Electronic device
By using conductive parts to extend to the metal front shell in mobile phones, the problem of poor grounding caused by the clamp grounding method is solved, and more stable wire grounding and cost-reducing effects are achieved.
Patent Information
- Application Number
- CN202420377896.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The grounding method of wires in antenna components in existing mobile phones is generally the grounding of the clip, which can easily lead to loosening of the clip and cause poor grounding.
The conductive parts extend to the metal front shell grounding instead of the clip grounding method to improve the stability of wire grounding and simplify the assembly process.
Improves the stability of wire grounding, avoids poor grounding problems caused by loose clips, and reduces costs.
Smart Images
Figure CN222601370U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electronic equipment, and in particular, relates to an electronic equipment. Background Art
[0002] Electronic devices such as mobile phones have increasingly higher requirements for antenna performance. The frames of existing mobile phones are usually equipped with antennas, which are connected to the main board and small board arranged above and below by wires, so the wires will pass through the battery area. When the wires pass through the clearance area of the antenna, they will produce stray resonance during coupling, and the wires need to be grounded to remove this part of the impact.
[0003] In the prior art, the wire grounding method in the antenna assembly of electronic devices such as mobile phones is generally clip grounding. A layer of copper is wrapped on the wire at the position where grounding is required, and a clip is installed at the corresponding position of the mobile phone middle frame. The clip and the middle frame are grounded by interference, and the wire is fixed on the clip to achieve grounding. However, this grounding method easily causes the clip to loosen, resulting in poor grounding problems. Utility Model Content
[0004] An embodiment of the present application provides an electronic device that can improve the stability of grounding of wires in an antenna assembly.
[0005] An embodiment of the present application provides an electronic device, including:
[0006] An antenna assembly, comprising a wire, wherein the wire is used to connect a main board and a sub-board of the electronic device;
[0007] A middle frame having a first groove, wherein the first groove is used to accommodate the wire;
[0008] The front shell is made of metal material;
[0009] A conductive member connects the electric wire to the front shell to ground the electric wire through the front shell.
[0010] Optionally, the front shell has a second groove; and the conductive member includes:
[0011] A first sub-conductive member is disposed in the second groove;
[0012] The second sub-conductive member has one end disposed in the first groove to be electrically connected to the electric wire, and the other end connected to the first sub-conductive member.
[0013] Optionally, the first sub-conductive element is made of conductive foam.
[0014] Optionally, a side surface of the first sub-conductive member facing away from the second groove is flush with a side surface of the front shell different from the second groove.
[0015] Optionally, the second sub-conductive member is made of a flexible conductive material, and the second sub-conductive member is bent.
[0016] Optionally, the material of the second sub-conductive member is conductive cloth.
[0017] Optionally, the middle frame includes:
[0018] A first sub-section, provided with the first groove;
[0019] The second sub-part is bent and connected to the first sub-part, and the front shell is covered on the second sub-part. The second sub-conductive member is located between the front shell and the second sub-part.
[0020] Optionally, the middle frame is made of plastic.
[0021] Optionally, the front shell includes a side wall and a bottom wall, the side wall and the bottom wall are connected by bending, and the side wall is arranged corresponding to the first groove, and the second groove is arranged on the bottom wall.
[0022] Optionally, the side wall abuts against a side plate surrounding and forming the first groove to fix the second sub-conductive member.
[0023] In the electronic device of the embodiment of the present application, the wires are grounded by extending a conductive part to the metal front shell, replacing the clip grounding method in the prior art. On the one hand, the stability of the wire grounding can be improved, and on the other hand, there is no need to open a mold for the clip, and the assembly is simple, which can reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
[0025] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.
[0026] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.
[0027] Figure 2 A schematic structural diagram of a first angle of a local portion of an electronic device provided in an embodiment of the present application.
[0028] Figure 3 A schematic diagram of the structure of a local electronic device at a second angle provided in an embodiment of the present application.
[0029] Figure 4 for Figure 3 The cross-sectional structure diagram of a part of the electronic device along AA is shown.
[0030] Figure 5 A schematic diagram of the exploded structure of a local portion of an electronic device provided in an embodiment of the present application at a first angle.
[0031] Figure 6 A schematic diagram of the exploded structure of a local electronic device at a second angle provided in an embodiment of the present application. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0033] See also Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. This embodiment of the present application provides an electronic device 1, which can be a mobile phone, a tablet, a laptop computer, etc. This embodiment of the present application takes a mobile phone as an example for explanation, and should not be understood as limiting the type of the electronic device 1.
[0034] Among them, with the development of technology, the requirements for antenna performance in mobile phones are getting higher and higher. The frame of existing mobile phones is usually equipped with an antenna, and the main board and the small board arranged above and below are connected by wires, so that the RF chip signal on the main board can be transmitted to the small board at the bottom, so the wires will pass through the battery area. When the wire passes through the clearance area of the antenna, it will produce stray resonance during coupling, and the wire needs to be grounded to remove this part of the influence. In the prior art, the wire grounding method in the antenna assembly of electronic devices such as mobile phones is generally clip grounding. A layer of copper foil is wrapped on the wire at the position where grounding is required, and a clip is assembled at the corresponding position of the mobile phone middle frame. The clip and the middle frame are interfered with grounding, and the wire is fixed on the clip to achieve grounding. However, this grounding method easily causes the clip to loosen, resulting in the problem of poor grounding.
[0035] In order to reduce the occurrence of the above problems, the embodiment of the present application improves the grounding method of the wires in the electronic device 1, which will be described below with reference to the accompanying drawings.
[0036] Please combine Figure 1 Also see Figure 2 As shown, Figure 2The electronic device 1 includes an antenna assembly 10 , a middle frame 20 , a front housing 30 , and a conductive member 40 .
[0037] The antenna assembly 10 is a converter that converts the guided waves propagating on the transmission line into electromagnetic waves propagating in an unbounded medium, usually free space, or performs the opposite conversion. A component used to transmit or receive electromagnetic waves in a radio device. The radio frequency signal output by the radio transmitter is transmitted to the antenna through a feeder (radio frequency cable) and radiated in the form of electromagnetic waves. After the electromagnetic wave reaches the receiving point, it is received by the antenna and sent to the radio receiver through the feeder. Generally, antennas are reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving antenna. The basic characteristic parameters of the same antenna as a transmitter or receiver are the same.
[0038] Exemplarily, the antenna assembly 10 includes a wire 11, which is used to connect the main board and the sub-board of the electronic device 1 to transmit the radio frequency signal on the main board to the sub-board for application. Of course, the antenna assembly 10 also includes other components, such as a radiator, which is not limited here, and it should not be understood that the antenna assembly 10 only includes the wire 11.
[0039] The middle frame 20 is one of the components of the electronic device 1. The middle frame 20 can form a circular frame structure, and the middle frame 20 can extend at least part of the plate into the space formed by the middle frame 20 to carry the components of the electronic device 1 or facilitate connection. Exemplarily, the middle frame 20 has a first groove 21, and the first groove 21 is used to accommodate the wire 11.
[0040] The front shell 30 is disposed in the space surrounded by the middle frame 20. The front shell 30 is the part of the electronic device 1, such as a mobile phone, without the display screen, and is used to carry or cover components. The material of the front shell 30 is a metal material, which can improve the bearing strength on the one hand, and can also be used for electrical components such as grounding connection on the other hand.
[0041] The conductive member 40 connects the wire 11 and the front shell 30 to ground the wire 11 through the front shell 30, thereby reducing or eliminating the stray resonance problem caused by coupling when the wire 11 passes through the antenna clearance area.
[0042] In the electronic device 1 provided in the embodiment of the present application, the grounding of the wire 11 adopts a conductive part 40 extending to the metal front shell 30 for grounding, instead of the clip grounding method in the prior art. On the one hand, the stability of the grounding of the wire 11 can be improved, and on the other hand, there is no need to open the mold of the clip, and the assembly is simple, which can reduce costs.
[0043] Please combine Figure 1 and Figure 2 Also see Figure 3 and Figure 4 As shown, Figure 3 A schematic diagram of the structure of a local electronic device from a second angle provided in an embodiment of the present application, Figure 4 for Figure 3 The cross-sectional structure diagram of a part of the electronic device along AA is shown. Exemplarily, the front shell 30 has a second groove 31, and the second groove 31 can be a square groove, a circular groove or a special-shaped groove, which is not specifically limited here.
[0044] The conductive member 40 includes a first sub-conductive member 41 and a second sub-conductive member 42. The conductive member 40 is a split structure, so as to facilitate the connection between the wire 11 and the front shell 30; in other words, the first sub-conductive member 41 and the second sub-conductive member 42 are independently arranged, and the first sub-conductive member 41 and the second sub-conductive member 42 can be adapted with different materials due to their different arrangement positions, so as to improve the stability of the grounding of the wire 11.
[0045] Please combine Figures 1 to 4 Also see Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of an exploded structure of a local electronic device at a first angle provided in an embodiment of the present application, Figure 6 A schematic diagram of the exploded structure of a local electronic device at a second angle provided by an embodiment of the present application. Exemplarily, the first sub-conductive member 41 is arranged in the second groove 31 so as to facilitate contact with the front shell 30, and to facilitate the arrangement of the first sub-conductive member 41 without taking up extra space. For example, the material of the first sub-conductive member 41 can be conductive foam, which refers to a conductive cloth wrapped on a flame-retardant sponge. After a series of treatments, it has good surface conductivity and can be easily fixed on the device to be shielded with adhesive tape. Among them, the conductive cloth is based on fiber cloth, and after pre-treatment, it is electroplated with a metal coating to make it have metal properties and become a conductive fiber cloth. The conductive cloth is suitable for electromagnetic shielding, anti-static and grounding of various electronic devices. The first sub-conductive member 41 uses a conductive foam material, which can have a certain supporting effect, and is not easy to produce wrinkles, which can ensure a good electrical connection effect. In addition, the first sub-conductive member 41 has a good electromagnetic shielding effect, which can prevent interference with the electromagnetic signal of the antenna assembly 10.
[0046] The side of the first sub-conductive member 41 away from the second groove 31 is flush with the side of the front shell 30 different from the second groove 31 to reduce the problem of uneven front shell 30 caused by the first sub-conductive member 41 protruding from the second groove 31.
[0047] Exemplarily, one end of the second sub-conductive member 42 is arranged in the first groove 21 to be electrically connected to the wire 11; the other end of the second sub-conductive member 42 is connected to the first sub-conductive member 41, thereby forming a ground connection to the wire 11. Among them, the second sub-conductive member 42 covers part of the first sub-conductive member 41 to form a stable connection relationship. The second sub-conductive member 42 is a main connecting device, which needs to cross paths of different shapes and extend to part of the first sub-conductive member 41. Therefore, the material of the second sub-conductive member 42 is a flexible conductive material, and the second sub-conductive member 42 is bent to adapt to or match devices of different shapes. For example, the material of the second sub-conductive member 42 is conductive cloth, which is based on fiber cloth. After pre-treatment, it is electroplated with a metal coating to make it have metal properties and become conductive fiber cloth. Conductive cloth is suitable for electromagnetic shielding, anti-static and grounding of various electronic devices. Therefore, the conductive cloth can not only realize the connection between the wire 11 and the metal front shell 30, but also reduce the interference to the electromagnetic signal in the antenna assembly 10.
[0048] It can be understood that only a portion of the electric wire 11 is used for grounding, and therefore, the outer side of this portion of the electric wire 11 can be wrapped with iron sheet to facilitate electrical connection with the second sub-conductive member 42 .
[0049] It can be understood that the second sub-conductive member 42 is a component that connects the wire 11 with the first sub-conductive member 41. Since the wire 11 is arranged in the first groove 21, the second sub-conductive member 42 extends from the first groove 21 toward the first sub-conductive member 41, and since the second sub-conductive member 42 is a flexible conductive material, the shape of the second sub-conductive member 42 is bent or other irregular shapes, mainly to adapt to the shapes of different devices.
[0050] Exemplarily, the middle frame 20 includes a first sub-portion 22 and a second sub-portion 23. The first sub-portion 22 is provided with a first groove 21, and the first sub-portion 22 can be a frame portion of the middle frame 20, that is, a frame forming a circle structure. The first sub-portion 22 has a certain thickness, and the opening direction of the first groove 21 can be toward the direction of the electronic device 1, such as the display screen, so as to facilitate the wire 11 to be directly placed in the first groove 21. The second sub-portion 23 is bent and connected to the first sub-portion 22, and the front shell 30 is covered on the second sub-portion 23, and the second sub-conductive member 42 is located between the front shell 30 and the second sub-portion 23. It can be understood that the second sub-portion 23 is a component extending into the space formed by the middle frame 20 to carry electrical devices, or to facilitate the connection between the middle frame 20 and other devices.
[0051] The material of the middle frame 20 is plastic, which can reduce the weight of the middle frame 20 on the one hand, and reduce the signal interference to the antenna assembly 10 on the other hand.
[0052] In order to fix the second sub-conductive member 42, the front shell 30 is also set to abut against the middle frame 20. For example, the front shell 30 includes a side wall 32 and a bottom wall 33, the side wall 32 and the bottom wall 33 are bent and connected, and the side wall 32 is set corresponding to the first groove 21, and the second groove 31 is located on the bottom wall 33. Among them, the side wall 32 abuts against the side plate surrounding the first groove 21 to fix the second sub-conductive member 42. As a result, the part of the second sub-conductive member 42 located on the bottom wall 33 is covered or abutted by the bottom wall 33, which can play the effect of fixing this part of the second sub-conductive member 42. The part of the second sub-conductive member 42 that is bent and extends into the first groove 21 is abutted and fixed by the end of the side wall 32. The way of fixing the two parts of the second sub-conductive member 42 separately can improve the stability of the fixation compared to the single-point fixation, and reduce the problem of poor electrical connection performance caused by the sliding of the second sub-conductive member 42.
[0053] The embodiment of the present application adopts a solution of sticking conductive cloth, that is, the second sub-conductive component 42, to the side panel of the middle frame 20. The conductive cloth is folded and stuck in the first groove 21 where the wire 11 is placed. The side wall 32 of the front shell 30 is used to make the second sub-conductive component 42 abut against and clamp the iron sheet on the wire 11, so that the wire 11 is effectively in contact with the conductive cloth. The conductive cloth is then extended to the conductive foam area of the metal front shell 30 to achieve a good grounding effect. The grounding problem of the plastic middle frame 20 and the wire 11 is solved, and there is no need to open the mold for the clip. Only conductive cloth and conductive foam are used to solve the grounding problem, which reduces costs. In addition, the conductive cloth is easy to assemble, the assembly process is optimized, and costs are saved.
[0054] In the electronic device 1 provided in the embodiment of the present application, the grounding of the wire 11 adopts a conductive part 40 extending to the metal front shell 30 for grounding, instead of the clip grounding method in the prior art. On the one hand, the stability of the grounding of the wire 11 can be improved, and on the other hand, there is no need to open the mold of the clip, and the assembly is simple, which can reduce costs.
[0055] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0056] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0057] The electronic device provided in the embodiments of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. An electronic device, characterized in that: include: An antenna assembly, comprising a wire, wherein the wire is used to connect a main board and a sub-board of the electronic device; A middle frame having a first groove, wherein the first groove is used to accommodate the wire; The front shell is made of metal material; A conductive member connects the electric wire to the front shell to ground the electric wire through the front shell.
2. The electronic device according to claim 1, characterized in that: The front shell has a second groove; the conductive member includes: A first sub-conductive member is disposed in the second groove; The second sub-conductive member has one end disposed in the first groove to be electrically connected to the electric wire, and the other end connected to the first sub-conductive member.
3. The electronic device according to claim 2, characterized in that: The material of the first sub-conductive element is conductive foam.
4. The electronic device according to claim 2, characterized in that: A side surface of the first sub-conductive element facing away from the second groove is flush with a side surface of the front shell different from the second groove.
5. The electronic device according to claim 2, characterized in that: The material of the second sub-conductive member is a flexible conductive material, and the second sub-conductive member is bent.
6. The electronic device according to claim 5, characterized in that: The material of the second sub-conductive member is conductive cloth.
7. The electronic device according to claim 5, characterized in that: The middle frame includes: A first sub-section, provided with the first groove; The second sub-part is bent and connected to the first sub-part, and the front shell is covered on the second sub-part. The second sub-conductive member is located between the front shell and the second sub-part.
8. The electronic device according to claim 7, characterized in that: The material of the middle frame is plastic.
9. The electronic device according to claim 7, characterized in that: The front shell includes a side wall and a bottom wall, the side wall and the bottom wall are connected by bending, and the side wall is arranged corresponding to the first groove, and the second groove is arranged on the bottom wall.
10. The electronic device according to claim 9, characterized in that: The side wall abuts against the side plate surrounding and forming the first groove to fix the second sub-conductive member.