CN209748519U - Integral type injection moulding's touch key - Google Patents
Integral type injection moulding's touch key Download PDFInfo
- Publication number
- CN209748519U CN209748519U CN201920751851.8U CN201920751851U CN209748519U CN 209748519 U CN209748519 U CN 209748519U CN 201920751851 U CN201920751851 U CN 201920751851U CN 209748519 U CN209748519 U CN 209748519U
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- China
- Prior art keywords
- shell
- circuit board
- touch sensor
- flexible circuit
- touch
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an integrated injection-molded touch button, which comprises a shell, a touch sensor and a flexible circuit board; the shell is a closed shell which is integrally formed by injection molding; the touch sensor is positioned in the shell and is arranged close to the upper end face of the shell; the touch sensor is electrically connected with the flexible circuit board; the output connection end of the flexible circuit board extends out of the shell. The utility model provides an integrated injection molding touch control button, which adopts an integrated injection molding sealing shell, and the shell can not be disassembled; the touch sensor is arranged in the shell, one end of the flexible circuit board extends into the shell and is electrically connected with the touch sensor, and the touch sensor and the flexible circuit board can be effectively protected through the structure.
Description
Technical Field
The utility model relates to a touch key, in particular to integral type injection moulding's touch key.
Background
The traditional mechanical key input mode has the problems of easy abrasion, short service life and the like. With the continuous development of touch technology, touch keys are widely applied to electronic devices because of the advantages of no mechanical wear, long service life, water and dirt resistance, easy cleaning and the like. As shown in fig. 4, a touch key structure includes a key cover 60, a touch sensor 20 and a circuit board 70, the touch sensor 20 is attached to the bottom of the key cover 60, and the touch sensor 20 is electrically connected to the circuit board 70, and the touch key of the structure, the touch sensor 20 and the circuit board 70 are exposed to the outside, and in packaging or transportation, the touch sensor 20 is easily damaged by external force, so that the connection portion between the touch sensor 20 and the circuit board 70 is separated, and the touch key fails.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems mentioned in the background art, the utility model provides an integrated injection molding touch key, which comprises a shell, a touch sensor and a flexible circuit board;
the shell is an integrated injection molding closed shell; the touch sensor is positioned in the shell and is arranged close to the upper end face of the shell; the touch sensor is electrically connected with the flexible circuit board; the output connecting end of the flexible circuit board extends out of the shell.
Furthermore, the upper end face of the shell is provided with a key mark.
Furthermore, the key identification on the upper end face of the shell adopts IMD technology.
Further, a light source is mounted in the housing.
Further, the light source is a lamp and is electrically connected with the flexible circuit board.
The utility model provides an integrated injection molding touch control button, which adopts an integrated injection molding sealing shell, and the shell can not be disassembled; the touch sensor is arranged in the shell, one end of the flexible circuit board extends into the shell and is electrically connected with the touch sensor, and the touch sensor and the flexible circuit board can be effectively protected through the structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an integrated injection-molded touch key provided in the present invention;
FIG. 2 is a schematic diagram of an internal structure of the touch key of FIG. 1;
FIG. 3 is a schematic view of the mounting plate;
fig. 4 is a schematic diagram of a conventional touch key structure.
Reference numerals:
10 casing 20 touch sensor 30 flexible line way board
40 light source 50 mounting plate 51 tabling groove
52 annular mounting groove 60 key cover 70 circuit board
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
an integrated injection molding touch key comprises a shell 10, a touch sensor 20 and a flexible circuit board 30;
The shell 10 is an integrated injection-molded closed shell; the touch sensor 20 is located inside the casing 10 and is arranged close to the upper end face of the casing 10; the touch sensor 20 is electrically connected with the flexible circuit board 30; the output connection end of the flexible circuit board 30 extends out of the housing 10.
In specific implementation, as shown in fig. 1 and 2, the housing 10 is a closed housing formed by injection molding, and cannot be disassembled and assembled, the housing 10 may be cylindrical, and a convex edge may extend outward from a lower end surface of the housing 10; the touch sensor 20 is a common touch sensor suitable for a key on the market; the utility model provides a touch key embodiment is for realizing the switch function, has consequently selected for use the capacitive touch switch module of touching the touching detection IC (TTP223B) of touching type; the input end and the output end of the touch sensor 20 are connected with the corresponding interfaces of the flexible circuit board 30 through conductive leads; the touch sensor 20 and a portion of the flexible circuit board 30 are located within the housing 10; the output connection end of the flexible circuit board 30 extends out of the housing 10, and the output connection end of the flexible circuit board 30 is used for connecting with an external control circuit; the touch sensing end surface of the touch sensor 20 is closely attached to the upper end surface of the housing 10, and the touch sensor 20 can receive a touch signal by touching the upper end surface of the housing 10.
The preparation process of the touch key comprises the following steps: and placing the connected touch sensor 20 and the flexible circuit board 30 in an injection mold, closing the mold, injecting a thermoplastic melt into the mold, and cooling to obtain the integrated injection molded closed shell. The touch sensor 20 and the flexible circuit board 30 are made of high-temperature-resistant materials, and the injection molding parameters are in a controllable range, so that the touch sensor 20 and the flexible circuit board 30 cannot be damaged by thermoplastic melts. And electronic components are directly placed in an injection mold to prepare the injection molding electronic device, which belongs to a mature process, and the technical personnel in the field can specifically set according to specific conditions.
The utility model provides an integrated injection molding touch control button, which adopts an integrated injection molding sealing shell, and the shell can not be disassembled; the touch sensor is arranged in the shell, one end of the flexible circuit board extends into the shell and is electrically connected with the touch sensor, and the touch sensor and the flexible circuit board can be effectively protected through the structure.
Preferably, the upper end surface of the housing 10 is provided with a key mark.
Preferably, the key identification on the upper end face of the housing 10 adopts IMD technology.
In specific implementation, the upper end surface of the shell 10 is provided with a key identifier, and the key identifier is used for identifying the function of a touch key, so that a consumer can conveniently distinguish the key identifier; the pattern of key designations is provided on the housing 10 using IMD technology.
Preferably, a light source 40 is mounted in the housing 10.
Preferably, the light source 40 is a lamp, and the light source 40 is electrically connected to the flexible circuit board 30.
In specific implementation, as shown in fig. 2, a light source 40 is further installed in the housing 10, the light source 40 is a lamp, preferably an annular LED lamp, and the LED lamp is connected to the power supply interface of the flexible circuit board 30 through a conductive lead. Preferably, as shown in fig. 2-3, a mounting plate 50 is adopted, the upper end surface of the mounting plate 50 is provided with a fitting groove 51, the size of the fitting groove 51 matches with the size of the touch sensor 20, and the touch sensor 20 can be fixedly mounted on the fitting groove 51; the up end of mounting panel 50 still is equipped with annular mounting groove 52, and annular mounting groove 52's size and annular LED fluorescent tube size phase-match, and the LED fluorescent tube can be fixed in embedding annular mounting groove 52, and annular mounting groove 52 has the apron, and LED fluorescent tube back lid upper cover board of packing into can avoid the LED fluorescent tube at the in-process of moulding plastics direct with the hot melt contact of moulding plastics. The annular mounting groove 52 is also provided with lead through holes from which the conductive leads of the LED tube are LED out.
Although terms such as a housing, a touch sensor, a flexible wiring board, a light source, a mounting board, a fitting groove, and an annular mounting groove are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides an integral type injection moulding's touch key which characterized in that: the touch control device comprises a shell (10), a touch sensor (20) and a flexible circuit board (30);
the shell (10) is an integrated injection molding closed shell; the touch sensor (20) is positioned in the shell (10) and is arranged close to the upper end face of the shell (10); the touch sensor (20) is electrically connected with the flexible circuit board (30); the output connecting end of the flexible circuit board (30) extends out of the shell (10).
2. The integrated injection molding touch control key according to claim 1, wherein: the upper end face of the shell (10) is provided with a key mark.
3. The integrated injection molding touch control key according to claim 2, wherein: the key identification on the upper end face of the shell (10) adopts IMD technology.
4. The integrated injection molding touch control key according to claim 1, wherein: a light source (40) is mounted in the housing (10).
5. The integrated injection molding touch control key according to claim 4, wherein: the light source (40) is a lamp, and the light source (40) is electrically connected with the flexible circuit board (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920751851.8U CN209748519U (en) | 2019-05-23 | 2019-05-23 | Integral type injection moulding's touch key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920751851.8U CN209748519U (en) | 2019-05-23 | 2019-05-23 | Integral type injection moulding's touch key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209748519U true CN209748519U (en) | 2019-12-06 |
Family
ID=68723141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920751851.8U Active CN209748519U (en) | 2019-05-23 | 2019-05-23 | Integral type injection moulding's touch key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209748519U (en) |
-
2019
- 2019-05-23 CN CN201920751851.8U patent/CN209748519U/en active Active
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