Electronic device
By installing sealing connectors and elastic seals on both sides of the adapter circuit board, combined with the inclined hole wall and dispensing gap design, the problem of sealing the adapter circuit board of folding screen electronic equipment is solved, and efficient waterproof performance is achieved, suitable for underwater use.
Patent Information
- Application Number
- CN202421712584.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-07-18
AI Technical Summary
Due to size limitations, the perforation position of the adapter circuit board of the folding screen electronic equipment cannot be effectively sealed through dispensing, which affects the waterproofing effect of the whole machine.
Seal connectors and elastic seals are assembled on both sides of the adapter circuit board to form a seal with the inner wall of the middle frame opening, combining the inclined hole wall design and dispensing gap filling to improve the sealing effect.
The sealing process is simplified, the sealing reliability and waterproof performance are improved, and the IPX8 waterproof level is achieved, suitable for underwater activities.
Smart Images
Figure CN223246813U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of electronic technology, and in particular to electronic equipment. Background Art
[0002] The development trend of foldable screen electronic devices is to reduce thickness, reduce weight and increase portability. The volume of key components is also compressed to a level that breaks through traditional structures and conventional sizes, affecting the performance of components and the waterproof effect of the entire machine.
[0003] The transfer circuit board in foldable electronic devices is used to transmit signals and power between the two sides of the device. The midframe requires a through-hole to connect the transfer circuit board to the electrical components on both sides of the hinge mechanism. However, due to size limitations, the perforation location cannot achieve the desired sealing effect through adhesive dispensing. Utility Model Content
[0004] The present disclosure provides an electronic device to solve related technical problems.
[0005] An embodiment of the present disclosure provides an electronic device, comprising a hinge mechanism, a transfer circuit board, a sealing assembly, and a pair of middle frames respectively connected to the hinge mechanism;
[0006] The middle frame is provided with a first opening; the hinge mechanism includes a through space communicating with the first openings of a pair of the middle frames, and the adapter circuit board extends from the first opening of one middle frame through the through space to the first opening of the other middle frame;
[0007] The sealing assembly includes a sealing connector located on one side of the adapter circuit board and an elastic sealing member located on the other side of the adapter circuit board; one side of the adapter circuit board is fixedly assembled to the inner wall of the first opening through the sealing connector, and the elastic sealing member abuts and seals against the other side of the adapter circuit board.
[0008] Optionally, the inner wall of the first opening includes a hole wall arranged obliquely relative to the thickness direction of the electronic device, so that the transfer circuit board passing through the first opening is inclined relative to the thickness direction in the first opening.
[0009] Optionally, the inclination angle of the hole wall relative to the thickness direction is greater than or equal to 45° and less than or equal to 60°.
[0010] Optionally, the sealing connector includes waterproof glue; the waterproof glue is respectively bonded and fixed to the adapter circuit board and the inner wall of the first opening.
[0011] Optionally, the adapter circuit board includes a circuit board body and a reinforcement plate arranged on the circuit board body, and the waterproof glue is bonded and fixed to the reinforcement plate.
[0012] Optionally, the elastic sealing component includes waterproof foam, a first side surface of the waterproof foam is fixed to an inner wall of the first opening, and a second side surface of the waterproof foam elastically abuts against the adapter circuit board.
[0013] Optionally, the middle frame includes a structural body and a cover plate, the structural body is provided with a second opening; the cover plate is assembled in the second opening, and together with a first side wall of the second opening, forms the first opening;
[0014] The edge of the second opening includes a first section overlapping with the first opening and a second section extending from one end of the first section to the other end of the first section. A dispensing gap is formed between the second section and the cover plate, and the dispensing gap is filled with colloid.
[0015] Optionally, the first side wall is tilted relative to the thickness direction of the electronic device, the cover plate includes a second side wall arranged toward the first side wall, and the second side wall is parallel to the first side wall; the elastic sealing member is fixed to the second side wall.
[0016] Optionally, the second section includes a stepped structure, and the cover plate includes a first portion overlapping a recess formed by the stepped structure; the first portion and the recess form the dispensing gap.
[0017] Optionally, the middle frame further includes an accommodating space communicating with the first opening, and the accommodating space is provided with electrical components; the adapter circuit board is conductively connected to the electrical components.
[0018] The technical solution provided by the present disclosure can achieve at least the following beneficial effects:
[0019] One side of the adapter circuit board disclosed herein is fixedly assembled to the inner wall of the first opening by a sealing connector, and the elastic seal is abutted and sealed against the other side of the adapter circuit board. The sealing connector and the elastic seal are assembled on both sides of the adapter circuit board to form a seal between the adapter circuit board and the inner wall of the first opening, thereby simplifying the sealing process and improving the sealing effect.
[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.
[0022] Figure 1 is a schematic diagram of a three-dimensional structure of an electronic device in an exemplary embodiment of the present disclosure;
[0023] Figure 2 is a schematic cross-sectional structural diagram of an electronic device in an exemplary embodiment of the present disclosure;
[0024] Figure 3 is a schematic diagram of a partial cross-sectional structure of an electronic device in an exemplary embodiment of the present disclosure;
[0025] Figure 4 It is a schematic diagram of a partial structure of an electronic device in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION
[0026] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of this specification, as detailed in the appended claims.
[0027] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. Unless otherwise defined, technical or scientific terms used in this specification should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and similar terms used in this specification and the claims do not denote any order, quantity, or importance, but are simply used to distinguish one component from another. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather indicate the presence of one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper" are used for convenience only and are not intended to limit the scope of the disclosure to a specific location or spatial orientation. Terms such as "include" or "comprising" mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.
[0028] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. As used in this specification and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0029] The development trend of foldable screen electronic devices is to reduce thickness, reduce weight and increase portability. The volume of key components has also been compressed to a level that breaks through traditional structures and conventional sizes, affecting the performance of components and the waterproof effect of the entire device. The transfer circuit board of foldable screen electronic devices can be used to realize functions such as signal transmission and power transmission on both sides of the fuselage. The transfer circuit board can be an FPC (Flexible Printed Circuit). The middle frame needs to have through holes to facilitate the transfer circuit board to connect the electrical components on both sides of the hinge mechanism through the hinge mechanism. However, due to size limitations, the perforation position can no longer achieve the expected sealing effect by dispensing glue for waterproofing.
[0030] The present disclosure provides an electronic device, Figure 1 is a schematic diagram of a three-dimensional structure of an electronic device in an exemplary embodiment of the present disclosure, Figure 2 is a schematic cross-sectional view of an electronic device in an exemplary embodiment of the present disclosure. Figure 1 、 Figure 2 As shown, Figure 2 The dashed arrow in the middle represents the thickness direction of the electronic device 1. The electronic device 1 includes a hinge mechanism 12, a transfer circuit board 13, a sealing assembly 14, and a pair of middle frames 11 respectively connected to the hinge mechanism 12. The middle frames 11 are provided with first openings 113. The hinge mechanism 12 includes a through space 121 that communicates with the first openings 113 of the pair of middle frames 11. The transfer circuit board 13 extends from the first opening 113 of one middle frame 11 through the through space 121 to the first opening 113 of the other middle frame 11. The sealing assembly 14 includes a sealing connector 141 located on one side of the transfer circuit board 13 and an elastic sealing member 142 located on the other side of the transfer circuit board 13. One side of the transfer circuit board 13 is fixedly assembled to the inner wall of the first opening 113 via the sealing connector 141, and the elastic sealing member 142 is sealed against the other side of the transfer circuit board 13.
[0031] Because one side of the transfer circuit board 13 is fixedly assembled to the inner wall of the first opening 113 via a sealing connector 141, and the elastic seal 142 abuts and seals against the other side of the transfer circuit board 13, the sealing connector 141 and the elastic seal 142 are assembled on both sides of the transfer circuit board 13 to form a seal with the inner wall of the first opening 113, simplifying the sealing process and improving the sealing effect. The sealing method of assembling the sealing connector 141 and the elastic seal 142 reduces the requirements for the sealing operation space, avoids the size of the electronic device 1 being limited by sealing processes such as dispensing, and helps to achieve the lightweight performance of the electronic device 1.
[0032] In some embodiments, as Figure 3As shown, the inner wall of the first opening 113 includes a hole wall arranged at an angle relative to the thickness direction of the electronic device 1, so that the adapter circuit board 13 passing through the first opening 113 is tilted relative to the thickness direction within the first opening 113. By having the hole wall and the adapter circuit board 13 arranged at an angle relative to the thickness direction of the electronic device 1, the mating area between the adapter circuit board 13 and the hole wall is increased, thereby helping to improve sealing reliability.
[0033] The inclination angle of the hole wall relative to the thickness direction can be greater than or equal to 45° and less than or equal to 60°, so as to avoid occupying too much space in the width direction of the electronic device 1 and affecting the layout of other parts. Alternatively, in other embodiments, the inclination angle of the hole wall relative to the thickness direction can also be other values while satisfying the spatial layout, and this disclosure is not limited to this.
[0034] In some embodiments, the sealing connector 141 may be a waterproof adhesive that is bonded to the adapter circuit board 13 and the inner wall of the first opening 113. The waterproof adhesive secures the adapter circuit board 13 to the inner wall of the first opening 113, creating a seal on the side of the adapter circuit board 13 where the waterproof adhesive is applied. The thickness of the waterproof adhesive can be in the range of 0.1 mm to 0.3 mm, for example, 0.2 mm.
[0035] In the above embodiment, the transfer circuit board 13 includes a circuit board body 131 and a reinforcement plate 132 disposed on the circuit board body 131. The waterproof adhesive is bonded to the reinforcement plate 132. The reinforcement plate 132 serves to increase the rigidity of the circuit board body 131 and also assists in positioning the transfer circuit board 13. The bonding of the reinforcement plate 132 with the waterproof adhesive improves the connection reliability of the transfer circuit board 13. The reinforcement plate 132 may be a steel plate, and the waterproof adhesive may be a hot melt adhesive.
[0036] In some embodiments, the elastic sealing member 142 may be a waterproof foam. A first side of the waterproof foam is fixed to the inner wall of the first opening 113, and a second side of the waterproof foam elastically abuts against the adapter circuit board 13. The elastic abutment force generated by the compression of the waterproof foam fills the gap between the other side of the adapter circuit board 13 and the inner wall of the first opening 113, thereby improving the sealing and waterproof performance. The waterproof foam can be compressed to 50% to ensure that there is no gap between the adapter circuit board 13 and the first opening 113, thereby improving the waterproof performance.
[0037] In some embodiments, as Figure 3 、 Figure 4As shown, the middle frame 11 includes a structural body 111 and a cover plate 112, and the structural body 111 is provided with a second opening 116. The cover plate 112 is assembled in the second opening 116, and together with the first side wall 1163 of the second opening 116, forms the first opening 113. The edge of the second opening 116 includes a first section 1161 that coincides with the first opening 113 and a second section 1162 that extends from one end of the first section 1161 to the other end of the first section 1161. A dispensing gap is formed between the second section 1162 and the cover plate 112, and the dispensing gap is filled with colloid. When the cover plate 112 is assembled to the second opening 116 of the structural body 111, the elastic seal 142 can be brought into contact with the adapter circuit board 13 as the cover plate 112 is assembled, thereby simplifying the sealing process. A glue gap is formed between the edge of cover plate 112 and second opening 116. Glue is then applied to seal the connection from one end of transfer circuit board 13 around cover plate 112 to the other end, completely filling the gap between cover plate 112 and middle frame 11 and further improving sealing reliability. The glue gap can have a width of 0.3 mm and a depth of 0.5 mm to ensure a reliable glue application.
[0038] The combination of the sealing connector 141, the elastic sealing member 142, and the adhesive seal achieves IPX8 waterproofing. The IPX8 waterproof rating indicates that, under specific test conditions, a product can withstand water exposure at depths of 1.5 to 30 meters for 30 consecutive minutes without leaking or affecting performance. The IPX8 waterproof rating is currently the highest standard for waterproofing, making the electronic device 1 suitable for various underwater activities, such as swimming, diving, and snorkeling.
[0039] In the above embodiment, the first side wall 1163 can be arranged at an angle relative to the thickness direction of the electronic device 1. The cover plate 112 includes a second side wall 1122 arranged toward the first side wall 1163. The second side wall 1122 is parallel to the first side wall 1163. The elastic seal 142 is fixed to the second side wall 1122. Because the elastic seal 142 is fixed to the second side wall 1122 of the cover plate 112, the first side wall 1163 and the second side wall 1122 are arranged in parallel. When the cover plate 112 is assembled with the structural body 111, the elastic seal 142 can directly form a seal with the adapter circuit board 13.
[0040] The second section 1162 may include a stepped structure, and the cover plate 112 includes a first portion 1121 that overlaps within the recess 115 formed by the stepped structure. The first portion 1121 and the recess 115 define a dispensing gap. The overlap of the first portion 1121 of the cover plate 112 within the recess 115 formed by the stepped structure allows for positioning and assembly of the cover plate 112 while ensuring reliable installation of the cover plate 112. The cover plate 112 may have an extension 1123 protruding from the first opening 113 on at least one end in the width direction of the transfer circuit board 13. The extension 1123 may have an assembly hole. The cover plate 112 may be fastened to the structural body 111 via screws or other threaded connectors to be fixed within the recess 115.
[0041] In some embodiments, the middle frame 11 may further include a storage space 114 connected to the first opening 113. The storage space 114 is provided with electrical components, and the adapter circuit board 13 is conductively connected to the electrical components. The adapter circuit board 13 is conductively connected to the electrical components in the middle frame 11 on both sides of the hinge mechanism 12, respectively, to achieve associated control of the electrical components on both sides. Since the hinge is movable and cannot be waterproof, the sealing connector 141 and the elastic seal 142 are assembled on both sides of the adapter circuit board 13 to form a seal with the inner wall of the first opening 113, thereby preventing liquid from entering the storage space 114 of the middle frame 11, ensuring the waterproof performance of the electrical components in the middle frames 11 on both sides during use.
[0042] For example, the above-mentioned electrical components can be a screen, a sensor module, a mainboard, a battery, etc., and the present disclosure is not limited to this.
[0043] It should be noted that the electronic device 1 can be a mobile phone, a tablet computer, a wearable device, a vehicle-mounted terminal, a medical terminal, etc.
[0044] The above description is merely a preferred embodiment of the present disclosure and does not constitute any form of limitation to the present disclosure. Although the present disclosure has been disclosed as a preferred embodiment as above, it is not intended to limit the present disclosure. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present disclosure. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.
Claims
1. An electronic device, characterized in that: It includes a hinge mechanism, a transfer circuit board, a sealing assembly, and a pair of middle frames respectively connected to the hinge mechanism; The middle frame is provided with a first opening; the hinge mechanism includes a through space communicating with the first openings of a pair of the middle frames, and the adapter circuit board extends from the first opening of one middle frame through the through space to the first opening of the other middle frame; The sealing assembly includes a sealing connector located on one side of the adapter circuit board and an elastic sealing member located on the other side of the adapter circuit board; one side of the adapter circuit board is fixedly assembled to the inner wall of the first opening through the sealing connector, and the elastic sealing member abuts and seals against the other side of the adapter circuit board.
2. The electronic device according to claim 1, wherein The inner wall of the first opening includes a hole wall arranged obliquely relative to the thickness direction of the electronic device, so that the transfer circuit board passing through the first opening is inclined relative to the thickness direction in the first opening.
3. The electronic device according to claim 2, wherein: The inclination angle of the hole wall relative to the thickness direction is greater than or equal to 45° and less than or equal to 60°.
4. The electronic device according to claim 1, wherein: The sealing connector includes waterproof glue; the waterproof glue is respectively bonded and fixed to the adapter circuit board and the inner wall of the first opening.
5. The electronic device according to claim 4, characterized in that The transfer circuit board includes a circuit board body and a reinforcement plate arranged on the circuit board body, and the waterproof glue is bonded and fixed to the reinforcement plate.
6. The electronic device according to claim 1, wherein: The elastic sealing component includes waterproof foam, a first side surface of the waterproof foam is fixed to the inner wall of the first opening, and a second side surface of the waterproof foam is elastically in contact with the transfer circuit board.
7. The electronic device according to claim 1, wherein: The middle frame includes a structural body and a cover plate, wherein the structural body is provided with a second opening; the cover plate is assembled in the second opening and forms the first opening together with the first side wall of the second opening; The edge of the second opening includes a first section overlapping with the first opening and a second section extending from one end of the first section to the other end of the first section. A dispensing gap is formed between the second section and the cover plate, and the dispensing gap is filled with colloid.
8. The electronic device according to claim 7, wherein: The first side wall is tilted relative to the thickness direction of the electronic device. The cover includes a second side wall arranged toward the first side wall, and the second side wall is parallel to the first side wall. The elastic sealing member is fixed to the second side wall.
9. The electronic device according to claim 7, wherein: The second section includes a stepped structure, and the cover plate includes a first portion overlapped in a recess formed by the stepped structure; the first portion and the recess enclose the dispensing gap.
10. The electronic device according to claim 1, wherein The middle frame further includes a receiving space communicated with the first opening, wherein the receiving space is provided with electrical components; the adapter circuit board is conductively connected to the electrical components.