CN207678145U - A kind of micro power modular structure - Google Patents
A kind of micro power modular structure Download PDFInfo
- Publication number
- CN207678145U CN207678145U CN201820023204.0U CN201820023204U CN207678145U CN 207678145 U CN207678145 U CN 207678145U CN 201820023204 U CN201820023204 U CN 201820023204U CN 207678145 U CN207678145 U CN 207678145U
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- China
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- circuit board
- pcb circuit
- insulation sleeve
- boss
- bottom case
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Abstract
The utility model discloses a kind of micro power modular structures, belong to power module technical field.It includes bottom case, insulation sleeve, PCB circuit board, fixed screw, upper cover, the bottom case is the metal shell of upper opening, the bottom surface four corners of bottom case are equipped with the boss higher than bottom surface, the insulation sleeve is sleeved on PCB circuit board both ends, the part that insulation sleeve is cased in PCB circuit board is placed on boss, the fixed screw passes through insulation sleeve, PCB circuit board, is fixed with boss, and the upper cover is by closure of openings on bottom case.By being arranged insulation sleeve in PCB circuit board, the creepage distance between original PCB circuit board component and screw terminal, boss is increased, the safety of power module is improved.
Description
Technical field
The utility model is related to a kind of micro power modular structures, belong to power module technical field.
Background technology
Micro power modular structure, its size is small, and power is big, widely used.Since micro power modular structure volume limits
System, can not optional equipment radiator, therefore, micro power modular structure generally use the preferable metal shell of heat dissipation effect.
To meet security requirement, isolation module transformer primary side electric conductor is to the secondary electric conductor in electric conductor, former pair to machine
Shell is both needed to meet safety required distance；Micromodule is since dimensional space is small, the safety zone around PCB circuit board upper installing hole
Domain, i.e. electric conductor are small as far as possible at a distance from mounting hole, can retain the PCB circuit board face of setting more multicomponent device
Product.Safe area around PCB circuit board upper installing hole is small as far as possible, and more components can be arranged.In order to abundant
Using the area of PCB circuit board, a kind of PCB circuit board fixed structure of tape insulation set is designed, it can not change original PCB
On the basis of circuit board element distribution, increases creepage distance, ensure the safety of power module.
Invention content
The technical problem to be solved by the utility model is to：A kind of micro power modular structure is provided, it solves increasing
The problem of adding the creepage distance between original PCB circuit board component and screw terminal, boss, improving the safety of power module.
Technical problem to be solved in the utility model takes following technical scheme to realize：
A kind of micro power modular structure, it includes bottom case, insulation sleeve, PCB circuit board, fixed screw, upper cover, the bottom
Shell is the metal shell of upper opening, and the bottom surface four corners of bottom case are equipped with the boss higher than bottom surface, and the insulation sleeve is sleeved on PCB circuits
The part that insulation sleeve is cased in PCB circuit board is placed on boss by plate both ends, and the fixed screw passes through insulation sleeve, PCB circuits
Plate is fixed with boss, and the upper cover is by closure of openings on bottom case.
As preferred embodiment, the insulation sleeve is made of four gaskets and a connection strap, and four gaskets are divided into two groups, often
Two gaskets of group are individually placed to the upper and lower surface of PCB circuit board mounting hole, and connection strap is placed on PCB circuit board side, and connection strap will
Two groups of gaskets link together.Insulation sleeve is molded by plastic material integral production.
The utility model has the beneficial effects that：By being arranged insulation sleeve in PCB circuit board, original PCB circuits are increased
Creepage distance between board component and screw terminal, boss improves the safety of power module.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of insulation sleeve in the utility model；
Fig. 3 is the structural schematic diagram that insulation sleeve is not arranged for power module；
Fig. 4 is the structural schematic diagram that power module is provided with insulation sleeve.
In figure：Bottom case 1, insulation sleeve 2, PCB circuit board 3, fixed screw 4, upper cover 5, boss 6, gasket 21, connection strap 22,
Component 7.
Specific implementation mode
In order to which the technical means, creative features, achievable purpose and effectiveness to the utility model are easy to understand, tie below
Conjunction is specifically illustrating, and the utility model is expanded on further.
As shown in Figure 1 and Figure 2, a kind of micro power modular structure, it includes bottom case 1, insulation sleeve 2, PCB circuit board 3, consolidates
Determine screw 4, upper cover 5, bottom case 1 is the metal shell of upper opening, and the bottom surface four corners of bottom case 1 are equipped with the boss 6 higher than bottom surface, absolutely
Edge set 2 is sleeved on 3 both ends of PCB circuit board, the part that insulation sleeve 2 is cased in PCB circuit board 3 is placed on boss 6, fixed screw 4
It across insulation sleeve 2, PCB circuit board 3, is fixed with boss 6, upper cover 5 is by closure of openings on bottom case 1.
Insulation sleeve 2 is made of four gaskets 21 and a connection strap 22, and it is two groups that four gaskets 21, which are divided to, every group of two gaskets
21 are individually placed to the upper and lower surface of 3 mounting hole of PCB circuit board, and connection strap 22 is placed on 3 side of PCB circuit board, and connection strap 22 is by two
Group gasket 21 links together.Insulation sleeve 2 is molded by plastic material integral production.
As shown in figure 3, when insulation sleeve 2 is not arranged for PCB circuit board 3,3 component 7 of PCB circuit board and screw terminal, boss 6 it
Between creepage distance it is shorter.Creepage distance refers to the distance between two conductive parts measured along insulating surface.Thick line portion
Creepage distance before indicating to improve.
As shown in figure 4, after insulation sleeve 2 is arranged in PCB circuit board 3, between 3 component 7 of PCB circuit board and screw terminal, boss 6
Creepage distance obviously increased.Thick line portion indicates improved creepage distance.
By being arranged insulation sleeve 2 in PCB circuit board 3,3 component 7 of original PCB circuit board and screw terminal, convex are increased
Creepage distance between platform 6 improves the safety of power module.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention and
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within the utility model and want
In the range of asking protection.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (2)
1. a kind of micro power modular structure, it is characterised in that：It include bottom case, insulation sleeve, PCB circuit board, fixed screw, on
Lid, the bottom case are the metal shell of upper opening, and the bottom surface four corners of bottom case are equipped with the boss higher than bottom surface, the insulation sleeve set
At PCB circuit board both ends, the part that insulation sleeve is cased in PCB circuit board is placed on boss, the fixed screw passes through insulation
Set, PCB circuit board, are fixed with boss, and the upper cover is by closure of openings on bottom case.
2. a kind of micro power modular structure according to claim 1, it is characterised in that：The insulation sleeve by four gaskets and
One connection strap composition, four gaskets are divided into two groups, and every group of two gaskets are individually placed to the upper following table of PCB circuit board mounting hole
Face, connection strap are placed on PCB circuit board side, and connection strap links together two groups of gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023204.0U CN207678145U (en) | 2018-01-08 | 2018-01-08 | A kind of micro power modular structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023204.0U CN207678145U (en) | 2018-01-08 | 2018-01-08 | A kind of micro power modular structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207678145U true CN207678145U (en) | 2018-07-31 |
Family
ID=62973384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820023204.0U Active CN207678145U (en) | 2018-01-08 | 2018-01-08 | A kind of micro power modular structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207678145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994949A (en) * | 2019-11-13 | 2020-04-10 | 北京机械设备研究所 | Power module installed part and module power |
-
2018
- 2018-01-08 CN CN201820023204.0U patent/CN207678145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994949A (en) * | 2019-11-13 | 2020-04-10 | 北京机械设备研究所 | Power module installed part and module power |
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