CN104022386A - Watchband type touch finger and plug - Google Patents
Watchband type touch finger and plug Download PDFInfo
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- CN104022386A CN104022386A CN201310065864.7A CN201310065864A CN104022386A CN 104022386 A CN104022386 A CN 104022386A CN 201310065864 A CN201310065864 A CN 201310065864A CN 104022386 A CN104022386 A CN 104022386A
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- contact
- fingertip
- jaw
- plug
- finger
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Abstract
The invention provides a watchband type touch finger, including a master slice including a first surface and a second surface; and a touch finger unit which refers to at least one conductor and is connected with the master slice, the touch finger including at least one first contact end extending towards the first surface side and at least one second contact end extending towards the second surface site. The invention also provides a plug using the abovementioned watchband type touch finger. According to the watchband type touch finger in the invention, a conductive capability is improved, and the volume of the touch finger is reduced, thereby facilitating manufacture and installation, and satisfying the development direction of electrical components toward smaller volume and higher reliability.
Description
Technical field
The present invention relates to a kind of electric device, relate in particular to a kind of watchband type contact finger and plug.
Background technology
In current technology, fingertip is applied to electric power system and plug field, mainly in power transmission and transformation line, plays conduction connection function.In electric power system and plug equipment, the concrete structure type of header contact contact is diversified.Whether exist relative motion to be divided into 3 large classes according to contact contact position in operating process: to be slidably connected, static connection is connected with plug.When plug is closed, conventionally ensure between contact, there is enough pressure by the tension of fingertip or pressuring action.
Below taking plug contact as example.Fingertip is as shown in Figure 1 spring touch finger 100, and spring touch finger 100 is arranged between fixed contact 101 and sliding contact 102, is connected with the plug of moving contact 102 for fixed contact 101.The cross section of spring touch finger 100 is annular, and annular spring touch finger 100 is resisted against between the inwall of fixed contact 101 and the outer wall of sliding contact 102, plays electrical connection effect.
The drawback of spring touch finger is as follows:
Spring touch finger and moving contact and fixed contact only have respectively an electric shock, and the flow conductivity after conduction is limited;
Spring touch finger list cross section is annular, takies larger space;
Electric current is through-flow, and path is longer;
Mounting structure is unreasonable, cannot meet the demand of miniaturization and simplification.
Fingertip is as shown in Figure 2 a kind of watchband-shaped contactor 200 of existence, and watchband-shaped contactor 200 is arranged between fixed contact 101 and sliding contact 102, is connected with the plug of moving contact 102 for fixed contact 101.Watchband-shaped contactor 200 is generally solid construction, is formed by the link of multiple fingertips unit.Watchband-shaped contactor 200 is resisted against between the inwall of fixed contact 101 and the outer wall of sliding contact 102, plays electrical connection effect.
The drawback of existing watchband-shaped contactor is as follows:
Fingertip unit is more, volume is larger, takies too much space;
Specified through-current capability is little, short circuit withstand capacity is limited, can not meet the Miniaturization Design under high current requirements;
Stock utilization is not high;
After long-term plug, due to wearing and tearing, contact point is easy to loose contact.
In sum, existing fingertip can not reduce volume and reduce manufacturing cost in the situation that meeting through-current capacity, is not also durable.
Summary of the invention
For solving meeting under through-current capacity reliable prerequisite, reduce fingertip volume and reduce this technical problem of difficulty of processing, the invention provides a kind of watchband type contact finger and plug.
The invention provides a kind of watchband type contact finger, comprising: master slice, described master slice comprises first surface and second surface; Fingertip unit, described fingertip unit is conductor and is no less than one, described fingertip unit is connected with described master slice; Described fingertip unit comprises: the first contact jaw, be at least 1, and described the first contact jaw extends to described first surface one side; The second contact jaw, is at least 1, and described the second contact jaw extends to described second surface one side.
Further, also comprise the fixed teeth of supporting fixing described watchband type contact finger, the position of the corresponding described fingertip of described fixed teeth unit is arranged on the edge of described master slice.
Specifically, described fixed teeth is towards described first surface one side or described second surface one lateral buckling.
Further, described the first contact jaw is 2, and described the second contact jaw is 2, between described the first contact jaw and described the second contact jaw, conducts.
Specifically, described master slice is conductor, and described fingertip unit is connected with described master slice conduction.
The present invention also provides a kind of plug, comprises the first contact and the second contact, also comprises watchband type contact finger as above-mentioned in claim.
And then the first contact jaw of described watchband type contact finger is resisted against the first contact surface or second contact surface of described plug, described the second contact jaw is resisted against described the second contact surface or the first contact surface.
Further, described fixed teeth against with described the first contact or described the second contact.
Further, on described the first contact or described the second contact, be also provided with holddown groove, described fixed teeth is in described holddown groove.
The invention has the beneficial effects as follows: both improved the conductive capability of fingertip, reduced the volume of fingertip simultaneously, made it more easily manufacture and install, met electric component to less, more reliable developing direction.
Brief description of the drawings
Fig. 1 represents a kind of spring touch finger of prior art;
Fig. 2 represents a kind of watchband-shaped contactor of prior art;
Fig. 3 represents the structure of a kind of watchband type contact finger in the embodiment of the present invention;
Fig. 4 represents the end view of the structure of a kind of watchband type contact finger in the embodiment of the present invention;
Fig. 5 represents the structure of the second watchband type contact finger in the embodiment of the present invention;
Fig. 6 represents the end view of the structure of the second watchband type contact finger in the embodiment of the present invention;
Fig. 7 represents the structure of the third watchband type contact finger in the embodiment of the present invention;
Fig. 8 represents the structure of the third watchband type contact finger in the embodiment of the present invention;
Fig. 9 represents the end view of the structure of the 4th kind of watchband type contact finger in the embodiment of the present invention;
Figure 10 represents the structure of a kind of plug in the embodiment of the present invention;
Figure 11 represents the structure of the another kind of plug in the embodiment of the present invention.
Wherein in figure: 100-spring touch finger, 101-fixed contact, 102-moving contact, 200-watchband-shaped contactor, 1-master slice, 2-fingertip unit, 3-the first contact jaw, 3a-the first contact jaw one, 3b-the first contact jaw two, 4-the second contact jaw, 4c-the second contact jaw one, 4d-the second contact jaw two, 5-fixed teeth.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
The invention provides a kind of watchband type contact finger, comprise master slice, described master slice comprises first surface and second surface; Fingertip unit, described fingertip unit is conductor and is no less than one, described fingertip unit is connected with described master slice.Described fingertip unit comprises the first contact jaw, is at least 1, and described the first contact jaw is extended to form to described first surface one side by described fingertip unit; The second contact jaw, is at least 1, and described the second contact jaw is extended to form to described second surface one side by described fingertip unit.
Watchband type contact finger comprises a master slice, connects several fingertip unit on master slice.Master slice is that fingertip unit has played the fixing effect of supporting.The side that fingertip unit extends to the first surface of master slice forms the first contact jaw, and the side that fingertip unit extends to the second surface of master slice forms the second contact jaw.Described fingertip unit is conductor, between such the first contact jaw and the second contact jaw, forms and puts together path.Several fingertip unit, are several conductive paths, have increased like this conduction flow of fingertip.Meanwhile, master slice is sheet, has also reduced to install the space taking.Because the first contact jaw and the second contact jaw are extended and formed by fingertip unit, so just can obtain different shapes according to the degree of extension, thereby can increase contact point and the contact strength of contact jaw.This design can make fingertip more stable and reliable under operating mode.
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
With reference to the execution mode of a kind of watchband type contact finger structure shown in Fig. 3 and Fig. 4.Master slice 1 is foil, generally selects copper material.Copper conduct electricity very well and material is softer, ductility is good.On master slice 1, connect the fingertip unit 2 that several are arranged in parallel.
With further reference to Fig. 4, the side that fingertip unit 2 extends to the first surface of master slice 1 forms the first contact jaw 3, and the side that fingertip unit 2 extends to the second surface of master slice 1 forms the second contact jaw 4.In the middle of the first contact jaw 3, be processed with a little groove, the first contact jaw is divided into two, and the contact-making surface of the first contact jaw 3 be plane layout.The second contact jaw 4 is set to 2.Two the second contact jaws 4 and first contact jaw 3 form " recessed " shape current path.Electric current can flow to respectively two the second contact jaws 3 from the first contact jaw 4 respectively.
With further reference to Fig. 3, fingertip also comprises fixed teeth 5, and the position of the corresponding described fingertip of fixed teeth 5 unit is arranged on the edge of master slice 1.One group of fixed teeth 5 is set respectively in master slice 1 two edges.And two groups of fixed teeth 5 correspondence settings.In the middle of upper and lower two corresponding fixed teeth 5, it is fingertip unit 2.Fixed teeth 5 and bear very little contact, so contact resistance is very little, shunting hardly.Fixed teeth 5 is non-conductive, plays the effect of supporting fixing watchband type contact finger.With further reference to Fig. 4, fixed teeth 5 is towards described first surface one lateral buckling.
Introduce advantage and the assembling mode of this structure in conjunction with the execution mode of a kind of watchband type contact finger structure shown in Fig. 3 and Fig. 4.Master slice is selected scale copper, utilizes mould to strike out and be no less than 1 the first contact jaw (this is 2) to the first surface of master slice, utilizes mould to strike out and be no less than 1 the first contact jaw (this is 2) to the second surface of master slice.Can obtain thus, what fingertip unit was master slice is stamped to form, and inevitable conducting between the first contact jaw of this fingertip unit and the second contact jaw has so just formed the conducting function of fingertip.In addition master slice is copper material, can conduct electricity, so, also form conductive path without the first contact jaw of fingertip unit and the second contact jaw of other fingertip unit.Such design, has just greatly increased the conductive capability of fingertip.Because it is very thin that copper sheet can be processed, so that this watchband type contact finger can be made is very little, the processing mode of punching press is also easy to realize.And contact jaw is for spring-piece type designs, so just can strengthen the adhesive force that contacts of fingertip and plug.
Fixed teeth can be connected with master slice for master slice is stamped to form afterwards.Consider the situation of actual production, strike out with master slice that the mode of fixed teeth is both economical and production efficiency is high.
With reference to the execution mode of a kind of watchband type contact finger structure shown in Fig. 5 and Fig. 6.Different from shown in Fig. 3 and Fig. 4, the second contact jaw 4 is an entirety.In the middle of the first contact jaw 3, be processed with a little groove, the first contact jaw is divided into two.In the middle of the second contact jaw 4, be processed with a little groove, the second contact jaw is divided into two.Two the second contact jaws 4 and two the first contact jaws 3 form " returning " shape current path.The contact-making surface of the second contact jaw 4 and the first contact jaw 3 is plane, has increased like this contact point, thereby has strengthened the conductive capability of fingertip.
With reference to the execution mode of a kind of watchband type contact finger structure shown in Fig. 9.Fingertip unit comprises two the first contact jaws 3 and two the second contact jaws 4.Different from shown in Fig. 3 and Fig. 4, the first contact jaw 3 is not an entirety.One of them first contact jaw 1 and second contact jaw 2 conductive communication, another the first contact jaw 1 and another the second contact jaw 2 conductive communication.Two current paths are so just formed.The kneading that such design is also conducive to fingertip unit and contact has also increased flow conductivity.
With reference to Fig. 7 and Fig. 8, the advantage that in the contrast embodiment of the present invention, fingertip unit comprises two the first contact jaws.Fingertip unit comprises two the first contact jaws 3 and two the second contact jaws 4.Electric current divides two-way, flows to the second contact jaw 1 4c point and the first contact jaw two 3b flow to the second contact jaw two 4d respectively through the first contact jaw one 3a.
In the time that the powerful short circuit current of electrical network is flowed through fingertip unit shown in Fig. 7 and Fig. 8, compared with only having first contact jaw 3, the short circuit current I of each electrical pickoff of flowing through
k2electric current I will equal to only have first contact jaw 3 time
k150%.I
K2=0.5I
K1
When having the material, structural dimensions of fingertip unit of two the first contact jaws 3 and work decrement and only having first contact jaw 3 when identical, there is the contact pressure F of the each contact jaw in fingertip unit of two the first contact jaws 3
j2for only having the fingertip unit contact jaw pressure F of first contact jaw 3
j1half:
F
j2=0.5F
j1
Cause thus the contact resistance R of the each contact jaw in fingertip unit that comprises two the first contact jaws 3
j2than the fingertip unit contact jaw contact resistance R that only has first contact jaw 3
j1want large:
R
j2=k/F
j2 0.5=k/(0.5Fj1)
0.5=k/0.25F
j1 0.5=1.41k/F
j1 0.5=1.41R
j1;
Can be obtained fom the above equation:
U
k2=I
k2*R
j2=0.5I
k1*1.41R
j1=0.705I
k1*R
j1=0.705U
k1;
From above-mentioned calculating, when the hot melt state of contact point is identical, also work as the U containing the fingertip unit of two the first contact jaws 3
k2the U of the fingertip unit that only has first contact jaw 3 compares
k1when identical, promote 40% containing the fingertip unit short circuit current of two the first contact jaws 3.
The enforcement structure of four kinds of fingertip unit is in sum as just the present invention program's reference example, and in practical application, is not limited to above-mentioned four kinds of modes.In general, the first contact jaw is at least 1, and the second contact jaw is at least 1, between described the first contact jaw and described the second contact jaw, conducts.Such structure is the present invention's fingertip cellular construction required for protection.
With reference to Figure 10 and Figure 11, the embodiment of the plug providing of the present invention.Not a kind of plug-pull plug of plug, comprises fixed contact 101 and moving contact 102, also comprises watchband type contact finger described above.
Specifically, referring to Figure 10, the first contact jaw 3 of watchband type contact finger is resisted against moving contact 102 surfaces of plug, and the second contact 4 ends are resisted against fixed contact 101 surfaces.Fixed teeth 5 is resisted against in the groove of fixed contact 101.
Specifically, referring to Figure 11, the first contact jaw 3 of watchband type contact finger is resisted against fixed contact 101 surfaces of plug, and the second contact 4 end points lean against moving contact 102 surfaces.Fixed teeth 5 is resisted against in the groove of moving contact 102.
The mode that above two kinds of watchband type contact fingers are installed is only a kind of preferred mode, and fixed teeth can also adopt other modes to be connected with contact.
Above-described is the preferred embodiment of the present invention; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite of the present invention, these improvements and modifications are also in protection scope of the present invention.
Claims (10)
1. a watchband type contact finger, is characterized in that, comprising:
Master slice, described master slice comprises first surface and second surface;
Fingertip unit, described fingertip unit is conductor and is no less than one, described fingertip unit is connected with described master slice;
Described fingertip unit comprises:
The first contact jaw, is at least 1, and described the first contact jaw extends to described first surface one side;
The second contact jaw, is at least 1, and described the second contact jaw extends to described second surface one side.
2. watchband type contact finger as claimed in claim 1, is characterized in that, also comprises the fixed teeth of supporting fixing described watchband type contact finger, and the position of the corresponding described fingertip of described fixed teeth unit is arranged on the edge of described master slice.
3. watchband type contact finger as claimed in claim 2, is characterized in that, described fixed teeth is towards described first surface one side or described second surface one lateral buckling.
4. watchband type contact finger as claimed in claim 1, is characterized in that, described the first contact jaw is 2, and described the second contact jaw is 2, between described the first contact jaw and described the second contact jaw, conducts.
5. watchband type contact finger as claimed in claim 1, is characterized in that, described master slice is conductor, and described fingertip unit is connected with described master slice conduction.
6. a plug, comprises the first contact and the second contact, it is characterized in that, also comprises watchband type contact finger as claimed in claim 1.
7. plug as claimed in claim 6, is characterized in that, also comprises the fixed teeth of supporting fixing described watchband type contact finger, and the position of the corresponding described fingertip of described fixed teeth unit is arranged on the edge of described master slice.
8. plug as claimed in claim 6, is characterized in that, the first contact jaw of described watchband type contact finger is resisted against the first contact surface or second contact surface of described plug, and described the second contact jaw is resisted against described the second contact surface or the first contact surface.
9. plug as claimed in claim 7, is characterized in that, described fixed teeth and described the first contact or described the second contact.
10. plug as claimed in claim 9, is characterized in that, on described the first contact or described the second contact, is also provided with holddown groove, and described fixed teeth is in described holddown groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065864.7A CN104022386A (en) | 2013-03-01 | 2013-03-01 | Watchband type touch finger and plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065864.7A CN104022386A (en) | 2013-03-01 | 2013-03-01 | Watchband type touch finger and plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104022386A true CN104022386A (en) | 2014-09-03 |
Family
ID=51439022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310065864.7A Pending CN104022386A (en) | 2013-03-01 | 2013-03-01 | Watchband type touch finger and plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104022386A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787010A (en) * | 2019-01-29 | 2019-05-21 | 威腾电气集团股份有限公司 | A kind of bus duct U-shaped conductor connected structure and transition are conductively connected the connected structure of row |
| CN109830839A (en) * | 2019-01-23 | 2019-05-31 | 武汉华仪智能设备有限公司 | A kind of quick plug-in intermediate conversion connector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501466A (en) * | 1977-05-27 | 1985-02-26 | Westinghouse Electric Corp. | High current contact |
| CN1111834A (en) * | 1994-03-21 | 1995-11-15 | Cinch连接装置股份公司 | Female electrical contact member background of the invention |
| US6024611A (en) * | 1996-07-19 | 2000-02-15 | Abb Sace S.P.A. | Circuit breaker with detachable contacts |
| CN2788424Y (en) * | 2005-05-20 | 2006-06-14 | 正泰电气股份有限公司 | Watchband type contact finger connecting device |
| CN201622940U (en) * | 2010-03-08 | 2010-11-03 | 天津市百利开关设备有限公司 | Watchband type contact finger conducting device |
| CN202523877U (en) * | 2012-03-28 | 2012-11-07 | 特变电工（上海）中发依帕超高压电器有限公司 | Watchband type contact finger connecting device for GIS |
| CN203277734U (en) * | 2013-03-01 | 2013-11-06 | 张正周 | Watchband-style contact finger and plug |
-
2013
- 2013-03-01 CN CN201310065864.7A patent/CN104022386A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501466A (en) * | 1977-05-27 | 1985-02-26 | Westinghouse Electric Corp. | High current contact |
| CN1111834A (en) * | 1994-03-21 | 1995-11-15 | Cinch连接装置股份公司 | Female electrical contact member background of the invention |
| US6024611A (en) * | 1996-07-19 | 2000-02-15 | Abb Sace S.P.A. | Circuit breaker with detachable contacts |
| CN2788424Y (en) * | 2005-05-20 | 2006-06-14 | 正泰电气股份有限公司 | Watchband type contact finger connecting device |
| CN201622940U (en) * | 2010-03-08 | 2010-11-03 | 天津市百利开关设备有限公司 | Watchband type contact finger conducting device |
| CN202523877U (en) * | 2012-03-28 | 2012-11-07 | 特变电工（上海）中发依帕超高压电器有限公司 | Watchband type contact finger connecting device for GIS |
| CN203277734U (en) * | 2013-03-01 | 2013-11-06 | 张正周 | Watchband-style contact finger and plug |
Non-Patent Citations (2)
| Title |
|---|
| 李健: "浅析弹簧触指在GIS 中的应用", 《高压电器》, vol. 43, no. 6, 31 December 2007 (2007-12-31) * |
| 陈伯荣: "带状触指级进模设计", 《金属加工》, no. 14, 31 December 2008 (2008-12-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830839A (en) * | 2019-01-23 | 2019-05-31 | 武汉华仪智能设备有限公司 | A kind of quick plug-in intermediate conversion connector |
| CN109787010A (en) * | 2019-01-29 | 2019-05-21 | 威腾电气集团股份有限公司 | A kind of bus duct U-shaped conductor connected structure and transition are conductively connected the connected structure of row |
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Application publication date: 20140903 |
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