CN107360294B - Waterproof construction and cell-phone - Google Patents
Waterproof construction and cell-phone Download PDFInfo
- Publication number
- CN107360294B CN107360294B CN201710818142.2A CN201710818142A CN107360294B CN 107360294 B CN107360294 B CN 107360294B CN 201710818142 A CN201710818142 A CN 201710818142A CN 107360294 B CN107360294 B CN 107360294B
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- Prior art keywords
- sealing ring
- waterproof
- rubber sealing
- hard rubber
- annular groove
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
- H04M1/185—Improving the rigidity of the casing or resistance to shocks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B2001/3894—Waterproofing of transmission device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Gasket Seals (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention provides a waterproof structure and a mobile phone, wherein the waterproof structure comprises a first shell, a second shell and a waterproof sealing ring arranged between the first shell and the second shell, the waterproof sealing ring comprises a soft rubber sealing ring and a hard rubber sealing ring, and the soft rubber sealing ring and the hard rubber sealing ring are integrally formed through an injection molding process. The waterproof structure and the mobile phone provided by the invention solve the problems of easy deformation, difficult installation, high waterproof reject ratio of the traditional waterproof structure, and have the advantages of difficult deformation, low assembly difficulty, good waterproof effect and the like.
Description
Technical Field
The invention relates to the technical field of mobile phones, in particular to a waterproof structure and a mobile phone.
Background
With the rapid development of the wireless communication industry, the use of mobile phones is now spread around the globe. Because the electric base plate and the circuit are arranged in the mobile phone, once water is immersed in the mobile phone, the electric base plate and the circuit are corroded by the water, even short circuit is caused, and mobile phone components are damaged. Therefore, the waterproof function of the mobile phone has become an indispensable important part, and higher requirements are put on the waterproof performance of the mobile phone.
The waterproof mobile phone in the prior art generally adopts a structure that a front shell and a rear shell of the mobile phone are sealed by a whole circle of waterproof rubber ring, a mounting groove for mounting the waterproof rubber ring is formed in the front shell of the mobile phone or the rear shell of the mobile phone, and the waterproof rubber ring is arranged in the mounting groove and then is extruded by the joint interference of the front shell of the mobile phone and the rear shell of the mobile phone, so that the functions of sealing and waterproofing are achieved.
However, in the waterproof structure of this form, the waterproof flexible glue is relatively soft and is easy to deform, so that the installation difficulty is high, adverse phenomena such as torsion and stretching are easy to occur during installation, the packaging and transportation are difficult, the rubber ring is easy to damage, and the waterproof reject ratio is high after assembly.
Disclosure of Invention
The invention provides a waterproof structure and a mobile phone, which are used for solving the problems that the traditional waterproof structure is easy to deform, has high installation difficulty, is easy to generate adverse phenomena such as torsion and stretching during installation, and further has high waterproof reject ratio after assembly.
In one aspect, the present invention provides a waterproof structure comprising: the waterproof sealing ring comprises a soft rubber sealing ring and a hard rubber sealing ring, wherein the soft rubber sealing ring and the hard rubber sealing ring are integrally formed through an injection molding process.
According to the waterproof structure provided by the invention, the waterproof sealing ring is extruded by the interference of the first shell and the second shell, so that the waterproof sealing effect is achieved. The soft rubber sealing ring and the hard rubber sealing ring are combined together, so that the strength of the waterproof sealing ring is increased, the waterproof sealing ring is not easy to deform, and adverse phenomena such as stretching and twisting are not easy to occur in the assembly process, so that the waterproof reject ratio after assembly is reduced. Meanwhile, the monomer stability of the waterproof sealing ring is enhanced, and the difficulty in packaging and transportation is reduced. The soft rubber sealing ring and the hard rubber sealing ring are integrally formed through injection molding, the manufacturing process is simple, the soft rubber sealing ring and the hard rubber sealing ring are tightly combined after forming, are not easy to separate and fall off, and the waterproof structure is still effective in multiple disassembly and assembly, so that the service life of the waterproof structure is prolonged.
Further, an annular groove is formed in the end portion of the side wall of the second shell, the waterproof sealing ring is arranged in the annular groove, and the side wall of the first shell is arranged in the annular groove and abuts against the waterproof sealing ring.
Therefore, the waterproof sealing ring is extruded by the annular groove wall at the end part of the side wall of the second shell and the side wall of the first shell, so that the sealing waterproof effect is realized.
Further, the soft rubber sealing ring is abutted against the first shell, and the hard rubber sealing ring is abutted against the second shell.
Further, the cross section of the soft rubber sealing ring is circular, the cross section of the hard rubber sealing ring is rectangular, one side of the rectangular is a concave arc, at least part of the circular shape is overlapped with the concave arc, and the width of the rectangular is smaller than the diameter of the circular shape;
further, the annular groove comprises a first accommodating space and a second accommodating space, the first accommodating space is used for accommodating the hard rubber sealing ring, the second accommodating space is used for accommodating the soft rubber sealing ring, and the width of the second accommodating space is larger than that of the first accommodating space.
Therefore, the hard rubber sealing ring provided by the invention has the functions of fixing and supporting the soft rubber sealing ring, and the soft rubber sealing ring has the function of realizing a sealing waterproof effect through interference to the shell.
Further, a positioning convex part is arranged on the hard rubber sealing ring, and a positioning groove matched with the positioning convex part is arranged at the bottom of the annular groove.
Further, two positioning convex parts are arranged on each of two opposite long sides of the hard rubber sealing ring.
Further, the positioning convex part is a positioning boss, the section of the positioning boss is rectangular, and the section width of the positioning boss is the same as the section width of the hard rubber sealing ring.
Therefore, the positioning convex part is convenient for positioning the waterproof sealing ring during assembly, and the problem of high waterproof reject ratio caused by high assembly difficulty can be effectively avoided.
Further, a limiting step is further arranged outside the side wall of the first shell, and the outer side wall of the annular groove abuts against the limiting step.
According to the waterproof structure provided by the embodiment of the invention, the waterproof sealing ring is extruded through the interference of the side wall of the first shell and the annular groove wall of the second shell, so that the waterproof sealing ring has a sealing and waterproof effect. The hard rubber sealing ring plays a role in fixing and supporting the soft rubber sealing ring, and the soft rubber sealing ring has three parts in total and is in interference sealing with the shell, so that the waterproof effect is good. Further, the soft rubber sealing ring and the hard rubber sealing ring are combined together, so that the strength of the waterproof sealing ring is increased, the waterproof sealing ring is not easy to deform, and adverse phenomena such as stretching and twisting are not easy to occur in the assembly process. Meanwhile, the positioning structure is arranged on the hard rubber sealing ring and the annular groove, so that the assembly difficulty is reduced, and the waterproof defective rate after assembly is further reduced. The monomer stability of the waterproof sealing ring is enhanced, and the waterproof sealing ring is easier to package and transport. Moreover, the soft rubber sealing ring and the hard rubber sealing ring are integrally formed through double colors, the manufacturing process is simple, the soft rubber sealing ring and the hard rubber sealing ring are tightly combined after being formed, the soft rubber sealing ring and the hard rubber sealing ring are not easy to separate and fall off, the waterproof structure is still effective in multiple disassembly and assembly, and the service life of the waterproof structure is prolonged.
The invention also provides a mobile phone comprising the waterproof structure.
The first shell is a front shell, and the second shell is a rear shell.
According to the mobile phone provided by the invention, the waterproof sealing ring is extruded by the interference of the side wall of the front shell and the annular groove wall of the rear shell, so that the sealing waterproof effect is achieved. The hard rubber sealing ring plays a role of fixedly supporting the soft rubber sealing ring, three sides of the soft rubber sealing ring are in interference sealing with the shell, and the waterproof effect is good. The soft rubber sealing ring and the hard rubber sealing ring are combined together, so that the strength of the waterproof sealing ring is increased, the waterproof sealing ring is not easy to deform, and adverse phenomena such as stretching and twisting are not easy to occur in the assembly process. Meanwhile, the positioning structure is arranged on the hard rubber sealing ring and the annular groove, so that the assembly difficulty is reduced, and the waterproof defective rate after assembly is further reduced. The monomer stability of the waterproof sealing ring is enhanced, and the waterproof sealing ring is easier to package and transport. The soft rubber sealing ring and the hard rubber sealing ring are integrally formed through injection molding, the manufacturing process is simple, the soft rubber sealing ring and the hard rubber sealing ring are tightly combined after forming, are not easy to separate and fall off, and the waterproof structure is still effective in multiple disassembly and assembly, so that the service life of the waterproof structure is prolonged.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of a waterproof structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a waterproof seal ring according to an embodiment of the present invention;
fig. 3 is an exploded view of a waterproof structure according to an embodiment of the present invention.
Reference numerals:
1-a first housing;
10-limiting steps;
2-a second housing;
20-grooves;
201-a first accommodating space;
202-a second accommodating space;
3-a waterproof sealing ring;
31-a soft rubber sealing ring;
32-a hard rubber sealing ring;
33-positioning projections.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "top", "bottom", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", etc. are used to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the referred location or element must have a specific orientation, in a specific configuration and operation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can lead the interior of two elements to be communicated or lead the two elements to be in interaction relationship. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The invention is described below with reference to specific embodiments in conjunction with the accompanying drawings.
Fig. 1 is a cross-sectional view of a waterproof structure according to an embodiment of the present invention, as shown in fig. 1, where the waterproof structure provided in this embodiment includes: the waterproof sealing device comprises a first shell 1, a second shell 2 and a waterproof sealing ring 3 arranged between the first shell 1 and the second shell 2, wherein the waterproof sealing ring 3 comprises a soft rubber sealing ring 31 and a hard rubber sealing ring 32, and the soft rubber sealing ring 31 and the hard rubber sealing ring 32 are integrally formed through an injection molding process.
In this embodiment, the waterproof gasket 3 has a ring-shaped structure, and has an overall shape similar to that of the first housing 1 and the second housing 2, for example, rectangular, so as to seal all sides of the first housing 1 and the second housing 2. The waterproof gasket 3 may be disposed between the first housing 1 and the second housing 2. The first casing 1 and the second casing 2 can be detachably connected in a buckling manner and the like, and the waterproof sealing ring 3 is clamped between the first casing and the second casing.
Specifically, the waterproof gasket 3 includes a soft rubber gasket 31 and a hard rubber gasket 32. Wherein, the hardness of the hard rubber sealing ring 32 is larger than that of the soft rubber sealing ring 31. The soft rubber seal ring 31 plays a sealing role by interfering the first shell 1 and the second shell 2, and the hard rubber seal ring 32 plays a fixing and supporting role on the soft rubber seal ring 31.
The soft rubber sealing ring 31 and the hard rubber sealing ring 32 of the embodiment are combined together, so that the strength of the waterproof sealing ring 3 is increased, the waterproof sealing ring 3 is not easy to deform, adverse phenomena such as stretching and twisting are not easy to occur in the assembling process, and the waterproof reject ratio after the assembly is reduced. Meanwhile, the monomer stability of the waterproof sealing ring 3 is enhanced, and the difficulty in packaging and transportation is reduced.
The soft rubber seal ring 31 and the hard rubber seal ring 32 can be integrated and injection molded. Specifically, the soft rubber seal ring 31 and the hard rubber seal ring 32 may be integrally formed by a two-shot molding process. It should be noted that the two-shot molding process requires the bonding between the two materials. Alternatively, the material of the soft rubber seal ring 31 may be silicone rubber or Thermoplastic Polyurethane (TPU), and the material of the hard rubber seal ring 32 may be Polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), or a mixture of Polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS). The waterproof sealing ring 3 formed by double-color injection molding has the advantages of high rigidity, high strength, convenient realization of mechanical automation in the production process, high production efficiency and the like.
The soft rubber sealing ring 31 and the hard rubber sealing ring 32 are integrally formed through an injection molding process, the manufacturing process is simple, the soft rubber sealing ring 31 and the hard rubber sealing ring 32 are tightly combined after being formed, are not easy to separate and fall off, and the waterproof structure is effectively assembled and disassembled for many times, so that the service life of the waterproof structure is prolonged.
The waterproof structure provided by the embodiment has the sealing waterproof function by the interference extrusion of the first shell and the second shell on the waterproof sealing ring. The soft rubber sealing ring and the hard rubber sealing ring are combined together, so that the strength of the waterproof sealing ring is increased, the waterproof sealing ring is not easy to deform, and adverse phenomena such as stretching and twisting are not easy to occur in the assembly process, so that the waterproof reject ratio after assembly is reduced. Meanwhile, the monomer stability of the waterproof sealing ring is enhanced, and the difficulty in packaging and transportation is reduced. The soft rubber sealing ring and the hard rubber sealing ring are integrally formed through an injection molding process, the manufacturing process is simple, the soft rubber sealing ring and the hard rubber sealing ring are tightly combined after being formed, are not easy to separate and fall off, and the waterproof structure is still effective in multiple disassembly and assembly, so that the service life of the waterproof structure is prolonged.
The structure of each component will be described in detail below using detailed examples.
As shown in fig. 1, the end of the side wall of the second housing 2 is provided with an annular groove 20, the waterproof seal ring 3 is disposed in the annular groove 20, and the side wall of the first housing 1 is disposed in the annular groove 20 and abuts against the waterproof seal ring 3.
In this embodiment, the waterproof sealing ring 3 is disposed in the annular groove 20 at the end of the side wall of the second housing 2, and the side wall of the first housing 1 is disposed in the annular groove 30 and abuts against the waterproof sealing ring 3. After the first shell 1 and the second shell 2 are assembled, the wall surface of the annular groove 20 at the end part of the side wall of the second shell 2 and the side wall of the first shell 1 squeeze the waterproof sealing ring 3 at the same time, so that water can be prevented from penetrating into the shell from the gap between the first shell 1 and the second shell 2, and a good waterproof and sealing effect is achieved. Meanwhile, the waterproof sealing ring 3 is positioned in the annular groove 20, the position of the waterproof sealing ring is stable, and the problems of poor sealing effect, poor assembly stability and the like caused by displacement and dislocation of the waterproof sealing ring 3 are avoided.
The side walls of the first casing 1 and the second casing 2 and the annular groove 20 are arranged in a simple structure under the condition of meeting the function of the waterproof sealing ring 3, so that the light and thin casing is realized. Alternatively, the side wall of the first housing 1 may not be disposed in the annular groove 20, but by disposing a boss and a clamping portion with more complex structures on the side wall of the first housing 1, the matching with the annular groove 20 is achieved, and the purpose of fixing and interfering with the waterproof sealing ring 3 can be achieved, so as to achieve better assembly effect and sealing effect.
It should be noted that, the shape of the annular groove 20 is not limited, and the notch thereof may be rectangular, circular, polygonal, etc., and only the interference stability between the waterproof sealing ring 3 and the annular groove wall 20 is ensured. Further, the notch shape of the annular groove 20 in this embodiment is rectangular in view of simple process and easy operation.
On the basis of the above embodiment, the soft rubber seal ring 31 abuts against the first housing 1, and the hard rubber seal ring 32 abuts against the second housing 2. Specifically, the waterproof sealing ring 3 is located between the annular groove 20 and the side wall of the first housing 1, wherein the hard rubber sealing ring 32 is located at one end of the annular groove 20 and abuts against the second housing 2, and the soft rubber sealing ring 31 is located at one end of the side wall of the first housing 1 and abuts against the first housing 1. The hard rubber sealing ring 32 is abutted against the first shell 1, and plays a role in fixing the soft rubber sealing ring 31 and preventing the soft rubber sealing ring 31 from shifting and deforming. One side of the soft rubber sealing ring 31 is connected with the hard rubber sealing ring 32, the other side is abutted against the second shell 2, and meanwhile, the sides of the two sides of the soft rubber sealing ring interfere with the first shell 1, namely, the soft rubber sealing ring 31 is interfered with the shells in three parts, so that a closed space can be formed, and the sealing performance is better.
In this embodiment, the cross section of the soft rubber seal ring 31 is circular, the cross section of the hard rubber seal ring 32 is rectangular with one side being a concave arc, at least part of the circular shape coincides with the concave arc, and the width of the rectangular shape is smaller than the diameter of the circular shape. Specifically, the notch shape of the annular groove 20 is rectangular, the hard rubber sealing ring 32 is completely accommodated in the annular groove 20, and the matching tolerance is negligible, so that the hard rubber sealing ring 32 is stably installed, and displacement dislocation can not occur. The cross section of the soft rubber sealing ring 31 is circular, the diameter of the soft rubber sealing ring is larger than the width of the cross section of the hard rubber sealing ring 32, the cross section of the hard rubber sealing ring 32 is rectangular, one side of the cross section is concave arc, at least part of the circular cross section of the soft rubber sealing ring 31 is overlapped with the concave arc of the cross section of the hard rubber sealing ring 32, so that the combined area of the soft rubber sealing ring 31 and the hard rubber sealing ring 32 is increased, and the combination of the soft rubber sealing ring 31 and the hard rubber sealing ring 32 is firmer. Further, since the shape of the annular groove 20 is rectangular, when the soft rubber sealing ring 31 with a circular section is matched with the annular groove 20, the edges on two sides can be in interference fit with the wall surface of the annular groove 20, so that the sealing performance is good.
It should be noted that, the cross section of the hard rubber seal ring 32 needs to be consistent with the shape and the size of the notch of the annular groove 20, if the notch of the annular groove 20 is square, the cross section of the hard rubber seal ring 32 is square, and if the notch of the annular groove 20 is circular, the cross section of the hard rubber seal ring 32 is circular. Therefore, the hard rubber sealing ring and the annular groove can be well matched, and the installation is stable. However, the cross-sectional shape of the flexible rubber seal ring 31 is preferably circular, and the flexible rubber seal ring 31 with a circular cross-section can have the largest interference area with the wall surface of the annular groove 20 no matter what the shape of the notch of the annular groove 20 is, so that the optimal sealing effect is ensured. Further, the diameter of the soft rubber sealing ring 31 must be larger than the width of the notch of the annular groove 20, so as to realize the interference fit between the soft rubber sealing ring 31 and the wall surface of the annular groove 32, thereby realizing the sealing waterproof function of the waterproof sealing ring 3.
In this embodiment, the annular groove 20 includes a first accommodating space 201 and a second accommodating space 202, the first accommodating space 201 is used for accommodating the hard rubber sealing ring 32, the second accommodating space 202 is used for accommodating the soft rubber sealing ring 31, and the width of the second accommodating space 202 is larger than that of the first accommodating space 201.
The present embodiment divides the annular groove 20 into a first accommodating space 201 accommodating the hard rubber seal ring 32 and a second accommodating space 202 accommodating the soft rubber seal ring 31. Since the cross-sectional diameter of the soft rubber seal ring 31 is larger than the cross-sectional width of the hard rubber seal ring 32, the width of the second accommodation space 202 can be set slightly larger than the width of the first accommodation space 201 accordingly. Alternatively, in the case of meeting the interference fit requirement of the soft rubber seal ring 31, the width of the second accommodating space 202 may be equal to the width of the first accommodating space 201, so that the processing technology and steps may be simpler.
It should be noted that, the first accommodating space 201 and the second accommodating space 202 of the annular groove 20 are for distinguishing different positions of accommodating the hard rubber sealing ring 32 and the soft rubber sealing ring 31, and cannot describe that the structures of the first accommodating space 201 and the second accommodating space 202 are different. The first accommodating space 201 and the second accommodating space 202 may have the same structure to simplify the processing technology, and the first accommodating space 201 and the second accommodating space 202 may also have different structures to better match with different structures of the hard rubber sealing ring 32 and the soft rubber sealing ring 31 of the waterproof sealing ring 3.
Fig. 2 is a schematic structural diagram of a waterproof sealing ring according to an embodiment of the present invention, as shown in fig. 2, a positioning protrusion 33 is disposed on the hard rubber sealing ring 32, and a positioning groove matching with the positioning protrusion 20 is disposed at the bottom of the annular groove 20. Wherein the positioning grooves on the annular groove 20 are not shown in the figures. In this embodiment, the positioning convex part 33 is arranged on the hard rubber sealing ring 32, and the positioning groove is arranged at the bottom of the annular groove 20 and matched with the positioning convex part 33, so that the positioning function is added for the waterproof sealing ring 3 during assembly. The positioning structure is convenient for positioning the waterproof sealing ring 3 during assembly, can improve the assembly efficiency and the assembly accuracy, and reduces the waterproof defective rate caused by the assembly problem.
It should be noted that, the matching positioning structures are disposed at the bottoms of the hard rubber seal ring 32 and the annular groove 20, so as to facilitate assembly of the waterproof seal ring. Further, the specific features of the positioning structure are not limited, and on the premise of ensuring the rigidity and strength of the hard rubber sealing ring 32 and the first and second shells 1 and 2, the positioning structure may be that a positioning convex part 33 is arranged on the hard rubber sealing ring 32 and a positioning groove is arranged at the bottom of the annular groove 20; the positioning structure can also be that the positioning convex part 33 is arranged at the bottom of the annular groove 20, and meanwhile, the positioning groove is arranged on the hard rubber sealing ring 32, and only the matching of the positioning structures on the hard rubber sealing ring 32 and the annular groove 20 is required.
Fig. 3 is an exploded view of a waterproof structure according to an embodiment of the present invention, and as shown in fig. 3, two positioning protrusions 33 are disposed on each of two opposite long sides of a hard rubber seal ring 32. In this embodiment, two positioning protrusions 33 are disposed on each of two long sides of the hard rubber seal ring 32, so as to achieve the positioning purpose. Correspondingly, the second housing 2 is provided with positioning grooves which exactly match the number and positions of the positioning projections 33. It should be noted that the number and positions of the positioning protrusions 33 are not required, the positioning protrusions 33 may be disposed on two long sides of the hard rubber seal ring 32, or may be disposed on two short sides of the hard rubber seal ring 32, one or more positioning protrusions 33 may be disposed, and the positioning accuracy may be improved by disposing a plurality of positioning protrusions 33 on the premise that the strength and rigidity of the hard rubber seal ring 32 are not affected.
Further, in this embodiment, the positioning protrusion 33 is a positioning boss, the cross section of the positioning boss is rectangular, and the cross section width of the positioning boss is the same as the cross section width of the hard rubber seal ring 32. Specifically, the positioning protrusion 33 may be a positioning boss, a positioning post, or a positioning structure with other shape. In addition, the cross section of the positioning boss is the same as the width of the rectangular cross section of the hard rubber sealing ring 32, so that the processing technology can be simplified, and the processing cost can be saved.
In this embodiment, a limiting step 10 is further disposed outside the side wall of the first housing 1, and the outer side wall of the annular groove 20 abuts against the limiting step 10. Specifically, a limiting step 10 is arranged outside the side wall of the first casing 1, the outer side wall of the annular groove 20 on the second casing 2 abuts against the limiting step 10, and the limiting step 10 plays a role in limiting the assembly position of the first casing 1 and the second casing 2, is convenient to assemble, and can prevent relative displacement between the first casing 1 and the second casing 2.
It should be noted that, the limiting step 10 may be replaced by other limiting structures or clamping structures, and a more complex limiting structure or clamping structure is provided, so as to achieve better assembly effect and sealing effect.
In summary, according to the waterproof structure provided by the embodiment of the invention, the waterproof sealing ring is extruded by interference between the side wall of the first shell and the annular groove wall of the second shell, so that the waterproof sealing ring has a sealing and waterproof function. The hard rubber sealing ring plays a role in fixing and supporting the soft rubber sealing ring, and the soft rubber sealing ring has three parts in total and is in interference sealing with the shell, so that the waterproof effect is good. Further, the soft rubber sealing ring and the hard rubber sealing ring are combined together, so that the strength of the waterproof sealing ring is increased, the waterproof sealing ring is not easy to deform, and adverse phenomena such as stretching and twisting are not easy to occur in the assembly process. Meanwhile, the positioning structure is arranged on the hard rubber sealing ring and the annular groove, so that the assembly difficulty is reduced, and the waterproof defective rate after assembly is further reduced. The monomer stability of the waterproof sealing ring is enhanced, and the waterproof sealing ring is easier to package and transport. Moreover, the soft rubber sealing ring and the hard rubber sealing ring are integrally formed through double colors, the manufacturing process is simple, the soft rubber sealing ring and the hard rubber sealing ring are tightly combined after being formed, the soft rubber sealing ring and the hard rubber sealing ring are not easy to separate and fall off, the waterproof structure is still effective in multiple disassembly and assembly, and the service life of the waterproof structure is prolonged.
The embodiment of the invention also provides a mobile phone which comprises the waterproof structure.
Wherein, waterproof construction includes: the waterproof sealing device comprises a first shell 1, a second shell 2 and a waterproof sealing ring 3 arranged between the first shell 1 and the second shell 2, wherein the waterproof sealing ring 3 comprises a soft rubber sealing ring 31 and a hard rubber sealing ring 32, and the soft rubber sealing ring 31 and the hard rubber sealing ring 32 are integrally formed through an injection molding process.
The lateral wall tip of second casing 2 is provided with annular groove 20, and waterproof sealing circle 3 sets up in annular groove 20, and the lateral wall of first casing 1 sets up in annular groove 20 and butt waterproof sealing circle 3. The soft rubber sealing ring 31 is abutted against the first shell 1, and the hard rubber sealing ring 32 is abutted against the second shell 2. The cross section of the soft rubber sealing ring 31 is circular, the cross section of the hard rubber sealing ring 32 is rectangular, and the width of the rectangle is smaller than the diameter of the circle; the annular groove 20 includes a first accommodating space 201 and a second accommodating space 202, the first accommodating space 201 is used for accommodating the hard rubber sealing ring 32, the second accommodating space 202 is used for accommodating the soft rubber sealing ring 31, and the width of the second accommodating space 202 is larger than that of the first accommodating space 201. The hard rubber sealing ring 32 is provided with a positioning convex part 33, and the bottom of the annular groove 20 is provided with a positioning groove matched with the positioning convex part 33. Two positioning convex parts 33 are respectively arranged on two opposite long edges of the hard rubber sealing ring 32. The positioning convex part 33 is a positioning boss, and the section of the positioning boss is the same as the section width of the hard rubber sealing ring 32. The outside of the side wall of the first shell 1 is also provided with a limiting step 10, and the outer side wall of the annular groove 20 is abutted against the limiting step 10.
The first casing 1 is a front casing of the mobile phone, and the second casing 2 is a rear casing of the mobile phone.
According to the mobile phone provided by the embodiment of the invention, the waterproof sealing ring is extruded by the interference of the side wall of the front shell and the annular groove wall of the rear shell, so that the sealing waterproof effect is achieved. The hard rubber sealing ring plays a role in fixing and supporting the soft rubber sealing ring, and the soft rubber sealing ring has three parts for interference sealing with the shell, so that the waterproof effect is good. The soft rubber sealing ring and the hard rubber sealing ring are combined together, so that the strength of the waterproof sealing ring is increased, the waterproof sealing ring is not easy to deform, poor phenomena such as stretching and twisting are not easy to occur in the assembly process, and meanwhile, the positioning structure is arranged on the hard rubber sealing ring and the annular groove, so that the assembly difficulty is reduced, and the waterproof defective rate after assembly is reduced. The monomer stability of the waterproof sealing ring is enhanced, and the waterproof sealing ring is easier to package and transport. The soft rubber sealing ring and the hard rubber sealing ring are integrally formed through injection molding, the manufacturing process is simple, the soft rubber sealing ring and the hard rubber sealing ring are tightly combined after forming, are not easy to separate and fall off, and the waterproof structure is still effective in multiple disassembly and assembly, so that the service life of the waterproof structure is prolonged.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. A waterproof structure, characterized by comprising: the waterproof sealing ring comprises a soft rubber sealing ring and a hard rubber sealing ring, wherein the soft rubber sealing ring and the hard rubber sealing ring are integrally formed through a double-color injection molding process;
the end part of the side wall of the second shell is provided with an annular groove, the waterproof sealing ring is arranged in the annular groove, and the side wall of the first shell is arranged in the annular groove and is abutted against the waterproof sealing ring;
the soft rubber sealing ring is abutted against the first shell, and the hard rubber sealing ring is abutted against the second shell;
the cross section of the soft rubber sealing ring is circular, the cross section of the hard rubber sealing ring is rectangular, one side of the rectangular is concave arc, at least part of the circular shape is overlapped with the concave arc, and the width of the rectangular is smaller than the diameter of the circular shape.
2. The waterproof structure according to claim 1, wherein the annular groove includes a first accommodation space for accommodating the hard rubber seal ring and a second accommodation space for accommodating the soft rubber seal ring, and a width of the second accommodation space is larger than a width of the first accommodation space.
3. The waterproof structure according to claim 1, wherein a positioning protrusion is provided on the hard rubber sealing ring, and a positioning groove matching with the positioning protrusion is provided at the bottom of the annular groove.
4. A waterproof structure according to claim 3, wherein each of two opposite long sides of the hard rubber seal ring is provided with two of the positioning projections.
5. The waterproof structure according to claim 3, wherein the positioning convex portion is a positioning boss, the cross section of the positioning boss is rectangular, and the cross section width of the positioning boss is the same as the cross section width of the hard rubber sealing ring.
6. The waterproof structure according to claim 1, wherein a limiting step is further provided on the outside of the side wall of the first housing, and the outer side wall of the annular groove abuts against the limiting step.
7. A mobile phone comprising the waterproof structure according to any one of claims 1 to 6.
8. The handset of claim 7 wherein the first housing is a front housing and the second housing is a rear housing.
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| CN201710818142.2A CN107360294B (en) | 2017-09-12 | 2017-09-12 | Waterproof construction and cell-phone |
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| CN201710818142.2A CN107360294B (en) | 2017-09-12 | 2017-09-12 | Waterproof construction and cell-phone |
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| CN107360294B true CN107360294B (en) | 2023-09-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111271452A (en) * | 2018-12-05 | 2020-06-12 | 众鼎瑞展电子科技(深圳)有限公司 | Waterproof sealing ring |
| CN110196621A (en) * | 2019-05-31 | 2019-09-03 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN110312019B (en) * | 2019-07-15 | 2022-01-25 | Oppo（重庆）智能科技有限公司 | Camera assembly and electronic equipment |
| CN112492822B (en) * | 2019-09-11 | 2022-05-31 | 杭州海康微影传感科技有限公司 | Waterproof plug and electronic equipment |
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| JP5963295B2 (en) * | 2011-12-08 | 2016-08-03 | 日本メクトロン株式会社 | Waterproof lid member |
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