CN207519007U - A kind of electronic load instrument - Google Patents
A kind of electronic load instrument Download PDFInfo
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- CN207519007U CN207519007U CN201721621533.7U CN201721621533U CN207519007U CN 207519007 U CN207519007 U CN 207519007U CN 201721621533 U CN201721621533 U CN 201721621533U CN 207519007 U CN207519007 U CN 207519007U
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- radiator
- circuit board
- electronic load
- semiconductor
- oxide
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Abstract
The utility model is related to electronic testing instrument field more particularly to a kind of electronic load instrument, including shell, control panel, circuit board, transformer, radiator and fan；Control panel is mounted on the foreboard of shell, inside the shell, circuit board is located at the top of radiator, the metal-oxide-semiconductor of circuit board is attached to the upper surface of radiator, transformer is located at the lower section of radiator, fan is arranged on the front end of radiator, and the back plate of shell is provided with ventilation hole, the rear end frontage and airiness hole of radiator.Circuit board, radiator and transformer in the electronic load instrument are arranged from top to down in the vertical direction, it is such to be arranged such that the projected area of this kind of electronic load instrument in the horizontal plane is small, it is compact-sized, too big space need not be vacateed when in use to place, it is easy to use.Circuit board is arranged on the top of radiator, and when fan lives radiator blowing, the micronic dust in air is difficult to float onto the circuit board positioned at the top of radiator, and the surface of circuit board is not easy dust accumulation.
Description
Technical field
The utility model is related to electronic testing instrument field more particularly to a kind of electronic load instrument.
Background technology
For power supply product, the inspection before manufacture is one of essential process.And many electronic products are going out
Power supply is assembled during factory, therefore, in plant produced, detection power supply is also very necessary.Typically, people use
Electronic load instrument tests the electric property of power supply, and electronic load instrument can simulate power supply institute's band load in working condition.
By power supply to be measured loading when on electronic load instrument, various characteristics of the power supply in the case where simulating working condition can be measured.
Electronic load instrument of the prior art generally comprises shell, control panel, circuit board, transformer, radiator and wind
Fan.The unreasonable situation of the layout generally existings of each parts in inside of electronic load instrument of the prior art, a kind of most typically
Situation be：Circuit board is laid in the bottom of electronic load instrument, since radiating efficiency is not high, it is therefore desirable in the upper of circuit board
Side sets multiple radiators laterally side by side, while also needs to vacate position placement transformer, this causes entire electronic load instrument to exist
Projected area on horizontal plane is larger, needs to vacate more space placement electronic load instrument when in use, inconvenient for use；It is and each
The height of a parts differs, and also results in that spare space in shell is more, and structure is not compact；Meanwhile radiator is arranged on circuit
The top of plate, when fan is dried toward radiator, the micronic dust in air can fall and be stacked on circuit board, influence the property of circuit
Energy.
For this reason, it may be necessary to it proposes to improve for problems of the prior art.
Utility model content
(1) technical problems to be solved
In order to solve the above problem of the prior art, the utility model provides a kind of electronic load instrument, internal structure
Compact, projected area in the horizontal plane is small, easy to use, and can effectively prevent circuit board dust accumulation.
(2) technical solution
To achieve the above object, the main technical schemes that the utility model uses include：
The utility model provides a kind of electronic load instrument, including shell, control panel, circuit board, transformer, heat dissipation
Device and fan；The control panel is mounted on the foreboard of the shell, and in the shell, the circuit board is located at the heat dissipation
The top of device, the metal-oxide-semiconductor of the circuit board are attached to the upper surface of the radiator, and the transformer is located under the radiator
Side, the fan are arranged on the front end of the radiator, and the back plate of the shell is provided with ventilation hole, the rear end of the radiator
Towards the ventilation hole.
Further, the metal-oxide-semiconductor is in direct contact the upper surface of the radiator, the rear end of the radiator with it is described outer
The back plate of shell is connected using insulating trip, and the back plate is insulation board, and the front end of the radiator is connect with fan, in the fan
Supporting rack is provided between the bottom plate of shell.
Further, multiple radiators are provided in the electronic load instrument, the multiple radiator is vertically arranged and set
It puts in the lower section of the circuit board.
Further, the circuit board is provided with the through-hole of hollow out, and the metal-oxide-semiconductor is located in the through-hole, from the electricity
The entire pin of the metal-oxide-semiconductor and the metal-oxide-semiconductor can be observed directly on the plate of road.
Further, the circuit board is provided with polylith metal-oxide-semiconductor, a plurality of radiating flow passage is provided in the radiator, often
Metal-oxide-semiconductor described in block is located at the top of different radiating flow passages respectively.
Further, the circuit board is provided with current sampling resistor, and the current sampling resistor is located in the fan
Air intake front.
(3) advantageous effect
The beneficial effects of the utility model are：
Relative to the prior art, circuit board, radiator and the transformer in the electronic load instrument of the utility model are vertical
It is arranged from top to down on direction, such to be arranged such that the projected area of this kind of electronic load instrument in the horizontal plane is small, structure is tight
It gathers, too big space need not be vacateed when in use to place, it is easy to use.Circuit board is arranged on the top of radiator, works as fan
Toward during radiator blowing, the micronic dust in air is difficult to float onto the circuit board positioned at the top of radiator, and the surface of circuit board is not
Easy dust accumulation reduces influence of the dust to the performance of circuit board.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the electronic load instrument of the utility model；
Fig. 2 is the side view of the electronic load instrument of the utility model.
【Reference sign】
11- foreboards, 12- back plates, 13- bottom plates；
2- control panels；
3- circuit boards, 31- through-holes, 32-MOS pipes, 33- current sampling resistors；
4- transformers；
5- radiators, 51- supporting racks,
6- fans.
Specific embodiment
It is below in conjunction with the accompanying drawings, right by specific embodiment in order to understand in order to preferably explain the utility model
The utility model is described in detail.
In the utility model, the shell of electronic load instrument is referred to, wherein, which includes the foreboard positioned at surrounding
11st, 12, two blocks of side plates of back plate and positioned at upper and lower top plate and bottom plate 13.In the accompanying drawings, in order to clearly illustrating the electronics
The internal structure of load meter, therefore conceal top plate and two blocks of side plates.
The utility model provides a kind of electronic load instrument, as depicted in figs. 1 and 2, including shell, control panel 2, electricity
Road plate 3, transformer 4, radiator 5 and fan 6；Control panel 2 is mounted on the foreboard 11 of shell, and inside the shell, circuit board 3 is located at
The top of radiator 5, the metal-oxide-semiconductor 32 of circuit board 3 are attached to the upper surface of radiator 5, and transformer 4 is located at the lower section of radiator 5, wind
Fan 6 is arranged on the front end of radiator 5, and the back plate 12 of shell is provided with ventilation hole, the rear end frontage and airiness hole of radiator 5.
Based on above-mentioned structure, circuit board 3, radiator 5 and transformer 4 in the electronic load instrument of the utility model are erecting
Nogata is arranged from top to down upwards, such to be arranged such that the projected area of this kind of electronic load instrument in the horizontal plane is small, structure
It is compact, too big space need not be vacateed when in use to place, it is easy to use.Circuit board 3 is arranged on the top of radiator 5, when
Fan 6 toward radiator 5 dry when, the micronic dust in air is difficult to float on the circuit board 3 of the top of radiator 5, circuit board 3
Surface be not easy dust accumulation, reduce influence of the dust to the performance of circuit board 3.
In the present embodiment, metal-oxide-semiconductor 32 is in direct contact the upper surface of radiator 5, the rear end of radiator 5 and the back plate of shell
12 are connected using insulating trip, and back plate 12 is insulation board, and the front end of radiator 5 is connect with fan 6, in fan 6 and the bottom plate of shell
Supporting rack 51 is provided between 13.In the prior art, insulation spacer is provided between metal-oxide-semiconductor and radiator, to prevent MOS
Pipe is electrically connected with the external world.And in the utility model, metal-oxide-semiconductor 32 is in direct contact with radiator 5, and radiator 5 and back plate
12 link together, and back plate 12 is insulation board, also plays the effect of insulation.Meanwhile the front end of radiator 5 is connect with fan 6,
The shell of fan is also insulation, also plays the effect of insulation, supporting rack is provided between fan 6 and the bottom plate 13 of shell
51, to prevent 12 intensity of the back plate deficiency made of insulating materials, the support to radiator 5 and fan 6 is realized by supporting rack 51.
In the present solution, metal-oxide-semiconductor 32 is in direct contact with radiator 5, the heat of metal-oxide-semiconductor 32 can preferably pass to radiator 5, improve
Radiating efficiency.
In the present embodiment, multiple radiators 5 are provided in the electronic load instrument, multiple radiators 5 vertically arrange simultaneously
It is arranged on the lower section of circuit board 3.When the heat that the power of electronic load instrument is higher and generates is more, it is arranged in correspondence with more
Radiator 5, meanwhile, radiator 5 vertically arranges and is arranged on the lower section of circuit board 3, will not increase electronic load instrument in level
Projected area on face.
In the present embodiment, circuit board 3 is provided with the through-hole 31 of hollow out, and metal-oxide-semiconductor 32 is located in through-hole 31, from circuit board 3
On can observe directly the entire pin of metal-oxide-semiconductor 32 and metal-oxide-semiconductor 32.In the prior art, circuit board is located at radiator
Lower section, metal-oxide-semiconductor are covered by radiator, when metal-oxide-semiconductor damages, are needed first to remove radiator, be dismantled again after exposing metal-oxide-semiconductor
Metal-oxide-semiconductor, this so that the installation and removal of metal-oxide-semiconductor are complicated.In the present solution, circuit board 3 is provided with the through-hole 31 of hollow out, from circuit
The entire pin of metal-oxide-semiconductor 32 and metal-oxide-semiconductor 32 can be observed directly on plate 3, in this way, testing metal-oxide-semiconductor 32 by pin and tearing open
It is very convenient to unload replacement metal-oxide-semiconductor 32.
In the present embodiment, as shown in Figure 1, circuit board 3 is provided with polylith metal-oxide-semiconductor 32, a plurality of dissipate is provided in radiator 5
Hot flow path, every piece of metal-oxide-semiconductor 32 are located at the top of different radiating flow passages respectively.A plurality of heat dissipation is arranged in general radiator
Runner, this programme are separately positioned on each piece of metal-oxide-semiconductor 32 positioned at the top of different radiating flow passages, can fully utilize heat dissipation
Radiating flow passage in device 5 improves radiating efficiency.
In the present embodiment, as shown in Fig. 2, circuit board 3 is provided with current sampling resistor 33, current sampling resistor 33 is located at
In the front of the air intake of fan 6.Current sampling resistor 33 needs to keep the stabilization of temperature, its performance is just can ensure that, for this purpose, handle
Current sampling resistor 33 is arranged on the front of the air intake of fan 6, and current sampling resistor 33 can be cooled down well, protects
Demonstrate,prove the performance of current sampling resistor 33.
In the absence of conflict, the feature in above-mentioned embodiment and embodiment can be combined with each other.
It is to be appreciated that above to the description of specific embodiment of the utility model progress simply to illustrate that this practicality
Novel technology path and feature, its object is to allow those skilled in the art that can understand the content of the utility model simultaneously
Implement according to this, but the utility model is not limited to above-mentioned particular implementation.Every range in the utility model claims
The various change inside made or modification should all be covered within the protection scope of the present utility model.
Claims (6)
1. a kind of electronic load instrument, it is characterised in that：Including shell, control panel, circuit board, transformer, radiator and fan；
The control panel is mounted on the foreboard of the shell, and in the shell, the circuit board is located at the radiator
Top, the metal-oxide-semiconductor of the circuit board are attached to the upper surface of the radiator, and the transformer is located at the lower section of the radiator,
The fan is arranged on the front end of the radiator, and the back plate of the shell is provided with ventilation hole, the rear end court of the radiator
To the ventilation hole.
2. electronic load instrument according to claim 1, it is characterised in that：The metal-oxide-semiconductor is in direct contact the radiator
Upper surface, the rear end of the radiator are connect with the back plate of the shell using insulating trip, and the back plate is insulation board, described to dissipate
The front end of hot device is connect with fan, and supporting rack is provided between the fan and the bottom plate of shell.
3. electronic load instrument according to claim 1, it is characterised in that：Multiple heat dissipations are provided in the electronic load instrument
Device, the multiple radiator vertically arrange and are arranged on the lower section of the circuit board.
4. electronic load instrument according to claim 1, it is characterised in that：The through-hole of hollow out is provided on the circuit board,
The metal-oxide-semiconductor is located in the through-hole, and the metal-oxide-semiconductor and the metal-oxide-semiconductor can be observed directly from the circuit board
Entire pin.
5. electronic load instrument according to claim 4, it is characterised in that：The circuit board is provided with polylith metal-oxide-semiconductor, described
A plurality of radiating flow passage is provided in radiator, every piece of metal-oxide-semiconductor is located at the top of different radiating flow passages respectively.
6. electronic load instrument according to claim 1, it is characterised in that：The circuit board is provided with current sampling resistor,
The current sampling resistor is located in the front of the air intake of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721621533.7U CN207519007U (en) | 2017-11-28 | 2017-11-28 | A kind of electronic load instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721621533.7U CN207519007U (en) | 2017-11-28 | 2017-11-28 | A kind of electronic load instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207519007U true CN207519007U (en) | 2018-06-19 |
Family
ID=62541740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721621533.7U Active CN207519007U (en) | 2017-11-28 | 2017-11-28 | A kind of electronic load instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207519007U (en) |
-
2017
- 2017-11-28 CN CN201721621533.7U patent/CN207519007U/en active Active
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