CN201374650Y - Switching power supply with fast heat dispersion for printed circuit board testing machine - Google Patents
Switching power supply with fast heat dispersion for printed circuit board testing machine Download PDFInfo
- Publication number
- CN201374650Y CN201374650Y CN200920054009U CN200920054009U CN201374650Y CN 201374650 Y CN201374650 Y CN 201374650Y CN 200920054009 U CN200920054009 U CN 200920054009U CN 200920054009 U CN200920054009 U CN 200920054009U CN 201374650 Y CN201374650 Y CN 201374650Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- switching power
- circuit board
- fan
- printed circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
The utility model relates to a switching power supply with fast heat dispersion for a printed circuit board testing machine, comprising an outer casing, an input transformer and an inversion switching rectification filter circuit, wherein, the input transformer and the inversion switching rectification filter circuit are arranged in the outer casing. The left side and the right side of the outer casing are respectively provided with a heat dispersion grid, and a round hole is arranged on the front of the outer casing. A fan is installed on the round hole, and a power interface of the fan is connected to the output end of a DC power supply of the switching power supply. Due to the structure, the switching power supply is used for supplying power for the fan to cause the fan to exhaust outwards, and airflow enters quickly from the heat dispersion grids, passes the inner part of the switching power supply and is discharged from the round hole to cause the heat in the switching power supply to be dispersed in time, so that the good roles of convection and heat dispersion are played. The operating temperature of the inner part of the switching power supply is dropped to about 35 DEG C from about 65 DEG C of the original temperature, so the phenomenon that electronic components are burnt out to damage a circuit board, and the like, is avoided, and the using life of the switching power supply is prolonged greatly. Thus, the long-time stable work of a printed circuit board testing machine is ensured.
Description
Technical field
The utility model relates to the Switching Power Supply that a kind of printed circuit board test machine is used.
Background technology
It is that printed circuit board is carried out open-short circuit that the printed circuit board test machine mainly acts on, and guarantees that printed circuit board is qualified.Test machine mainly is made up of top cabinet, press, workbench etc., and switch card, control cabinet, Switching Power Supply etc. are installed in the cabinet of top.Wherein switch power source output voltage is respectively 12V and 5V DC power supply, and main switch card to test machine, control cabinet, jacking system etc. are powered, and guarantee test function operate as normal.Press is provided with the lifting portable plate, and after the upper die and lower die of anchor clamps to be tested were installed to press, the patrix that press lifting portable plate will drive test fixture descended and closes up with the counterdie of test fixture.After printed circuit board to be measured is put into the anchor clamps location, start Test Switchboard, press lifting portable plate descends, and printed circuit board is tested, and judges whether out short circuit.Switching Power Supply in the cabinet of test machine top is a metal shell, is provided with input transformer, inverse switch current rectifying and wave filtering circuit etc. in the shell, respectively has heat dissipating grid at the left and right sides of shell face, and the front and back of shell four faces are up and down sealed.There is following shortcoming in this Switching Power Supply: when work, circuit in the Switching Power Supply metal shell can produce heat, air is by the grid heat loss through convection, radiating rate is poor, the heat that is produced in the circuit working can't in time distribute, through measuring, about 65 degree of working temperature in the Switching Power Supply, make Switching Power Supply inside keep the condition of high temperature for a long time, often cause situations such as inner electronic devices and components burn out and have to change the monoblock circuit board, cause about 1.5 ten thousand yuan of the maintenance cost of annual every Switching Power Supply cost thus.
Summary of the invention
The purpose of this utility model just provides a kind of printed circuit board test machine Switching Power Supply of rapid heat dissipation.
The utility model can be realized in the following manner: printed circuit board test machine Switching Power Supply, comprise shell, and interior input transformer, inverse switch current rectifying and wave filtering circuit, the left and right sides face of shell respectively has heat dissipating grid, the front that it is characterized in that shell is provided with circular hole, fan is installed on circular hole, and the power interface of fan is connected on the dc power output end of Switching Power Supply.
The utility model is owing to adopt said structure, Switching Power Supply is powered to fan, make fan externally carry out exhausting, air-flow enters fast from heat dissipating grid, discharge by circular hole through in the Switching Power Supply, heat in the Switching Power Supply can in time be dispelled the heat, play good convection current and thermolysis, working temperature in the Switching Power Supply drops to about 35 degree by original about 65 degree, having avoided electronic devices and components to burn out phenomenons such as causing circuit board damage takes place, prolonged the useful life of Switching Power Supply greatly, thereby guaranteed that the printed circuit board test machine works long-term and stably.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the drawings: shell 1, circular hole 2, fan 3, input transformer 4, inverse switch current rectifying and wave filtering circuit 5, heat dissipating grid 6.
Embodiment
Below in conjunction with embodiment, the utility model will be further described, but it is not represented as unique execution mode of the present utility model.
Please read Fig. 1, with on the basis of Switching Power Supply, comprise shell 1 at existing printed circuit board test machine, and interior input transformer 4, inverse switch current rectifying and wave filtering circuit 5, shell 1 left and right sides face respectively has row's heat dissipating grid 6.Have a circular hole 2 on the front of described shell 1, DC12V 0.12A fan 3 is installed on circular hole 2, the power interface of fan 3 is connected on the DC power supply 12V output of Switching Power Supply.
When the utility model uses, Switching Power Supply is installed in the top cabinet of printed circuit board test machine, energized, Switching Power Supply is powered to fan 3, make fan 3 externally carry out exhausting, simultaneously with the most handy sheet metal sealing of heat dissipating grid 6 first halfs of Switching Power Supply shell 1 both sides, it is the inlet of convection current air that lattice 6 latter halfs are deleted in heat radiation, when fan 3 outwards carries out exhausting, air-flow enters fast from heat dissipating grid 6, through discharging by circular hole 2 in the Switching Power Supply, heat in the Switching Power Supply can in time be dispelled the heat, play good convection current and thermolysis, working temperature in the Switching Power Supply drops to about 35 degree by original about 65 degree, avoid electronic devices and components to burn out the generation that causes situations such as circuit board damage, prolonged the useful life of Switching Power Supply greatly, thereby guaranteed the long-time stable work of printed circuit board test machine.
Claims (1)
1, a kind of printed circuit board test machine Switching Power Supply of rapid heat dissipation, comprise shell (1), and the left and right sides face of interior input transformer (4), inverse switch current rectifying and wave filtering circuit (5), shell (1) respectively has heat dissipating grid (6), the front that it is characterized in that shell (1) is provided with circular hole (2), fan (3) is installed on circular hole (2), and the power interface of fan (3) is connected on the dc power output end of Switching Power Supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054009U CN201374650Y (en) | 2009-03-30 | 2009-03-30 | Switching power supply with fast heat dispersion for printed circuit board testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054009U CN201374650Y (en) | 2009-03-30 | 2009-03-30 | Switching power supply with fast heat dispersion for printed circuit board testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374650Y true CN201374650Y (en) | 2009-12-30 |
Family
ID=41500731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920054009U Expired - Fee Related CN201374650Y (en) | 2009-03-30 | 2009-03-30 | Switching power supply with fast heat dispersion for printed circuit board testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374650Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595772A (en) * | 2012-01-19 | 2012-07-18 | 福建星网视易信息系统有限公司 | Method for preventing interface burning-out of equipment with external equipment interface |
-
2009
- 2009-03-30 CN CN200920054009U patent/CN201374650Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595772A (en) * | 2012-01-19 | 2012-07-18 | 福建星网视易信息系统有限公司 | Method for preventing interface burning-out of equipment with external equipment interface |
| CN102595772B (en) * | 2012-01-19 | 2014-07-02 | 福建星网视易信息系统有限公司 | Method for preventing interface burning-out of equipment with external equipment interface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109524204A (en) | A kind of amorphous alloy dry-type transformer with thermal expansion bubble protection mechanism | |
| CN201374650Y (en) | Switching power supply with fast heat dispersion for printed circuit board testing machine | |
| CN115549492B (en) | Wide input range AC/DC converter | |
| CN202403826U (en) | Temperature alarm for transformer | |
| CN205049608U (en) | Portable power source PCBA board testing arrangement | |
| US10130005B2 (en) | Electronic product | |
| CN209562375U (en) | A kind of open isolated power supply converter encapsulating structure | |
| CN218603005U (en) | Filtering cabinet with heat dissipation function | |
| CN204651398U (en) | A kind of synthesizing jet-flow cooling battery | |
| CN201781727U (en) | External power case with heat dissipating pores | |
| CN207766755U (en) | Ultrasonic cleaner logging cabinet | |
| CN202978044U (en) | Power distribution cabinet | |
| CN205693684U (en) | The big data switching exchane of built-in detachable radiator structure | |
| CN210490714U (en) | Variable pitch frequency converter of wind generating set and motor test platform | |
| CN105446439A (en) | Power adapter | |
| CN203316937U (en) | Inverter welding machine adopting compressed air for heat radiation | |
| CN203240637U (en) | Turbo-charging warmer | |
| CN104967331B (en) | Frequency converter assembly | |
| CN218301206U (en) | Frequency conversion inverter | |
| CN218998660U (en) | Control device | |
| CN204429659U (en) | A kind of supersonic generator | |
| CN201639472U (en) | Low-voltage and small-power vector type variable frequency speed controller | |
| CN220359629U (en) | Efficient and energy-saving ATS controller | |
| CN214001364U (en) | New energy automobile charging control system | |
| CN217936398U (en) | Energy-efficient ultrasonic power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BOMIN ELECTRONIC CO., LTD. Free format text: FORMER NAME: MEIZHOU BOMIN ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 514768 Guangdong city of Meizhou Province Dongsheng Industrial Park B District Patentee after: Bomin Electronic Co., Ltd. Address before: 514768 Guangdong city of Meizhou Province Dongsheng Industrial Park B District Patentee before: Meizhou Bomin Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20170330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |