CN209266202U - A kind of power electronics thin film capacitor - Google Patents
A kind of power electronics thin film capacitor Download PDFInfo
- Publication number
- CN209266202U CN209266202U CN201821298364.2U CN201821298364U CN209266202U CN 209266202 U CN209266202 U CN 209266202U CN 201821298364 U CN201821298364 U CN 201821298364U CN 209266202 U CN209266202 U CN 209266202U
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- China
- Prior art keywords
- film layer
- capacitor
- power electronics
- thin film
- layer
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of power electronics thin film capacitors, including outer box film layer, the sub- end of capacitor main core and outer cap rock；The sub- end of capacitor main core is made of central dielectric and metallic conduction film layer；It is provided with insulating film layer and aluminium tinfoil paper film layer between every layer of metallic conduction film layer, and passes through extraction wire connection electrode in aluminium tinfoil paper film level；Pressure filling slot is provided between the central dielectric and outer cap rock, outer box film layer；The utility model power electronics thin film capacitor ensures to play overload protective function when instantaneous high-frequency current passes through and reduces its loss value by metal electric fuse; increase its capacitor stability and service life; it designs reasonable; structure process is simple; insulation resistance is high; medium absorption coefficient is low, and safety coefficient is high, is suitble to be widely popularized.
Description
Technical field
The utility model relates to a kind of power electronics thin film capacitors, more particularly to one kind to play to instantaneous high-frequency current
The power electronics thin film capacitor of overload protective function；Belong to capacitor technology field.
Background technique
Capacitor, usually referred to as its ability for accommodating charge is capacitor, is a kind of device for accommodating charge.Capacitor is electricity
One of the electronic component largely used in sub- equipment, the separated by direct communication being widely used in circuit couple, and bypass, and filter, tuning
Circuit, energy conversion, control etc..Its structure is simple, and any two are insulated from each other and the conductor that is spaced closely together (including is led
Line) between all constitute a capacitor.Capacitor is many kinds of currently on the market, and thin film capacitor is exactly one of, but because of it
The reasons such as small in size constrain the carrying range of many components and cause functionality more tired, main to cash, Jie low in resistance
Safety coefficient caused by matter absorption coefficient is high is low, service performance difference etc..
Summary of the invention
(1) technical problems to be solved
A kind of in order to solve the above problems, the utility model proposes power electronics thin film capacitor.
(2) technical solution
The power electronics thin film capacitor of the utility model, including outer box film layer, the sub- end of capacitor main core and outer cap rock；Institute
The sub- end of capacitor main core stated is made of central dielectric and metallic conduction film layer；It is set between every layer of metallic conduction film layer
It is equipped with insulating film layer and aluminium tinfoil paper film layer, and passes through extraction wire connection electrode in aluminium tinfoil paper film level；The center
Pressure filling slot is provided between dielectric and outer cap rock, outer box film layer.
Further, latticed metal electric fuse is provided between the metallic conduction film layer and insulating film layer.
Further, the internal electrode outer surface is provided with silver-colored film layer.
Further, the dielectric is polypropylene screen, and outer box film layer and outer cap rock use ceramic material, insulating film
Layer is polyurethane adhesive material with pressure filling slot.
(3) beneficial effect
Compared with the prior art, the utility model has the following beneficial effects: the power electronics of the utility model is thin
Membrane capacitance ensures to play overload protective function when instantaneous high-frequency current passes through and reduces its damage by metal electric fuse
Consumption value increases its capacitor stability and service life, and rationally, structure process is simple for design, and insulation resistance is high, Absorption of Medium
Coefficient is low, and safety coefficient is high, is suitble to be widely popularized.
Detailed description of the invention
Fig. 1 is the whole axis geodesic structure schematic diagram of the utility model.
Fig. 2 is the sub- end complete section structural schematic diagram of the utility model capacitor main core.
Fig. 3 is the structural schematic diagram of the utility model metallic conduction film layer.
The sub- end of 1- capacitor main core；2- metallic conduction film layer；3- insulating film layer；301- metal electric fuse；4- electrode；5-
Silver-colored film layer；6- outer box film layer；The outer cap rock of 7-；8- pressure filling slot；9- extraction wire；10- aluminium tinfoil paper film layer；The center 11-
Dielectric.
Specific embodiment
A kind of power electronics thin film capacitor as shown in drawings, including the sub- end 1 of outer box film layer 6, capacitor main core and outer
Cap rock 7；The sub- end 1 of the capacitor main core is made of central dielectric 11 and metallic conduction film layer 2；Every layer of metal is led
It is provided with insulating film layer 3 and aluminium tinfoil paper film layer 10 between electrolemma layer 2, and passes through extraction wire 9 in 10 face of aluminium tinfoil paper film layer
Connection electrode 4；Pressure filling slot 8 is provided between the central dielectric 11 and outer cap rock 7, outer box film layer 6.
Wherein, latticed metal electric fuse 301 is provided between the metallic conduction film layer 2 and insulating film layer 3；Institute
4 outer surface of internal electrode stated is provided with silver-colored film layer 5；The dielectric 11 is polypropylene screen, outer box film layer 6 and outer cover
Layer 7 uses ceramic material, and insulating film layer 3 and pressure filling slot 8 are polyurethane adhesive material.
The power electronics thin film capacitor of the utility model ensures to pass through in instantaneous high-frequency current by metal electric fuse
When play overload protective function and reduce its loss value, increase its capacitor stability and service life, design rationally, knot
Structure simple process, insulation resistance is high, and medium absorption coefficient is low, and safety coefficient is high, is suitble to be widely popularized.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, it is all described in the claims.
Claims (4)
1. a kind of power electronics thin film capacitor, it is characterised in that: including outer box film layer (6), the sub- end of capacitor main core (1) and outer
Cap rock (7)；The sub- end of capacitor main core (1) is made of central dielectric (11) and metallic conduction film layer (2)；Described is every
Insulating film layer (3) and aluminium tinfoil paper film layer (10), and aluminium tinfoil paper film layer (10) face are provided between layer metallic conduction film layer (2)
It is interior to pass through extraction wire (9) connection electrode (4)；Between the central dielectric (11) and outer cap rock (7), outer box film layer (6)
It is provided with pressure filling slot (8).
2. power electronics thin film capacitor according to claim 1, it is characterised in that: the metallic conduction film layer (2)
Latticed metal electric fuse (301) is provided between insulating film layer (3).
3. power electronics thin film capacitor according to claim 1, it is characterised in that: described internal electrode (4) appearance
Face is provided with silver-colored film layer (5).
4. power electronics thin film capacitor according to claim 1, it is characterised in that: the dielectric (11) is poly- third
Alkene film, outer box film layer (6) and outer cap rock (7) use ceramic material, and insulating film layer (3) and pressure filling slot (8) are polyurethane
Glue material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298364.2U CN209266202U (en) | 2018-08-13 | 2018-08-13 | A kind of power electronics thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298364.2U CN209266202U (en) | 2018-08-13 | 2018-08-13 | A kind of power electronics thin film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209266202U true CN209266202U (en) | 2019-08-16 |
Family
ID=67557510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821298364.2U Expired - Fee Related CN209266202U (en) | 2018-08-13 | 2018-08-13 | A kind of power electronics thin film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209266202U (en) |
-
2018
- 2018-08-13 CN CN201821298364.2U patent/CN209266202U/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: 20190816 Termination date: 20200813 |