CN112768240A - Metallized film capacitor with electromagnetic compatibility - Google Patents
Metallized film capacitor with electromagnetic compatibility Download PDFInfo
- Publication number
- CN112768240A CN112768240A CN202011526550.9A CN202011526550A CN112768240A CN 112768240 A CN112768240 A CN 112768240A CN 202011526550 A CN202011526550 A CN 202011526550A CN 112768240 A CN112768240 A CN 112768240A
- Authority
- CN
- China
- Prior art keywords
- pin
- casing
- metallized film
- film capacitor
- access panel
- 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.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 48
- 239000011104 metalized film Substances 0.000 title claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000741 silica gel Substances 0.000 claims abstract description 14
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 9
- 239000010408 film Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 229910001245 Sb alloy Inorganic materials 0.000 claims description 3
- 239000002140 antimony alloy Substances 0.000 claims description 3
- GVFOJDIFWSDNOY-UHFFFAOYSA-N antimony tin Chemical group [Sn].[Sb] GVFOJDIFWSDNOY-UHFFFAOYSA-N 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000005871 repellent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses an electromagnetic-compatible metallized film capacitor, which comprises a shell, wherein a capacitor element is arranged in the shell, pins are fixedly arranged on two sides of the top surface of the shell in a penetrating manner, the bottom ends of the pins extend into the shell, the two pins are respectively connected with the positive electrode and the negative electrode of the capacitor element, positioning blocks are fixed on two sides of the outer surface of each pin, the positioning blocks are embedded in the top surface of the shell, a positioning ring is sleeved at the bottom end of each pin and is screwed with the corresponding pin through threads, the positioning ring is used for limiting the bottom ends of the pins in the shell, an insulating silica gel pad is arranged on the top surface of the positioning ring, and the; through establishing the holding ring in the pin bottom with adding, when changeing the immobile holding ring, the holding ring top surface tightly is connected with the casing through insulating silica gel pad to with the restriction of holding ring bottom firmly in the casing, the pin is plug many times, also can not become flexible, has ensured the normal operating of condenser.
Description
Technical Field
The present invention relates to capacitors, and more particularly to metallized film capacitors for electromagnetic compatibility.
Background
An electromagnetic compatibility capacitor is a device for containing electric charges, and the electromagnetic compatibility capacitor is one of electronic components which are used in a large number of electronic equipment and is widely applied to aspects of blocking direct current and alternating current, coupling, bypassing, filtering, tuning loops, energy conversion, control and the like in circuits.
After pins in the existing electromagnetic compatibility capacitor are inserted and pulled for multiple times, the pins are loosened and are easily separated from the positive electrode and the negative electrode of a capacitor element, so that the capacitor cannot normally operate.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the metalized film capacitor with electromagnetic compatibility, which can solve the technical problem that the pins in the conventional capacitor with electromagnetic compatibility are loosened after being inserted and pulled for many times, and are easily separated from the positive electrode and the negative electrode of a capacitor element, so that the capacitor cannot normally operate.
In order to solve the technical problems, the invention provides the following technical scheme: electromagnetic compatibility's metallized film capacitor, which comprises a housin, be equipped with capacitor element in the casing, the pin is all worn to be equipped with fixedly in the top surface of the housing both sides, in the pin bottom extends to the casing, two pins are connected with capacitor element's positive negative pole respectively, pin surface both sides are fixed with the locating piece, and the locating piece embedding is in the top surface of the housing, pin bottom pot head is equipped with the holding ring, the holding ring closes soon through screw thread and pin, the holding ring is used for restricting the pin bottom in the casing, the holding ring top surface sets up insulating silica gel pad, the holding ring passes through insulating silica gel pad and shells inner wall in close contact with.
As a preferable technical scheme of the invention, the negative electrode of the capacitor element is sprayed with a metal film layer, and the metal film layer is a tin-antimony alloy layer.
As a preferable technical scheme of the invention, the cross section of the positioning ring is in an inverted L shape.
As a preferred technical scheme of the invention, the outer surface of the positioning ring is provided with a vertical anti-skidding groove.
As a preferred technical scheme of the invention, the front surface and the rear surface of the shell are both provided with the heat dissipation grooves at equal intervals.
According to a preferable technical scheme, the side face of the shell is provided with a mounting cavity, the mounting cavity is connected with an overhaul plate in a sliding mode, the surfaces of two sides of the overhaul plate are fixedly connected with dovetail strips, dovetail grooves matched with the dovetail strips are formed in two sides of the mounting cavity, and the dovetail strips are in interference fit with the dovetail grooves.
As a preferable technical scheme of the invention, one side of the access panel is provided with a glue injection hole communicated with the access panel.
As a preferred technical scheme of the invention, the inner side surface of the access panel is sprayed with an oil-repellent layer, and the length and width of the oil-repellent layer are matched with those of the installation cavity.
As a preferred technical scheme of the invention, the length of the dovetail strip is matched with the length of the access panel.
As a preferable technical scheme of the invention, the outer side surface of the access panel is provided with an anti-skid groove for skid resistance.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. the positioning ring is additionally arranged at the bottom end of the pin, when the pin needs to be installed, the bottom end of the pin is inserted into the shell from the top surface of the shell, the positioning block is embedded into the top surface of the shell, then the positioning ring is aligned to the bottom end of the positioning block, when the inner side thread of the positioning ring is in contact with the outer side thread of the pin, the positioning ring starts to rotate, the positioning ring continuously moves upwards under the action of the thread until the positioning ring is not rotated, the top surface of the positioning ring is tightly connected with the shell through the insulating silica gel pad, the bottom end of the positioning ring is firmly limited in the shell, the pin can be inserted and pulled out for;
2. through install the dovetail additional in access panel both sides, when the capacitor element overhauls in the casing as the needs, slide the access panel hard, move the dovetail by the access panel and keep away from in the dovetail gradually, the installation intracavity is also keeping away from gradually to the access panel simultaneously, leave the installation intracavity completely until the access panel, accomplish the dismantlement to the access panel, then clear away the heat conduction silica gel in the casing, take out the capacitor element in the casing again, made things convenient for maintainer to overhaul capacitor element.
Drawings
FIG. 1 is a schematic diagram of a metallized film capacitor according to the present invention;
FIG. 2 is a schematic top view of a metallized film capacitor according to the present invention;
FIG. 3 is a schematic cross-sectional view of a retaining ring according to the present invention;
FIG. 4 is a schematic side view of a metallized film capacitor according to the present invention;
FIG. 5 is a schematic bottom view of a metallized film capacitor according to the present invention;
FIG. 6 is an enlarged view of a portion a of FIG. 5;
FIG. 7 is a schematic side view of an oleophobic layer according to the present disclosure;
wherein: 1. a housing; 11. a heat sink; 2. a pin; 21. positioning blocks; 22. a positioning ring; 23. an insulating silica gel pad; 3. an access panel; 31. injecting glue holes; 32. dredging an oil layer; 33. a mounting cavity; 34. a dovetail strip; 35. a dovetail groove.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Referring to fig. 1 to 3, the present invention provides an electromagnetic compatible metallized film capacitor, including a case 1, a capacitor element (not shown in the figure) is disposed in the case 1, a negative electrode of the capacitor element is plated with a metal film layer (not shown in the figure), the metal film layer is a tin-antimony alloy layer, two sides of a top surface of the case 1 are both fixedly penetrated with pins 2, bottom ends of the pins 2 extend into the case 1, the two pins 2 are respectively connected with a positive electrode and a negative electrode of the capacitor element, two sides of an outer surface of the pins 2 are fixed with positioning blocks 21, the positioning blocks 21 are embedded in the case 1 for preventing the pins 2 from loosening with the case 1 due to rotation, the bottom ends of the pins 2 are sleeved with positioning rings 22, the positioning rings 22 are screwed with the pins 2, the positioning rings 22 are used for limiting the bottom ends of the pins 2 in the case 1, cross sections of, holding ring 22 passes through insulating silica gel pad 23 and 1 inner wall in close contact with of casing for promote casing 1's insulating properties, also promoted holding ring 22 simultaneously and casing 1's firm in connection degree, for more convenient rotation, offer vertical non-slip groove at holding ring 22 surface.
Referring to fig. 1, heat dissipation grooves 11 are formed on the front and rear surfaces of the housing 1 at equal intervals, and the heat dissipation grooves 11 are used for increasing the contact area between the housing 1 and the outside air, so as to improve the heat dissipation efficiency of the capacitor.
During the use, when pin 2 need be installed, insert in casing 1 with pin 2 bottom from casing 1 top surface, imbed locating piece 21 in casing 1 top surface simultaneously, then aim at locating ring 22 locating piece 21 bottom, when locating ring 22 inboard screw thread and the 2 outside screw thread contacts, begin to rotate locating ring 22, locating ring 22 constantly shifts up under the effect of screw thread, until when not moving locating ring 22, locating ring 22 top surface tightly is connected with casing 1 through insulating silica gel pad 23 to with the firm restriction in casing 1 in locating ring 22 bottom, pin 2 plug many times, also can not become flexible.
Please refer to fig. 4 to 7, a mounting cavity 33 is formed in a side surface of the housing 1, the mounting cavity 33 is slidably connected with the access panel 3, the surfaces of two sides of the access panel 3 are both fixedly connected with dovetail strips 34, dovetail grooves 35 matched with the dovetail strips 34 are formed in two sides of the mounting cavity 33, the dovetail strips 34 are in interference fit with the dovetail grooves 35, the dovetail strips 34 can move in the dovetail grooves 35, in order to conveniently inject heat-conducting silica gel into the housing 1, glue injection holes 31 communicated with the dovetail strips are formed in one side of the access panel 3, in order to prevent the heat-conducting silica gel from being bonded with the access panel 3, difficulty is brought to separation of the access panel 3 from the housing 1, an oil drainage layer 32 is sprayed on the inner side surface of the access panel 3, the length and the width of the oil drainage layer 32 are matched with the length and the width of the mounting cavity 33, and.
Referring to fig. 4, in order to facilitate the sliding of the access panel 3, an anti-slip groove for preventing slipping is formed on the outer surface of the access panel 3.
During the use, when needing to overhaul capacitor element in the casing 1, slide access panel 3 hard, drive dovetail 34 by access panel 3 and keep away from in dovetail 35 gradually, access panel 3 is also keeping away from the installation cavity 33 gradually simultaneously, until access panel 3 leaves the installation cavity 33 completely, accomplish the dismantlement to access panel 3, then clear away the heat conduction silica gel in the casing 1, take out the capacitor element in the casing 1 again, made things convenient for maintainer to overhaul capacitor element.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Electromagnetic compatibility's metallized film capacitor, including casing (1), be equipped with capacitor element in casing (1), casing (1) top surface both sides are all fixed to wear to be equipped with pin (2), in pin (2) bottom extended to casing (1), two pin (2) are connected its characterized in that with capacitor element's positive negative pole respectively: pin (2) surface both sides are fixed with locating piece (21), and locating piece (21) embedding is in casing (1) top surface, pin (2) bottom cover is equipped with holding ring (22), holding ring (22) close with pin (2) soon through the screw thread, holding ring (22) restrict pin (2) bottom in casing (1), holding ring (22) top surface sets up insulating silica gel pad (23), holding ring (22) are through insulating silica gel pad (23) and casing (1) inner wall in close contact with.
2. The electromagnetic compatible metallized film capacitor of claim 1, wherein: and a metal film layer is sprayed on the negative electrode of the capacitor element, and the metal film layer is a tin-antimony alloy layer.
3. The electromagnetic compatible metallized film capacitor of claim 1, wherein: the cross section of the positioning ring (22) is of an inverted L shape.
4. The electromagnetic compatible metallized film capacitor of claim 1, wherein: and a vertical anti-skidding groove is formed in the outer surface of the positioning ring (22).
5. The electromagnetic compatible metallized film capacitor of claim 4, wherein: the heat dissipation grooves (11) are formed in the front surface and the rear surface of the shell (1) at equal intervals.
6. The electromagnetic compatible metallized film capacitor of claim 1, wherein: installation cavity (33) have been seted up to casing (1) side, sliding connection has access panel (3) in installation cavity (33), access panel (3) both sides equal fixedly connected with dovetail (34) in surface, dovetail (35) with dovetail (34) looks adaptation are all seted up to both sides in installation cavity (33), dovetail (34) and dovetail (35) interference fit.
7. The electromagnetic compatible metallized film capacitor of claim 6, wherein: and one side of the access panel (3) is provided with a glue injection hole (31) communicated with the access panel.
8. The electromagnetic compatible metallized film capacitor of claim 7, wherein: the inner side surface of the maintenance plate (3) is sprayed with an oil drainage layer (32), and the length and width of the oil drainage layer (32) are matched with those of the installation cavity (33).
9. The electromagnetic compatible metallized film capacitor of claim 8, wherein: the length of the dovetail strip (34) is matched with that of the access panel (3).
10. The electromagnetic compatible metallized film capacitor of claim 6, wherein: and the outer side surface of the access panel (3) is provided with an anti-skid groove for skid resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011526550.9A CN112768240A (en) | 2020-12-22 | 2020-12-22 | Metallized film capacitor with electromagnetic compatibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011526550.9A CN112768240A (en) | 2020-12-22 | 2020-12-22 | Metallized film capacitor with electromagnetic compatibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112768240A true CN112768240A (en) | 2021-05-07 |
Family
ID=75695731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011526550.9A Withdrawn CN112768240A (en) | 2020-12-22 | 2020-12-22 | Metallized film capacitor with electromagnetic compatibility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112768240A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203706883U (en) * | 2013-12-21 | 2014-07-09 | 铜陵源丰电子有限责任公司 | Novel film capacitor |
| CN107221434A (en) * | 2017-06-16 | 2017-09-29 | 铜陵市胜美达电子制造有限公司 | The thin film capacitor that a kind of pin is conveniently replaceable |
| CN107331511A (en) * | 2017-06-16 | 2017-11-07 | 铜陵市胜美达电子制造有限公司 | A kind of breakdown thin film capacitor |
| CN207602407U (en) * | 2017-11-22 | 2018-07-10 | 东莞市勤宏电子科技有限公司 | Metallized polypropylene film capacitor |
| US20200294717A1 (en) * | 2018-01-25 | 2020-09-17 | Murata Manufacturing Co., Ltd. | Film capacitor, and outer case for film capacitor |
-
2020
- 2020-12-22 CN CN202011526550.9A patent/CN112768240A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203706883U (en) * | 2013-12-21 | 2014-07-09 | 铜陵源丰电子有限责任公司 | Novel film capacitor |
| CN107221434A (en) * | 2017-06-16 | 2017-09-29 | 铜陵市胜美达电子制造有限公司 | The thin film capacitor that a kind of pin is conveniently replaceable |
| CN107331511A (en) * | 2017-06-16 | 2017-11-07 | 铜陵市胜美达电子制造有限公司 | A kind of breakdown thin film capacitor |
| CN207602407U (en) * | 2017-11-22 | 2018-07-10 | 东莞市勤宏电子科技有限公司 | Metallized polypropylene film capacitor |
| US20200294717A1 (en) * | 2018-01-25 | 2020-09-17 | Murata Manufacturing Co., Ltd. | Film capacitor, and outer case for film capacitor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210507 |
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| WW01 | Invention patent application withdrawn after publication |