Electronic equipment protective shell key

Abstract

An electronic equipment protective shell key comprises a key frame which is combined with a frame of an electronic equipment protective shell. The conductive silica gel support is combined with the key frame, the conductive silica gel support is located on the inner side of the frame of the electronic equipment protection shell, and the key frame is sealed by the conductive silica gel support; and the PCB touch key is pressed on the conductive silica gel support in a mold pressing manner. According to the utility model, the conductive silica gel is creatively adopted as a raw material, and the conductive silica gel is conductive, so that the conductive silica gel support tightly combined with the PCB touch key can be formed only by pressing the PCB touch key on the conductive silica gel sheet in a mold pressing manner; compared with the prior art, the support does not need to be in an annular shape and can completely wrap the bottom of the PCB touch key, so that the mode is not limited by an injection molding process any more, a composite structure combining the PCB touch key and the support can be formed through a simple mold pressing process, the production efficiency of a single protective shell key is improved, and the production cost is reduced. And meanwhile, the production cost of a single protective shell key is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch control technical field especially relates to a kind of electronic equipment protective housing button. BACKGROUND

[0002] With the development of electronic products, to increase the operation convenience and interest of electronic equipment, gradually appeared side touch button, such as some mobile phones are set in the side of mobile phone a side touch button, user can call out corresponding function by touching the side touch button, such as taking a picture or video recording etc.;At the same time, user can control corresponding operation by sliding finger on side touch button, such as adjusting the focus of taking a picture or setting sensitivity etc.

[0003] The corresponding position on the protective shell of the current electronic product is also provided with corresponding button and side touch button electrically connected, to ensure the shell operation of the electronic product. The button on the protective shell in the prior art usually includes PCB touch key and support for supporting the PCB touch key, in the prior art, to ensure the close combination of PCB touch key and support, usually injection molding process is adopted, PCB touch key is placed in mold, then liquid rubber is added to mold, to form support wrapped at the bottom of PCB button. This kind of production mode is more complicated in production process due to the existence of injection molding process, and the production cost is higher. How to effectively reduce the production cost of side touch button is a technical problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of electronic equipment protective housing button, one aspect simplifies the production process of protective housing button, another aspect takes into account the manufacturing cost of protective housing button.

[0005] The utility model provides a kind of electronic equipment protective housing button, comprising:

[0006] Key frame, the key frame is combined in the frame of electronic equipment protective housing;

[0007] Conductive silica gel support, the conductive silica gel support is combined in key frame, the conductive silica gel support is located in the frame of electronic equipment protective housing inner side, the conductive silica gel support encloses the key frame;

[0008] PCB touch key, the PCB touch key is molded in the conductive silica gel support.

[0009] Further, it further includes ground glass film, and the ground glass film is adhered to the outer surface of the PCB touch key by conductive glue.

[0010] Further, the conductive silica gel support includes a support surface bonded with the key frame and a support key groove formed in the middle of the support surface, and an elastic arch surface is arranged between the support surface and the support key groove.

[0011] Further, the elastic arch surface is in the shape of an upward arch.

[0012] Further, the elastic arch surface seals the area between the support key groove and the support surface.

[0013] Further, the inner side of the support key groove is coated with conductive glue.

[0014] Further, the conductive silica gel support is integrally formed.

[0015] Further, the PCB touch key includes a base body and a plurality of independent conductive units arranged on the base body, and the conductive units penetrate the base body, so that the electric signal can be transmitted from one side of the base body to the other side.

[0016] Further, the plurality of independent conductive units are arranged longitudinally.

[0017] Further, the key frame is an aluminum alloy frame.

[0018] The technical effect of the technical solution is that conductive silica gel is creatively used as a raw material. Since the conductive silica gel itself can conduct electricity, the PCB touch key can be formed by molding on the conductive silica gel sheet to form a conductive silica gel support that is tightly combined with the PCB touch key. Compared with the prior art, the support does not need to be annular and can completely wrap the bottom of the PCB touch key. In this way, it is no longer limited by the injection molding process, and a composite structure of the PCB touch key and the support can be formed by a simple molding process, improving the production efficiency of the single protective shell key and reducing the production cost of the single protective shell key. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced as follows. The drawings in the following description are only for some embodiments, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Fig. 1 The assembly structure schematic diagram of the electronic device protective shell key in the embodiment of the present application is shown;

[0021] Fig. 2 The explosion structure schematic diagram of the electronic device protective shell key in the embodiment of the present application is shown;

[0022] Fig. 3 Fig. 1 shows a schematic diagram of a PCB touch key in a protective case for an electronic device according to an embodiment of the present application;

[0023] Fig. 4 Fig. 2 shows a schematic diagram of a conductive silicone support in a protective case for an electronic device according to an embodiment of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS: 1 - frosted glass film; 2 - conductive glue; 3 - PCB touch key; 31 - conductive unit; 32 - base; 4 - key frame; 5 - conductive silicone support; 51 - support surface; 52 - elastic arch surface; 53 - support key groove. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "on" second feature include that first feature is directly above and obliquely above second feature, or only indicate that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature include that first feature is directly below and obliquely below second feature, or only indicate that first feature horizontal height is less than second feature.

[0029] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the range disclosed by the utility model.

[0030] In the subsequent description, suffixes such as "module", "component", "assembly" or "unit" are used only for the convenience of the description of the utility model, and do not have a specific meaning. Therefore, they can be mixedly used.

[0031] The utility model will be further described in detail through specific implementation manners combined with drawings.

[0032] According to one embodiment of the utility model, as Figs. 1 to 4 An electronic device protective shell key comprises:

[0033] In the embodiment, the shape of the key frame 4 is matched with the frame of the electronic device protective shell, and is combined on the frame of the electronic device protective shell in a closely fitted manner. For example, for the electronic device protective shell with a rectangular frame, the key frame 4 is also designed as a corresponding rectangular shape, and a clamping structure is arranged on the edge of the key frame 4, which is matched with a clamping groove on the frame of the protective shell, so that the key frame 4 and the frame of the protective shell can be quickly and firmly installed. In the actual installation process, the key frame 4 is aligned with the corresponding position on the frame of the protective shell, and is pressed gently, so that the clamping structure is embedded in the clamping groove, and the installation of the key frame 4 is completed.

[0034] The conductive silica gel support 5 is a key component for realizing good electrical connection and touch sensing. The conductive silica gel support 5 is integrally formed by a conductive silica gel material, which has good conductivity and elasticity. The conductive silica gel support 5 is combined with the key frame 4 and located inside the frame of the electronic device protective case. In this embodiment, the shape of the conductive silica gel support 5 matches the internal contour of the key frame 4, which can completely enclose the key frame 4 and play a good dustproof and waterproof role. The conductive silica gel support 5 is fixed on the key frame 4 by bonding, specifically, a layer of special conductive glue is applied to the inside edge of the key frame 4, then the conductive silica gel support 5 is accurately placed on the key frame 4, and appropriate pressure is applied to make the conductive silica gel support 5 and the key frame 4 tightly bonded together. The conductive silica gel support 5 includes a support surface 51 bonded with the key frame 4 and a support key groove 53 formed in the middle of the support surface 51, and an elastic arch surface 52 is arranged between the support surface 51 and the support key groove 53. The elastic arch surface 52 is in the shape of an upward arch.

[0035] The PCB touch key 3 is a core component for realizing touch operation function. The PCB touch key 3 is fixed on the conductive silica gel support 5 by molding process. In the molding process, the pre-made conductive silica gel sheet is first placed in the mold, then the made PCB touch key 3 is placed on the conductive silica gel sheet, and molding is performed, so that the PCB touch key 3 is firmly molded on the conductive silica gel support 5. In this embodiment, the circuit design of the PCB touch key 3 adopts advanced touch sensing technology, which can accurately sense the touch operation of the user and transmit the corresponding signal to the electronic device. For example, when the user's finger touches the PCB touch key 3, the sensing electrode on the PCB touch key 3 can detect the change of capacitance, and then convert the touch signal into an electrical signal and transmit it to the control system of the electronic device through the conductive silica gel support 5, to realize the corresponding function operation, such as taking pictures, adjusting volume, etc. The PCB touch key 3 includes a substrate 32 and a plurality of independent conductive units 31 arranged on the substrate 32, and the conductive units 31 penetrate the substrate 32, so that the electrical signal can be transmitted from one side of the substrate 32 to the other side. The plurality of independent conductive units 31 are arranged in a longitudinal direction.

[0036] Further, the electronic device protective shell key further comprises a frosted glass film 1, which is adhered to the outer surface of the PCB touch key 3 by conductive adhesive 2. The frosted glass film 1 itself has good light transmittance and certain hardness. When the user touches the key, the finger contacts the frosted glass film 1, and due to the fine concave-convex structure on the surface of the frosted glass film 1, the friction between the finger and the film is increased, making the touch operation more stable and accurate. At the same time, through the conductive adhesive 2, the frosted glass film 1 can realize good electrical connection with the PCB touch key 3. The conductive particles in the conductive adhesive 2 can form a conductive path between the frosted glass film 1 and the PCB touch key 3, ensuring that the touch signal generated when the user touches the frosted glass film 1 can be smoothly transmitted to the sensing electrode of the PCB touch key 3, and then transmitted to the electronic device control system, realizing functional operation.

[0037] The elastic arch surface 52 as a key elastic component in the conductive silicone support 5 structure plays an important role when the user touches the PCB touch key 3. When the user touches the key, the force is transmitted to the support key groove 53 through the PCB touch key 3, the support key groove 53 is pressed under force, and then the elastic arch surface 52 is deformed. Because the elastic arch surface 52 is in the shape of an upward arch, it has elastic restoring force. After deformation under force, the elastic arch surface 52 will generate a reverse elastic force to push the support key groove 53 back to its original position, driving the PCB touch key 3 back to its original position. This elastic recovery mechanism not only provides tactile feedback during touch operation, allowing the user to clearly perceive the completion of key operation, but also ensures that the key can be accurately reset after each touch operation, ensuring the accuracy and stability of subsequent operations. At the same time, the conductivity of the conductive silicone material itself allows the signal to be continuously and stably transmitted from the PCB touch key 3 to the electronic device through the conductive silicone support 5 during the entire key operation process.

[0038] The conductive silicone support 5 is integrally formed by conductive silicone. The support surface 51 is a planar structure, and the edge thereof is tightly bonded to the key frame 4 by special conductive glue, so as to ensure that the support surface 51 will not be displaced during use of the key, maintain the stability of the structure, and ensure good electrical connection. The support key groove 53 is located in the middle of the support surface 51 and has a barrel-shaped structure, the inner diameter of which is adapted to the outer diameter of the PCB touch key 3, so as to provide stable support for the PCB touch key 3. The elastic arch surface 52 is connected between the support surface 51 and the support key groove 53 and has an upward arch shape. The curvature of the elastic arch surface 52 is accurately calculated according to the elastic recovery force and the touch feeling required by the key, and the curvature range is generally between 120° and 150°. Such curvature can ensure that the elastic arch surface 52 has sufficient elasticity and can be obviously deformed when subjected to a small external force, thereby providing sensitive touch feedback, and can also ensure that the elastic arch surface 52 will not lose elasticity due to excessive deformation during long-term use.

[0039] The elastic recovery characteristics of the elastic arch surface 52 provide clear and explicit touch feedback for the user. When the user touches the key, the user can feel obvious pressing and rebounding actions, which enhances the interaction experience between the user and the electronic device and makes the operation more intuitive and natural. For example, when taking a photo, the user can clearly judge whether the photo instruction has been successfully sent by the touch feeling of the key, thereby avoiding misoperation.

[0040] The presence of the elastic arch surface 52 enables the PCB touch key 3 to be accurately and quickly reset after each touch operation. This is particularly important for functions that require continuous and rapid operation, such as rapid volume adjustment, continuous photographing, etc. The key can be returned to the initial position after each operation, thereby preparing for the next operation and greatly improving the efficiency and reliability of the key operation.

[0041] The tight bonding of the support surface 51 to the key frame 4 and the structural design of the elastic arch surface 52 and the support key groove 53 together enhance the structural stability of the conductive silicone support 5 as a whole. During daily use of the electronic device, the electronic device may be subjected to various external forces, such as vibration and impact. Such a stable structure can effectively resist these external forces and prevent the PCB touch key 3 from being displaced or damaged due to the external forces, thereby ensuring that the key can always work normally and prolonging the service life of the key.

[0042] Further, in the embodiment, the elastic arch surface 52 seals the area between the support key groove 53 and the support surface 51; the inner side of the support key groove 53 is coated with conductive glue 2; and the conductive silicone support 5 is integrally formed.

[0043] The elastic arch surface 52 seals the area between the key groove 53 and the supporting surface 51, forming a relatively closed space structure. During the use of the electronic device, dust, water vapor and other impurities in the external environment are difficult to enter this closed area, thereby protecting the PCB touch key 3 and the related conductive connection parts inside. Since the key may be used in various complex environments, this sealing structure effectively prevents impurities from interfering with the electrical performance of the key. For example, in a humid environment, water vapor cannot enter between the key groove 53 and the supporting surface 51, preventing the conductive parts from short-circuiting due to moisture, and ensuring that the signal can be stably transmitted from the PCB touch key 3 to the electronic device through the conductive silicone supporting 5.

[0044] The inside of the key groove 53 is coated with conductive glue 2, further enhancing the conductivity of the conductive silicone supporting 5. When the user touches the PCB touch key 3, the generated electrical signal is first transmitted through the contact part of the PCB touch key 3 and the key groove 53, at which time the conductive glue 2 inside the key groove 53 can provide a more efficient conductive path to quickly and stably conduct the signal to the entire conductive silicone supporting 5, and then transmitted to the electronic device through the conductivity of the conductive silicone material itself. This double-conductive design (the conductive silicone itself and the conductive glue 2 inside the key groove 53) greatly enhances the reliability of signal transmission and reduces the possibility of signal attenuation and interference.

[0045] The conductive silicone supporting 5 is integrally formed to ensure the integrity and stability of the entire structure. During the molding process, the elastic arch surface 52, the key groove 53 and the supporting surface 51 are molded at one time, and there are no splicing gaps between the parts, avoiding the weak points that may occur due to splicing. This allows the entire conductive silicone supporting 5 to bear force in coordination when the key is subjected to external force, effectively dispersing the pressure and preventing damage caused by uneven local stress. At the same time, the integrally formed process also helps to maintain the durability of the sealing performance, as there are no splicing gaps, and there is no problem of sealing failure due to the expansion of the gap.

[0046] Further, the key frame 4 is an aluminum alloy frame. Aluminum alloy has a high strength-to-weight ratio, which makes the key frame 4 relatively light in weight while ensuring sufficient strength. During the daily use of the electronic device, the key frame 4 needs to withstand the touch operation from the user and possible external force impact.

[0047] In the description, references to "one embodiment", "some embodiments", "one example", "a specific example", or "some examples" are not necessarily to the same embodiment or example, and such references mean at least one. In the description, illustrative statements of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An electronic device protective case key, characterized by, The application relates to a key frame, a conductive silica gel support, a PCB touch key and a frosted glass film. The key frame is combined with the frame of an electronic device protective case. The conductive silica gel support is combined with the key frame and is located inside the frame of the electronic device protective case. The conductive silica gel support seals the area between the support key groove and the support surface.

2. The electronic device protective case key of claim 1, wherein, The inside of the support key groove is coated with conductive glue.

3. The electronic device protective case key of claim 1, wherein, The conductive silica gel support is integrally formed.

4. The electronic device protective case key of claim 3, wherein, The PCB touch key comprises a base body and a plurality of independent conductive units arranged on the base body.

5. The electronic device protective case key of claim 4, wherein, The conductive units penetrate the base body and enable the transmission of electric signals from one side of the base body to the other side.

6. The electronic device protective case key of claim 3, wherein, The plurality of independent conductive units are arranged longitudinally.

7. The electronic device protective case key of claim 3, wherein, The key frame is an aluminum alloy frame.

8. The electronic device protective case key of claim 1, wherein, ​ 9. The electronic device protective case key of claim 8, wherein, ​ 10. The electronic device protective case key of claim 1, wherein, ​

Images