Electronic devices
By setting conductive parts in electronic devices and optimizing their layout, the current noise problem of speaker modules during calls is solved, the call quality is improved and a more flexible layout design is provided.
Patent Information
- Application Number
- CN202210654944.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-10
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2042-06-10
AI Technical Summary
When an electronic device is talking, the speaker module will experience current noise, and it will not be easily eliminated through audio parameters or filtering circuits, affecting the call quality.
By providing conductive parts in the electronic device, the conductive parts are connected to the circuit board, and through the layout relationship between the first contact, the second contact and the power amplifier, the circuit board is reflowed and signals flow through the speaker module, generating an opposite magnetic field, thereby canceling the magnetic field interference on the speaker module.
It effectively improves the current noise situation of the speaker module during calls, improves the call quality, avoids the generation of current noise, and provides a more flexible component layout design.
Smart Images

Figure CN115037821B_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to an electronic equipment. Background Art
[0002] In the related art, in order to save space and cost of the receiver, the speaker and the receiver are integrated together to form a speaker module. In the related art, when the electronic device is on a call, current noise will appear in the speaker module. When the current of the power amplifier is larger or closer to the speaker module, the current interference noise will be larger, and it is not easy to eliminate through audio parameters or filtering circuits. Therefore, at present, the current interference of the speaker module can only be optimized by keeping the power amplifier away from the speaker module, which reduces the flexibility of the layout of electronic equipment components. Summary of the invention
[0003] The present application aims to provide an electronic device that at least solves one of the problems that current noise will appear in a speaker module of the electronic device when making a call.
[0004] In order to solve the above technical problems, this application is implemented as follows:
[0005] An embodiment of the present application proposes an electronic device, comprising: a circuit board; a power amplifier connected to the circuit board; a battery connector connected to the circuit board; a speaker module connected to the circuit board, wherein the speaker module is arranged above the battery connector along a first direction of the electronic device; a conductive member, wherein a first contact and a second contact are provided on the conductive member, wherein the first contact and the second contact are connected to the circuit board, wherein the second contact is arranged close to the battery connector along the first direction, and wherein the first contact and the second contact are located on both sides of the center of the speaker module along the second direction of the electronic device, wherein the first contact and the power amplifier are arranged on both sides of the center of the speaker module.
[0006] In an embodiment of the present application, an electronic device includes a circuit board and a power amplifier, a battery connector, a speaker module and a conductive member connected to the circuit board. Generally, when the power amplifier is working, there will be a strong alternating current on the circuit board. Since the alternating return current of the ground plane will generate a magnetic field signal radiating outward, and the magnetic field is perpendicular to the coil when passing through the speaker module, a corresponding current noise signal will be generated in the coil of the speaker module, so that current noise will appear in the speaker module. A first contact and a second contact are provided on the conductive member, and the first contact and the second contact are respectively located on both sides of the center of the speaker module, the first contact and the power amplifier are respectively arranged on both sides of the speaker module, and the second contact is arranged near the battery connector, so that the circuit board return signal can flow through the speaker module, generating a magnetic field opposite to the return signal on the circuit board, thereby offsetting the magnetic field interference generated on the speaker module, improving the call quality of the speaker module during calls, and avoiding the generation of current sound.
[0007] The electronic device proposed in the present application improves the current noise of the speaker module by arranging a conductive member so that the conductive member is connected to the circuit board and by the layout relationship between the first contact point, the second contact point and the power amplifier.
[0008] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0010] Figure 1 is one of the partial structural schematic diagrams of an electronic device according to an embodiment of the present invention;
[0011] Figure 2 is a second partial structural schematic diagram of an electronic device according to an embodiment of the present invention;
[0012] Figure 3 is a third partial structural schematic diagram of an electronic device according to an embodiment of the present invention;
[0013] Figure 4 is a fourth schematic diagram of a partial structure of an electronic device according to an embodiment of the present invention;
[0014] Figure 5 is a fifth partial structural diagram of an electronic device according to an embodiment of the present invention;
[0015] Figure 6 is a sixth schematic diagram of a partial structure of an electronic device according to an embodiment of the present invention;
[0016] Figure 7 is a seventh schematic diagram of a partial structure of an electronic device according to an embodiment of the present invention;
[0017] Figure 8 FIG. 8 is a partial structural diagram of an electronic device according to an embodiment of the present invention.
[0018] Reference numerals:
[0019] 10 circuit board, 12 power amplifier, 14 battery connector, 16 speaker module, 160 positive terminal, 162 negative terminal, 164 mounting plate, 166 center vertical line, 18 conductive member, 180 first contact point, 182 second contact point, 184 first conductive part, 186 second conductive part, 190 frame, 192 bracket. DETAILED DESCRIPTION
[0020] Embodiments of the present invention will be described in detail below, examples of which 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 invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0021] The features of 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 addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.
[0022] In the description of the present invention, it is necessary to understand that the terms "center", "height", "width", "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0023] In the description of the present invention, 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 the present invention can be understood according to specific circumstances.
[0024] Combine the following Figures 1 to 8 An electronic device according to an embodiment of the present invention is described.
[0025] like Figures 1 to 8 As shown, an electronic device according to some embodiments of the present invention includes: a circuit board 10; a power amplifier 12 connected to the circuit board 10; a battery connector 14 connected to the circuit board 10; a speaker module 16 connected to the circuit board 10, and the speaker module 16 is arranged above the battery connector 14 along a first direction of the electronic device; a conductive member 18, on which a first contact 180 and a second contact 182 are provided, the first contact 180 and the second contact 182 are connected to the circuit board 10, along the first direction, the second contact 182 is arranged close to the battery connector 14, and along the second direction of the electronic device, the first contact 180 and the second contact 182 are located on both sides of the center of the speaker module 16, wherein the first contact 180 and the power amplifier 12 are arranged on both sides of the center of the speaker module 16.
[0026] In an embodiment of the present application, the electronic device includes a circuit board 10 and a power amplifier 12, a battery connector 14, a speaker module 16 and a conductive member 18 connected to the circuit board 10. Generally, when the power amplifier 12 is working, a strong alternating current will be present on the circuit board 10. The alternating return current of the ground plane will generate an outwardly radiating magnetic field signal, and the magnetic field is perpendicular to the coil when passing through the speaker module 16. This will generate a corresponding current noise signal in the coil of the speaker module 16, so that current noise will appear in the speaker module 16. A first contact 180 and a second contact 182 are provided on the conductive member 18, and the first contact 180 and the second contact 182 are respectively located on both sides of the center of the speaker module 16, the first contact 180 and the power amplifier 12 are respectively arranged on both sides of the speaker module 16, and the second contact 182 is arranged close to the battery connector 14, so that the reflux signal of the circuit board 10 can flow through the speaker module 16, generating a magnetic field opposite to the reflux signal on the circuit board 10, thereby offsetting the magnetic field interference generated on the speaker module 16, improving the call quality of the speaker module 16 during calls, and avoiding the generation of current sound.
[0027] The electronic device proposed in the present application improves the current noise of the speaker module 16 by setting a conductive member 18 so that the conductive member 18 is connected to the circuit board 10 and by the layout relationship between the first contact 180 , the second contact 182 and the power amplifier 12 .
[0028] In a specific application, the vertical line passing through the center of the speaker module 16 is the central vertical line 166 of the speaker module 16, wherein along the second direction of the electronic device, the first contact 180 and the second contact 182 are located on both sides of the central vertical line 166 of the speaker module 16, wherein the first contact 180 and the power amplifier 12 are arranged on both sides of the central vertical line 166 of the speaker module 16.
[0029] It should be noted that the first direction is the height direction of the electronic device, and the second direction is the width direction of the electronic device.
[0030] In specific applications, such as Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown in FIG. 1 , along the second direction, when the power amplifier 12 is arranged on the right side of the speaker module 16, the first contact 180 is arranged on the left side of the speaker module 16, and the second contact 182 is arranged on the right side of the speaker module 16, and the second contact 182 is arranged close to the battery connector 14. When the electronic device is making a call, the return ground signal on the circuit board 10 is as shown in FIG. Figure 4 As shown by the dotted line, the signal flows from the power amplifier 12 to the battery connector 14, and flows from right to left when passing through the speaker module 16. According to Ampere's law, a magnetic field interference signal from top to bottom is generated on the speaker module 16. At this time, the coil of the speaker module 16 will generate an interference current under the interference of the magnetic field, thereby emitting current noise.
[0031] Since the first contact 180 and the second contact 182 are respectively connected to the left side of the speaker module 16 and near the battery connector 14, and since the battery connector 14 is the end point of the return ground signal, the first contact 180 and the second contact 182 form a Figure 4 The flow direction of the return ground signal shown by the solid line, that is, the signal flows from the first contact 180 to the second contact 182, generates a signal flowing from left to right on the speaker module 16. Similarly, according to Ampere's law, a magnetic field signal flowing from bottom to top is generated on the speaker module 16. This magnetic field is opposite to the magnetic field signal on the circuit board 10, so that the two form a cancellation, so that the interference on the speaker module 16 is reduced or eliminated, and the current noise of the speaker module 16 during calls is improved.
[0032] In specific applications, such as Figure 5As shown, along the second direction, when the power amplifier 12 is arranged on the left side of the speaker module 16, the first contact 180 is arranged on the right side of the speaker module 16, the second contact 182 is arranged on the left side of the speaker module 16, and the second contact 182 is arranged close to the battery connector 14. When the electronic device is making a call, the signal flows from the power amplifier 12 to the battery connector 14, and the signal flows from left to right when passing through the speaker module 16. According to Ampere's law, a magnetic field interference signal from bottom to top will be generated on the speaker module 16. At this time, the coil of the speaker module 16 will generate an interference current under the interference of the magnetic field, thereby emitting current noise.
[0033] Since the first contact 180 and the second contact 182 are respectively connected to the right side of the speaker module 16 and near the battery connector 14, and since the battery connector 14 is the end point of the return signal, the signal flows from the first contact 180 to the second contact 182, generating a signal flowing from right to left on the speaker module 16. Similarly, according to Ampere's law, a magnetic field signal flowing from top to bottom is generated on the speaker module 16. This magnetic field is opposite to the magnetic field signal on the circuit board 10, so that the two form a cancellation, so that the interference on the speaker module 16 is reduced or eliminated, and the current noise of the speaker module 16 during calls is improved.
[0034] In some embodiments, Figures 3 to 5 As shown, the conductive member 18 is disposed on the speaker module 16 .
[0035] In this embodiment, the conductive member 18 is disposed on the speaker module 16 so that the conductive member 18 generates a magnetic field opposite to the return ground signal on the circuit board 10, thereby offsetting the magnetic field interference of the coil of the speaker module 16 generated by the return ground signal during a call, improving the current sound of the speaker module 16 during a call, and ensuring the offsetting effect of the conductive member 18 on the noise interference of the speaker module 16.
[0036] It can be understood that the first contact 180 and the second contact 182 are two contacts short-circuited together by the conductive member 18, the speaker module 16 is arranged above the battery connector 14, and the first contact 180 and the power amplifier 12 are arranged on both sides of the center of the speaker module 16, and the second contact 182 is fixed near the battery connector 14 at the lower end of the circuit board 10, thereby ensuring that the return ground signal flows to the battery ground, the end point of the ground signal.
[0037] In one possible design, Figure 3 and Figure 4As shown, along the second direction, when the electronic device is making a 2G call, when the 2G power amplifier 12 is arranged on the right side of the speaker module 16, the first contact 180 is arranged on the left side of the speaker module 16, and the second contact 182 is arranged on the right side of the speaker module 16, and the second contact 182 is arranged close to the battery connector 14, the return ground signal is as shown in FIG. Figure 4 As shown, the return ground signal of the circuit board 10 of the electronic device is shown by the dotted line (flowing from right to left), flowing from the power amplifier 12 to the battery connector 14, and the signal flows from right to left when passing through the speaker module 16. According to Ampere's law, a magnetic field interference signal from top to bottom will be generated on the speaker module 16. At this time, the coil of the speaker module 16 will generate an interference current under the interference of the magnetic field, thereby emitting current noise.
[0038] The newly added first contact 180 and the second contact 182 are connected to the left side of the speaker module 16 and near the battery connector 14 respectively. Since the battery connector 14 is the end point of the return ground signal, the first contact 180 and the second contact 182 form a Figure 4 The flow direction of the return ground signal shown by the solid line, also according to Ampere's law, will generate a magnetic field signal from bottom to top on the speaker module 16. This magnetic field is opposite to the magnetic field signal on the circuit board 10, so that the two form a cancellation, so that the interference on the speaker module 16 is reduced or eliminated, and the current noise of the speaker module 16 during calls is improved.
[0039] In another possible design, Figure 5 As shown, along the second direction, when the power amplifier 12 is arranged on the left side of the speaker module 16, the first contact 180 is arranged on the right side of the speaker module 16, and the second contact 182 is arranged on the left side of the speaker module 16, and the second contact 182 is arranged close to the battery connector 14. Figure 5 As shown, the return ground signal on the circuit board 10 of the electronic device is shown by the dotted line (from left to right). According to Ampere's law, a magnetic field interference signal from bottom to top will be generated on the speaker module 16. At this time, the coil of the speaker module 16 will generate an interference current under the interference of the magnetic field, thereby emitting current noise.
[0040] The newly added first contact 180 and the second contact 182 are connected to the right side of the speaker module 16 and near the battery connector 14 respectively. Since the battery connector 14 is the end point of the return ground signal, the first contact 180 and the second contact 182 on the speaker module 16 will form a Figure 5The return signal flow shown by the solid line, according to Ampere's law, will generate a magnetic field signal from top to bottom on the speaker module 16. This magnetic field is opposite to the magnetic field signal on the circuit board 10, so that the two form a cancellation, so that the interference on the speaker module 16 is reduced or eliminated, and the current noise of the speaker module 16 during calls is improved.
[0041] In some embodiments, the electronic device further includes a frame 190 , and the conductive member 18 is disposed in the frame 190 .
[0042] In this embodiment, the electronic device includes a frame 190, a receiving cavity is provided in the frame 190, a speaker module 16, a battery connector 14, a circuit board 10 and a power amplifier 12 are arranged in the receiving cavity, and a conductive member 18 is arranged on the frame 190, thereby improving the reliability of the conductive member 18.
[0043] In some embodiments, the electronic device further includes a bracket 192 , the bracket 192 supports the circuit board 10 , and the conductive member 18 is disposed on the bracket 192 .
[0044] In this embodiment, the electronic device further includes a bracket 192 , and the bracket 192 is used to support the circuit board 10 . The conductive member 18 is disposed on the bracket 192 , thereby improving the reliability of the installation of the conductive member 18 .
[0045] In a specific application, the bracket 192 is connected to the frame 190 .
[0046] It should be noted that if Figure 8 As shown, a conductive member 18 and two grounding contacts are added to the bracket 192 or the frame 190, and the first contact 180 and the second contact 182 are two contacts short-circuited together by the conductive member 18, wherein, along the first direction of the electronic device, the speaker module 16 is arranged above the battery connector 14, and the first contact 180 and the power amplifier 12 need to be arranged on both sides of the center of the speaker module 16. If the power amplifier 12 is arranged at the exact center of the speaker module 16, there is no special requirement for the setting position of the first contact 180, and the second contact 182 is fixed near the battery ground at the lower end of the circuit board 10, thereby ensuring that the reflux ground signal flows to the battery ground, the end point of the ground signal.
[0047] In one possible design, Figure 6 and Figure 7 As shown, when the electronic device is making a 2G call, when the 2G power amplifier 12 is set to the right of the speaker module 16, the return ground signal is as follows Figure 7As shown, the return signal on the mobile phone circuit board 10 is shown by the dotted line (from right to left), flowing from the power amplifier 12 to the battery ground, and flows from right to left when passing through the lower end of the speaker module 16. According to Ampere's law, a magnetic field interference signal from top to bottom will be generated on the speaker module 16, causing the coil of the speaker module 16 to generate an interference current due to the interference magnetic field, thereby emitting current noise.
[0048] The two newly added first contacts 180 and second contacts 182 are respectively connected to the circuit board 10 position on the left side of the speaker module 16 and near the battery connector 14. Since the battery ground is the end point of the return ground signal, the first contact 180 and the second contact 182 will form a magnetic field, which is opposite to the magnetic field signal on the circuit board 10, so that the two cancel each other out, so that the interference on the speaker module 16 is smaller and eliminated, thereby improving the current noise of the speaker module 16.
[0049] In another possible design, when the electronic device is making a 2G call, when the 2G power amplifier 12 is set on the left side of the speaker module 16, the return signal on the mobile phone circuit board 10 flows from left to right, from the power amplifier 12 to the battery, and flows from left to right when passing through the lower end of the speaker module 16. According to Ampere's law, a magnetic field interference signal is generated from bottom to top on the speaker module 16, causing the coil of the speaker module 16 to generate an interference current due to the interference magnetic field, thereby emitting current noise.
[0050] The two newly added first contacts 180 and second contacts 182 are respectively connected to the circuit board 10 position on the right side of the speaker module 16 and near the battery connector 14. Since the battery ground is the end point of the return ground signal, the first contact 180 and the second contact 182 will form a magnetic field, which is opposite to the magnetic field signal on the circuit board 10, so that the two cancel each other out, so that the interference on the speaker module 16 is smaller and eliminated, thereby improving the current noise of the speaker module 16.
[0051] In some embodiments, Figure 2 As shown, the speaker module 16 includes a positive terminal 160 and a negative terminal 162, and a first contact 180 is connected to the negative terminal 162. Optionally, the first contact 180 can also be connected to the positive terminal 160, and can also be connected to the positive terminal 160 and the negative terminal 162 at the same time. The first contact can be integrated with the positive terminal 160 and the negative terminal 162, and the specific connection method is not specifically limited.
[0052] In this embodiment, the speaker module 16 includes a positive terminal 160 and a negative terminal 162. A signal is input into the speaker module 16 through the positive terminal 160 and the negative terminal 162, so that the speaker module 16 works normally. The first contact 180 and the negative terminal 162 are installed together, which reduces the space occupied by the conductive member 18 as a whole, and also makes the speaker module 16 with the conductive member 18 installed more beautiful as a whole.
[0053] In some embodiments, Figure 2 As shown, the speaker module 16 includes a mounting plate 164 , on which the positive terminal 160 , the negative terminal 162 and the first contact 180 are all disposed.
[0054] In this embodiment, the speaker module 16 includes a mounting plate 164, and the positive terminal 160, the negative terminal 162 and the first contact 180 are all arranged on the mounting plate 164, so that the positive terminal 160, the negative terminal 162 and the first contact 180 are integrated on the mounting plate 164, thereby improving the overall aesthetics of the speaker module 16, and ensuring that the first contact 180 can be set on one side of the speaker module 16, thereby ensuring the improvement effect of the current interference of the speaker module 16.
[0055] In some embodiments, the conductive member 18 includes a first conductive portion 184 and a second conductive portion 186 connected to each other, the first conductive portion 184 is arranged along the second direction, the second conductive portion 186 is arranged along the first direction, the first contact 180 is arranged on the first conductive portion 184, and the second contact 182 is arranged on the second conductive portion 186.
[0056] In this embodiment, the conductive member 18 includes a first conductive portion 184 and a second conductive portion 186, wherein the first conductive portion 184 is connected to the second conductive portion 186, and the first conductive portion 184 is arranged along the second direction, so that when the signal passes through the first conductive portion 184, it can offset the magnetic field formed by the circuit board 10 on the speaker module 16, and the second conductive portion 186 is arranged along the first direction, so that the signal eventually flows to the battery ground where the battery connector 14 is located. Among them, the first contact 180 is arranged on the first conductive portion 184, and the second contact 182 is arranged on the second conductive portion 186, and the first contact 180 and the second contact 182 are short-circuited together by connecting the first conductive portion 184 and the second conductive portion 186.
[0057] In a specific application, the first conductive portion 184 and the second conductive portion 186 are an integrated structure.
[0058] In some embodiments, the first conductive portion 184 and the second conductive portion 186 are disposed on a side of the speaker module 16 facing the battery connector 14 .
[0059] In this embodiment, the first conductive portion 184 and the second conductive portion 186 are arranged on the side of the speaker module 16 facing the battery connector 14, so that the first conductive portion 184 and the second conductive portion 186 are connected to the circuit board 10, thereby causing the conductive member 18 to generate a magnetic field that is opposite to the magnetic field signal of the circuit board 10, forming a cancellation.
[0060] In some embodiments, the conductive member 18 includes any one of the following: a flexible printed circuit board 10, a steel plate.
[0061] In this embodiment, the conductive member 18 includes a flexible circuit board 10 or a steel plate. The flexible circuit board 10 and the steel plate are connected to the circuit board 10, and can generate a magnetic field opposite to the return signal on the circuit board 10, thereby offsetting the magnetic field interference generated by the return signal on the coil of the speaker module 16 during a call.
[0062] In some embodiments, the speaker module 16 includes: a mounting portion; a speaker, disposed at the mounting portion and connected to the circuit board 10 ; and a receiver, disposed at the mounting portion and connected to the circuit board 10 .
[0063] In this embodiment, the speaker module 16 includes a mounting portion and a speaker and a receiver disposed on the mounting portion, that is, the speaker and the receiver are integrated together, thereby saving the space and cost occupied by the receiver.
[0064] It is understandable, but the characteristics of speakers and receivers are not the same. The speaker has a larger internal coil, a larger working power (about 1W), and a higher sensitivity, so it can produce a louder sound, but it is also more sensitive to noise and interference. Since the receiver works close to the human ear, its internal coil is smaller, and the working power is smaller (about 50mW), so it cannot produce a loud sound, but it has better performance in noise and anti-interference.
[0065] In electronic devices using a speaker module 16 that integrates a speaker and a receiver, when making calls, due to the large current loop of the 2G power amplifier 12 (including 4G / 5G power amplifier 12) and the GSMTDMA (Global System for Mobile Communications Time Division Multiple Access) noise characteristics, there will be a strong 217Hz alternating current on the entire circuit board 10. At this time, due to the alternating return current of the ground plane, a magnetic field signal radiating outward will be generated, and the magnetic field is perpendicular to the coil when passing through the coil part of the speaker module 16. This will generate a corresponding current noise signal in the coil of the speaker module 16, so that the speaker module 16 will have current noise when used as a receiver. When the current of the 2G power amplifier 12 is larger or closer to the speaker module 16, the current interference noise is larger, and it is not easy to eliminate it through audio parameters or filter circuits (because the 217Hz frequency is a normal voice frequency and cannot be eliminated by designing a filter). Therefore, at present, the current interference of the speaker module 16 can only be optimized by making the 2G power amplifier 12 away from the speaker module 16 in terms of layout, and there is no particularly effective solution. The technical solution proposed in this application, by setting a conductive member 18 on the speaker module 16, allows the return signal of the circuit board 10 to flow through the speaker module 16, generating a magnetic field opposite to the return signal on the circuit board 10, thereby offsetting the magnetic field interference generated by the return signal on the coil of the speaker module 16 during a call, and improving the current sound of the speaker module 16 during a call (including 2G / 4G / 5G calls). The corresponding conductive member 18 can also be designed on the bracket 192 or the frame 190 to generate a magnetic field opposite to the return signal on the circuit board 10, thereby offsetting the magnetic field interference generated by the return signal on the coil of the speaker module 16 during a call, and improving the current sound of the speaker during a call. This application can fundamentally eliminate the current interference noise of the upper speaker module 16, and does not limit the layout of the 2G power amplifier 12 or the 4G power amplifier 12, 5G power amplifier 12, so that the layout design of the electronic device has greater flexibility.
[0066] In some embodiments, the first direction and the second direction are perpendicular.
[0067] In this embodiment, the first direction is perpendicular to the second direction. Specifically, the first direction is the height direction of the electronic device, and the second direction is the width direction of the electronic device.
[0068] Specifically, the electronic device may be a smart phone, a tablet computer, an e-reader, a wearable device, etc., which are not listed here one by one.
[0069] 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 invention. 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.
[0070] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An electronic device, characterized in that: include: Circuit boards; A power amplifier connected to the circuit board; A battery connector connected to the circuit board; A speaker module connected to the circuit board, and arranged above the battery connector along a first direction of the electronic device; A conductive member, wherein a first contact and a second contact are provided on the conductive member, wherein the first contact and the second contact are connected to the circuit board, wherein along the first direction, the second contact is arranged close to the battery connector, and along the second direction of the electronic device, the first contact and the second contact are located on both sides of the center of the speaker module, Wherein, the first contact and the power amplifier are arranged on both sides of the center of the speaker module.
2. The electronic device according to claim 1, characterized in that: The conductive element is arranged on the speaker module.
3. The electronic device according to claim 1, characterized in that: Also includes: The conductive member is arranged on the frame.
4. The electronic device according to claim 1, characterized in that: Also includes: A bracket supports the circuit board, and the conductive member is arranged on the bracket.
5. The electronic device according to claim 2, characterized in that: The speaker module includes a positive terminal and a negative terminal, and the first contact is connected to the positive terminal and / or the negative terminal.
6. The electronic device according to claim 5, characterized in that: The speaker module comprises: A mounting plate, wherein the positive terminal, the negative terminal and the first contact are all arranged on the mounting plate.
7. The electronic device according to any one of claims 1 to 6, characterized in that: The conductive member includes a first conductive portion and a second conductive portion connected to each other, the first conductive portion is arranged along the second direction, the second conductive portion is arranged along the first direction, the first contact point is arranged on the first conductive portion, and the second contact point is arranged on the second conductive portion.
8. The electronic device according to claim 7, characterized in that: The first conductive portion and the second conductive portion are arranged on a side of the speaker module facing the battery connector.
9. The electronic device according to any one of claims 1 to 6, characterized in that: The conductive member includes any one of the following: a flexible circuit board, a steel plate.
10. The electronic device according to any one of claims 1 to 6, characterized in that: The first direction and the second direction are perpendicular to each other.
Citation Information
Patent Citations
Loudspeaker and mobile communication terminal with the loudspeaker
CN101677421A
Speaker module
CN108848437A