A clock spring based on wireless bluetooth transmission

Abstract

The application relates to a clock spring based on wireless Bluetooth transmission and relates to the technical field of clock springs, which comprises a clock spring body, the clock spring body comprises a stator part and a rotor part rotatably connected to the stator part, and a conversion mechanism for converting the kinetic energy of a steering wheel is arranged on the clock spring body. When data transmission is performed, a function module on the steering wheel is pressed by a user, the function module transmits a signal to a data processing module one, the data processing module one transmits data to a wireless data transmission module one after processing the data, the information is transmitted to a wireless data transmission module two through the wireless data transmission module one, and then the information is output through a data processing module two. When the user drives and rotates the steering wheel, the conversion mechanism converts the kinetic energy of the steering wheel rotated by the user into energy required by the vehicle during driving, so that the effect of energy collection and utilization is achieved.

Description

Technical Field

[0001] This application relates to the field of clock spring technology, and in particular to a clock spring based on wireless Bluetooth transmission. Background Technology

[0002] Currently, clock springs are typically installed on the combination switch below the steering wheel or on the column sheet metal of a vehicle. When the steering wheel is rotated, they ensure the normal circuit connection of electrical components such as the airbag and horn switch located in front of the driver.

[0003] Since traffic regulations explicitly prohibit holding hands or making / receiving phone calls while driving, as this can interfere with driving, many multi-function buttons are now integrated into the steering wheel. These buttons allow drivers to make / receive phone calls, switch FM radio channels, and change songs, enabling them to switch songs and radio stations while maintaining a normal driving posture. This improves the driving experience and enhances vehicle safety.

[0004] A clock spring typically contains a stator and a rotor that rotate relative to each other. Multiple turns of flat cable are wound around the stator to transmit electrical signals from the multifunction buttons. When the multifunction buttons transmit information, the flat cable wound inside the clock spring ensures proper circuit connection for electrical components such as the driver's front airbag and horn switch.

[0005] When driving a vehicle, turning the steering wheel is an essential operation. With the frequent turning of the steering wheel, a large amount of kinetic energy is generated. How to utilize this kinetic energy and convert it into the energy required by the vehicle is a problem that needs to be solved. Summary of the Invention

[0006] In order to convert the kinetic energy of the driver turning the steering wheel into the energy required for the vehicle to be driven, this application provides a clock spring based on wireless Bluetooth transmission.

[0007] This application provides a clock spring based on wireless Bluetooth transmission, employing the following technical solution: A clock spring based on wireless Bluetooth transmission includes a clock spring body, which includes a stator and a rotor rotatably connected to the stator. The rotor is detachably connected to a steering wheel shaft. The stator includes a base, on which a PCB board is detachably connected. The PCB board has a data processing module and a wireless data transmission module, which are electrically connected to the data processing module. The rotor includes a cover, on which a second PCB board is detachably connected. The second PCB board has a data processing module and a wireless data transmission module. The first PCB board has a terminal block for connecting to a steering wheel cable, which is electrically connected to the data processing module and the wireless data transmission module. The clock spring body has a conversion mechanism for converting the kinetic energy of the steering wheel.

[0008] By adopting the above technical solution, during installation, the user connects the stator and rotor. After installation, the stator can rotate on the rotor. During data transmission, as the user presses the function module on the steering wheel, the function module transmits the signal to data processing module one. Data processing module one processes the data and then transmits it to wireless data transmission module one. Wireless data transmission module one then transmits the information to wireless data transmission module two, and finally, data processing module two outputs the information. Alternatively, data processing module two can transmit the information to wireless data transmission module one, and then the data is transmitted back to data processing module one, which then outputs the information. Data transmission between the stator and rotor is wireless. When the user turns the steering wheel, the conversion mechanism converts the kinetic energy of the user's steering wheel into the energy required for driving, thus achieving the effect of energy harvesting and utilization.

[0009] Optionally, the rotor includes a cover, the lower end of which is provided with an extension shaft, and a PCB board is mounted on the extension shaft and detachably connected to the cover.

[0010] By adopting the above technical solution, during installation, the user first places the PCB board onto the extension shaft, and then connects the PCB board to the cover. The structure is simple and the assembly is convenient.

[0011] Optionally, the base is provided with several locking buckles, each of which has several locking holes. The base is detachably connected to a housing, and the housing has several connecting protrusions that are adapted to the locking holes at equal intervals around its circumference. Each of the connecting protrusions corresponds to a locking hole. The faceplate is detachably connected to a lever, and a through hole is provided at the center of the base. After the stator and rotor are installed, the lever extends to the outside of the through hole.

[0012] By adopting the above technical solution, when installing the housing, the installation is completed by placing the several connecting protrusions of the housing into the corresponding locking holes. The structure and assembly are simple. When connecting the rotor and stator, the dial block is connected to the cover after passing through the through hole. Then the dial block can rotate in the through hole. The structure is simple and easy to assemble. After the stator and rotor are installed, data transmission can be carried out. There is no need to design a flat cable fixing structure (roller frame), nor is there a need to design a positioning pin or add lubricating oil to the clock spring. The requirements for the processing technology of each component are also low, and the production and application are more convenient.

[0013] Optionally, the second PCB board is provided with a power module that is electrically connected to the second data processing module. The conversion mechanism includes a charging module for charging the power module. The charging module is located on the second PCB board and is electrically connected to the power module.

[0014] By adopting the above technical solution, the power module provides electrical energy to the components on the rotor, and the charging module can convert the kinetic energy of rotating the steering wheel into electrical energy to provide electrical energy to the power module for charging, thereby improving the driving time of the rotor components.

[0015] Optionally, the charging module includes several motion-sensing sensors, all of which are fixedly connected to the rotor and electrically connected to the power supply module.

[0016] By adopting the above technical solution, when the steering wheel is turned, the rotor will rotate, which in turn will drive the motion sensing sensor to rotate. By cutting the magnetic lines of force, the kinetic energy generated by the motion is converted into electrical energy to charge the power module, which can meet the needs of long-term use without the need to replace the power module.

[0017] Optionally, the conversion mechanism includes a rotating gear arranged around the circumference of the lever block, a central transmission gear meshing with the rotating gear and rotatably connected to the base, a large transmission gear being coaxially fixedly connected to the side of the central transmission gear away from the base, a generator being provided on the base, the generator being electrically connected to the power module, a small transmission gear being provided on the generator's rotating shaft, and the small transmission gear meshing with the large transmission gear.

[0018] By adopting the above technical solution, when the user turns the steering wheel, the steering wheel shaft will rotate, which in turn drives the rotor and the shifter to rotate. As the shifter rotates, the rotating gear rotates along with the shifter, which in turn drives the intermediate transmission gear and the large transmission gear to rotate. The large transmission gear drives the small transmission gear to rotate, which in turn drives the generator shaft to rotate and generate electrical energy to charge the power module. This converts the kinetic energy of the driver turning the steering wheel into electrical energy required by the vehicle while driving, thus meeting the long-term use of the power module. The user does not need to replace the power module.

[0019] Optionally, the power module is electrically connected to a short-circuit switch for conducting the detonation current of the airbag. The short-circuit switch is electrically connected to a wireless data transmission module 2. The wireless data transmission module 2 is electrically connected to a current magnitude adjustment module for adjusting the current magnitude to a level sufficient to detonate the airbag. The wireless data transmission module 2 is also electrically connected to a current duration adjustment module for setting the duration of the conducting current.

[0020] By adopting the above technical solution, before leaving the factory, staff can adjust the circuit element parameters in the current duration adjustment module to generate a current pulse with a pulse width equal to the current duration required to detonate the airbag. At the same time, it is also necessary to adjust the circuit element parameters in the current magnitude adjustment module so that the current amplitude is equal to the current magnitude required to detonate the airbag. If a car collision occurs, the short circuit switch is turned on, increasing the circuit current to achieve the effect of quickly detonating the airbag.

[0021] Optionally, both the first wireless data transmission module and the second wireless data transmission module are Bluetooth modules.

[0022] By adopting the above technical solution, data transmission using Bluetooth modules does not require cable deployment, making operation simple, saving manpower and material resources, and reducing costs, thereby simplifying the complexity of previous structural designs; it can also reduce the failure rate of clock springs during use.

[0023] Optionally, both the wireless data transmission module one and the wireless data transmission module two are wireless radio frequency modules.

[0024] By adopting the above technical solution, the wireless radio frequency module has a longer data transmission distance, stronger penetration capability, and higher reliability. It eliminates the need for cable deployment, simplifies the complexity of previous structural designs, and reduces the failure rate of the clock spring during use.

[0025] In summary, this application includes at least one of the following beneficial technical effects: During installation, the user connects the stator and rotor. After installation, the stator can rotate on the rotor. During data transmission, as the user presses the function module on the steering wheel, the function module transmits the signal to data processing module one. Data processing module one processes the data and then transmits it to wireless data transmission module one. Wireless data transmission module one then transmits the information to wireless data transmission module two, and finally, data processing module two outputs the information. Alternatively, data processing module two can transmit the information to wireless data transmission module one, and then back to data processing module one. Data processing module one then outputs the information. Data transmission between the stator and rotor is wireless. When the user turns the steering wheel, the conversion mechanism converts the kinetic energy of the user's steering wheel into the energy required for driving, thus achieving the effect of energy harvesting and utilization. When the user turns the steering wheel, the steering wheel shaft rotates, which in turn drives the rotor and shift lever to rotate. As the shift lever rotates, the rotating gear rotates along with the shift lever, which in turn drives the middle transmission gear and the large transmission gear to rotate. The large transmission gear drives the small transmission gear to rotate, which in turn drives the generator shaft to rotate and generate electrical energy to charge the power module. This converts the kinetic energy of the driver turning the steering wheel into electrical energy required for the vehicle to operate, thus ensuring the long-term use of the power module. The user does not need to replace the power module. Before leaving the factory, staff can adjust the circuit component parameters in the current duration adjustment module to generate a current pulse with a pulse width equal to the current duration required to detonate the airbag. At the same time, the circuit component parameters in the current magnitude adjustment module also need to be adjusted so that the current amplitude is equal to the current magnitude required to detonate the airbag. If a car collision occurs, the short-circuit switch is activated, increasing the circuit current to achieve the effect of quickly detonating the airbag. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1.

[0027] Figure 2 This is a schematic diagram highlighting the stator section.

[0028] Figure 3 This is a schematic diagram highlighting the rotor section.

[0029] Figure 4 This is an exploded diagram highlighting the clock spring.

[0030] Figure 5 This is a schematic diagram highlighting the transmission structure of data processing module one.

[0031] Figure 6This is a schematic diagram highlighting the transmission structure of data processing module two.

[0032] Figure 7 This is a schematic diagram of the overall structure of Embodiment 2.

[0033] Explanation of reference numerals in the attached drawings: 1. Clock spring body; 2. Stator; 21. Base; 211. Locking buckle; 212. Locking hole; 213. Housing; 214. Connecting protrusion; 215. Through hole; 22. PCB board one; 23. Data processing module one; 24. Wireless data transmission module one; 25. Terminal block; 3. Rotor; 31. Cover; 32. PCB board two; 33. Data processing module two; 34. Wireless data transmission module two; 35. Toggle block; 4. Power module; 41. Charging module; 5. Short circuit switch; 51. Current magnitude adjustment module; 52. Current duration adjustment module; 6. Rotating gear; 61. Medium transmission gear; 62. Large transmission gear; 63. Small transmission gear; 64. Generator. Detailed Implementation

[0034] The present application will be further described in detail below with reference to all the accompanying drawings.

[0035] This application discloses a clock spring based on wireless Bluetooth transmission. Example

[0036] Reference Figure 1 and Figure 2 A clock spring based on wireless Bluetooth transmission includes a clock spring body 1. The clock spring body 1 includes a stator part 2 and a rotor part 3 detachably connected to the stator part 2. The clock spring body 1 can be assembled after the stator part 2 and the rotor part 3 are connected.

[0037] Reference Figure 3 and Figure 4 The rotor part 3 includes a cover 31, which is detachably connected to a lever 35 and a second PCB board 32. When assembling the rotor part 3, the cover 31 is first connected to the second PCB board 32. The cover 31 is provided with several fixing buckles for connecting to the second PCB board 32. The second PCB board 32 is provided with several fixing holes that are adapted to the fixing buckles. The lower end of the cover 31 is provided with an extension shaft. The first PCB board 22 is sleeved on the extension shaft and detachably connected to the cover 31. The user aligns the several fixing holes of the second PCB board 32 with the corresponding fixing buckles, and then installs the second PCB board 32 on the cover 31 to complete the fixing of the second PCB board 32.

[0038] Reference Figure 4 and Figure 5The stator part 2 includes a base 21, on which a housing 213 and a PCB board 22 are detachably connected. When assembling the stator part 2, the base 21 is first connected to the PCB board 22. The base 21 is provided with several fixing buckles for connecting to the PCB board 22. The PCB board 22 is provided with several fixing holes that are adapted to the fixing buckles. The user aligns the fixing holes of the PCB board 22 with the corresponding fixing buckles, and then installs the PCB board 22 on the base 21 to complete the fixing of the PCB board 22.

[0039] The base 21 is detachably connected to the housing 213. The base 21 has several locking holes 212. The housing 213 has several connecting protrusions 214 evenly spaced around its circumference. The connecting protrusions 214 correspond one-to-one with the locking holes 212. The lower ends of the connecting protrusions 214 are all inclined. During installation, the user places the housing 213 on top of the base 21 and then pushes the housing 213 toward the base 21, so that the connecting protrusions 214 are all placed into the corresponding locking holes 212, thus completing the connection between the housing 213 and the base 21.

[0040] Then the stator 2 and rotor 3 can be connected. The user places the cover 31 on top of the housing 213. The cover 31 is detachably connected to the lever 35. The base 21 has a through hole 215 at its center. The lever 35 is passed through the through hole 215 and connected to the cover 31. The cover 31 has several locking blocks, and the lever 35 has several locking holes. The locking holes and locking blocks correspond one-to-one. The user moves the lever 35 closer to the cover 31. The locking blocks are placed in the corresponding locking holes. The connection between the cover 31 and the lever 35 is completed at the same time as the connection between the stator 2 and the rotor 3. At this time, the rotor 3 can rotate on the stator 2.

[0041] Reference Figure 4 and Figure 5 The PCB board 22 is equipped with a data processing module 23 and a wireless data transmission module 24. The PCB board 22 is also equipped with a terminal block 25 for connecting to the steering wheel cable. The terminal block 25 and the wireless data transmission module 24 are electrically connected to the data processing module 23. When installing the clock spring body 1, the user can connect the body module or other modules to the terminal block 25. After the user presses the function key on the steering wheel, the function signal can be transmitted to the data processing module 23.

[0042] Reference Figure 4 and Figure 6The second PCB board 32 is equipped with a second data processing module 33 and a second wireless data transmission module 34. The second data transmission module is electrically connected to the second data processing module 33, and the first wireless data transmission module 24 is electrically connected to the second wireless data transmission module 34.

[0043] Reference Figure 5 After receiving the function signal, the data processing module 23 receives the information, performs protocol parsing, packages it using a private protocol, and manipulates the wireless data transmission module 24 to send out the function signal.

[0044] Reference Figure 5 and Figure 6 Since both wireless data transmission module 24 and wireless data transmission module 34 have unique identification codes, they can only receive and process information if the information they send matches their identification codes, even though they are located in the same space. From a structural design perspective, PCB board 22 (refer to...) Figure 2 The wireless data transmission module 24 on the PCB board is 32 meters away from the PCB board (see reference). Figure 3 The wireless data transmission module 2 34 on the device is the closest and has a pre-set identification code. The wireless data transmission module 2 34 will receive the transmitted wireless signal as soon as possible, identify and process it, and then output the information through the output port or the corresponding communication interface. Alternatively, information can be transmitted from data processing module 2 33 to wireless data transmission module 1 24 via wireless data transmission module 2 34, and then the data can be transmitted to data processing module 1 23, which will then output the information.

[0045] Reference Figure 1 and Figure 4 Data transmission between stator 2 and rotor 3 is wireless, eliminating issues such as cable breakage, detachment, positioning problems, and noise caused by friction. It also eliminates the need for a flat cable fixing structure (roller frame) design, as well as the need for designing positioning pins and adding lubricating oil to the clock spring. The processing requirements for each component are also lower, making production and application more convenient.

[0046] Reference Figure 5 and Figure 6 Among them, data processing module 1 23 and data processing module 2 33 can be microcontrollers, which can perform data processing and transmission, and can control other modules.

[0047] Wireless data transmission module 1 24 and wireless data transmission module 2 34 can be Bluetooth modules. Using Bluetooth modules to transmit data eliminates the need for cable deployment, making operation simple, saving manpower and resources, and reducing costs. This simplifies the complexity of previous structural designs and reduces the failure rate of clock springs during use.

[0048] Wireless data transmission module 1 24 and wireless data transmission module 2 34 can be wireless radio frequency modules, specifically SUB1G wireless radio frequency modules. Data transmission between SUB1G wireless radio frequency modules can improve the data transmission distance and signal penetration, thereby improving the data transmission effect.

[0049] Reference Figure 4 and Figure 6 The second PCB board 32 is equipped with a power module 4 that is electrically connected to the second data processing module 33. The conversion mechanism includes a charging module 41 for charging the power module 4. The charging module 41 is located on the second PCB board 32 and is electrically connected to the power module 4. The charging module 41 can be a motion sensing sensor. The motion sensing sensor is fixedly connected to the rotor part 3. Several motion sensing sensors are electrically connected to the power module 4. When the steering wheel is turned, the rotor part 3 will be driven to rotate, thereby driving the motion sensing sensor to rotate. By cutting the magnetic lines of force, the kinetic energy generated by the motion is converted into electrical energy to charge the power module 4. This can meet the requirements of long-term use without the need to replace the power module 4.

[0050] Power module 4 is electrically connected to a short-circuit switch 5 for conducting the airbag detonation current. Short-circuit switch 5 is electrically connected to wireless data transmission module 34. Wireless data transmission module 34 is electrically connected to a current magnitude adjustment module 51 for adjusting the current magnitude to a level sufficient to detonate the airbag. Wireless data transmission module 34 is also electrically connected to a current duration adjustment module 52 for setting the duration of the conducting current. By adjusting the circuit element parameters in current duration adjustment module 52, a current pulse with a pulse width equal to the current duration required to detonate the airbag can be generated. At the same time, the circuit element parameters in current magnitude adjustment module 51 also need to be adjusted so that the current amplitude is equal to the current magnitude required to detonate the airbag. When a car collision occurs, short-circuit switch 5 is activated, increasing the circuit current to quickly detonate the airbag.

[0051] The implementation principle of a clock spring based on wireless Bluetooth transmission in this application embodiment is as follows: After connecting the rotor part 3 and the stator part 2, the user can connect the body module or other modules to the stator part 2. When the user presses the function key module on the steering wheel, the function signal is transmitted to the data processing module 23. Then, the data processing module 23 transmits the function signal to the rotor part 3 through the wireless data transmission module 24. The wireless data transmission module 34 receives the function signal and transmits it to the data processing module 33. Then, the information is output through the output terminal or the corresponding communication interface. The data transmission between the stator part 2 and the rotor part 3 is all wireless. When the user operates the steering wheel to turn, it will drive the rotor part 3 to rotate, thereby driving the motion sensing sensor to rotate. By cutting the magnetic lines of force, the kinetic energy generated by the motion is converted into electrical energy to charge the power module 4. This can meet the needs of long-term use without replacing the power module 4. The kinetic energy of the user turning the steering wheel is converted into electrical energy to charge the power module, thereby achieving the effect of energy collection and utilization. Example

[0052] Reference Figure 7 The difference between Example 2 and Example 1 lies in the different conversion mechanisms.

[0053] Reference Figure 7 The conversion mechanism includes a rotating gear 6 arranged around the circumference of the shift block 35. A middle transmission gear 61 meshes with the rotating gear 6 and is rotatably connected to the base 21. A large transmission gear 62 is coaxially fixed to the side of the middle transmission gear 61 away from the base 21. A generator 64 is provided on the base 21. A small transmission gear 63 is provided on the shaft of the generator 64. The small transmission gear 63 meshes with the large transmission gear 62. When the user turns the steering wheel, the shaft of the steering wheel will rotate, thereby driving the rotor 3 and the shift block 35 to rotate. As the shift block 35 rotates, the rotating gear 6 rotates together with the shift block 35, thereby driving the middle transmission gear 61 and the large transmission gear 62 to rotate. The large transmission gear 62 drives the small transmission gear 63 to rotate, thereby driving the shaft of the generator 64 to rotate and generate electrical energy to charge the power module 4. The kinetic energy of the driver turning the steering wheel is converted into electrical energy required by the vehicle when driving, so as to meet the long-term use of the power module 4. The user does not need to replace the power module 4.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clock spring based on wireless Bluetooth transmission, comprising a clock spring body (1), characterized in that: The clock spring body (1) includes a stator (2) and a rotor (3) rotatably connected to the stator (2). The rotor (3) is detachably connected to the steering wheel shaft. The stator (2) includes a base (21). A PCB board (22) is detachably connected to the base (21). A data processing module (23) is provided on the PCB board (22). A wireless data transmission module (24) is provided on the PCB board (22). The data transmission module is electrically connected to the data processing module (23). The rotor (3) includes a faceplate (31). 1) A PCB board two (32) is detachably connected to the upper part. A data processing module two (33) is provided on the PCB board two (32). A wireless data transmission module two (34) is provided on the PCB board two (32). A wiring terminal (25) for connecting to the steering wheel cable is provided on the PCB board one (22). The wiring terminal (25) is electrically connected to the data processing module one (23). The wireless data transmission module one (24) is electrically connected to the wireless data transmission module two (34). A conversion mechanism for converting the kinetic energy of the steering wheel is provided on the clock spring body (1). The rotor part (3) includes a cover (31), the lower end of the cover (31) is provided with an extension shaft, and a PCB board (22) is sleeved on the extension shaft and detachably connected to the cover (31).

2. The clock spring based on wireless Bluetooth transmission according to claim 1, characterized in that: The base (21) is provided with several locking buckles (211), each locking buckle (211) is provided with several locking holes (212), the base (21) is detachably connected to a housing (213), the housing (213) is provided with several connecting protrusions (214) that are adapted to the locking holes (212) at equal intervals in the circumference, and the several connecting protrusions (214) correspond one-to-one with the locking holes (212), the cover (31) is detachably connected to a lever (35), the center of the base (21) is provided with a through hole (215), after the stator part (2) and the rotor part (3) are installed, the lever (35) extends to the outside of the through hole (215).

3. A clock spring based on wireless Bluetooth transmission according to claim 1, characterized in that: The second PCB board (32) is provided with a power module (4) that is electrically connected to the second data processing module (33). The conversion mechanism includes a charging module (41) for charging the power module (4). The charging module (41) is located on the second PCB board (32) and is electrically connected to the power module (4).

4. A clock spring based on wireless Bluetooth transmission according to claim 3, characterized in that: The charging module (41) includes several motion-sensing sensors, all of which are fixedly connected to the rotor (3) and electrically connected to the power module (4).

5. A clock spring based on wireless Bluetooth transmission according to claim 2, characterized in that: The conversion mechanism includes a rotating gear (6) arranged around the circumference of the lever (35), a middle transmission gear (61) that meshes with the rotating gear (6) is rotatably connected to the base (21), a large transmission gear (62) is coaxially fixedly connected to the side of the middle transmission gear (61) away from the base (21), a generator (64) is provided on the base (21), a small transmission gear (63) is provided on the rotating shaft of the generator (64), and the small transmission gear (63) meshes with the large transmission gear (62).

6. A clock spring based on wireless Bluetooth transmission according to claim 3, characterized in that: The power module (4) is electrically connected to a short-circuit switch (5) for conducting the detonation current of the airbag. The short-circuit switch (5) is electrically connected to the second wireless data transmission module (34). The second wireless data transmission module (34) is electrically connected to a current magnitude adjustment module (51) for adjusting the current magnitude to a level that can detonate the airbag. The second wireless data transmission module (34) is electrically connected to a current duration adjustment module (52) for setting the duration of the conducting current.

7. A clock spring based on wireless Bluetooth transmission according to claim 1, characterized in that: Both the wireless data transmission module one (24) and the wireless data transmission module two (34) are Bluetooth modules.

8. A clock spring based on wireless Bluetooth transmission according to claim 1, characterized in that: Both the wireless data transmission module one (24) and the wireless data transmission module two (34) are wireless radio frequency modules.

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