Middle frame assembly of electronic device and electronic device
By designing movable heat dissipation components in the frame assembly of the electronic device, the problems of arching and cracking of the flexible screen when folding are solved, and the heat dissipation effect is improved and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202011216182.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-11-04
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-11-04
AI Technical Summary
The flexible screen of electronic devices is prone to cracking when folded, affecting service life, and uneven heat dissipation effect, resulting in heat concentration.
A middle frame assembly is designed, including a rotating shaft between the connected first frame and the second frame, and is equipped with a heat dissipation assembly, which consists of a heat dissipation plate, a first heat transfer plate and a second heat transfer plate, and the first transmission The hot plate is fixed on the first frame body, the second heat transfer plate is movable on the second frame body, and the heat dissipation plate is gradually folded between the first frame body and the second frame body when switching from the unfolded state to the folded state to avoid Flexible screen arches and improves heat dissipation.
Effectively avoiding the flexible screen arches during folding, solving the cracking problem, improving the heat dissipation effect of electronic equipment, making the heat conduction and heat dissipation more evenly, and extending the service life of the equipment.
Smart Images
Figure CN114449793B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic devices, and in particular to a middle frame assembly of an electronic device and the electronic device. Background Art
[0002] In the related art, the flexible screen of an electronic device is prone to arching and cracking when folded, which affects the service life of the electronic device. Summary of the invention
[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to propose a middle frame assembly of an electronic device, which can effectively solve the problem of cracking of the flexible screen, improve the heat dissipation effect of the electronic device, and help extend the service life of the electronic device.
[0004] The present application also proposes an electronic device, comprising the above-mentioned middle frame assembly.
[0005] According to an embodiment of the present application, a middle frame assembly of an electronic device includes: a middle frame body, the middle frame body includes a first frame body and a second frame body connected to each other, a rotating shaft is provided between the first frame body and the second frame body, and the first frame body and the second frame body can rotate around the rotating shaft to switch between an unfolded state and a folded state; a heat dissipation assembly, the heat dissipation assembly includes a heat dissipation plate, a first heat transfer plate and a second heat transfer plate, the first heat transfer plate and the second heat transfer plate are arranged at intervals, the first heat transfer plate is fixed on the first frame body, the second heat transfer plate is arranged on the second frame body and can move between a first position and a second position relative to the second frame body, the second position is located between the first heat transfer plate and the first position, the heat dissipation plate is located on a side of the first heat transfer plate and the second heat transfer plate away from the middle frame body and is respectively connected to the first heat transfer plate and the second heat transfer plate; when the middle frame body switches from the unfolded state to the folded state, the heat dissipation plate is gradually folded between the first frame body and the second frame body.
[0006] According to the middle frame assembly of the electronic device of the embodiment of the present application, the heat dissipation assembly includes a heat dissipation plate, a first heat transfer plate and a second heat transfer plate, the first heat transfer plate and the second heat transfer plate are arranged at intervals, the first heat transfer plate is fixed on the first frame body, the second heat transfer plate is arranged on the second frame body and can move between a first position and a second position relative to the second frame body, the second position is located between the first heat transfer plate and the first position, the heat dissipation plate is located on the side of the first heat transfer plate and the second heat transfer plate away from the middle frame body and is respectively connected to the first heat transfer plate and the second heat transfer plate, when the middle frame body switches from the unfolded state to the folded state, the heat dissipation plate gradually folds between the first frame body and the second frame body. Thus, not only can the flexible screen be effectively prevented from bulging during the folding process, and the problem of the flexible screen cracking is effectively solved, but also the heat dissipation effect of the entire electronic device can be improved, so that the heat conduction and heat dissipation of the electronic device are more uniform, and heat concentration is avoided, thereby improving the reliability of the middle frame assembly and the electronic device, which is conducive to extending the service life of the electronic device.
[0007] An electronic device according to an embodiment of the present application includes a middle frame assembly according to the above embodiment of the present application.
[0008] The electronic device according to the embodiment of the present application is provided with a middle frame assembly according to the above embodiment of the present application, thereby effectively avoiding the arching of the flexible screen during the folding process and effectively solving the problem of cracking of the flexible screen, and can also improve the heat dissipation effect of the entire electronic device, making the heat conduction and heat dissipation of the electronic device more uniform, avoiding heat concentration, and thus improving the reliability of the electronic device, which is conducive to extending the service life of the electronic device.
[0009] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0011] Figure 1 is an exploded view of a middle frame assembly according to some embodiments of the present application;
[0012] Figure 2 is a cross-sectional view of a middle frame assembly according to some embodiments of the present application;
[0013] Figure 3 yes Figure 2 A magnified view of part A;
[0014] Figure 4 is a cross-sectional view of a middle frame assembly according to some embodiments of the present application;
[0015] Figure 5 yes Figure 4 A magnified view of part B;
[0016] Figure 6 is a schematic diagram of an electronic device according to some embodiments of the present application.
[0017] Reference numerals:
[0018] 100. Electronic equipment;
[0019] 10. Middle frame assembly;
[0020] 1. Middle frame body;
[0021] 11. first frame; 12. second frame; 121. sliding groove; 122. matching hole; 13. rotating shaft;
[0022] 2. heat dissipation assembly; 21. heat dissipation plate; 22. first heat transfer plate; 23. second heat transfer plate; 231. fixing portion;
[0023] 3. Elastic parts;
[0024] 20. Flexible screen. DETAILED DESCRIPTION
[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.
[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] Reference below Figure 1-Figure 6 The middle frame assembly 10 of the electronic device 100 according to the embodiment of the present application is described, wherein Figure 6 As shown, the electronic device 100 includes a flexible screen 20, and the flexible screen 20 is foldable.
[0029] like Figure 1 As shown, the middle frame assembly 10 of the electronic device 100 according to the embodiment of the present application includes: a middle frame body 1 and a heat dissipation assembly 2.
[0030] Specifically, if Figure 1 As shown, the middle frame body 1 includes a first frame body 11 and a second frame body 12 connected to each other, and a rotating shaft 13 is provided between the first frame body 11 and the second frame body 12, and the first frame body 11 and the second frame body 12 can rotate around the rotating shaft 13 to switch between the unfolded state and the folded state. In this way, the folding and unfolding of the electronic device 100 can be realized. It is known that the flexible screen 20 of the electronic device 100 is connected to the middle frame body 1, so that when the middle frame body 1 is subjected to an external force and switches between the unfolded state and the folded state, the flexible screen 20 can also be unfolded and folded.
[0031] like Figure 1 As shown, the heat dissipation assembly 2 includes a heat dissipation plate 21, a first heat transfer plate 22 and a second heat transfer plate 23. The first heat transfer plate 22 and the second heat transfer plate 23 are arranged at intervals. The first heat transfer plate 22 is fixed on the first frame body 11. The second heat transfer plate 23 is arranged on the second frame body 12 and can move between a first position and a second position relative to the second frame body 12. The second position is located between the first heat transfer plate 22 and the first position. The heat dissipation plate 21 is located on a side of the first heat transfer plate 22 and the second heat transfer plate 23 away from the middle frame body 1 and is connected to the first heat transfer plate 22 and the second heat transfer plate 23 respectively. When the middle frame body 1 switches from an unfolded state to a folded state, the heat dissipation plate 21 is gradually folded between the first frame body 11 and the second frame body 12.
[0032] It can be seen that, compared with the prior art, in the middle frame assembly 10 of the embodiment of the present application, the heat sink 21 is not fixed on the middle frame body 1, but is connected to the first heat transfer plate 22 and the second heat transfer plate 23 respectively, and the second heat transfer plate 23 can be moved relative to the second frame body 12, so that a part of the heat sink 21 can be moved relative to the middle frame body 1. It can be understood that when the middle frame body 1 switches from the unfolded state to the folded state under the action of external force, the heat sink 21 and the flexible screen 20 of the electronic device 100 will gradually fold between the first frame 11 and the second frame 12. At this time, the heat sink 21 is located on the outside of the flexible screen 20, so that during the folding process, the heat sink 21 will be subjected to tensile stress toward the folding center. Since the second heat transfer plate 23 is connected to the heat sink 21, under the action of tensile stress, the heat sink 21 will drive the second heat transfer plate 23 to move from the second position to the first position, thereby moving the heat sink 21 toward the folding center relative to the second frame 12, thereby ensuring the reliability of the folding of the flexible screen 20, effectively avoiding the arching of the flexible screen 20 during the folding process, effectively solving the problem of cracking of the flexible screen 20, improving the reliability of the electronic device 100, and helping to extend the service life of the electronic device 100.
[0033] At the same time, it can be known that since the first heat transfer plate 22 is arranged on the first frame 11, the second heat transfer plate 23 is arranged on the second frame 12, and the heat dissipation plate 21 is respectively connected to the first heat transfer plate 22 and the second heat transfer plate 23, it can be understood that the heat dissipation plate 21 extends from the first frame 11 to the second frame 12, thereby improving the heat dissipation effect of the entire electronic device 100, making the heat conduction and heat dissipation of the electronic device 100 more uniform, avoiding heat concentration, improving the reliability of the middle frame assembly 10 and the electronic device 100, and helping to extend the service life of the electronic device 100.
[0034] According to the middle frame assembly 10 of the electronic device 100 of the embodiment of the present application, the heat dissipation assembly 2 includes a heat dissipation plate 21, a first heat transfer plate 22 and a second heat transfer plate 23, the first heat transfer plate 22 and the second heat transfer plate 23 are arranged at intervals, the first heat transfer plate 22 is fixed on the first frame body 11, the second heat transfer plate 23 is arranged on the second frame body 12 and can move between a first position and a second position relative to the second frame body 12, the second position is located between the first heat transfer plate 22 and the first position, the heat dissipation plate 21 is located on a side of the first heat transfer plate 22 and the second heat transfer plate 23 away from the middle frame body 1 and is respectively connected to the first heat transfer plate 22 and the second heat transfer plate 23, when the middle frame body 1 switches from the unfolded state to the folded state, the heat dissipation plate 21 is gradually folded between the first frame body 11 and the second frame body 12. This not only effectively prevents the flexible screen 20 from arching during the folding process and effectively solves the problem of cracking of the flexible screen 20, but also improves the heat dissipation effect of the entire electronic device 100, making the heat conduction and heat dissipation of the electronic device 100 more uniform and avoiding heat concentration, thereby improving the reliability of the middle frame assembly 10 and the electronic device 100, which is conducive to extending the service life of the electronic device 100.
[0035] like Figure 1-Figure 3 As shown, according to some embodiments of the present application, sliding grooves 121 are respectively provided on the opposite side walls of the second frame body 12, and the extending direction of the sliding grooves 121 is the same as the extending direction of the second frame body 12, and the opposite ends of the second heat transfer plate 23 are respectively extended into the corresponding sliding grooves 121 and can slide in the sliding grooves 121. It can be seen that the matching mode of the second heat transfer plate 23 and the second frame body 12 is simple and easy to assemble, which can ensure the reliability of the second heat transfer plate 23 moving relative to the second frame body 12. At the same time, the reliability of the second heat transfer plate 23 being arranged on the second frame body 12 can be improved to a certain extent, and the second heat transfer plate 23 can be prevented from detaching from the second frame body 12 to a certain extent. In this way, the reliability of the middle frame assembly 10 is improved.
[0036] like Figure 1 As shown, according to some embodiments of the present application, the middle frame assembly 10 also includes an elastic member 3, which is connected to the second heat transfer plate 23. When the middle frame body 1 switches from the unfolded state to the folded state, the second heat transfer plate 23 gradually squeezes the elastic member 3; in the unfolded state, the elastic member 3 often drives the second heat transfer plate 23 to be located in the first position.
[0037] It is known that when the middle frame body 1 switches from the unfolded state to the folded state under the action of external force, the second heat transfer plate 23 moves from the second position to the first position, so that the second heat transfer plate 23 gradually squeezes the elastic member 3, so that the elastic member 3 has a certain elastic force on the second heat transfer plate 23, and the direction of the elastic force is toward the first position. Then, in the unfolded state, under the elastic force of the elastic member 3, the second heat transfer plate 23 will be driven to move from the second position back to the first position. The heat sink 21 is connected to the second heat transfer plate 23, so it will also move with the second heat transfer plate 23 relative to the second frame 12, and then return to the state before folding. In this way, it can also be avoided to a certain extent that the heat sink 21 cannot return to its original position and affect the unfolding of the flexible screen 20. For example, the heat sink 21 is a graphite sheet, and graphite has no elasticity. It cannot automatically return to its original position after folding. Therefore, the setting of the elastic member 3 in the present application can effectively solve the problem of the heat sink 21 returning from the folded state to the unfolded state, avoid the flexible screen 20 from arching, and thus improve the reliability of the electronic device 100.
[0038] like Figure 4 and Figure 5 As shown, in some embodiments of the present application, two ends of the elastic member 3 are respectively connected to the second heat transfer plate 23 and the second frame 12. This makes it easy to install the elastic member 3, which helps to reduce the space occupied by the structure for installing the elastic member 3.
[0039] like Figure 4 and Figure 5 As shown, in some embodiments of the present application, a fixing portion 231 is provided on one end of the second heat transfer plate 23 close to the first heat transfer plate 22, one end of the elastic member 3 is connected to the fixing portion 231, and the other end is connected to one end of the second frame body 12 close to the second frame body 12. Thus, it can be ensured that when the middle frame body 1 switches from the unfolded state to the folded state, the second heat transfer plate 23 can squeeze the elastic member 3, and further, it can be ensured that when the folded state is switched to the unfolded state, the heat dissipation plate 21 can return to the original position, thereby preventing the flexible screen 20 from arching, improving the reliability of the middle frame assembly 10, and improving the reliability of the electronic device 100.
[0040] like Figure 5As shown, in some embodiments of the present application, the fixing portion 231 is arranged at the bottom of the second heat transfer plate 23, and a matching hole 122 is arranged on the bottom wall of the second frame 12. A part of the fixing portion 231 passes through the matching hole 122 to be matched and connected with the elastic member 3, and the fixing portion 231 is movable relative to the matching hole 122. It should be noted here that the bottom refers to the part of the second heat transfer plate 23 close to the second frame 12, and the bottom wall refers to the wall of the second frame 12 away from the heat dissipation plate 21. It can be seen that the elastic member 3 is installed below the second heat transfer plate 23, and the elastic member 3 can be separated from the moving path of the second heat transfer plate 23 to ensure the reliability of the movement of the second heat transfer plate 23. At the same time, it can be understood that when the second heat transfer plate 23 moves between the first position and the second position, the fixing portion 231 can move in the matching hole 122.
[0041] like Figure 1 As shown, in some embodiments of the present application, there are multiple fixing parts 231 and they are arranged at intervals, there are multiple elastic members 3, and the multiple elastic members 3 are arranged one by one with the multiple fixing parts 231. This can improve the reliability of the second heat transfer plate 23 returning to the original position when switching from the folded state to the unfolded state. At the same time, it can be understood that even if part of the multiple elastic members 3 fails, the other part of the elastic members 3 that have not failed can still be used to drive the second transmission plate to move toward the first position to return to the original position. In addition, the service life of the middle frame assembly 10 and the electronic device 100 can be extended to a certain extent, and the frequency of maintenance of the electronic device 100 can be reduced.
[0042] In some embodiments of the present application, the elastic member 3 is a spring. This ensures that the elastic member 3 has a reliable elastic force. At the same time, it can be seen that the elastic member 3 has a simple structure, a wide range of sources, low cost, and easy installation. Of course, it should be noted that the elastic member 3 can also be other structural members as long as the reliability of the elastic member 3 is guaranteed.
[0043] According to some embodiments of the present application, at least one of the heat sink 21, the first heat transfer plate 22, and the second heat transfer plate 23 is a graphite material. It is known that graphite has relatively stable chemical properties and is insoluble in water, dilute acid, dilute alkali, and organic solvents. It has reliable heat conduction and heat dissipation effects, thereby ensuring the heat dissipation effect of the electronic device 100. Of course, it should be noted that the material of the heat sink 21, the first heat transfer plate 22, and the second heat transfer plate 23 is not limited thereto, and can also be other materials as long as they can effectively conduct heat and dissipate heat.
[0044] like Figure 6 As shown, the electronic device 100 according to an embodiment of the present application includes the middle frame assembly 10 according to the above embodiment of the present application.
[0045] According to the electronic device 100 of the embodiment of the present application, by setting the middle frame assembly 10 according to the above embodiment of the present application, it can not only effectively avoid the arching of the flexible screen 20 during the folding process and effectively solve the problem of cracking of the flexible screen 20, but also improve the heat dissipation effect of the entire electronic device 100, so that the heat conduction and heat dissipation of the electronic device 100 are more uniform, avoid heat concentration, and then improve the reliability of the electronic device 100, which is conducive to extending the service life of the electronic device 100.
[0046] Other structures and operations of the electronic device 100 according to the embodiment of the present application are known to those skilled in the art and will not be described in detail here.
[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0048] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. A middle frame assembly of an electronic device, characterized in that: include: A middle frame body, the middle frame body comprising a first frame body and a second frame body connected to each other, a rotating shaft is provided between the first frame body and the second frame body, and the first frame body and the second frame body can rotate around the rotating shaft to switch between an unfolded state and a folded state; A heat dissipation component, the heat dissipation component comprising a heat dissipation plate, a first heat transfer plate and a second heat transfer plate, the first heat transfer plate and the second heat transfer plate are arranged at intervals, the first heat transfer plate is fixed on the first frame body, the second heat transfer plate is arranged on the second frame body and can move between a first position and a second position relative to the second frame body, the second position is located between the first heat transfer plate and the first position, the heat dissipation plate is located on a side of the first heat transfer plate and the second heat transfer plate away from the middle frame body and is respectively connected to the first heat transfer plate and the second heat transfer plate; An elastic member, a fixing portion is provided on one end of the second heat transfer plate close to the first heat transfer plate, one end of the elastic member is connected to the fixing portion, and the other end is connected to one end of the second frame body close to the second frame body, when the middle frame body switches from the unfolded state to the folded state, the second heat transfer plate gradually squeezes the elastic member, and the heat dissipation plate gradually folds between the first frame body and the second frame body; in the unfolded state, the elastic member always drives the second heat transfer plate to be located at the first position.
2. The middle frame assembly of the electronic device according to claim 1, characterized in that: Sliding grooves are respectively provided on opposite side walls of the second frame body. The extending direction of the sliding grooves is the same as the extending direction of the second frame body. The opposite ends of the second heat transfer plate respectively extend into the corresponding sliding grooves and can slide in the sliding grooves.
3. The middle frame assembly of the electronic device according to claim 1, characterized in that: The fixing part is arranged at the bottom of the second heat transfer plate, a matching hole is arranged on the bottom wall of the second frame body, a part of the fixing part passes through the matching hole to be matched and connected with the elastic member, and the fixing part is movable relative to the matching hole.
4. The middle frame assembly of the electronic device according to claim 1, characterized in that: There are a plurality of fixing parts which are arranged at intervals, there are a plurality of elastic members, and the plurality of elastic members are arranged in a one-to-one correspondence with the plurality of fixing parts.
5. The middle frame assembly of the electronic device according to claim 1, characterized in that: The elastic member is a spring.
6. The middle frame assembly of the electronic device according to any one of claims 1 to 5, characterized in that: At least one of the heat dissipation plate, the first heat transfer plate and the second heat transfer plate is a graphite material piece.
7. An electronic device, characterized in that: Comprising the middle frame assembly according to any one of claims 1-6.