CN105679541A - 一种不易变形的电解电容器 - Google Patents
一种不易变形的电解电容器 Download PDFInfo
- Publication number
- CN105679541A CN105679541A CN201610194745.5A CN201610194745A CN105679541A CN 105679541 A CN105679541 A CN 105679541A CN 201610194745 A CN201610194745 A CN 201610194745A CN 105679541 A CN105679541 A CN 105679541A
- Authority
- CN
- China
- Prior art keywords
- shell
- capacitor
- wire
- tantalum powder
- capacitor element
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 43
- 238000005245 sintering Methods 0.000 claims abstract description 28
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 28
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 9
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 5
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229910000648 terne Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 229910001174 tin-lead alloy Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/032—Inorganic semiconducting electrolytes, e.g. MnO2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/052—Sintered electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
本发明公开一种不易变形的电解电容器,包括外壳和置于外壳内的电容器元件,电容器元件的电容芯子包括多孔形钽粉烧结块正极基体,钽粉烧结块正极基体的表面形成有TaO5膜,在钽粉烧结块正极基体的一端形成固体电解质MnO2层,在固体电解质MnO2层上覆盖有负极石墨层,在负极石墨层上喷涂有铅锡合金导电层;外壳为由添加有Al?2O?3的CaO-R?2O-ZrO?2基LTCC陶瓷材料烧结而成的陶瓷外壳,降低了电容器的介电损耗,且提高了抗弯强度,使其外形坚固,不易变形;在外壳内腔与电容器元件之间填充有环氧树脂,能将外壳撑起,使其不易变形,而且绝缘效果好,还能保护电容器元件,防止短路或漏电。
Description
技术领域
本发明涉及电容器技术领域,特别涉及一种不易变形的电解电容器。
背景技术
电容器通常简称其为电容,是一种容纳电荷的器件。对于电解质电容器,一般指铝电解质电容器,其使用薄氧化物膜作为电介质材料,用铝作为电极材料。由于可以制成非常薄的电介质材料,所以相比于电容器的体积来说可以获得相对大的电容。电容器外壳一般为铝制外壳,但是电容器外壳材料为铝材质时,撞击易产生变形,容易导致电容器。
发明内容
本发明的主要目的是提供一种体积小、容量大、安全性高、不易变形的电解电容器。
本发明提出一种不易变形的电解电容器,包括外壳和置于所述外壳内的电容器元件,所述电容器元件包括电容芯子、负极引线和正极引线,所述电容芯子包括由钽金属粉压制成块后高温烧结而成的多孔形钽粉烧结块正极基体,所述钽粉烧结块正极基体的表面经阳极氧化形成有TaO5膜,从所述钽粉烧结块正极基体内向正极端伸出一钽丝,所述正极引线与所述钽丝焊接,在所述钽粉烧结块正极基体的负极端通过浸渍硝酸锰再经高温烧结形成固体电解质MnO2层,在所述固体电解质MnO2层上覆盖有负极石墨层,在所述负极石墨层上喷涂有铅锡合金导电层,所述负极引线焊接在所述电容芯子的负极端,与所述固体电解质MnO2层电性连接;所述外壳为由添加有质量分数为7.5%Al2O3的CaO-R2O-ZrO2基LTCC陶瓷材料在高温下烧结而成的陶瓷外壳,所述外壳为一端开口的外壳,在所述外壳的另一端开有负极引线孔,所述电容芯子从所述外壳的开口端装入所述外壳内,所述负极引线从所述负极引线孔伸出,在所述外壳内腔与所述电容器元件之间填充有环氧树脂,在所述外壳的开口端盖设橡胶密封塞,在所述橡胶密封塞上开有正极引线孔,所述正极引线从所述正极引线孔伸出。
优选地,所述负极引线为铜丝,所述正极引线为镍丝。
本发明的不易变形的电解电容器的有益效果为:
本发明的不易变形的电解电容器采用颗粒很细的钽粉压制成块后高温烧结成多孔形的钽粉烧结块正极基体,其单体积内的有效面积大,使用温度范围宽;钽粉烧结块正极基体的表面经阳极氧化形成有TaO5膜,TaO5膜的介电常数比铝氧化膜的介电常数大;在钽粉烧结块正极基体的负极端通过浸渍硝酸锰再经高温烧结形成固体电解质MnO2层,在固体电解质MnO2层上覆盖有负极石墨层,在负极石墨层上喷涂有铅锡合金导电层;因此在相同耐压和电容量的条件下,不易变形的电解电容器的体积比铝电解电容器的体积要小得多,可制成超小型元件,而且性能稳定,长时间工作仍能保持良好的电性能。
外壳为由添加有质量分数为7.5%Al2O3的CaO-R2O-ZrO2基LTCC陶瓷材料在高温下烧结而成的陶瓷外壳,其中添加的Al2O3起构造与修饰陶瓷结构作用,随着Al2O3含量增加,陶瓷外壳的相对介电常数呈递增规律,降低了电容器的介电损耗,且提高了抗弯强度,使其外形坚固,不易变形。在外壳内腔与电容器元件之间填充有环氧树脂,能将外壳撑起,使而且绝缘效果好,还能保护电容器元件,防止短路或漏电。
附图说明
图1为本发明的不易变形的电解电容器的电容芯子的剖视图;
图2为本发明的不易变形的电解电容器的的剖视图。
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
具体实施方式
应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
参照图1和图2,提出本发明的不易变形的电解电容器的一实施例:
一种不易变形的电解电容器,包括外壳10和置于外壳10内的电容器元件,电容器元件包括电容芯子20、负极引线50和正极引线40。电容芯子20包括由钽金属粉压制成块后高温烧结而成的多孔形钽粉烧结块正极基体21,其单体积内的有效面积大,使用温度范围宽。钽粉烧结块正极基体21的表面经阳极氧化形成有TaO5膜22,TaO5膜22的介电常数比铝氧化膜的介电常数大。从钽粉烧结块正极基体21内向正极端伸出一钽丝26,正极引线40与钽丝26焊接,正极引线为镍丝。在钽粉烧结块正极基体21的负极端通过浸渍硝酸锰再经高温烧结形成固体电解质MnO2层23,在固体电解质MnO2层23上覆盖有负极石墨层24,在负极石墨层24上喷涂有铅锡合金导电层25,负极引线50焊接在电容芯子20的负极端,与固体电解质MnO2层23电性连接。负极引线50为铜丝。
外壳10的一端开口,在外壳10的另一端开有负极引线50孔,电容芯子20从外壳10的开口端装入外壳10内,电容芯子20的负极端通过焊锡焊接在外壳10内。负极引线50从负极引线50孔伸出。在外壳10内腔与电容器元件之间填充有环氧树脂60,能将外壳撑起,使其不易变形,而且绝缘效果好,还能保护电容器元件,防止短路或漏电。外壳10为由添加有质量分数为7.5%Al2O3的CaO-R2O-ZrO2基LTCC陶瓷材料在高温下烧结而成的陶瓷外壳,其中添加的Al2O3起构造与修饰陶瓷结构作用,随着Al2O3含量增加,陶瓷外壳的相对介电常数呈递增规律,降低了电容器的介电损耗,且提高了抗弯强度,使其外形坚固,不易变形。
在外壳10的开口端盖设橡胶密封塞30,在橡胶密封塞30上开有正极引线40孔,正极引线40从正极引线40孔伸出。
本不易变形的电解电容器在相同耐压和电容量的条件下,不易变形的电解电容器的体积比铝电解电容器的体积要小得多,可制成超小型元件,而且性能稳定,长时间工作仍能保持良好的电性能。
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (2)
1.一种不易变形的电解电容器,包括外壳和置于所述外壳内的电容器元件,所述电容器元件包括电容芯子、负极引线和正极引线,其特征在于,所述电容芯子包括由钽金属粉压制成块后高温烧结而成的多孔形钽粉烧结块正极基体,所述钽粉烧结块正极基体的表面经阳极氧化形成有TaO5膜,从所述钽粉烧结块正极基体内向正极端伸出一钽丝,所述正极引线与所述钽丝焊接,在所述钽粉烧结块正极基体的负极端通过浸渍硝酸锰再经高温烧结形成固体电解质MnO2层,在所述固体电解质MnO2层上覆盖有负极石墨层,在所述负极石墨层上喷涂有铅锡合金导电层,所述负极引线焊接在所述电容芯子的负极端,与所述固体电解质MnO2层电性连接;所述外壳为由添加有质量分数为7.5%Al2O3的CaO-R2O-ZrO2基LTCC陶瓷材料在高温下烧结而成的陶瓷外壳,所述外壳为一端开口的外壳,在所述外壳的另一端开有负极引线孔,所述电容芯子从所述外壳的开口端装入所述外壳内,所述负极引线从所述负极引线孔伸出,在所述外壳内腔与所述电容器元件之间填充有环氧树脂,在所述外壳的开口端盖设橡胶密封塞,在所述橡胶密封塞上开有正极引线孔,所述正极引线从所述正极引线孔伸出。
2.根据权利要求1所述的不易变形的电解电容器,其特征在于,所述负极引线为铜丝,所述正极引线为镍丝。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610194745.5A CN105679541A (zh) | 2016-03-31 | 2016-03-31 | 一种不易变形的电解电容器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610194745.5A CN105679541A (zh) | 2016-03-31 | 2016-03-31 | 一种不易变形的电解电容器 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105679541A true CN105679541A (zh) | 2016-06-15 |
Family
ID=56225673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610194745.5A Pending CN105679541A (zh) | 2016-03-31 | 2016-03-31 | 一种不易变形的电解电容器 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105679541A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108492987A (zh) * | 2018-03-09 | 2018-09-04 | 河南理工大学 | 一种具有自修复功能的固态薄膜电容器及其制备方法 |
CN111883373A (zh) * | 2020-07-22 | 2020-11-03 | 贵州全安密灵科技有限公司 | 一种防振电容的加工方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764844A (en) * | 1986-06-13 | 1988-08-16 | Murata Manufacturing Co., Ltd. | Electronic component with terminal caps |
CN104616891A (zh) * | 2015-02-04 | 2015-05-13 | 宁波波英电子有限公司 | 电容器 |
CN104916435A (zh) * | 2015-06-28 | 2015-09-16 | 吕杨 | 电容器 |
-
2016
- 2016-03-31 CN CN201610194745.5A patent/CN105679541A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764844A (en) * | 1986-06-13 | 1988-08-16 | Murata Manufacturing Co., Ltd. | Electronic component with terminal caps |
CN104616891A (zh) * | 2015-02-04 | 2015-05-13 | 宁波波英电子有限公司 | 电容器 |
CN104916435A (zh) * | 2015-06-28 | 2015-09-16 | 吕杨 | 电容器 |
Non-Patent Citations (1)
Title |
---|
肖景和: "《电子元器件识别与检测百问百答》", 31 July 2009, 北京:人民邮电出版社 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108492987A (zh) * | 2018-03-09 | 2018-09-04 | 河南理工大学 | 一种具有自修复功能的固态薄膜电容器及其制备方法 |
CN108492987B (zh) * | 2018-03-09 | 2019-12-24 | 河南理工大学 | 一种具有自修复功能的固态薄膜电容器及其制备方法 |
CN111883373A (zh) * | 2020-07-22 | 2020-11-03 | 贵州全安密灵科技有限公司 | 一种防振电容的加工方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2019047130A (ja) | 密封されたコンデンサアセンブリ | |
CN101154506B (zh) | 钽电容器 | |
CN104051159B (zh) | 用于高温环境的湿式电解电容器 | |
CN103137330A (zh) | 包含胶体工作电解液的湿式电解电容器 | |
US3440495A (en) | Hermetically sealed electrolytic capacitor | |
US9966196B2 (en) | Tantalum embedded microchip | |
KR20090080907A (ko) | 유기 금속 화합물로 처리된 전해 커패시터 양극 | |
US20150155101A1 (en) | Forming Method of Solid Electrolytic Capacitor | |
CN104465107B (zh) | 包含氢保护层的湿式电解电容器 | |
KR20150031759A (ko) | 고체 전해 캐패시터 | |
CN105679541A (zh) | 一种不易变形的电解电容器 | |
US20140268497A1 (en) | Wet Electrolytic Capacitor | |
US20160181021A1 (en) | Solid electrolyte capacitor and manufacturing method thereof | |
CN105655132A (zh) | 一种电解电容器 | |
KR20140021256A (ko) | 탄탈 캐패시터 | |
CN105655135A (zh) | 一种钽电解电容器 | |
KR20020074339A (ko) | 탄탈 고체전해콘덴서 및 그 제조방법 | |
CN105679540A (zh) | 一种安全性高的电解电容器 | |
CN105679542A (zh) | 一种防漏电的电解电容器 | |
CN105742068A (zh) | 一种安全性高的钽电解电容器 | |
US20150228413A1 (en) | Solid electrolytic capacitor, method of manufacturing the same, and chip-type electronic component | |
CN105702464A (zh) | 一种带自放电功能的电解电容器 | |
CN105702469A (zh) | 一种全波倍压整流电路 | |
CN105869891A (zh) | 一种贴片式电解电容器 | |
US20120147520A1 (en) | Capacitor structure and manufacturing method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |
|
WD01 | Invention patent application deemed withdrawn after publication |