Electronic device

Abstract

The application discloses an electronic device, and belongs to the technical field of electronic devices. The electronic device comprises a frame body, a circuit board, a limiting part and an elastic pressing part. The circuit board is located in a space enclosed by the frame body, and the limiting part is arranged on the frame body or the circuit board. The elastic pressing part is connected with the limiting part, and moves between a releasing position and a limiting position. In the limiting position, the elastic pressing part limits the circuit board, and in the releasing position, the elastic pressing part releases the limitation on the circuit board. A part of the elastic pressing part passes through the limiting part by deformation in the movement process, and in the limiting position, the limiting part limits the movement of the elastic pressing part to the releasing position.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, and specifically relates to an electronic device. Background Technology

[0002] As electronic devices become thinner and lighter, the internal stacking space of electronic devices is becoming increasingly tight. As a core component, the circuit board needs to be pre-fixed during assembly and transportation to avoid falling off and affecting production or causing damage. Existing pre-fixing solutions generally use a snap-fit ​​structure to achieve pre-fixation. The snap-fit ​​structure fixes the circuit board through hard contact, which can easily scratch the circuit board or produce lint. Summary of the Invention

[0003] This application aims to provide an electronic device that solves the problem that current snap-fit ​​structures, which use hard contact for fixing, are prone to scratching circuit boards or producing lint.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] This application provides an electronic device, which includes:

[0006] Frame;

[0007] The circuit board is located within the space enclosed by the frame.

[0008] A limiting part is provided in the frame or circuit board;

[0009] The elastic pressing member is connected to the limiting part. The elastic pressing member moves between the release position and the limiting position. In the limiting position, the elastic pressing member limits the circuit board. In the release position, the elastic pressing member releases the limiting of the circuit board. A part of the elastic pressing member passes over the limiting part by deformation during the movement. In the limiting position, the limiting part restricts the elastic pressing member from moving to the release position.

[0010] In the embodiments of this application, the limiting part can be disposed on the frame or the circuit board. The main function of the limiting part is to provide a stop position for the elastic pressing component. The elastic pressing component can be made of metal or plastic with elastic recovery capability. The elastic pressing component and the limiting part form a mating relationship, and the elastic pressing component can reciprocate between the release position and the limiting position under the action of external force. In the release position, the elastic pressing component is retracted outside the assembly path of the circuit board or maintains a non-interference state with the circuit board, so that the circuit board can be smoothly installed into the frame without obstruction, while avoiding the risk of scratching the circuit board due to hard contact. After the circuit board is assembled, the elastic pressing component moves towards the limiting position under force. During this process, the local structure of the elastic pressing component will undergo elastic deformation to cross the limiting part. When the elastic pressing component reaches the limiting position, the limiting part forms a reverse stop on the elastic pressing component, preventing the elastic pressing component from rotating back to the release position on its own. This allows the elastic pressing component to stably limit the circuit board and prevent the circuit board from falling out of the frame during subsequent transportation or testing. Compared to traditional screw-locking circuit board solutions, the elastic pressing component of this application eliminates the need for additional screw holes or pre-reserved assembly space on the circuit board, alleviating structural layout pressure on the circuit board. Compared to traditional snap-fit ​​structures, the elastic pressing component eliminates direct scraping between the snap-fit ​​structure and the edge of the circuit board by deforming across the limiting part. That is, the deformation occurs between the limiting part and the elastic pressing component, without directly scraping the circuit board, thus avoiding the risk of circuit board circuit damage or clipping contamination of the internal components, thereby balancing space utilization, assembly safety, and operational reliability.

[0011] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a schematic diagram showing that the circuit board is not properly installed according to an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the elastic compression member in the released position according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the elastic pressing member in the limiting position according to an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of a mounting base disposed on a circuit board according to an embodiment of the present invention;

[0017] Figure 5 This is a partial schematic diagram of an electronic device according to an embodiment of the present invention;

[0018] Figure 6 This is a schematic diagram of the mounting base being disposed on the frame according to an embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram showing that the circuit board is not properly installed according to an embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the elastic compression member in the released position according to an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the elastic pressing member in the limiting position according to an embodiment of the present invention;

[0022] Figure 10 This is a partial schematic diagram of an electronic device according to an embodiment of the present invention;

[0023] Figure 11 This is a partial schematic diagram of an electronic device according to an embodiment of the present invention;

[0024] Figure 12 This is a partial schematic diagram of an electronic device according to an embodiment of the present invention;

[0025] Figure 13 This is a partial schematic diagram of an electronic device according to an embodiment of the present invention;

[0026] Figure 14 This is a schematic diagram showing a portion of the elastic pressing member extending into the third groove according to an embodiment of the present invention;

[0027] Figure 15 This is a schematic diagram of the elastic pressing member extending into the third groove according to an embodiment of the present invention;

[0028] Figure 16 This is a schematic diagram of the elastic pressing member and the limiting post cooperating according to an embodiment of the present invention.

[0029] Figure label:

[0030] 110 Frame, 111 First groove, 112 Second groove, 113 Third groove, 114 Guide groove, 115 Connecting groove, 116 Receiving groove, 117 Inner wall of the first groove, 120 Circuit board, 130 Limiting part, 131 Protrusion, 132 Limiting post, 140 Elastic pressing part, 141 Main body, 142 First end, 143 Second end, 144 First deformation part, 145 Second deformation part, 146 Abutting part, 147 Elastic fitting part, 148 Pressing part, 149 Disassembly port, 151 Fastening hole, 152 Opening, 153 First elastic arm, 154 Second elastic arm, 155 Bearing part, 160 Mounting base, 171 First support part, 172 Second support part, 173 Rotary shaft hole. Detailed Implementation

[0031] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0032] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following is combined with Figures 1-16 An electronic device according to an embodiment of the present invention is described.

[0036] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments of this application, an electronic device is proposed, comprising a frame 110, a circuit board 120, a limiting part 130, and an elastic pressing member 140. The circuit board 120 is located within the space enclosed by the frame 110, and the limiting part 130 is disposed on the frame 110 or the circuit board 120. The elastic pressing member 140 is connected to the limiting part 130, and the elastic pressing member 140 moves between a release position and a limiting position. In the limiting position, the elastic pressing member 140 limits the circuit board 120; in the release position, the elastic pressing member 140 releases the limitation on the circuit board 120. A portion of the elastic pressing member 140 deforms and passes over the limiting part 130 during movement, and in the limiting position, the limiting part 130 restricts the movement of the elastic pressing member 140 towards the release position.

[0037] The frame 110 is typically a mid-frame structure made of metal or high-strength plastic. The frame 110 encloses and forms the internal storage space of the entire device, thus providing physical protection for the circuit board 120 and other components. The circuit board 120 houses devices such as the processor, RF module, power management unit, and memory chips.

[0038] The limiting part 130 can be disposed on the frame 110 or the circuit board 120. The main function of the limiting part 130 is to provide a stop position for the elastic pressing member 140. The elastic pressing member 140 can be made of metal or plastic with elastic recovery capability. The elastic pressing member 140 and the limiting part 130 form a mating relationship. The elastic pressing member 140 can reciprocate between the release position and the limiting position under the action of external force. In the release position, the elastic pressing member 140 is completely retracted outside the assembly path of the circuit board 120 or maintains a non-interference state with the circuit board 120, so that the circuit board 120 can be smoothly installed into the frame 110 without obstruction, while avoiding the risk of scratching the circuit board 120 due to hard contact. After the circuit board 120 is assembled, the elastic pressing member 140 moves towards the limiting position under force. During this process, a local structure of the elastic pressing member 140 undergoes elastic deformation to overcome the limiting part 130. When the elastic pressing member 140 reaches the limiting position, the limiting part 130 forms a reverse stop on the elastic pressing member 140, preventing the elastic pressing member 140 from rotating back to the release position on its own. This allows the elastic pressing member 140 to stably limit the circuit board 120, preventing the circuit board 120 from falling out of the frame 110 during subsequent transportation or testing. Compared with the traditional screw-locking solution for the circuit board 120, the elastic pressing member 140 of this application does not require additional screw holes or reserved assembly operation space on the circuit board 120, alleviating the structural layout pressure on the circuit board 120. Compared to the traditional snap-fit ​​structure, the elastic pressing component 140 eliminates the direct scraping between the snap-fit ​​structure and the edge of the circuit board 120 by deforming across the limiting part 130. That is, the deformation occurs between the limiting part 130 and the elastic pressing component 140, and does not directly scrape the circuit board 120. This avoids the risk of circuit damage to the circuit board 120 or chipping from the snap-fit ​​contaminating the inside of the machine, thus balancing space utilization, assembly safety and reliability.

[0039] Combination Figure 4 , Figure 5 and Figure 6 As shown, in one possible embodiment, the electronic device further includes a mounting base 160, which is disposed on one of the circuit board 120 and the frame 110. The mounting base 160 is provided with a pivot hole 173. One side of the elastic pressing member 140 is rotatably connected to the pivot hole 173. In the limited position, the other side of the elastic pressing member 140 abuts against the other of the circuit board 120 and the frame 110.

[0040] Mounting base 160 serves as the supporting base for elastic pressing component 140. Mounting base 160 can be fixed to the surface of circuit board 120 by surface mount welding, hot melt or adhesive bonding, or it can be integrally formed or glued to the inner wall of frame 110.

[0041] The pivot hole 173 provided on the mounting base 160 allows the elastic pressing member 140 to rotate relative to the circuit board 120, so that the elastic pressing member 140 can swing between the release position and the limit position.

[0042] When the mounting base 160 is placed on the circuit board 120, during the installation of the circuit board 120, the elastic pressing member 140 is positioned away from the frame 110 to avoid interfering with the installation process of the circuit board 120. After the circuit board 120 is in place, the elastic pressing member 140 is rotated, and one side of the elastic pressing member 140 abuts against the frame 110, thereby limiting the position of the circuit board 120. During the pre-fixation process of the circuit board 120, it is not necessary to deform the circuit board 120, thus avoiding damage to the circuit board 120.

[0043] When the mounting base 160 is placed on the frame 110, first rotate the elastic pressing member 140 to a position that will not interfere with the circuit board 120. After the circuit board 120 is installed in place, rotate the elastic pressing member 140 so that one side of the elastic pressing member 140 abuts against the circuit board 120, thereby limiting the circuit board 120. During this process, the circuit board 120 will not be damaged due to deformation.

[0044] The limiting effect of the limiting part 130 on the elastic pressing part 140 is converted into a limiting force on the circuit board 120, avoiding the risk of damage that may be caused by setting a force-bearing structure directly on the edge of the circuit board 120. At the same time, the introduction of the rotating structure makes the movement trajectory of the elastic pressing part 140 more controllable and convenient to operate. Moreover, the rotating part has a simple structure, occupies little space, and can achieve a reliable pre-fixing function within the limited clearance area of ​​the circuit board 120.

[0045] Combination Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, in one possible embodiment, the mounting base 160 is provided with a first support portion 171 and a second support portion 172 spaced apart, and both the first support portion 171 and the second support portion 172 are provided with a pivot hole 173. The limiting portion 130 is provided at the first support portion 171 and the second support portion 172 in the axial direction (e.g., Figure 5 The protrusion 131 at the end (in the direction indicated by the middle arrow A).

[0046] The elastic pressing component 140 includes a main body 141 and a first end 142 and a second end 143 disposed at both ends of the main body 141. The first end 142 and the second end 143 are both at an angle to the main body 141. The first end 142 is rotatably connected to the pivot hole 173 in the first support 171, and the second end 143 is rotatably connected to the pivot hole 173 in the second support 172. During the movement, the main body 141 deforms and passes over the protrusion 131. In the limited position, the main body 141 abuts against the circuit board 120 or the frame 110.

[0047] The first support portion 171 and the second support portion 172 are arranged at intervals on the mounting base 160.

[0048] In one possible embodiment, the first support portion 171 and the pivot hole 173 inside the second support portion 172 are coaxially aligned, thereby jointly providing dual-point support for the elastic pressing member 140. This dual-pivot structure can effectively resist the torsional deformation generated by the elastic pressing member 140 when subjected to force, thereby improving the stability of the overall structure.

[0049] The limiting part 130 is configured as a protrusion 131 at the axial end of the first support part 171 and the second support part 172. The protrusion 131 can be integrally formed with the mounting base 160 during injection molding, or it can be obtained through subsequent machining. The function of the protrusion 131 is to stop the elastic pressing part 140 after it moves to the limiting position.

[0050] The first end 142 of the elastic pressing member 140 is rotatably engaged with the pivot hole 173 in the first support portion 171, and the second end 143 is rotatably engaged with the pivot hole 173 in the second support portion 172, allowing the main body 141 to swing smoothly between the two supports. When the main body 141 moves towards the limiting position, it contacts the protrusion 131 and deforms. Once the main body 141 passes the protrusion 131, the deformed main body 141 is stably abutted against the circuit board 120 or the frame 110 in the limiting position. Through the design of double pivots and double protrusions 131 for limiting, the vibration and impact resistance of the elastic pressing member 140 in the limiting state is significantly improved, ensuring that the circuit board 120 will not loosen when the whole machine is dropped or subjected to external impact.

[0051] Combination Figure 1 , Figure 4 and Figure 6As shown, in one possible embodiment, the main body 141 includes a first deformable part 144, a second deformable part 145, and abutting part 146. The first end of the first deformable part 144 is connected to the first end 142, the first end of the second deformable part 145 is connected to the second end 143, and the second ends of the first deformable part 144 and the second ends of the second deformable part 145 are connected to the two ends of the abutting part 146. In the limited position, the abutting part 146 abuts against the circuit board 120 or the frame 110.

[0052] The first end of the first support portion 171 faces the second support portion 172, and the first end of the second support portion 172 faces the first support portion 171. The first end portion 142 is inserted into the first support portion 171 from the first end of the first support portion 171, and the second end portion 143 is inserted into the second support portion 172 from the first end of the second support portion 172. Both the first end of the first support portion 171 and the first end of the second support portion 172 are provided with protrusions 131. The first deformation portion 144 and the second deformation portion 145 deform close to each other to pass over the protrusions 131.

[0053] When the elastic pressing member 140 moves towards the limiting position, the first deformable part 144 contacts the protrusion 131 at the axial end of the first support part 171, and the second deformable part 145 contacts the protrusion 131 at the axial end of the second support part 172. Under the action of the two sets of protrusions 131, the first deformable part 144 and the second deformable part 145 elastically bend towards each other, so that the first deformable part 144 and the second deformable part 145 can pass over the protrusion 131. The first deformable part 144 and the second deformable part 145 store elastic potential energy during deformation and release it after passing over the protrusion 131. The protrusion 131 forms a limit on the first deformable part 144 and the second deformable part 145. Without sufficient external force, the abutment part 146 can stably adhere to the surface of the circuit board 120 or the frame 110.

[0054] The design of the ends of the first support portion 171 and the second support portion 172 facing each other allows the first end portion 142 and the second end portion 143 to be inserted into the pivot hole 173 from the position between the first support portion 171 and the second support portion 172, simplifying the assembly process. The abutment portion 146, as the part that directly contacts the circuit board 120 or the frame 110, can have an anti-slip texture or a buffer layer on its surface to reduce contact stress and improve the reliability of the limiting mechanism. The overall structure achieves uniform force distribution through symmetrically arranged deformation portions, avoiding local fatigue fracture caused by excessive force on one side and extending the service life of the pre-fixing mechanism.

[0055] Of course, in other embodiments, the following configuration may be provided: the second end of the first support portion 171 is away from the second support portion 172, the second end of the second support portion 172 is away from the first support portion 171, the first end portion 142 is inserted into the first support portion 171 from the second end of the first support portion 171, the second end portion 143 is inserted into the second support portion 172 from the second end of the second support portion 172, both the second end of the first support portion 171 and the second end of the second support portion 172 are provided with protrusions 131, and the first deformation portion 144 and the second deformation portion 145 deform away from each other to pass over the protrusions 131.

[0056] In one possible embodiment, with the mounting base 160 disposed on the circuit board 120 and the elastic pressing member 140 in the limiting position, a portion of the first deformable part 144 bends toward the circuit board 120 from the second end to the first end of the first deformable part 144, and a portion of the second deformable part 145 bends toward the circuit board 120 from the second end to the first end of the second deformable part 145. This configuration can improve the supporting and limiting effect of the first deformable part 144 and the second deformable part 145 on the circuit board 120.

[0057] With the mounting base 160 disposed on the frame 110 and the elastic pressing member 140 in the limiting position, a portion of the first deformable part 144 bends away from the frame 110 from its first end to its second end, and a portion of the second deformable part 145 bends away from the frame 110 from its first end to its second end. This configuration can improve the supporting and limiting effect of the first deformable part 144 and the second deformable part 145 on the circuit board 120.

[0058] Combination Figure 1 , Figure 4 and Figure 6 As shown, in one possible embodiment, when the mounting base 160 is disposed on the circuit board 120, the frame 110 is provided with a first groove 111, and in the limiting position, a portion of the elastic pressing member 140 abuts against the inner wall of the first groove 111. When the mounting base 160 is disposed on the frame 110, the frame 110 is provided with a second groove 112, and at least a portion of the mounting base 160 is accommodated within the second groove 112.

[0059] When the mounting base 160 is placed on the circuit board 120, a first groove 111 is formed on the inner side wall of the frame 110. In the limited position, the elastic pressing member 140 abuts against the inner wall of the first groove 111. This design utilizes the original thickness space of the frame 110 and avoids the elastic pressing member 140 protruding from the inner surface of the frame 110 and occupying additional layout space of the circuit board 120.

[0060] When the mounting base 160 is placed on the frame 110, the frame 110 has a second groove 112, and at least a portion of the mounting base 160 is accommodated in the second groove 112. This design is also to reduce the space occupied by the pre-fixing mechanism in the internal space of the whole machine, so that the circuit board 120 can be arranged closer to the inside of the frame 110 to meet the needs of ultra-thin design. The depth and shape of the groove can be adjusted according to the actual size of the mounting base 160 to ensure that the mounting base 160 will not shake or shift in the groove.

[0061] Combination Figure 10 , Figure 11 and Figure 12 As shown, in one possible embodiment, the elastic pressing member 140 includes an elastic mating part 147 and a pressing part 148 connected to each other. The frame 110 is provided with a third groove 113 on the side facing the circuit board 120. A part of the elastic mating part 147 extends into the space between the frame 110 and the circuit board 120 through the third groove 113. In the limiting position, the elastic mating part 147 is elastically engaged with the limiting part 130, and the pressing part 148 abuts against the surface of the circuit board 120.

[0062] The elastic pressing component 140 can be produced and assembled as an independent standard component, without relying on the complex auxiliary structures on the circuit board 120 or the frame 110, thus reducing the overall design and manufacturing cost of the machine.

[0063] During assembly, a portion of the elastic mating part 147 extends into the gap between the frame 110 and the circuit board 120 through the third groove 113, utilizing the gap space to complete the installation without requiring additional operating space. In the limiting position, the elastic mating part 147 and the limiting part 130 form an elastic fastening relationship. This fastening structure relies on the elastic force of the elastic mating part 147 itself to maintain the locking state, without the need for additional fasteners. At the same time, the pressing part 148 abuts against the surface of the circuit board 120, limiting the circuit board 120 and preventing the circuit board 120 from floating upwards or coming out of the frame 110 during assembly.

[0064] The independent design also allows the elastic compression member 140 to be made of non-metallic materials, avoiding interference with the antenna signal of the frame 110, and it can be directly replaced if damaged, resulting in low maintenance costs.

[0065] Combination Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16As shown, in one possible embodiment, during the operation of the elastic pressing member 140 between the release position and the limit position, the pressing part 148 moves toward or away from the circuit board 120, or the pressing part 148 adheres to the circuit board 120 and translates relative to the circuit board 120.

[0066] In this embodiment, the movement of the elastic pressing member 140 during the installation process is defined. The first form is that the pressing part 148 moves towards or away from the circuit board 120. During the movement, the pressing part 148 gradually approaches the circuit board 120 and finally abuts against the surface of the circuit board 120. This progressive contact method can reduce the impact force on the circuit board 120 during assembly and avoid damage to the devices on the surface of the circuit board 120.

[0067] The second form is that the pressing part 148 is attached to the circuit board 120 and moves relative to the circuit board 120. The pressing part 148 always keeps in contact with the surface of the circuit board 120, and the translational movement trajectory is more stable.

[0068] Both of the above-mentioned motion modes can ensure that the pressing part 148 acts stably on the circuit board 120 in the limited position, and will not generate unexpected shearing or peeling forces on the circuit board 120 during the motion, thereby improving the safety and reliability of the assembly.

[0069] Combination Figure 10 and Figure 13 As shown, in one possible embodiment, during the operation of the elastic pressing member 140 between the release position and the limit position, the pressing part 148 moves toward or away from the circuit board 120, the inner wall 117 of the first groove in the third groove 113 faces the circuit board 120, and the side of the elastic pressing member 140 away from the inner wall 117 of the first groove is provided with a disassembly port 149, through which the elastic pressing member 140 moves.

[0070] This embodiment further provides a method for disassembling the elastic pressing member 140, addressing the movement of the pressing part 148 towards or away from the circuit board 120. A disassembly port 149 is provided on the side of the elastic pressing member 140 facing away from the inner wall 117 of the first groove. The disassembly port 149 can be a groove, a through hole, or other shape that facilitates the application of force by tools. When it is necessary to remove the circuit board 120 from the frame 110, the operator can use simple tools such as tweezers or a pry bar to insert into the disassembly port 149, thereby facilitating the application of force to the elastic pressing member 140. This allows the elastic pressing member 140 to overcome the clamping force between the elastic mating part 147 and the limiting part 130 and move towards the release position, thus releasing the restriction on the circuit board 120. By providing a disassembly port 149 on the side of the elastic pressing member 140 facing away from the frame 110, the elastic pressing member 140 can be disassembled with less operating force, reducing the difficulty of disassembly and avoiding structural damage that may result from forceful disassembly.

[0071] Combination Figure 10 , Figure 11 , Figure 12 , Figure 14 , Figure 15 and Figure 16 As shown, in one possible embodiment, the limiting part 130 is a limiting post 132, the limiting post 132 is disposed on the inner wall of the third groove 113, the elastic fitting part 147 is provided with a fastening hole 151 and an opening 152 located on the side of the fastening hole 151, and the limiting post 132 is embedded in the fastening hole 151 through the opening 152.

[0072] The limiting post 132 can be directly formed into the inner wall of the third groove 113, or it can be fixed to the inner wall of the third groove 113 by fasteners or adhesive. The snap-fit ​​hole 151 on the elastic fitting part 147 is used to accommodate the limiting post 132, and the opening 152 is provided on the side of the snap-fit ​​hole 151 to provide a channel for the limiting post 132 to enter the snap-fit ​​hole 151. During assembly, the elastic fitting part 147 undergoes elastic deformation under force, causing the opening 152 to open and pass over the limiting post 132. Subsequently, the elastic fitting part 147 elastically recovers, allowing the limiting post 132 to be firmly embedded in the snap-fit ​​hole 151, forming a reliable snap-fit ​​relationship. This post-hole fit structure has excellent tensile and shear resistance, and can effectively resist the displacement of the circuit board 120 under vibration.

[0073] like Figure 13 As shown, in one possible embodiment, the elastic fitting part 147 includes a bearing part 155, a first elastic arm 153 and a second elastic arm 154, a pressing part 148 connected to the bearing part 155, and the first elastic arm 153 and the second elastic arm 154 spaced apart from each other on the bearing part 155.

[0074] The limiting part 130 is a connecting groove 115, along the installation direction of the elastic pressing part 140 ( Figure 13 (The arrow at point H points to this point). The third groove 113 includes a guide groove 114, a connecting groove 115, and a receiving groove 116 connected in sequence. The width of the guide groove 114 decreases from the side away from the connecting groove 115 to the side adjacent to the connecting groove 115. The width of the receiving groove 116 increases from the side adjacent to the connecting groove 115 to the side away from the connecting groove 115. The maximum distance between the first elastic arm 153 and the second elastic arm 154 is greater than the width of the connecting groove 115.

[0075] The third groove 113 is divided into three functional sections along the installation direction of the elastic pressing member 140: a guide groove 114, a connecting groove 115, and a receiving groove 116. The guide groove 114 is located on the inlet side. The width of the guide groove 114 gradually decreases from the side away from the connecting groove 115 to the side adjacent to the connecting groove 115, thereby forming a trumpet-shaped or wedge-shaped guide structure. The guide groove 114 guides the first elastic arm 153 and the second elastic arm 154, so that the first elastic arm 153 and the second elastic arm 154 gradually come closer to each other and tighten.

[0076] When the elastic fitting part 147 is pushed into the receiving groove 116, the first elastic arm 153 and the second elastic arm 154 open outward under their own elastic force. Since the maximum distance between the first elastic arm 153 and the second elastic arm 154 is greater than the width of the connecting groove 115, the first elastic arm 153 and the second elastic arm 154 are embedded in the receiving groove 116, preventing the elastic pressing part 140 from loosening in the opposite direction of installation. This groove design with a gradually changing width, combined with the elastic structure of the elastic arm, realizes the guiding function and reliable locking function of the assembly process, and improves the stability and durability of the pre-fixing mechanism.

[0077] In the embodiments of this application, a pre-fixing mechanism for circuit board 120 is proposed, which avoids the problem of scratching the circuit board caused by the conventional solution of fixing by the middle frame molded out. It also does not require the additional space occupied by the locking plate screws, and can ensure the consistency of long-term use.

[0078] Three embodiments are proposed, one based on circuit board 120, one based on frame 110, and one independently arranged. Circuit board 120 is pre-fixed by a movable elastic arm.

[0079] In the first embodiment, the side wall of the frame 110 is provided with a first groove 111, the mounting base 160 is fixed to the circuit board 120 by welding, and the mounting base 160 is provided with a pivot hole 173.

[0080] The elastic pressing component 140 is made of bent metal wire and has good elastic deformation capability, making it less prone to yielding. The elastic pressing component 140 forms a rotating pair with the mounting base 160 through its own pivot.

[0081] Cam structures (protrusions 131) are provided at the ends of the first support portion 171 and the second support portion 172 facing each other. The elastic pressing member 140 has two working states: a released state and a fastened state. In the released state, the elastic pressing member 140 is close to the circuit board 120 and is not engaged in the first groove 111. In the fastened state, the elastic pressing member 140 is close to the side wall of the frame 110, and a portion of the elastic pressing member 140 is engaged in the first groove 111.

[0082] After the elastic pressing member 140 completes the transition between the two states, the protrusion 131 restricts the elastic pressing member 140. The transition process is achieved by the elastic deformation of the elastic pressing member 140 itself over the protrusion 131.

[0083] When assembling circuit board 120, elastic clamping member 140 is in the released state. After circuit board 120 is inserted into frame 110, elastic clamping member 140 rotates around the support on the base, and a portion of elastic clamping member 140 enters the first groove 111. At this time, elastic clamping member 140 is held in place by protrusion 131. Circuit board 120 is restricted by frame 110 and elastic clamping member 140 and cannot be detached. When it is necessary to remove circuit board 120, elastic clamping member 140 is rotated back to the released state.

[0084] By locking the elastic pressing part 140 and the base, the locking of the elastic pressing part 140 and the frame is transformed into locking the frame. This achieves the effect of fastening with the conventional frame without occupying too much space on the circuit board 120. Moreover, during the assembly process, it does not need to make hard contact with the circuit board 120 as with conventional fastening, thus avoiding damage to the fastener or the circuit board 120.

[0085] In the second embodiment, the base and the elastic pressing member 140 are arranged on the frame 110, and the elastic pressing member 140 directly presses the circuit board 120 to prevent the circuit board 120 from detaching.

[0086] In the third embodiment, the elastic pressing member 140 is separate from the circuit board 120 and the frame 110. The elastic pressing member 140 is made of plastic with elastic deformation capability. Features for limiting the circuit board 120 and a flexible arm for flexibility are respectively provided on the elastic pressing member 140. Limiting posts 132 are provided on the side wall of the frame 110.

[0087] After the circuit board 120 is installed into the frame 110, the elastic pressing member 140 is inserted between the circuit board 120 and the side wall of the frame 110. The elastic mating part 147 deforms and continues to move downward after encountering the limiting post 132 until it clamps the limiting post 132. The pressing part 148 restricts the movement of the circuit board 120. The pre-fixation of the circuit board 120 is achieved by the elastic mating part 147 clamping the limiting post 132.

[0088] In this embodiment, the elastic compression member 140 is made of plastic, which does not couple with the antenna on the frame 110 and is independently installed, resulting in low maintenance costs and direct replacement.

[0089] In the fourth embodiment, the fit between the elastic fitting part 147 and the limiting post 132 is changed to the fit between the elastic arm and the third groove 113.

[0090] The mold for the injection molding sidewall of the frame is simpler, avoiding problems such as easy breakage and insufficient glue due to the small feature size of the limit post 132.

[0091] In the fifth embodiment, the straight-up-down assembly of the elastic fitting part 147 and the limiting post 132 is changed to a side-push assembly.

[0092] After the circuit board 120 is installed, the elastic pressing part 140 is inserted from top to bottom into the gap between the frame 110 and the circuit board 120, and then pushed sideways along the gap direction so that the elastic mating part 147 clamps the limiting post 132.

[0093] The clamping direction of the elastic fitting part 147 is perpendicular to the assembly direction of the circuit board 120 to prevent the elastic fitting part 147 from becoming fatigued after repeated disassembly and assembly, resulting in excessive opening and loosening.

[0094] The circuit board limiting structure described above is applicable to mobile phones, wearable devices, and other electronic products with similar functions.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0096] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, include: Frame; The circuit board is located within the space enclosed by the frame. A limiting part is provided on the frame or the circuit board; An elastic pressing member is connected to the limiting portion. The elastic pressing member moves between a release position and a limiting position. In the limiting position, the elastic pressing member limits the circuit board. In the release position, the elastic pressing member releases the limiting of the circuit board. A portion of the elastic pressing member deforms and passes over the limiting portion during movement. In the limiting position, the limiting portion restricts the elastic pressing member from moving towards the release position.

2. The electronic device according to claim 1, characterized in that, The electronic device also includes: A mounting base is disposed on one of the circuit board and the frame. The mounting base is provided with a pivot hole. One side of the elastic pressing member is rotatably connected to the pivot hole. In the limited position, the other side of the elastic pressing member abuts against the other of the circuit board and the frame.

3. The electronic device according to claim 2, characterized in that, The mounting base is provided with a first support portion and a second support portion at intervals, and both the first support portion and the second support portion are provided with the pivot hole. The limiting portion is a protrusion provided at the axial end of the first support portion and the second support portion. The elastic pressing component includes a main body and a first end and a second end disposed at both ends of the main body. The first end and the second end are both at an angle to the main body. The first end is rotatably connected to the pivot hole in the first support portion, and the second end is rotatably connected to the pivot hole in the second support portion. During movement, the main body deforms over the protrusion. In the limited position, the main body abuts against the circuit board or the frame.

4. The electronic device according to claim 3, characterized in that, The main body includes a first deformable part, a second deformable part, and abutting part. The first end of the first deformable part is connected to the first end, the first end of the second deformable part is connected to the second end, and the second ends of the first deformable part and the second ends of the second deformable part are connected to the two ends of the abutting part. In the limited position, the abutting part abuts against the circuit board or the frame. The first end of the first support portion faces the second support portion, and the first end of the second support portion faces the first support portion. The first end portion is inserted into the first support portion from the first end of the first support portion, and the second end portion is inserted into the second support portion from the first end of the second support portion. Both the first end of the first support portion and the first end of the second support portion are provided with the protrusion. The first deformable portion and the second deformable portion deform close to each other to pass over the protrusion.

5. The electronic device according to claim 2, characterized in that, When the mounting base is disposed on the circuit board, the frame is provided with a first groove, and at the limiting position, a portion of the elastic pressing member abuts against the inner wall of the first groove; When the mounting base is disposed on the frame, the frame is provided with a second groove, and at least a portion of the mounting base is accommodated in the second groove.

6. The electronic device according to claim 1, characterized in that, The elastic pressing component includes an elastic fitting part and a pressing part connected to each other. The frame is provided with a third groove on the side facing the circuit board. A part of the elastic fitting part extends into the space between the frame and the circuit board through the third groove. At the limiting position, the elastic fitting part is elastically engaged with the limiting part, and the pressing part abuts against the surface of the circuit board.

7. The electronic device according to claim 6, characterized in that, During the operation of the elastic pressing member between the release position and the limit position, the pressing part moves toward or away from the circuit board, or the pressing part adheres to the circuit board and translates relative to the circuit board.

8. The electronic device according to claim 6, characterized in that, During the operation of the elastic pressing member between the release position and the limiting position, the pressing part moves towards or away from the circuit board, the inner wall of the first groove in the third groove faces the circuit board, and the side of the elastic pressing member away from the inner wall of the first groove is provided with a disassembly port, through which the elastic pressing member moves.

9. The electronic device according to claim 6, characterized in that, The limiting part is a limiting post, which is disposed on the inner wall of the third groove. The elastic fitting part is provided with a fastening hole and an opening located on the side of the fastening hole. The limiting post is embedded into the fastening hole through the opening.

10. The electronic device according to claim 6, characterized in that, The elastic fitting part includes a bearing part, a first elastic arm and a second elastic arm, the pressing part is connected to the bearing part, and the first elastic arm and the second elastic arm are connected to the bearing part at intervals; The limiting part is a connecting groove. Along the installation direction of the elastic pressing member, the third groove includes a guide groove, a connecting groove and a receiving groove connected in sequence. The width of the guide groove decreases from the side away from the connecting groove to the side adjacent to the connecting groove. The width of the receiving groove increases from the side adjacent to the connecting groove to the side away from the connecting groove. The maximum distance between the first elastic arm and the second elastic arm is greater than the width of the connecting groove.

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