Middle motor torque sensor with telescopic signal line

Abstract

The utility model discloses a centrally-mounted motor torque sensor with a telescopic signal line, which comprises a torque sensor rotating end and a sensor support, and the torque sensor rotating end is rotatably connected with the sensor support. According to the utility model, the length of the signal line can be adjusted, during use, when the length of the signal line needs to be adjusted, the sliding cover slides in the reverse direction, the clamping groove I and the clamping groove II are separated, so that the signal line is not clamped and fixed, the exposed length of the signal line is adjusted by pulling out or plugging the signal line, and after the adjustment is completed, the signal line can be fixed. When the torque sensor is used, the sliding cover is loosened, the spring drives the sliding cover to reset at the moment, and the signal line is clamped and fixed by the first clamping groove and the second clamping groove, so that the length of the signal line is conveniently adjusted to adapt to motors of different models, compared with an existing torque sensor, the length of the signal line can be adjusted, and the torque sensor can adapt to the motors of different models. And the method is good in universality and suitable for large-scale batch production.

Description

TECHNICAL FIELD

[0001] The utility model relates to a torque sensor technical field, concretely relates to a signal line telescopic middle -position motor torque sensor. BACKGROUND

[0002] The middle -position motor torque sensor is installed between the sensor of electric power-assisted bicycle middle axle and output shaft, is used for measuring the torque size of transmission. It detects the tiny deformation of the middle axle surface through the strain gauge, thereby obtains the torque value. The sensor has higher measurement accuracy, and can measure and transmit the torque data to the motor controller under different riding modes, such as human power drive or electric power-assisted, to control the motor output appropriate power. The accuracy of the torque sensor is crucial to provide smooth and natural riding experience, avoiding the discomfort of riding feeling caused by inaccurate measurement of traditional pedal sensor.

[0003] The torque sensor in the prior art is electrically connected through the signal line installed on the sensor support, but the length of the signal line is different for different models of middle -position motor, and the traditional way is to produce signal lines of different lengths according to the model of middle -position motor, which is difficult to mass produce.

[0004] Therefore, how to provide a signal line telescopic middle -position motor torque sensor to solve the problems existing in the prior art is of great significance to its application. UTILITY MODEL CONTENTS

[0005] Therefore, the purpose of the present application is to provide a signal line telescopic middle -position motor torque sensor to solve the problem that the traditional way is to produce signal lines of different lengths according to the model of middle -position motor, which is difficult to mass produce.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A signal line telescopic middle -position motor torque sensor, including torque sensor rotating end and sensor support, torque sensor rotating end and sensor support rotation connection, the surface of sensor support is equipped with sliding slot, the sliding slot is connected with sliding cover, the inside of sensor support is equipped with cavity, the inside of cavity is installed with circuit board, the circuit board is connected with signal line, the end surface of sliding cover and the end surface of sliding slot are equipped with slot one and slot two respectively, the tail end of signal line passes through slot two and is installed with connecting plug.

[0008] Preferably, the sliding cover and the sliding slot are elastically connected through a spring.

[0009] Preferably, the surface of the sensor support is fixedly connected with a foolproof convex.

[0010] Preferably, the side surface of the sensor support is fixedly connected with a sealing ring, the sealing ring is fixedly connected with a sealing ring, the side of the sealing ring is provided with a groove, and the spring ring is embedded in the groove.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1、The utility model discloses a signal line length adjusting device of torque sensor, which comprises a signal line, a signal line fixing device and a signal line length adjusting device, wherein the signal line fixing device is fixedly connected with the signal line length adjusting device.

[0013] 2、The utility model discloses a sealing ring is provided with spring ring in, make the sealing property of torque sensor is good, waterproof dustproof.

[0014] The above description is only a summary of the technical scheme of the application. In order to more clearly understand the technical means of the application, the contents of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following will be described in detail with the preferred embodiments of the application and the accompanying drawings.

[0015] According to the detailed description of the specific embodiments of the application in the following text combined with the drawings, those skilled in the art will be more clear about the above and other purposes, advantages and characteristics of the application. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is an axial sectional view of the utility model;

[0019] Figure 3 is an enlarged view of A in FIG. Figure 1 is an enlarged view of A in FIG.

[0020] Figure 4 is a radial sectional view of the utility model.

[0021] In the figure: 1, torque sensor rotating end; 2, prevent stupid boss; 3, sensor support; 4, sealing ring; 5, sealing ring; 6, sliding slot; 7, signal line; 8, connecting plug; 9, circuit board; 10, sliding cover; 11, card slot one; 12, spring; 13, card slot two. DETAILED DESCRIPTION

[0022] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present 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 the present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted in the embodiments.

[0023] In addition, reference numerals and / or letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplification and clarity, and does not itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0024] The term "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, B exists alone, and A and B exist simultaneously. The term "and" herein is a description of another association relationship of the associated objects, which means that there can be two relationships, for example, A and B can mean that A exists alone and A and B exist simultaneously. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0025] It should also be noted that, in this document, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion.

[0026] Please refer to Figures 1-4The application provides a torque sensor of an intermediate motor with a telescopic signal line, which comprises a torque sensor rotating end 1 and a sensor support 3, wherein the torque sensor rotating end 1 is rotationally connected with the sensor support 3, a sliding groove 6 is formed on the surface of the sensor support 3, a sliding cover 10 is slidably connected with the sliding groove 6, a cavity is formed in the sensor support 3, a circuit board 9 is arranged in the cavity, a signal line 7 is connected with the circuit board 9, a clamping groove one 11 and a clamping groove two 13 are respectively formed on the end surface of the sliding cover 10 and the end surface of the sliding groove 6, and the end of the signal line 7 passes through the clamping groove two 13 and is provided with a connecting plug 8.

[0027] The sliding cover 10 and the sliding groove 6 are elastically connected through a spring 12, and the spring 12 can be any elastic member such as a spring leaf.

[0028] The surface of the sensor support 3 is fixedly connected with a foolproof convex 2, so that the torque sensor can be connected and fixed with the shell at a correct installation angle through the arrangement of the foolproof convex 2.

[0029] The side surface of the sensor support 3 is fixedly connected with a sealing ring 4, the sealing ring 4 is fixedly connected with a sealing ring 5, a groove is formed on the side of the sealing ring 5, a spring ring is embedded in the groove, and the spring ring is arranged in the sealing ring 5, so that the torque sensor has good sealing performance and is waterproof and dustproof.

[0030] In specific use, when the length of the signal line 7 needs to be adjusted, the sliding cover 10 is slid in the opposite direction, at this time, the clamping groove one 11 and the clamping groove two 13 are separated, so that the clamping and fixing of the signal line 7 are lost, the length of the signal line 7 exposed is adjusted by pulling out or inserting the signal line 7, after the adjustment is completed, the sliding cover 10 is loosened, at this time, the spring 12 drives the sliding cover 10 to reset, the clamping and fixing of the signal line 7 by the clamping groove one 11 and the clamping groove two 13 are realized, so that the length of the signal line 7 is conveniently adjusted to adapt to different types of motors, compared with the existing torque sensor, the length of the signal line in the utility model can be adjusted, different types of motors can be adapted, the utility model has good universality and is suitable for large-scale batch production.

[0031] The above only describes the preferred embodiments of the utility model, and does not limit the protection scope of the utility model. For those skilled in the art, the utility model can be changed and varied in various ways. Any change, modification, replacement, integration and parameter change of the embodiments within the spirit and principle of the utility model, which can realize the same function without departing from the principle and spirit of the utility model, falls within the protection scope of the utility model.

Claims

1. A mid-mounted motor torque sensor with a retractable signal line, characterized in that: The device includes a torque sensor rotating end (1) and a sensor bracket (3), which are rotatably connected. The surface of the sensor bracket (3) is provided with a sliding groove (6), and a sliding cover (10) is slidably connected to the sliding groove (6). The sensor bracket (3) has a cavity inside, and a circuit board (9) is installed inside the cavity. The circuit board (9) is connected to a signal line (7). The end face of the sliding cover (10) and the end face of the sliding groove (6) are respectively provided with a first slot (11) and a second slot (13). The end of the signal line (7) passes through the second slot (13) and is connected to a connector (8).

2. The retractable signal line mid-mounted motor torque sensor as described in claim 1, characterized in that: The sliding cover (10) and the slide groove (6) are elastically connected by a spring (12).

3. A mid-mounted motor torque sensor with a retractable signal line as described in claim 2, characterized in that: The sensor bracket (3) has anti-foolproof protrusions (2) fixedly connected to its surface.

4. A mid-mounted motor torque sensor with a retractable signal line as described in claim 3, characterized in that: A sealing ring (4) is fixedly connected to the side of the sensor bracket (3), and a sealing ring (5) is fixedly connected to the sealing ring (4). A groove is provided on the side of the sealing ring (5), and a spring ring is embedded inside the groove.

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