CN202674125U - Drum-shaped spiral spring - Google Patents
Drum-shaped spiral spring Download PDFInfo
- Publication number
- CN202674125U CN202674125U CN 201220281480 CN201220281480U CN202674125U CN 202674125 U CN202674125 U CN 202674125U CN 201220281480 CN201220281480 CN 201220281480 CN 201220281480 U CN201220281480 U CN 201220281480U CN 202674125 U CN202674125 U CN 202674125U
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- spring
- height
- drum
- compressed
- diameter
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Abstract
The utility model provides a drum-shaped spiral spring suitable for a connector, which comprises wires. The diameters of both ends of the drum-shaped spiral spring are small, and the diameter on the middle part is large; except the relationship between two rings with the maximum diameters at the middle part of the drum-shaped spiral spring, the diameters of the other rings of the drum-shaped spiral spring satisfy the requirement that under a compression condition, inner rings of the drum-shaped spiral spring can be stored gradually inward adjacent outer rings; the maximum outer diameter of the drum-shaped spiral spring ranges from 3.0 mm to 4.0 mm; under the free state of the drum-shaped spiral spring, outwardly counted from the outermost point of the drum-shaped spiral spring at the height of [(wire diameter/2)+0.05mm]+/-0.03mm, the rings of the drum-shaped spiral spring form 3 to 4 spring pitches of the drum-shaped spiral spring; when 3 spring pitches are formed, the pitch ratio ranges from 1:(1.1-1.8):(0.3 -1.0); when 4 spring pitches are formed, the pitch ratio ranges from 1: (1.1-1.8): (0.3 -1.0): (0.1 -0.5); and the spring pitch is the distance between the outermost points of adjacent rings in the drum-shaped spiral spring.
Description
Technical field
The utility model relates to a kind of barrel shape spring.
Background technique
For the connector that often can be pressed and discharge; especially to being applied to this miniature class connector of the thin type mobile electronic product terminals such as similar mobile phone; its diameter and highly all only have several millimeters; its require to use wherein spring in the connector of packing into; also needing in three operation points, to have suitable power value under the small size; so that operating handle and operation ease to be provided; these three operation points are respectively; be in the operation point that is ejected working state; the operation point that is in the operation point of indentation working state and is in original position state between the two; for the spring of using this occasion, the requirement of above-mentioned power value is arranged not only, and need can tolerate and press frequently release and not tired.Moreover, also require be under the compressive state for the spring of using this occasion, height can be low as much as possible.
For volute spring and barrel-shaped spring, being under the compressive state, take in to the outer ring by inner ring, thus can be under compressive state, the height of reduce spring.
But common volute spring and barrel-shaped spring can not adapt to three operation point power value requirements under very little size, and are difficult to tolerance and press frequently and discharge and not tired.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of barrel shape spring that can be applicable to above-mentioned connector.For this reason, the utility model is by the following technical solutions: it is made of wire rod, the diameter at the two ends of described spring is little, the diameter at middle part is large, the relation between two circles of the diameter maximum in the middle part of the spring, diameters of all the other each circles of described spring satisfy at the inner ring of contractive condition lower spring and can take in contiguous outer ring step by step; The maximum outside diameter of described spring is between 3.0 ~ 4.0mm; Described spring is under free state, upwards start at from the spring outermost point that is in [(wire diameter/2)+0.05mm] ± 0.03mm height, the number of turns of spring forms 3 ~ 4 spring pitchs of spring, when being 3 spring pitchs, pitch is than being 1:1.1 ~ 1.8:0.3 ~ 1.0, when being 4 spring pitchs, pitch is than for 1:1.1 ~ 1.8:0.3 ~ 1.0:0.1 ~ 0.5, and described spring pitch is the distance between the outermost point of adjacent turn in the spring.
On the basis of adopting technique scheme, the utility model also can adopt following further technological scheme:
Described spring bottom is counted from starting point, has the flat circle of 0 ~ 270 degree scope.
The end, top of described spring has the flat circle of 0 ~ 270 degree.
The cross section of the wire rod of described spring is circular, and described wire diameter is its diameter, is 0.26 ~ 0.32mm.
The cross section of the wire rod of described spring is square, and described wire diameter is its length of side, is 0.26 ~ 0.32mm.
When that circle less than 360 of spring top is spent, to be in the spring outermost point of highest order as the end points that calculates pitch in that circle of top.
Described spring is to be compressed into height point apart from the aspect ratio of the height of spring bottom and minimum operation point as 1.1 ~ 1.8:1 as the second operation point, being compressed into height point apart from the aspect ratio of the height of spring bottom and minimum operation point as 0.3 ~ 1.0:1 as the 3rd operation point, described minimum altitude point is in spring and is compressed into bottom the spring between 0.60 ~ 0.66mm; Take the spring force value of spring-compressed to the three operation points as 1, power value during spring-compressed to the second operation point height is 1.2 ~ 2.0, the power value that is compressed to minimum operation point height is 1.6 ~ 3.0, and the power value of the power value that is compressed to the 3rd operation point height when being compressed to the second operation point height.
Described spring fitting is in connector; Described connector comprises cap head and housing, but described cap head indentation housing and eject from housing, and described spring is as for described indentation with eject the working spring that elastic force is provided.
Owing to adopt the technical solution of the utility model, barrel shape spring provided by the utility model is at diameter with highly only in several millimeters the microsize situation, inner ring can be taken in to the outer ring step by step, and guarantee to have enough power values in the operation point of three different heights, and can tolerate pressing and discharge frequent operation and not fatigue failure more than ten thousand times, can satisfy the usage requirement of described micro connector, for the user provide good feel and reliably linkage function, make connector have enough life-spans.
Description of drawings
Fig. 1 is embodiment's 1 provided by the utility model plan view.
Fig. 2 is embodiment's 1 provided by the utility model plan view.
Fig. 3 is embodiment's 2 provided by the utility model plan view.
Fig. 4 is embodiment's 2 provided by the utility model plan view.
Fig. 5 is the cutaway view Amplified image of the applied micro connector of the utility model when spring is in the 3rd operation point.
Fig. 6 is the cutaway view Amplified image of the applied micro connector of the utility model when spring is in the second operation point.
Fig. 7 is the cutaway view Amplified image of the applied micro connector of the utility model when spring is in minimum operation point.
Embodiment
Embodiment 1, with reference to accompanying drawing 1,2,5,6,7.
Barrel shape spring provided by the utility model 100 is made of wire rod, the diameter at the two ends of described spring is little, the diameter at middle part is large, the relation between two circles of the diameter maximum in the middle part of the spring, diameters of all the other each circles of described spring satisfy at the inner ring of contractive condition lower spring can take in (shown in Fig. 2,7) step by step in contiguous outer ring; The maximum outside diameter of described spring is between 3.0 ~ 4.0mm; Described spring is under free state, upwards start at from the spring outermost point 2 that is in [(wire diameter/2)+0.05mm] ± 0.03mm height, the number of turns of spring forms 3 spring pitch B1, B2, the B3 of spring, pitch than for 1:1.1 ~ 1.8:0.3 ~ 1.0(as shown in Figure 1), described spring pitch is the distance between the outermost point of adjacent turn in the spring.
The end, top of described spring has the flat circle 3 of 0 ~ 270 degree, provides better feel applied connector is provided more stable support force to the operation of connector.
Described flat circle is the spring section that lead angle is 0 degree.
It is circular wire rod that described spring can adopt cross section, and described wire diameter is its diameter, is 0.26 ~ 0.32mm.
It is square wire rod that described spring also can adopt cross section, and described wire diameter is its length of side, is 0.26 ~ 0.32mm.
By spring structure design provided by the utility model, can be under micro-dimension, can realize that inner ring takes in the barrel-shaped spring function to the outer ring, fatigue resistance and many operation points power value of barrel-shaped spring have been improved again, be compressed into height apart from spring bottom 0.61mm as minimum operation point (the spring wire diameter is as 0.30mm) take spring, being compressed into height point apart from the aspect ratio of the height of spring bottom and minimum operation point as 1.1-1.8:1 as the second operation point, the height point take the aspect ratio that is compressed into height bottom the spring and minimum operation point as 0.3 ~ 1.0:1 is as the 3rd operation point.Spring force value take spring-compressed to three operation points is as 1, power value during spring-compressed to the second operation point height is 1.2 ~ 2.0, the power value that is compressed to minimum operation point height is 1.6 ~ 3.0, and the power value of the power value that is compressed to the 3rd operation point height when being compressed to the second operation point height.
Fig. 5 has shown that described spring 100 is installed in the state in the micro connector 200; Described connector 200 comprises cap head 201 and housing 202, but described cap head 201 indentation housings 202 and ejection from housing 202, and described spring 100 is in the bottom of connector 200, as the working spring that elastic force is provided for described cap head 201 indentations and ejection.Described connector 200 can be installed in the thin type mobile electronic product terminals such as similar mobile phone, when spring is in the second working position, the housing of described cap head and mobile electronic product terminal flushes, when spring was in the 3rd working position, described cap head ejected and is exposed to the housing of mobile electronic product terminal.
In the present embodiment, described spring has 4 spring pitch B1, B2, B3, B4, and pitch is than being 1:1.1 ~ 1.8:0.3 ~ 1.0:0.1 ~ 0.5.The other parts of present embodiment are identical with embodiment 1, among Fig. 3 and 4, and drawing reference numeral and Fig. 1,2 identical identical implications of representative.
Claims (9)
1. barrel shape spring, it is made of wire rod, the diameter at the two ends of described spring is little, the diameter at middle part is large, it is characterized in that the relation between two circles of the diameter maximum in the middle part of the spring that diameters of all the other each circles of described spring satisfy at the inner ring of contractive condition lower spring and can take in step by step in contiguous outer ring; The maximum outside diameter of described spring is between 3.0 ~ 4.0mm; Described spring is under free state, upwards start at from the spring outermost point that is in [(wire diameter/2)+0.05mm] ± 0.03mm height, the number of turns of spring forms 3 ~ 4 spring pitchs of spring, when being 3 spring pitchs, pitch is than being 1:1.1 ~ 1.8:0.3 ~ 1.0, when being 4 spring pitchs, pitch is than for 1:1.1 ~ 1.8:0.3 ~ 1.0:0.1 ~ 0.5, and described spring pitch is the distance between the outermost point of adjacent turn in the spring.
2. a kind of barrel shape spring as claimed in claim 1 is characterized in that counting from starting point bottom the described spring, has the flat circle of 0 ~ 270 degree scope.
3. a kind of barrel shape spring as claimed in claim 1 is characterized in that the end, top of described spring has the flat circle of 0 ~ 270 degree.
4. a kind of barrel shape spring as claimed in claim 1 is characterized in that the cross section of the wire rod of described spring is circle, and described wire diameter is its diameter, is 0.26 ~ 0.32mm.
5. a kind of barrel shape spring as claimed in claim 1, the cross section that it is characterized in that the wire rod of described spring is square, described wire diameter is its length of side, is 0.26 ~ 0.32mm.
6. a kind of barrel shape spring as claimed in claim 1 is characterized in that when that circle less than 360 of spring top is spent, to be in the spring outermost point of highest order as the end points that calculates pitch in that circle of top.
7. such as claim 1,2,3,4,5 or 6 described a kind of barrel shape springs, it is characterized in that described spring is to be compressed into height point apart from the aspect ratio of the height of spring bottom and minimum operation point as 1.1 ~ 1.8:1 as the second operation point, being compressed into height point apart from the aspect ratio of the height of spring bottom and minimum operation point as 0.3 ~ 1.0:1 as the 3rd operation point, described minimum altitude point is in spring and is compressed into bottom the spring between 0.60 ~ 0.66mm; Take the spring force value of spring-compressed to the three operation points as 1, power value during spring-compressed to the second operation point height is 1.2 ~ 2.0, the power value that is compressed to minimum operation point height is 1.6 ~ 3.0, and the power value of the power value that is compressed to the 3rd operation point height when being compressed to the second operation point height.
8. such as claim 1,2,3,4,5 or 6 described a kind of barrel shape springs, it is characterized in that it is installed in the connector; Described connector comprises cap head and housing, but described cap head indentation housing and eject from housing, and described spring is as for described indentation with eject the working spring that elastic force is provided.
9. a kind of barrel shape spring as claimed in claim 7 is characterized in that it is installed in the connector; Described connector comprises cap head and housing, but described cap head indentation housing and eject from housing, and described spring is as for described indentation with eject the working spring that elastic force is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281480 CN202674125U (en) | 2012-06-11 | 2012-06-11 | Drum-shaped spiral spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281480 CN202674125U (en) | 2012-06-11 | 2012-06-11 | Drum-shaped spiral spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674125U true CN202674125U (en) | 2013-01-16 |
Family
ID=47495032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220281480 Expired - Fee Related CN202674125U (en) | 2012-06-11 | 2012-06-11 | Drum-shaped spiral spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674125U (en) |
-
2012
- 2012-06-11 CN CN 201220281480 patent/CN202674125U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20140611 |