CN203085338U - Integrated high frequency power transformer - Google Patents
Integrated high frequency power transformer Download PDFInfo
- Publication number
- CN203085338U CN203085338U CN 201220591235 CN201220591235U CN203085338U CN 203085338 U CN203085338 U CN 203085338U CN 201220591235 CN201220591235 CN 201220591235 CN 201220591235 U CN201220591235 U CN 201220591235U CN 203085338 U CN203085338 U CN 203085338U
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- Prior art keywords
- transformer
- aluminium block
- annular groove
- high frequency
- centered cylinder
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Abstract
The utility model discloses an integrated high frequency power transformer. The transformer comprises an annular transformer magnet core, a transformer primary winding and an aluminum block with an annular groove. Multi-strand enameled wires uniformly wind the annular transformer magnet core so as to form the transformer primary winding. The annular transformer magnet core is placed in the annular groove of the aluminum block. An inner circle portion of the annular groove is a center cylinder of the aluminum block. The top of the center cylinder is higher than the top of the annular groove. The center cylinder is served as one end of a transformer secondary winding. Portions of the aluminum block except the center cylinder form the other end of the transformer secondary winding. A water passage is arranged in the aluminum block. The water is used to cool the transformer when the transformer works. The structure of the transformer is concise and compact. A heat dissipation effect is good and leakage inductance is less. The transformer can be applied in the large-power high-frequency switch power supply field.
Description
Technical field
The utility model relates to a kind of high-power high-frequency switch power supply that is applied to industry, is specifically related to a kind of integral high frequency power transformer.
Background technology
At present, the transformer secondary output rectification circuit of low-voltage, high-current high frequency switch power adopts full-wave rectifying circuit mostly
,Because full-wave rectifying circuit needs two secondary windings, prior art often uses copper bar or lead to constitute high-frequency power transformer secondary winding as connecting line, and the secondary winding is big because of the electric current that passes through, frequency is high and the influence that is subjected to kelvin effect, the effective conductive area of secondary winding bonding conductor can diminish, resistance increases, heating is serious, simultaneously because toroidal transformer magnetic core circular hole has limited the sectional area of secondary winding conductor, make by increasing secondary winding sectional area and reduce heating and be restricted.In addition, full-wave rectifying circuit needs two secondary windings, when the big electric current of output high frequency, the method that reduces heating by increase secondary winding sectional area is infeasible especially, and exist complex structure, technological requirement height, installation difficulty big, shortcomings such as transformer heat radiation is undesirable, transformer and secondary winding temperature height, and whole aircraft reliability is low.The utility model is used the transformer secondary output rectification circuit instead current-doubling rectifier at this problem, has designed the integral high frequency power transformer structure that is applicable to current-doubling rectifier.
The utility model content
Technical problem to be solved in the utility model, promptly the purpose of this utility model provides the integral high frequency power transformer structure of a kind of compact conformation, succinct, good cooling results.
The utility model is for achieving the above object, and the technical scheme that is adopted is as follows: a kind of integral high frequency power transformer comprises the aluminium block of toroidal transformer magnetic core, transformer former limit winding and band connected in star; The former limit of described transformer winding evenly is around on the toroidal transformer magnetic core by the multiply enamelled wire and constitutes, and the toroidal transformer magnetic core is put in the annular groove of described aluminium block; The inner circular part of described annular groove is divided into the centered cylinder of aluminium block, and the top of centered cylinder is higher than the top of annular groove, and this centered cylinder is as an end of transformer secondary winding, and the part of aluminium block except that centered cylinder constitutes the other end of transformer secondary winding.
Further, described integral high frequency power transformer also comprises the copper coin of being with center hole, described centered cylinder is passed the end of the copper coin of described band center hole as transformer secondary winding, centered cylinder does not contact with the center hole of copper coin, the copper coin of band center hole be placed on the aluminium block and with annular groove on end in contact, the part of aluminium block except that centered cylinder and the copper coin of being with circular hole constitute the other end of transformer secondary winding jointly.
Further, described integral high frequency power transformer, the aluminium block inside below the annular groove bottom is provided with the water route, and this water route is connected with the water route that centered cylinder inside is provided with.
Further, described integral high frequency power transformer, the water route that the aluminium block inside below the annular groove bottom is provided with is annular water route, the water route that centered cylinder inside is provided with is centered close on the central shaft of centered cylinder.
Further, described integral high frequency power transformer, the aluminium block of band connected in star is opened a breach at the edge of annular groove, and winding two ends, the former limit of transformer output line passes this breach.
Further, described integral high frequency power transformer, centered cylinder is provided with the water inlet that communicates with the water route, and aluminium block is provided with the delivery port that communicates with annular water route.
Compared with prior art, the utlity model has following advantage and technique effect: the utility model adopts the secondary winding that is made of transformer the aluminium block that has dug annular groove, its conductive cross-sectional area is more much bigger than copper bar or lead conductive cross-sectional area, the secondary winding cools off transformer by water during transformer work simultaneously, improves radiating effect greatly.Owing to adopt aluminium block to constitute the secondary winding of transformer, make that whole high-frequency power transformer is very simple, compact, succinct, good heat dissipation effect, and toroidal transformer magnetic core and former limit winding be coated in aluminium block and the copper coin fully, forms closed magnetic circuit, and electromagnetic interference is little.
Description of drawings
Fig. 1 is the structural representation of the integral high frequency power transformer of execution mode;
Fig. 2 is the sectional structure schematic diagram of the integral high frequency power transformer of execution mode;
Fig. 3 is the aluminium block plan structure schematic diagram of band connected in star among Fig. 1;
Among the figure: 1. toroidal transformer magnetic core, the 2. former limit of transformer winding, the 3. aluminium block of band connected in star, the 4. copper coin of band center hole, 5. aluminium block centered cylinder, 6, the aluminium block breach, 7, winding two ends, former limit, 8, water inlet, 9, delivery port.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement, the utility model further is described in detail.
Shown in Fig. 1 ~ 3, a kind of integral high frequency power transformer comprises the aluminium block 3 of toroidal transformer magnetic core 1, the former limit of transformer winding 2 and band connected in star; The former limit of described transformer winding 2 evenly is around on the toroidal transformer magnetic core 1 by the multiply enamelled wire and constitutes, and toroidal transformer magnetic core 1 is put in the annular groove of described aluminium block 3; The inner circular part of described annular groove is divided into the centered cylinder 5 of aluminium block 3, the top of centered cylinder 5 is higher than the top of annular groove, this centered cylinder 5 is as an end of transformer secondary winding, and the part of aluminium block 3 except that centered cylinder 5 constitutes the other end of transformer secondary winding.
Described integral high frequency power transformer also comprises the copper coin 4 of being with center hole, described centered cylinder 5 is passed the end of the copper coin 4 of described band center hole as transformer secondary winding, centered cylinder 5 does not contact with the center hole of copper coin 4, the copper coin 4 of band center hole be placed on the aluminium block 3 and with annular groove on end in contact, the other ends of the copper coin 4 common formation transformer secondary windings of the part of aluminium block 3 except that centered cylinder 5 and band circular hole.
Described integral high frequency power transformer, aluminium block 3 inside below the annular groove bottom are provided with the water route, and this water route is connected with the water route that centered cylinder 5 inside are provided with.
Described integral high frequency power transformer, the water route that the aluminium block inside below the annular groove bottom is provided with is annular water route, the water route that centered cylinder 5 inside are provided with is centered close on the central shaft of centered cylinder 5.
Described integral high frequency power transformer, the aluminium block 3 of band connected in star are opened a breach 6 at the edge of annular groove, winding two ends, the former limit of transformer output line 7 passes this breach 6.
Described integral high frequency power transformer, centered cylinder 5 are provided with the water inlet 8 that communicates with the water route, and aluminium block is provided with the delivery port 9 that communicates with annular water route.
The integral high frequency power transformer of said structure can be used in the current-doubling rectifier of transformer secondary output of low-voltage, high-current high frequency switch power, that is: aluminium block centered cylinder 5 is as one group of a termination of the secondary output of the integral high frequency power transformer negative electrode of anode rectification diode (led) module altogether; The copper coin 4 of band center hole is total to the negative electrode of anode rectification diode (led) module as another group of another termination of the secondary output of integral high frequency power transformer; The anode of these two groups common anode rectification diode (led) modules is installed in the tow sides of same water-filled radiator respectively.During Switching Power Supply work, transformer and current doubler rectifier are cooled off, form the transformer and the current doubler rectifier of a water-cooled by water.
The integral high frequency power transformer structure of said structure is very compact, succinct, transformer time low, the good heat dissipation effect of secondary winding temperature rise, and toroidal transformer magnetic core and former limit winding are coated in aluminium block and the copper coin fully, form closed magnetic circuit, electromagnetic interference is little.
Specific embodiment described herein only is specifying the utility model spirit; those skilled in the art can make various modifications to this specific embodiment or replenish or adopt similar mode to substitute under the prerequisite of principle of the present utility model and essence, but these are changed and all fall into protection range of the present utility model.Therefore the utility model technical scope is not limited to the foregoing description.
Claims (6)
1. integral high frequency power transformer is characterized in that comprising the aluminium block of toroidal transformer magnetic core, transformer former limit winding and band connected in star; The former limit of described transformer winding evenly is around on the toroidal transformer magnetic core by the multiply enamelled wire and constitutes, and the toroidal transformer magnetic core is put in the annular groove of described aluminium block; The inner circular part of described annular groove is divided into the centered cylinder of aluminium block, and the top of centered cylinder is higher than the top of annular groove, and this centered cylinder is as an end of transformer secondary winding, and the part of aluminium block except that centered cylinder constitutes the other end of transformer secondary winding.
2. integral high frequency power transformer according to claim 1, it is characterized in that also comprising the copper coin of being with center hole, described centered cylinder is passed the end of the copper coin of described band center hole as transformer secondary winding, centered cylinder does not contact with the center hole of copper coin, the copper coin of band center hole be placed on the aluminium block and with annular groove on end in contact, the part of aluminium block except that centered cylinder and the copper coin of being with circular hole constitute the other end of transformer secondary winding jointly.
3. integral high frequency power transformer according to claim 1 is characterized in that the aluminium block inside below the annular groove bottom is provided with the water route, and this water route is connected with the water route that centered cylinder inside is provided with.
4. integral high frequency power transformer according to claim 3 is characterized in that the water route that the aluminium block inside of annular groove bottom below is provided with is annular water route, and the water route that centered cylinder inside is provided with is centered close on the central shaft of centered cylinder.
5. integral high frequency power transformer according to claim 1 is characterized in that the aluminium block of band connected in star is opened a breach at the edge of annular groove, and winding two ends, the former limit of transformer output line passes this breach.
6. integral high frequency power transformer according to claim 3 is characterized in that centered cylinder is provided with the water inlet that communicates with the water route, and aluminium block is provided with the delivery port that communicates with annular water route.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591235 CN203085338U (en) | 2012-11-12 | 2012-11-12 | Integrated high frequency power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591235 CN203085338U (en) | 2012-11-12 | 2012-11-12 | Integrated high frequency power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203085338U true CN203085338U (en) | 2013-07-24 |
Family
ID=48831154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220591235 Expired - Fee Related CN203085338U (en) | 2012-11-12 | 2012-11-12 | Integrated high frequency power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203085338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956350A (en) * | 2012-11-12 | 2013-03-06 | 华南理工大学 | Integrated high-frequency power transformer |
-
2012
- 2012-11-12 CN CN 201220591235 patent/CN203085338U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956350A (en) * | 2012-11-12 | 2013-03-06 | 华南理工大学 | Integrated high-frequency power transformer |
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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: 20130724 Termination date: 20171112 |