CN206341132U - A kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion - Google Patents
A kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion Download PDFInfo
- Publication number
- CN206341132U CN206341132U CN201621432418.0U CN201621432418U CN206341132U CN 206341132 U CN206341132 U CN 206341132U CN 201621432418 U CN201621432418 U CN 201621432418U CN 206341132 U CN206341132 U CN 206341132U
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- Prior art keywords
- oxide
- paster
- semiconductor
- boss
- rectification metal
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 41
- 239000006185 dispersion Substances 0.000 title claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000741 silica gel Substances 0.000 claims abstract description 20
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Rectifiers (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model provides a kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion, improves the Switching Power Supply of paster rectification metal-oxide-semiconductor heat dispersion, including shell, circuit arrangement and heat-conducting silica gel sheet；Above-mentioned shell includes the upper lid and bottom seat being fixedly connected；Base includes base plate, front side board and the back side panel of integrally connected；Circuit arrangement includes the circuit board being fixedly installed on the base plate of base, and circuit board is provided with the circuit for 2~4 paster rectification metal-oxide-semiconductors for including exporting rectification unit, and it is structurally characterized in that：The base plate of base provided with 1 with base plate integrally and the boss that projects upwards；Boss has upper surface and lower port；Each paster rectification metal-oxide-semiconductor is arranged on the lower surface of circuit board, and the front of each paster rectification metal-oxide-semiconductor is in close contact by the upper surface of heat-conducting silica gel sheet and boss.The utility model can reduce Switching Power Supply cost, improve the radiating effect and functional reliability of paster rectification metal-oxide-semiconductor.
Description
Technical field
The utility model is related to field of switch power, and in particular to a kind of raising paster rectification metal-oxide-semiconductor heat dispersion is opened
Powered-down source.
Background technology
200W/300W Switching Power Supplies are used in the electrical equipment such as Industry Control, LED display and are used widely.Switching Power Supply
Circuit board and related device generally by shell and in shell are constituted.Interlock circuit, circuit are provided with circuit board
It is made up of a large amount of electronic components.Because the applied environment of Switching Power Supply is restricted, the shell sizes of Switching Power Supply are generally smaller, defeated
Go out voltage relatively low, and power output is relatively large.Thus output current is relatively large so that when Switching Power Supply works in it
Portion can produce more heat, and it is one of main heater members of Switching Power Supply particularly to export rectifying tube.It is existing for this problem
Switching Power Supply more than encapsulated using synchronous rectification using paster metal-oxide-semiconductor and reduce the loss on output rectifying tube so as to subtract
The overall heating of small power supply, to reduce the loss of output rectifying tube, but because the devices of paster encapsulation are relative to slotting
The devices volume of part formula is smaller, and thermal capacity is low, thus how the heat in the devices for encapsulating paster
Amount exports to the main bottleneck problem that shell gets on to become this technology faster.Common paster rectification metal-oxide-semiconductor radiating side
Method is the heat-conducting silica gel sheet for installing high thermal conductivity coefficient additional between paster rectification metal-oxide-semiconductor and shell, by the heat of paster rectification metal-oxide-semiconductor
It is delivered on shell and is radiated.However, the requirement due to safe spacing and the height by other devices in circuit arrangement are limited
System, height of the circuit board base plate away from shell of Switching Power Supply is generally 3 mm, thus needs to lead in 3 more than mm height using thickness
Hot silica gel piece, still, with the increase of heat-conducting silica gel sheet thickness, radiating effect declines rapidly, while so that heat conductive silica gel cost
Rise, and in order to reach equal radiating effect, the thermal conductivity factor of heat-conducting silica gel sheet need to be improved, Switching Power Supply is further increased
Cost.
Utility model content
The purpose of this utility model is：For problems of the prior art paster rectification metal-oxide-semiconductor is improved there is provided one kind
The Switching Power Supply of heat dispersion, it is by outer casing base structure and the Curve guide impeller of the mounting means of paster rectification metal-oxide-semiconductor, greatly
Width reduces the heat-conducting silica gel sheet thickness between paster rectification metal-oxide-semiconductor and base, reduces Switching Power Supply cost and lifting paster rectification MOS
Pipe radiating effect.
The technical solution of the utility model is：The switch electricity of the present utility model for improving paster rectification metal-oxide-semiconductor heat dispersion
Source, improves the Switching Power Supply of paster rectification metal-oxide-semiconductor heat dispersion, including shell, circuit arrangement and heat-conducting silica gel sheet；Above-mentioned is outer
Shell includes the upper lid and bottom seat being fixedly connected；Base includes base plate, front side board and the back side panel of integrally connected；Circuit arrangement includes
The circuit board on the base plate of base is fixedly installed on, circuit board is provided with 2~4 paster rectifications for including exporting rectification unit
The circuit of metal-oxide-semiconductor, it is structurally characterized in that：
The base plate of above-mentioned base provided with 1 with base plate integrally and the boss that projects upwards；Boss has upper surface
And lower port；Each paster rectification metal-oxide-semiconductor is arranged on the lower surface of circuit board, and each paster rectification metal-oxide-semiconductor front by leading
The upper surface of hot silica gel piece and boss is in close contact.
Further scheme is：The upper surface of above-mentioned boss and lower port are square.
Further scheme is：The upper surface size of above-mentioned boss is 24 mm × 20mm, and the lower port size of boss is
28 mm × 23.2mm, the front and rear back side panel distance to center line and base of boss is 27.6mm.
Further scheme is：The material of the upper lid and bottom seat of above-mentioned shell is aluminium.
The utility model has positive effect：The Switching Power Supply of the present utility model for improving paster metal-oxide-semiconductor heat dispersion,
It on the base plate of outer casing base by setting a boss projected upwards with base plate integrally, by switching power circuit
Export rectification each paster rectification metal-oxide-semiconductor located at circuit board lower surface on, and by heat-conducting silica gel sheet with it is convex on base plate
The upper surface of platform is in close contact, and through kind of structure design compared to prior art, advantage is：On the one hand heat-conducting silica gel sheet is caused
Thickness significantly reduces, so as to reduce the cost of Switching Power Supply；On the other hand because the thickness of heat-conducting silica gel sheet significantly reduces, from
And thermal resistance of the paster rectification metal-oxide-semiconductor by heat transfer between heat-conducting silica gel sheet and base is significantly reduced, so as to enhance radiating
Effect, improves the functional reliability of paster rectification metal-oxide-semiconductor.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is Fig. 1 top views；
Fig. 3 be Fig. 1 in base structural representation；
Fig. 4 is Fig. 3 top view；
Fig. 5 is Fig. 3 right view；
Fig. 6 be Fig. 1 in remove schematical left view after outer casing upper cover.
Reference in above-mentioned accompanying drawing is as follows：
Upper lid 1, base 2, base plate 21, front side board 22, back side panel 23, boss 24；
Circuit board 3, paster rectification metal-oxide-semiconductor 4, heat-conducting silica gel sheet 5.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
（Embodiment 1）
The Switching Power Supply of the raising paster rectification metal-oxide-semiconductor heat dispersion of the present embodiment, it is mainly by shell and circuit arrangement
Composition.
See Fig. 1 and Fig. 2, shell is mainly made up of upper lid 1 and base 2, and the material of upper lid 1 and base 2 is preferably thermal diffusivity
Good aluminium.During assembling, upper lid 1 is fixedly mounted on the top of base 2.
Referring to Fig. 3 to Fig. 5, base 2 is mainly integrally made up of base plate 21, front side board 22 and back side panel 23；In base plate 21
Portion's side position to the left provided with 1 with base plate integrally and the boss 24 that projects upwards；The upper surface of boss 24 and lower port are in side
Shape；In the present embodiment, the upper surface size of boss 24 is preferred to use 24 mm × 20mm, and the lower port size of boss 24 is preferably adopted
With 28 mm × 23.2mm, the sagittal center line of boss 24 is preferred to use 27.6mm with the distance of back side panel 23.
Referring to Fig. 6, circuit arrangement includes the circuit board 3 being fixedly installed on the base plate 21 of base 2, and circuit board 3 is provided with
Circuit, circuit includes the grade element of 2~4 paster rectification metal-oxide-semiconductors 4 for exporting rectification unit.The circuit arrangement of Switching Power Supply is
Existing mature technology, is not detailed.Paster rectification metal-oxide-semiconductor 4 is one of major power heater members of Switching Power Supply.
Each paster rectification metal-oxide-semiconductor 4 is on the lower surface of circuit board 3, and the front of each paster rectification metal-oxide-semiconductor 4 passes through heat conduction
The upper surface of silica gel piece 5 and the boss 24 of the base plate 21 of base 2 is in close contact.
Each paster rectification metal-oxide-semiconductor 4 is using the mounting means of the present embodiment, and it is compared to prior art, advantage：Heat conduction
The thickness of silica gel piece 5 significantly reduces, so as to reduce the cost of Switching Power Supply；On the other hand due to the thickness of heat-conducting silica gel sheet 5
Significantly reduce, so as to significantly reduce heat transfer between the base plate 21 that paster rectification metal-oxide-semiconductor 4 passes through heat-conducting silica gel sheet and base 2
Thermal resistance, so as to enhance radiating effect, improve the functional reliability of paster rectification metal-oxide-semiconductor 4.
Above example is the explanation to embodiment of the present utility model, rather than to limitation of the present utility model,
Person skilled in the relevant technique can also make various changes in the case where not departing from spirit and scope of the present utility model
Change and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes should be included into this practicality newly
The scope of patent protection of type.
Claims (4)
1. a kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion, including shell, circuit arrangement and heat-conducting silica gel sheet；
Described shell includes the upper lid and bottom seat being fixedly connected；Base includes base plate, front side board and the back side panel of integrally connected；Circuit
Device includes the circuit board being fixedly installed on the base plate of base, and circuit board, which is provided with, to be included exporting 2~4 patches of rectification unit
The circuit of piece rectification metal-oxide-semiconductor, it is characterised in that：
The base plate of described base provided with 1 with base plate integrally and the boss that projects upwards；Boss has upper surface with
Port；Each paster rectification metal-oxide-semiconductor is arranged on the lower surface of circuit board, and the front of each paster rectification metal-oxide-semiconductor passes through thermal conductive silicon
The upper surface of film and boss is in close contact.
2. the Switching Power Supply according to claim 1 for improving paster rectification metal-oxide-semiconductor heat dispersion, it is characterised in that：It is described
Boss upper surface and lower port be square.
3. the Switching Power Supply according to claim 1 or 2 for improving paster rectification metal-oxide-semiconductor heat dispersion, it is characterised in that：Institute
The upper surface size for the boss stated is 24 mm × 20mm, and the lower port size of boss is 28 mm × 23.2mm, boss it is front and rear
It is 27.6mm to the back side panel distance of center line and base.
4. the Switching Power Supply according to claim 3 for improving paster rectification metal-oxide-semiconductor heat dispersion, it is characterised in that：It is described
Shell upper lid and bottom seat material be aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432418.0U CN206341132U (en) | 2016-12-23 | 2016-12-23 | A kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432418.0U CN206341132U (en) | 2016-12-23 | 2016-12-23 | A kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206341132U true CN206341132U (en) | 2017-07-18 |
Family
ID=59301948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432418.0U Ceased CN206341132U (en) | 2016-12-23 | 2016-12-23 | A kind of Switching Power Supply for improving paster rectification metal-oxide-semiconductor heat dispersion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206341132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031713A (en) * | 2019-12-31 | 2020-04-17 | 友信宏科新能源（徐州）有限公司 | Motor controller and electric control assembly |
-
2016
- 2016-12-23 CN CN201621432418.0U patent/CN206341132U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031713A (en) * | 2019-12-31 | 2020-04-17 | 友信宏科新能源（徐州）有限公司 | Motor controller and electric control assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20220808 Decision number of declaring invalidation: 57615 Granted publication date: 20170718 |