CN111986941B - Waterproof button structure and electronic equipment - Google Patents
Waterproof button structure and electronic equipment Download PDFInfo
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- CN111986941B CN111986941B CN202010818439.0A CN202010818439A CN111986941B CN 111986941 B CN111986941 B CN 111986941B CN 202010818439 A CN202010818439 A CN 202010818439A CN 111986941 B CN111986941 B CN 111986941B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
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- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention provides a waterproof key structure and electronic equipment, wherein the waterproof key structure comprises a key, a key body and a key cover, wherein the key comprises a pressing part for switching on a switch and a limiting part for limiting the position of the pressing part when the key body is pressed; the shell comprises a through hole matched with the pressing part, a first assembling groove communicated with the through hole and a second assembling groove which is arranged at intervals with the first assembling groove and is not communicated with the first assembling groove; and the sealing ring is sleeved outside the pressing part. According to the waterproof key structure, the number of the through holes is reduced, the threat of leakage through the through holes is reduced, the sealing performance and the waterproof performance of the waterproof key structure are improved, meanwhile, the structure is simple, the assembly is convenient, and the production is easy.
Description
Technical Field
The invention relates to the technical field of key waterproof structures, in particular to a waterproof key structure and electronic equipment.
Background
With the development of technology, the use of various electronic devices, such as mobile phones, tablets, electronic watches, game machines and the like, has become more popular, and brings users with a variety of different experiences and great convenience. Accordingly, demands for the use performance of electronic devices under various environmental conditions are also increasing, and among them, the waterproof performance of electronic devices is particularly important. A casing of the electronic device is generally provided with a key, and the electronic device is switched on or switched off or otherwise adjusted by pressing the key. Therefore, it is necessary to provide a waterproof button.
Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a conventional waterproof key, and fig. 2 is an exploded view of the conventional waterproof key of fig. 1. Fig. 3 is a partially exploded view of the conventional waterproof key of fig. 1. The traditional waterproof key 200 comprises a shell member 210, a key 220, a fastening steel sheet 230 and a plastic cover plate 240, wherein the key 220 is provided with a touch part 221 and two limiting parts 222 which are arranged in parallel with the touch part 221 and are respectively arranged on two sides of the touch key 221, the shell member 210 is provided with three through holes M and an assembly groove N communicated with one ends of the three through holes M, after the two limiting parts 222 and the touch part 221 penetrate through the corresponding through holes M respectively, three end parts all extend out of the assembly groove N, and the fixed end parts are clamped through the fastening steel sheet 230 to prevent the key 220 from shaking in the shell member 210, a switch electronic element is arranged in the assembly groove N, when the key 220 is pressed, the end part of the touch part 221 on the key 220 extends towards the switch electronic element in the assembly groove N and is contacted with the switch electronic element, an internal circuit is conducted, and a switching effect is realized. In addition, the assembly groove N is sealed by a plastic cover 240 to isolate the key from the internal circuit.
Above traditional waterproof button 200 structure is equipped with switch electronic component in the mounting groove N, and consequently mounting groove N is the sealed liquid entering of preventing that needs, but traditional waterproof button 200 is owing to set up three through-hole M with mounting groove N intercommunication, and the problem has appeared in the arbitrary through-hole M seals in leading to these three through-hole M, and liquid all can get into in the mounting groove N. In summary, the conventional waterproof key 200 has insufficient waterproof and sweat-proof capabilities, which seriously affects the usability and service life of the key, and further shortens the service life of the electronic device. In addition, the assembly process of the conventional waterproof key 200 is complicated, long in time consumption and not beneficial to the batch production of electronic equipment.
Therefore, there is a need to provide a new waterproof key structure and an electronic device to solve the above-mentioned drawbacks.
Disclosure of Invention
Based on the waterproof key structure and the electronic equipment, the waterproof key structure has the advantages of good sealing performance, simple structure and convenience in assembly, and can overcome the defects existing at present.
The technical scheme of the invention is as follows: a waterproof key structure, comprising:
the key comprises a pressing plate, a pressing part and a limiting part, wherein the pressing part and the limiting part are arranged on the pressing plate, the pressing part is used for switching on a switch, and the limiting part is used for limiting the position of the pressing part when the pressing part is pressed;
the shell comprises a through hole matched with the pressing part, a first assembling groove communicated with the through hole and a second assembling groove which is arranged at intervals with the first assembling groove and is not communicated with the first assembling groove;
the sealing ring is sleeved outside the pressing part;
when the button assembles in during the casing, press the splenium to run through the via hole and extend first assembly groove, the sealing washer butt is sealed the inner wall of via hole realizes will the via hole seals, spacing portion holds and locates in the second assembly groove, presses the board, press the splenium to stretch to switch electronic component in the first assembly groove, and the touching switch electronic component switches on the switch.
Preferably, the waterproof key further comprises a sealing cover in sealing fit with the first assembling groove and a sealing plug in sealing fit with the second assembling groove.
Preferably, the sealing plug is in interference fit with the second assembling groove and is abutted and fixed with the limiting part;
and/or the sealing cover is in interference fit with the first assembling groove and is abutted to fix the switch electronic element;
and/or the sealing plug and the sealing cover comprise a first relief portion for facilitating assembly.
Preferably, the sealing plug includes a raised strip portion, and the raised strip portion abuts against the inner wall of the second assembling groove so that the sealing plug is in interference fit with the second assembling groove;
and/or the sealing plug comprises a step surface, and the step surface is abutted against the limiting part so that the sealing plug is connected with the second assembling groove in a step matching manner.
Preferably, the outer wall of the pressing part is provided with a first groove which is annularly provided with a circle, and the first groove is matched with the sealing ring.
Preferably, the pressing part is arranged at one end of the first assembling groove and is provided with a second groove, the second groove faces the pressing plate and is sunken, and the waterproof key structure further comprises a buffer part matched with the second groove.
Preferably, the sealing cover is provided with a second relief portion for accommodating the switch electronic component, and the pressing portion is opposite to the switch electronic component.
Preferably, the limiting part comprises two limiting supports which are arranged at two ends of the pressing part and symmetrically, the second assembling groove and the sealing plug are arranged corresponding to the limiting supports, and the sealing plug is abutted and fixed with the limiting supports.
Preferably, the limiting support comprises a first support connected with the pressing plate and a second support bent and extended from one end, far away from the pressing plate, of the first support, and the first support and the second support are combined into an L shape.
Preferably, a lubricating inclined plane is arranged at the joint of the first support and the second support, and the lubricating inclined plane is matched with a slope in the second assembling groove.
Preferably, the housing further comprises a key slot arranged at an interval with the first assembling slot and connected with the second assembling slot, the through hole is connected with the key slot and the first assembling slot, and the pressing plate part is accommodated in the key slot.
The invention also provides electronic equipment which comprises the waterproof key structure.
The invention has the beneficial effects that: the waterproof key structure comprises a key, a pressing part and a limiting part, wherein the pressing part and the limiting part are arranged on the pressing plate; the shell comprises a through hole matched with the pressing part, a first assembling groove communicated with the through hole and a second assembling groove which is arranged at intervals with the first assembling groove and is not communicated with the first assembling groove; and the sealing ring is sleeved outside the pressing part. According to the waterproof key structure, the pressing part, the first assembling groove for accommodating the electronic switch element and the second assembling groove for accommodating the limiting part are arranged on the shell to be separated and then not communicated, and the waterproof key structure can play a role of sealing and waterproofing only by sealing the via hole connected with the first assembling groove.
Drawings
FIG. 1 is a schematic view of a conventional waterproof key structure;
FIG. 2 is an exploded view of the conventional waterproof key of FIG. 1;
FIG. 3 is a partially exploded view of the conventional waterproof button of FIG. 1;
FIG. 4 is a schematic view of a waterproof key structure according to an embodiment of the present invention;
FIG. 5 is a partially exploded view of the waterproof key structure shown in FIG. 4;
FIG. 6 is a first exploded perspective view of the waterproof key structure shown in FIG. 4;
FIG. 7 isbase:Sub>A cross-sectional view of the waterproof key structure shown in FIG. 4 taken along the direction A-A;
FIG. 8 is a second exploded perspective view of the waterproof key structure shown in FIG. 4;
fig. 9 is a schematic structural view of the combination of the key, the sealing plug and the sealing cover in the waterproof key structure shown in fig. 4;
fig. 10 is an exploded view of the key, sealing plug and sealing cover shown in fig. 9;
the meaning of the reference symbols in the drawings is:
100-waterproof key structure; 1-pressing a key; 11-pressing plate; 12-a pressing part; 121-a first groove; 122-a second groove; 13-a limiting part; 131-a limit bracket; a-a first support; b-a second support; c-lubricating the bevel; 2-a shell; 21-key pressing groove; 22-via holes; 23-a first assembly groove; 24-a second assembly groove; 3-a seal; 31-a sealing ring; 32-a sealing cover; 321-a yield opening; 322-a first avoidance slot; 33-a sealing plug; 331-raised strip portions; 332-step surface; 333-a second avoiding groove; 4-a buffer member; 200-traditional waterproof keys; 210-a housing piece; m-via holes; n-an assembly groove; 220-key press; 221-a touch portion; 222-a limiting part; 230-fastening steel sheets; 240-plastic cover plate.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 4-8, an embodiment of the invention provides a waterproof button structure 100, where the waterproof button structure 100 is used to connect a circuit in an electronic device, and includes: a key 1, a housing 2 press-fitted with the key 1, and a sealing member 3 for sealing the housing 2 from liquid and dust.
The push button 1 is provided to be pressable on the housing 2, and includes a push plate 11, a pressing portion 12 provided on the push plate 11, and a stopper portion 13 provided on the push plate 11. By pressing the pressing plate 11, the pressing portion 12 of the pressing plate 11 is pushed close to the internal switching electronic component and pressed, thereby turning on the internal circuit. The invention takes a dome switch used in a common electronic device as an example, and the pressing part 12 can press a metal dome in the dome switch to be conducted with an FPC by pressing the pressing plate 11, so as to realize the key function. The limiting part 13 can limit the pushing distance of the pressing part 12 in the pressing process, and avoid crushing the switch caused by too large pushing distance of the pressing part 12.
The sealing member 3 includes a sealing ring 31 with elasticity sleeved outside the pressing portion 12, a sealing cover 32 in sealing engagement with one assembling groove 23, and a sealing plug 33 in sealing engagement with the second assembling groove 24. When the key 1 is matched with the key slot 21, the limiting part 13 is accommodated in the second assembling groove 24, the pressing part 12 extends through the hole 22 to the first assembling groove 23, and the sealing ring 31 abuts against the inner wall of the sealing through hole 22. Because sealing washer 31 is the elastic sealing material, pressing the in-process of button 1, not only can seal via hole 22, avoid outside liquid and dust to enter into first assembly groove 23 through via hole 22 in, can also play the effect of kick-backing, can be after loosening button 1, kick-backing button 1 to the primary importance (in addition metal shrapnel in the metal dome formula switch also can have certain reaction force to pressing button 12 owing to pressed down to take place deformation). The sealing cover 32 and the sealing plug 33 are made of flexible plastic materials, and can seal the first assembly groove 23 and the second assembly groove 24, so that dust and liquid are prevented from further entering the interior of the first assembly groove 23 and the second assembly groove 24. In the first mounting groove 23, a switching electronic component, such as the above dome switch, may be mounted.
Specifically, after the button 1, the housing 2 and the sealing element 3 are installed, the button 11 is pressed, the pressing portion 12 and the limiting portion 13 on the button 11 are driven to move together in the housing 2, the pressing portion 12 pushes the switch electronic element in the first assembling groove 23 in the extending direction of the via hole 22, and the pressing switch electronic element is touched to be pressed so as to conduct a switch, in the pressing process, the limiting portion 13 is limited by the downlink space of the second assembling groove 24, when the limiting portion 13 pushes the groove wall of the second assembling groove 24 to be abutted, the button 1 cannot be pushed any more, the pressing portion 12 cannot be pushed towards the switch, the button 11 is released, and the button 1 returns to the original position under the elastic action of the sealing ring 31 and the electronic switch element.
In the waterproof key structure 100 according to the embodiment of the invention, the first assembly groove 23 for accommodating the pressing part 12 and the electronic switch element on the housing 2 and the second assembly groove 24 for accommodating the limiting part 13 are arranged at intervals, and only one through hole 22 matched with the pressing part 12 needs to be arranged, and liquid can be prevented from entering the first assembly groove 23 from the through hole 22 by abutting the sealing ring 31 sleeved outside the pressing part 12 against the through hole 22. Compared with the conventional waterproof key 200 in which three through holes M may cause leakage, the waterproof key structure 100 of the present invention only needs to seal one through hole 22 to prevent liquid from entering, thereby achieving a waterproof effect. In addition, by sealing the first and second fitting grooves 23 and 24 with the seal cover 32 and the seal plug 33, respectively, it is possible to further prevent liquid and dust from entering the inside from the first and second fitting grooves 23 and 24.
In an alternative embodiment, referring to fig. 4-7, 9 and 10, in order to seal the second assembly groove 24 tightly and prevent liquid and dust from entering through the second assembly groove 24 and affecting the connection path, the sealing plug 33 is in interference fit with the second assembly groove 24, and optionally, the sealing plug 33 includes a raised strip 331 abutting against the inner wall of the second assembly groove 24, and the sealing plug 33 is in interference fit with the second assembly groove 24 through the raised strip 331. Optionally, the sealing plug 33 includes a step surface 332 disposed on a side facing the second assembling groove 24, and the step surface 332 is in abutting engagement with the second bracket b, so that the sealing plug 33 is in step-engagement connection with the second assembling groove 24, and the limiting portion 13 is fixed. In addition, the sealing plug 33 can abut and fix the stopper 13, and the stopper 13 is prevented from wobbling in the second assembly groove 24. Optionally, the limiting portion 13 includes two limiting brackets 131 that are respectively disposed at two ends of the pressing portion 12 and symmetrically disposed, and the second assembling groove 24 and the sealing plug 33 are respectively disposed two by two and correspond to the limiting brackets 131. The sealing plug 33 is fixedly abutted against the stopper bracket 131. The limiting bracket 131 comprises a first bracket a extending from the pressing plate 11 and a second bracket b bent from the first bracket a far away from one end of the pressing plate 11, the second bracket b is arranged in parallel with the pressing plate 11, and the first bracket a and the second bracket b are combined into an L-shaped limiting bracket 131. Optionally, each limiting bracket 131 includes a lubricating inclined surface c, which is disposed at a joint of the first bracket a and the second bracket b, a slope matched with the lubricating inclined surface c is disposed in the second assembly groove 24, and through the cooperation between the lubricating inclined surface c and the slope, in the process of pressing the key 1, the limiting bracket 131 is facilitated to be pressed down, and the key 1 is prevented from being pressed and blocked. Optionally, the second assembling groove 24 has a certain downward space, so that when the key 1 is pressed, the pressing portion 12 can be abutted to the electronic switch element, and meanwhile, the limiting bracket 131 is limited by the downward space, so that the pressing portion 12 does not apply too much pressure to the electronic element, and the electronic element is prevented from being damaged. Optionally, the sealing plug 33 includes a first avoiding portion, which is a second avoiding groove 333 facing the outside of the second assembling groove 24, and the second avoiding groove 333 is provided to facilitate the assembling and disassembling of the sealing plug 33 and the assembling of the sealing plug 33.
In an alternative embodiment, referring to fig. 6, in order to fasten the sealing ring 31 on the outer side of the pressing portion 12 to prevent the sealing ring from sliding off, a first groove 121 is circumferentially formed on the outer wall of the pressing portion 12, and the first groove 121 is matched with the sealing ring 31.
In an alternative embodiment, referring to fig. 5, 7, 9 and 10, the sealing cover 32 is interference fitted with the first fitting groove 23 and abuts against the switch electronic component. The sealing cover 32 is provided with a second relief portion, which is a relief opening 321 shown in the figure, the relief opening 321 is provided on one side of the sealing cover 32 facing the first assembling groove 23, an electronic switch element is provided in the relief opening 321, the pressing portion 12 is opposite to the electronic switch element, and when the key 1 is pressed, the pressing portion 12 extends toward the electronic switch element and abuts against the electronic switch element, so as to turn on the switch. The sealing cover 32 includes a first avoiding portion, which is a first avoiding groove 322 facing the outside of the first assembling groove 23, and the first avoiding groove 322 is provided to facilitate the assembly and disassembly of the sealing cover 32 and the assembly of the sealing cover 32.
In an alternative embodiment, referring to fig. 6, one end of the pressing portion 12 away from the pressing plate 11 is provided with a second groove 122, the second groove 122 is recessed toward the pressing plate 11, and the waterproof key structure 100 further includes a buffer 4 matching with the second groove 122. The buffer 4 is made of flexible material and is disposed on the pressing portion 12 and the switch pressing side, so as to prevent the switch from being crushed by the pressing portion 12 in the process of pressing the switch.
The invention also provides an electronic device, which comprises the waterproof key structure 100, wherein the electronic device comprises but is not limited to a mobile phone, a tablet, a game machine and the like. Through setting up waterproof button 100, reduced the risk that liquid got into electronic equipment from waterproof button structure 100, made electronic equipment have good waterproof performance, extension electronic equipment's life.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The waterproof key structure is characterized by comprising:
the key comprises a pressing plate, a pressing part and a limiting part, wherein the pressing part and the limiting part are arranged on the pressing plate, the pressing part is used for switching on a switch, and the limiting part is used for limiting the position of the pressing part when the key is pressed;
the shell comprises a through hole matched with the pressing part, a first assembling groove communicated with the through hole and a second assembling groove which is arranged at intervals with the first assembling groove and is not communicated with the first assembling groove;
the sealing ring is sleeved outside the pressing part;
when the key is assembled on the shell, the pressing part penetrates through the via hole and extends to the first assembling groove, the sealing ring is abutted and sealed against the inner wall of the via hole to seal the via hole, the limiting part is accommodated in the second assembling groove, the pressing plate is pressed, and the pressing part extends to a switch electronic element in the first assembling groove and touches the switch electronic element to conduct the switch;
the waterproof key further comprises a sealing cover in sealing fit with the assembly groove and a sealing plug in sealing fit with the second assembly groove, the sealing cover is provided with a second yielding portion used for containing the switch electronic element, and the pressing portion is opposite to the switch electronic element.
2. The waterproof key structure according to claim 1, wherein the sealing plug is in interference fit with the second fitting groove and abuts against and fixes the stopper portion;
and/or the sealing cover is in interference fit with the first assembling groove and is abutted to fix the switch electronic element;
and/or the sealing plug and the sealing cover comprise a first relief part which is convenient to assemble.
3. The waterproof key structure according to claim 2, wherein the sealing plug includes a raised strip portion that abuts against an inner wall of the second fitting groove to cause interference fit of the sealing plug with the second fitting groove;
and/or the sealing plug comprises a step surface, and the step surface is abutted against the limiting part so that the sealing plug is connected with the limiting part in a step matching manner.
4. The waterproof key structure of claim 1, wherein the outer wall of the pressing portion is provided with a first groove circumferentially arranged, and the first groove is matched with the sealing ring.
5. The waterproof key structure of claim 1, wherein the pressing portion is provided with a second groove at an end of the first assembling groove, the second groove is recessed toward the pressing plate, and the waterproof key structure further comprises a buffer member matching with the second groove.
6. The waterproof key structure according to claim 1, wherein the limiting portion includes two limiting brackets which are respectively disposed at two ends of the pressing portion and symmetrically disposed, the second assembling groove and the sealing plug are disposed corresponding to the limiting brackets, and the sealing plug abuts against and fixes the limiting brackets.
7. The waterproof key structure of claim 6, wherein the limiting bracket comprises a first bracket connected with the pressing plate and a second bracket bent and extended from one end of the first bracket far away from the pressing plate, and the first bracket and the second bracket are combined into an L shape.
8. The waterproof key structure of claim 7, wherein a junction of said first bracket and said second bracket is provided with a lubricating ramp, said lubricating ramp mating with a ramp in said second mounting groove.
9. The waterproof key structure of claim 1, wherein the housing further comprises a key groove spaced apart from the first mounting groove and connected to the second mounting groove, the via hole connecting the key groove and the first mounting groove, the press plate portion being received in the key groove.
10. An electronic device, characterized in that the electronic device comprises the waterproof key structure of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818439.0A CN111986941B (en) | 2020-08-14 | 2020-08-14 | Waterproof button structure and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818439.0A CN111986941B (en) | 2020-08-14 | 2020-08-14 | Waterproof button structure and electronic equipment |
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| CN111986941A CN111986941A (en) | 2020-11-24 |
| CN111986941B true CN111986941B (en) | 2022-12-27 |
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| CN202010818439.0A Active CN111986941B (en) | 2020-08-14 | 2020-08-14 | Waterproof button structure and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114220687B (en) * | 2021-12-28 | 2024-02-09 | 歌尔科技有限公司 | Key structure and electronic equipment |
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| CN111986941A (en) | 2020-11-24 |
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