CN202931178U - Low stray inductance power module adopting rigid insulating plate for convergence - Google Patents
Low stray inductance power module adopting rigid insulating plate for convergence Download PDFInfo
- Publication number
- CN202931178U CN202931178U CN 201220626559 CN201220626559U CN202931178U CN 202931178 U CN202931178 U CN 202931178U CN 201220626559 CN201220626559 CN 201220626559 CN 201220626559 U CN201220626559 U CN 201220626559U CN 202931178 U CN202931178 U CN 202931178U
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- laminated bus
- stray inductance
- rigid insulation
- insulation plate
- low stray
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Abstract
The utility model relates to the technical field of an inductance power module, in particular to a low stray inductance power module adopting a rigid insulating plate for convergence. The low stray inductance power module comprises a plurality of power devices, laminated bus boards and a plurality of capacitors connected to the laminated bus boards, wherein each laminated bus board comprises an anode layer, a cathode layer and an insulating layer, the insulating layers are arranged between the anode layers and the cathode layers, and the insulating layers are made of PCB materials. The PCB materials are adopted as the insulating layers of the laminated bus boards, since the PCB materials has the characteristics of good hardness and strength, the upper and lower layers of the buses are prevented from deforming caused by the mechanical stress, and the power module is ensured to have low inductance coefficient and low impedance.
Description
Technical field
The application relates to electric inductance power building block technique field, particularly a kind of low stray inductance power model that adopts the rigid insulation plate to conflux.
Background technology
Power electronics uses more and more extensive in our life, and the fields such as industrial frequency transformer, inverter, wind power generation, ups system, electric welding machine all are widely used.Traditional power model DC side both positive and negative polarity all adopts copper bar or wire directly to be connected with energy storage device, power device and absorption plant etc.This just causes power model inside to have higher stray inductance, makes power model bear larger peak-inverse voltage in switching process.
The method that tradition reduces stray inductance is generally the laminated bus structure that adopts positive and negative busbar to consist of.This kind method is had relatively high expectations to processing technology, complex structure and exist the levels busbar easily to produce the situation of distortion due to mechanical stress, in case distortion occurs, stray inductance can obviously improve.
Summary of the invention
The application's purpose is the technical problem for above-mentioned existence, and the low random thoughts power model that can avoid the laminated bus distortion is provided.
Provide a kind of low stray inductance power model that adopts the rigid insulation plate to conflux for this reason, comprise some power devices, laminated bus plate and be connected in some electric capacity of laminated bus plate, described laminated bus plate comprises anodal layer, negative electrode layer and do not follow anodal layer or the rigid insulation plate of negative electrode layer distortion, and described rigid insulation plate is located between described anodal layer and negative electrode layer.
Wherein, described rigid insulation plate is PCB.
Wherein, anodal copper bar, negative pole copper bar are arranged, described power device is connected to positive pole and the negative pole of laminated bus plate by anodal copper bar, negative pole copper bar.
Wherein, be provided with radiator, described power device is fixed in described radiator.
Wherein, described laminated bus plate is fixed by bolt and described radiator.
Wherein, described bolt is hexagonal copper post, and described laminated bus plate connects anodal copper bar, negative pole copper bar with hexagonal copper post as conductor.
Beneficial effect: adopt the rigid insulation plate as the insulating barrier of laminated bus, characteristic due to the rigid insulation plate, its intensity and hardness are better, and the situation of avoiding the levels busbar to be out of shape due to mechanical stress has guaranteed that power model has low inductance coefficent, Low ESR.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not consist of any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is a kind of structural representation that adopts the low stray inductance power model that the rigid insulation plate confluxes.
Fig. 2 is partial structurtes schematic diagram of the present utility model.
Fig. 3 is the structural representation of laminated bus plate of the present utility model.
Reference numeral:
1-laminated bus plate, the anodal layer of 11-, 12-rigid insulation plate, 13-negative electrode layer, 2-power device, the anodal copper bar of 3-, 4-negative pole copper bar, 5-bolt, 6-electric capacity, 7-radiator.
Embodiment
With the following Examples the utility model is further described.
A kind of embodiment that adopts the low stray inductance power model that the rigid insulation plate confluxes of the present utility model, as shown in Figure 1, comprise some power devices 2, laminated bus plate 1 and be connected in some electric capacity 6 of laminated bus plate 1, described laminated bus plate 1 comprises anodal layer 11, negative electrode layer 13 and do not follow anodal layer 11 or the rigid insulation plate 12 of negative electrode layer 12 distortion, and described rigid insulation plate 12 is located between described anodal layer 11 and negative electrode layer 13.
Adopt the rigid insulation plate as the insulating barrier of laminated bus, due to the characteristic of rigid insulation plate 12, its intensity and hardness are better, and the situation of avoiding the levels busbar to be out of shape due to mechanical stress has guaranteed that power model has low inductance coefficent, Low ESR.
Particularly, described rigid insulation plate 12 is PCB.
Be provided with anodal copper bar 3, negative pole copper bar 4, described power device 2 is connected to positive pole and the negative pole of laminated bus plate by anodal copper bar 3, negative pole copper bar 4, can simplify installation steps, reduces workflow, reduces costs.
Be provided with radiator 7, described power device 2 is fixed in described radiator 7, reduces in time the temperature of power device 2 by radiator 7, the normal operation of guaranteed output device 2.
Described laminated bus plate 1 is fixing with described radiator 7 by bolt 5.
Wherein, described bolt 5 is hexagonal copper post, and described laminated bus plate 1 connects anodal copper bar 3, negative pole copper bar 4 by hexagonal copper post as conductor.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection range; although with reference to preferred embodiment, the utility model has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (6)
1. low stray inductance power model that adopts the rigid insulation plate to conflux, it is characterized in that, comprise some power devices, laminated bus plate and be connected in some electric capacity of laminated bus plate, described laminated bus plate comprises anodal layer, negative electrode layer and do not follow anodal layer or the rigid insulation plate of negative electrode layer distortion, and described rigid insulation plate is located between described anodal layer and negative electrode layer.
2. a kind of low stray inductance power model that adopts the rigid insulation plate to conflux according to claim 1, is characterized in that, described rigid insulation plate is PCB.
3. a kind of low stray inductance power model that adopts the rigid insulation plate to conflux according to claim 1, is characterized in that anodal copper bar, negative pole copper bar are arranged, and described power device is connected to positive pole and the negative pole of laminated bus plate by anodal copper bar, negative pole copper bar.
4. a kind of low stray inductance power model that adopts the rigid insulation plate to conflux according to claim 1, is characterized in that, be provided with radiator, described power device is fixed in described radiator.
5. a kind of low stray inductance power model that adopts the rigid insulation plate to conflux according to claim 4, is characterized in that, described laminated bus plate is fixed by bolt and described radiator.
6. a kind of low stray inductance power model that adopts the rigid insulation plate to conflux according to claim 5, is characterized in that, described bolt is hexagonal copper post, and described laminated bus plate connects anodal copper bar, negative pole copper bar with hexagonal copper post as conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626559 CN202931178U (en) | 2012-11-23 | 2012-11-23 | Low stray inductance power module adopting rigid insulating plate for convergence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626559 CN202931178U (en) | 2012-11-23 | 2012-11-23 | Low stray inductance power module adopting rigid insulating plate for convergence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931178U true CN202931178U (en) | 2013-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220626559 Expired - Lifetime CN202931178U (en) | 2012-11-23 | 2012-11-23 | Low stray inductance power module adopting rigid insulating plate for convergence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928498A (en) * | 2019-12-05 | 2021-06-08 | 深圳市高科润电子有限公司 | Novel connecting mechanism of electric control system capacitor module and power module |
| CN112930046A (en) * | 2019-12-05 | 2021-06-08 | 深圳市高科润电子有限公司 | Electric automobile electrical apparatus controller |
-
2012
- 2012-11-23 CN CN 201220626559 patent/CN202931178U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928498A (en) * | 2019-12-05 | 2021-06-08 | 深圳市高科润电子有限公司 | Novel connecting mechanism of electric control system capacitor module and power module |
| CN112930046A (en) * | 2019-12-05 | 2021-06-08 | 深圳市高科润电子有限公司 | Electric automobile electrical apparatus controller |
| CN112930046B (en) * | 2019-12-05 | 2022-05-17 | 深圳市高科润电子有限公司 | Electric automobile electrical apparatus controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |