CN111710549A - Waterproof button structure and assembly method thereof - Google Patents

Abstract

The invention relates to a waterproof button structure and an assembling method thereof. The waterproof button structure includes a casing, a button and a sealing waterproof mechanism. The casing defines an assembly groove and has a through hole penetrating through the assembly groove. is arranged in the assembly groove and partially protrudes from the through hole, the sealing and waterproofing mechanism is interference fit with the casing, and the space corresponding to the assembly groove is independently isolated from the casing by the sealing and waterproofing mechanism The space on the opposite side of the assembly groove, so that when the waterproof key structure is installed on the electronic device, the keys and the assembly groove that can form the waterproof key structure are sealed and waterproofed by the waterproof key structure. The mechanism is isolated from the state of the internal cavity of the electronic device.

Description

Waterproof button structure and assembly method thereof

technical field

The invention relates to the field of electronic components, in particular to a waterproof key structure for electronic equipment and an assembling method thereof.

Background technique

With the popularization and application of electronic equipment, the performance requirements for electronic equipment in various application scenarios have also been improved, especially the waterproof and moisture-proof performance of electronic equipment, which determines whether electronic equipment is suitable for underwater operations or suitable for water vapor. Such as outdoor, bathroom and other application scenarios, and determine the resistance of electronic equipment to some emergencies such as being splashed with water or accidentally falling into water. The waterproof performance of the components of the electronic device will affect the overall waterproof performance of the electronic device, especially the key structure of the electronic device. Since the keys of the existing key structure need to be protruded to facilitate the user's pressing operation, when the key is pressed , there will inevitably be gaps between the shell of the key structure and the keys, so water can enter the inside of the shell of the key structure through these gaps. However, since the existing key structure is provided with electronic components that connect the internal circuits of the electronic equipment However, there is a gap, that is, the waterproof performance of the existing key structure is poor, and water can directly contact these electronic components inside the shell of the key structure, and can also contact the internal circuit of the electronic device through these electronic components, so there is a short circuit. risk, and may also cause damage to electronic equipment. It is also worth mentioning that due to the complex structure and arrangement of these electronic components, the overall structure of the key structure is relatively complex, which correspondingly makes the assembling steps of the existing key structure more complicated, the assembly efficiency is low, and the performance is poor. the pressing feel.

As shown in FIGS. 1 and 2, a conventional key structure 100P is illustrated. The button structure 100P includes a casing 10P, a button 20P, a control assembly 30P and a cover plate assembly 40P. The casing 10P is provided with an assembly groove 101P and a through hole 102P passing through the assembly groove 101P. 10P extends a fixing post 103P in the assembling slot 101P; the control assembly 30P includes an FPC board 31P and an electronic controller 32P, the FPC board 31P is arranged in the assembling slot 101P and is limited and fixed through a through hole 311P In the fixing post 103P, the button 20P is inserted into the housing 10P through the through hole 102P, and the one end of the button 20P is arranged on the FPC board 31P. The electronic controller 32P can be communicatively connected to the FPC board 31P and is engaged with the end of the button 20P, so that when the button 20P is pressed, the electronic controller 32P is driven by the button 20P to be driven by the button 20P. Start, so that the electronic controller 32P controls the circuit operation of the FPC board 31P; the cover plate assembly 40P is connected to the housing 10P to fix the control assembly 30P and the button 20P. Further, the cover plate assembly 40P includes a foam piece 41P, a steel sheet cover plate 42P and a plurality of screws 43P. The sheet cover 42P is fixedly connected to the housing 10P via a plurality of the screws 43P. It can be understood that, the existing key structure 100P achieves the sealing of the assembling groove 101P of the housing 10P by pressing and sealing the foam member 41P and the cover plate. However, due to all the The through hole 102P of the housing 10P is connected to the assembly groove 101P, and the control assembly 30P is disposed in the assembly groove 101P, so water can easily enter the assembly groove 101P through the through hole 102P, Furthermore, since the FPC board 31P is disposed in the mounting groove 101P, when water enters the mounting groove 101P through the through hole 102P, the FPC board 31P may contact with water and cause a short circuit. In addition, when the key structure 100P is installed in an electronic device, water may also enter the interior of the electronic device along the gap between the FPC board 31P and the key 20P, so there are other electronic devices that affect the interior of the electronic device. The risk of the working of the components may even cause a short circuit in the internal circuit of the electronic device, resulting in damage to the entire electronic device. It is also worth mentioning that the existing key structure 100P has a large number of assembly components and a complex structure, which correspondingly makes the assembly steps of the key structure 100P complicated and cumbersome. The efficiency of 100P assembly is lower, and the corresponding production cost is higher.

SUMMARY OF THE INVENTION

Based on this, the present invention provides a waterproof button structure and an assembling method thereof. The waterproof button structure is simple in structure, convenient and simple to assemble, and has good waterproof performance and operating feel.

A waterproof key structure suitable for being installed on an electronic device, comprising:

a casing, the casing defines an assembly groove and has a through hole passing through the assembly groove;

a button, the button is disposed in the assembling groove and partially protrudes from the through hole; and

A sealing and waterproof mechanism, the sealing and waterproofing mechanism is arranged in the assembling groove and is interference-fitted with the casing, so that the space corresponding to the assembling groove is independently isolated by the sealing and waterproofing mechanism from being opposite to the assembling groove The state of the space on one side of the waterproof button structure, so that when the waterproof button structure is installed on the electronic device, the button and the assembling groove that can form the waterproof button structure are independently isolated from the waterproof button structure by the sealing and waterproof mechanism. state of the internal cavity of the electronic device.

Preferably, the key is embedded with at least one magnetic member, so that the key can control the internal circuit of the electronic device through the magnetic induction of the magnetic member.

Preferably, the sealing and waterproofing mechanism comprises a waterproofing component and a sealing ring protruding between the waterproofing components, the waterproofing component is disposed in the assembling groove and forms the sealing ring to be an interference fit on the casing so as to form a state in which the sealing and waterproofing mechanism is in an interference fit with the casing.

Preferably, the waterproof key structure includes a cover plate, the cover plate is snap-connected to the casing and sealingly wraps the sealing and waterproof mechanism.

Preferably, the housing includes a front end portion and a rear end portion, the rear end portion integrally extends from the front end portion to define the assembling groove, and the housing extends from the rear end portion to form two extensions. The two extension pieces are provided with an engaging groove, and the cover plate is engaged with the engaging groove.

Preferably, the housing and the cover plate are in a state of being fastened and fixed by at least a pair of matching structures of a positioning column and a positioning hole, and are relatively fixed by at least a pair of matching structures of a limiting column and a limiting groove. status.

Preferably, the waterproof key structure includes a ball assembly, the waterproof assembly has a convex portion extending to a side away from the assembling groove, the convex portion is provided with an accommodating groove, and the ball assembly is disposed in the accommodating groove. slot to allow the key to be slid.

Preferably, the ball assembly includes a spring and a ball, and the key is provided with a plurality of sliding grooves, wherein when the key is slid so that the ball of the ball assembly is located in any of the sliding grooves, all the The button is switched to the corresponding position state, corresponding to control the corresponding working mode of the electronic device.

Preferably, the sealing and waterproofing mechanism includes a fixing member, and the fixing member is snapped and fixed to the convex portion of the waterproof assembly to fix the ball assembly and seal the accommodating groove.

Preferably, the waterproof assembly includes two plastic parts, and the sealing ring is clamped between the two plastic parts in a state of protruding from the two plastic parts.

Preferably, the sealing ring is arranged to be made of elastic material.

Preferably, the height of the portion of the sealing ring protruding from the waterproof assembly is set to 0.2 mm.

A method for assembling a waterproof button structure, comprising the following steps:

(a) set the button in the assembly groove of the casing;

(b) disposing the sealing and waterproofing mechanism in the assembling groove and interfering with the casing, so that the space corresponding to the assembling groove is independently isolated from the casing and the assembling by the sealing and waterproofing mechanism. the state of the space on the opposite side of the slot; and

(c) snap-connecting the cover plate to the casing to form a state in which the cover plate seals the sealing and waterproofing mechanism.

Preferably, in the step (b), the sealing and waterproofing mechanism includes a waterproofing component and a sealing ring protruding between the waterproofing components, the waterproofing component is disposed in the assembling groove and forms the seal The state of the ring interference fit in the housing.

Preferably, in the step (c), the casing is provided with an engaging groove, and the cover plate is engaged with the engaging groove and is formed by at least a pair of matching structures of a positioning column and a positioning hole The state of being fastened to each other, and the state of being relatively fixed is formed by at least one pair of matching structures of the limit post and the limit slot.

The waterproof button structure provided by the present invention can have good waterproof performance by providing at least two waterproof lines. If the mechanism is independently isolated from the space on the side of the casing opposite to the fitting groove, the sealing and waterproof mechanism can prevent water from flowing into the casing from the fitting groove on the side opposite to the fitting groove space, that is, the sealing and waterproof mechanism forms the first waterproof line of the waterproof button structure; the cover plate is snap-connected to the casing and sealingly wraps the sealing and waterproof mechanism, then the cover plate can Further, water is prevented from flowing into the space on the side opposite to the assembling groove of the casing, that is, the cover plate forms the second waterproof line of the waterproof key structure.

The key of the key structure of the present invention is embedded with at least one magnetic member, so that the key can control the internal circuit of the electronic device by means of magnetic induction control, so as to avoid physical contact in the prior art The gap generated by the controlled structure is beneficial to realize the good waterproof performance of the waterproof key structure. Moreover, since the waterproof key structure is configured to control the internal circuit of the electronic device by means of magnetic induction control, the complexity of the structure of physical contact control in the prior art can be avoided, thereby reducing the assembly of the waterproof key structure. The accessories can simplify the assembly steps, which is beneficial to improve the assembly efficiency of the waterproof key structure and save the production cost. The waterproof key structure of the present invention improves the waterproof performance while simplifying the structure and assembling steps, so it has a good economic prospect.

The cover plate and the casing of the waterproof key structure of the present invention are in a state of being fastened and fixed by at least one pair of matching structures of the positioning column and the positioning hole, and are connected by the positioning column and the limiting groove. At least one pair of mating structures forms a relatively fixed state, which avoids the complexity of connection by screws in the prior art, and can also maintain the overall beauty of the waterproof key structure. Furthermore, by arranging the ball assembly and the sealing ring made of elastic material, the waterproof key structure can be buffered by the ball assembly and the sealing ring when being operated, so as to have a good operating feel.

Further objects and advantages of the present invention will be fully realized by an understanding of the ensuing description and drawings.

Description of drawings

1 is a perspective view of an existing key structure;

Fig. 2 is a partial exploded view of the key structure shown in Fig. 1;

Fig. 3 is a partial exploded view of the key structure shown in Fig. 1;

4 is a perspective view of the waterproof key structure according to a preferred embodiment of the present invention;

5 is a perspective view of the waterproof key structure shown in FIG. 4 from another perspective;

6 is a partial exploded view of the waterproof key structure shown in FIG. 4;

FIG. 7 is a partial exploded view of the waterproof key structure shown in FIG. 4 .

The meanings of the symbols in the accompanying drawings are:

100P-key structure; 10P-shell; 101P-assembly slot; 102P-through hole; 103P-fixed column; 20P-button; 30P-control component; 31P-FPC board; 311P-through hole; 32P-electronic controller; 40P -Cover assembly; 41P-Foam; 42P-Steel cover; 43P-Screw;

100-waterproof key structure; 10-shell; 11-front end; 12-rear end; 121-extension piece; 122-positioning post; 123-limiting slot; 101-assembly slot; 102-through hole; 104- 20-key; 30-magnetic part; 40-cover; 41-positioning hole; 42-limiting post; 50-sealing waterproof mechanism; 51-waterproof assembly; 511-plastic part; 512-convex part; 5120-accommodating groove; 5121-buckle; 52-seal; 53-fix; 531-card; 532-slot; 60-ball assembly.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed 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 otherwise defined, 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 terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

As shown in FIGS. 3 to 7 , the waterproof key structure 100 according to a preferred embodiment of the present invention is illustrated. The waterproof key structure 100 is suitable for being installed in an electronic device, such as a mobile phone, a tablet computer, a TV, an air conditioner, a remote control and other electronic devices. The application of the waterproof key structure 100 is not limited in the present invention.

As shown in FIG. 3 , the waterproof button structure 100 includes a casing 10 , a button 20 and a sealing waterproof mechanism 50 . The casing 10 defines an assembly groove 101 and has a through hole 102 passing through the assembly groove 101 . The button 20 is disposed in the assembly groove 101 and partially protrudes from the through hole 102 , and the sealing and waterproof mechanism 50 is disposed in the assembly groove 101 and is interference-fitted with the housing 10 , thereby forming the The state in which the space corresponding to the mounting groove 101 is independently isolated from the space on the side opposite to the mounting groove 101 by the sealing and waterproof mechanism 50, so that when the waterproof key structure 100 is installed on the electronic device, it can be formed The key 20 and the assembling groove 101 of the waterproof key structure 100 are independently isolated from the inner cavity of the electronic device by the sealing and waterproof mechanism 50 .

Further, the sealing and waterproofing mechanism 50 includes a waterproofing component 51 and a sealing ring 52 protruding between the waterproofing components 51 . The waterproofing component 51 is disposed in the assembling groove 101 of the housing 10 and formed The sealing ring 52 is in a state of interference fit with the casing 10 , so that the sealing and waterproof mechanism 50 is in an interference-fitted state with the casing 10 , and the casing 10 is protected by the sealing and waterproof mechanism 50 . Separated to form an independent space on both sides of the sealing and waterproofing mechanism 50 , that is, the space corresponding to the assembly groove 101 is independently isolated by the sealing and waterproofing mechanism 50 from the housing 10 opposite to the assembly groove 101 . A space on one side, so that when the waterproof button structure 100 is installed on the electronic device, the button 20 and the assembly groove 101 that can form the waterproof button structure 100 are independently isolated by the sealing and waterproof mechanism 50 in the state of the cavity of the electronic device.

It can be understood that, when the waterproof key structure 100 is installed on the electronic device, the space on the side of the housing 10 opposite to the mounting groove 101 is set in the inner cavity of the electronic device, because The assembly groove 101 is independently isolated from the space on the side of the housing 10 opposite to the assembly groove 101 by the sealing and waterproof mechanism 50 , so even if the through hole 102 penetrates through the assembly groove 101 and There is a gap between the button 20 and the casing 10, and water can only enter the assembly groove 101 but cannot enter the casing 10 through the assembly groove 101 on the side opposite to the assembly groove 101. Space, that is, water cannot flow into the inner cavity of the electronic device from the assembling groove 101 , so the waterproof key structure 100 has good waterproof performance.

In other words, the operation space corresponding to the button 20 and the space corresponding to the assembling groove 101 and the space on the side of the casing 10 opposite to the assembling groove 101 are independent of each other. When the 100 is installed on the electronic device, the key 20 and the assembling groove 101 capable of forming the waterproof key structure 100 are independently isolated from the inner cavity of the electronic device by the sealing and waterproof mechanism 50 .

Further, the waterproof button structure 100 includes a cover plate 40, the cover plate 40 is snap-connected to the casing 10 and seals the waterproof mechanism 50, and the cover plate 40 forms the waterproof button The second waterproof line of the structure 100, that is to say, even if water can seep out from the sealing and waterproofing mechanism 50, the cover plate 40 can also block the water from flowing into the inner cavity of the electronic device. Therefore, in general, The waterproof key structure 100 of the present invention has at least two waterproof lines and can have good waterproof performance.

Specifically, the housing 10 includes a front end portion 11 and a rear end portion 12 , the rear end portion 12 integrally extends from the front end portion 11 to define the mounting groove 101 , and the housing 10 is further formed in the Two extension pieces 121 are formed extending from the rear end 12 , an engaging groove 104 is disposed between the two extending pieces 121 , and the cover plate 40 is engaged with the engaging groove 104 to form the cover plate 40 The state of being snapped and connected to the casing 10 .

Further, the housing 10 is provided with at least one positioning post 122 and at least one limiting slot 123 , wherein the corresponding position of the cover plate 40 is provided with at least one positioning hole 41 and at least one limiting post 42 , wherein When the positioning holes 41 of the cover plate 40 are engaged with the positioning posts 122 and the limiting posts 42 are limited in the limiting grooves 123 , the cover plate 40 is snap-fastened to The state of the housing 10 .

It can be understood that the positioning holes 41 and the positioning posts 122 can be arranged in opposite directions, that is, the housing 10 can be provided with at least one positioning hole 41 , and the cover plate 40 can be At least one positioning post 122 is provided, and the positioning hole 41 of the casing 10 is snapped on the positioning post 122 of the cover plate 40 to form the casing 10 and the cover plate 40 The snap connection between them is not limited in the present invention.

It can also be understood that the limiting slot 123 and the limiting column 42 may also be arranged in opposite directions, and specifically, the housing 10 may be provided with the limiting column 42, wherein the limiting column 42 The cover plate 40 may be provided with the limiting groove 123 , wherein the limiting column 42 of the housing 10 is limited in the limiting groove 123 of the cover plate 40 to form the housing 10 and The state in which the relative positions of the cover plates 40 are fixed is also not limited in the present invention.

It should be understood that the housing 10 and the cover plate 40 are in a state of being fastened and fixed by at least one pair of matching structures of the positioning post 122 and the positioning hole 41, and pass through the limiting post 42 and at least a pair of matching structures of the limiting grooves 123 form a relatively fixed state, which avoids the tedious operation of screw fixing in the prior art, makes assembly faster and more convenient, and is also beneficial to ensure the waterproof button structure. 100 overall good looks.

It is worth mentioning that the cover plate 40 can be made of plastic or metal, but not limited to. Preferably, in this preferred embodiment of the present invention, the cover plate 40 is configured to be made of plastic, so as to facilitate the assembly of the cover plate 40 to the housing 10 and ensure good waterproof performance.

Further, the waterproof component 51 includes two plastic parts 511 , wherein the sealing ring 52 is clamped between the two plastic parts 511 in a state of protruding from the two plastic parts 511 and is connected with the two plastic parts 511 . The plastic parts 511 form a fixed connection structure. Specifically, in practical production applications, the two plastic parts 511 can be integrally molded and a mounting groove is reserved, and the sealing ring 52 is arranged in the mounting groove to form Protruding from the two plastic parts 511 , the two plastic parts 51 can be assembled with the sealing ring 52 into an integral structure and then installed on the casing 10 , so that the sealing and waterproof mechanism 50 can be The assembly of the casing 10 is beneficial to make the waterproof key structure 100 have good waterproof performance.

In particular, the height of the portion of the sealing ring 52 protruding from the waterproof component 51 is set to 0.2 mm, so that when the waterproof component 51 is set in the assembling groove 101 of the housing 10, The sealing ring 52 can be interference-fitted with the housing 10 , so that the button 20 and the assembling groove 101 can be sealed and isolated from one side of the waterproof sealing mechanism 50 , so that the sealing and waterproofing can be achieved. The mechanism 50 can block the water in the assembling groove 101 from flowing into the other side of the sealing and waterproof mechanism 50 , that is, when the waterproof button structure 100 is installed on the electronic device, the sealing and waterproof mechanism 50 forms the The first waterproof line of the waterproof button structure 100 can prevent water from flowing into the inner cavity of the electronic device through the assembling groove 101 .

It is worth mentioning that the sealing ring 52 is made of an elastic material and has elasticity, so as to maintain the waterproofness of the sealing and waterproofing mechanism 50 when the button 20 is operated against the waterproof assembly 51 . performance, and can play a buffering role, so that the pressing of the key 20 has a good operating feel.

It should be understood that the operated action of the key 20 can be implemented as a pressed operation or a sliding operation. Correspondingly, the waterproof key structure 100 is provided with a function that can realize the pressed operation of the key 20 The corresponding structure of the waterproof key structure 100 is provided with a corresponding structure capable of realizing the sliding operation of the key 20, which is not limited in the present invention. The structure in which the key 20 is slid is realized, that is, the key 20 is slid to control and switch different working modes of the electronic device. Specifically, the waterproof button structure 100 includes a ball assembly 60 , wherein the waterproof assembly 51 extends a convex portion 512 to a side away from the assembling groove 101 , wherein the convex portion 512 is provided with an accommodating groove 5120 , The ball assembly 60 is disposed in the accommodating groove 5120 to allow the key 20 to be slid. More specifically, the ball assembly 60 includes a spring and a ball, and the key 20 is provided with a plurality of sliding grooves, wherein the key 20 is slid so that the ball of the ball assembly 60 is located on the key 20 When any one of the chute, the button 20 is switched to the corresponding position state, corresponding to control the corresponding working mode of the electronic device.

In other words, by sliding the button 20 so that the balls of the ball assembly 60 are located in different sliding grooves of the button 20, the different position states of the button 20 can be switched correspondingly, so as to The different position states of the button 20 are used to control the corresponding working mode of the electronic device.

For example, taking the electronic device implemented as a mobile phone and the button 20 provided with three sliding grooves as an example, when the button 20 is slid, the ball is located at the first position of the button 20 . When the sliding groove is placed, the mobile phone is switched to the volume mode; when the button 20 is slid so that the ball is located in the second sliding groove of the button 20, the mobile phone is switched to the vibration mode; When the button 20 is slid so that the ball is located in the third sliding slot of the button 20, the mobile phone is switched to the silent mode. It should be understood that the different position states of the button 20 may correspond to different working modes of the electronic device, that is, the working mode of the electronic device may be one of volume, vibration, mute, screen lock, etc. or There may be various combinations, and there may also be various combinations of the different position states of the button 20 and the working modes of the electronic device, which are not limited in the present invention.

It should also be understood that the number of the sliding grooves of the key 20 may also be two, four, five or other numbers, which are not limited in the present invention.

It is worth mentioning that the ball assembly 60 includes the spring so that the key 20 can have a good operating feel.

Particularly, the key 20 is embedded with at least one magnetic member 30 , so that the key 20 can control the internal circuit of the electronic device through the magnetic induction of the magnetic member 30 .

It can be understood that the waterproof key structure 100 of the present invention controls the internal circuit of the electronic device by means of magnetic induction control, so that the control of the internal circuit of the electronic device by the key 20 does not need to be set through The internal electronic connection structure of the electronic device is beneficial to realize the good waterproof performance of the sealing and waterproof mechanism 50, and avoids the complex structure and complex assembly steps corresponding to the physical contact control method, and correspondingly reduces and simplifies all The accessories of the waterproof button structure 100 are beneficial to the rapid assembly of the waterproof button 20 , thereby improving the assembly efficiency of the waterproof button 20 and reducing the production cost of the waterproof button 20 .

Further, the sealing and waterproofing mechanism 50 includes a fixing member 53, wherein the fixing member 53 is snapped and fixed to the convex portion 512 of the waterproof component 51 to fix the spring and the ball on the The accommodating groove 5120 of the protruding portion 512 seals the accommodating groove 5120 , thereby ensuring the structural stability and waterproof performance of the sealing and waterproof mechanism 50 .

Specifically, the protruding portion 512 is formed with two latching pieces 5121 , wherein the fixing piece 53 has a latching plate 531 and two latching groove pieces 532 extending from both sides of the latching plate 531 , wherein the fixing The latching member 532 of the member 53 is latched to the latching member 5121 of the protruding portion 512 to form a state in which the fixing member 53 is latched and fixed to the protruding portion 512 .

It can be understood that, the clasp member 5121 and the clasp groove can be reversely arranged, which is not limited in the present invention.

As shown in FIG. 7 , the assembly process of the waterproof key structure 100 according to the present invention is illustrated. That is to say, the present invention further provides an assembling method of the waterproof key structure 100, comprising the following steps:

(a) disposing the button 20 in the assembling groove 101 of the housing 10;

(b) Disposing the sealing and waterproofing mechanism 50 in the assembling groove 101 of the casing 10 and interference fit on the casing 10 to form the space corresponding to the assembling groove 101 by the sealing and waterproofing mechanism 50 is independently isolated from the space on the opposite side of the housing 10 from the fitting groove 101; and

(c) The cover plate 40 is snap-connected to the housing 10 to form a state in which the cover plate 40 seals the sealing and waterproofing mechanism 50 .

It is worth mentioning that, in the step (b), the sealing and waterproofing mechanism 50 includes the waterproofing component 51 and the sealing ring 52 protruding between the waterproofing components 51 . When the waterproof component 51 is disposed in the assembling groove 101 of the housing 10 , the sealing ring 52 can be in a state of interference fit with the housing 10 .

In addition, it is also worth mentioning that in the step (c), the housing 10 is provided with the engaging groove 104 , and the cover plate 40 is engaged with the engaging groove 104 and formed by at least a pair of mating structures of the positioning post 122 and the positioning hole 41 to form a state of being fastened and fixed, and formed by at least a pair of mating structures of the limiting post 42 and the limiting groove 123 relatively fixed state.

It can be understood that the waterproof key structure 100 of the present invention improves the performance of the waterproof key structure 100 while reducing the number of accessories to simplify the structure and assembly steps, so based on the high assembly efficiency of the waterproof key structure 100 And low production cost, the waterproof key structure 100 of the present invention has a good economic prospect.

The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, all It is considered to be the range described in this specification.

The above examples only represent the preferred embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims (15)

1. Waterproof button structure is suitable for being installed in an electronic equipment, its characterized in that includes:

a housing defining a fitting groove and having a through hole penetrating the fitting groove;

the key is arranged in the assembling groove and partially protrudes out of the through hole; and

the waterproof sealing mechanism is arranged in the assembling groove and is in interference fit with the shell, so that a state that a space corresponding to the assembling groove is independently isolated from a space on one side opposite to the assembling groove by the waterproof sealing mechanism is formed, and when the waterproof key structure is installed on the electronic equipment, a state that the key and the assembling groove of the waterproof key structure are independently isolated from an inner cavity of the electronic equipment by the waterproof sealing mechanism can be formed.

2. The waterproof key structure of claim 1, wherein the key is embedded with at least one magnetic member for controlling an internal circuit of the electronic device by the key via magnetic induction of the magnetic member.

3. The waterproof key structure according to claim 2, wherein the waterproof seal mechanism includes a waterproof member and a seal ring protrudingly provided between the waterproof members, the waterproof member being provided in the fitting groove and forming a state in which the seal ring is interference-fitted to the housing, thereby forming a state in which the waterproof seal mechanism is interference-fitted to the housing.

4. The waterproof key structure of claim 3, wherein said waterproof key structure comprises a cover plate snap-coupled to said housing and sealingly enclosing said waterproof seal mechanism.

5. The waterproof key structure according to claim 4, wherein said housing includes a front end portion and a rear end portion, said rear end portion integrally extends from said front end portion to define said fitting groove, said housing is formed with two extending members extending from said rear end portion, a locking groove is provided between said two extending members, and said cover plate is locked in said locking groove.

6. The waterproof key structure of claim 5, wherein the housing and the cover plate are fastened and fixed by at least one pair of mating structures of the positioning posts and the positioning holes, and are fixed relative to each other by at least one pair of mating structures of the limiting posts and the limiting grooves.

7. The waterproof key structure according to any one of claims 3 to 6, wherein said waterproof key structure comprises a ball assembly, said waterproof assembly having a protrusion extending to a side away from said fitting groove, said protrusion being provided with a receiving groove, said ball assembly being provided in said receiving groove to allow said key to be slid.

8. The waterproof key structure of claim 7, wherein said ball assembly comprises a spring and a ball.

9. The waterproof key structure of claim 7, wherein said waterproof seal mechanism comprises a fastener that is snap-fit to said boss of said waterproof assembly.

10. The waterproof key structure according to any one of claims 3 to 6, wherein said waterproof member includes two plastic members, and said seal ring is held between said two plastic members in a state of protruding from said two plastic members.

11. The waterproof key structure of claim 10, wherein said sealing ring is provided of an elastomeric material.

12. The waterproof key structure according to claim 10, wherein the height of the portion of the seal ring protruding from the waterproof member is set to 0.2 mm.

13. The assembling method of the waterproof key structure is characterized by comprising the following steps of:

(a) arranging a key in an assembly groove of the shell;

(b) arranging a waterproof sealing mechanism in the assembling groove and performing interference fit on the shell to form a state that a space corresponding to the assembling groove is independently isolated from a space on one side opposite to the assembling groove by the waterproof sealing mechanism; and

(c) and clamping and connecting the cover plate to the shell to form a state that the cover plate is hermetically wrapped on the sealing waterproof mechanism.

14. The method of claim 13, wherein in step (b), the waterproof sealing mechanism includes a waterproof member and a seal ring protrudingly disposed between the waterproof members, the waterproof member being disposed in the fitting groove and forming a state in which the seal ring is interference-fitted to the housing.

15. The method as claimed in claim 13 or 14, wherein in the step (c), the housing is provided with a snap groove, and the cover plate is snapped into the snap groove and is fixed by at least one pair of mating structures of the positioning post and the positioning hole, and is fixed by at least one pair of mating structures of the position-limiting post and the position-limiting groove.

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