CN211350281U - High-adaptability transformer mounting structure for switching power supply - Google Patents
High-adaptability transformer mounting structure for switching power supply Download PDFInfo
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- CN211350281U CN211350281U CN202020273422.7U CN202020273422U CN211350281U CN 211350281 U CN211350281 U CN 211350281U CN 202020273422 U CN202020273422 U CN 202020273422U CN 211350281 U CN211350281 U CN 211350281U
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Abstract
The utility model relates to a high-adaptability transformer mounting structure for a switching power supply, which comprises a bottom shell and a top shell, wherein the outer surface of the top shell is fixedly provided with a plurality of radiating fins; an upper layer circuit board and a lower layer circuit board are installed in the bottom shell, a plurality of transformers are fixedly arranged on the lower layer circuit board, and mounting holes are formed in the upper layer circuit board and are located right above the transformers; the heat conduction frame is detachably connected in the mounting hole and comprises two vertically arranged mounting pieces and a fixing piece horizontally connected with the tops of the mounting pieces, and the mounting pieces are arranged on two sides of the transformer in an enclosing manner; top looks butt in stationary blade top and the epitheca, and the stationary blade bottom is equipped with and inserts the heat conduction pole of locating the transformer middle part, and heat conduction pole top symmetry is equipped with the stopper, and the guide way has been seted up along vertical direction to the stationary blade bottom, and the interior top of guide way is connected with the switching groove of seting up along the circular arc direction. The utility model discloses have the circuit board that can adapt to multiple transformer specification variation in size, improve production efficiency's effect.
Description
Technical Field
The utility model belongs to the technical field of switching power supply transformer mounting structure's technique and specifically relates to a switching power supply is with high adaptability transformer mounting structure is related to.
Background
The present switching power supply, also known as switching power supply, switching converter, is a high frequency electric energy conversion device. The function is to convert a level voltage into a voltage or current required by the user terminal through different types of architectures. A power supply typically contains more than one electromagnetic filter, the first located at the mains-connected power supply, which we can find behind the 220V mains interface of a power supply. The circuit mainly functions to filter out external burst pulses and high-frequency interference, and on the other hand, electromagnetic interference of the switching power supply to the outside can be reduced. The common power supply has larger heat productivity during working, wherein the transformer core group of the power supply has the largest heat productivity and the slowest heat dissipation, so that a heat dissipation structure needs to be designed to accelerate the heat dissipation of the transformer core group.
The transformer mounting structure for power supply heat dissipation is mainly characterized in that the transformer mounting structure comprises a mounting shell and a covering shell, a circuit board is mounted in the mounting shell, a plurality of transformers are arranged on the circuit board, a heat conducting frame is arranged around one side, away from the circuit board, of each transformer, a heat conducting rod is arranged in the middle of the heat conducting frame and penetrates through the middle of each transformer, the heat conducting rod is abutted to the mounting shell, and one side, away from the circuit board, of the heat conducting frame is abutted to the covering shell; the covering shell is provided with a plurality of radiating fins, and the radiating fins extend towards the direction far away from the covering shell. The utility model discloses a have the heat dissipation of accelerating transformer core group, avoid the power because of the overheated effect of damaging of transformer.
The above prior art solutions have the following drawbacks: in actual production, the used transformer model size of different usage circuit boards is all different, and the structure among the prior art scheme is fixed, therefore the heat conduction efficiency of heat conduction pole is not enough when the transformer is great, then the heat conduction pole can not insert the transformer middle part when the transformer is less to need design the dedicated heat conduction frame of pairing one by one according to actual conditions, reduced production efficiency.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a switching power supply is with high adaptability transformer mounting structure, can adapt to the circuit board of multiple transformer specification variation in size, improves production efficiency.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a high-adaptability transformer mounting structure for a switching power supply comprises a bottom shell and a top shell, wherein a plurality of radiating fins are fixedly arranged on the outer surface of the top shell; an upper layer circuit board and a lower layer circuit board are installed in the bottom shell, a plurality of transformers are arranged on the circuit board on the lower layer, mounting holes are formed in the circuit board on the upper layer, and the mounting holes are located right above the transformers; the heat conduction frame is detachably connected in the mounting hole and comprises two vertically and symmetrically arranged mounting pieces and fixing pieces horizontally connected with the tops of the mounting pieces, and the mounting pieces are arranged on two sides of the transformer in a surrounding manner; the top of the fixed piece is abutted against the top of the inner part of the top shell, the bottom of the fixed piece is detachably connected with a heat conducting rod inserted in the middle of the transformer, the top of the heat conducting rod is symmetrically provided with limit blocks, the bottom of the fixed piece is provided with a guide groove along the vertical direction, and the inner top of the guide groove is connected with a switching groove arranged along the arc direction; the limiting block slides to the top in the guide groove along the guide groove and then slides along the switching groove to enable the heat conducting rod to be fixedly connected with the heat conducting frame.
By adopting the technical scheme, the limiting block of the heat conducting rod slides to the top part in the guide groove along the guide groove, then slides along the switching groove to fixedly connect the heat conducting rod with the heat conducting frame, then the transformer is installed on the circuit board, the heat conducting rod is inserted into the middle part of the transformer, then the top shell is fixedly connected with the bottom shell, and the top part of the fixing piece is abutted against the inner surface of the top shell; after the power is switched on, the transformer generates heat, a part of heat is conducted to the top shell through the heat conduction frame and is dissipated to the air through the heat dissipation fins on the top shell, the contact area of the top shell and the air is increased due to the heat dissipation fins, so that the heat conducted to the heat dissipation fins can be rapidly dissipated to the air, and the other part of heat is dissipated through the bottom shell, so that the heat dissipation efficiency of the transformer is improved; when the size of the transformer changes, the heat conducting rod is separated from the heat conducting frame and replaced, so that the heat conducting rod is suitable for transformers of different sizes, and the transformer is convenient to use.
The present invention may be further configured in a preferred embodiment as: the end, far away from the guide groove, of the transfer groove is connected with a positioning groove, the positioning groove is formed in the vertical direction and extends downwards, and the end, far away from the guide groove, of the positioning groove is arranged in a sealing mode.
Through adopting above-mentioned technical scheme, when the stopper slided to constant head tank department, stopper and constant head tank looks joint to avoid heat conduction pole reverse slip and break away from mutually with the heat conduction frame.
The present invention may be further configured in a preferred embodiment as: the middle of the fixing piece is symmetrically provided with a hyperbolic-shaped abdicating arc, and a plurality of angle teeth are arranged on the abdicating arc in a protruding mode.
By adopting the technical scheme, the abdicating arc can conveniently fix the heat conduction frame and the circuit board, and the angle teeth can increase the friction force of the abdicating arc, so that the heat conduction frame is convenient to install.
The present invention may be further configured in a preferred embodiment as: the mounting pieces are in the shape of circular arcs which are symmetrical with each other.
Through adopting above-mentioned technical scheme, circular-arc installation piece can increase the area of contact between heat conduction frame and the transformer to increase the radiating efficiency.
The present invention may be further configured in a preferred embodiment as: the mounting piece is arranged to be an elastic piece.
By adopting the technical scheme, after the heat conduction frame is fixed with the circuit board, the mounting sheet is in foundation connection with the circuit board under the elastic action, so that the heat conduction frame is clamped with the circuit board, and the heat conduction frame is prevented from being separated from the circuit board.
The present invention may be further configured in a preferred embodiment as: the installation piece outside circumference is equipped with the block of falling the butt joint with the circuit board bottom looks butt that is located the upper strata, the block of falling is inverted triangle-shaped, just the top of block of falling is parallel with the circuit board that is located the upper strata.
Through adopting above-mentioned technical scheme, the piece that connects upside down can avoid heat conduction frame to drop from the circuit board, guarantees the stability of connecting.
The present invention may be further configured in a preferred embodiment as: and an insulating part is laid between the bottom shell and the circuit board.
By adopting the technical scheme, the circuit board is isolated from the installation shell by the insulating part, so that the electric leakage of the circuit board is avoided.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the detachable heat conducting rod is arranged, so that the heat conducting frame can adapt to transformers of various specifications, and the adaptability of the heat conducting frame is improved;
2. by arranging the abdicating arc and the angle teeth, the heat conducting frame can be conveniently installed;
3. through setting up the back-off piece, can avoid heat conduction frame to take place to drop from the circuit board.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an explosion diagram of the structure of the present invention.
Fig. 3 is an exploded view of the structure of the middle heat conduction frame of the present invention.
In the figure, 1, a bottom shell; 11. an insulating member; 2. a top shell; 21. a heat dissipating fin; 3. a lower layer circuit board; 31. a transformer; 4. an upper layer circuit board; 41. mounting holes; 42. a heat conducting frame; 421. mounting a sheet; 4211. a back-connecting block; 422. a fixing sheet; 4221. a guide groove; 4222. a transfer groove; 4223. positioning a groove; 4224. corner teeth; 423. a heat conducting rod; 4231. and a limiting block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, in order to provide a high-adaptability transformer mounting structure for a switching power supply, the high-adaptability transformer mounting structure for a switching power supply comprises a bottom shell 1 and a top shell 2, wherein a plurality of radiating fins 21 are fixedly arranged on the outer surface of the top shell 2; an upper layer circuit board and a lower layer circuit board are installed in the bottom shell 1, an insulating part 11 made of rubber for avoiding electric leakage is laid between the bottom shell 1 and the lower layer circuit board 3, a plurality of transformers 31 are fixedly arranged on the surface of the lower layer circuit board 3, mounting holes 41 are formed in the upper layer circuit board 4, the mounting holes 41 are located right above the transformers 31, heat conducting frames 42 are detachably connected in the mounting holes 41, the heat conducting frames 42 are arranged on two sides of the transformers 31 in a surrounding mode, the tops of the heat conducting frames 42 are abutted to the tops in the top shell 2, and the inner sides of the heat conducting frames 42 are abutted; two-layer circuit board sets firmly in drain pan 1 in proper order to enclose heat conduction frame 42 and establish in transformer 31 both sides, the circular telegram back, transformer 31 generates heat, and partly heat conducts to top shell 2 through heat conduction frame 42, and gives off to the air through radiating fin 21 on top shell 2, because radiating fin 21 has increased the area of contact of top shell 2 with the air, therefore the heat of conduction to radiating fin 21 can give off to the air rapidly, and another part heat gives off the heat through drain pan 1.
In order to adapt to transformers 31 with different diameters, referring to fig. 2 and 3, the heat conducting frame 42 comprises two mounting pieces 421 vertically and symmetrically arranged on two sides of the transformer and fixing pieces 422 horizontally connected with the tops of the mounting pieces 421, the mounting pieces 421 are in arc shapes which are mutually symmetrical, inverted blocks 4211 which are abutted with the bottom of the upper-layer circuit board 4 are circumferentially arranged on the outer sides of the mounting pieces 421, the inverted blocks 4211 are in inverted triangle shapes, and the tops of the inverted blocks 4211 are parallel to the upper-layer circuit board 4;
top looks butt in stationary blade 422 top and the top shell 2, and stationary blade 422 bottom grafting heat conduction pole 423, heat conduction pole 423 is inserted and is located transformer 31 middle part, and heat conduction pole 423 top symmetry is equipped with stopper 4231, guide way 4221 has been seted up along vertical direction in stationary blade 422 bottom, the interior top of guide way 4221 is connected with the switching groove 4222 of seting up along the circular arc direction, the one end that guide way 4221 was kept away from to switching groove 4222 is connected with constant head tank 4223, constant head tank 4223 is seted up and is extended downwards along vertical direction, and the one end that guide way 4221 was kept away from to constant head tank 4223 seals the setting.
Sliding a limiting block 4231 of the heat conducting rod 423 to the inner top of a guide groove 4221 along the guide groove 4221, sliding the limiting block 4231 to a positioning groove 4223 along a switching groove 4222 to fixedly connect the heat conducting rod 423 with a fixing piece 422, then installing the transformer 31 on the lower-layer circuit board 3, inserting the heat conducting rod 423 into the middle of the transformer 31, fixedly connecting the top shell 2 with the bottom shell 1, and enabling the top of the fixing piece 422 to abut against the inner top of the top shell 2; when the diameter of the transformer 31 changes, the heat conducting rod 423 is separated from the fixing piece 422 and the heat conducting rod 423 is replaced, so that the heat conducting rod 423 adapts to transformers 31 with different sizes.
Wherein, in order to make things convenient for to insert heat conduction frame 42 in the mounting hole 41, installation piece 421 sets up to the flexure strip, and stationary blade 422 middle part symmetry is seted up the hyperbola and is stepped down the arc, and the arc epirelief of stepping down is equipped with a plurality of angle teeth 4224.
The implementation principle of the embodiment is as follows: sliding a limiting block 4231 of the heat conducting rod 423 to the inner top of a guide groove 4221 along the guide groove 4221, sliding the limiting block 4231 to a positioning groove 4223 along a switching groove 4222 to fixedly connect the heat conducting rod 423 with a fixing piece 422, then installing the transformer 31 on the lower-layer circuit board 3, inserting the heat conducting rod 423 into the middle of the transformer 31, fixedly connecting the top shell 2 with the bottom shell 1, and enabling the top of the fixing piece 422 to abut against the inner top of the top shell 2;
after the power is turned on, the transformer 31 generates heat, a part of heat is conducted to the top shell 2 through the heat conduction frame 42 and is dissipated to the air through the heat dissipation fins 21 on the top shell 2, and because the heat dissipation fins 21 increase the contact area between the top shell 2 and the air, the heat conducted to the heat dissipation fins 21 can be rapidly dissipated to the air, and the other part of heat is dissipated through the bottom shell 1; when the diameter of the transformer 31 changes, the heat conducting rod 423 is separated from the fixing piece 422 and the heat conducting rod 423 is replaced, so that the heat conducting rod 423 adapts to transformers 31 with different sizes.
The detachable heat conducting rod 423 is arranged, so that the heat conducting frame 42 can adapt to transformers 31 with various specifications, and the adaptability of the heat conducting frame 42 is improved; by arranging the abdicating arc and the angle teeth 4224, the heat conducting frame 42 can be conveniently installed; by providing the reverse connection block 4211, the heat conduction frame 42 can be prevented from falling off from the circuit board.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A high-adaptability transformer mounting structure for a switching power supply comprises a bottom shell (1) and a top shell (2), wherein a plurality of radiating fins (21) are fixedly arranged on the outer surface of the top shell (2); two-layer circuit board about installing in drain pan (1), be located the lower floor be equipped with a plurality of transformers (31), its characterized in that on the circuit board: the circuit board on the upper layer is provided with a mounting hole (41), and the mounting hole (41) is positioned right above the transformer (31); the heat conduction frame (42) is detachably connected in the mounting hole (41), the heat conduction frame (42) comprises two vertically and symmetrically arranged mounting pieces (421) and a fixing piece (422) horizontally connected with the top of the mounting piece (421), and the mounting pieces (421) are arranged on two sides of the transformer (31) in an enclosing manner; the top of the fixing piece (422) is abutted against the top in the top shell (2), the bottom of the fixing piece (422) is detachably connected with a heat conducting rod (423) inserted in the middle of the transformer (31), the top of the heat conducting rod (423) is symmetrically provided with limit blocks (4231), the bottom of the fixing piece (422) is provided with a guide groove (4221) along the vertical direction, and the top in the guide groove (4221) is connected with a switching groove (4222) arranged along the arc direction; the limiting block (4231) slides to the inner top of the guide groove (4221) along the guide groove (4221) and then slides along the switching groove (4222) to fixedly connect the heat conducting rod (423) with the heat conducting frame (42).
2. The mounting structure of the high-adaptability transformer for the switching power supply according to claim 1, wherein: one end, far away from the guide groove (4221), of the transfer groove (4222) is connected with a positioning groove (4223), the positioning groove (4223) is formed in the vertical direction and extends downwards, and one end, far away from the guide groove (4221), of the positioning groove (4223) is arranged in a sealing mode.
3. The mounting structure of the high-adaptability transformer for the switching power supply according to claim 2, wherein: the middle part of the fixing piece (422) is symmetrically provided with a hyperbolic-shaped abdicating arc, and a plurality of angle teeth (4224) are convexly arranged on the abdicating arc.
4. The mounting structure of the high-adaptability transformer for the switching power supply according to claim 1, wherein: the mounting pieces (421) are in the shape of circular arcs which are symmetrical with each other.
5. The mounting structure of the high-adaptability transformer for the switching power supply as set forth in claim 4, wherein: the mounting piece (421) is an elastic piece.
6. The mounting structure of the high-adaptability transformer for the switching power supply according to claim 5, wherein: the installation piece (421) is provided with an inverse block (4211) which is abutted to the bottom of the circuit board on the upper layer in the circumferential direction, the inverse block (4211) is in an inverse triangle shape, and the top of the inverse block (4211) is parallel to the circuit board on the upper layer.
7. The mounting structure of the high-adaptability transformer for the switching power supply according to claim 1, wherein: an insulating part (11) is laid between the bottom shell (1) and the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273422.7U CN211350281U (en) | 2020-03-07 | 2020-03-07 | High-adaptability transformer mounting structure for switching power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273422.7U CN211350281U (en) | 2020-03-07 | 2020-03-07 | High-adaptability transformer mounting structure for switching power supply |
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| CN211350281U true CN211350281U (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981430A (en) * | 2020-08-27 | 2020-11-24 | 广东雷腾智能光电有限公司 | LED automobile headlamp |
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2020
- 2020-03-07 CN CN202020273422.7U patent/CN211350281U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981430A (en) * | 2020-08-27 | 2020-11-24 | 广东雷腾智能光电有限公司 | LED automobile headlamp |
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