CN104008910A - Key waterproof structure of roller washing machine - Google Patents
Key waterproof structure of roller washing machine Download PDFInfo
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- CN104008910A CN104008910A CN201310056175.XA CN201310056175A CN104008910A CN 104008910 A CN104008910 A CN 104008910A CN 201310056175 A CN201310056175 A CN 201310056175A CN 104008910 A CN104008910 A CN 104008910A
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- key
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- washing machine
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Abstract
The invention discloses a key waterproof structure of a roller washing machine. The key waterproof structure includes a control panel arranged on a roller body, a PCB below the control panel and a switch on the PCB. A key corresponding to the switch on the PCB is arranged on the control panel. A ring of projecting outskirt is arranged at the periphery of the key in an integrated manner. The height of the outskirt is lower than the surface of a key body. The outskirt and the key body are shaped like a Chinese character 'gong' so that a ring of groove is formed surrounding the key body. The key waterproof structure is capable of ensuring an excellent handfeel of the key, simple and reliable in structure without needing to add any part, and simple and convenient to assembly; and the PCB does not need gluing so that the production efficiency is improved and the production cost is reduced effectively.
Description
Technical field
The invention belongs to household electrical appliance technical field, relate to a kind of press-key structure of washing machine, relate in particular to a kind of key water-proof structure of roller washing machine.
Background technology
Below the guidance panel of existing washing machine, be printed circuit board (PCB) (PCB, Printed Circuit Board), because washing machine is often to use in the larger environment of humidity, PCB because of water inlet cause short circuit and the phenomenon of burning more common, if do not carry out water-proofing treatment, water can be from decorative panel key hole, directly penetrate into PCB upper, cause the damage of making moist of PCB.
Traditional washing machine, panel control box is the mode that adopts mechanical key, easily causes or overlong time button damage afterwards bad by bonding force, increases maintenance cost; The structure of simultaneously traditional washer control panel adopts separate mechanical combining structure, and assembling and water proofing property are poor.
In order to prevent from being positioned at the PCB water inlet of washer operation panel below, thereby reduce mass loss, the key water-proof structure of existing roller washing machine guidance panel has following several conventionally:
1, adopt cap-sensor, due to surface inorganic tool formula button, guidance panel can be made integral type, without leaking hidden danger; This scheme waterproof effect is better, but in order to obtain the effect of operation panel surface aesthetic, die cost can be higher, and button hardness is high, and body sense is poor, easily loses efficacy.
Application number is that 200520139513.7 Chinese patent discloses a kind of capacitor induction type button, it is poor that it has solved traditional mechanical key assembling, press bonding force bad, the problem such as the fragile and water proofing property of button is poor, provide a kind of easy for installation, the capacitor induction type button that water resistance is good, but this structure exists without pressing bonding force, the problems such as key body sense is poor, easy inefficacy.
2, at the button back side, increase elastomer button, play dash effect; This scheme increases unnecessary parts, has increased mould and cost of parts, assembles also relative complex, and due to after long-time use, elastomer button exists distortion, the hidden danger of breaking, and waterproof effect is general.
Application number is the waterproof construction that 02248031.5 Chinese patent discloses a kind of washing machine push-button switch, this structure has increased a sealing shroud that elastomeric material is made between computer board and button, can prevent that the water being sprinkled upon on control desk from flowing to body, this scheme exists parts more, the problem of assembling operation complexity, and yielding breaking after elastomeric seal cover is long-time, thereby cause water-proof function to lose efficacy.
3, above PCB, increase water fender or drip tray structure; This scheme increases unnecessary parts, has increased mould and cost of parts, assembles also relative complex.
Application number is that 200720034678.7 Chinese patent discloses a kind of laundry machine water proof control panel, this structure has increased a drip tray between computer board and button, this structure is waterproof effectively, but exists parts more, increases the problems such as assembling operation difficulty.
4, PCB surface adopts encapsulating, and components and parts are placed in sealed environment; This scheme production efficiency is low, and has significantly promoted cost.
Application number is that 200710146273.7 Chinese patent discloses a kind of key water-proof structure of washing machine, this structure has increased lid plate above computer board, has increased again proof mechanism of water (waterproof membrane etc.) between lid plate and button, this structure relative complex, parts are more, assembling difficulty.
In sum, the roller washing machine key water-proof structure of prior art, exists the imbalance between waterproof effect and cost and efficiency, can not be of great satisfaction.
Therefore,, for above-mentioned technical problem, be necessary to provide a kind of roller washing machine key water-proof structure simple in structure, to overcome above-mentioned defect.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of novel roller washing machine key water-proof structure, this key water-proof structure combines waterproof construction and press-key structure, simple in structure and dependable performance.
For achieving the above object, the invention provides following technical scheme:
A kind of roller washing machine key water-proof structure, comprise and be located at the control panel of stack shell, the button that on the PCB of control panel below and the switch on PCB, control panel, the switch on corresponding PCB arranges, the shirt rim that is provided with a circle projection of button periphery one, the height of shirt rim is lower than the surface of key main body, shirt rim and key main body are " bow " font, around key main body, form with it a circle groove.
Preferably, the relative both sides, shirt rim of described button peripheral projection have difference in height.
Preferably, described key water-proof structure is vertically arranged on roller washing machine stack shell.
From technique scheme, can find out, roller washing machine key water-proof structure of the present invention is to increase by a protruding shirt rim of circle at button periphery, because roller washing machine panel normally vertically arranges, the gap of water between control panel and button flows into, to be blocked by shirt rim, and downward failure to the safe side region, can not flow into PCB region, guaranteed the Electrical Safety of washing machine, Accident prevention occurs.This structure can guarantee the excellent handle of button, simple and reliable for structure, and without increasing parts, group is vertical easy, and PCB also, without encapsulating again, has improved production efficiency, effectively reduces production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing relevant of the present invention in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of key water-proof structure of washing machine schematic diagram in prior art;
Fig. 2 is another kind of key water-proof structure of washing machine schematic diagram in prior art;
Fig. 3 is the third key water-proof structure of washing machine schematic diagram of prior art;
Fig. 4 is roller washing machine key water-proof structure schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described in detail, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
Three kinds of key water-proof structure of washing machine shown in Fig. 1 to Fig. 3 are prior art.
As shown in Figure 1, this key water-proof structure of washing machine comprises is located at the control panel 1 of stack shell, the button 2 that on the PCB4 of control panel 1 below and the switch on PCB4 5, control panel 1, the switch on corresponding PCB4 5 arranges, between button 2 and PCB4, increased an elastomer button 3, elastomer button 3 dependence self elasticity and button 2 fit tightly; This infrastructure cost is higher, and elastomer button and button employing interference fit, install comparatively inconvenience conventionally, and use for a long time rear elastomer button to have the hidden danger of fracture failure.
As shown in Figure 2, this key water-proof structure of washing machine comprises and is located at the control panel 1 of stack shell, the button 2 that on the PCB4 of control panel 1 below and the switch on PCB4 5, control panel 1, the switch on corresponding PCB4 5 arranges has increased encapsulating layer 3 on PCB4; By encapsulating, form complete sealant, protection PCB, because PCB needs encapsulating, production efficiency is low, and product cost significantly increases.
As shown in Figure 3, this key water-proof structure of washing machine comprises is located at the control panel 1 of stack shell, the button 2 that on the PCB4 of control panel 1 below and the switch on PCB4 5, control panel 1, the switch on corresponding PCB4 5 arranges has increased a drip tray 3 between PCB4 and button 2; This waterproof construction is not limited to drip tray, can have various ways, but all exists parts more, and complicated problem is installed.
Inventor finds by analysis, and prior art is all to completely cut off button and PCB by increasing an attached structure, makes water cannot contact PCB.Although can reach the object of waterproof, but all not perfect, all existing press-key structure self is not proposed to improve yet, inventor considers waterproof construction and press-key structure to combine, the shape of press-key structure self and structure are transformed, and make full use of the characteristic of water self, reach the waterproof of simple structure.
As shown in Figure 4, roller washing machine key water-proof structure of the present invention, comprise and be located at the control panel 1 of stack shell, the button 2 that on the PCB4 of control panel 1 below and the switch on PCB4 5, control panel 1, the switch on corresponding PCB4 5 arranges, the shirt rim that is provided with a circle projection 3 of button 2 periphery one, the height of shirt rim 3 is lower than the surface of button 2 main bodys, shirt rim 3 is " bow " font with button 2 main bodys, around button 2 main bodys, forms with it a circle groove.
Water falls into by button 2 groove that protruding shirt rim 3 forms, this key water-proof structure is vertically arranged on roller washing machine stack shell, the relative both sides, shirt rim 3 of button 2 peripheral projection have difference in height, upside projection is higher than downside projection, make full use of the gravity of water self, by the downward failure to the safe side of water region.
Design of the present invention, be similar to the drip tray that increased of the prior art between PCB and button, in order to hold water the failure to the safe side region of bleeding, difference is, button and protruding shirt rim are made to an integral body that forms a circle groove around key main body, and described groove is similar to the effect of drip tray.
In sum, roller washing machine key water-proof structure of the present invention is to increase by a protruding shirt rim of circle at button periphery, because roller washing machine panel normally vertically arranges, the gap of water between control panel and button flows into, to be blocked by shirt rim, and downward failure to the safe side region, can not flow into PCB region, guaranteed the Electrical Safety of washing machine, Accident prevention occurs.This structure can guarantee the excellent handle of button, simple and reliable for structure, and without increasing parts, group is vertical easy, and PCB also, without encapsulating again, has improved production efficiency, effectively reduces production cost.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. a roller washing machine key water-proof structure, the PCB(4 that comprises control panel (1), control panel (1) below of being located at stack shell) button (2) that the switch (5) the upper corresponding PCB(4 of switch (5), control panel (1) and PCB(4)) arranges, it is characterized in that: the shirt rim that is provided with a circle projection (3) of described button (2) periphery one, the height of shirt rim (3) is lower than the surface of button (2) main body, shirt rim (3) is " bow " font with button (2) main body, around button (2) main body, forms with it a circle groove.
2. roller washing machine key water-proof structure according to claim 1, is characterized in that: the relative both sides, shirt rim (3) of described button (2) peripheral projection have difference in height.
3. roller washing machine key water-proof structure according to claim 1, is characterized in that: described key water-proof structure is vertically arranged on roller washing machine stack shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056175.XA CN104008910A (en) | 2013-02-22 | 2013-02-22 | Key waterproof structure of roller washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056175.XA CN104008910A (en) | 2013-02-22 | 2013-02-22 | Key waterproof structure of roller washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104008910A true CN104008910A (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310056175.XA Pending CN104008910A (en) | 2013-02-22 | 2013-02-22 | Key waterproof structure of roller washing machine |
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| CN (1) | CN104008910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355490A (en) * | 2015-10-20 | 2016-02-24 | 江苏斯菲尔电气股份有限公司 | Waterproof, dustproof and anti-static button structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060256510A1 (en) * | 2005-05-12 | 2006-11-16 | Kenji Nakasono | Electronic device |
| CN201256503Y (en) * | 2008-09-03 | 2009-06-10 | 上海松下微波炉有限公司 | Water-proof construction formed by combination of control panel and button engagement of household electric appliance |
| CN201698935U (en) * | 2010-04-27 | 2011-01-05 | 张新明 | Waterproof key |
| CN201853616U (en) * | 2010-11-19 | 2011-06-01 | 深圳市巨潮科技有限公司 | Waterproof key and electronic equipment comprising the same |
| CN201975301U (en) * | 2011-03-24 | 2011-09-14 | 中国华录·松下电子信息有限公司 | Water-proof power key sealing device |
-
2013
- 2013-02-22 CN CN201310056175.XA patent/CN104008910A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060256510A1 (en) * | 2005-05-12 | 2006-11-16 | Kenji Nakasono | Electronic device |
| CN201256503Y (en) * | 2008-09-03 | 2009-06-10 | 上海松下微波炉有限公司 | Water-proof construction formed by combination of control panel and button engagement of household electric appliance |
| CN201698935U (en) * | 2010-04-27 | 2011-01-05 | 张新明 | Waterproof key |
| CN201853616U (en) * | 2010-11-19 | 2011-06-01 | 深圳市巨潮科技有限公司 | Waterproof key and electronic equipment comprising the same |
| CN201975301U (en) * | 2011-03-24 | 2011-09-14 | 中国华录·松下电子信息有限公司 | Water-proof power key sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355490A (en) * | 2015-10-20 | 2016-02-24 | 江苏斯菲尔电气股份有限公司 | Waterproof, dustproof and anti-static button structure |
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Application publication date: 20140827 |