concrete enforcement, be fixed with the blower fan external interface 7 between two blower fans 6 on the support 8 of each high frequency transformer 2, power supply can make two blower fans 6 of each high frequency transformer 2 work simultaneously by being connected with blower fan external interface 7, and structural design has been carried out reasonable optimizing.The left side of each temperature sensor 5 is provided with the connected temperature sensor external interface 4 that is fixed on the high frequency transformer 2, can effectively improve the operating efficiency of temperature sensor 5.Temperature sensor 5 is provided with and the fixing pressing plate 9 of high frequency transformer 2, has the perforation that is used to pass the line that connects temperature sensor 5 on the pressing plate 9, can make the installing and fixing of temperature sensor 5 and the line that is connected temperature sensor 5, placement location more reasonable like this.In specific implementation process, the lower end of eight pull bars 3 on each high frequency transformer 2 and base 1 are by being weldingly connected, upper ends has support 8, with fastening bolt support 8 and pull bar 3 upper ends, blower fan 6 are fixed with support 8 then, blower fan external interface 7 all is connected by hardwired with temperature sensor 5 with blower fan 6, temperature sensor external interface 4, pressing plate 9 is fixed on the high frequency transformer 2 by trip bolt, and the hardwired that connects temperature sensor external interface 4 passes pressing plate 9 and connects temperature sensor 5.During work; power supply is connected on the former limit of transformer; inferior edge joint line end; blower fan 6 connects power supply by blower fan external interface 7; when power supply is started working; high frequency transformer 2 is by the required 380V alternating voltage of devices such as inverter output rolling stock; but himself temperature is also in continuous rising; the air quantity that blower fan 6 produces can make the temperature of high frequency transformer 2 reduce; guarantee its operate as normal; when being raised to high value as the temperature that makes high frequency transformer 2 for some reason; temperature sensor 5 is quoted guard signal by its external interface, thereby external control circuit is disconnected, and high frequency transformer 2 quits work; when temperature drops to normal temperature; guard signal is cancelled, and external control circuit is closed again, and high frequency transformer 2 is started working.
Claims (7)
1, a kind of self-cooling high-frequency transformer group with temperature protection function; it is characterized in that: comprise the base (1) that has lifting hole(eyelet); base (1) is gone up the left and right sides and is fixed with the high frequency transformer (2) that has pull bar (3) respectively; pull bar (3) upper end of each high frequency transformer (2) is fixed with support (8); each support (8) is gone up the left and right sides and is fixed with blower fan (6) respectively, and each high frequency transformer (2) middle part unshakable in one's determination is fixed with two temperature sensors (5).
2, the self-cooling high-frequency transformer group with temperature protection function according to claim 1 is characterized in that: be fixed with the blower fan external interface (7) between two blower fans on the support (8) of each high frequency transformer (2).
3, the self-cooling high-frequency transformer group with defencive function according to claim 1 and 2 is characterized in that: the left side of each temperature sensor (5) is provided with the connected temperature sensor external interface (4) that is fixed on the high frequency transformer (2).
4, the self-cooling high-frequency transformer group with defencive function according to claim 1 and 2 is characterized in that: temperature sensor (5) is provided with and the fixing pressing plate (9) of high frequency transformer (2).
5, the self-cooling high-frequency transformer group with defencive function according to claim 4 is characterized in that: have the perforation that is used to pass the line that connects temperature sensor (5) on the pressing plate (9).
6, the self-cooling high-frequency transformer group with defencive function according to claim 3 is characterized in that: temperature sensor (5) is provided with and the fixing pressing plate (9) of high frequency transformer (2).
7, the self-cooling high-frequency transformer group with defencive function according to claim 6 is characterized in that: have the perforation that is used to pass the line that connects temperature sensor (5) on the pressing plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100739154A CN101572165B (en) | 2009-03-10 | 2009-03-10 | Self-cooling high-frequency transformer group with temperature protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100739154A CN101572165B (en) | 2009-03-10 | 2009-03-10 | Self-cooling high-frequency transformer group with temperature protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101572165A true CN101572165A (en) | 2009-11-04 |
| CN101572165B CN101572165B (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100739154A Expired - Fee Related CN101572165B (en) | 2009-03-10 | 2009-03-10 | Self-cooling high-frequency transformer group with temperature protection function |
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| Country | Link |
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| CN (1) | CN101572165B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797920A (en) * | 2010-04-26 | 2010-08-11 | 永济新时速电机电器有限责任公司 | Hanging device for traction auxiliary power supply all-in-one converter of motor train unit |
| CN102769269A (en) * | 2012-07-29 | 2012-11-07 | 中国北车集团大连机车车辆有限公司 | Electric locomotive main transformer overheat protection control method |
| CN103840431A (en) * | 2012-11-23 | 2014-06-04 | 西门子（上海）电气传动设备有限公司 | Transformer overtemperature protection device, and transformer and frequency converter adopting the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103192U (en) * | 1991-09-27 | 1992-04-29 | 泰州市变压器厂 | Transformer for ship |
| CN2473655Y (en) * | 2001-04-18 | 2002-01-23 | 王世有 | Thermometer for transformer winding |
| CN2566314Y (en) * | 2002-06-26 | 2003-08-13 | 武汉广远经济发展有限责任公司 | Main transformer fan controller for electric locomotive |
| CN201340777Y (en) * | 2009-01-21 | 2009-11-04 | 永济新时速电机电器有限责任公司 | Self-cooled high-frequency transformer unit with temperature protection function |
-
2009
- 2009-03-10 CN CN2009100739154A patent/CN101572165B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797920A (en) * | 2010-04-26 | 2010-08-11 | 永济新时速电机电器有限责任公司 | Hanging device for traction auxiliary power supply all-in-one converter of motor train unit |
| CN102769269A (en) * | 2012-07-29 | 2012-11-07 | 中国北车集团大连机车车辆有限公司 | Electric locomotive main transformer overheat protection control method |
| CN103840431A (en) * | 2012-11-23 | 2014-06-04 | 西门子（上海）电气传动设备有限公司 | Transformer overtemperature protection device, and transformer and frequency converter adopting the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101572165B (en) | 2012-01-11 |
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Granted publication date: 20120111 Termination date: 20180310 |