CN102176572A - Double-faced contact elastic sheet - Google Patents

Double-faced contact elastic sheet Download PDF

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Publication number
CN102176572A
CN102176572A CN2011100260467A CN201110026046A CN102176572A CN 102176572 A CN102176572 A CN 102176572A CN 2011100260467 A CN2011100260467 A CN 2011100260467A CN 201110026046 A CN201110026046 A CN 201110026046A CN 102176572 A CN102176572 A CN 102176572A
Authority
CN
China
Prior art keywords
contact
making surface
elastic sheet
terminal
base portion
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
Application number
CN2011100260467A
Other languages
Chinese (zh)
Inventor
勾利金
刘超平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Beida Jade Bird Universal Fire Alarm Device Co Ltd
Original Assignee
Hebei Beida Jade Bird Universal Fire Alarm Device Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hebei Beida Jade Bird Universal Fire Alarm Device Co Ltd filed Critical Hebei Beida Jade Bird Universal Fire Alarm Device Co Ltd
Priority to CN2011100260467A priority Critical patent/CN102176572A/en
Publication of CN102176572A publication Critical patent/CN102176572A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a double-faced contact elastic sheet, comprising a base, wherein two ends of the base are respectively right-angle and bent in the same direction to form a side part; the side part extends upwards to form a first connecting part in an expanding shape; the base extends and bends outwards to form a third connecting part; the third connecting part and the side part are respectively arranged on an upper surface and a lower surface of the base; and the same-side end of the side part extends and bends outwards to form a first contact surface and a second contact surface. The elastic sheet is provided with the first and second contact surfaces which are contacted with a terminal; and contact points of the two surfaces contacting with the terminal are staggered and have coincidence areas with the terminal. When a product is installed, the contact structure of the terminal separates the first contact surface from the second contact surface of the elastic sheet so as to contact the two surfaces of the elastic sheet with the terminal, thus realizing double insurances in contact, thereby preventing the phenomenon that breaking occurs due to faults of one contact surface. By using the elastic sheet, the reliability of circuit connection of the product is improved, and the phenomenon that the qualification rate of the elastic sheets is low due to production errors can be reduced.

Description

Two-sided contact flat spring
Technical field
The present invention relates to a kind of fire-fighting equipment field that belongs to, specifically be meant on smoke detector, heat detector, the smoke and temperature inductive combined detector, be used to realize the two-sided contact flat spring of conducting function.
Background technology
On fire detector, shell fragment is provided, and power supply has two kinds of connected modes usually to wiring board, and a kind of is welding manner; A kind of is by the screw fastening means, and this dual mode its technology when producing is all very complicated, if the product of producing in batches, production efficiency is very low, and the dismounting of wiring board is also inconvenient.So the applicant has invented the elasticity ways of connecting, but a face and termination contact are arranged usually, such as disclosed applicant's utility model patent CN201638945.Seldom a part of two-sided contact flat spring that is is also arranged, still all have unreliable factor.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of two-sided contact flat spring, and the conduction switching performance between the detector terminal is stable, the reliability height.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that a kind of two-sided contact flat spring, and shell fragment comprises base portion, and the rectangular respectively homonymy in the two ends of this base portion is bent to form sidepiece, and open-shaped formation first connecting portion outwards extends on this sidepiece; Described base portion crooked the 3rd connecting portion that constitutes that stretches out, the 3rd connecting portion and sidepiece lay respectively at the upper and lower surfaces of described base portion; The same side of described two sidepieces stretch out respectively crooked constitute first contact-making surface and second contact-making surface.
The middle part of described first contact-making surface and second contact-making surface is slightly drawn close to the center position bending of described base portion, and end is and outwards opens shape.
The deflection that produces after described end is under pressure is 0.8-1mm.
Described first contact-making surface and second contact-making surface stagger.
The end shape of described the 3rd connecting portion is a zigzag.
The technique effect that the present invention reaches is as follows: the shell fragment of the two-sided contact flat spring of the present invention, have first, second two contact-making surfaces and termination contact, and stagger staggeredly with the contact point of two faces of termination contact, and all overlap the zone with terminal.When product is installed, the contact structures of terminal are squeezed out connection with the space between first, second two contacts of shell fragment with both, two contact-making surfaces of shell fragment and termination contact realize double insurance in contact, prevent that one of them contact-making surface from causing breaking phenomena when breaking down.Therefore, the two-sided contact flat spring of the present invention has promptly improved the reliability that product circuit connects, and prevents that again the phenomenon that can't use has been saved production cost because the production error of a contact-making surface causes shell fragment disqualification rate height.
Description of drawings
Fig. 1 is the structural representation of the two-sided contact flat spring of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is another angle schematic diagram of Fig. 1.
Embodiment
As shown in Figure 1-Figure 3, for the present invention is used to feel shell fragment 1 on cigarette, temperature-sensitive or the temperature-sensitive sense cigarette mix probe, shell fragment 1 comprises base portion 15, the two ends of base portion 15 at right angles symmetry link to each other and to the homotropous sidepiece 16,17 of homonymy, also have outside extension on the sidepiece 16,17 of shell fragment 1 and open formation first connecting portion 11.
The base portion 15 of shell fragment 1 also stretches out and constitutes the 3rd connecting portion 13, the 3rd connecting portion 13 and sidepiece 16,17 lay respectively on two different planes up and down of base portion 15, the end of the 3rd connecting portion 13 is sharp-pointed sharp sawteeth 131, is convenient to be connected with the wiring board insertion.And the middle part of the 3rd connecting portion 13 is an arc-shaped bend, is in order to guarantee that certain elasticity and wiring board are connected and fixed.In the outwardly-bent separately extension of an end of shell fragment 1 sidepiece 16,17, constitute two first contact-making surface 12 and second contact-making surfaces 14 with termination contact.The middle part of first contact-making surface 12 and second contact-making surface 14 is slightly drawn close to the center position bending of base portion 15, and end is and outwards opens shape, the warp architecture of first contact-making surface 12 and second contact-making surface 14 has certain elasticity, and dehiscing between the two is convenient to peg graft and opened, and the deflection that the terminal back that is under pressure produces is 0.8-1mm, has enough elasticity after the distortion.Two faces of first contact-making surface 12 and second contact-making surface and termination contact stagger.Two contact points interlock, and all overlap the zone with terminal.When product is installed, terminal is provided with the contact structures parts that match with first contact-making surface 12 and second contact-making surface, 14 structures, these contact structures are opened both outside squeezing by first contact-making surface 12 and the terminal gap between second contact-making surface 14 of shell fragment 1 under the effect of external force.Realized that shell fragment 1 has first contact-making surface 12 and second contact-making surface 14 to have two faces and termination contact, prevented that one of them from breaking down and cause conducting electricity obstructed situation, promptly in contact with produce technique effect with dual fail-safe.
Shell fragment 1 of the present invention is generally following connection status in the use of fire detector, first connecting portion 11 is connected in the link of detector, offers the slot that adapts with first connecting portion, 11 shapes and structure on this link.First contact-making surface 12 is connected conducting with second contact-making surface 14 with the contact structures of binding post, and binding post connects power line then.The sawtooth 131 of the 3rd connecting portion 13 embeds being coated with in the tin layer of wiring board, and in the present embodiment, sawtooth 131 is provided with two, also number can be set specifically according to circumstances.During work, interconnective path between power line, binding post, shell fragment 1 and the wiring board is finished the function to the wiring board power supply.Because shell fragment 1 and wiring board directly have the embedding interface, wiring board is dismantled easily, is convenient to maintenance.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (5)

1. two-sided contact flat spring, shell fragment comprises base portion, the two ends of this base portion respectively at right angles homonymy be bent to form sidepiece, open-shaped formation first connecting portion outwards extends on this sidepiece; Described base portion crooked the 3rd connecting portion that constitutes that stretches out, the 3rd connecting portion and sidepiece lay respectively at the upper and lower surfaces of described base portion; It is characterized in that the same side of described two sidepieces stretch out respectively crooked constitute first contact-making surface and second contact-making surface.
2. two-sided contact flat spring as claimed in claim 1 is characterized in that, the middle part of described first contact-making surface and second contact-making surface is slightly drawn close to the center position bending of described base portion, and end is and outwards opens shape.
3. two-sided contact flat spring as claimed in claim 2 is characterized in that, described to state first contact-making surface and the second contact-making surface end deflection that the back produces that is under pressure be 0.8-1mm.
4. two-sided contact flat spring as claimed in claim 1 is characterized in that, the contact point of described first contact-making surface and second contact-making surface staggers.
5. two-sided contact flat spring as claimed in claim 1 is characterized in that, the end shape of described the 3rd connecting portion is a zigzag.
CN2011100260467A 2011-01-20 2011-01-20 Double-faced contact elastic sheet Pending CN102176572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100260467A CN102176572A (en) 2011-01-20 2011-01-20 Double-faced contact elastic sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100260467A CN102176572A (en) 2011-01-20 2011-01-20 Double-faced contact elastic sheet

Publications (1)

Publication Number Publication Date
CN102176572A true CN102176572A (en) 2011-09-07

Family

ID=44519692

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100260467A Pending CN102176572A (en) 2011-01-20 2011-01-20 Double-faced contact elastic sheet

Country Status (1)

Country Link
CN (1) CN102176572A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103746210A (en) * 2014-01-22 2014-04-23 广东欧珀移动通信有限公司 Compact bi-directional contact shrapnel structure
CN108808291A (en) * 2018-05-16 2018-11-13 昆山杰顺通精密组件有限公司 Double contact component
CN110867664A (en) * 2019-10-29 2020-03-06 番禺得意精密电子工业有限公司 Power supply terminal assembly
WO2020133095A1 (en) * 2018-12-27 2020-07-02 瑞声声学科技(深圳)有限公司 Contact terminal and speaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416504A (en) * 1979-11-07 1983-11-22 Sochor Jerzy R Contact with dual cantilevered arms with narrowed, complimentary tip portions
CN2786824Y (en) * 2005-04-13 2006-06-07 上海莫仕连接器有限公司 Power supply connector
CN201057611Y (en) * 2007-04-12 2008-05-07 凡甲科技股份有限公司 Improved terminal structure of electric power connector
CN101794936A (en) * 2010-02-11 2010-08-04 河北北大青鸟环宇消防设备有限公司 Elastic sheet used on fire hazard detector
CN201966387U (en) * 2011-01-20 2011-09-07 河北北大青鸟环宇消防设备有限公司 Two-side contact spring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416504A (en) * 1979-11-07 1983-11-22 Sochor Jerzy R Contact with dual cantilevered arms with narrowed, complimentary tip portions
CN2786824Y (en) * 2005-04-13 2006-06-07 上海莫仕连接器有限公司 Power supply connector
CN201057611Y (en) * 2007-04-12 2008-05-07 凡甲科技股份有限公司 Improved terminal structure of electric power connector
CN101794936A (en) * 2010-02-11 2010-08-04 河北北大青鸟环宇消防设备有限公司 Elastic sheet used on fire hazard detector
CN201966387U (en) * 2011-01-20 2011-09-07 河北北大青鸟环宇消防设备有限公司 Two-side contact spring

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103746210A (en) * 2014-01-22 2014-04-23 广东欧珀移动通信有限公司 Compact bi-directional contact shrapnel structure
CN103746210B (en) * 2014-01-22 2016-02-10 广东欧珀移动通信有限公司 A kind of compact type bi-directional contacting shell fragment structure
CN108808291A (en) * 2018-05-16 2018-11-13 昆山杰顺通精密组件有限公司 Double contact component
CN108808291B (en) * 2018-05-16 2020-10-27 昆山杰顺通精密组件有限公司 Double-sided contact assembly
WO2020133095A1 (en) * 2018-12-27 2020-07-02 瑞声声学科技(深圳)有限公司 Contact terminal and speaker
CN110867664A (en) * 2019-10-29 2020-03-06 番禺得意精密电子工业有限公司 Power supply terminal assembly

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Application publication date: 20110907