CN203086354U - An air-cooled large-power high-frequency switching power supply voltage-transforming and rectifying device - Google Patents
An air-cooled large-power high-frequency switching power supply voltage-transforming and rectifying device Download PDFInfo
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- CN203086354U CN203086354U CN 201320014909 CN201320014909U CN203086354U CN 203086354 U CN203086354 U CN 203086354U CN 201320014909 CN201320014909 CN 201320014909 CN 201320014909 U CN201320014909 U CN 201320014909U CN 203086354 U CN203086354 U CN 203086354U
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Abstract
The utility model discloses an air-cooled large-power high-frequency switching power supply voltage-transforming and rectifying device comprising a toroidal transformer core, a transformer primary winding, two groups of thin copper sheets, two block plates, two groups of common-cathode rectifier diode modules, and two heat dissipaters. The primary winding is formed by multi-strand varnished wires uniformly wound on the toroidal transformer core. The two groups of thin copper sheets pass through the toroidal transformer core in order to form a transformer secondary winding. One ends of the two groups of thin copper sheets are connected with the negative-pole copper plate of a secondary rectifier, while the other ends of the two groups of thin copper sheets are connected with the anodes of the two groups of common-cathode rectifier diode modules, respectively. The cathodes of the two groups of common-cathode rectifier diode modules are connected with the two heat dissipaters, respectively. The two heat dissipaters are connected through a positive pole copper plate in order to form the positive pole of the secondary rectifier. The low-voltage large-current high-frequency power voltage-transforming and rectifying device has advantages of very compact and structure, short connecting lines, low connecting resistance, low leakage inductance, and low temperature rise, and is suitable for the field of air-cooled large-power high-frequency switching power supplies.
Description
Technical field
The utility model relates to a kind of high power switching power supply that is applied to low-voltage, high-current, is specifically related to a kind of air-cooled high-power high-frequency switch power supply transformation rectifying device.
Background technology
The transformer secondary output rectification circuit of low-voltage, high-current high frequency switch power adopts full-wave rectifying circuit mostly
,High frequency transformer forms the secondary winding with the centre tap form, and transformer secondary winding generally is made of copper bar or lead, but because big by electric current, frequency is high, be subjected to the influence of kelvin effect, makes that the effective conductive area of secondary winding bonding conductor diminishes, resistance increases, heating is serious.Simultaneously because high frequency transformer toroidal transformer magnetic core circular hole has limited the increase of the sectional area of secondary winding conductor, make by increasing secondary winding sectional area and reduce heating and be restricted.So its technological requirement height, manufacture difficulty is big.At present, low-voltage, high-current high frequency switch power transformation rectifying device, particularly air-cooled structure, ubiquity complex structure, technological requirement height, installation difficulty are big, shortcomings such as the heat band is not walked, temperature rise height.
The utility model content
Technical problem to be solved in the utility model, promptly the purpose of this utility model provides the air-cooled high-power high-frequency switch power supply transformation rectifying device of a kind of compact conformation, succinct, good heat dissipation effect.
The utility model is for addressing the above problem, and the technical scheme that is adopted is as follows:
A kind of air-cooled high-power high-frequency switch power supply transformation rectifying device comprises toroidal transformer magnetic core, the former limit of transformer winding, first group of scale copper, second group of scale copper, negative pole copper coin, anodal copper coin, first group of common cathode rectifier diode module, second group of common cathode rectifier diode module, first radiator, second radiator, first copper coin, second copper coin; Described former limit winding evenly is around on the toroidal transformer magnetic core by the multiply enamelled wire and constitutes, and first group of scale copper and second group of scale copper pass the toroidal transformer magnetic core respectively and constitute transformer secondary winding; One of first group of scale copper terminates to the negative pole copper coin of secondary commutation device, and the other end is then received the anode of first group of common cathode rectifier diode module, and the negative electrode of first group of common cathode rectifier diode module is received on first radiator; One of second group of scale copper terminates to the negative pole copper coin of secondary commutation device, and the other end is then received the anode of second group of common cathode rectifier diode module, and the negative electrode of second group of common cathode rectifier diode module is received on second radiator; Anodal copper coin is connected in first radiator and second radiator-rise, and constitutes the positive pole of secondary commutation device.
Further optimize, the anode of described first group of common cathode rectifier diode module is linked together by first copper coin, and the anode of second group of common cathode rectifier diode module is linked together by second copper coin.
Further optimize, the negative electrode of described first group of common cathode rectifier diode module is received on first radiator, and anode is received on first copper coin; The negative electrode of second group of common cathode rectifier diode module is received on second radiator, and anode is received on second copper coin, and first radiator and second radiator are installed in respectively over against the both sides of toroidal transformer magnetic core looping pit.
Further optimize, described first group of scale copper and second group of scale copper constitute by the stack of multi-disc scale copper.
Further optimize, described first group of common cathode rectifier diode module and second group of common cathode rectifier diode module are formed by a plurality of rectifier diode modules.
As preferably, described first radiator and second radiator all can be selected the aluminium sheet fin for use.
Compared with prior art, the utlity model has following advantage and technique effect: the utility model passes the toroidal transformer magnetic core by adopting the multi-disc scale copper to be divided into two groups, constitute two coils of transformer secondary winding, one end of two coils is received the negative pole of transformer secondary output rectifier respectively, the other end is then received the anode of two groups of common cathode rectifier diode modules respectively, and the negative electrode of two groups of common cathode rectifier diode modules is installed in respectively on two module radiators.Adopt the copper sheet length of the feasible secondary winding that constitutes of this structure to Duo about 1 centimetre than the thickness of toroidal transformer magnetic core, and be made of the multi-disc scale copper, this greatly weakens kelvin effect, has improved effective usable floor area of copper sheet.Give two groups of common cathode diode (led) module heat radiations with two module radiators, its radiating effect is also even more ideal.This structure makes that whole transformer secondary winding and rectifier structure thereof are very compact, succinct, good heat dissipation effect, connection resistance is little, leakage inductance is little, temperature rise is low, has improved the reliability of complete machine.
Description of drawings
Fig. 1 is the high-power high-frequency power transformation rectifying device structural representation of execution mode.
Fig. 2 is the A end view of Fig. 1.
Fig. 3 is the phantom of Fig. 2.
Fig. 4 is a negative pole copper coin schematic diagram among Fig. 1.
Fig. 5 is the A end view of Fig. 4.
Fig. 6 is the plan view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement the utility model further is described in detail.
Shown in Fig. 1-2, a kind of air-cooled high-power high-frequency switch power supply transformation rectifying device comprises the former limit of transformer winding 1, toroidal transformer magnetic core 2, first group of scale copper 3, second group of scale copper 4, negative pole copper coin 5, anodal copper coin 6, first group of common cathode rectifier diode module 7, second group of common cathode rectifier diode module 8, first radiator 9, second radiator 10, first copper coin 11, second copper coin 12; As shown in Figure 3, described former limit winding 1 evenly is around on the toroidal transformer magnetic core 2 by the multiply enamelled wire and constitutes, and first group of scale copper 3 and second group of scale copper 4 pass toroidal transformer magnetic core 2 respectively and constitute transformer secondary winding; One of first group of scale copper 3 terminates to the negative pole copper coin 5 of secondary commutation device, and the other end is then received the anode of first group of common cathode rectifier diode module 7, and the negative electrode of first group of common cathode rectifier diode module 7 is received on first radiator 9; One of second group of scale copper 4 terminates to the negative pole copper coin 5 of secondary commutation device, and the other end is then received the anode of second group of common cathode rectifier diode module 8, and the negative electrode of second group of common cathode rectifier diode module 8 receives on second radiator 10; Anodal copper coin 6 is connected in first radiator 9 and second radiator 10-rise, and constitutes the positive pole of secondary commutation device.
The anode of described first group of common cathode rectifier diode module 7 is linked together by first copper coin 11, and the anode of second group of common cathode rectifier diode module 8 is linked together by second copper coin 12.
The negative electrode of described first group of common cathode rectifier diode module 7 is received on first radiator 9, and anode is received on first copper coin 11; The negative electrode of second group of common cathode rectifier diode module 8 receives on second radiator 10, and anode is received on second copper coin 12, and first radiator 9 and second radiator 10 are installed in respectively over against the both sides of toroidal transformer magnetic core looping pit.Shown in Fig. 4-6, described negative pole copper coin 5 is formed by a copper bar two ends bending, and after the bending, the copper bar two ends respectively form a rectangle, the mid portion parallelogram of copper bar.
As preferably, described first group of scale copper 3 and second group of scale copper 4 constitute by 6 0.5mm scale coppers stacks.
As preferably, described first group of common cathode rectifier diode module 7 and second group of common cathode rectifier diode module 8 are formed by 6 rectifier diode modules.
As preferably, described first radiator 9 and second radiator 10 all can be selected the aluminium sheet fin for use.
It is 56V that this air-cooled high-power high-frequency switch power supply transformation rectifying device is applied in a maximum output voltage, maximum output current is on the high-power monocrystalline silicon growing power supply of 640A, move 4 months, each full-load run continuously 4 hours, two groups of scale copper temperature rises that constitute high frequency transformer secondary winding all maintain about 40 ℃, each rectifier diode temperature rise all maintains about 30 ℃ in the secondary commutation diode (led) module, more than each temperature all about 50 minutes, reach stable.
Air-cooled high-power high-frequency switch power supply transformation rectifying device structure of the present utility model is very compact, succinct, good heat dissipation effect, connection resistance is little, leakage inductance is little, temperature rise is low, have very high reliability, be particularly suitable for the high-power high-frequency switch power supply of low-voltage, high-current.
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 (5)
1. air-cooled high-power high-frequency switch power supply transformation rectifying device comprises toroidal transformer magnetic core, the former limit of transformer winding, first group of scale copper, second group of scale copper, negative pole copper coin, anodal copper coin, first group of common cathode rectifier diode module, second group of common cathode rectifier diode module, first radiator, second radiator; The former limit of described transformer winding evenly is around on the toroidal transformer magnetic core by the multiply enamelled wire and constitutes, and first group of scale copper and second group of scale copper pass the toroidal transformer magnetic core respectively and constitute transformer secondary winding; One of first group of scale copper terminates to the negative pole copper coin of secondary commutation device, and the other end is then received the anode of first group of common cathode rectifier diode module, and the negative electrode of first group of common cathode rectifier diode module is received on first radiator; One of second group of scale copper terminates to the negative pole copper coin, and the other end is then received the anode of second group of common cathode rectifier diode module, and the negative electrode of second group of common cathode rectifier diode module is received on second radiator; Anodal copper coin is connected in first radiator and second radiator-rise, and constitutes the positive pole of secondary commutation device.
2. air-cooled high-power high-frequency switch power supply transformation rectifying device according to claim 1, the anode that it is characterized in that described first group of common cathode rectifier diode module is linked together by first copper coin, and the anode of second group of common cathode rectifier diode module is linked together by second copper coin.
3. air-cooled high-power high-frequency switch power supply transformation rectifying device according to claim 1 is characterized in that first radiator and second radiator are installed in respectively over against the both sides of toroidal transformer magnetic core looping pit.
4. air-cooled high-power high-frequency switch power supply transformation rectifying device according to claim 1 is characterized in that described first group of scale copper and second group of scale copper constitute by the stack of multi-disc scale copper.
5. air-cooled high-power high-frequency switch power supply transformation rectifying device according to claim 1 and 2 is characterized in that described first group of common cathode rectifier diode module and second group of common cathode rectifier diode module form by a plurality of rectifier diode modules.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014909 CN203086354U (en) | 2013-01-12 | 2013-01-12 | An air-cooled large-power high-frequency switching power supply voltage-transforming and rectifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014909 CN203086354U (en) | 2013-01-12 | 2013-01-12 | An air-cooled large-power high-frequency switching power supply voltage-transforming and rectifying device |
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| CN203086354U true CN203086354U (en) | 2013-07-24 |
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| CN 201320014909 Expired - Lifetime CN203086354U (en) | 2013-01-12 | 2013-01-12 | An air-cooled large-power high-frequency switching power supply voltage-transforming and rectifying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078521A (en) * | 2013-01-12 | 2013-05-01 | 华南理工大学 | Air-cooled high-power high-frequency switching power supply transformation rectification device |
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2013
- 2013-01-12 CN CN 201320014909 patent/CN203086354U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078521A (en) * | 2013-01-12 | 2013-05-01 | 华南理工大学 | Air-cooled high-power high-frequency switching power supply transformation rectification device |
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Granted publication date: 20130724 |