A signal line customizable length of power-assisted bicycle torque sensor

Abstract

The utility model discloses a kind of signal line self-defined length's power-assisted bicycle torque sensor, by torque sensor body, rotating elastomer, signal line and connecting plug constitute.Rotating elastomer passes through inner and outer spline transmission torque, and the positioning protrusion of torque sensor body guarantees installation accuracy;The unique structure of connecting plug is matched with tailor flat signal line, realize line length free adjustment and signal stable transmission.Working, bicycle main shaft rotation drives rotating elastomer deformation, and torque sensor body converts it into electric signal.After user tailors signal line, using the plug-in needle of connecting plug, hinged cover plate and connecting screw complete firm connection, signal transmission to power-assisted system.

Description

Technical Field

[0001] This utility model relates to the field of torque sensor technology, specifically to a power-assisted bicycle torque sensor with a customizable signal line length. Background Technology

[0002] In the operation of power-assisted bicycles, torque sensors play a crucial role. They monitor torque changes in real time, providing accurate data support for the power assist system to achieve appropriate power output. However, existing power-assisted bicycle torque sensors have some problems. One issue is the fixed length of the signal cable. In actual installation and use, if the cable is too long, it occupies a lot of space, affecting the aesthetics of the bicycle's internal layout. Furthermore, the excessively long cable may become tangled or pulled during riding, damaging the signal cable and affecting the normal operation of the torque sensor. Conversely, if the cable is too short, it cannot meet the needs of different installation scenarios, causing significant inconvenience in installation and use.

[0003] Therefore, it is of great significance to provide a torque sensor for power-assisted bicycles with a customizable signal line length to solve the problems existing in the current technology. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a power-assisted bicycle torque sensor with a customizable signal line length to solve the problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A torque sensor for power-assisted bicycles with a customizable signal cable length includes a torque sensor body, a rotating elastic body, a signal cable, and a connector. The rotating elastic body is rotatably connected to the torque sensor body, and the torque sensor body is electrically connected to the connector via the signal cable.

[0007] The rotating elastomer has an internal through-hole for the bicycle spindle, with internal and external splines at both ends. This design facilitates connection and transmission between the rotating elastomer and the bicycle spindle and other components, accurately transmitting the torque generated during cycling to the torque sensor body for detection. The torque sensor body has three positioning protrusions on its side, which provide precise positioning during installation, ensuring the accuracy and stability of the torque sensor body's installation.

[0008] The connector includes a hinged cover, a connecting part, a plug part, and plug pins. The connecting part and the plug part are integrally formed, with a connecting groove in the middle of the connecting part. The hinged cover is hinged to the connecting groove, and the plug pin is installed in the connecting groove. The bottom of the hinged cover has locking teeth. This connector design is a key component for enabling customizable signal cable length. When the signal cable length needs to be adjusted, the user can shorten the signal cable as needed and insert it into the connecting groove. At this time, the three plug pins are electrically connected to the signal cable's connecting wire. Then, the hinged cover is closed, and the locking teeth hold the top of the cable to achieve cable connection. The cover is then fixed with screws to complete the connector installation, effectively avoiding the problem of excessively long connecting cables taking up space.

[0009] Furthermore, the connector has three pins arranged in a straight line at equal intervals, with tapered ends. This design facilitates smoother connection of the pins to the signal cable, improving connection stability and reliability, and ensuring accurate signal transmission.

[0010] The hinged cover plate has fixing ears on both sides, and the top of the connecting part has fixing ear grooves on both sides. The fixing ear grooves and fixing ears are fixedly connected by connecting screws. This fixing method ensures that the hinged cover plate is firmly fixed to the connecting part after installation, preventing the connecting plug from loosening due to vibration or other factors during use, which would affect the normal operation of the torque sensor.

[0011] Furthermore, the signal cable is a flat cable with three parallel connecting wires inside, all covered by an insulating layer and arranged in a straight line. This flat cable design not only facilitates wiring inside the bicycle, saving space, but the three parallel connecting wires, combined with the connector pins, enable more efficient signal transmission. The insulating layer ensures safety and stability during signal transmission.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This invention, through its customizable signal cable design, can meet the signal cable length requirements of different installation scenarios, improving the applicability and flexibility of the torque sensor. Users can freely adjust the signal cable length according to the actual installation situation, avoiding installation inconvenience and usage problems caused by excessively long or short signal cables.

[0014] 2. The special structural design of the connector plug allows for convenient, quick, and secure connection of the signal cable after length adjustment. The dual fixing method of locking teeth and connecting screws ensures connection reliability, effectively preventing signal transmission instability or interruption caused by loose signal cables, thus improving the stability and reliability of the torque sensor.

[0015] 3. The internal and external splines of the rotating elastomer and the positioning protrusions of the torque sensor body ensure the accuracy and stability of the torque sensor installation on the bicycle. This enables more precise detection of torque changes during bicycle riding, providing accurate data support for the power assist system and improving the riding experience and performance of the power-assisted bicycle.

[0016] 4. The signal cable adopts a flat cable design with a specific arrangement of internal connecting wires, which saves wiring space inside the bicycle, while improving the efficiency and stability of signal transmission and ensuring the normal operation of the torque sensor.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0018] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural diagram of the connector plug in this utility model;

[0022] Figure 3 This is an enlarged view of section A of this utility model.

[0023] In the diagram: 1. Torque sensor body; 2. Rotary elastic body; 3. Internal spline; 4. External spline; 5. Positioning protrusion; 6. Signal line; 7. Connecting plug; 71. Hinge cover; 72. Insertion part; 73. Connecting screw; 74. Connecting part; 75. Connecting groove; 76. Insertion pin; 77. Fixing ear groove; 78. Snap-fit ​​teeth; 79. Fixing ear. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0025] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0026] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0027] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0028] Please see Figure 1-3 This utility model provides a technical solution for a torque sensor for power-assisted bicycles with a customizable signal cable length: it includes a torque sensor body 1, a rotating elastic body 2, a signal cable 6, and a connector 7. The rotating elastic body 2 is rotatably connected to the torque sensor body 1, and the torque sensor body 1 is electrically connected to the connector 7 via the signal cable 6.

[0029] The rotating elastomer 2 has a through hole for the bicycle spindle inside, and internal splines 3 and external splines 4 are respectively provided at both ends. This structural design facilitates the connection and transmission between the rotating elastomer 2 and the bicycle spindle and other components, and can accurately transmit the torque during bicycle riding to the torque sensor body 1 for detection. The torque sensor body 1 has three positioning protrusions 5 on its side. The positioning protrusions 5 play a role in precise positioning during installation, ensuring the accuracy and stability of the installation of the torque sensor body 1.

[0030] The connector 7 includes a hinged cover plate 71, a connecting part 74, a plug part 72, and plug pins 76. The connecting part 74 and the plug part 72 are integrally formed. A connecting groove 75 is formed in the middle of the connecting part 74. The hinged cover plate 71 is hinged to the connecting groove 75. The plug pins 76 are installed in the connecting groove 75. The bottom end of the hinged cover plate 71 is provided with locking teeth 78. This design of the connector 7 is a key component for realizing the customization of the signal line length. When it is necessary to adjust the signal line length, the user can shorten the signal line 6 according to the actual needs and insert it into the connecting groove 75. At this time, the three plug pins 76 are electrically connected to the connecting wire of the signal line 6. Then, the hinged cover plate 71 is closed, and the locking teeth 78 lock the top of the wire to realize the wire connection. The cover plate is fixed with screws to complete the installation of the connector 7, effectively avoiding the problem of the connecting wire taking up too much space.

[0031] Furthermore, there are three connector pins 76, which are arranged in a straight line at equal intervals and have tapered ends. This design helps the connector pins 76 to connect more smoothly to the signal line 6, improving the stability and reliability of the connection and ensuring the accuracy of signal transmission.

[0032] The hinged cover plate 71 has fixing ears 79 on both sides, and the top of the connecting part 74 has fixing ear grooves 77 on both sides. The fixing ear grooves 77 and fixing ears 79 are fixedly connected by connecting screws 73. This fixing method ensures that the hinged cover plate 71 is firmly fixed to the connecting part 74 after installation, preventing the connecting plug 7 from loosening due to vibration or other factors during use, which would affect the normal operation of the torque sensor.

[0033] Furthermore, the signal line 6 is a flat cable with three parallel connecting wires inside. These three connecting wires are covered with an insulating layer and arranged in a straight line. The flat cable design not only facilitates wiring inside the bicycle and saves space, but also allows for more efficient signal transmission through the three parallel connecting wires working in conjunction with the pins 76 of the connector 7. The insulating layer ensures the safety and stability of the signal transmission process.

[0034] In practical use, when installing this power-assisted bicycle torque sensor, first, install the rotating elastic body 2 onto the bicycle's main shaft through its internal through-hole. Then, connect the rotating elastic body 2 to other transmission components on the bicycle using the internal splines 3 and external splines 4 at both ends, ensuring a tight connection and smooth transmission. Next, precisely position and install the torque sensor body 1 to the rotating elastic body 2 via its three side positioning protrusions 5, thus achieving a rotatable connection between the torque sensor body 1 and the rotating elastic body 2.

[0035] Based on actual installation requirements, determine the required length of signal cable 6 and cut it to the appropriate length. Next, insert the cut signal cable 6 into the connecting slot 75 of the connecting part 74 of the connector 7, ensuring that the three connecting wires inside the signal cable 6 are accurately connected to the three equally spaced pins 76 arranged in a straight line within the connecting slot 75. Because the ends of the pins 76 are tapered, they can be inserted more easily into the connecting wires of the signal cable 6, achieving a good electrical connection.

[0036] Next, the hinge cover 71 is rotated around the hinge point with the connecting groove 75, so that the hinge cover 71 covers the connecting groove 75. At this time, the locking teeth 78 at the bottom of the hinge cover 71 lock the top of the signal line 6, thus initially fixing the signal line 6. Then, the fixing ears 79 on both sides of the hinge cover 71 are fixedly connected to the fixing ear grooves 77 on both sides of the top of the connecting part 74 by the connecting screws 73, further ensuring the stability of the connection between the connector 7 and the signal line 6.

[0037] Finally, connect the connector 7 to the bicycle's power assist system or other related equipment to complete the installation of the power-assist bicycle torque sensor. During bicycle riding, the rotating elastomer 2 transmits the torque generated during riding to the torque sensor body 1. The torque sensor body 1 transmits the detected torque signal to the connector 7 via the signal line 6, and then to the power assist system. The power assist system provides corresponding assistance output based on the received torque signal, enabling the power-assist bicycle to operate normally.

[0038] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.

Claims

1. A torque sensor for a power-assisted bicycle with a customizable signal line length, characterized in that, include: The torque sensor body (1), the rotating elastic body (2), the signal line (6) and the connector (7) are rotatably connected to the torque sensor body (1), and the torque sensor body (1) is electrically connected to the connector (7) through the signal line (6). The rotating elastic body (2) has a bicycle spindle through hole inside, and its two ends are respectively provided with an internal spline (3) and an external spline (4). The torque sensor body (1) has three positioning protrusions (5) on its side.

2. The power-assisted bicycle torque sensor according to claim 1, characterized in that, The connector (7) includes a hinged cover plate (71), a connecting part (74), a plug part (72), and a plug pin (76). The connecting part (74) and the plug part (72) are integrally formed. A connecting groove (75) is provided in the middle of the connecting part (74). The hinged cover plate (71) is hinged to the connecting groove (75). A plug pin (76) is installed in the connecting groove (75). A locking tooth (78) is provided at the bottom of the hinged cover plate (71).

3. The power-assisted bicycle torque sensor according to claim 2, characterized in that, The number of the three connector pins (76) is three, and the three connector pins (76) are arranged in an equidistant "I" line, with the ends being tapered.

4. The power-assisted bicycle torque sensor according to claim 2, characterized in that, The hinged cover plate (71) is provided with fixing ears (79) on both sides, and the top of the connecting part (74) is provided with fixing ear grooves (77) on both sides. The fixing ear grooves (77) and fixing ears (79) are fixedly connected by connecting screws (73).

5. The power-assisted bicycle torque sensor according to claim 1, characterized in that, The signal line (6) is a flat cable with three parallel connecting lines inside. The three connecting lines are covered with an insulating wrapping layer and are arranged in a straight line.

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