Bluetooth connection device

Abstract

The utility model discloses a bluetooth connection device, including master control module, golden finger, conversion module, master control module and golden finger connection, master control module and golden finger connection are provided with voltage stabilization module between, the conversion module is connected with master control module, golden finger, voltage stabilization module respectively, the conversion module is connected with the main control module, golden finger, voltage stabilization module respectively, the conversion module is connected with the main control module, the golden finger, the voltage stabilization module, the main control module, the golden finger and the voltage stabilization module. The main control module is used for establishing Bluetooth connection, and the main control module communicates with the golden finger through the conversion module. According to the utility model, the main control module, the golden finger, the conversion module and the voltage stabilizing module arranged between the main control module and the golden finger are adopted to improve the online transmission efficiency, the main control module is used for establishing Bluetooth connection, the main control module communicates with the golden finger through the conversion module, and the conversion module is used for conversion among different voltage signals. And the voltage stabilizing module is used for ensuring that the circuit provides stable voltage, and normal operation of the device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth technology, and in particular to a Bluetooth connection device. Background Technology

[0002] Bluetooth, as a wireless transmission technology, is widely used between smart devices such as mobile phones, headphones, and wearable devices. After the Bluetooth Special Interest Group (Bluetooth SIG) released Bluetooth Low Energy (BLE / LE) connectivity in 2011, the two connectivity methods, Bluetooth Low Energy and Bluetooth Classic (BT), greatly expanded the application scenarios of Bluetooth, enabling its use in an increasing number of devices.

[0003] When Bluetooth devices communicate with each other, the connection speed directly affects the user experience. Currently, the connection transmission efficiency of Bluetooth devices is relatively low. Utility Model Content

[0004] The main purpose of this invention is to propose a Bluetooth connection device, which aims to solve the problem of low transmission efficiency of Bluetooth devices in the prior art.

[0005] To achieve the above objectives, this utility model proposes a Bluetooth connection device, including a main control module, a gold finger, and a conversion module. The main control module is connected to the gold finger, and a voltage regulator module is provided between the main control module and the gold finger. The conversion module is connected to the main control module, the gold finger, and the voltage regulator module respectively. The main control module is used to establish a Bluetooth connection, and the main control module communicates with the gold finger through the conversion module.

[0006] In one embodiment, the voltage regulator module includes a voltage regulator, a first resistor, and a second resistor. The input terminal of the voltage regulator is connected to one end of the first resistor, and the other end of the first resistor and one end of the second resistor are respectively connected to the enable terminal of the voltage regulator. The other end of the second resistor is grounded.

[0007] In one embodiment, the voltage regulator module includes a first capacitor and a second capacitor. One end of the first capacitor and one end of the second capacitor are connected to the input terminal of the voltage regulator, and the other ends of the first capacitor and the second capacitor are both grounded.

[0008] In one embodiment, the voltage regulator module includes a third capacitor and a fourth capacitor. One end of the third capacitor and one end of the second capacitor are connected to the output terminal of the voltage regulator, and the other ends of the third capacitor and the fourth capacitor are both grounded.

[0009] In one embodiment, the voltage regulator module includes a fifth capacitor, one end of which is connected to the BP terminal of the voltage regulator, and the other end of which is grounded.

[0010] In one embodiment, the voltage regulator is model RT9193-18GB.

[0011] In one embodiment, the conversion module includes a converter, a sixth capacitor, and a seventh capacitor. The output enable terminal of the converter is connected to one end of the sixth capacitor, the power supply voltage input terminal of the converter is connected to one end of the seventh capacitor, and the other ends of the sixth capacitor and the seventh capacitor are both grounded.

[0012] In one embodiment, the converter is model number TXB0104RUT.

[0013] In one embodiment, the Bluetooth connection device is connected to a UART interface, and the gold finger is provided with a third resistor and a fourth resistor, which are respectively connected to the UART interface.

[0014] In one embodiment, the Bluetooth connection device is connected to a USB interface, and the gold fingers are provided with a fifth resistor and a sixth resistor, which are respectively connected to the USB interface.

[0015] This invention improves online transmission efficiency by employing a main control module, a gold finger, a conversion module, and a voltage regulator module between the main control module and the gold finger. The main control module is used to establish a Bluetooth connection. The main control module communicates with the gold finger through the conversion module. The conversion module is used to convert between different voltage signals to ensure compatibility with communication between devices in different voltage domains. The voltage regulator module is used to ensure that the circuit provides a stable voltage to guarantee the normal operation of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a Bluetooth connectivity device module.

[0018] Figure 2 Main control module circuit diagram;

[0019] Figure 3 This is the circuit diagram for the gold finger.

[0020] Figure 4 This is the circuit diagram for the conversion module;

[0021] Figure 5 This is the circuit diagram of the voltage regulator module.

[0022] The attached figures are labeled as follows:

[0023] 1-Main control module, 2-Gold finger, 3-Conversion module, 4-Voltage regulator module.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a Bluetooth connection device.

[0029] In the embodiments of this utility model, such as Figure 1 and Figure 2As shown, this Bluetooth connection device includes a main control module 1, a gold finger 2, and a conversion module 3. The main control module 1 is connected to the gold finger 2, and a voltage regulator module 4 is provided between the main control module 1 and the gold finger 2. The conversion module 3 is connected to the main control module 1, the gold finger 2, and the voltage regulator module 4 respectively. The main control module 1 is used to establish a Bluetooth connection, and the main control module 1 communicates with the gold finger 2 through the conversion module 3.

[0030] This invention improves online transmission efficiency by employing a main control module 1, a gold finger 2, a conversion module 3, and a voltage regulator module 4 between the main control module 1 and the gold finger 2. The main control module 1 is used to establish a Bluetooth connection. The main control module 1 communicates with the gold finger 2 through the conversion module 3. The conversion module 3 is used to convert between different voltage signals to ensure compatibility with communication between devices in different voltage domains. The voltage regulator module 4 is used to ensure that the circuit provides a stable voltage to guarantee the normal operation of the device. The connectivity stability in complex environments is significantly better than that of traditional 2.4G solutions, and the online transmission efficiency is higher.

[0031] The main control module 1 is an H383E chip using the low-power Bluetooth 5.2 protocol, supporting connections to various devices. After installation, it can connect to devices without NearLink connectivity, enabling NearLink to be used. NearLink is a new generation of short-range wireless connectivity technology native to China, designed to provide a more efficient and stable connection experience. It features low-power Bluetooth and NearLink low-power access technology for energy saving; supports NearLink connection for quick NearLink interaction and maintains a stable connection at all times; and is compatible with multiple devices: it can be used for Bluetooth protocol upgrades and NearLink connections on laptops, all-in-one PCs, industrial PCs, and other devices.

[0032] like Figure 5 As shown, the voltage regulator module 4 includes a voltage regulator U2, a first resistor R12, and a second resistor R13. The input terminal of the voltage regulator U2 is connected to one end of the first resistor R12. The other end of the first resistor R12 and one end of the second resistor R13 are respectively connected to the enable terminal of the voltage regulator U2. The other end of the second resistor R13 is grounded.

[0033] The first resistor R12 is used to pull the signal line high (usually the power supply voltage), ensuring the signal is high when there is no driving source. The second resistor R13 is used to pull the signal line low (usually ground or 0V), ensuring the signal is low when there is no driving source; the second resistor R13 is connected between the signal line and ground. When the signal source does not provide output, the second resistor R13 pulls the signal line low, preventing a floating state or signal uncertainty.

[0034] The voltage regulator module 4 includes a first capacitor C8 and a second capacitor C9. One end of the first capacitor C8 and one end of the second capacitor C9 are connected to the input terminal of the voltage regulator U2, and the other ends of the first capacitor C8 and the second capacitor C9 are both grounded. The voltage regulator module 4 also includes a third capacitor C11 and a fourth capacitor C12. One end of the third capacitor C11 and one end of the second capacitor C9 are connected to the output terminal of the voltage regulator U2, and the other ends of the third capacitor C11 and the fourth capacitor C12 are both grounded.

[0035] The voltage regulator U2 is model RT9193-18GB. Parallel capacitors are connected at both the input and output terminals of the regulator U2 to improve voltage stability, filter noise, and enhance voltage regulation performance. The first capacitor C8 and the second capacitor C9 at the input terminal primarily filter high-frequency noise from the power supply input, stabilizing the input voltage and preventing instability in the input power supply from affecting the operation of the regulator U2. These capacitors help filter out high-frequency noise, transient voltage fluctuations, or power supply pulsations, ensuring a stable input voltage. If the input power supply is unstable or fluctuates, the first capacitor C8 and the second capacitor C9 reduce these fluctuations by providing short-term current reserves, ensuring more stable operation of the regulator U2. High-frequency noise can affect the output quality of the regulator U2, especially in digital circuits, where noise can lead to system instability. The first capacitor C8 and the second capacitor C9 effectively filter out this noise. Common input capacitor values ​​are typically 0.1μF to 10μF, adjusted according to the operating frequency of the regulator U2 and the characteristics of the power supply. Larger capacitor values ​​are generally used to improve filtering capability.

[0036] The third capacitor C11 and the fourth capacitor C12 at the output end are mainly used to stabilize the output voltage of the voltage regulator module 4, reduce output voltage fluctuations and noise, and enhance voltage stability, especially in response to load changes and transient responses. The output capacitors help smooth the DC voltage output by the voltage regulator U2, eliminating potential ripples and high-frequency noise, ensuring stable output voltage. During the operation of the voltage regulator module 4, the output voltage may fluctuate momentarily due to load changes. The parallel-connected third capacitor C11 and fourth capacitor C12 can provide instantaneous current reserves, thereby reducing voltage fluctuations during sudden load changes and enhancing voltage regulation performance.

[0037] In this embodiment, the capacitor should be selected based on the operating frequency and load characteristics of the voltage regulator U2. An excessively large capacitor may slow down the response time, while an excessively small capacitor may fail to filter effectively.

[0038] The voltage regulator module 4 includes a fifth capacitor C10. One end of the fifth capacitor C10 is connected to the BP terminal of the voltage regulator U2, and the other end of the fifth capacitor C10 is grounded. Connecting a capacitor to the BP terminal of the voltage regulator U2 can improve the performance of the voltage regulator U2, filter high-frequency noise and output ripple, enhance the stability of the voltage regulator U2, improve transient response capability, and suppress the influence of power supply noise.

[0039] like Figure 4 As shown, the conversion module 3 includes a converter U1, a sixth capacitor C6, and a seventh capacitor C7. The output enable terminal of the converter U1 is connected to one end of the sixth capacitor C6, and the power supply voltage input terminal of the converter U1 is connected to one end of the seventh capacitor C7. The other ends of the sixth capacitor C6 and the seventh capacitor C7 are both grounded. The converter U1 is model TXB0104RUT.

[0040] The output enable pin is typically used to control the switching on and off of converter U1. When the output enable pin is activated (high or low level, depending on the chip design), converter U1 starts working; when the output enable pin is disabled, converter U1 stops working.

[0041] The output enable signal may sometimes be affected by noise, especially at high frequencies. Connecting the sixth capacitor C6 to the output enable terminal helps decouple and filter the enable signal, ensuring its stability and preventing false triggering due to power supply noise or other interference signals, resulting in a cleaner and more stable enable signal. The output enable terminal of converter U1 may be subject to momentary interference, especially when the power is turned on or off. The sixth capacitor C6 provides instantaneous energy storage, helping to smooth out voltage changes at the enable terminal, thereby avoiding chip malfunctions or unstable operation caused by sudden signal changes.

[0042] The power supply voltage input pin provides the input voltage to converter U1. The power supply input pin is often affected by high-frequency noise or ripple from power lines or other circuit components, especially when the switching power supply is operating. Connecting the seventh capacitor C7 to the power supply input pin effectively filters out this noise or ripple, providing a smoother, cleaner voltage input and reducing the impact of noise on converter U1's performance. Voltage fluctuations at the power supply input pin directly affect the operational stability of converter U1 and may even lead to output instability. The seventh capacitor C7 helps smooth the input voltage, reduce voltage ripple, and ensure stable operation of converter U1. During sudden load changes, the input voltage may experience short-term fluctuations or drops. The seventh capacitor C7 provides short-term energy reserves to help maintain input voltage stability and prevent converter U1 from becoming unstable or shutting down due to instantaneous voltage drops. The seventh capacitor C7 also helps improve the transient response performance of converter U1 under load or input changes, making the system respond more quickly and accurately to sudden changes.

[0043] like Figure 3 As shown, the Bluetooth connection device is connected to the UART interface, and the gold finger 2 is provided with a third resistor R8 and a fourth resistor R9, which are respectively connected to the UART interface; the Bluetooth connection device is connected to the USB interface, and the gold finger 2 is provided with a fifth resistor R5 and a sixth resistor R6, which are respectively connected to the USB interface.

[0044] The third resistor R8 and the fourth resistor R9 are used for level matching of the data lines (TXD, RXD) of the UART interface. If the voltage of the main control module 1 is different from the voltage of the gold finger 2, the resistors can act as current limiting components to help achieve level conversion and prevent the circuit from being damaged by excessively high or low signal levels.

[0045] The fifth resistor R5 and the sixth resistor R6 are used to limit the current and provide a stable power input. For example, when powered by a USB interface, the resistors may be used to limit the current flowing through the main control module 1 to ensure that the main control module 1 is not damaged due to excessive current.

[0046] It should be noted that the main control module 1 described in this utility model is existing technology, and the improvement of this utility model does not lie in the technology of this module itself.

[0047] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A Bluetooth connection device, characterized in that, Including the host module, the gold finger, the conversion module, the host module is connected with the gold finger, the host module and the gold finger between being provided with voltage stabilizing module, the conversion module is connected with the host module, the gold finger, voltage stabilizing module respectively, the host module is used to establish bluetooth connection, the host module passes through the conversion module and the gold finger communication.

2. The Bluetooth connection apparatus of claim 1, wherein, The voltage stabilizing module includes a voltage stabilizer, a first resistor, a second resistor, the input end of the voltage stabilizer is connected with one end of the first resistor, the other end of the first resistor, one end of the second resistor is connected with the enable end of the voltage stabilizer respectively, the other end of the second resistor is grounded.

3. The Bluetooth connection apparatus of claim 2, wherein, The voltage stabilizing module includes a first capacitor and a second capacitor, one end of the first capacitor and one end of the second capacitor are connected with the input end of the voltage stabilizer, the other end of the first capacitor and the other end of the second capacitor are both grounded.

4. The Bluetooth connection apparatus of claim 3, wherein, The voltage stabilizing module includes a third capacitor and a fourth capacitor, one end of the third capacitor and one end of the second capacitor are connected with the output end of the voltage stabilizer, the other end of the third capacitor and the other end of the fourth capacitor are both grounded.

5. The Bluetooth connection apparatus of claim 2, wherein, The voltage stabilizing module includes a fifth capacitor, one end of the fifth capacitor is connected with the BP end of the voltage stabilizer, the other end of the fifth capacitor is grounded.

6. The Bluetooth connection apparatus of claim 2, wherein, The model of the voltage stabilizer is RT9193-18GB.

7. The Bluetooth connection apparatus of claim 1, wherein, The conversion module is provided with a converter, a sixth capacitor and a seventh capacitor, the output enable end of the converter is connected with one end of the sixth capacitor, the power voltage input end of the converter is connected with one end of the seventh capacitor, the other end of the sixth capacitor and the other end of the seventh capacitor are both grounded.

8. The Bluetooth connection apparatus of claim 7, wherein, The model of the converter is TXB0104RUT.

9. The Bluetooth connection apparatus of claim 1, wherein, The bluetooth connection device is connected with a UART interface, the gold finger is provided with a third resistor and a fourth resistor, the third resistor and the fourth resistor are connected with the UART interface respectively.

10. The Bluetooth connection apparatus of claim 1, wherein, The bluetooth connection device is connected with a USB interface, the gold finger is provided with a fifth resistor and a sixth resistor, the fifth resistor and the sixth resistor are connected with the USB interface respectively.

Images