CN201966387U - Two-side contact spring - Google Patents

Two-side contact spring Download PDF

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Publication number
CN201966387U
CN201966387U CN2011200226495U CN201120022649U CN201966387U CN 201966387 U CN201966387 U CN 201966387U CN 2011200226495 U CN2011200226495 U CN 2011200226495U CN 201120022649 U CN201120022649 U CN 201120022649U CN 201966387 U CN201966387 U CN 201966387U
Authority
CN
China
Prior art keywords
contact
making surface
base portion
connecting portion
contact surface
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.)
Expired - Lifetime
Application number
CN2011200226495U
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.)
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 CN2011200226495U priority Critical patent/CN201966387U/en
Application granted granted Critical
Publication of CN201966387U publication Critical patent/CN201966387U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a two-side contact spring, which comprises a base portion. Two ends of the base portion respectively squarely bend at the same side to form a lateral portion, and the top of the lateral portion extends outwards in a spreading mode to form a first connecting portion. The base portion extends outwards to form a third connecting portion, and the third connecting portion and the lateral portion are respectively located on the top face and the bottom face of the base portion. The same lateral side of the lateral portion extends outwards and bends to form a first contact surface and a second contact surface. The first contact surface and the second contact surface of the two-side contact spring are contacted with a terminal, the two contact points of the two contact surfaces are staggered, and both the two contact surfaces have coincidence areas with the terminal. During installation, a contact structure of the terminal is squeezed in to separate the first contact surface and the second contact surface of the spring, so that two contact surfaces of the spring contact with the terminal, double insurance are provided for contact, and breaking phenomena caused by fault of one contact surface can be avoided. Therefore, reliablity of circuit connection of the products can be improved, and high failure rate of the spring caused by production errors can be reduced.

Description

Two-sided contact flat spring
Technical field
The utility model relates to a kind of fire-fighting equipment field that belongs to, and specifically is meant on smoke detector, heat detector, the smoke and temperature inductive combined detector, is 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, applicant's utility model 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.
The utility model content
In view of this, the technical problems to be solved in the utility model 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, the technical solution of the utility model is achieved in that a kind of two-sided contact flat spring, 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 utility model reaches is as follows: the shell fragment of the two-sided contact flat spring of the utility model, 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 utility model 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 utility model;
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 utility model 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 utility model 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 utility model only, is not to be used to limit protection range of the present utility model.

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.
CN2011200226495U 2011-01-20 2011-01-20 Two-side contact spring Expired - Lifetime CN201966387U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200226495U CN201966387U (en) 2011-01-20 2011-01-20 Two-side contact spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200226495U CN201966387U (en) 2011-01-20 2011-01-20 Two-side contact spring

Publications (1)

Publication Number Publication Date
CN201966387U true CN201966387U (en) 2011-09-07

Family

ID=44528939

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200226495U Expired - Lifetime CN201966387U (en) 2011-01-20 2011-01-20 Two-side contact spring

Country Status (1)

Country Link
CN (1) CN201966387U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102176572A (en) * 2011-01-20 2011-09-07 河北北大青鸟环宇消防设备有限公司 Double-faced contact elastic sheet
CN103311710A (en) * 2012-03-16 2013-09-18 株式会社牧田 Terminal structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102176572A (en) * 2011-01-20 2011-09-07 河北北大青鸟环宇消防设备有限公司 Double-faced contact elastic sheet
CN103311710A (en) * 2012-03-16 2013-09-18 株式会社牧田 Terminal structure
US9112292B2 (en) 2012-03-16 2015-08-18 Makita Corporation Terminal structure

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 100871, A, building 207, Beida Jade Bird building, No. Fu Cheng Road, Beijing, China

Patentee after: Hebei Beida Jade Bird Universal fire fighting equipment Limited by Share Ltd

Address before: 100871, A, building 207, Beida Jade Bird building, No. Fu Cheng Road, Beijing, China

Patentee before: Hebei Beida Jade Bird Universal Fire Alarm Device Co., Ltd.

Address after: 100871, A, building 207, Beida Jade Bird building, No. Fu Cheng Road, Beijing, China

Patentee after: Beida Jade Bird Universal Fire Alarm Device Co., Ltd.

Address before: 100871, A, building 207, Beida Jade Bird building, No. Fu Cheng Road, Beijing, China

Patentee before: Hebei Beida Jade Bird Universal fire fighting equipment Limited by Share Ltd

CX01 Expiry of patent term

Granted publication date: 20110907

CX01 Expiry of patent term