CN203445856U - High-sensitivity capacitance-type touch key - Google Patents
High-sensitivity capacitance-type touch key Download PDFInfo
- Publication number
- CN203445856U CN203445856U CN201320447747.2U CN201320447747U CN203445856U CN 203445856 U CN203445856 U CN 203445856U CN 201320447747 U CN201320447747 U CN 201320447747U CN 203445856 U CN203445856 U CN 203445856U
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- metal spring
- touch key
- diaphragm
- circuit board
- spring inductor
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Abstract
The utility model discloses a high-sensitivity capacitance-type touch key and belongs to the technical field of electronic control switches. The high-sensitivity capacitance-type touch key provided by the utility model includes a display diaphragm, a conductive coating layer, a supporting structural component, a metal spring inductor and a circuit board; one end of the supporting structural component is fixedly connected with the display diaphragm, and the other end of the supporting structural component is fixedly connected with the circuit board; a through hole is formed in the supporting structural component; the metal spring inductor is arranged inside the through holes; one end of the metal spring inductor abuts against the display diaphragm; a position on the metal spring inductor, which abuts against the display diaphragm is provided with the conductive coating layer in a printed manner; and the other end of the metal spring inductor is fixedly connected with the circuit board. The high-sensitivity capacitance-type touch key of the utility model is advantageous in effectively improved sensitivity and increased touch reliability.
Description
Technical field
The utility model relates to a kind of touch key-press, more particularly, relates to a kind of highly sensitive capacitance type touch key.
Background technology
In household appliances, along with client constantly promotes controlling the demand of experience, the contact by user comes the application of trigger switch operation more and more, and wherein capacitance touch induced key is one of them, in the middle of, conduction touches flexible keypad and is used widely.That capacitance type touch key has advantages of is durable, attractive in appearance, simple in structure, appearance effects is little, general capacitance touch button adopts solid-state conductance type inductor or metal spring inductor, in most household electrical appliances display floater schemes, be difficult to showing direct placement conductive metal sheet under diaphragm, therefore mostly adopt metal spring contact to show diaphragm.Like this, PCB just can maintain a certain distance with demonstration diaphragm.In actual production process, because the space between display floater and demonstration diaphragm exists trueness error, after having assembled, in product, the sensitivity of touch key-press is difficult to control, and often there will be and touches ineffective situation, affects the normal use of household electrical appliance.
China Patent No. ZL201220442947.4, Granted publication day is on March 20th, 2013, invention and created name is: condenser type contact induction button, this application case relates to a kind of condenser type contact induction button, comprise touch panel, circuit board and at least one conduction of being located between described touch panel and circuit board touch flexible keypad, between described touch panel and circuit board, be also provided with the button position-limited rack of being made by insulating material, described button position-limited rack is provided with at least one button spacing hole, described conduction touches flexible keypad and is fixed on described circuit board, and be arranged in described in one of them in button spacing hole.The condenser type contact induction button that this application case provides, its conduction touch spring or shell fragment flexible deformation amplitude are little, can not be displaced sideways out of position or conduct electricity touch flexible keypad top and come in contact and cause button short circuit malfunctioning because conduction touches flexible keypad, but easily there is the defects such as button sensitivity is low, touch-responsive rate variance in this application case, and cost is higher under the impact of rigging error.
Summary of the invention
1. the technical problem that utility model will solve
The purpose of this utility model is to overcome touch key-press of the prior art and under the impact of rigging error, occurs that button sensitivity is low, the deficiency of touch-responsive rate variance, a kind of highly sensitive capacitance type touch key is provided, adopt the technical solution of the utility model, can effectively improve the induction sensitivity of touch key-press, increase and touch reliability.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of highly sensitive capacitance type touch key of the present utility model, comprise and show diaphragm, conductive coating, supporting structure, metal spring inductor and circuit board, described supporting structure one end is connected with demonstration diaphragm, the other end and circuit board are connected, described supporting structure is provided with through hole, in this through hole, be provided with metal spring inductor, one end of described metal spring inductor is inconsistent with demonstration diaphragm, and on the conflict position with demonstration diaphragm, be printed with conductive coating, the other end and the circuit board of described metal spring inductor are connected.
Further, the material that described conductive coating adopts is electrocondution slurry.
Further, the area of described conductive coating is showing that with metal spring inductor the projected area on diaphragm is corresponding.
Further, described metal spring inductor is connected with welding circuit board.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compares with existing known technology, has following beneficial effect:
(1) a kind of highly sensitive capacitance type touch key of the present utility model, one end of its metal spring inductor is inconsistent with demonstration diaphragm, and be printed with conductive coating on the conflict position with demonstration diaphragm, metal spring inductor contacts well with showing the conductive coating on diaphragm, and sensitivity is higher;
(2) a kind of highly sensitive capacitance type touch key of the present utility model, its supporting structure is provided with through hole, in this through hole, be provided with metal spring inductor, metal spring inductor is arranged in the through hole of supporting structure, can effectively avoid metal spring inductor to be displaced sideways and out of position;
(3) a kind of highly sensitive capacitance type touch key of the present utility model, simple in structure, reasonable in design, effect is remarkable, and reliability is high, and with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of highly sensitive capacitance type touch key of the present utility model.
Label declaration in schematic diagram:
1, show diaphragm; 2, conductive coating; 3, supporting structure; 4, metal spring inductor; 5, circuit board.
Embodiment
For further understanding content of the present utility model, by reference to the accompanying drawings the utility model is described in detail.
In conjunction with Fig. 1, a kind of highly sensitive capacitance type touch key of the present utility model, comprise and show diaphragm 1, conductive coating 2, supporting structure 3, metal spring inductor 4 and circuit board 5, supporting structure 3 one end are connected with demonstration diaphragm 1, the other end and circuit board 5 are connected, supporting structure 3 is provided with through hole, in this through hole, be provided with metal spring inductor 4, one end of metal spring inductor 4 is inconsistent with demonstration diaphragm 1, and be printed with conductive coating 2 on the conflict position with demonstration diaphragm 1, the material that conductive coating 2 adopts is conductivity type slurry, the other end of metal spring inductor 4 and circuit board 5 are connected.
Below in conjunction with embodiment, the utility model will be further described.
Embodiment
As shown in Figure 1, a kind of highly sensitive capacitance type touch key of the present embodiment, comprise and show diaphragm 1, conductive coating 2, supporting structure 3, metal spring inductor 4 and circuit board 5, wherein, one end of supporting structure 3 is connected with demonstration diaphragm 1, the other end and circuit board 5 are connected, supporting structure 3 is provided with through hole, in this through hole, be provided with metal spring inductor 4, one end of metal spring inductor 4 is inconsistent with demonstration diaphragm 1, and be printed with conductive coating 2 on the conflict position with demonstration diaphragm 1, the area coverage of the conductive coating 2 in the present embodiment is showing that with metal spring inductor 4 projected area on diaphragm 1 is corresponding, also the area coverage that can suitably adjust conductive coating 2 makes it to be greater than metal spring inductor 4 in the projected area showing on diaphragm 1.The material that conductive coating 2 in the present embodiment adopts is electrocondution slurry, and concrete what adopt in the present embodiment is conductive silver paste, and metal spring inductor 4 contacts well with the conductive coating 2 on demonstration diaphragm 1, and sensitivity is higher.The other end of metal spring inductor 4 and circuit board 5 are connected.Metal spring inductor 4 in the present embodiment for welding, makes structure more stable with the connected mode of circuit board 5, not fragile.
In use procedure, user touches and shows that diaphragm 1 makes the metal spring inductor 4 contacting with it that deformation occur, and shows that the electric capacity between diaphragm 1 and circuit board 5 produces change, thereby to circuit board 5 input control signals.Metal spring inductor 4 is positioned at the through hole of supporting structure 3, can effectively avoid metal spring inductor 4 to be displaced sideways and out of position.Increase the reliability of this device.
Below schematically the utility model and execution mode thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of execution mode of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection range of the present utility model.
Claims (4)
1. a highly sensitive capacitance type touch key, it is characterized in that: comprise and show diaphragm (1), conductive coating (2), supporting structure (3), metal spring inductor (4) and circuit board (5), described supporting structure (3) one end is connected with showing diaphragm (1), the other end and circuit board (5) are connected, described supporting structure (3) is provided with through hole, in this through hole, be provided with metal spring inductor (4), one end of described metal spring inductor (4) is inconsistent with demonstration diaphragm (1), and be printed with conductive coating (2) on the conflict position with demonstration diaphragm (1), the other end and the circuit board (5) of described metal spring inductor (4) are connected.
2. a kind of highly sensitive capacitance type touch key according to claim 1, is characterized in that: the material that described conductive coating (2) adopts is electrocondution slurry.
3. a kind of highly sensitive capacitance type touch key according to claim 2, is characterized in that: the area of described conductive coating (2) is showing that with metal spring inductor (4) projected area on diaphragm (1) is corresponding.
4. according to a kind of highly sensitive capacitance type touch key described in claim 2 or 3, it is characterized in that: described metal spring inductor (4) is welded to connect with circuit board (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447747.2U CN203445856U (en) | 2013-07-25 | 2013-07-25 | High-sensitivity capacitance-type touch key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447747.2U CN203445856U (en) | 2013-07-25 | 2013-07-25 | High-sensitivity capacitance-type touch key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445856U true CN203445856U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447747.2U Expired - Fee Related CN203445856U (en) | 2013-07-25 | 2013-07-25 | High-sensitivity capacitance-type touch key |
Country Status (1)
| Country | Link |
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| CN (1) | CN203445856U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743482A (en) * | 2016-02-18 | 2016-07-06 | 陈策 | Smart touch wall switch |
| CN105807972A (en) * | 2014-12-30 | 2016-07-27 | 佛山市顺德区美的电热电器制造有限公司 | Printed electrode touch screen and electromagnetic oven |
| CN106961269A (en) * | 2017-05-11 | 2017-07-18 | 广东太古电器科技有限公司 | Operating control device |
| CN109861681A (en) * | 2019-01-31 | 2019-06-07 | 科世达(上海)机电有限公司 | A kind of assembly tooling of capacitance touching control equipment and its capacitive window |
| CN110701644A (en) * | 2019-10-16 | 2020-01-17 | 北京智米科技有限公司 | Control display panel, manufacturing method thereof and induction cooker |
-
2013
- 2013-07-25 CN CN201320447747.2U patent/CN203445856U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807972A (en) * | 2014-12-30 | 2016-07-27 | 佛山市顺德区美的电热电器制造有限公司 | Printed electrode touch screen and electromagnetic oven |
| CN105807972B (en) * | 2014-12-30 | 2019-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Print electrode touch screen and electromagnetic oven |
| CN105743482A (en) * | 2016-02-18 | 2016-07-06 | 陈策 | Smart touch wall switch |
| CN106961269A (en) * | 2017-05-11 | 2017-07-18 | 广东太古电器科技有限公司 | Operating control device |
| CN109861681A (en) * | 2019-01-31 | 2019-06-07 | 科世达(上海)机电有限公司 | A kind of assembly tooling of capacitance touching control equipment and its capacitive window |
| CN110701644A (en) * | 2019-10-16 | 2020-01-17 | 北京智米科技有限公司 | Control display panel, manufacturing method thereof and induction cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160901 Address after: 213102 Road, Changzhou Town, Wujin District, Jiangsu Patentee after: Jiangsu Yuan Long Electric Appliance Co., Ltd. Address before: 213102 Road, Changzhou Town, Wujin District, Jiangsu Patentee before: Chiko Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20180725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |