CN206619506U - A kind of high-capacity cylindrical capacitor - Google Patents
A kind of high-capacity cylindrical capacitor Download PDFInfo
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- CN206619506U CN206619506U CN201720216902.8U CN201720216902U CN206619506U CN 206619506 U CN206619506 U CN 206619506U CN 201720216902 U CN201720216902 U CN 201720216902U CN 206619506 U CN206619506 U CN 206619506U
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- capacitor
- positioning sleeve
- capacitor body
- cap
- shell
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Abstract
The utility model discloses a kind of high-capacity cylindrical capacitor, including shell, the cap being adapted with shell, exit on cap, located at the capacitor body of enclosure, it is poured in the potting compound between shell and capacitor body, the outer casing inner wall surface is provided with insulation PET film, the capacitor body it is upper, lower two ends are respectively fixed with positioning sleeve and lower positioning sleeve, capacitor body passes through upper positioning sleeve, lower positioning sleeve, insulate PET film and potting compound and casing insulation, the lower surface of cap is provided with explosion-proof block, the lower surface of explosion-proof block is provided with discharge resistance, discharge resistance is connected by lead with capacitor body.Individual capacity of the present utility model can reach 60kvar（Power capacitor）Or the μ f of 1200V 3000（Direct current capacitors）, have than existing product than larger raising, while having, properties of product are excellent, the low advantage of crash rate.
Description
Technical field
The utility model is related to a kind of capacitor, more particularly, to a kind of high-capacity cylindrical capacitor.
Background technology
Cylindrical shell is the common packing forms of thin film capacitor, and this capacitor is mainly used in motor starting and fortune
Turn, the filtering of Power Systems factor compensation, electric power system alternating current, DC energy storage, the occasion such as DC filtering.According to actual use
Occasion it is different, the rated voltage and rated capacity of cylindrical film capacitor are also different.For power capacitor,
Rated capacity generally represents that unit is kvar with the reactive power of its own（Kilovar）, rated capacity is bigger, the chi of capacitor
It is very little bigger.For motor capacitor and direct current capacitors, rated capacity is represented with the capacitance of its own, single
Position is μ f（Microfarad）, under same nominal voltage, capacitance is bigger, and the size of capacitor is bigger.
For power capacitor and direct current capacitors, products with larger capacity is often used.But it is due to be limited by technique
System, cylindrical power capacitor maximum can only accomplish 40kvar, and direct current capacitors maximum can only accomplish 1200V-1400 μ f.This
When can only be used in parallel with many capacitors, capacitor is installed and wiring is inconvenient, and the space taken in a device is also compared
Greatly.
The fuse of cylindrical capacitor is formed by double-layer metallization film superposition winding, is then refilled outside cylinder
Capacitor is packaged into shell.The capacitor body diameter of Large Copacity can be very big, can be wound now with some new up- coilers
Diameter can also reach φ 135mm, but fuse it is big to a certain extent after, it may appear that elastic inconsistent situation, cause electric capacity
The dielectric strength skewness of device, therefore the crash rate of the capacitor of Large Copacity is higher.
Utility model content
The utility model be in order to solve the above-mentioned technical problem present in the cylindrical capacitor of prior art there is provided
One kind has that individual capacity is big, properties of product are excellent, the high-capacity cylindrical capacitor of the low advantage of crash rate.
To achieve these goals, the utility model uses following technical scheme：
A kind of high-capacity cylindrical capacitor, including shell, the cap being adapted with shell, the extraction on cap
End, the capacitor body located at enclosure, the potting compound being poured between shell and capacitor body, the outer casing inner wall table
Face is respectively fixed with positioning sleeve and lower positioning sleeve, capacitor provided with insulation PET film, the upper/lower terminal of the capacitor body
Fuse is provided with explosion-proof block by upper positioning sleeve, lower positioning sleeve, insulation PET film and potting compound and casing insulation, the lower surface of cap,
The lower surface of explosion-proof block is provided with discharge resistance, and discharge resistance is connected by lead with capacitor body.Shell in the utility model
Diameter aluminum shell can be used, exit can be brass bolt, have bipolar, three poles, quadrupole, adapt to various application scenarios, Er Qieke
With by very high current, wiring firmly, connection that can be with very heavy gauge wire；Upper positioning sleeve, lower positioning sleeve can ensure capacitor body
Position will not shake；Explosion-proof block can drive capacitor from grid disruption in capacitor failure；List of the present utility model
Platform capacity can reach 60kvar（Power capacitor）Or 1200V-3000 μ f（Direct current capacitors）, have than existing product than larger
Raising, while having, properties of product are excellent, the low advantage of crash rate.
Preferably, the capacitor body is formed after being laminated the metallized film added on sticking plaster core through two.
Capacitor body is the tension winding using change, and Tensity size is final according to thickness, width, the fuse of film used
Diameter it is different, from 0.25kg to 1.85kg.
Preferably, the metallized film is to be deposited after layer of metal coating to be formed on polypropylene film.
Preferably, the section of the upper positioning sleeve, lower positioning sleeve is in concave, above and below upper positioning sleeve, lower positioning sleeve
It is oppositely arranged.
Preferably, the potting compound is capacitor wax or pitch.
Preferably, the exit is externally provided with transparent protective cover.
Therefore, the utility model has the advantages that：Individual capacity of the present utility model can reach 60kvar（Electricity
Power capacitor）Or 1200V-3000 μ f（Direct current capacitors）, have than existing product than larger raising, while having properties of product
The low advantage of excellent, crash rate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of winding schematic diagram of capacitor body in the utility model.
Fig. 3 is the profile along A-A directions in Fig. 2.
In figure：Protective cover 1, exit 2, cap 3, explosion-proof block 4, discharge resistance 5, upper positioning sleeve 6, insulate PET film 7, fills
Envelope material 8, capacitor body 9, shell 10, lower positioning sleeve 11, sticking plaster core 12, metallized film 13, the coat of metal 14, polypropylene
Film 15.
Embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
A kind of high-capacity cylindrical capacitor as shown in Figure 1, including shell 10, be adapted with shell cap 3, be located at
Exit 2 on cap, the capacitor body 9 located at enclosure, the potting compound 8 being poured between shell and capacitor body
（Capacitor wax is used in the present embodiment）, exit, which is externally provided with capacitor body in transparent protective cover 1, the present embodiment, has 6
Individual, capacitor body is formed after being laminated the metallized film 13 added on sticking plaster core 12 through two（See Fig. 2）, metallize thin
Film is to be deposited after layer of metal coating 14 to be formed on polypropylene film 15（See Fig. 3）, outer casing inner wall surface is provided with insulation PET film
7, the upper/lower terminal of capacitor body is respectively fixed with positioning sleeve 6 and lower positioning sleeve 11, upper positioning sleeve, section of lower positioning sleeve
Face is in concave, is oppositely arranged above and below upper positioning sleeve, lower positioning sleeve, and capacitor body passes through upper positioning sleeve, lower positioning sleeve, absolutely
Edge PET film and potting compound and casing insulation, the lower surface of cap are provided with explosion-proof block 4, and the lower surface of explosion-proof block is provided with discharge resistance
5, discharge resistance is connected by lead with capacitor body.
The utility model preparation method is as follows：Layer of metal coating is deposited on polypropylene film and obtains metallized film
Afterwards, two layers of metallized film are superimposed and be wound up on a plastics plug, form a capacitor body；By six electricity
After the welding combination of container fuse, it is fitted into capacitor case, capacitor body passes through upper positioning sleeve, lower positioning sleeve, insulation PET
Film and casing insulation；Explosion-proof block and discharge resistance be then installed under cap, three brass bolts are assembled as drawing in the top of shell
Go out end, a transparent protective cover is set in the outer mask of exit；The above-mentioned capacitor assembled is put into vacuum reservoir and carried out
Application of vacuum, the temperature of application of vacuum is 60~105 DEG C, and vacuum is≤15Pa, and the time is 18 ~ 26 hours；Application of vacuum knot
After beam, capacitor wax is filled into inside capacitor case to play protection and thermolysis by the embedding hole on exit,
Finally embedding hole is shut with scolding tin, a capacitor finished product is become after being tested through over cleaning.
Individual capacity of the present utility model can reach 60kvar（Power capacitor）Or 1200V-3000 μ f（DC capacitor
Device）, have than existing product than larger raising, while having, properties of product are excellent, the low advantage of crash rate.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure transformation made according to the utility model technical spirit to above example, still
Belong to the protection domain of technical solutions of the utility model.
Claims (6)
1. a kind of high-capacity cylindrical capacitor, including shell（10）, the cap that is adapted with shell（3）, on cap
Exit（2）, located at the capacitor body of enclosure（9）, the potting compound that is poured between shell and capacitor body（8）,
Characterized in that, the outer casing inner wall surface is provided with insulation PET film（7）, the upper/lower terminal of the capacitor body fixes respectively
There is upper positioning sleeve（6）And lower positioning sleeve（11）, capacitor body passes through upper positioning sleeve, lower positioning sleeve, insulate PET film and potting compound
With casing insulation, the lower surface of cap is provided with explosion-proof block（4）, the lower surface of explosion-proof block is provided with discharge resistance（5）, discharge resistance lead to
Lead is crossed to be connected with capacitor body.
2. a kind of high-capacity cylindrical capacitor according to claim 1, it is characterised in that the capacitor core is through two layers
The metallized film of superposition（13）Wound on sticking plaster core（12）Formed after upper.
3. a kind of high-capacity cylindrical capacitor according to claim 2, it is characterised in that the metallized film be
Polypropylene film（15）Upper evaporation layer of metal coating（14）After formed.
4. a kind of high-capacity cylindrical capacitor according to claim 1, it is characterised in that the upper positioning sleeve, lower fixed
The section of position set is in be oppositely arranged above and below concave, upper positioning sleeve, lower positioning sleeve.
5. a kind of high-capacity cylindrical capacitor according to claim 1, it is characterised in that the potting compound is capacitor
Wax or pitch.
6. a kind of high-capacity cylindrical capacitor according to claim 1, it is characterised in that the exit is externally provided with
Bright protective cover（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216902.8U CN206619506U (en) | 2017-03-07 | 2017-03-07 | A kind of high-capacity cylindrical capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216902.8U CN206619506U (en) | 2017-03-07 | 2017-03-07 | A kind of high-capacity cylindrical capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206619506U true CN206619506U (en) | 2017-11-07 |
Family
ID=60231968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720216902.8U Active CN206619506U (en) | 2017-03-07 | 2017-03-07 | A kind of high-capacity cylindrical capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206619506U (en) |
-
2017
- 2017-03-07 CN CN201720216902.8U patent/CN206619506U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210309 Address after: 314100 Building 1, NO.666 Nanxing Road, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Yongjin capacitor Co.,Ltd. Address before: No. 508, Dongye Road, Dongjing Town, Songjiang District, Shanghai, 201619 Patentee before: SHANGHAI YONGJIN ELECTRIC GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |