CN206611338U - A kind of frequency changer - Google Patents
A kind of frequency changer Download PDFInfo
- Publication number
- CN206611338U CN206611338U CN201621278263.XU CN201621278263U CN206611338U CN 206611338 U CN206611338 U CN 206611338U CN 201621278263 U CN201621278263 U CN 201621278263U CN 206611338 U CN206611338 U CN 206611338U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- main circuit
- capacitor bank
- secondary circuit
- lower house
- 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
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Abstract
The utility model discloses a kind of frequency changer, including main circuit board, the upper surface of main circuit board is provided with one group of electrical equipment, is characterized in：Also include secondary circuit board, secondary circuit board is arranged on the downside of main circuit board and is arranged at intervals with main circuit board, and the downside of secondary circuit board is provided with capacitor bank, and capacitor bank is electrically connected with the electrical equipment on main circuit board by wire.The utility model sets capacitor bank on secondary circuit board, make its with other electrical equipments separately and opposite two faces in office, the cooling efficiency of capacitor bank can be improved, and other electrical equipments will not be impacted, while improving the service life of capacitor bank and other electrical equipments.
Description
Technical field
The utility model belongs to converter technology field, more particularly, to a kind of frequency changer.
Background technology
Frequency converter is to apply converter technique and microelectric technique.Frequency converter it is main by rectification (AC-DC), it is filtering, inverse
Become (direct current becomes exchange), brake unit, driver element, detection unit microprocessing unit etc. to constitute and set on circuit boards.It is whole
Stream (AC-DC), filtering need electricity container to realize, the effect of capacitor is to absorb the ripple current that inverter is produced,
The overshoot voltage for suppressing the switching process of the switching tube in inverter and producing, reduces dc bus impedance, therefore capacitor exists
It can be generated heat during use, cause the reduction of capacitor service life.Existing frequency converter its capacitor typically with other electric lists
Member is arranged on one piece of circuit board, and is arranged on other electric units on the same face of circuit board, due to other electric
The stop of unit makes the cooling of capacitor hindered, while the high temperature of capacitor can also influence the normal work of other electric units
Make so that the service life reduction of capacitor and other electric units.
The content of the invention
The purpose of this utility model is that it has for a kind of the not enough there is provided frequency changer of above-mentioned prior art presence
There is cooling efficiency high, the characteristics of service life is long.
To achieve these goals, the technical scheme that the utility model is used is：A kind of frequency changer, including main electricity
Road plate, the upper surface of the main circuit board is provided with one group of electrical equipment, in addition to secondary circuit board, and the secondary circuit board is arranged on
The downside of main circuit board is simultaneously arranged at intervals with main circuit board, and the downside of the secondary circuit board is provided with capacitor bank, the electricity
Container group is electrically connected with the electrical equipment on main circuit board by wire.
Also include housing, the housing is made up of the upper shell and lower house that mutually can be combined with splitting, the main circuit
Plate and secondary circuit board are separately mounted on the connecting pole of lower house；The side of the lower house is provided with air grid, it is described under
The remaining side of housing, which is provided with air outlet window, the air outlet window, is provided with dismountable air outlet grate plate, the air outlet grate
Dismountable air filter screen is installed on the inside of plate.
The radiator for frequency converter is provided with the lower house.
After said structure, the utility model is compared to the prior art advantageously：The utility model is by electricity
Container group is arranged on secondary circuit board, it separately and opposite two faces in office, can be improved capacitor with other electrical equipments
The cooling efficiency of group, and other electrical equipments will not be impacted, while improving capacitor bank and other electrically members
The service life of part；Induced draught fan and radiator can make the frequency converter fast cooling in work, prevent frequency converter from damaging, extension makes
Use the life-span.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of air outlet window, air outlet grate plate and induced draught fan.
Embodiment
As described below is only preferred embodiment of the present utility model, does not therefore limit protection model of the present utility model
Enclose, the utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment, as shown in Fig. 1 to Fig. 2：A kind of frequency changer, including main circuit board 1, the main circuit board 1 it is upper
End face is provided with one group of electrical equipment 2, in addition to secondary circuit board 3, and the secondary circuit board 3 is arranged on the downside of main circuit board 1 simultaneously
Set with the parallel interval of main circuit board 1, the downside of the secondary circuit board 3 is provided with capacitor bank 4, the capacitor bank 4 with
Electrical equipment 2 on main circuit board 1 is electrically connected by wire.
Also include housing, the housing is by mutually can be combined 5 groups of upper shell (accompanying drawing is not drawn into) and lower house with splitting
Into the main circuit board 1 and secondary circuit board 3 are separately mounted on the connecting pole 6 of lower house 5；The side of the lower house 5 is set
There is air grid 7, the remaining side of the lower house 5, which is provided with air outlet window 8, the air outlet window 8, to be provided with removably to go out
Style screen 9, the inner side of the air outlet grate plate 9 is provided with dismountable air filter screen 10.
It is provided with the lower house 5 on one group of electrical equipment 2 on main circuit of converter plate 1 and secondary circuit board 3
Capacitor bank 4 radiator 11, its fast cooling can be made.
The temperature detection alarm (accompanying drawing is not drawn into) of correspondence capacitor bank 4 is additionally provided with lower house 5, works as capacitor bank
When 4 temperature exceedes predetermined value, temperature detection alarm can send alarm, so as to remind operator to close frequency converter, prevent from becoming
Frequency device is damaged.
This is the electric unit in prior art frequency converter using new one group of described electrical equipment 2 and capacitor bank 4,
The principle and connected mode of one group of electrical equipment are same as the prior art, repeat no more here.
Claims (3)
1. a kind of frequency changer, including main circuit board (1), the upper surface of the main circuit board (1) be provided with one group it is electrically first
Part (2), it is characterised in that：Also include secondary circuit board (3), the secondary circuit board (3) be arranged on the downside of main circuit board (1) and with
Main circuit board (1) is arranged at intervals, and the downside of the secondary circuit board (3) is provided with capacitor bank (4), the capacitor bank (4)
Electrically connected with the electrical equipment (2) on main circuit board (1) by wire.
2. a kind of frequency changer according to claim 1, it is characterised in that：Also include housing, the housing is by mutual
Upper shell and lower house (5) with splitting can be combined to constitute, the main circuit board (1) and secondary circuit board (3) are separately mounted to down
On the connecting pole (6) of housing (5)；The side of the lower house (5) is provided with air grid (7), the residue of the lower house (5)
Side, which is provided with air outlet window (8), the air outlet window (8), is provided with dismountable air outlet grate plate (9), the air outlet grate plate
(9) induced draught fan (10) is installed on the inside of.
3. a kind of frequency changer according to claim 2, it is characterised in that：It is provided with and is directed in the lower house (5)
The radiator (11) of frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278263.XU CN206611338U (en) | 2016-11-25 | 2016-11-25 | A kind of frequency changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278263.XU CN206611338U (en) | 2016-11-25 | 2016-11-25 | A kind of frequency changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206611338U true CN206611338U (en) | 2017-11-03 |
Family
ID=60172237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621278263.XU Expired - Fee Related CN206611338U (en) | 2016-11-25 | 2016-11-25 | A kind of frequency changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206611338U (en) |
-
2016
- 2016-11-25 CN CN201621278263.XU patent/CN206611338U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20201125 |