CN1604251A - Sealed touch switch and process for making same - Google Patents
Sealed touch switch and process for making same Download PDFInfo
- Publication number
- CN1604251A CN1604251A CN 200410040947 CN200410040947A CN1604251A CN 1604251 A CN1604251 A CN 1604251A CN 200410040947 CN200410040947 CN 200410040947 CN 200410040947 A CN200410040947 A CN 200410040947A CN 1604251 A CN1604251 A CN 1604251A
- Authority
- CN
- China
- Prior art keywords
- soft
- touch control
- plastic casing
- injection moulding
- touch switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Switch Cases, Indication, And Locking (AREA)
- Manufacture Of Switches (AREA)
Abstract
It is a sealed touch switch and its process, which comprises the following steps: first to inject and mold a plastic case with its inner shape same to the outer shape of the touch switch, wherein, the inner size of the plastic case is little more than the outer size of the touch switch; to put the touch switch into the plastic case for another injection molding to seal the boundary of the touch switch surface with plastic case; to fill the lead wire hole with plastic liquid to seal it to add the stability and reliability of the switch.
Description
Technical field
The present invention relates to a kind of sealing soft-touch control and manufacture craft technology.
Background technology
Application number is 02106698.1 patent application; it is merit application under the Japanese palace; title is a soft-touch control; structure, purposes of this soft-touch control etc. have been disclosed; its objective is the reliability that increases switch; mention the sealing that a kind of waterproof is provided in an embodiment; mainly be at spring leaf; flexible covers that is made of plastics and pad seal spring contact strip encirclement realization; belong to partially sealed; function with waterproof, protection against the tide, under the home condition, it is fully passable using this soft-touch control.Very poor in environmental condition, outdoor open-air, wind, Exposure to Sunlight, drench with rain, jolt, under the severe environmental conditions such as vibration, more strict to waterproof, protection against the tide, shockproof requirement.As motorcycle broadcast receiver soft-touch control, under this environmental condition, to work, above-mentioned soft-touch control is difficult to be competent at.
Summary of the invention
Purpose of the present invention just is to overcome the weak point that above-mentioned soft-touch control exists, and provides a kind of waterproof, protection against the tide, shockproof properties good, sealing soft-touch control and manufacture craft.
The scheme that the technology of the present invention problem solves is: plastic casing of first injection mo(u)lding, the cavity shape of this box is identical with the external shape of soft-touch control, its plastic casing inner cavity size is slightly larger than the overall dimensions of soft-touch control, the thickness of the aspect ratio soft-touch control of plastic casing wall exceeds 0.3～0.4mm, is reserved with fairlead and screw hole in the bottom of plastic casing; Next is to carry out the injection moulding second time, soft-touch control is put in the inner chamber of plastic casing, is put into injection moulding in the mould more together, makes the edge on soft-touch control surface and plastic casing be sealed into one, and nut, gasket seal are in plastic casing; The 3rd is to be inserts with plastics liquid, fills fairlead, makes its sealing.
The invention has the beneficial effects as follows conspicuous, because soft-touch control is implemented twice injection moulding sealing and is filled sealing technology, realized that soft-touch control is hermetically sealed in plastic casing, therefore have splendid waterproof, protection against the tide, shockproof performance, the stability and the reliability of soft-touch control have also been increased simultaneously, can be under exceedingly odious environmental condition operate as normal, can be widely used in the control switch, particularly motorcycle broadcast receiver switch of broadcast receiver and other electric equipments.
Description of drawings
Fig. 1 is that the present invention seals the soft-touch control front schematic view
Fig. 2 is that the present invention seals the soft-touch control schematic bottom view
Fig. 3 is that the present invention seals soft-touch control A-A cutaway view
Fig. 4 is the single soft-touch control amplification view of the present invention
Fig. 5 is a pcb map of the present invention
Fig. 6 is the present invention's injection mold and injection moulding flow graph for the second time
Fig. 7 is that the present invention seals the soft-touch control line map
Embodiment
Below in conjunction with the accompanying drawing description detailed in addition to the present invention:
Specific embodiments of the invention are the broadcast receiver sealing soft-touch controls that are used on the motorcycle, 5 soft-touch control combinations 3 are sealed in the oval-shaped plastic casing 8, its surface placement as shown in Figure 1, power source ON/OFF switch is placed in the middle, is followed successively by volume VOL+, volume VOL-up and down, transfers platform SCAN, RESET resets.Fig. 2 is the ground plan of the plastic casing 8 of injection mo(u)lding for the first time, and overall dimension is major axis 74mm, and the ellipse of minor axis 51mm is reserved with fairlead 2, screw hole 26 and goes between 1.Fig. 3 is a sealing soft-touch control A-A cutaway view, soft-touch control combination 3 is sealed in the plastic casing 8, hold-down screw 7 is exposed, packing ring 5, nut 6 are sealed in the plastic casing 8, lead-in wire 1 is drawn by fairlead 2, fairlead 2 usefulness are moulded liquid 10 and are filled sealing, and air-vent 11 is all arranged in each switch, and the skin 9 of plastic casing 8 is the sealants of injection moulding for the second time.The making of single soft-touch control as shown in Figure 4, making annular electrode 13 and the circular electrode 14 in annular electrode 13 in the printed board 12, spherical spring leaf 18 fixedly becomes the electrode contact on the film 15 clamping rings shape electrodes 13 by circumference, on the outer surface of spherical spring leaf 18, post insulation film 16, on insulation film 16 outer surfaces, paste PC plastics facial mask 17, this facial mask 17 requires to have intensity preferably, flexibility and air-tightness, and the inner face at facial mask 17 is printed on literal, marks such as symbol, with function or the purposes that shows this switch, in annular electrode 13, be provided with air-vent 11, when the effect of air-vent 11 just is that spherical spring leaf 18 is pressed, its inner air is discharged by air-vent 11, to guarantee that spherical spring leaf 18 contacts with the reliable of circular electrode 14, when spherical spring leaf 18 unclamped, air was by air-vent 11 returns, and spherical spring leaf 18 recovers normal condition.Fig. 5 is oval printed board 12, making 5 annular electrodes 13 and the circular electrode 14 in each annular electrode 13 in this printed board 12, in each annular electrode 13, be provided with 2 air-vents 11,, make 5 soft-touch control combinations 3 again by single soft-touch control making step.Fig. 6 is for the second time injection mold and injection moulding flow graph, soft-touch control combination 3 is put into the chamber of plastic casing 8 and form an assembly, the thickness of the peripheral aspect ratio soft-touch control combination 3 of plastic casing 2 exceeds 0.3～0.4mm, said modules is put between the patrix 21 and counterdie 22 of mould, carry out the injection moulding sealing second time, injection hole 23, arrow 24 expression sprue injection mouldings flow to, arrow 23 expression runner injection mouldings flow to, sprue is along the bottom surface 19 parallel injection mouldings of plastic casing 8, with packing ring 5, nut 6 is sealed in the plastic casing 8, runner makes progress along the outer wall 20 of plastic casing 8, redirect to inwall downwards to the edge surface injection moulding of soft-touch control combination 3 through the box mouth, and making the plastic casing 8 and the face seal of soft-touch control combination 3 is one, fairlead 2 usefulness are moulded liquid 10 and are filled sealing, the airtight quality at 1 position of guaranteeing to go between.Fig. 7 is the line map that the present invention seals soft-touch control, and the label of pressing binding post is connected with corresponding circuit in the broadcast receiver and gets final product.
Claims (3)
1, a kind of sealing soft-touch control and manufacture craft, it is characterized in that: plastic casing of first injection mo(u)lding, the cavity shape of this box is identical with the external shape of soft-touch control, its plastic casing inner cavity size is slightly larger than the overall dimensions of soft-touch control, the thickness of the aspect ratio soft-touch control of plastic casing wall exceeds 0.3～0.4mm, is reserved with fairlead and screw hole in the bottom of plastic casing; Next is to carry out the injection moulding second time, soft-touch control is put in the inner chamber of plastic casing, is put into injection moulding in the mould more together, makes the edge on soft-touch control surface and plastic casing be sealed into one, and nut, gasket seal are in plastic casing; The 3rd is to be inserts with plastics liquid, fills fairlead, makes its sealing.
2, by described sealing soft-touch control of claim 1 and manufacture craft, it is characterized in that, injection moulding for the second time is by sprue and runner injection moulding, sprue is along the parallel injection moulding in plastic casing bottom surface, runner is along the plastic casing outer wall upwards, turns to along the box inwall downwards to the injection moulding of soft-touch control marginal surface through box limit mouth.
3, by described sealing soft-touch control of claim 1 and manufacture craft, it is characterized in that, in each round loop electrode, be provided with air-vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040947 CN1604251A (en) | 2004-11-02 | 2004-11-02 | Sealed touch switch and process for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040947 CN1604251A (en) | 2004-11-02 | 2004-11-02 | Sealed touch switch and process for making same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1604251A true CN1604251A (en) | 2005-04-06 |
Family
ID=34664822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040947 Pending CN1604251A (en) | 2004-11-02 | 2004-11-02 | Sealed touch switch and process for making same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1604251A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715951A (en) * | 2015-03-23 | 2015-06-17 | 芜湖美的厨卫电器制造有限公司 | Waterproof key assembly and electric water heater with the same |
| CN104715953A (en) * | 2013-12-13 | 2015-06-17 | 富士通电子零件有限公司 | Key switch device and keyboard |
| US11004627B2 (en) | 2017-03-30 | 2021-05-11 | Fujitsu Component Limited | Reaction force generating member and key switch device |
| US11862415B2 (en) | 2013-05-14 | 2024-01-02 | Fujitsu Component Limited | Keyswitch device and keyboard |
-
2004
- 2004-11-02 CN CN 200410040947 patent/CN1604251A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11862415B2 (en) | 2013-05-14 | 2024-01-02 | Fujitsu Component Limited | Keyswitch device and keyboard |
| CN104715953A (en) * | 2013-12-13 | 2015-06-17 | 富士通电子零件有限公司 | Key switch device and keyboard |
| US9741507B2 (en) | 2013-12-13 | 2017-08-22 | Fujitsu Component Limited | Key switch device and keyboard |
| US10410806B2 (en) | 2013-12-13 | 2019-09-10 | Fujitsu Component Limited | Reaction force generating member for a key switch device |
| US11011329B2 (en) | 2013-12-13 | 2021-05-18 | Fujitsu Component Limited | Reaction force generating member for a key switch device |
| CN104715951A (en) * | 2015-03-23 | 2015-06-17 | 芜湖美的厨卫电器制造有限公司 | Waterproof key assembly and electric water heater with the same |
| US11004627B2 (en) | 2017-03-30 | 2021-05-11 | Fujitsu Component Limited | Reaction force generating member and key switch device |
| US11355293B2 (en) | 2017-03-30 | 2022-06-07 | Fujitsu Component Limited | Reaction force generating member and key switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |