CN113258270B - Integrated antenna and touch component and wireless earphone - Google Patents

Integrated antenna and touch component and wireless earphone Download PDF

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Publication number
CN113258270B
CN113258270B CN202110543614.4A CN202110543614A CN113258270B CN 113258270 B CN113258270 B CN 113258270B CN 202110543614 A CN202110543614 A CN 202110543614A CN 113258270 B CN113258270 B CN 113258270B
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China
Prior art keywords
touch
antenna
module
signal
layer
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CN113258270A (en
Inventor
熊浩辰
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Realme Mobile Telecommunications Shenzhen Co Ltd
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Realme Mobile Telecommunications Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transceivers (AREA)

Abstract

The application provides an integrated antenna and touch component and a wireless earphone, wherein the integrated antenna and touch component comprises a substrate, an antenna module and a touch module, and the substrate comprises a first layer and a second layer which are arranged in a laminated manner; the antenna module comprises an antenna body and an antenna feed structure, wherein the antenna body is arranged on the first layer, the antenna feed structure is electrically connected with the antenna body, and the antenna module is used for receiving and transmitting signals; the touch control module is arranged on the second layer and used for sensing touch control operation. The integrated antenna and the touch component can simultaneously ensure the sensing area of the touch module and the receiving and transmitting performance of the antenna module.

Description

Integrated antenna and touch component and wireless earphone
Technical Field
The application relates to the technical field of intelligent terminals, in particular to an integrated antenna, a touch component and a wireless earphone.
Background
With the development of intelligent terminal technology, wireless headphones are emerging. An antenna module for receiving and transmitting signals and a touch module for sensing touch operation are arranged in the wireless earphone.
At present, the touch module is arranged in an earphone rod of the wireless earphone, and the antenna module is arranged at the periphery of the touch module.
However, in the current setting of the touch module and the antenna module, the sensing area of the touch module and the receiving and transmitting performance of the antenna module cannot be ensured at the same time.
Disclosure of Invention
The embodiment of the application provides an integrated antenna, a touch component and a wireless earphone, which can simultaneously ensure the induction area of a touch module and the receiving and transmitting performance of the antenna module.
An integrated antenna and touch assembly comprising:
a substrate including a first layer and a second layer stacked;
the antenna module comprises an antenna body and an antenna feed structure, wherein the antenna body is arranged on the first layer, the antenna feed structure is electrically connected with the antenna body, and the antenna module is used for receiving and transmitting signals;
and the touch control module is arranged on the second layer and used for sensing touch control operation.
A wireless earphone comprising an earphone stem and further comprising an assembly according to the above;
the assembly is mounted in the cavity of the earphone rod, and the touch module is arranged on one side close to the outside.
The integrated antenna and touch component and the wireless earphone comprise a substrate, wherein the substrate comprises a first layer and a second layer which are stacked; the antenna module comprises an antenna body and an antenna feed structure, wherein the antenna body is arranged on the first layer, the antenna feed structure is electrically connected with the antenna body, and the antenna module is used for receiving and transmitting signals; the touch module is arranged on the second layer and is used for sensing touch operation, because the first layer and the second layer are arranged in a lamination mode, the antenna module and the touch module can be regarded as lamination mode, the antenna module and the touch module are arranged in a lamination mode, the arrangement area of the antenna module and the arrangement area of the touch module can be increased at the same time, the arrangement area of the antenna module can be increased to improve the receiving and transmitting performance of the antenna module, the arrangement area of the touch module can be increased to improve the sensing area, and the simultaneous assurance of the sensing area of the touch module and the receiving and transmitting performance of the antenna module is realized.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic layout diagram of a conventional antenna module and touch module according to an embodiment;
fig. 2 is a schematic structural diagram of an integrated antenna and touch device according to an embodiment;
FIG. 3 is a schematic diagram of another integrated antenna and touch device according to an embodiment;
FIG. 4 is a schematic diagram of another integrated antenna and touch device according to an embodiment;
FIG. 5 is a schematic diagram of another integrated antenna and touch device according to one embodiment;
FIG. 6 is a schematic diagram of another integrated antenna and touch device according to an embodiment;
FIG. 7 is a schematic diagram of another integrated antenna and touch device according to an embodiment;
FIG. 8 is a schematic diagram of a first filter according to an embodiment;
FIG. 9 is a schematic diagram of a second filter according to an embodiment;
fig. 10 is a schematic structural diagram of a wireless earphone according to an embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that the terms first, second, etc. as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, the first filter 131 may be referred to as a second filter, and similarly, the second filter may be referred to as the first filter 131, without departing from the scope of the present application. Both the first filter 131 and the second filter are filters, but they are not the same filter.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
The embodiment of the application provides an integrated antenna and a touch component, which can be applied to a wireless earphone. The wireless earphone includes an antenna module 110 and a touch module 120. The wireless earphone is in wireless connection with the terminal through a wireless network, and under the condition of wireless connection, the wireless earphone interacts radio frequency signals with the terminal through the antenna module 110, so that voice interaction is realized. In addition, the touch module 120 is used for sensing a touch operation of a user, and executing corresponding actions, such as performing actions of cutting songs, answering calls, hanging up calls, and the like, when responding to the touch operation of the user. The wireless earphone further comprises a main control board, wherein the main control board is used for processing signals generated by the wireless earphone, so that various functions of the wireless earphone are realized. Optionally, the signals generated by the wireless earphone include, but are not limited to, the receiving and transmitting signals of the antenna module 110, the sensing signals of the touch module 120, and the like, which are not limited herein. Those skilled in the art will appreciate that the above illustrative wireless headset is not meant to be limiting.
Referring to fig. 1, fig. 1 is a schematic layout diagram of an antenna module 110 and a touch module 120 according to an embodiment. In one embodiment, as shown in fig. 1, the antenna module 110 and the touch module 120 are separately designed. The touch module 120 is disposed at a central position of the earphone bar, so as to sense a touch operation of a user. The antenna module 110 is disposed around the touch module 120 and around the touch module 120. Therefore, if the sensing area of the touch module 120 needs to be adjusted, the arrangement space of the antenna module 110 is likely to be compressed, which may result in poor transceiving performance of the antenna module 110. Similarly, if the transceiving performance of the antenna module 110 needs to be enhanced, the arrangement space of the antenna module 110 needs to be increased, which will affect the arrangement space of the touch module 120, resulting in a smaller sensing area of the touch module 120. Accordingly, in the layout of the conventional antenna module 110 and the touch module 120, the sensing area of the touch module 120 and the receiving and transmitting performance of the antenna module 110 cannot be ensured at the same time. Moreover, the touch module 120 occupies the best wiring area for the antenna module 110, which results in that the antenna module 110 can only be arranged at the periphery, and also results in performance degradation of the antenna module 110.
Therefore, in the limited space of the wireless earphone, because of the design requirements of the touch module 120 and the antenna module 110, the compact space of the earphone is occupied, and if the touch module 120 and the antenna module 110 are separately designed, the space of the wireless earphone is obviously insufficient. Moreover, the wireless earphone is miniaturized, and such demands tend to reduce the sensing area of the touch module 120 and deteriorate the transceiving performance of the antenna module 110. Therefore, the limited space of the wireless earphone must be utilized to the maximum, so that the sensing area of the touch module 120 and the receiving and transmitting performance of the antenna module 110 are ensured in the limited space.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an integrated antenna and a touch device according to an embodiment. In one embodiment, as shown in fig. 2, a front view of an integrated antenna and touch assembly is provided, the assembly including an antenna module 110, a touch module 120, and a substrate 200. Wherein:
the substrate 200 includes a first layer 210 and a second layer 220 that are stacked; the antenna module 110 includes an antenna body 111 and an antenna feed structure 112, the antenna body 111 is disposed on the first layer 210, the antenna feed structure 112 is electrically connected with the antenna body 111, and the antenna module 110 is used for receiving and transmitting signals; the touch module 120 is disposed on the second layer 220, and is used for sensing a touch operation.
Specifically, the antenna feed structure 112 may be regarded as a feed point of the antenna module 110, as a connection point of the feed line and the antenna body 111. In the present embodiment, the antenna body 111 of the antenna module 110 is disposed on the first layer 210, and the touch module 120 is disposed on the second layer 220, and the antenna module 110 and the touch module 120 can be considered as being stacked due to the stacked arrangement of the first layer 210 and the second layer 220. The touch module 120 and the antenna module 110 are stacked, and the touch module 120 and the antenna share one arrangement area, i.e. the arrangement areas of the touch module 120 and the antenna module 110 are multiplexed. During the operation of the assembly, the antenna body 111 of the antenna module 110 interacts with the terminal by radio frequency signals, thereby realizing voice interaction. The touch module 120 senses the touch operation of the user in real time, and performs corresponding actions, such as performing actions of cutting songs, answering calls, hanging up calls, and the like, according to the touch operation.
In this embodiment, since the first layer 210 and the second layer 220 are stacked, the antenna module 110 and the touch module 120 may be considered as stacked, and the antenna module 110 and the touch module 120 are stacked, so that the arrangement area of the antenna module 110 and the arrangement area of the touch module 120 can both be increased at the same time, the arrangement area of the antenna module 110 can be increased to improve the transceiving performance of the antenna module 110, and the arrangement area of the touch module 120 can be increased to improve the sensing area, thereby ensuring the sensing area of the touch module 120 and the transceiving performance of the antenna module 110 at the same time.
The substrate 200 of the present embodiment may be PCBA (Printed Circuit Board Assembly), or may be an FPC (Flexible Printed Circuit, flexible circuit board), and may be provided as needed, which is not limited thereto. Specifically, when the substrate 200 is a PCBA, the antenna body 111 is attached to the first layer 210 by SMT mounting or DIP plugging. Similarly, the touch module 120 may be attached to the second layer 220 by SMT or DIP plug-in. When the substrate 200 is an FPC, the antenna body 111 is disposed on the first layer 210 through the related process of the FPC, and the touch module 120 is disposed on the second layer 220 through the related process of the FPC.
In this embodiment, the sizes of the touch module 120 and the antenna body 111 may be adjusted at will, so as to optimize the performance parameters of the touch module 120 and the antenna module 110, and the sizes of the touch module 120 and the antenna module 110 may be set as required by using the touch module 120 and the antenna module 110 as a laminated structure, and the specific composition of the antenna body 111 and the specific composition of the touch module 120 are not limited.
Specifically, the antenna body 111 is located in the first layer 210, and the area of the first layer 210 can be used to perform line adjustment, so as to optimize the transceiver performance of the antenna module 110.
In one embodiment, the touch module 120 is disposed on a side of the second layer 220 facing away from the first layer 210 or a side of the second layer near the first layer 210. Optionally, the touch module 120 is disposed on the second layer 220 away from the first layer 210.
In one embodiment, the antenna module 110 is disposed on a side of the first layer 210 facing away from the second layer 220 or on a side of the first layer near the second layer 220. Optionally, the antenna module 110 is disposed on a side of the first layer 210 facing away from the second layer 220.
Specifically, by arranging the touch module 120 on the side of the second layer 220 away from the first layer 210 and arranging the antenna module 110 on the side of the first layer 210 away from the second layer 220, the distance between the touch module 120 and the antenna module 110 is as far as possible, so as to reduce the signal mutual interference between the touch module 120 and the antenna module 110.
Referring to fig. 3, fig. 3 is a schematic structural diagram of another integrated antenna and touch device according to an embodiment. In one embodiment, as shown in fig. 3, which provides a front view of another integrated antenna and touch assembly, the substrate 200 further includes a polyimide isolation layer 230, wherein:
a polyimide insulating layer 230 is disposed between the first layer 210 and the second layer 220 for supporting the first layer 210 and the second layer 220.
Polyimide (PI) refers to a polymer with imide ring (-CO-N-CO-) on the main chain, and is one of organic high polymer materials with optimal comprehensive performance. The high temperature resistance reaches more than 400 ℃, the long-term use temperature ranges from-200 ℃ to 300 ℃, part of the high-temperature-resistant insulating material has no obvious melting point, the high-insulation performance, the dielectric constant is 4.0 under 10-3 Hz, the dielectric loss is only 0.004-0.007, and the high-temperature-resistant insulating material belongs to F-H level insulation.
In the present embodiment, by providing the polyimide insulating layer 230 between the first layer 210 and the second layer 220 to support the first layer 210 and the second layer 220, the problem that the first layer 210 and the second layer 220 are too soft to be easily mounted is avoided, and the mounting convenience of the assembly is improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another integrated antenna and touch device according to an embodiment. In one embodiment, as shown in fig. 4, a top view of an integrated antenna and touch module is provided, the touch module 120 includes at least one touch unit 121, wherein an area of a sensing area formed by each touch unit 121 is larger than a predetermined area.
Specifically, the touch module 120 includes at least one touch unit 121, and the number of touch units 121 is one or more than two. Alternatively, if the touch unit 121 is one, the touch module 120 can implement sensing of single touch. For example, if one touch unit 121 senses a touch operation of the user, the wireless earphone performs a function of "start" or "pause"; if a touch unit 121 senses that the user is continuously touching, the wireless earphone performs the function of cutting songs. If the number of the touch units 121 is more than two, the touch module 120 can sense the sliding touch operation. For example, if more than two touch units 121 detect that the user slides from bottom to top, the volume is increased; if more than two touch units 121 detect that the user slides down from top to bottom, the volume is reduced. The execution action of the wireless earphone corresponding to the touch operation is only an example, and may be set according to the need, and the embodiment is not limited specifically.
The size of the preset area is limited by the size of the second layer 220. Generally, the length of the touch module 120 in the first direction needs to be greater than or equal to 10mm (millimeters) to ensure accurate response of the sliding touch operation. Generally, the length of the touch module 120 in the first direction may be set to 12mm by the existing design, but the length of the touch module 120 in the first direction may be set to 16mm by the assembly of the present embodiment. In addition, the length of the touch module 120 in the second direction may also be increased, where the first direction is perpendicular to the second direction, and the length of the first direction is greater than or equal to the length of the second direction.
It can be appreciated that, through the assembly of the present embodiment, the length of the touch module 120 in the first direction and the second direction can be increased, but the length in at least one direction can be selected to be increased according to the requirement, so that the area of the corresponding sensing area can be increased. Therefore, the length of the touch module 120 in the first direction and/or the second direction can be selected to be increased, so as to increase the area of the sensing area of the touch module 120.
In one embodiment, the number of the touch units 121 is two or more, and the two or more touch units 121 are disposed on the second layer 220 at intervals along the first direction.
Specifically, by setting the number of the touch units 121 to two or more, a sliding touch operation of sensing a user can be realized. In addition, more than two touch units 121 are disposed on the second layer 220 at intervals along the first direction, and a longer sensing length can be achieved in the first direction with a smaller number of touch units 121.
It should be noted that the touch unit 121 may include a capacitive touch pad (touch pad). The capacitive touch chip is used for sensing touch operation, and the occupied volume of the touch module 120 is reduced due to the higher integration level of the capacitive touch chip.
Among them, the capacitive touch chip is a new type of chip that has been rapidly developed in recent years. It can penetrate the insulating material shell (glass, plastic, etc.), has no potential safety hazard caused by the direct contact of the traditional metal touching the human body with the metal sheet, and the service life defect of the mechanical contact of the traditional touch key is avoided. The product made by the capacitive touch chip is waterproof, dustproof, reliable, durable, attractive and fashionable, and convenient to produce, install and maintain. The touch pad itself has a distributed capacitance. When a finger or other object approaches the touch pad, the environment (ground) around the touch pad changes, causing its distributed capacitance to change. The change is converted into a frequency signal by a special circuit in the capacitive touch control chip, and then is transmitted to software in the chip for processing, and then corresponding control action is performed.
The touch unit 121 is exemplified by 3. To realize the sensing of the sliding touch operation, 3 touch chips are formed into a touch module 120, and the 3 touch chips are sequentially arranged at intervals, and the total length of the sensing area of the touch module 120 formed by the 3 touch chips in the first rectangular direction is greater than 10mm. By adopting the design of the component of the embodiment, the length of the touch module 120 along the first direction can be greater than 16mm through 3 touch chips, and the effective area of the antenna is not affected. The sensing area of the touch module 120 is ensured, the area of the antenna body 111 is ensured to be maximized, the effective space of the wireless earphone is utilized to the maximum extent, and the performance of the antenna module 110 and the performance of the touch module 120 are maximized.
In one embodiment, the antenna feed structure 112 is disposed on the second layer 220, and the antenna feed structure 112 is spaced apart from the touch module 120.
In the present embodiment, by disposing the antenna feeding structure 112 on the second layer 220 and spaced apart from the touch module 120, signal interference between the antenna module 110 and the touch module 120 can be reduced.
In one embodiment, the assembly further includes a signal output end (not shown in the figure), where the signal output end is connected to the antenna module 110 and the touch module 120, respectively, and the signal output end is configured to output a first signal generated by the antenna module 110 and output a second signal generated by the touch module 120.
The first signal refers to a signal generated by the antenna module 110, and may specifically be a signal transmitted and received by the antenna body 111. The second signal refers to a signal generated by the touch module 120, and may specifically be a signal generated based on a touch operation of a user. Optionally, if the touch unit 121 includes a capacitive touch chip, the second signal is a capacitive signal.
In this embodiment, the first signal generated by the antenna module 110 and the second signal generated by the touch module 120 are output through the signal output end, so that the structure of the assembly is simplified and the occupied volume of the assembly is reduced.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another integrated antenna and touch device according to an embodiment. In one embodiment, as shown in fig. 5, a top view of another integrated antenna and touch assembly is provided, and the antenna module 110 further includes a first signal access point. The first signal access point is used as a signal output end of the antenna module 110 for outputting the first signal. With continued reference to fig. 5, the touch module 120 further includes a second signal access point 122, where the second signal is used as a signal output end of the touch module 120 and is used for outputting the second signal.
Specifically, during the operation of the antenna module 110, the generated first signal is collected through the first signal access point, so as to be output through the first signal access point. Alternatively, the antenna feed structure 112 of the antenna module 110 may be used as the first signal access point. Similarly, during the operation of the touch module 120, the generated second signal is collected by the second signal access point 122, so as to be output through the second signal access point 122.
In this embodiment, the first signal is collected by setting the first signal access point on the antenna module 110, and the second signal is collected by setting the second signal access point 122 on the touch module 120, and because the first signal generated by the antenna module 110 is collected and transmitted through the first signal access point, and the second signal generated by the touch module 120 is collected and transmitted through the second signal access point 122, the first signal and the second signal can avoid mutual interference to a certain extent. In addition, if there are multiple touch units 121, the second signal access point 122 is used to collect the second signals generated by the multiple touch units 121, so as to reduce the occupied volume of the touch module 120.
In one embodiment, the antenna feed structure 112 serves as a first signal access point for the antenna module 110.
Referring to fig. 6, fig. 6 is a schematic structural diagram of another integrated antenna and touch device according to an embodiment. In one embodiment, as shown in fig. 6, the assembly further comprises a filtering unit 130, wherein:
the filtering unit 130 is connected to at least one of the first signal access point and the second signal access point 122, and is configured to filter the first signal in the touch module 120 and/or filter the second signal in the antenna module 110.
In this embodiment, the filtering unit 130 may be configured to filter the first signal in the touch module 120, or configured to filter the second signal in the antenna module 110, or configured to filter the first signal in the touch module 120 and the second signal in the antenna module 110 at the same time.
Specifically, since the antenna module 110 and the touch module 120 are stacked, the arrangement area of the antenna module 110 and the arrangement area of the touch module 120 are multiplexed, so that a signal interference phenomenon between the antenna module 110 and the touch module 120 easily occurs, that is, a first signal generated by the antenna module 110 is coupled to the touch module 120, and a second signal generated by the touch module 120 is coupled to the touch module 120, so that the second signal is an interference signal for the antenna module 110, and the first signal is an interference signal for the touch module 120.
The mutual interference of signals between the antenna module 110 and the touch module 120 affects the inaccuracy of the subsequent signal processing, and therefore the filtering unit 130 is required to filter the signals.
In this embodiment, the interference signal of at least one of the antenna module 110 and the touch module 120 can be filtered as required.
Referring to fig. 7, fig. 7 is a schematic structural diagram of another integrated antenna and touch device according to an embodiment. In one embodiment, as shown in fig. 7, the filtering unit 130 includes a first filter 131 and a second filter 132. Wherein:
the first filter 131 is connected to the first signal access point, and is configured to filter the second signal; the second filter 132 is connected to the second signal access point 122, and is used for filtering the first signal.
In this embodiment, optionally, the first filter 131 may be a filter for filtering signals of a first frequency, and the second filter 132 may be a filter for filtering signals of a second frequency, where the first frequency is smaller than the second frequency.
Specifically, the operating frequency of the antenna module 110 is generally 2.4GHz, and the operating frequency of the touch module 120 is about 200KHz (which can be adjusted as required, and the range is generally 100KHz-400 KHz), so that the operating frequencies of the antenna module 110 and the touch module 120 are different, and no overlapping interval exists. Accordingly, the first filter 131 may be configured to filter out signals having frequencies of 400KHz and below, i.e., the first frequency is any one of 400KHz-2.4 GHz. Similarly, the second filter 132 may be configured to filter out signals having frequencies of 2.4GHz and above, i.e., any frequency having a second frequency of 2.4GHz or above.
Therefore, the first filter 131 is disposed at the antenna module 110, and the first filter 131 can filter the second signal generated by the touch module 120, but the first filter 131 cannot filter the first signal generated by the antenna module 110. Similarly, the second filter 132 is disposed at the touch module 120, so that the second filter 132 can filter the first signal generated by the antenna module 110, and the second filter 132 can not filter the second signal generated by the touch module 120, thereby avoiding signal interference between the touch module 120 and the antenna module 110.
In this embodiment, by setting the first filter 131 and the second filter 132 to avoid signal interference between the touch module 120 and the antenna module 110, normal operation of the touch module 120 and the antenna module 110 can be ensured.
The first filter 131 and the second filter 132 of the present embodiment may be separate devices or may be mounted by discrete devices. If the first filter 131 and the second filter 132 are separate devices, the first filter 131 may be set as a high-pass filter and the second filter 132 may be set as a low-pass filter. Specifically, a high-pass filter, also called a low-cut filter or a low-resistance filter, allows frequencies above a certain cut-off frequency to pass through, and greatly attenuates a filter of a lower frequency. It removes unnecessary low frequency components or low frequency interference from the signal. A low pass filter is an electronic filtering device that allows signals below the cut-off frequency to pass, but signals above the cut-off frequency cannot.
If the first filter 131 and the second filter 132 are built using discrete devices, they can be built using LC principles. LC filters, also known as passive filters, are conventional harmonic compensation devices. LC filters are called passive filters, as the name implies, in that the device does not require additional power. The LC filter is generally formed by properly combining a filter capacitor, a reactor and an inductor, is connected with a harmonic source in parallel, and not only plays a role in filtering, but also meets the requirement of reactive compensation; the LC filter is divided into an LC low-pass filter, an LC band-pass filter, a high-pass filter, an LC all-pass filter and an LC band-stop filter according to functions; the tuning is divided into a single-tuning filter, a double-tuning filter, a triple-tuning filter and the like. The LC filter design flow mainly considers the resonant frequency and the withstand voltage of the capacitor, and the current resistance of the reactor. In the electronic circuit, the inductance coil has a current limiting effect on alternating current, and as can be seen from the inductance formula xl=2pi fL of the inductance, the larger the inductance L, the higher the frequency f, the larger the inductance. Therefore, the inductance coil has the functions of passing low frequency and blocking high frequency, which is the filtering principle of inductance.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a first filter 131 according to an embodiment. In one embodiment, as shown in fig. 8, there is provided a first filter 131 including a first inductance L1, a first capacitance C1, and a second capacitance C2, wherein:
the first capacitor C1 and the second capacitor C2 are connected in series to form a second serial link, one end of the second serial link is connected with the first signal access point, and the other end of the first serial link is used for being connected with a main control board;
one end of the first inductor L1 is grounded, and the other end of the first inductor L1 is connected to the first capacitor C1 and the second capacitor C2 respectively.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a second filter 132 according to an embodiment. In one embodiment, as shown in fig. 9, a second filter 132 is provided, comprising a second inductance L2, a third inductance L3, and a third capacitance C3, wherein:
the second inductor L2 and the third inductor L3 are connected in series to form a first serial link, one end of the first serial link is connected with the second signal access point 122, and the other end of the first serial link is used for being connected with a main control board;
one end of the third capacitor C3 is grounded, and the other end of the third capacitor C3 is connected to the second inductor L2 and the third inductor L3 respectively.
In the present embodiment, the first filter 131 and the second filter 132 are disposed on the component integrating the antenna and the touch. In one embodiment, the first filter 131 and the second filter 132 may be disposed on a motherboard. In addition, one of the first filter 131 and the second filter 132 may be provided on the module, and the other may be provided on the main board, which is not limited herein.
The main control board of this embodiment is used for receiving the signal that the subassembly output to the signal that the subassembly output is handled.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a wireless earphone according to an embodiment. In one embodiment, as shown in fig. 10, there is provided a wireless earphone including an earphone head 1 and an earphone stem 2, wherein:
the earphone head 1 is an audio output part, the cavity of the earphone rod 2 is provided with an integrated antenna, a touch control component 100 and a power supply part, the component 100 can transmit and receive signals and sense touch control operation of a user, and the power supply part can supply power for wireless earphone work. It will be appreciated that the wireless headset may receive audio input via bluetooth or the like, provide energy to the wireless headset operating process via the power supply, and ultimately output audio from the headset 1.
In this embodiment, the integrated antenna and touch assembly 100 may refer to any of the above descriptions of the embodiments, and the description of this embodiment is omitted.
In one embodiment, the touch module 120 is disposed at a side close to the outside.
In one embodiment, the wireless headset further includes a main control board, where the main control board is configured to receive the signal output by the component 100, and thus process the signal output by the component 100.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. An integrated antenna and touch component, which is characterized in that the integrated antenna and touch component is applied to a wireless earphone and comprises:
a substrate including a first layer and a second layer stacked;
the antenna module comprises an antenna body and an antenna feed structure, wherein the antenna body is arranged on the first layer, the antenna feed structure is electrically connected with the antenna body, and the antenna module is used for receiving and transmitting signals;
the touch control module is arranged on the second layer and used for sensing touch control operation;
the antenna feed structure is arranged on the second layer, and the antenna feed structure and the touch module are arranged at intervals.
2. The integrated antenna and touch assembly of claim 1, wherein the touch module is disposed on a side of the second layer facing away from the first layer.
3. The integrated antenna and touch assembly of claim 1, wherein the touch module comprises:
the area of the sensing area formed by the touch units is larger than the preset area.
4. The integrated antenna and touch assembly of claim 3, wherein the number of touch units is two or more, and the two or more touch units are arranged on the second layer at intervals along the first direction.
5. The integrated antenna and touch assembly of claim 1, wherein the substrate further comprises:
and the polyimide isolation layer is arranged between the first layer and the second layer and is used for supporting the first layer and the second layer.
6. The integrated antenna and touch assembly of any of claims 1-5, further comprising a signal output end, wherein the signal output end is connected to the antenna module and the touch module, respectively, and the signal output end is configured to output a first signal generated by the antenna module and output a second signal generated by the touch module.
7. The integrated antenna and touch assembly of claim 6, wherein the antenna module further comprises a first signal access point, the first signal access point being a signal output end of the antenna module for outputting the first signal;
the touch module comprises a second signal access point, and the second signal is used as a signal output end of the touch module and used for outputting the second signal.
8. The integrated antenna and touch assembly of claim 7, further comprising:
and the filtering unit is connected with at least one of the first signal access point and the second signal access point and is used for filtering the first signal in the touch module and/or filtering the second signal in the antenna module.
9. The integrated antenna and touch assembly of claim 8, wherein the filtering unit comprises:
the first filter is connected with the first signal access point and is used for filtering the second signal;
and the second filter is connected with the second signal access point and is used for filtering the first signal.
10. A wireless headset comprising a headset stem, further comprising an integrated antenna and touch assembly according to any of claims 1-9;
the integrated antenna and the touch component are installed in the cavity of the earphone rod, and the touch module is arranged on one side close to the outside.
CN202110543614.4A 2021-05-19 2021-05-19 Integrated antenna and touch component and wireless earphone Active CN113258270B (en)

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TWI805193B (en) * 2022-01-18 2023-06-11 美律實業股份有限公司 Earphone module

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CN110798768A (en) * 2019-10-31 2020-02-14 华为技术有限公司 Wireless earphone
CN112135215A (en) * 2020-10-14 2020-12-25 Oppo广东移动通信有限公司 Audio device and wireless earphone
CN112383316A (en) * 2020-11-20 2021-02-19 歌尔科技有限公司 Touch control and antenna shared circuit and portable communication equipment
CN112684927A (en) * 2019-10-18 2021-04-20 昆山国显光电有限公司 Touch display panel and manufacturing method thereof

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CN112684927A (en) * 2019-10-18 2021-04-20 昆山国显光电有限公司 Touch display panel and manufacturing method thereof
CN110798768A (en) * 2019-10-31 2020-02-14 华为技术有限公司 Wireless earphone
CN112135215A (en) * 2020-10-14 2020-12-25 Oppo广东移动通信有限公司 Audio device and wireless earphone
CN112383316A (en) * 2020-11-20 2021-02-19 歌尔科技有限公司 Touch control and antenna shared circuit and portable communication equipment

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