TWI690111B - Protection element and its battery pack - Google Patents
Protection element and its battery pack Download PDFInfo
- Publication number
- TWI690111B TWI690111B TW107111796A TW107111796A TWI690111B TW I690111 B TWI690111 B TW I690111B TW 107111796 A TW107111796 A TW 107111796A TW 107111796 A TW107111796 A TW 107111796A TW I690111 B TWI690111 B TW I690111B
- Authority
- TW
- Taiwan
- Prior art keywords
- electrode
- protection element
- terminal electrode
- fusible conductor
- insulating
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims abstract description 67
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 9
- 229910000679 solder Inorganic materials 0.000 claims description 46
- 238000010438 heat treatment Methods 0.000 claims description 43
- 238000001179 sorption measurement Methods 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 16
- 239000000919 ceramic Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000020169 heat generation Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 238000009413 insulation Methods 0.000 description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052718 tin Inorganic materials 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 5
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000011135 tin Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910003465 moissanite Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron carbonyl Substances 0.000 description 1
- 229940087654 iron carbonyl Drugs 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
- H01H85/17—Casings characterised by the casing material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/36—Means for applying mechanical tension to fusible member
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
Landscapes
- Fuses (AREA)
Abstract
本發明提出一種保護元件及其電池包,保護元件包括:絕緣外殼體;多個端電極,包括第一端電極、第二端電極以及第三端電極,該些端電極分別貫穿絕緣外殼體,且分別被絕緣外殼體所支撐;彈性元件,配置在該絕緣外殼體內,該彈性元件的二端分別電氣連接該第一端電極與該第二端電極,用以在該保護元件的第一端電極與第二端電極之間提供第一雙向的電流路徑;可熔導體,配置在絕緣外殼體內;以及第一熱產生組件,配置在該絕緣外殼體內,該可熔導體與該第一熱產生組件二者彼此電氣串聯於該第一雙向的電流路徑與該第三端電極之間。 The invention provides a protective element and a battery pack thereof. The protective element includes: an insulating outer casing; a plurality of terminal electrodes, including a first terminal electrode, a second terminal electrode, and a third terminal electrode, the terminal electrodes respectively penetrate the insulating outer casing, And are respectively supported by the insulating outer shell; the elastic element is arranged in the insulating outer shell, and the two ends of the elastic element are electrically connected to the first end electrode and the second end electrode, respectively, for the first end of the protection element A first bidirectional current path is provided between the electrode and the second terminal electrode; a fusible conductor, arranged in the insulating housing; and a first heat generating component, arranged in the insulating housing, the fusible conductor and the first heat generating The two components are electrically connected in series with each other between the first bidirectional current path and the third terminal electrode.
Description
本發明是有關於一種保護元件及其電池包,且特別是有關於一種具備過電流、過電壓或過溫度保護功能的保護元件以及可承受高充放電電流的保護元件及其電池包。 The present invention relates to a protection element and its battery pack, and in particular to a protection element with over-current, over-voltage or over-temperature protection function, and a protection element and battery pack that can withstand high charge and discharge current.
先前的保護元件,其端電極大都配置於基板上,且將可熔導體配置在端電極上,未來應用於馬達相關的瞬間工作電流都相當的高,甚至高於50A,設置於基板上的端電極與基板都無法承受如此大異常電流的流通,甚至,端電極與基板都會因可熔導體於熔斷的瞬間,所產生的高熱以及高壓而被熔融或斷裂。另,可熔導體若要能承受30A~100A之間的工作電流或額定電流,其截面積(厚度與寬度)都必須加大,該可熔導體熔斷後分開成兩部分的距離,也必須有足夠的空間,確保斷開後可熔導體的絕緣電阻在安全範圍內。 In the previous protection devices, the terminal electrodes are mostly arranged on the substrate, and the fusible conductors are arranged on the terminal electrodes. In the future, the instantaneous working current applied to the motor is quite high, even higher than 50A, and the terminal is provided on the substrate. Neither the electrode nor the substrate can withstand the flow of such a large abnormal current. Even the end electrode and the substrate will be melted or broken due to the high heat and high pressure generated by the fusible conductor at the moment of fusing. In addition, if the fusible conductor can withstand the working current or rated current between 30A~100A, its cross-sectional area (thickness and width) must be increased. After the fusible conductor is fused, it must be separated into two parts. There is enough space to ensure that the insulation resistance of the fusible conductor after disconnection is within a safe range.
因此,為了因應市場未來大額定電流的需求,保護元件的端電極必須加大其截面積且使用導電性較佳的金屬材料(如:金屬片),並且提出避免保護元件的端電極印刷在絕緣基板上 以及避免可熔導體截面積(厚度與寬度)加大後所產生絕緣電阻不夠大的問題與保護元件動作的速度或時間變慢,同時確保本身的安全性與穩定性。 Therefore, in order to meet the market's future demand for large rated current, the terminal electrode of the protection element must increase its cross-sectional area and use a metal material with better conductivity (such as a metal sheet), and it is proposed to avoid the terminal electrode of the protection element printed on the insulation The problem of insufficient insulation resistance caused by the increase of the cross-sectional area (thickness and width) of the fusible conductor on the substrate and the slow speed or time of the protection element action, while ensuring its own safety and stability.
為了解決上述的問題,本發明提出一種保護元件以及電池包。保護元件包括:絕緣外殼體;多個端電極,包括第一端電極、第二端電極以及第三端電極,該些端電極分別貫穿絕緣外殼體,且分別被絕緣外殼體所支撐;彈性元件,配置在該絕緣外殼體內,該彈性元件的二端分別電氣連接該第一端電極與該第二端電極,用以在該保護元件的第一端電極與第二端電極之間提供第一雙向的電流路徑;可熔導體,配置在絕緣外殼體內;以及第一熱產生組件,配置在該絕緣外殼體內,該可熔導體與該第一熱產生組件二者彼此電氣串聯於該第一雙向的電流路徑與該第三端電極之間。 In order to solve the above problems, the present invention provides a protection element and a battery pack. The protection element includes: an insulating outer shell; a plurality of terminal electrodes, including a first terminal electrode, a second terminal electrode, and a third terminal electrode, the terminal electrodes respectively penetrate the insulating outer shell and are respectively supported by the insulating outer shell; the elastic element , Disposed in the insulating housing, the two ends of the elastic element are electrically connected to the first end electrode and the second end electrode, respectively, to provide a first between the first end electrode and the second end electrode of the protection element A bidirectional current path; a fusible conductor arranged in the insulating housing; and a first heat generating component arranged in the insulating housing, the fusible conductor and the first heat generating component are electrically connected in series with each other in the first bidirectional Between the current path and the third terminal electrode.
本發明提出一種電池包,包括:至少一電池元件;上述的保護元件,其中該保護元件與該至少一電池元件串聯連接以形成至少一充放電電流路徑;開關電路,耦接到該第三端電極;以及偵測控制電路,用以偵測該至少一電池元件的電壓或溫度,依據所偵測到的電壓或溫度而決定該開關電路的狀態。 The present invention provides a battery pack including: at least one battery element; the above-mentioned protection element, wherein the protection element is connected in series with the at least one battery element to form at least one charge-discharge current path; a switching circuit is coupled to the third terminal Electrodes; and a detection control circuit for detecting the voltage or temperature of the at least one battery element, and determining the state of the switching circuit according to the detected voltage or temperature.
888、888a、888b、888c‧‧‧保護元件 888, 888a, 888b, 888c ‧‧‧ protection element
1‧‧‧充電裝置或電子裝置 1‧‧‧Charging device or electronic device
2‧‧‧充放電控制電路 2‧‧‧Charge and discharge control circuit
4‧‧‧電池元件 4‧‧‧Battery components
5‧‧‧偵測控制電路 5‧‧‧detection control circuit
6‧‧‧多孔洞的陶瓷結構 6‧‧‧Porous ceramic structure
7(1)‧‧‧第一熱產生組件 7(1)‧‧‧The first heat generating component
7a、7b‧‧‧發熱體電極 7a, 7b‧‧‧Heating body electrode
7c‧‧‧第一發熱體 7c‧‧‧First heating element
7z‧‧‧吸附電極 7z‧‧‧adsorption electrode
8‧‧‧可熔導體 8‧‧‧ Fusible conductor
9(1)、9(2)‧‧‧焊料或焊錫 9(1), 9(2) ‧‧‧ solder or solder
10‧‧‧絕緣基板 10‧‧‧Insulated substrate
16‧‧‧絕緣層 16‧‧‧Insulation
18‧‧‧開口 18‧‧‧ opening
19‧‧‧絕緣外殼體 19‧‧‧Insulated shell
19a‧‧‧絕緣外殼體蓋體 19a‧‧‧Insulating shell cover
19b‧‧‧絕緣外殼體基體 19b‧‧‧Insulating shell substrate
19x1、19x2、19x3、19x4、19x5、19x6‧‧‧絕緣外殼體的六個面 19x1, 19x2, 19x3, 19x4, 19x5, 19x6
588‧‧‧電池包 588‧‧‧Battery pack
S‧‧‧開關電路 S‧‧‧Switch circuit
S1‧‧‧彈性元件 S1‧‧‧Elastic element
Ic‧‧‧充電電流或充電電流的路徑 Ic‧‧‧charging current or charging current path
Id‧‧‧放電電流或放電電流的路徑 Id‧‧‧discharge current or path of discharge current
11‧‧‧第一端電極 11‧‧‧First electrode
21‧‧‧第二端電極 21‧‧‧Second terminal electrode
31‧‧‧第三端電極 31‧‧‧The third electrode
圖1為本發明之一種保護元件的剖面示意圖。 FIG. 1 is a schematic cross-sectional view of a protection element of the present invention.
圖1A為保護元件的等效電路圖。 Fig. 1A is an equivalent circuit diagram of a protection element.
圖1B為保護元件的彈性元件恢復原始位置之剖面示意圖。 FIG. 1B is a schematic cross-sectional view of the elastic element of the protection element returning to its original position.
圖1C為保護元件的可熔導體被熔斷之剖面示意圖。 1C is a schematic cross-sectional view of the fusible conductor of the protection element being fused.
圖1D為保護元件保護動作後的等效電路圖。 FIG. 1D is an equivalent circuit diagram of the protection element after protection operation.
圖1E為保護元件的等效電路圖。 FIG. 1E is an equivalent circuit diagram of the protection element.
圖1F為凸出體的剖面示意圖。 FIG. 1F is a schematic cross-sectional view of the protrusion.
圖1G為彈性元件動作的剖面示意圖。 FIG. 1G is a schematic cross-sectional view of the action of the elastic element.
圖1H為保護元件的等效電路圖。 Figure 1H is an equivalent circuit diagram of the protection element.
圖1I為本發明之一種保護元件的剖面示意圖。 FIG. 1I is a schematic cross-sectional view of a protection element of the present invention.
圖2為本發明之一種保護元件的剖面示意圖。 2 is a schematic cross-sectional view of a protection element of the present invention.
圖2A為本發明之一種保護元件的剖面示意圖。 2A is a schematic cross-sectional view of a protection element of the present invention.
圖2B為本發明之一種保護元件的剖面示意圖。 2B is a schematic cross-sectional view of a protection element of the present invention.
圖2C為本發明之一種保護元件的外觀示意圖。 2C is a schematic view of the appearance of a protection element of the present invention.
圖2D為本發明之一種保護元件的外觀示意圖。 2D is a schematic view of the appearance of a protection element of the present invention.
圖3為本發明之一種電池包的電路構成的例圖。 FIG. 3 is an example diagram of a circuit configuration of a battery pack of the present invention.
為使能更進一步瞭解本發明之特徵和技術內容,請參閱以下相關的實施例,並配合所附圖式作詳細說明如下。另外,凡可能之處,在圖式及實施方式中使用相同標號的元件/構件代表相同或類似部分。此外,圖示是以示意方式繪示,會有各尺寸的比率與實際不同的情形,應參酌以下的說明自行判斷。實施例說明如下: In order to further understand the features and technical contents of the present invention, please refer to the following related embodiments and make detailed descriptions in conjunction with the accompanying drawings as follows. In addition, wherever possible, elements/components using the same reference numerals in the drawings and embodiments represent the same or similar parts. In addition, the illustration is drawn in a schematic way, and the ratio of each size may be different from the actual one. You should refer to the following description to judge for yourself. The embodiment is described as follows:
【保護元件888】 【Protection element 888】
圖1繪示為本發明第一實施例的一種保護元件888的剖面示意圖。圖1A繪示為保護元件888的等效電路圖。請同時參考圖1以及圖1A。本實施例的保護元件888包括:絕緣外殼體19、;三個端電極、彈性元件S1、焊料9、可熔導體8、吸附電極7z以及第一熱產生組件7(1)。 FIG. 1 is a schematic cross-sectional view of a
【絕緣外殼體19】 【Insulation shell 19】
絕緣外殼體19包含絕緣外殼體蓋體19a與絕緣外殼體基體19b。絕緣外殼體19的成分包含聚合物(polymer)與陶瓷材料等其中之一者或兩者的組合。其中,該陶瓷材料包含碳化矽SiC、氧化鋁、氮化鋁、氮化矽Si3N4、石墨等其中任一者或其中的兩者以上的組合。其中,聚合物包含耐熱性良好的工程塑膠中的任一種或二種以上的組合。第一實施例之保護元件888的絕緣外殼體19的主成分為聚合物(polymer),包含聚苯硫醚(Polyhenylenesulfide)。絕緣外殼體19在成形為圖1的形狀(或其他形狀,如圖2C、圖2D)時,可以分成絕緣外殼體基體19a與絕緣外殼體基體19b兩部分,分別成型。其中,絕緣外殼體蓋體19a也可以同時使用嵌入成型的製程,將第一端電極11、第二端電極21、第三端電極31以及絕緣外殼體蓋體19a一體化成型。絕緣外殼體19具有左面部19x1、右面部19x2、上面部19x3、底面部19x4、前面部19x5以及後面部19x6等六個面部(如圖2C)。 The insulating
【端電極、吸附電極7z】 【Terminal electrode,
上述三個端電極(即第一端電極11、第二端電極21、第三端電極31)貫穿絕緣外殼體蓋體19a且由絕緣外殼體蓋體19a支 撐。每一個端電極(即第一端電極11、第二端電極21)的其中一端(第一端)配置(外露)於絕緣外殼體19外,另一端(第二端)配置或浮設於絕緣外殼體19內或延伸至絕緣外殼體19內。更進一步來說,第三端電極31的第二端配置在絕緣外殼體基體19b上。第一端電極11的第二端與絕緣外殼體基體19b之間具有間隙,且第二端電極21的第二端與絕緣外殼體基體19b之間也具有間隙。除此之外,由於該些端電極以及吸附電極7z並非以印刷製程而是以其他製程(如:壓合製程)成型,設計者可根據實際應用或設計需求而調整該些端電極的厚度與密度,以降低該些端電極的內阻。本發明所有的端電極以及吸附電極7z的材料包含以金、銀、銅、錫、鉛、鋁、鎳、鈀、白金等中任一種作為主成份或其部分的組合作為主成分的材料所製成的片狀或長條狀的金屬。另,外露在絕緣外殼體19外的部分端電極以及吸附電極7z的表面可以鍍上一層或多層較不易氧化或較穩定的金屬材料如:鎳、錫、鉛、鋁、鎳、金等。如此一來,該些端電極或吸附電極7z可避免大電流流經第一端電極11與第二端電極21時產生高溫而使第一端電極11與第二端電極21被熔融。本發明的所有端電極都可採用類似於上述說明的方式來實現。需說明的是本實施例的第三端電極31的第二端與絕緣外殼體基體19b之間也可以具有間隙,第一端電極11與第二端電極21的第二端也可以配置在絕緣外殼體基體19b上(視不同之需要而調整設計)。另,流經吸附電極7z的電流值小於流經第一端電極11與第二端電極21的電流值,因為第一熱產生組件7(1)的電阻值大於彈性元件S1 之電阻值。 The above-mentioned three terminal electrodes (i.e., the first
【彈性元件S1與焊料】 【Elastic element S1 and solder】
焊料包含焊料9(1)與焊料9(2),焊料9(1)將彈性元件S1的第一端固定在第二端電極21上,且電氣連接第二端電極21,焊料9(2)將彈性元件S1的第二端固定在第一端電極11上,且電氣連接第一端電極11,用以在該保護元件的第一端電極與第二端電極之間提供第一雙向的電流路徑(充電電流的路徑Ic與放電電流的路徑Id)。本發明專利說明書中所述之電氣連接,都可適用以上述焊料9(1)、9(2)為電氣連接的方法之一。焊料9(1)、9(2)的材料包含以錫為主成分的有鉛或無鉛組合物。彈性元件S1之構成材料並無特別限制,較佳地,彈性元件S1是具有強彈性、強拉伸力、高硬度、高導電的導體或金屬材料,且彈性元件S1之構成材料最好與焊料9或金屬有很好的結合性。請參考圖1G,原始狀態的彈性元件S1是保持在水平狀態,彈性元件S1是可以藉由外力向下或向上折彎,當外力移除後,彈性元件S1會回復原始水平狀態。本實施例將彈性元件S1的第一端向下折彎,並藉由焊料9(1)將彈性元件S1的第一端固定在第二端電極21上且電氣連接第二端電極21。當焊料9(1)部分熔融時,彈性元件S1的技術特徵是藉由本身的彈性,強制脫離第二端電極21(即回復至原始水平狀態),使彈性元件S1與第二端電極21之間呈現開路狀態(open circuit),等同於彈性元件S1與第二端電極21之間的電流路徑被斷開,焊料9(2)的熔點或液化點可以高於焊料9(1)的熔點或液化點。本發明的所有彈性元件S1都適用上述的說明。需特別說明的是:為提升或加強將彈性元件S1的第一端固定在第二端電極21上,請參考圖1F,本實施例的保護元件888可另包括至少一 凸出體Sa,配置在彈性元件S1與第二端電極21之間,焊料9(1)也配置在彈性元件S1與第二端電極21之間,填滿凸出體Sa以外的空間,調整Sa的高度可以增加或減少耗料的用量,並確保彈性元件S1不會將焊料9(1)全部擠出,造成焊接不良,無法將彈性元件S1的第一端適當的固定在第二端電極21上。凸出體Sa可以是將彈性元件S1或第二端電極21本身沖壓而成或業界熟知的任何技術而製成,也可是外加任何形狀的固體。凸出體Sa可以適用於本發明所有的保護元件。需特別說明的是:本實施例也可將彈性元件S1的第一端向下折彎並藉由焊料9(1)將彈性元件S1的第一端固定在第一端電極11上,且電氣連接第一端電極11。焊料9(2)將彈性元件S1的第二端固定在第二端電極21上,且電氣連接第二端電極21。焊料9(2)的熔點或液化點可以高於焊料9(1)的熔點或液化點。當然,第一端電極11與第二端電極21的高度也需配合調整。 The solder includes solder 9(1) and solder 9(2). The solder 9(1) fixes the first end of the elastic element S1 to the second
【第一熱產生組件7(1)】 [The first heat generating component 7(1)]
第一熱產生組件7(1)配置在該絕緣外殼體19內,並且配置在第三端電極31上,包括二個發熱體電極7a、7b以及第一發熱體7c,且三者形成所謂三明治的結構,第一發熱體7c被夾在二個第一發熱體電極7a、7b之間(例如:晶片型的正溫度係數電阻PTC Resister),第一發熱體7c的其中一端電氣連接發熱體電極7a,另一端電氣連接發熱體電極7b。需特別說明的是,本實施例中的發熱體電極7b是藉由焊錫或焊料9固定在第三端電極31上,並且電氣連接第三端電極31。第一熱產生組件7(1)由第三端電極31支撐。第一發熱體7c是電阻值相對較高的元件(相較於可熔導體8),且具有電流通過就會發熱的特性,其材料包括二氧化釕(RuO2)、氧 化釕、氧化鋅、釕、銅、鈀、白金、碳化鈦、碳化鎢、鉑、鉬、鎢、碳黑、有機結合劑或無機結合劑等其中之一為主成分或其中部分組合物為主成分的陶瓷元件。第一發熱體電極7a、7b可以是單層金屬或多層金屬結構,其各層的材料包括銅、錫、鉛、鐵、鎳、鋁、鈦、鉑、鎢、鋅、銥、鈷、鈀、銀、金、羰基鐵、羰基鎳、羰基鈷等其中之一或其部分組合成的合金。 The first heat generating component 7(1) is arranged in the insulating
【可熔導體8】 【Fusable conductor 8】
可熔導體8配置在絕緣外殼體19內。絕緣外殼體19具有保護絕緣外殼體19內的元件的功用,包含如:彈性元件S1、可熔導體8、第一端電極11、第二端電極21、第三端電極31的第二端以及第一熱產生組件7(1)等。可熔導體8可以是多層結構,具有低熔點導體層與高熔點導體層,其中低熔點導體層與高熔點導體層的熔點不相同。當然,可熔導體8也可是單層結構,只包含單一熔點的金屬導體層(低熔點導體層或高熔點導體層)。可熔導體8中的低熔點導體層的材料包含以錫為主成分的有鉛或無鉛金屬合金。可熔導體8中的高熔點導體層的材料包含以銀、銅、錫、鉍、銦、鋅、鋁等部分組成的合金。本發明的所有可熔導體都適用上述的說明。可熔導體8的兩端分別電氣連接第二端電極21與第一熱產生組件7(1),以在第二端電極21與第一熱產生組件7(1)之間形成雙向的電流路徑。當然,可熔導體8的兩端也可以改成分別電氣連接第一端電極11與第一熱產生組件7(1)。需特別說明的是,本實施例中的可熔導體8的一端是藉由焊錫或焊料固定在第二端電極21的表面, 並且電氣連接第二端電極21,另外一端是藉由焊錫或焊料固定在吸附電極7z上,並且電氣連接吸附電極7z。吸附電極7z配置在可熔導體8與發熱體電極7a之間,並且電氣連接可熔導體8與發熱體電極7a。吸附電極7z的優點是當可熔導體8的體積變大時,部分被熔融的可熔導體8可以吸附在較大面積的吸附電極7z上(相較於發熱體電極7a)。需說明的是,本實施例之保護元件888也可以不包括吸附電極7z,直接將可熔導體8的另外一端藉由焊錫或焊料固定在發熱體電極7a上,發熱體電極7a也可以調整其面積大小,其效果並不影響本發明之保護元件888的基本功能。另,需特別說明的是:本發明的所有保護元件中的可熔導體8與第一熱產生組件7(1)二者彼此電氣串聯於第一雙向的電流路徑(Ic、Id)與第三端電極31之間。因為只需將第一端電極11、第二端電極21、可熔導體8、第一熱產生組件7(1)以及第三端電極31做不同的連結或耦接或電氣連接的組合即可(請參考圖1A、圖1E、圖1H以及圖1I)。 The
【保護元件888的動作說明】 【Description of operation of protection element 888】
請參閱圖1A、圖1B、圖1C以及圖1D,當低於額定電流值的電流流經彈性元件S1時,保護元件888不會動作,維持保護元件888的原始狀態。 Please refer to FIG. 1A, FIG. 1B, FIG. 1C and FIG. 1D. When a current lower than the rated current flows through the elastic element S1, the
請參閱圖1B,狀況一:當高於額定電流值的電流流經彈性元件S1時,彈性元件S1會因本身發熱而將焊料9(1)熔融(請參考圖1B),當焊料9(1)部分熔融時,彈性元件S1的第一端是藉由本身的彈性,強制脫離第二端電極21(即回復至原始水平狀態),使彈性元件S1與第二端電極21之間呈現開路狀態(open circuit),等同於彈性元件S1與第二端電極 21之間的電流路徑被斷開。 Please refer to FIG. 1B, condition 1: when current higher than the rated current flows through the elastic element S1, the elastic element S1 will melt the solder 9(1) due to its own heat (please refer to FIG. 1B), when the solder 9(1 ) When the part is melted, the first end of the elastic element S1 is forced to detach from the second end electrode 21 (that is, return to the original horizontal state) by its own elasticity, so that the elastic element S1 and the
請參閱圖1B以及圖1C,狀況二:當第一熱產生組件7(1)發熱時,第一熱產生組件7(1)所產生的熱能經由發熱體電極7a以及吸附電極7z傳遞到可熔導體8、第二端電極21以及焊料9(1)。因第二端電極21的熔點高於可熔導體8與焊料9(1),並且可熔導體8與焊料9(1)的熔點相似,但,可熔導體8的體積大於焊料9(1)的體積,所以,焊料9(1)先被熔融(請參考圖1B)。當焊料9(1)部分熔融時,彈性元件S1的第一端是藉由本身的彈性,強制脫離第二端電極21(即回復至原始水平狀態),使彈性元件S1與第二端電極21之間呈現開路狀態(open circuit),等同於彈性元件S1與第二端電極21之間的電流路徑被斷開。一端時間之後,可熔導體8被熔斷,部分被熔融的可熔導體8吸附在吸附電極7上(請參考圖1C),因此,第二端電極21與第一熱產生組件7(1)或第三端電極31之間的電流路徑被斷開。需說明的是:可熔導體8的熔點或液化點可以高於焊料9(1)的熔點或液化點,或者是,可熔導體8的熔點或液化點可以低於焊料9(1)的熔點或液化點,只需確保焊料9(1)先被熔融,一段時間之後,可熔導體8才被熔斷即可。 Please refer to FIG. 1B and FIG. 1C. Condition 2: When the first heat generating element 7(1) generates heat, the heat energy generated by the first heat generating element 7(1) is transferred to the fusible via the
圖2繪示為本發明第二實施例的一種保護元件888a的剖面示意圖。圖1A繪示為保護元件888a的等效電路圖。本實施例之保護元件888a與第一實施例的保護元件888相似,兩者主要的差異是:本實施例之保護元件888a還包括絕緣基板10以及絕緣層16。其中,第一熱產生組件包括二個發熱體電極7a、7b以及第一發熱體7c,第一熱產生組件7(1)配置在絕緣基板10上,第一發熱體7c的其中一端 電氣連接發熱體電極7a,另一端電氣連接發熱體電極7b。絕緣層16配置在第一發熱體7c上。其中,發熱體電極7a又延伸至絕緣層16表面上,並且電氣連接吸附電極7z。需說明的是,本實施例之保護元件888a也可以不包括絕緣層16,只需將第一發熱體7c與發熱體電極7a、7b分別配置在絕緣基板10上而不重疊即可(未繪示),其果效與圖1D的保護元件888a相似。其他有關結構與動作的相關說明與第一實施例之保護元件888相似,請自行參閱,在此不再贅述。 2 is a schematic cross-sectional view of a
圖2A繪示為本發明第三實施例的一種保護元件888b的剖面示意圖。圖1A繪示為保護元件888b的等效電路圖。本實施例之保護元件888b與第二實施例的保護元件888a相似,兩者主要的差異是:本實施例之保護元件888b的第一熱產生組件7(1)配置在絕緣基板10內,並且第一熱產生組件7(1)的發熱電極7a延伸至絕緣基板10的表面,該發熱電極7a耦接或電氣連接吸附電極7z,第一熱產生組件7(1)的發熱電極7b延伸至絕緣基板10的表面,該發熱電極7b耦接或電氣連接第三端電極31。其他有關結構與動作的相關說明與第二實施例之保護元件888a相似,請自行參閱,在此不再贅述。 2A is a schematic cross-sectional view of a
圖2B繪示為本發明第四實施例的一種保護元件888c的剖面示意圖。圖2C為本發明之保護元件888c的外觀示意圖。圖1A繪示為保護元件888c的等效電路圖。本實施例之保護元件888c與第二實施例的保護元件888a相似,兩者主要的差異是:本實施例之保護元件888c的絕緣外殼體基體19b具有多孔洞陶瓷結構6,保護元件888c的絕緣外殼體蓋體19a具有開口18,開口18可以是一個或多個(請參 考圖2B、2C)。絕緣外殼體19,其特徵是:絕緣外殼體基體19b,其主要成份是由陶瓷粉體所組成,藉由燒結的製程將之燒結成型,並在陶瓷顆粒之間產生間隙或孔洞。其中,該陶瓷材料包含碳化矽SiC、氧化鋁、氮化鋁、氮化矽Si3N4、石墨等其中任一者或其中的兩者以上的組合。絕緣外殼體蓋體19a的主成分為聚合物(polymer),包含聚苯硫醚(Polyhenylenesulfide)。上述開口18或孔洞陶瓷結構,其技術特徵是:當保護元件888c的額定電壓值與額定電流值較高時(如:大於30A或50A或100A以上),可熔導體8被熔斷的瞬間,氣體所產生的高壓,可經由絕緣外殼體19的多孔洞且互通的結構6或開口18較均勻地排洩出去。需特別說明的是,多孔洞陶瓷結構6或開口18可以配置在絕緣外殼體19六個面中的至少其中一面,也可以是任何其中一面的局部或部分的。絕緣外殼體基體19b的多孔洞陶瓷結構6(請參考圖2B),也可以是局部或部分的,或者是,如本實施例中之絕緣外殼體基體19b全部都是多孔洞陶瓷結構6。當然,也可以將多孔洞陶瓷結構6與開口18對調實施,例如,絕緣外殼體基體19b具有開口18,絕緣外殼體蓋體19a具有多孔洞陶瓷結構6(請參考圖2D)。本實施例之開口18或多孔洞陶瓷結構6也可以適用於本發明之其他保護元件的結構中。其他有關結構與動作的相關說明與第一實施例之保護元件888相似,請自行參閱,在此不再贅述。 2B is a schematic cross-sectional view of a
圖3繪示為本發明實施例的一種電池包588的電路圖。電池包588包括:電池元件4、充放電控制電路2、偵測控制電路5、開關電路以及上述之保護元件888或888a或888b或888c或 888d或888e或888f或888g。電池元件4具有四個電池元件4-1、4-2、4-3、4-4(但本發明不限於此)。充放電控制電路2負責控制充放電電流(Ic、Id)的開啟與關閉。開關電路S的初始狀態為斷路,可分別依據輸入信號,使開關電路S短路或導通。偵測控制電路5分別偵測電池元件4中每個電池元件4-1、4-2、4-3、4-4的電壓值或溫度值,並輸出信號給充放電控制電路2或開關電路S。保護元件888的端電極11、21串聯連接於電池元件4與充放電控制電路2之間,形成充放電路徑(即充電電流Ic與放電電流Id的路徑)。開關電路S的其中一端耦接到第三端電極31。本實施例的可充放電電池包588中的充放電控制電路2,可依據外接的是充電裝置1或電子裝置1以及偵測控制電路5所輸出的信號來開啟與關閉充放電的電流。當高於額定電流值的充電電流Ic流經可熔導體8或高於額定電流值的放電電流Id流經可熔導體8時,可熔導體8會熔斷,以斷開充電電流Ic或放電電流Id的路徑,以達到保護電池元件4或電池包588的過電流保護功能。另,當偵測控制電路5偵測到電池元件4-1、4-2、4-3、4-4中的任何一個發生異常(如:過充或過溫)時,則會送出信號給開關電路S,以將開關電路S切換至短路狀態或導通狀態,致使電流可流經第一發熱體7c或第一發熱體7c以及第二發熱體7c2。第一發熱體7c因通電發熱而熔斷可熔導體8或第一發熱體7c以及第二發熱體7c2同時通電發熱而熔斷可熔導體8,以斷開充電電流Ic與放電電流Id,達成可充放電電池包588的過充或過電壓或過溫保護的功能。 FIG. 3 is a circuit diagram of a
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,故本發明之保護範圍當視後附之申請專利範圍所界定者為準,凡合於本發明申請專利範圍之精神與其運用本發明說明書及圖式內容所為之類似變化,均包含於本發明之專利範圍內。 Although the present invention has been disclosed as above by the embodiments, it is not intended to limit the present invention. Anyone who has ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application, and any changes within the spirit of the patent application scope of the present invention and similar changes in the application of the specification and drawings of the present invention shall be included in the patent of the present invention. Within range.
888‧‧‧保護元件 888‧‧‧Protection element
7(1)‧‧‧第一熱產生組件 7(1)‧‧‧The first heat generating component
7a、7b‧‧‧發熱體電極 7a, 7b‧‧‧Heating body electrode
7c‧‧‧第一發熱體 7c‧‧‧First heating element
7z‧‧‧吸附電極 7z‧‧‧adsorption electrode
8‧‧‧可熔導體 8‧‧‧ Fusible conductor
9(1)、9(2)‧‧‧焊料或焊錫 9(1), 9(2) ‧‧‧ solder or solder
11‧‧‧第一端電極 11‧‧‧First electrode
21‧‧‧第二端電極 21‧‧‧Second terminal electrode
31‧‧‧第三端電極 31‧‧‧The third electrode
19‧‧‧絕緣外殼體 19‧‧‧Insulated shell
19a‧‧‧絕緣外殼體蓋體 19a‧‧‧Insulating shell cover
19b‧‧‧絕緣外殼體基體 19b‧‧‧Insulating shell substrate
S1‧‧‧彈性元件 S1‧‧‧Elastic element
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW106111509 | 2017-04-06 | ||
TW106111509A TW201740598A (en) | 2017-04-06 | 2017-04-06 | Battery pack and protection elements thereof providing over-current, over-voltage or over-temperature protection functions and capable of bearing high charging/discharging current |
??106111509 | 2017-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201838227A TW201838227A (en) | 2018-10-16 |
TWI690111B true TWI690111B (en) | 2020-04-01 |
Family
ID=61022750
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW106111509A TW201740598A (en) | 2017-04-06 | 2017-04-06 | Battery pack and protection elements thereof providing over-current, over-voltage or over-temperature protection functions and capable of bearing high charging/discharging current |
TW107111796A TWI690111B (en) | 2017-04-06 | 2018-04-03 | Protection element and its battery pack |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW106111509A TW201740598A (en) | 2017-04-06 | 2017-04-06 | Battery pack and protection elements thereof providing over-current, over-voltage or over-temperature protection functions and capable of bearing high charging/discharging current |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN108695127B (en) |
TW (2) | TW201740598A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI635300B (en) * | 2017-11-27 | 2018-09-11 | 亞源科技股份有限公司 | Battery management system |
CN107979130A (en) * | 2017-12-05 | 2018-05-01 | 亚瑞源科技(深圳)有限公司 | A kind of battery management system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2067202A1 (en) * | 1990-08-07 | 1992-02-08 | Naruo Yoshioka | Surge absorbing component to protect from overvoltage and overcurrent |
CN103489730A (en) * | 2012-06-12 | 2014-01-01 | 株式会社村田制作所 | Fuse |
CN105474346A (en) * | 2013-08-21 | 2016-04-06 | 迪睿合电子材料有限公司 | Protective element |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101093763A (en) * | 2006-06-19 | 2007-12-26 | 三菱电机株式会社 | Circuit breaker |
KR101755102B1 (en) * | 2015-06-23 | 2017-07-06 | 주식회사 만도 | Bridge assembly |
-
2017
- 2017-04-06 TW TW106111509A patent/TW201740598A/en unknown
-
2018
- 2018-03-30 CN CN201810296102.0A patent/CN108695127B/en active Active
- 2018-04-03 TW TW107111796A patent/TWI690111B/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2067202A1 (en) * | 1990-08-07 | 1992-02-08 | Naruo Yoshioka | Surge absorbing component to protect from overvoltage and overcurrent |
CN103489730A (en) * | 2012-06-12 | 2014-01-01 | 株式会社村田制作所 | Fuse |
CN105474346A (en) * | 2013-08-21 | 2016-04-06 | 迪睿合电子材料有限公司 | Protective element |
Also Published As
Publication number | Publication date |
---|---|
TW201838227A (en) | 2018-10-16 |
TW201740598A (en) | 2017-11-16 |
CN108695127A (en) | 2018-10-23 |
CN108695127B (en) | 2020-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3692042B2 (en) | Secondary battery with protection circuit | |
CN103620703A (en) | Thermal metal oxide varistor circuit protection device | |
TWI648760B (en) | Protection device and battery pack | |
TW201916088A (en) | Protective component and battery pack thereof providing functions of over-current, over-voltage and over-temperature protection and enabling battery pack being subjected to high charging/discharging current | |
CN103943291A (en) | Static suppressor with overcurrent protection functions, and manufacturing method thereof | |
TWI690111B (en) | Protection element and its battery pack | |
KR20130105730A (en) | Circuit protection device | |
TWI689961B (en) | Switching element | |
TWI661456B (en) | Protection device | |
CN106415770B (en) | Cutting member and cutting member circuit | |
CN108879814B (en) | Protection element and battery pack | |
TWI690110B (en) | Compound protection element and battery pack | |
CN106960772B (en) | Protection element and chargeable and dischargeable battery pack | |
TWI689962B (en) | Protection element | |
CN203871099U (en) | Electrostatic suppressor with overcurrent protection function | |
US10895609B2 (en) | Circuit protection device with PTC element and secondary fuse | |
CN108630834B (en) | Composite protection element and battery pack | |
JP3149087U (en) | Surge absorber | |
TWI680605B (en) | Protective element and secondary battery pack | |
CN209344015U (en) | A kind of series combination type overflow protecting element | |
TW201740596A (en) | Protection component and battery pack comprising an insulating shell, a plurality of terminal electrodes and a first over-current protection component | |
US20220262586A1 (en) | Protection element and protection circuit | |
TW202109588A (en) | Combined protection device and battery pack | |
JP4219502B2 (en) | Resistive fuse | |
JP2001319552A (en) | Protective element and its manufacturing method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |