US20090017673A1 - Battery connector with improved contact - Google Patents
Battery connector with improved contact Download PDFInfo
- Publication number
- US20090017673A1 US20090017673A1 US12/217,179 US21717908A US2009017673A1 US 20090017673 A1 US20090017673 A1 US 20090017673A1 US 21717908 A US21717908 A US 21717908A US 2009017673 A1 US2009017673 A1 US 2009017673A1
- Authority
- US
- United States
- Prior art keywords
- conductive contact
- receiving cavity
- battery
- dielectric housing
- spring arm
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/216—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for button or coin cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention is generally related to a battery connector, and especially, to a button cell battery connector with improved contact.
- a button cell battery is usually used in an electrical apparatus, for example a computer, provided as an auxiliary power source.
- This battery comprises a cathode on a lower face and an anode on an upper face and a peripheral face.
- a battery connector is usually provided on a mother board to mount the battery therein to establish an electrical connection between the battery and the mother board.
- the battery connector comprises a dielectric housing defining a receiving cavity for retaining the battery therein, anode and cathode contacts respectively secured on the dielectric housing and electrically connected with the mother board.
- the anode contact is disposed on a side wall of the receiving cavity and can elastically move along a lateral direction while the cathode contact is disposed on a bottom of the receiving cavity and can elastically move along the vertical direction.
- the button cell battery is usually small, and in order to meet a low profile feature of the electrical apparatus using battery, the battery connector can't be made too high.
- the space in the connector is narrow, which makes the spring section of the contact often short and induces the stress concentration, and causes permanent deformation so as to destroy the contact.
- an object of the present invention is to provide a battery connector for mounting a button cell battery.
- a battery connector comprises a dielectric housing, first and second conductive contacts; the dielectric housing defines a receiving cavity for holding a battery therein; the first conductive contact is secured in said dielectric housing and comprises a contacting section facing said receiving cavity; the second conductive contact is secured in said dielectric housing, comprises a first spring arm inclining upwardly toward a center of said receiving cavity, and at least a spring arm inclining downwardly from an upper end of said first spring arm giving a reinforce spring strength to said upper end of said first spring arm.
- the battery pushes the second conductive contact, the first and second spring arms are all elastically deformed, so the stress spreads around the first and second spring arms. Since the total length of the first and second spring arms is long, the stress is well spread, the elasticity of the second conductive contact is good, the second conductive contact can exert an enough strength to contact the battery and to hold the battery in place and will not be permanent deformed.
- FIG. 1 is an exploded, perspective view of a battery connector of a preferred embodiment of the present invention
- FIG. 2 is an assembled, perspective view of the battery connector as shown in FIG. 1 ;
- FIG. 3 is another perspective view of the battery connector as shown in FIG. 2 .
- a battery connector 1 comprises a dielectric housing 2 , a first conductive contact 3 and a second conductive contact 4 .
- the dielectric housing 2 defines a cylindrical receiving cavity 20 for holding a battery (not shown) therein.
- the receiving cavity 20 comprises a stopper 22 on an upper edge, a cutout 26 in the side wall opposite to the stopper 22 , and a pair of holder 24 on an upper section of the side wall adjacent to the cutout 26 .
- the stopper 22 accompany with the pair of holder 24 can secure the battery (not shown) in position.
- a tool, or a finger can eject the mounted battery (not shown) out through the cutout 26 .
- the first conductive contact 3 secured in said dielectric housing 2 on a side wall of the receiving cavity 20 , comprises a retaining section 30 , a pair of arms 34 symmetrically extending from opposite sides of said retaining section 30 , and a connecting portion 32 extending through said opening from the lower side of said retaining section 30 ; wherein the contacting section (not labeled) of the pair of arms 34 facing said receiving cavity 20 , it can contact with the battery (not shown) mounted in the battery connector 1 , and can give a force to eject out the battery (not shown) when dismount the battery (not shown).
- the second conductive contact 4 secured in said dielectric housing 2 on the bottom of said receiving cavity 20 , comprises a second retaining section 40 secured in said dielectric housing 2 near the edge of the receiving cavity 20 opposite to the first conductive contact 3 , a second connecting portion 44 extending downwardly from a second retaining section 40 , a first spring arm 41 inclining upwardly toward the center of said receiving cavity 20 with its lower end connected with said second retaining section 40 , a contacting section 42 connected with the upper end of the first spring arm 41 , and a pair of second spring arms 46 inclining downwardly from the contacting section 42 resisting the bottom surface of said receiving cavity 20 giving a reinforce spring strength to said upper end of said first spring arm 41 .
- the battery pushes the contacting section 42 of the second conductive contact 4 , the free and of the second spring arm 46 constantly engages the bottom face in the receiving cavity.
- the inclining upwardly first spring arm 41 and the inclining downwardly pair of second spring arms 46 are all elastically deformed, so the stress spreads around the first spring arm 41 and the pair of second spring arms 46 . Since the total length of the first spring arm 41 and the pair of second spring arms 46 is long, the stress is well spread, the elasticity of the second conductive contact 4 is good, the second conductive contact 4 can exert an enough strength to contact the battery (not shown) and to hold the battery (not shown) in place and will not be permanent deformed.
- the bottom surface of said receiving cavity 20 defines a recess 27 right below the contacting section 42 of the second conductive contact 4 , the recess 27 has a shape such that the further the recess leaves away from the retaining section 40 the deeper it will be, it can contain the contacting section 42 when the battery is mounted.
- the bottom surface of said receiving cavity 20 further defines a pair of projections beside the recess 27 . The a pair of projections is higher than the lower end of the contacting section 42 , so it can protect the lower end of the contacting section 42 from destruction when pressed by a mounted battery.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A battery connector (1) comprises a dielectric housing (2), a first conductive contact (3) and a second conductive contact (4). The dielectric housing (2) defines a cylindrical receiving cavity (20) for holding a battery therein. The first conductive contact (3), secured in said dielectric housing (2) on a side wall of the receiving cavity (20), comprises a contacting section (34) facing said receiving cavity (20). The second conductive contact (4), secured in said dielectric housing (2), comprises a first spring arm (41) inclining upwardly toward the center of said receiving cavity (20), and a pair of second spring arms (46) inclining downwardly from the upper end of the first spring arm (41) giving a reinforce spring strength to said upper end of said first spring arm (41).
Description
- 1. Field of the invention
- The present invention is generally related to a battery connector, and especially, to a button cell battery connector with improved contact.
- 2. Description of Related Art
- A button cell battery is usually used in an electrical apparatus, for example a computer, provided as an auxiliary power source. This battery comprises a cathode on a lower face and an anode on an upper face and a peripheral face.
- A battery connector is usually provided on a mother board to mount the battery therein to establish an electrical connection between the battery and the mother board. The battery connector comprises a dielectric housing defining a receiving cavity for retaining the battery therein, anode and cathode contacts respectively secured on the dielectric housing and electrically connected with the mother board. The anode contact is disposed on a side wall of the receiving cavity and can elastically move along a lateral direction while the cathode contact is disposed on a bottom of the receiving cavity and can elastically move along the vertical direction. The button cell battery is usually small, and in order to meet a low profile feature of the electrical apparatus using battery, the battery connector can't be made too high. The space in the connector is narrow, which makes the spring section of the contact often short and induces the stress concentration, and causes permanent deformation so as to destroy the contact.
- Hence, an improved battery connector is required to overcome the disadvantages of the prior art.
- Accordingly, an object of the present invention is to provide a battery connector for mounting a button cell battery.
- In order to achieve the above-mentioned object, a battery connector comprises a dielectric housing, first and second conductive contacts; the dielectric housing defines a receiving cavity for holding a battery therein; the first conductive contact is secured in said dielectric housing and comprises a contacting section facing said receiving cavity; the second conductive contact is secured in said dielectric housing, comprises a first spring arm inclining upwardly toward a center of said receiving cavity, and at least a spring arm inclining downwardly from an upper end of said first spring arm giving a reinforce spring strength to said upper end of said first spring arm.
- When mounted, the battery pushes the second conductive contact, the first and second spring arms are all elastically deformed, so the stress spreads around the first and second spring arms. Since the total length of the first and second spring arms is long, the stress is well spread, the elasticity of the second conductive contact is good, the second conductive contact can exert an enough strength to contact the battery and to hold the battery in place and will not be permanent deformed.
- Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.
-
FIG. 1 is an exploded, perspective view of a battery connector of a preferred embodiment of the present invention; -
FIG. 2 is an assembled, perspective view of the battery connector as shown inFIG. 1 ; and -
FIG. 3 is another perspective view of the battery connector as shown inFIG. 2 . - Reference will now be made in detail to the preferred embodiment of the present invention.
- Referring to
FIGS. 1-3 , abattery connector 1 comprises adielectric housing 2, a firstconductive contact 3 and a secondconductive contact 4. Thedielectric housing 2 defines acylindrical receiving cavity 20 for holding a battery (not shown) therein. Thereceiving cavity 20 comprises astopper 22 on an upper edge, acutout 26 in the side wall opposite to thestopper 22, and a pair ofholder 24 on an upper section of the side wall adjacent to thecutout 26. Thestopper 22 accompany with the pair ofholder 24 can secure the battery (not shown) in position. A tool, or a finger, can eject the mounted battery (not shown) out through thecutout 26. - The first
conductive contact 3, secured in saiddielectric housing 2 on a side wall of thereceiving cavity 20, comprises aretaining section 30, a pair ofarms 34 symmetrically extending from opposite sides of saidretaining section 30, and a connectingportion 32 extending through said opening from the lower side of saidretaining section 30; wherein the contacting section (not labeled) of the pair ofarms 34 facing said receivingcavity 20, it can contact with the battery (not shown) mounted in thebattery connector 1, and can give a force to eject out the battery (not shown) when dismount the battery (not shown). - The second
conductive contact 4, secured in saiddielectric housing 2 on the bottom of said receivingcavity 20, comprises asecond retaining section 40 secured in saiddielectric housing 2 near the edge of thereceiving cavity 20 opposite to the firstconductive contact 3, a second connectingportion 44 extending downwardly from asecond retaining section 40, afirst spring arm 41 inclining upwardly toward the center of said receivingcavity 20 with its lower end connected with saidsecond retaining section 40, acontacting section 42 connected with the upper end of thefirst spring arm 41, and a pair ofsecond spring arms 46 inclining downwardly from the contactingsection 42 resisting the bottom surface of said receivingcavity 20 giving a reinforce spring strength to said upper end of saidfirst spring arm 41. - When mounted, the battery (not shown) pushes the contacting
section 42 of the secondconductive contact 4, the free and of thesecond spring arm 46 constantly engages the bottom face in the receiving cavity. The inclining upwardlyfirst spring arm 41 and the inclining downwardly pair ofsecond spring arms 46 are all elastically deformed, so the stress spreads around thefirst spring arm 41 and the pair ofsecond spring arms 46. Since the total length of thefirst spring arm 41 and the pair ofsecond spring arms 46 is long, the stress is well spread, the elasticity of the secondconductive contact 4 is good, the secondconductive contact 4 can exert an enough strength to contact the battery (not shown) and to hold the battery (not shown) in place and will not be permanent deformed. - The bottom surface of said receiving
cavity 20 defines arecess 27 right below the contactingsection 42 of the secondconductive contact 4, therecess 27 has a shape such that the further the recess leaves away from theretaining section 40 the deeper it will be, it can contain the contactingsection 42 when the battery is mounted. The bottom surface of said receivingcavity 20 further defines a pair of projections beside therecess 27. The a pair of projections is higher than the lower end of the contactingsection 42, so it can protect the lower end of the contactingsection 42 from destruction when pressed by a mounted battery. - While a preferred embodiment in accordance with the present invention has been shown and described, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present invention are considered within the scope of the present invention as described in the appended claims.
Claims (13)
1. A battery connector comprising:
a dielectric housing defining a receiving cavity for holding a battery therein;
a first conductive contact secured in said dielectric housing and comprising a contacting section facing said receiving cavity; and
a second conductive contact secured in said dielectric housing, comprising a first spring arm inclining upwardly toward a center of said receiving cavity, and at least a second spring arm inclining backwardly and downwardly from an upper end of said first spring arm giving a reinforce spring strength to said upper end of said first spring arm.
2. The battery connector as described in claim 1 , wherein said receiving cavity of the dielectric housing is cylindrical, said first conductive contact is secured on a side wall of the receiving cavity.
3. The battery connector as described in claim 2 , wherein said dielectric housing defines a stopper above said first conductive contact, a cutout in a side wall of the housing opposite to said first conductive contact, and a holder on an upper section of the side wall adjacent to said cutout.
4. The battery connector as described in claim 3 , wherein said dielectric housing defines an opening in the bottom surface through which the first conductive contact is assembled into said dielectric housing, said first conductive contact comprises a retaining section, a pair of arms symmetrically extending from opposite sides of said retaining section, and a connecting portion extending through said opening from a lower side of said retaining section.
5. The battery connector as described in claim 4 , wherein said second conductive contact comprises a second retaining section secured in said dielectric housing near an edge of the receiving cavity opposite to the first conductive contact, a second connecting portion extending downwardly from the second retaining section, and a contacting section connected with the upper end of said first spring arm, a lower end of said first spring arm connected to said second retaining section.
6. The battery connector as described in claim 5 , wherein the bottom surface of said receiving cavity defines projections for protecting the lower end of the contacting section from destruction when pressed by a mounted battery.
7. A battery holder comprising:
a dielectric housing defining a receiving cavity;
a conductive contact comprising:
a retaining section mounted on a peripheral area of the receiving cavity;
a first spring arm extending from the retaining section toward the cavity; and
a second spring arm extending backwardly from a distal end of the first spring arm, a free end of said second spring arm engages a bottom face in the receiving cavity when a battery is loaded in the receiving cavity.
8. The battery connector as described in claim 7 , wherein said receiving cavity of the dielectric housing is round, said battery connector further comprises a first conductive contact secured on a side wall of the receiving cavity, comprising a contacting section facing said receiving cavity.
9. The battery connector as described in claim 8 , wherein said dielectric housing defines a stopper above said first conductive contact, a cutout in a side wall of the housing opposite to said first conductive contact, and a holder on an upper section of the side wall adjacent to said cutout.
10. The battery connector as described in claim 9 , wherein said dielectric housing defines an opening in the bottom surface through which the first conductive contact is assembled into said dielectric housing, said first conductive contact comprises a retaining section, a pair of arms symmetrically extending from opposite sides of said retaining section, and a connecting portion extending through said opening from a lower side of said retaining section.
11. The battery connector as described in claim 10 , wherein said second conductive contact comprises a second retaining section secured in said dielectric housing near an edge of the receiving cavity opposite to the first conductive contact, a second connecting portion extending downwardly from the second retaining section, and a contacting section connected with the upper end of said first spring arm, a lower end of said first spring arm connected to said second retaining section.
12. The battery connector as described in claim 1 , wherein the bottom surface of said receiving cavity defines projections for protecting the lower end of the contacting section from destruction when pressed by a mounted battery.
13. A battery connector comprising:
an insulative housing defining a bottom wall and a circular circumferential wall commonly defining an upward battery receiving space;
a contact including:
a leg extending downwardly through the bottom wall;
a contact arm extending upwardly and obliquely from the leg with a contacting region at a distal end region thereof; and
an auxiliary arm extending downwardly and obliquely from the contacting region with thereof another distal end region closer to the bottom wall than the contacting region under a condition that said another distal end region is configured to abut against the bottom wall when the battery is loaded into the battery receiving space.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200720040632.6 | 2007-07-10 | ||
CNU2007200406326U CN201113124Y (en) | 2007-07-10 | 2007-07-10 | Battery connector |
Publications (2)
Publication Number | Publication Date |
---|---|
US7473126B1 US7473126B1 (en) | 2009-01-06 |
US20090017673A1 true US20090017673A1 (en) | 2009-01-15 |
Family
ID=39964866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/217,179 Expired - Fee Related US7473126B1 (en) | 2007-07-10 | 2008-07-01 | Battery connector with improved contact |
Country Status (2)
Country | Link |
---|---|
US (1) | US7473126B1 (en) |
CN (1) | CN201113124Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100304251A1 (en) * | 2009-05-26 | 2010-12-02 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | System and method of operating an electrical energy storage device or an electrochemical energy generation device using thermal conductivity materials based on mobile device states and vehicle states |
US8057255B1 (en) * | 2010-10-01 | 2011-11-15 | Honda Motor Co., Ltd. | Connector with a battery sandwiched between a housing and a printed circuit board |
US10287311B2 (en) | 2003-05-30 | 2019-05-14 | Gilead Pharmasset Llc | Modified fluorinated nucleoside analogues |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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TWM280543U (en) * | 2005-05-17 | 2005-11-11 | Top Yang Technology Entpr Co | Cell holder |
US7384277B1 (en) * | 2006-12-17 | 2008-06-10 | Formfactor, Inc. | Reinforced contact elements |
US20120087096A1 (en) * | 2010-10-07 | 2012-04-12 | Chu-Ping Shen | Power Structure of Electronic Products |
US9263716B2 (en) * | 2013-02-21 | 2016-02-16 | Lutron Electronics Co., Inc. | Monolithic battery holder having resilient retention strap for use in battery-powered sensor |
JP6156780B2 (en) * | 2013-11-11 | 2017-07-05 | 株式会社デンソー | Button type battery terminal |
CN104466056B (en) * | 2014-12-29 | 2017-02-22 | 埃泰克汽车电子(芜湖)有限公司 | Car key battery assembly |
CN205248327U (en) | 2015-12-22 | 2016-05-18 | 上海莫仕连接器有限公司 | Battery connector and circuit module |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5980309A (en) * | 1996-10-31 | 1999-11-09 | The Whitaker Corporation | Battery connector |
US6120328A (en) * | 1997-12-26 | 2000-09-19 | Itt Manufacturing Enterprises, Inc. | Thin smart card connector |
US6398598B2 (en) * | 2000-08-10 | 2002-06-04 | Japan Aviation Electronics Industry, Limited | Electrical connector |
US6551149B2 (en) * | 2000-12-28 | 2003-04-22 | J.S.T. Mfg. Co., Ltd. | Connecting terminal and method of mounting the same onto a circuit board |
US6669504B2 (en) * | 2002-01-03 | 2003-12-30 | Hon Hai Precision Ind. Co., Ltd. | Coin battery connector |
US20050266741A1 (en) * | 2004-05-31 | 2005-12-01 | Japan Aviation Electronics Industry, Limited | Connector which can be reduced in warpage |
US7238045B1 (en) * | 2005-12-06 | 2007-07-03 | Giga-Byte Technology Co., Ltd. | Battery-securing structure with setting-cleared elements |
US20070281540A1 (en) * | 2006-06-05 | 2007-12-06 | Hon Hai Precision Ind.Co., Ltd. | Battery connector |
-
2007
- 2007-07-10 CN CNU2007200406326U patent/CN201113124Y/en not_active Expired - Fee Related
-
2008
- 2008-07-01 US US12/217,179 patent/US7473126B1/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5980309A (en) * | 1996-10-31 | 1999-11-09 | The Whitaker Corporation | Battery connector |
US6120328A (en) * | 1997-12-26 | 2000-09-19 | Itt Manufacturing Enterprises, Inc. | Thin smart card connector |
US6398598B2 (en) * | 2000-08-10 | 2002-06-04 | Japan Aviation Electronics Industry, Limited | Electrical connector |
US6551149B2 (en) * | 2000-12-28 | 2003-04-22 | J.S.T. Mfg. Co., Ltd. | Connecting terminal and method of mounting the same onto a circuit board |
US6669504B2 (en) * | 2002-01-03 | 2003-12-30 | Hon Hai Precision Ind. Co., Ltd. | Coin battery connector |
US20050266741A1 (en) * | 2004-05-31 | 2005-12-01 | Japan Aviation Electronics Industry, Limited | Connector which can be reduced in warpage |
US7238045B1 (en) * | 2005-12-06 | 2007-07-03 | Giga-Byte Technology Co., Ltd. | Battery-securing structure with setting-cleared elements |
US20070281540A1 (en) * | 2006-06-05 | 2007-12-06 | Hon Hai Precision Ind.Co., Ltd. | Battery connector |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10287311B2 (en) | 2003-05-30 | 2019-05-14 | Gilead Pharmasset Llc | Modified fluorinated nucleoside analogues |
US20100304251A1 (en) * | 2009-05-26 | 2010-12-02 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | System and method of operating an electrical energy storage device or an electrochemical energy generation device using thermal conductivity materials based on mobile device states and vehicle states |
US8057255B1 (en) * | 2010-10-01 | 2011-11-15 | Honda Motor Co., Ltd. | Connector with a battery sandwiched between a housing and a printed circuit board |
Also Published As
Publication number | Publication date |
---|---|
US7473126B1 (en) | 2009-01-06 |
CN201113124Y (en) | 2008-09-10 |
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Legal Events
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AS | Assignment |
Owner name: HON HAI PRECISION IND. CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, DE-JIN;YUAN, WEI;REEL/FRAME:021242/0291 Effective date: 20080620 |
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REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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FP | Expired due to failure to pay maintenance fee |
Effective date: 20130106 |