CN220439886U - Antenna assembly, helmet Bluetooth headset and wireless communication equipment - Google Patents
Antenna assembly, helmet Bluetooth headset and wireless communication equipment Download PDFInfo
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- CN220439886U CN220439886U CN202322367350.9U CN202322367350U CN220439886U CN 220439886 U CN220439886 U CN 220439886U CN 202322367350 U CN202322367350 U CN 202322367350U CN 220439886 U CN220439886 U CN 220439886U
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Abstract
The present disclosure provides an antenna assembly, helmet bluetooth headset and wireless communication device, antenna assembly is applied to helmet bluetooth headset, antenna assembly includes: a main casing and an auxiliary casing; the main shell is a disc-shaped shell, a battery and a first circuit board are arranged in the main shell, and a radio frequency transceiver, a radio frequency front end module and a first antenna module are arranged on the first circuit board; a cavity with an opening at one side is formed in the auxiliary shell; the cavity accommodates a second antenna module, and the second antenna module is in signal connection with the first circuit board; the periphery side of the main shell is provided with a first connecting part, the first connecting part faces to the opening of the auxiliary shell, and the first connecting part is movably connected with the auxiliary shell; the second antenna module extends in the sub-shell in a direction away from the first antenna module.
Description
Technical Field
The application relates to the technical field of communication, in particular to an antenna assembly, a helmet Bluetooth headset and wireless communication equipment.
Background
The user needs to wear a helmet and a helmet Bluetooth headset in the riding sport scene. The helmet Bluetooth headset is applied to a helmet communication system, realizes a multi-person voice intercom function based on a Bluetooth Mesh network technology, provides priority intercom, no handle-off control and other applications for safe riding, and meets intercom conversation requirements of motorcades and individuals in various complex environments of cities, suburban areas, mountain roads and wildlands.
As a wearable device, a helmet bluetooth headset generally needs to interact with a terminal device to achieve a corresponding function, and therefore, a helmet bluetooth headset needs to be provided with multiple frequency band antennas. However, the helmet bluetooth headset is small in size, and in order to improve the product integration level, the product generally adopts an internal antenna, and an external antenna is rarely used.
In the related art, the space inside the helmet bluetooth headset is small, and when the helmet bluetooth headset has two built-in antennas, the isolation between the antennas is a problem that cannot be ignored. In order to improve the isolation of the antenna, the shape of the radiating element of the antenna is changed or the feed grounding position of the antenna is changed, and enough space is required to be occupied for realizing, which is obviously not suitable for being applied to miniaturized wearable electronic products, and the improvement effect of the mode is not obvious. Therefore, how to improve the antenna isolation of the bluetooth headset of the helmet is an important issue to be solved.
Disclosure of Invention
In a first aspect, the present disclosure provides an antenna assembly for use with a helmet bluetooth headset, the antenna assembly comprising: a main casing and an auxiliary casing; the main shell is a disc-shaped shell, a battery and a first circuit board are arranged in the main shell, and a radio frequency transceiver, a radio frequency front end module and a first antenna module are arranged on the first circuit board; a cavity with an opening at one side is formed in the auxiliary shell; the cavity accommodates a second antenna module, and the second antenna module is in signal connection with the first circuit board; the periphery side of the main shell is provided with a first connecting part, the first connecting part faces to the opening of the auxiliary shell, and the first connecting part is movably connected with the auxiliary shell; the second antenna module extends in the sub-shell in a direction away from the first antenna module.
In the above scheme, the first antenna module and the second antenna module are arranged on different carriers, the second antenna module extends on the second circuit board in a direction away from the first antenna module, the distance between the two antenna modules is increased, and space isolation between the two antenna modules is formed. Therefore, the isolation between the two antenna modules in the earphone is improved.
In one implementation, the cavity accommodates a second circuit board, the first circuit board and the second circuit board being in signal connection; the second circuit board is provided with the second antenna module; the first connecting part is provided with a first key, and the auxiliary shell is propped against the first key when rotating along the circumferential direction of the main shell; the first key is connected with the first circuit board or the second circuit board.
In one implementation manner, the first connecting part is provided with a positioning bracket, and the positioning bracket is provided with the second circuit board; the second circuit board is provided with the first key; the auxiliary shell is propped against the first key when rotating along the circumferential direction of the main shell.
In one implementation mode, an adapter is arranged on the inner wall of the auxiliary shell, and the adapter is fixedly connected with the inner wall of the auxiliary shell; the adapter is movably connected with the positioning bracket; when the auxiliary shell rotates along the circumferential direction of the main shell, the adapter piece abuts against the first key.
In one implementation mode, the first connecting part is provided with a positioning bracket, and the positioning bracket is provided with a rotating shaft and a rotating piece; the rotating piece is sleeved on the rotating shaft; a compression spring is arranged between the outer peripheral side of the main shell and the rotating piece; the first deformation end of the pressure spring is abutted against the first key; the second deformation end of the pressure spring is abutted against the movable end of the rotating piece; the stress directions of the first deformation end and the second deformation end are opposite; the movable end of the rotating piece abuts against the first key when the auxiliary shell rotates along the circumferential direction of the main shell.
In a second aspect, the present disclosure provides a helmet bluetooth headset comprising an antenna assembly according to any one of the above.
In a third aspect, the present disclosure provides a wireless communication device, wherein the wireless communication device includes an antenna assembly as described in any one of the above.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is an application scenario diagram of a helmet bluetooth headset provided in an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of an antenna assembly according to an embodiment of the disclosure.
Fig. 3 is a schematic structural diagram of an antenna assembly according to an embodiment of the disclosure.
Fig. 4 is a schematic structural diagram of an antenna assembly according to an embodiment of the disclosure.
Fig. 5 is a schematic structural diagram of an antenna assembly according to an embodiment of the disclosure.
Fig. 6 is a schematic structural diagram of an antenna assembly according to an embodiment of the present disclosure.
Fig. 7 is a schematic structural diagram of an antenna assembly according to an embodiment of the present disclosure.
Fig. 8 is a schematic structural diagram of an antenna assembly according to an embodiment of the present disclosure.
Fig. 9 is a schematic diagram of a helmet bluetooth headset according to an embodiment of the present disclosure.
Reference numerals indicate that the main case 11, the first circuit board 12, the connection portion 13, the first key 14, the positioning bracket 15, the sub-case 21, the second circuit board 22, the rotating member 23, the compression spring 24, the adapter 25, the lever 251, and the second key 221.
Detailed Description
The present utility model will be described in further detail with reference to the following embodiments and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. The exemplary embodiments of the present utility model and the descriptions thereof are used herein to explain the present utility model, but are not intended to limit the utility model.
In the embodiments of the present disclosure, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
Referring to fig. 1, the present disclosure provides an antenna assembly, applied to a helmet bluetooth headset, as a wearable device, the helmet bluetooth headset is worn on a riding helmet, a helmet bluetooth headset A1 is generally required to be connected with a helmet bluetooth headset A2 and a helmet bluetooth headset A3, an ad hoc communication network is established based on bluetooth MESH networking standard and Zigbee antennas, and in practical application, the helmet bluetooth headset A1 is required to be connected with a user mobile phone M1 at the same time. That is, the helmet bluetooth headset needs to be connected to two different types of devices at the same time, in which case at least two separate antennas need to be configured on the helmet bluetooth headset. The bluetooth antenna and the Zigbee antenna have coincident working frequency bands, and electromagnetic induction can cause coupling effect between the antennas, so that isolation of the antennas is reduced.
Bluetooth Mesh is a bluetooth device networking standard officially introduced by the bluetooth special interest group (bluetooth sig) at 2017, 7. The Bluetooth Mesh enables Bluetooth devices in the network to realize 'many-to-many' communication, which greatly increases the communication distance and application scene of Bluetooth and fills the blank of the application field of Bluetooth in large-scale networking. The bluetooth Mesh protocol is established above the physical layer and link layer of BLE and can communicate with bluetooth devices of BLE4.0 and beyond.
Referring to fig. 2 to 6, the present disclosure provides an antenna assembly including: a main casing 11 and a sub-casing 21; the main shell 11 is a disc-shaped shell, a battery and a first circuit board 12 are arranged in the main shell 11, and a radio frequency transceiver, a radio frequency front end module and a first antenna module are arranged on the first circuit board 12; the sub-shell 21 is internally provided with a cavity with an opening at one side; the cavity accommodates a second antenna module which is in signal connection with the first circuit board; the outer periphery of the main shell 11 is provided with a connecting part 13, the connecting part 13 faces the opening of the auxiliary shell 21, and the connecting part 13 is movably connected with the auxiliary shell 21; the second antenna module extends on the second circuit board 22 in a direction away from the first antenna module.
In the above scheme, the first antenna module and the second antenna module are disposed in different housings, the second antenna module extends on the second circuit board 22 in a direction away from the first antenna module, the space between the two antenna modules is increased, and the space isolation between the two antenna modules is formed. Therefore, the isolation between the two antenna modules in the earphone is improved.
Isolation (isolation) is used to quantitatively characterize the degree of coupling between antennas and is defined as the ratio of the input power of one port to the output power of the other. In one system, isolation is typically expressed in logarithmic form, in decibels (dB). The greater the isolation, the less co-channel interference between antennas.
In an example, the first antenna module belongs to any one of the following antennas: NB-IoT antennas, bluetooth antennas, zigbee antennas, GPS antennas, beidou antennas. The second antenna module belongs to any one of the following antennas: NB-IoT antennas, bluetooth antennas, zigbee antennas, GPS antennas, beidou antennas.
In an example, the first antenna module is a bluetooth antenna; the second antenna module is a ZigBee antenna. The Bluetooth antenna and the ZigBee antenna adopt a 2.4G wireless technology; the 2.4G wireless technology is an emerging wireless transmission technology in recent years, and the frequency band is unlicensed and free to be used in most countries, so that the frequency band is widely applied in the wireless field.
In an example, the ZigBee antenna of the helmet bluetooth headset A1 establishes a communication connection with the ZigBee antenna of the helmet bluetooth headset A2, and the bluetooth antenna of the helmet bluetooth headset A1 simultaneously establishes a bluetooth connection with the user mobile phone M1.
The Zigbee antenna is a low-power consumption local area network protocol based on the IEEE802.15.4 standard, belongs to a short-distance and low-power consumption wireless communication technology, and has the working frequency of 2.4GHz. Bluetooth antennas are components used in wireless communication systems to transmit and receive electromagnetic wave energy, and include dipole antennas, PIFA (Planar Inverted F-shaped Antenna) antennas, and ceramic antennas.
In one implementation, the cavity of the sub-housing 21 accommodates a second circuit board 22, the first circuit board 12 and the second circuit board 22 being in signal connection; the second circuit board 22 is provided with a second antenna module; the second antenna module extends on the second circuit board 22 in a direction away from the first antenna module.
In the above scheme, the first antenna module and the second antenna module are disposed on different circuit boards, and the second antenna module extends on the second circuit board 22 in a direction away from the first antenna module, so as to increase the space between the two antenna modules and form the space isolation between the two antenna modules. Therefore, the isolation between the two antenna modules in the earphone is improved.
In one implementation, referring to fig. 5 and 6, the connection portion 13 of the main housing 11 is provided with a first key 14, and the sub-housing 21 presses the first key 14 when rotating in the circumferential direction of the main housing 11; the first key 14 is connected to the first circuit board 12 or the second circuit board 22.
In the example, the connection portion 13 of the main housing 11 is provided with a threading hole through which a transmission line is threaded, and the first circuit board 12 and the second circuit board 22 establish signal connection using the transmission line.
In one implementation, referring to fig. 5 and 6, the connecting portion 13 is provided with a positioning bracket, and the positioning bracket is provided with a rotating shaft and a rotating member 23; the rotating piece 23 is sleeved on the rotating shaft; a compression spring 24 is provided between the outer peripheral side of the main casing 11 and the rotary member 23; the first deformed end of the compression spring 24 abuts the first key 14; the second deformed end of the compression spring 24 is abutted against the movable end of the rotating member 23; the stress directions of the first deformation end and the second deformation end are opposite; the movable end of the rotary member 23 presses the first key 14 when the sub-housing 21 rotates in the circumferential direction of the main housing 11.
In one implementation, referring to fig. 7, the connection portion 13 is provided with a positioning bracket 15, and a second circuit board 22 is provided on a first surface of the positioning bracket 15; a second key 221 is arranged on one side of the second circuit board 22 facing the positioning bracket; the sub-housing 21 presses the second key 221 when rotating in the circumferential direction of the main housing 11.
In one implementation, referring to fig. 8, the connection portion 13 of the main housing 11 is provided with an adaptor 25, the adaptor 25 extends in a direction away from the connection portion 13, and the adaptor 25 and the inner wall of the sub-housing 21 are fixedly connected by adopting an adhesive manner; the second surface of the positioning bracket 15 is provided with an adapter 25; the adapter 25 is movably connected with the positioning bracket 15; the adapter 25 presses the first key 14 when the sub-housing 21 rotates in the circumferential direction of the main housing 11.
In the example, a toggle rod 251 is disposed on a side of the adaptor 25 close to the second circuit board 22, and a second key 221 is disposed on a side of the circuit board 22 facing the adaptor; one side surface of the toggle lever 251 is adjacent to the second key 221. Thus, when the adaptor rotates along the circumferential direction of the main casing, the toggle rod applies pressure to the second key 221, and when the case 14 is in the reset state, one side surface of the toggle rod 251 is close to the second key 221.
Referring to fig. 9, embodiments of the present disclosure provide a helmet bluetooth headset that includes a housing assembly or headset base of any of the above.
The helmet Bluetooth headset provided by the embodiment of the disclosure can be applied to a helmet communication system, adopts the MESH self-organizing network technology, realizes the talkback communication functions of multi-node self-adaption team, self-organizing network voice talkback, network node load balancing, self-adaption environment noise reduction and the like, and is suitable for various outdoor communication scenes such as outdoor riding, rock climbing and skiing, mountain land movement, hiking, water sports and leisure camping.
Referring to fig. 9, the present disclosure provides a wireless communication device, wherein the wireless communication device includes a housing assembly or an earphone base as described in any one of the above.
The above description of various embodiments is intended to emphasize the differences between the various embodiments, which may be the same or similar with reference to each other. The features disclosed in the embodiments of the products provided by the application can be arbitrarily combined under the condition of no conflict, so as to obtain new embodiments of the products.
The above-described product embodiments are merely illustrative, and for example, the division of units is merely a logical function division, and there may be other divisions in actual implementation, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface and the units may be electrically or mechanically coupled or communicatively coupled.
In the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B: the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and in addition, in the description of the embodiments of the present application, "plural" means two or more than two.
In the description of the embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as implying 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 one or more such feature.
The description uses the phrase "in an embodiment" which may refer to one or more of the same or different embodiments. The terms "comprising," "including," "having," and the like, as used with respect to embodiments of the present disclosure, are synonymous. The ordinal adjectives "first", "second", and "third" merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. An antenna assembly for use with a helmet bluetooth headset, the antenna assembly comprising: a main casing and an auxiliary casing; the main shell is a disc-shaped shell, a battery and a first circuit board are arranged in the main shell, and a radio frequency transceiver, a radio frequency front end module and a first antenna module are arranged on the first circuit board;
a cavity with an opening at one side is formed in the auxiliary shell; the cavity accommodates a second antenna module, and the second antenna module is in signal connection with the first circuit board;
the periphery side of the main shell is provided with a first connecting part, the first connecting part faces to the opening of the auxiliary shell, and the first connecting part is movably connected with the auxiliary shell; the second antenna module extends in the sub-shell in a direction away from the first antenna module.
2. The antenna assembly of claim 1, wherein the cavity accommodates a second circuit board, the first circuit board being in signal connection with the second circuit board, the second circuit board having the second antenna module thereon;
the first connecting part is provided with a first key, and the auxiliary shell is propped against the first key when rotating along the circumferential direction of the main shell; the first key is connected with the first circuit board or the second circuit board.
3. The antenna assembly according to claim 2, wherein the first connection portion is provided with a positioning bracket, and the sub-housing is sleeved on the positioning bracket; the second circuit board is arranged on the positioning bracket;
the second circuit board is provided with the first key; the auxiliary shell is propped against the first key when rotating along the circumferential direction of the main shell.
4. An antenna assembly according to claim 3, wherein the inner wall of the sub-housing is provided with an adapter, the adapter being fixedly connected to the inner wall of the sub-housing; the adapter is movably connected with the positioning bracket;
when the auxiliary shell rotates along the circumferential direction of the main shell, the adapter piece abuts against the first key.
5. The antenna assembly according to claim 2, wherein the first connecting portion is provided with a positioning bracket, and the positioning bracket is provided with a rotating shaft and a rotating member; the rotating piece is sleeved on the rotating shaft;
a compression spring is arranged between the outer peripheral side of the main shell and the rotating piece; the first deformation end of the pressure spring is abutted against the first key; the second deformation end of the pressure spring is abutted against the movable end of the rotating piece;
the stress directions of the first deformation end and the second deformation end are opposite; the movable end of the rotating piece abuts against the first key when the auxiliary shell rotates along the circumferential direction of the main shell.
6. The antenna assembly of claim 1, wherein a side edge of the sub-housing is tangential to a periphery of the main housing.
7. A helmet bluetooth headset, characterized in that it comprises an antenna assembly according to any of claims 1-6.
8. A wireless communication device, characterized in that it comprises an antenna assembly according to any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322367350.9U CN220439886U (en) | 2023-08-31 | 2023-08-31 | Antenna assembly, helmet Bluetooth headset and wireless communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322367350.9U CN220439886U (en) | 2023-08-31 | 2023-08-31 | Antenna assembly, helmet Bluetooth headset and wireless communication equipment |
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| CN220439886U true CN220439886U (en) | 2024-02-02 |
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| CN202322367350.9U Active CN220439886U (en) | 2023-08-31 | 2023-08-31 | Antenna assembly, helmet Bluetooth headset and wireless communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117060070A (en) * | 2023-08-31 | 2023-11-14 | 西安蜂语信息科技有限公司 | Antenna assembly, helmet Bluetooth headset and wireless communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117060070A (en) * | 2023-08-31 | 2023-11-14 | 西安蜂语信息科技有限公司 | Antenna assembly, helmet Bluetooth headset and wireless communication equipment |
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