CN210925822U - Bass metal elastic sheet - Google Patents
Bass metal elastic sheet Download PDFInfo
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- CN210925822U CN210925822U CN202020082148.5U CN202020082148U CN210925822U CN 210925822 U CN210925822 U CN 210925822U CN 202020082148 U CN202020082148 U CN 202020082148U CN 210925822 U CN210925822 U CN 210925822U
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Abstract
The utility model discloses a bass metal shrapnel, which comprises a round metal plate, a contact point, a support plate and a support angle; the round metal plate is in an upward convex shape; the contact is arranged on the lower surface of the round metal plate and protrudes downwards; the supporting plate is horizontally arranged on the peripheral edge of the round metal plate; the four support angles are uniformly arranged on the support plate and are downwards convex; circular metal sheet, contact, backup pad and support angle integration stamping forming, and be equipped with the conducting layer jointly on the lower surface of circular metal sheet, contact, backup pad and support angle.
Description
Technical Field
The utility model relates to a metal shrapnel especially relates to a bass metal shrapnel.
Background
At present, metal elastic sheets are widely applied to key switch products such as mobile phones, remote controllers and the like, the metal elastic sheets are also called as 'metal dome', the diameter of the general 'metal dome' is different from 3mm to 20mm, and when the metal elastic sheets are pressed, the metal elastic sheets are sunken from the central points of the convex parts of the metal elastic sheets to trigger a circuit to be conducted, so that the metal elastic sheets are used as sensitive switches. With the progress of the technology, the smaller the metal dome is, generally, when the metal dome is smaller, the ratio of the vertical height of the protruding portion of the metal dome to the height of the whole metal dome is increased, in other words, when the metal dome is smaller, the protruding portion is easily triggered by mistake due to insufficient height, and the problem of poor pressing hand feeling and even no pressing feeling is easily caused, so people have to avoid false triggering by increasing the vertical height of the protruding portion and simultaneously meet good touch feeling, but the design disadvantage is also prominent, namely, the raised portion occupies the space above the keys of products such as mobile phones, remote controllers and the like, the thickness of the products is thickened, the requirements of people on lighter and thinner characteristics of electronic products are not met, meanwhile, the raised portion increases the key tone decibel during pressing, and the like, and the traditional mobile phones are applied to the market at present, The actual measurement of the basic sound of the metal shrapnel pressed on products such as a remote controller is 50-60 decibels, and the effect is not satisfactory.
Therefore, there is a need in the market for a metal dome that is thinner and lighter and has a lower key sound under the condition of satisfying both the requirement of a smaller shape and a good touch feeling.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a bass metal shrapnel.
In order to solve the technical problem, the utility model discloses a technical scheme is: a bass metal dome, it includes round metal sheet, contact, shoe plate and support angle;
the round metal plate is in an upward convex shape; the contact is arranged on the lower surface of the round metal plate and protrudes downwards; the supporting plates are arranged along the peripheral edges of the round metal plate and are horizontally arranged; the four support angles are uniformly arranged on the support plate and are downwards convex;
circular metal sheet, contact, backup pad and support angle integration stamping forming, and be equipped with the conducting layer jointly on the lower surface of circular metal sheet, contact, backup pad and support angle.
Further, there are a plurality of contact points, and a plurality of contact points are evenly distributed on the lower surface of the circular metal plate.
Further, the planar diameter Φ of the circular metal plate was 3 mm.
Further, the vertical height h1 of the support corner is 0.1mm, and the vertical height h2 of the circular metal plate is 0.06 mm.
Furthermore, a connecting boundary line is formed between the supporting angle and the supporting plate, and the connecting boundary line is arc-shaped.
Further, the supporting plate comprises a front side plate, a rear side plate, a left side plate and a right side plate, the front side plate, the rear side plate, the left side plate and the right side plate are all plate bodies with narrow middles and wide two sides, and the difference between the maximum width value and the minimum width value of the plate bodies is h 3.
The utility model discloses a bass metal shrapnel, its excellent advantage lies in: the bass metal elastic sheet is made of stainless steel nickel-plated materials, so that the structure is light; the metal elastic sheet has small area, low radian and low button noise; meanwhile, the stroke of the metal elastic sheet is higher through the reasonable design of the supporting angle, so that the pressing hand feeling is better.
Drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a schematic view of the supporting plate structure of the present invention.
In the figure: 1. a circular metal plate; 2. a contact point; 3. a support plate; 4. a support angle; 5. a conductive layer; 6. connecting the boundary lines; 301. a front side plate; 302. a rear side plate; 303. a left side plate; 304. and a right side plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, the bass metal dome includes a circular metal plate 1, a contact 2, a support plate 3 and a support corner 4;
as shown in fig. 1 and 2, the circular metal plate 1 is upwardly convex, the diameter Φ of the projection of the circular metal plate 1 to the plane is 3mm, the lower surface of the circular metal plate 1 is provided with a plurality of contact points, the contact points 2 protrude downwards, when dust is on the lower surface of the circular metal plate 1, the metal sheet of the circuit board below can not be contacted easily, and the metal sheet of the circuit board can be triggered effectively due to the small contact surface of the contact points 2, so that the failure rate is reduced to the maximum extent; the supporting plate 3 is arranged along the peripheral edge of the round metal plate 1, and the supporting plate 3 is horizontally arranged; the four support corners 4 are uniformly arranged on the support plate 3, a connecting boundary line 6 is formed between each support corner 4 and the support plate 3, the connecting boundary line 6 is arc-shaped, each support corner 4 is convex downwards, each support corner is shaped like a semicircular convex surface, and the lowest point of the convex surface downwards is used as a fulcrum;
as shown in fig. 1 and 3, the supporting plate 3 includes a front plate 301, a rear plate 302, a left plate 303 and a right plate 304, the front plate 301, the rear plate 302, the left plate 303 and the right plate 304 are divided into plate bodies with a narrow middle and wide sides by a circular metal plate 1 and four evenly distributed supporting angles 4, as shown in fig. 2 and 3, the plate bodies are all plate bodies with a narrow middle and wide sides, the difference between the maximum width and the minimum width of the plate bodies is h3, and h3 is 0.15 mm. In the position relation, the length of h3 of the front side plate 301 and the rear side plate 302 is contained in the length of the diameter phi of the circular metal plate 1, the length of h3 of the left side plate 303 and the right side plate 304 is also contained in the length of the diameter phi of the circular metal plate 1, the circular metal plate 1 skillfully borrows a part of the length of the supporting plate 3, the size of the whole bass metal elastic sheet is indirectly reduced on the premise that the size of the circular metal plate 1 is not changed, and meanwhile, the good support performance is also ensured through the plate body design of the narrow middle part and the wide two sides of the supporting plate 3.
As shown in fig. 2, the support angle 4 has a vertical height h1, h1 is 0.1mm, the circular metal plate 1 has a vertical height h2, and h2 is 0.06mm, so the vertical distance from the top of the protrusion to the pressed circular metal plate 1 is the sum of h1 and h2 when the circular metal plate 1 is pressed, the vertical height h1 is smaller compared with the conventional metal dome, and the smaller the vertical height h1 under the condition of ensuring the diameter of the circular metal plate of the same size means that the arc degree of the circular metal plate 1 of the utility model is smaller, so the noise generated when the arc degree is small, the sound is usually 30-40 db, and the sum of h1 and h2 is increased compared with the vertical height of the conventional metal dome, and the pressing feeling is also improved.
Circular metal sheet 1, contact 2, backup pad 3 and support angle 4 integration stamping forming, and be equipped with conducting layer 5 on circular metal sheet 1, contact 2, backup pad 3 and support angle 4's the lower surface jointly, circular metal sheet 1, contact 2, backup pad 3 and support angle 4 main part are stainless steel, and stainless steel matter is light and intensity is high, therefore the number of times of use is many, and conducting layer 5 is the nickel coating of nickel material, and the nickel coating has better electric conductivity.
The utility model discloses a bass metal shrapnel, its excellent advantage lies in: the bass metal elastic sheet is made of stainless steel nickel-plated materials, so that the structure is light; the metal elastic sheet has small area, low radian and low button noise; meanwhile, the stroke of the metal elastic sheet is higher through the reasonable design of the supporting angle, so that the pressing hand feeling is better.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (6)
1. A bass metal dome which characterized in that: the contact device comprises a circular metal plate (1), a contact (2), a support plate (3) and a support angle (4);
the round metal plate (1) is upwards convex; the contact point (2) is arranged on the lower surface of the circular metal plate (1), and the contact point (2) protrudes downwards; the supporting plate (3) is arranged along the peripheral edge of the round metal plate (1), and the supporting plate (3) is horizontally arranged; the number of the support angles (4) is four, the four support angles are uniformly arranged on the support plate (3), and the support angles (4) are downward convex;
circular metal sheet (1), contact (2), backup pad (3) and support angle (4) integration stamping forming, just be equipped with conducting layer (5) jointly on the lower surface of circular metal sheet (1), contact (2), backup pad (3) and support angle (4).
2. The bass metal dome of claim 1, wherein: the contact points (2) are distributed on the lower surface of the circular metal plate (1) uniformly.
3. The bass metal dome of claim 1, wherein: the plane diameter phi of the circular metal plate (1) is 3 mm.
4. The bass metal dome of claim 1, wherein: the vertical height h1 of the supporting angle (4) is 0.1mm, and the vertical height h2 of the round metal plate (1) is 0.06 mm.
5. The bass metal dome of claim 1, wherein: a connecting boundary line (6) is formed between the supporting angle (4) and the supporting plate (3), and the connecting boundary line (6) is arc-shaped.
6. The bass metal dome of claim 5, wherein: the supporting plate (3) comprises a front side plate (301), a rear side plate (302), a left side plate (303) and a right side plate (304), wherein the front side plate (301), the rear side plate (302), the left side plate (303) and the right side plate (304) are all plate bodies with narrow middle sides and wide sides, and the difference between the maximum width value and the minimum width value of the plate bodies is h 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082148.5U CN210925822U (en) | 2020-01-15 | 2020-01-15 | Bass metal elastic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082148.5U CN210925822U (en) | 2020-01-15 | 2020-01-15 | Bass metal elastic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210925822U true CN210925822U (en) | 2020-07-03 |
Family
ID=71369184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020082148.5U Active CN210925822U (en) | 2020-01-15 | 2020-01-15 | Bass metal elastic sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210925822U (en) |
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2020
- 2020-01-15 CN CN202020082148.5U patent/CN210925822U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: 266555 Plant 20, No. 252, Yanhe Road, Huangdao District, Qingdao, Shandong Patentee after: Qingdao Shanyuan Precision Electronic Technology Co.,Ltd. Address before: 266555 plant 20, Tianhe Industrial Park, Weihe Road, Huangdao District, Qingdao City, Shandong Province Patentee before: QINGDAO SHAN YUAN ELECTRONICS CO.,LTD. |