CN213185764U - Sport equipment is attenuator in coordination - Google Patents
Sport equipment is attenuator in coordination Download PDFInfo
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- CN213185764U CN213185764U CN202022398375.1U CN202022398375U CN213185764U CN 213185764 U CN213185764 U CN 213185764U CN 202022398375 U CN202022398375 U CN 202022398375U CN 213185764 U CN213185764 U CN 213185764U
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- damping motor
- bracket
- electromagnet assembly
- resistance
- metal piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model discloses a sport equipment cooperative damper, which comprises a frame, a damping motor, a flywheel component, an electromagnet component and a controller; the flywheel assembly comprises a crankshaft and a metal piece, the crankshaft is arranged on the rack, the damping motor is arranged on the crankshaft, and the metal piece is fixedly arranged on a rotor of the damping motor; the electromagnet assembly is arranged on the rack and is positioned on one side of the metal piece; the controller is used for respectively controlling the current passing through the damping motor and the electromagnet assembly so as to control the resistance of the metal piece. The utility model discloses be integrated as a attenuator with damping motor and electromagnet assembly, through electromagnet assembly cooperation damping motor work, can supply the not enough of damping motor production resistance through electromagnet assembly during low rotational speed, and mainly provide the resistance with the damping motor to provide higher resistance precision, also more economize on electricity, solved the low rotational speed of damping motor and provided the resistance not enough and electromagnet assembly provide the not high, more power consumptive problem of resistance precision.
Description
Technical Field
The utility model relates to the technical field of sports equipment, a sports equipment is attenuator in coordination.
Background
When sports equipment (such as fitness equipment and training equipment) works, force load needs to be provided through a damper, and the conventional dampers generally comprise a mechanical damper type damper, an electromagnetic damper type damper, a motor damper type damper and the like.
For mechanical damping, resistance is typically generated by friction with the moving member, and the amount of resistance generated in this manner is not controllable and is gradually eliminated in many higher end sports apparatuses.
In the electromagnetic damping type, as disclosed in patent document No. CN207843201U, an electromagnetic resistance device is disclosed, which uses the principle of magnetic induction, and places a rotating moving member in a magnetic field, and the moving member cuts the magnetic field to generate an eddy current, and the eddy current and the magnetic field act to generate an ampere force, thereby generating resistance.
In the motor damping type, for example, the damping motor disclosed in patent document CN109011332A, a load torque is provided by the motor, so that the coil rotates to cut magnetic lines of force to generate a current, an ampere force is generated, and a resistance is generated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sport equipment is attenuator in coordination, its precision that both can guarantee to produce the resistance, reduce power consumptively, can guarantee the result of use of sport equipment when low rotational speed again.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cooperative damper for sports equipment comprises a frame, a damping motor, a flywheel assembly, an electromagnet assembly and a controller;
the flywheel assembly comprises a machine shaft and a metal piece, the machine shaft is arranged on the rack, the damping motor is arranged on the machine shaft, and the metal piece is fixedly arranged on a rotor of the damping motor;
the electromagnet assembly is arranged on the rack and is positioned on one side of the metal piece;
the controller is used for respectively controlling the current passing through the damping motor and the electromagnet assembly so as to control the resistance of the metal piece.
Further, still include power resistance, the damping motor passes through the controller and links to each other with power resistance.
Furthermore, the damping motor further comprises a driving wheel, and the driving wheel is mounted on a rotor of the damping motor.
Further, the frame comprises a first support and a second support, the crankshaft is mounted on the first support and the second support, the metal piece is located between the first support and the second support, and the electromagnet assembly is parallel to a rotating surface of the metal piece.
Furthermore, the electromagnet assembly comprises an electromagnet coil and a plurality of silicon steel sheets, the silicon steel sheets are arranged in the electromagnet coil in a stacked mode, and the silicon steel sheets are fixedly arranged between the first support and the second support.
Furthermore, the electromagnet assembly further comprises a bolt, a nut and a sleeve, one end of the bolt penetrates through the first support, the silicon steel sheet and the second support in sequence and then is locked by the nut, the sleeve is arranged between the first support and the silicon steel sheet and between the silicon steel sheet and the second support respectively, and the sleeve is sleeved on the bolt.
After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:
the utility model discloses be integrated as a attenuator with damping motor and electromagnet assembly, through electromagnet assembly cooperation damping motor work, can supply the not enough of damping motor production resistance through electromagnet assembly during low rotational speed, and mainly provide the resistance with the damping motor to provide higher resistance precision, also more economize on electricity, solved the low rotational speed of damping motor and provided the resistance not enough and electromagnet assembly provide the not high, more power consumptive problem of resistance precision.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention;
fig. 3 is an exploded view of fig. 2 according to the present invention;
FIG. 4 is a schematic view of the installation of the electromagnet assembly of the present invention;
fig. 5 is an exploded view of fig. 4 according to the present invention.
Description of reference numerals:
a frame 100, a first support 110, a second support 120;
a damping motor 200;
the electromagnet assembly 400, the electromagnet coil 410, the silicon steel sheet 420, the bolt 430, the nut 440 and the sleeve 450;
a controller 500;
a power resistor 600;
a drive wheel 700.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
Referring to fig. 1, the present invention discloses a cooperative damper for sports equipment, which comprises a frame 100, a damping motor 200, a flywheel assembly 300, an electromagnet assembly 400, a controller 500, a power resistor 600 and a driving wheel 700.
As shown in fig. 1 to 3, the flywheel assembly 300 includes a crankshaft 310 and a metal member 320, the crankshaft 310 is mounted on the machine frame 100, the damping motor 200 is disposed on the crankshaft 310, and the metal member 320 is fixedly disposed on the rotor of the damping motor 200. The damping motor 200 is connected with the power resistor 600 through the controller 500, and the phase current of the damping motor 200 is accurately controlled through a FOC control mode of magnetic field orientation control, so that the accurate control of the resistance generated by the damping motor 200 is realized. The driving wheel 700 is mounted on the rotor of the damping motor 200, and the shaft 310 can be in driving connection with an external mechanism through the driving wheel 700.
The rack 100 comprises a first bracket 110 and a second bracket 120, a crankshaft 310 is mounted on the first bracket 110 and the second bracket 120, a metal piece 320 is positioned between the first bracket 110 and the second bracket 120, an electromagnet assembly 400 is parallel to a rotating surface of the metal piece 320, so that the metal piece 320 is positioned in a magnetic field of the electromagnet assembly 400, the metal piece 320 cuts the magnetic field to generate eddy currents, and the eddy currents and the magnetic field act to generate ampere force, thereby generating resistance to the metal piece 320.
The controller 500 is used for controlling the current passing through the damping motor 200 and the electromagnet assembly 400 respectively, so as to control the resistance of the metal piece 320.
As shown in fig. 2, 4 and 5, the electromagnet assembly 400 is disposed on the frame 100 and is located at one side of the metal member 320. In this embodiment, the electromagnet assembly 400 includes an electromagnet coil 410 and a plurality of silicon steel sheets 420, the silicon steel sheets 420 are stacked in the electromagnet coil 410, and the silicon steel sheets 420 are fixedly disposed between the first bracket 110 and the second bracket 120. The electromagnet assembly 400 further comprises a bolt 430, a nut 440 and a sleeve 450, one end of the bolt 430 penetrates through the first support 110, the silicon steel sheets 420 and the second support 120 in sequence and then is locked by the nut 440, the sleeve 450 is arranged between the first support 110 and the silicon steel sheets 420 and between the silicon steel sheets 420 and the second support 120 respectively, the sleeve 450 is sleeved on the bolt 430, and when the bolt 430 is locked, the sleeve 450 clamps the silicon steel sheets 420 between the first support 110 and the second support 120.
The working process of the utility model is as follows:
the maximum resistance provided by the electromagnet assembly 400 and the applied current are related to the pedaling frequency, while the maximum resistance provided by the damping motor 200 is related to the pedaling frequency only, and when the pedaling frequency is low, the rotating speed of the flywheel assembly 300 is also low. Therefore, in the low-treading frequency state, the maximum resistance generated when the damping motor 200 works is insufficient, and the controller 500 is required to control the electromagnet assembly 400 to increase the current to a proper amount to generate additional resistance, so as to supplement the shortage of resistance generated by the damping motor 200, thereby providing accurate rotation resultant resistance for the flywheel assembly 300, providing enough strength load for the user to move through the transmission mechanism, and ensuring the using effect of the flywheel assembly 300 at the low rotating speed.
After the pedaling frequency is increased, the flywheel assembly 300 works at a normal rotating speed, at the moment, the damping motor 200 can provide enough resistance, and the controller 500 controls the electromagnet assembly 400 to stop working, so that the damping motor 200 can provide higher resistance precision, and more electricity is saved. Therefore, the controller 500 controls the magnitude of the working current of the damping motor 200 and the electromagnet assembly 400, that is, the magnitude of the resistance of the metal piece 320 can be controlled.
For example: the user wants to get a resisting moment of 30N m at a cadence of 50RPM (revolutions per minute), the metal 320 needs to provide a resisting moment of 6N m. If the resisting moment is provided by the damping motor 200 (50 turns of the winding, 27 slots, 3 ohm internal resistance, 0.0045 square meters of cross section and 0.5T of the permanent magnet strip), the resisting moment can only be provided by 2N m at most when the stepping frequency is 50RPM, and the difference is 4N m, which cannot be satisfied. At this time, the damping motor 200 is controlled by PWM to open 0.75 duty cycle, so that the resisting moment provided by the damping motor is 1.5N × m, and then the working current of the electromagnet assembly 400 is controlled to be 0.934A, so that the damping motor 200 and the electromagnet assembly 400 provide 4.5N × m resisting moment to the metal piece 320, and then the resultant force of the resisting moments of the damping motor 200 and the electromagnet assembly 400 is 6N × m, which completely meets the use requirement of the user at low rotation speed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A cooperative damper for sports equipment is characterized by comprising a frame, a damping motor, a flywheel component, an electromagnet component and a controller;
the flywheel assembly comprises a machine shaft and a metal piece, the machine shaft is arranged on the rack, the damping motor is arranged on the machine shaft, and the metal piece is fixedly arranged on a rotor of the damping motor;
the electromagnet assembly is arranged on the rack and is positioned on one side of the metal piece;
the controller is used for respectively controlling the current passing through the damping motor and the electromagnet assembly so as to control the resistance of the metal piece.
2. The cooperative damper for sports apparatus as claimed in claim 1, further comprising a power resistor, wherein said damping motor is connected to said power resistor via said controller.
3. A cooperative damper for sports apparatus as claimed in claim 1, further comprising a drive wheel mounted on the rotor of said damping motor.
4. The cooperative damper for exercise equipment as claimed in claim 1, wherein the frame includes a first bracket and a second bracket, the crankshaft is mounted on the first bracket and the second bracket, the metal member is disposed between the first bracket and the second bracket, and the electromagnet assembly is parallel to a rotation surface of the metal member.
5. The cooperative damper for sports equipment as recited in claim 4, wherein the electromagnet assembly comprises an electromagnet coil and a plurality of silicon steel sheets, the silicon steel sheets are stacked in the electromagnet coil, and the silicon steel sheets are fixedly arranged between the first bracket and the second bracket.
6. The cooperative damper for sports equipment as claimed in claim 5, wherein the electromagnet assembly further comprises a bolt, a nut and a sleeve, one end of the bolt passes through the first bracket, the silicon steel sheet and the second bracket in sequence and then is locked by the nut, the sleeve is respectively arranged between the first bracket and the silicon steel sheet and between the silicon steel sheet and the second bracket, and the sleeve is sleeved on the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022398375.1U CN213185764U (en) | 2020-10-26 | 2020-10-26 | Sport equipment is attenuator in coordination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022398375.1U CN213185764U (en) | 2020-10-26 | 2020-10-26 | Sport equipment is attenuator in coordination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213185764U true CN213185764U (en) | 2021-05-11 |
Family
ID=75779555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022398375.1U Active CN213185764U (en) | 2020-10-26 | 2020-10-26 | Sport equipment is attenuator in coordination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213185764U (en) |
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2020
- 2020-10-26 CN CN202022398375.1U patent/CN213185764U/en active Active
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