CN203706884U - Thin film capacitor suitable for high-temperature and low-temperature environments - Google Patents
Thin film capacitor suitable for high-temperature and low-temperature environments Download PDFInfo
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- CN203706884U CN203706884U CN201320847656.8U CN201320847656U CN203706884U CN 203706884 U CN203706884 U CN 203706884U CN 201320847656 U CN201320847656 U CN 201320847656U CN 203706884 U CN203706884 U CN 203706884U
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Abstract
The utility model relates to a thin film capacitor suitable for the high-temperature and low-temperature environments. The thin film capacitor is installed on a PCB and comprises a body and positive-negative electrode pins, wherein one end of each positive-negative electrode pin is connected to the body, the other end of each positive-negative electrode pin is connected to the PCB through soldering tin, and the positive-negative electrode pins are made of columnar metal. Each positive-negative electrode pin comprises a metal core, the outer layer of the metal core is wrapped by a copper layer, the outer layer of the copper layer is wrapped by a tin layer, and the metal core, the copper layer and the tin layer are mutually pressed to form a whole. As the positive-negative electrode pins are formed by the metal cores, the copper layers and the tin layers in a mutually-pressed mode, when the positive-negative electrode pins are soldered to the PCB, the soldering tin and the tin layers on the outer layers of the positive-negative electrode pins are directly soldered, in the high temperature-low temperature-high temperature alternative use environment, even the soldering tin is overheated to flow, the tin layers on the outer layers can also be melted to enable the positive-negative electrode pins to be tightly fixed to the PCB, the loosened phenomenon can be avoided, the good operation environment is kept, the accident rate is reduced, and the safety performance is improved.
Description
Technical field
The utility model relates to capacitor technology field, relates in particular to a kind of film capacitor that is applicable to high temperature and low temperature environment.
Background technology
Capacitor is commonly referred to electric capacity, and electric capacity is also called " capacitance ", refers to the electric charge reserves under given potential difference, is designated as C, and international unit is farad (F).In general, electric charge is understood stressed and is moved in electric field, has had medium between conductor, has hindered electric charge move and make charge accumulation on conductor, causes the accumulation of electric charge to store, and the quantity of electric charge of storage is called electric capacity.Electric capacity is one of a large amount of electronic components that use in electronic equipment, is widely used in every aspects such as straight, coupling, bypass, filtering, resonant tank, power conversion, control circuits.
The pin of existing film capacitor is directly plain conductor, in soldering to after on pcb board, in the process using, tend to move under different temperatures environment, when in the environment that high temperature-low temperature-high temperature different temperatures substitutes, be easy to make the overheated generation fusing in scolding tin place to flow, meet condensation knot, make the junction loose contact of pin, cause whole circuit to produce potential safety hazard.
Utility model content
In view of this, be necessary to provide a kind of film capacitor that is applicable to high temperature and low temperature environment that is difficult for the junction loose contact that makes pin.
The utility model is to realize like this, a kind of film capacitor that is applicable to high temperature and low temperature environment, be arranged on pcb board, comprise body and both positive and negative polarity pin, one end of described both positive and negative polarity pin is connected on body, the other end of both positive and negative polarity pin is connected on pcb board by scolding tin, described both positive and negative polarity pin is cylindrical metal, comprise metal-cored, the copper layer of described metal-cored skin parcel one deck, skin parcel one deck tin matter layer of described copper layer, described metal-cored, copper layer is laminated into entirety with tin matter layer.
Further, described pcb board is provided with the hole of passing for both positive and negative polarity pin, and both positive and negative polarity pin interts in hole, and both positive and negative polarity pin is fastened on pcb board by tin matter layer and scolding tin.
The advantage of a kind of film capacitor that is applicable to high temperature and low temperature environment that the utility model provides is: by both positive and negative polarity pin is laminated and is formed by metal-cored, copper layer and tin matter layer, in the time being welded on pcb board, scolding tin directly welds with the outer field tin matter of both positive and negative polarity pin layer, in the environment for use replacing at high temperature-low temperature-high temperature, flow even if scolding tin is overheated, also can be by the fusing of outer field tin matter layer and being fixed on pcb board tightly, there will not be loosening phenomenon to occur, keep good running environment, reduce accident rate, improve security performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of film capacitor that is applicable to high temperature and low temperature environment of the utility model.
Fig. 2 is the sectional view of the both positive and negative polarity pin in Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
See also Fig. 1 and Fig. 2, wherein Fig. 1 is the structural representation of a kind of film capacitor that is applicable to high temperature and low temperature environment of the utility model, and Fig. 2 is the sectional view of the both positive and negative polarity pin in Fig. 1.
Described a kind of film capacitor that is applicable to high temperature and low temperature environment, be arranged on pcb board 10, comprise body 20 and both positive and negative polarity pin 30, one end of described both positive and negative polarity pin 30 is connected on body 20, the other end of both positive and negative polarity pin 30 is connected on pcb board 10 by scolding tin 40, described both positive and negative polarity pin 30 is cylindrical metal, comprise metal-cored 31, the copper layer 32 of described metal-cored 31 skin parcel one deck, skin parcel one deck tin matter layer 33 of described copper layer 32, described metal-cored 31, copper layer 32 is laminated into entirety with tin matter layer 33.
Described pcb board 10 is provided with the hole (not shown) of passing for both positive and negative polarity pin 30, and both positive and negative polarity pin 30 interts in hole, and both positive and negative polarity pin 30 is fastened on pcb board 10 by tin matter layer 33 and scolding tin 40.
Described copper layer 32 increases conductivity and the toughness of both positive and negative polarity pin 30, prevents that both positive and negative polarity pin 30 is because of repeatedly bending phenomenon generation of rupturing.
By both positive and negative polarity pin 30 is laminated and is formed by metal-cored 31, copper layer 32 and tin matter layer 33, in the time being welded on pcb board 10, scolding tin 40 directly and the outer field tin matter of both positive and negative polarity pin 30 layer 33 weld, in the environment for use replacing at high temperature-low temperature-high temperature, flow even if scolding tin 40 is overheated, also outer field tin matter layer 33 can be melted and being fixed on pcb board 10 tightly, there will not be loosening phenomenon to occur, keep good running environment, reduce accident rate, improve security performance.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (2)
1. one kind is applicable to the film capacitor of high temperature and low temperature environment, be arranged on pcb board (10), comprise body (20) and both positive and negative polarity pin (30), one end of described both positive and negative polarity pin (30) is connected on body (20), the other end of both positive and negative polarity pin (30) is connected on pcb board (10) by scolding tin (40), it is characterized in that, described both positive and negative polarity pin (30) is cylindrical metal, comprise metal-cored (31), the skin parcel copper layer of one deck (32) of described metal-cored (31), skin parcel one deck tin matter layer (33) of described copper layer (32), described metal-cored (31), copper layer (32) is laminated into entirety with tin matter layer (33).
2. a kind of film capacitor that is applicable to high temperature and low temperature environment according to claim 1, it is characterized in that, described pcb board (10) is provided with the hole of passing for both positive and negative polarity pin (30), both positive and negative polarity pin (30) interts in hole, and both positive and negative polarity pin (30) is fastened on pcb board (10) by tin matter layer (33) and scolding tin (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847656.8U CN203706884U (en) | 2013-12-21 | 2013-12-21 | Thin film capacitor suitable for high-temperature and low-temperature environments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847656.8U CN203706884U (en) | 2013-12-21 | 2013-12-21 | Thin film capacitor suitable for high-temperature and low-temperature environments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706884U true CN203706884U (en) | 2014-07-09 |
Family
ID=51057286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320847656.8U Expired - Fee Related CN203706884U (en) | 2013-12-21 | 2013-12-21 | Thin film capacitor suitable for high-temperature and low-temperature environments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680954A (en) * | 2013-12-21 | 2014-03-26 | 铜陵源丰电子有限责任公司 | Thin film capacitor suitable for high-temperature and low-temperature environments |
-
2013
- 2013-12-21 CN CN201320847656.8U patent/CN203706884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680954A (en) * | 2013-12-21 | 2014-03-26 | 铜陵源丰电子有限责任公司 | Thin film capacitor suitable for high-temperature and low-temperature environments |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20141221 |
|
| EXPY | Termination of patent right or utility model |