CN210202045U - Bluetooth headset using battery as antenna - Google Patents
Bluetooth headset using battery as antenna Download PDFInfo
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- CN210202045U CN210202045U CN201921359634.0U CN201921359634U CN210202045U CN 210202045 U CN210202045 U CN 210202045U CN 201921359634 U CN201921359634 U CN 201921359634U CN 210202045 U CN210202045 U CN 210202045U
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Abstract
The utility model discloses an use bluetooth headset of battery as antenna, include: the bluetooth headset body, the bluetooth headset body includes: battery and PCBA mainboard, be equipped with RF wireless reception signal amplifier chip and bluetooth chip on the PCBA mainboard, the battery is rectangular cylindrical, RF wireless reception signal amplifier chip includes 6 pins, is high frequency signal input foot, radio frequency reception foot, ground connection foot, power input foot, radio frequency output foot, control foot respectively. The utility model adopts the RF wireless signal amplifier combined with the battery as the whole to be used as the antenna, and has stronger anti-interference capability and wider adaptability because of the RF wireless signal amplifier; the battery is a device which is necessary to be configured in the Bluetooth headset, and the battery is used as the antenna, so that the antenna does not need to be arranged independently, the product cost is reduced, and the design space of the internal structure of the product is saved; a clearance area does not need to be reserved for the antenna at the PCBA end of the product, and the space of the PCB is saved.
Description
Technical Field
The utility model relates to a bluetooth headset technical field especially relates to an use bluetooth headset of battery as antenna.
Background
In the prior art, only products such as a ceramic antenna, a PCB layout antenna, an LDS antenna, and a coaxial antenna are used as earphone antennas. If the audio horn wire is used as an antenna, the anti-interference performance is poor; if an RF antenna is configured for the Bluetooth headset independently, such as a ceramic antenna, a PCB layout antenna and the like, a larger space needs to be reserved for placing the antenna, and the existing headset product is more and more miniaturized, so that the method cannot meet the design requirement of the product; if the LDS antenna is adopted, the requirement on the forming of the shell is high, a laser etching process needs to be added, and the reliability of assembly is difficult to guarantee.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide an use bluetooth headset of battery as antenna.
The technical scheme of the utility model as follows: the utility model provides a battery is as bluetooth headset of antenna, include: the bluetooth headset body, the bluetooth headset body includes: battery and PCBA mainboard, be equipped with RF wireless received signal amplifier chip and bluetooth chip on the PCBA mainboard, the battery is rectangular cylindrical, RF wireless received signal amplifier chip includes 6 pins, is high frequency signal input foot, radio frequency receiving foot, ground connection foot, power input foot, radio frequency output foot, control foot respectively, high frequency signal input foot and first inductance one end electric connection, the first inductance other end respectively with radio frequency receiving foot, second electric capacity one end electric connection, the second electric capacity other end respectively with the anodal of battery, second inductance one end, third electric capacity other end electric connection, the second inductance other end respectively with VBAT + foot, fourth electric capacity one end electric connection of bluetooth chip, the negative pole of battery respectively with the third electric capacity other end, third inductance one end electric connection, the third inductance other end electric connection, The GND pin of the other end of the fourth capacitor and the Bluetooth chip is grounded, the control pin is electrically connected with the GPIO pin of the Bluetooth chip, the radio frequency output pin is electrically connected with the RF pin of the Bluetooth chip, the power input pin is electrically connected with the power input port and one end of the first capacitor respectively, and the ground pin and the other end of the first capacitor of the RF wireless receiving signal amplifier are grounded.
Further, the model of the RF wireless receiving amplifier chip is RSTCP 001.
Furthermore, a Low Noise Amplifier (LNA) and an output circuit are arranged in the RF wireless receiving amplifier chip, a high-frequency signal input pin is electrically connected with one end of a fifth capacitor, the other end of the fifth capacitor is electrically connected with the input end of the low noise amplifier, the output end of the low noise amplifier is electrically connected with the RF output pin and one end of a fourth inductor respectively, the other end of the fourth inductor is electrically connected with a power input pin, the low noise amplifier is electrically connected with a grounding pin and a control pin of the RF wireless receiving amplifier chip respectively, the RF receiving pin is electrically connected with the RF output pin through the output circuit, and a transmitting switch is arranged in the output circuit.
By adopting the scheme, the utility model discloses a RF wireless signal amplifier combines the battery whole to regard as the antenna application, because there is RF wireless signal amplifier, so the interference killing feature is stronger, and the adaptability is wider; the battery is a device which is necessary to be configured in the Bluetooth headset, and the battery is used as the antenna, so that the antenna does not need to be arranged independently, the product cost is reduced, and the design space of the internal structure of the product is saved; a clearance area does not need to be reserved for the antenna at the PCBA end of the product, and the space of the PCB is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present invention provides a bluetooth headset using a battery as an antenna, including a bluetooth headset body, the bluetooth headset body includes: a battery B1 and a PCBA motherboard, on which an RF wireless receiving signal amplifier chip U1 and a Bluetooth chip U2 are disposed, the battery B1 is in a long cylindrical shape, the RF wireless receiving signal amplifier chip U1 is RSTCP001, which includes 6 pins, respectively a high frequency signal input pin RFIN, a radio frequency receiving pin RFM, a ground pin GND, a power input pin VCC, a radio frequency output pin RFOUT, and a control pin EN, the high frequency signal input pin RFIN is electrically connected to one end of a first inductor L1, the other end of the first inductor L1 is electrically connected to one end of the radio frequency receiving pin RFM and one end of a second capacitor C2, the other end of the second capacitor C2 is electrically connected to an anode BAT +, one end of a second inductor L2, and the other end of a third capacitor C3 of the battery, the other end of the second inductor L2 is electrically connected to one end of a VBAT + pin and a fourth capacitor C4 of the Bluetooth chip U2, the negative electrode BAT-of the battery B1 is electrically connected with the other end of the third capacitor C3 and one end of the third inductor L3 respectively, the other end of the third inductor L3, the other end of the fourth capacitor C4 and a GND pin of the Bluetooth chip U2 are all grounded, the control pin EN is electrically connected with a GPIO pin of the Bluetooth chip U2, the radio frequency output pin RFOUT is electrically connected with an RF pin of the Bluetooth chip U2, the power input pin VCC is electrically connected with a power input port and one end of the first capacitor C1 respectively, and the ground pin of the RF wireless receiving signal amplifier chip U1 and the other end of the first capacitor C1 are both grounded. A low noise amplifier and an output circuit (both not labeled) are arranged in the RF wireless receiving amplifier chip U1, the high-frequency signal input pin RFIN is electrically connected to one end of a fifth capacitor (not labeled), the other end of the fifth capacitor is electrically connected to the input end of the low noise amplifier, the output end of the low noise amplifier is electrically connected to the RF output pin RFOUT and the unmarked end of a fourth inductor respectively, the other end of the fourth inductor is electrically connected to the power input pin VCC, the low noise amplifier is electrically connected to the ground pin GND and the control pin EN of the RF wireless receiving amplifier chip U1 respectively, the RF receiving pin RFM is electrically connected to the RF output pin RFOUT through the output circuit, and a transmit switch is arranged in the output circuit.
Continuing to refer to fig. 1, the battery B1 is used for supplying power to a bluetooth headset and serving as an antenna, the RF wireless signal receiving amplifier chip U1 includes a receiving portion and a transmitting portion, the receiving portion includes the high-frequency signal receiving pin RFIN, a built-in low-noise amplifier, a radio-frequency output pin RFOUT, a power input pin VCC, and a control pin EN, the high-frequency signal receiving pin RFIN is connected to the battery B1 through an external inductor L1 and an external circuit, so as to receive a signal, the signal is processed by the built-in low-noise amplifier and then transmitted to the bluetooth chip U2 through the radio-frequency output pin RFOUT, and the bluetooth chip U2 may further control the switching between receiving and transmitting of a wireless signal through the control pin EN; the transmitting part comprises the radio frequency receiving pin RFM and a transmitting switch, the radio frequency output pin RFOUT is connected with the radio frequency receiving pin RFM through an output circuit, the transmitting switch is arranged on the output circuit, and the radio frequency receiving pin RFM is connected with a battery through an external circuit to form a complete wireless antenna framework and provide radio frequency receiving and signal transmitting functions for the Bluetooth headset.
In summary, the utility model adopts the RF wireless signal amplifier combined with the battery as the whole antenna, and has stronger anti-interference ability and wider adaptability due to the RF wireless signal amplifier; the battery is a device which is necessary to be configured in the Bluetooth headset, and the battery is used as the antenna, so that the antenna does not need to be arranged independently, the product cost is reduced, and the design space of the internal structure of the product is saved; a clearance area does not need to be reserved for the antenna at the PCBA end of the product, and the space of the PCB is saved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A bluetooth headset using a battery as an antenna, comprising: the bluetooth headset body, the bluetooth headset body includes: battery and PCBA mainboard, be equipped with RF wireless received signal amplifier chip and bluetooth chip on the PCBA mainboard, the battery is rectangular cylindrical, RF wireless received signal amplifier chip includes 6 pins, is high frequency signal input foot, radio frequency receiving foot, ground connection foot, power input foot, radio frequency output foot, control foot respectively, high frequency signal input foot and first inductance one end electric connection, the first inductance other end respectively with radio frequency receiving foot, second electric capacity one end electric connection, the second electric capacity other end respectively with the anodal of battery, second inductance one end, third electric capacity other end electric connection, the second inductance other end respectively with VBAT + foot, fourth electric capacity one end electric connection of bluetooth chip, the negative pole of battery respectively with the third electric capacity other end, third inductance one end electric connection, the third inductance other end electric connection, The GND pin of the other end of the fourth capacitor and the Bluetooth chip is grounded, the control pin is electrically connected with the GPIO pin of the Bluetooth chip, the radio frequency output pin is electrically connected with the RF pin of the Bluetooth chip, the power input pin is electrically connected with the power input port and one end of the first capacitor respectively, and the ground pin and the other end of the first capacitor of the RF wireless receiving signal amplifier are grounded.
2. The bluetooth headset using a battery as an antenna according to claim 1, wherein the RF wireless receiving amplifier chip has a model number of RSTCP 001.
3. The bluetooth headset using a battery as an antenna according to claim 1 or 2, wherein a low noise amplifier and an output circuit are disposed in the RF wireless receiving amplifier chip, the high frequency signal input pin is electrically connected to one end of a fifth capacitor, the other end of the fifth capacitor is electrically connected to the input end of the low noise amplifier, the output end of the low noise amplifier is electrically connected to the RF output pin and one end of a fourth inductor, respectively, the other end of the fourth inductor is electrically connected to the power input pin, the low noise amplifier is electrically connected to the ground pin and the control pin of the RF wireless receiving amplifier chip, respectively, the RF receiving pin is electrically connected to the RF output pin through the output circuit, and a transmit switch is disposed in the output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359634.0U CN210202045U (en) | 2019-08-19 | 2019-08-19 | Bluetooth headset using battery as antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359634.0U CN210202045U (en) | 2019-08-19 | 2019-08-19 | Bluetooth headset using battery as antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210202045U true CN210202045U (en) | 2020-03-27 |
Family
ID=69866199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921359634.0U Active CN210202045U (en) | 2019-08-19 | 2019-08-19 | Bluetooth headset using battery as antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210202045U (en) |
-
2019
- 2019-08-19 CN CN201921359634.0U patent/CN210202045U/en active Active
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