CN105711333A - Hub structure and bicycle - Google Patents

Abstract

The present disclosure relates to a hub structure and a bicycle. The hub structure includes: an axle; an axle housing assembly and a tower base assembly sleeved on the outside of the axle; a power detection device, and the power detection device includes: a speed detection assembly , used to detect the rotation speed of the wheel belonging to the hub structure; the stress detection component, used to detect the stress value generated when the freewheel component rotates. Through the technical proposal of the present disclosure, the power detection device can be integrated into the hub structure, so that the power detection function can be realized without the user's separate installation and debugging, which helps to simplify the structural complexity of the bicycle.

Description

Hub structure and bicycle

technical field

The present disclosure relates to the technical field of vehicles, in particular to a hub structure and a bicycle.

Background technique

With the continuous development of cycling culture and sports, people have higher and higher requirements in the process of cycling. For example, people hope to make statistics on their own exercise status during cycling, so as to formulate a more scientific and healthy riding plan.

Contents of the invention

The present disclosure provides a hub structure and a bicycle to solve the deficiencies in the related art.

According to a first aspect of an embodiment of the present disclosure, there is provided a hub structure, comprising:

axis;

A shaft housing assembly and a tower base assembly sleeved on the outside of the shaft;

A power detection device, the power detection device includes: a speed detection component, used to detect the rotation speed of the wheel of the hub structure; a stress detection component, used to detect the stress value generated when the freewheel base component rotates.

Optionally, the stress detection assembly includes: a magnet and a detection part that can sense changes in the magnetic field; wherein, when the tower base assembly rotates, relative motion can be generated between the detection part and the magnet, so that The detecting unit measures the stress value according to the sensed change of the magnetic field.

Optionally, the detection part is fixedly connected with the shaft housing assembly, so that the detection part can rotate synchronously when the tower base assembly drives the shaft housing assembly to rotate; the magnet is fixed on the shaft center surface or interior.

Optionally, the shaft housing in the shaft housing assembly protrudes outward along the circumferential direction to form an annular accommodation chamber between the shaft center and the inner wall of the shaft housing, and the detection part is located in the ring inside the container.

Optionally, the shaft housing assembly further includes a shaft sleeve located between the shaft center and the shaft housing, and the detection part is fixed to an outer wall of the shaft sleeve.

Optionally, the stress detection assembly further includes: a battery and a charging stand, both of which are fixed in the annular accommodation cavity;

The battery is used to supply power to the detection unit;

The power supply end of the charging stand is connected to the battery; the shaft housing assembly includes a predetermined opening in the circumferential direction, and the charging end of the charging stand is located at the predetermined opening to be connected to an external power supply.

Optionally, the detection unit includes:

at least one strain gauge;

At least one main board is respectively connected to the strain gauges; the main board is provided with a data transmission chip for outputting the stress value detected by the strain gauges to a preset object.

Optionally, when the detection part includes a plurality of strain gauges, the plurality of strain gauges are evenly arranged along the circumference of the axis.

Optionally, the speed detection component is integrated on the main board, and outputs the collected rotation speed to the preset object through the data transmission chip.

According to a second aspect of the embodiments of the present disclosure, there is provided a bicycle, comprising: the hub structure described in any one of the above embodiments.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

It can be seen from the above embodiments that the present disclosure integrates the power detection device in the hub structure, so that the hub structure can directly detect the power of the user during riding without installing additional equipment such as a power meter, which simplifies the operation of the bicycle. The structure reduces the difficulty and learning cost for the user to detect the riding power, and facilitates debugging and configuration of the power detection device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is an exploded schematic diagram of a hub structure according to an exemplary embodiment.

Fig. 2 is a sectional view of a hub structure according to an exemplary embodiment.

Fig. 3 is a schematic perspective view of a detection unit in a power detection device according to an exemplary embodiment.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

In related technologies, users need to separately install a power meter on the bicycle, so as to collect their own exercise power status during riding. However, the user needs to disassemble and assemble the relevant parts on the bicycle when installing the power meter. If the user is not familiar with the structure of the relevant parts, etc., it is likely to cause failure to install or the power meter cannot be used normally after installation; After the power meter is installed, because the power meter does not exactly match the parts on the bicycle, based on the differences in the installation conditions of each user, the user needs to debug the power meter separately, which is not only complicated to operate, but also requires extremely high user learning cost.

Therefore, the present disclosure solves the above-mentioned problems in the related art by improving the bicycle hub structure. The technical solution of the present disclosure will be described below with reference to the embodiments.

Fig. 1 is an exploded schematic view of a hub structure according to an exemplary embodiment; Fig. 2 is a cross-sectional view of a hub structure according to an exemplary embodiment. As shown in Figures 1-2, the hub structure may include: a shaft center 11, a freewheel assembly 20, and a shaft housing assembly 30; wherein, the freewheel assembly 20 and the shaft housing assembly 30 are respectively sleeved on the outside of the shaft center 11, so that when When the tower base assembly 20 rotates under the force exerted by the user, it can drive the shaft housing assembly 30 to rotate synchronously, thereby realizing the bicycle's travel.

Wherein, tower base assembly 20 mainly includes tower base 21 etc., and through first bearing 12A, first bearing spacer 13, second bearing 12B, second bearing spacer 22, third bearing 12C and right side bushing 14 etc., sleeved on the axis 11.

The shaft housing assembly 30 mainly includes a shaft housing 31 and a shaft sleeve 32, etc., and is sleeved and installed on the shaft center 11 through the left shaft sleeve 15, the left locking cover 33, the fourth bearing 12D, etc., and realizes the tower base assembly 20 Cooperate with the shaft housing assembly 30.

In addition, based on the technical solution of the present disclosure, the above-mentioned hub structure also includes: a power detection device 40, which can measure the stress value generated when the freewheel assembly 30 rotates and the hub structure during the user's riding process. The rotation speed of the associated wheel is detected respectively. Then, according to the calculation formula of power, that is: power = power × speed; and the above stress value corresponds to the force applied by the user when riding, and the rotation speed corresponds to the riding speed of the user, so it can be calculated accordingly. Power status during riding.

It can be seen from the above embodiments that the present disclosure directly integrates the power detection device 40 in the hub structure, so that the user can directly realize the power calculation through the bicycle using the hub structure of the present disclosure without installing and debugging additional equipment such as power meters , which not only simplifies the structure of the bicycle, but also reduces the difficulty and learning cost for the user to detect the riding power, and facilitates the debugging and configuration of the power detection device.

In the embodiment of the present disclosure, the power detection device 40 includes: 1) a stress detection component used to detect the stress value generated when the freewheel body assembly 20 rotates; 2) a speed detection component used to detect the rotation speed of the wheel belonging to the hub structure components. The following is a detailed description of the stress detection component and the speed detection component respectively:

1. Stress detection components

In one embodiment, the stress detection assembly may include: a magnet and a detection part that can sense changes in the magnetic field; wherein, when the tower base assembly 20 rotates, relative motion can be generated between the detection part and the magnet, so that the detection part The stress value is measured by the change of the magnetic field.

In other words, by rationally setting the magnet and the detection part so that the two generate relative motion when the tower base assembly 20 rotates, the detection part can determine the corresponding The magnitude of the stress value.

In order to realize the above "relative movement", the following two setting methods can be used:

In one case, the detection part is fixedly connected with the shaft housing assembly 30 , so that the detection part can rotate synchronously when the tower base assembly 20 drives the shaft housing assembly 30 to rotate; meanwhile, the magnet is fixedly connected with the shaft center 11 . In this embodiment, since the tower base assembly 20 drives the shaft housing assembly 30 to rotate during riding, while the shaft center 11 does not move, the detection part rotates and the magnet does not move, thereby forming a relative relationship between the detection part and the magnet. sports.

Further, the shaft housing 31 in the shaft housing assembly 30 can protrude outward along the circumferential direction to form an annular accommodation chamber between the shaft center 11 and the inner wall of the shaft housing 31, and the detection part 4A can be located in the annular accommodation chamber Of course, when the shaft housing assembly 30 actually includes the shaft sleeve 32 , the annular accommodating chamber can be located between the shaft sleeve 32 and the shaft center 11 , or between the shaft sleeve 32 and the shaft housing 31 . Then, in the embodiment shown in FIG. 2 , assuming that the annular accommodating cavity is located between the shaft sleeve 32 and the shaft housing 31, the detection part 4A can be fixedly arranged on the outer wall of the shaft sleeve 32, and the magnet 4B can be fixed on the shaft. Inside the core 11 (that is, in the cavity of the shaft 11; of course, it can also be arranged on the surface of the shaft 11 (such as between the outer wall of the shaft 11 and the inner wall of the sleeve 32) and other positions).

In another case, the method opposite to the above situation can be adopted, that is, the magnet is fixedly connected to the shaft housing assembly 30, and the detection part is fixedly connected to the shaft center 11. Then, the detection part and the detection part can be formed by rotating the magnet and keeping the detection part stationary. Relative motion between magnets.

Fig. 3 is a schematic perspective view of a detection unit in a power detection device according to an exemplary embodiment. As shown in Fig. 3, the detection unit 4A may include:

Strain gauge 42, and be connected to the mainboard 43 of strain gauge 42 by such as FPC connecting wire 44; Data transmission chip (not shown) is provided on the mainboard 43, is used for the stress value that strain gauge 42 detects is exported to preset set object.

In this embodiment, there is no limit to the number of strain gauges 42 and main boards 43, the detection portion 4A may include at least one main board 43, and each main board 43 may be connected to one or more strain gauges 42; for example, as shown in FIG. 3 In the illustrated embodiment, the detection part 4A includes two main boards 43, and each main board 43 is connected with two strain gauges 42 respectively. Wherein, as shown in FIG. 3 , a plurality of strain gauges 42 included in the detection portion 4A may be formed into a ring shape as much as possible, so that when the detection portion 4A is fixedly arranged in the hub structure, for example, the detection portion 4A may be fixed in the manner shown in FIG. 2 . When fixed on the outer wall of the shaft sleeve 32, a plurality of strain gauges 42 can be evenly arranged along the circumference of the shaft center 11 as much as possible, which helps to realize more accurate stress detection operation during the rotation process.

In this embodiment, the data transmission chip on the main board 43 can output the stress value detected by the strain gauge 42 to a preset object through a wired method. For example, the preset object can be an intelligent processing module on a bicycle. The module communicates with the user's mobile phone and other electronic devices, and can send the stress value or the corresponding power value to the electronic device, so that the user can know the power value (sent directly by the intelligent processing module, or according to the stress value sent by the intelligent processing module) value is calculated).

Alternatively, the data transmission chip on the main board 43 can use a wireless method, such as Bluetooth or WIFI, to output the stress value detected by the strain gauge 42 to a preset object. For example, the preset object can be an electronic device such as a user's mobile phone, then The electronic device can perform calculations based on the received stress values to obtain power values. Of course, a processing chip (not shown) can also be directly integrated on the main board 43. After the processing chip calculates the power value according to the stress value, it can be directly sent to the user's mobile phone and other electronic devices by the data transmission chip.

2. Speed detection component

As an exemplary embodiment, the speed detection component may be an acceleration sensor, and the acceleration sensor may be arranged at any position in the hub structure, and the present disclosure is not limited thereto. For example, as shown in Figure 3, the acceleration sensor (not shown) can be integrated on the main board 43; then, the data transmission chip on the main board 43 can output the rotational speed collected to the above-mentioned preset object ; Wherein, when the main board 43 is also provided with the above-mentioned processing chip, the processing chip can calculate the power according to the rotation speed detected by the acceleration sensor and the stress value detected by the above-mentioned strain gauge 42 and directly output by the data transmission chip to The preset object described above.

In addition, in any of the above-mentioned embodiments of the present disclosure, the stress detection assembly may also include a battery 41 as shown in FIG. In order to realize power supply to the main board 43 and the strain gauge 42 and the like. The battery 41 can adopt a detachable structure, so that users can recharge or replace it after disassembly.

Of course, in the embodiment shown in FIG. 3 , the stress detection assembly may also include a charging stand 47, which is connected to the main board 43 through the joint 46, and then electrically connected to each battery 41 through the FPC connection wire 45, thereby realizing Charging operation of the battery 41 .

In the above embodiment, the battery 41 and the charging base 47 may belong to the detection part 4A, so as to be arranged in the annular accommodation chamber between the above-mentioned shaft center 11 and the shaft housing 31 . Wherein, as shown in FIG. 1 , the circumferential direction of the axle housing 31 may include a preset opening, such as the preset opening may be located in the middle of the circumferential side wall of the axle housing 31, and the charging end of the charging base 47 may be located at the The opening is preset so that the user can directly connect the external power supply to the charging stand 47 to realize the charging operation of the battery 41 without removing the battery 41 or the power detection device.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. a hub structure, it is characterised in that including:

Axle center；

It is sheathed on the axle housing assembly outside described axle center and column foot assembly；

Power detection device, described power detection device includes: velocity measuring assembly, for detecting the velocity of rotation of the affiliated wheel of described hub structure；Stress mornitoring assembly, for detecting the stress value produced when described column foot assembly rotates.

2. hub structure according to claim 1, it is characterised in that described stress mornitoring assembly includes: magnet and can induced field change test section；Wherein, when described column foot assembly rotates, relative motion can be produced between described test section and described magnet therewith, make described test section record described stress value according to the changes of magnetic field sensed.

3. hub structure according to claim 2, it is characterised in that described test section is fixing with described axle housing assembly to be connected, makes described test section described axle housing assembly can be driven to carry out synchronous axial system when rotating at described column foot assembly；Described magnet is fixed on surface, described axle center or inside.

4. hub structure according to claim 3, it is characterised in that the axle housing circumferentially outwardly convex in described axle housing assembly, forms the ring-type between described axle center and described axle housing inwall and holds chamber, and described test section is positioned at described ring-type and holds intracavity.

5. hub structure according to claim 4, it is characterised in that described axle housing assembly also includes the axle sleeve between described axle center and described axle housing, and described test section is fixed on the outer wall of described axle sleeve.

6. hub structure according to claim 4, it is characterised in that described stress mornitoring assembly also includes: battery and cradle, is both secured to described ring-type and holds intracavity；

Described battery is for powering to described test section；

The feeder ear of described cradle is connected with described battery；Described axle housing assembly comprises one in the circumferential and presets opening, and the charging end of described cradle is positioned at described default opening part, to be connected to the power supply source in the external world.

7. hub structure according to claim 2, it is characterised in that described test section includes:

At least one foil gauge；

At least one mainboard, is respectively connecting to described foil gauge；Described mainboard is provided with data transmission chip, extremely presets object for the stress value output arrived by described strain measurement.

8. hub structure according to claim 7, it is characterised in that when comprising multiple foil gauge in described test section, multiple foil gauges are uniformly arranged along the circumference in described axle center.

9. hub structure according to claim 7, it is characterised in that described velocity measuring assembly is integrated on described mainboard, and transmit, by described data, the described velocity of rotation output extremely described default object that chip will collect.

10. a bicycle, it is characterised in that including: hub structure as claimed in any one of claims 1-9 wherein.