Electromagnetic resistance device with adjustable resistance and exoskeleton equipment

Abstract

The utility model provides an electromagnetic resistance device with adjustable resistance and exoskeleton equipment. The electromagnetic resistance device comprises a shell, and a rotor, a permanent magnet assembly, a magnetic conductive assembly and an electromagnetic stator with adjustable magnetic field intensity which are arranged in the shell, the rotor comprises a rotating shaft and a conductive disc. The conductive disc is connected with the rotating shaft and coaxially rotates along with the rotating shaft; the rotating shaft is positioned and connected with the shell and can rotate relative to the shell; one end of the rotating shaft extends out of the shell and is in transmission connection with external equipment; the electromagnetic stator, the permanent magnet assembly and the magnetic conductive assembly are all fixed in the shell; the electromagnetic stator and the permanent magnet assembly are located on the same side or different sides of the conductive disc. The magnetic conductive assembly is arranged on one side of the permanent magnet assembly. According to the electromagnetic resistance device provided by the utility model, the resistance applied to the rotor is adjusted based on the electromagnetic stator with the adjustable magnetic field intensity; according to the exoskeleton equipment, the resistance device is in transmission connection, so that adjustable resistance can be provided for a wearer, resistance training is carried out through the exoskeleton equipment, and flexibility is better.

Description

Technical Field

[0001] The utility model relates to the technical field of exoskeleton equipment, and in particular to an electromagnetic resistance device with adjustable resistance and an exoskeleton equipment. Background Art

[0002] An exoskeleton is a wearable mechanical device. Common exoskeletons are generally used to enhance human strength, provide support, protect the body, or assist in movement. In athletes' resistance training, exoskeletons can also be used to provide resistance for athletes. For example, an exoskeleton can apply a force to the thigh in the opposite direction of the thigh swing, thereby training the waist, abdomen, and leg muscles.

[0003] However, the resistance provided by existing exoskeleton equipment for resistance training is generally constant, and users cannot adjust the resistance to an appropriate level according to their own conditions or environmental conditions. The equipment has poor flexibility and a poor user experience. Utility Model Content

[0004] In order to overcome the defects of the above-mentioned prior art, the utility model provides an electromagnetic resistance device and an exoskeleton device with adjustable resistance. The specific technical scheme is as follows:

[0005] The utility model provides an electromagnetic resistance device with adjustable resistance, comprising: a shell, and a rotor, a permanent magnet component, a magnetic conductive component and an electromagnetic stator with adjustable magnetic field strength arranged in the shell;

[0006] The rotor comprises a rotating shaft and a conductive disk; the conductive disk is connected to the rotating shaft so as to coaxially rotate with the rotating shaft; the rotating shaft is positioned and connected to the housing and can rotate relative to the housing; one end of the rotating shaft extends out of the housing for transmission connection with an external device;

[0007] The electromagnetic stator, the permanent magnet assembly and the magnetic conductive assembly are all fixed in the shell; the electromagnetic stator and the permanent magnet assembly are located on the same side or different sides of the conductive disk; the magnetic conductive assembly is arranged on one side of the permanent magnet assembly.

[0008] In a specific embodiment, the electromagnetic stator includes a stator disk and a plurality of winding frames; the stator disk is connected to the shell; the plurality of winding frames are arranged at intervals along the circumferential direction on the side of the stator disk facing the conductive disk; the plurality of winding frames are each provided with a coil winding, and the coil winding is used to electrically connect to an external power supply.

[0009] In a specific embodiment, the permanent magnet assembly includes a plurality of permanent magnets, and the plurality of permanent magnets are arranged at intervals on one side of the magnetic conductive assembly along a circumferential direction.

[0010] Furthermore, a plurality of limiting protrusions are provided on a side of the magnetic conductive component facing the permanent magnet, and limiting grooves are formed between adjacent limiting protrusions. The permanent magnet is arranged in the limiting groove and abuts against the limiting protrusions adjacent to the limiting protrusions.

[0011] In a specific embodiment, the magnetic field direction of the electromagnetic stator is the same as or opposite to the magnetic field direction of the permanent magnet assembly.

[0012] In a specific embodiment, the electromagnetic stator is located on one side of the conductive disk, the permanent magnet assembly is located on the other side of the conductive disk, and the side of the permanent magnet assembly facing away from the conductive disk is connected to the magnetic conductive assembly; there is a gap between the electromagnetic stator and the conductive disk, and between the conductive disk and the permanent magnet assembly.

[0013] In a specific embodiment, it further includes a bearing connected to the housing, and the rotating shaft is rotatably connected to the housing via the bearing.

[0014] In a specific embodiment, the electromagnetic stator and the housing, and / or the conductive disk and the rotating shaft, and / or the magnetic conductive component and the housing are connected by riveting.

[0015] In a specific embodiment, a transmission device is further included, wherein an input end of the transmission device is transmission-connected to an end of the rotating shaft extending out of the housing, and an output end of the transmission device is used for transmission connection to the external device.

[0016] The utility model also provides an exoskeleton device, comprising the electromagnetic resistance device with adjustable resistance as described in any one of the above embodiments.

[0017] The utility model has at least the following beneficial effects:

[0018] (1) The electromagnetic resistance device with adjustable resistance of the utility model realizes the function of applying resistance to the conductive disk during rotation based on the principle of electromagnetic induction by providing a permanent magnet component and an electromagnetic stator with adjustable magnetic field strength.

[0019] (2) The electromagnetic resistance device with adjustable resistance of the utility model is based on the adjustable magnetic field strength of the electromagnetic stator. The user can change the resistance size of the conductive disk by adjusting the magnetic field strength of the electromagnetic stator according to his own situation and environmental conditions. The device has good flexibility.

[0020] (3) The exoskeleton device of the present invention, based on the electromagnetic resistance device, can provide the wearer with adjustable resistance, thereby improving the flexibility of the exoskeleton device in resistance training. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is an exploded schematic diagram of the overall structure of the electromagnetic resistance device of the utility model;

[0023] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the electromagnetic resistance device of the utility model;

[0024] Figure 3 It is a partial cross-sectional schematic diagram of the electromagnetic resistance device of the utility model;

[0025] Figure 4 It is a schematic diagram of the overall structure of the electromagnetic stator of the utility model.

[0026] Reference numerals:

[0027] 1-housing; 2-rotor; 21-rotating shaft; 22-conductive disk; 3-permanent magnet assembly; 31-permanent magnet; 4-magnetic conductive assembly; 41-limiting protrusion; 42-limiting groove; 5-electromagnetic stator; 51-statator disk; 52-winding skeleton; 6-first bearing; 7-second bearing; 8-transmission device; 81-first transmission wheel; 82-second transmission wheel; 83-transmission belt; 84-connecting cover; 85-reduction mechanism. DETAILED DESCRIPTION

[0028] In the following, various embodiments of the present invention will be described more fully. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present invention.

[0029] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0030] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0031] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0032] It should be noted that in the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The utility model provides an electromagnetic resistance device and an exoskeleton device with adjustable resistance. Please refer to Figure 1 and Figure 2 The electromagnetic resistance device includes: a shell 1, and a rotor 2, a permanent magnet component 3, a magnetic conductive component 4 and an electromagnetic stator 5 with adjustable magnetic field strength arranged in the shell 1.

[0034] Specifically, the rotor 2 includes a rotating shaft 21 and a conductive disk 22. The conductive disk 22 is connected to the rotating shaft 21 to coaxially rotate with the rotating shaft 21; the rotating shaft 21 is positioned and connected to the housing 1 and can rotate relative to the housing 1. One end of the rotating shaft 21 extends out of the housing 1 for transmission connection to an external device.

[0035] Optionally, the conductive plate 22 may be a metal plate that is entirely conductive, such as a copper plate, or a non-metal plate with a conductive portion disposed thereon or inside thereof.

[0036] Further, the electromagnetic stator 5, the permanent magnet assembly 3 and the magnetic conductive assembly 4 are all fixed in the housing 1. The electromagnetic stator 5 and the permanent magnet assembly 3 are located on the same side or different sides of the conductive disk 22; the magnetic conductive assembly 4 is arranged on one side of the permanent magnet assembly 3. Figure 1 The electromagnetic stator 5 and the permanent magnet assembly 3 are located on the opposite sides of the conductive disk 22 , and the magnetic conductive assembly 4 is arranged on the side of the permanent magnet assembly 3 away from the conductive disk 22 .

[0037] Optionally, the electromagnetic stator 5, the permanent magnet component 3 and the magnetic conductive component 4 may be directly fixed in the housing 1, or may be indirectly fixed in the housing 1. Exemplarily, in a specific embodiment, the electromagnetic stator 5 and the housing 1, and / or the conductive disk 22 and the rotating shaft 21, and / or the magnetic conductive component 4 and the housing 1 are connected by riveting, and the permanent magnet component 3 is indirectly connected to the housing 1 by connecting to the magnetic conductive component 4. Preferably, the electromagnetic stator 5 and the housing 1, the conductive disk 22 and the rotating shaft 21, and the magnetic conductive component 4 and the housing 1 are all connected by riveting.

[0038] Exemplarily, the magnetic conductive component 4 may be a disk of a high magnetic conductive material, and preferably, the electromagnetic stator 5, the conductive disk 22 and the disk of a high magnetic conductive material are coaxially arranged with the rotating shaft 21 as the central axis.

[0039] The principle of the electromagnetic resistance device of the utility model is: one end of the rotating shaft 21 is connected to the external device by transmission, and the user wears or uses the external device to drive the external device, and the driven external device drives the rotating shaft 21 to rotate relative to the housing 1, and the rotating shaft 21 then drives the conductive disk 22 to rotate relative to the electromagnetic stator 5 and the permanent magnet assembly 3. During the rotation of the conductive disk 22, the conductive disk 22 cuts the magnetic flux lines to generate an induced current, and the induced current forms a closed loop inside the conductive disk 22, that is, an eddy current. Based on the eddy current, the conductive disk 22 itself generates a magnetic field, and the magnetic field interacts with the magnetic field of the electromagnetic stator 5 and the permanent magnet assembly 3, thereby providing the conductive disk 22 with resistance in the opposite direction of its rotation, and the resistance is finally transmitted back to the user through the rotating shaft 21, thereby achieving the effect of providing resistance to the user.

[0040] It can be understood that, since the magnetic field strength of the electromagnetic stator 5 is adjustable, the user can change the magnitude of the resistance to the rotation of the conductive disk 22 by changing the magnetic field strength of the electromagnetic stator 5 according to his own situation or environmental conditions, thereby realizing the function of providing the user with adjustable resistance. In practical application, specifically, the magnetic field of the permanent magnet component 3 can provide a constant resistance F1 for the rotating conductive disk 22, the magnetic field direction of the electromagnetic stator 5 is the same as that of the permanent magnet component 3, and the magnitude of the resistance to the conductive disk 22 is the sum of the magnitudes of the resistance applied by the two, that is, the adjustable range of the magnitude of the resistance to the conductive disk 22 is greater than or equal to F1.

[0041] In a specific embodiment, please refer to Figure 1 , Figure 2 and Figure 4 , the electromagnetic stator 5 includes a stator disk 51 and a plurality of winding skeletons 52. Specifically, the stator disk 51 is connected to the housing 1, for example, riveted to the housing 1; a plurality of winding skeletons 52 are arranged at intervals along the circumferential direction on the side of the stator disk 51 facing the conductive disk 22; a plurality of winding skeletons 52 are provided with coil windings (not shown in the figure), and the coil windings are used to electrically connect to an external power supply. It can be understood that when in use, by changing the current input by the external power supply, the magnetic field generated by the coil winding is controlled, thereby achieving the adjustment of the resistance to the conductive disk 22. Optionally, the number and spacing of the winding skeletons 52 can be flexibly designed according to actual conditions.

[0042] In a specific embodiment, the permanent magnet assembly 3 includes a plurality of permanent magnets 31, and the plurality of permanent magnets 31 are arranged at intervals on one side of the magnetic conductive assembly 4 along the circumferential direction. Figure 1 Preferably, multiple permanent magnets 31 are arranged at intervals along the circumferential direction on the side of the magnetic conductive component 4 facing the conductive disk 22, so that the permanent magnets 31 are closer to the conductive disk 22, and the magnetic field generated by the permanent magnets 31 has a better resistance effect on the conductive disk 22 during the rotation process. Optionally, the shape of the permanent magnet 31 can be a fan or a trapezoid, or other shapes; multiple permanent magnets 31 can be arranged on the side of the magnetic conductive component 4 facing the conductive disk 22 by adhesion, and multiple permanent magnets 31 can also be arranged on one side of the magnetic conductive component 4 by other methods.

[0043] Please continue to refer to Figure 1 On the basis of the above embodiment, further, a plurality of limiting protrusions 41 may be provided on the side of the magnetic conductive component 4 facing the permanent magnet 31, and limiting grooves 42 are formed between adjacent limiting protrusions 41. The permanent magnet 31 is arranged in the limiting groove 42 and abuts against the limiting protrusions 41 adjacent to it, thereby achieving the limitation of the permanent magnet 31 and improving the installation stability of the permanent magnet 31.

[0044] In a specific embodiment, please refer to Figure 3, the electromagnetic stator 5 is located on one side of the conductive disk 22, the permanent magnet assembly 3 is located on the other side of the conductive disk 22, the side of the permanent magnet assembly 3 facing away from the conductive disk 22 is connected to the magnetic conductive assembly 4, and there is a gap between the electromagnetic stator 5 and the conductive disk 22, and between the conductive disk 22 and the permanent magnet assembly 3. Exemplarily, the width of the gap can be between 1 / 3-1 / 4 of the thickness of the conductive disk 22. It can be understood that by setting the gap, the electromagnetic stator 5 and the permanent magnet assembly 3 are prevented from contacting the conductive disk 22, the electromagnetic stator 5 and the permanent magnet assembly 3 will not interfere with the rotation of the conductive disk 22, and the service life of the device will not be shortened due to mutual friction.

[0045] In a specific embodiment, a bearing connected to the housing 1 is further included, and the rotating shaft 21 is rotatably connected to the housing 1 through the bearing. Figure 2 The bearing may include a first bearing 6 and a second bearing 7. Specifically, the first bearing 6 and the second bearing 7 are both connected to the housing 1. The rotating shaft 21 is connected to the first bearing 6 and the second bearing 7, so that the rotating shaft 21 is supported by the first bearing 6 and the second bearing 7, and the rotating shaft 21 is rotatably connected to the housing 1 through the first bearing 6 and the second bearing 7, so that the rotation of the rotating shaft 21 is more flexible and stable. The first bearing 6 is arranged on the side of the housing 1 away from the rotating shaft 21 for transmission connection to the external device, and one side of the first bearing 6 is exposed to the housing 1; the second bearing 7 is arranged in the housing 1.

[0046] In a specific embodiment, please refer to Figure 1 and Figure 2 , and also includes a transmission device 8, the input end of the transmission device 8 is connected to the end of the rotating shaft 21 extending out of the housing 1, and the output end of the transmission device 8 is used for connecting to an external device. In practical applications, the input end and the output end of the transmission device 8 can also be connected through a speed reduction mechanism 85.

[0047] Exemplarily, the input end of the transmission device 8 includes a first transmission wheel 81, a second transmission wheel 82 and a transmission belt 83, and the output end of the transmission device 8 includes a connection cover 84. Specifically, the first transmission wheel 81 is sleeved on one end of the rotating shaft 21 extending out of the housing 1, so that it can rotate synchronously with the rotating shaft 21. The first transmission wheel 81 and the second transmission wheel 82 are connected by a transmission belt 83 to achieve synchronous rotation at the same linear speed. Preferably, the radius of the second transmission wheel 82 is larger than that of the first transmission wheel 81. The other end of the second transmission wheel 82 is connected to the speed reduction mechanism 85, and the side of the speed reduction mechanism 85 away from the second transmission wheel 82 is connected to the connection cover 84, and the connection cover 84 is used to connect an external device.

[0048] The utility model also provides an exoskeleton device, including the electromagnetic resistance device with adjustable resistance size in any of the embodiments described above. The exoskeleton device is connected to the electromagnetic resistance device through transmission to provide the wearer with adjustable resistance size. The device has good flexibility and good user experience.

[0049] In summary, the utility model provides an electromagnetic resistance device and exoskeleton device with adjustable resistance, wherein the electromagnetic resistance device realizes the function of applying resistance to the conductive disk 22 during rotation by providing a permanent magnet component 3 and an electromagnetic stator 5 with adjustable magnetic field strength based on the principle of electromagnetic induction. In addition, based on the adjustable magnetic field strength of the electromagnetic stator 5, the user can change the resistance size of the conductive disk 22 by adjusting the magnetic field strength of the electromagnetic stator 5 according to his own situation and environmental conditions, and the device has good flexibility.

[0050] An exoskeleton device using the electromagnetic resistance device of the utility model can provide the wearer with resistance of adjustable size, thereby improving the flexibility of the exoskeleton device in resistance training and providing a good user experience.

[0051] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present utility model.

[0052] Those skilled in the art will appreciate that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0053] The above serial numbers of the utility model are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic resistance device with adjustable resistance, characterized in that: It comprises: a shell, and a rotor, a permanent magnet component, a magnetic conductive component and an electromagnetic stator with adjustable magnetic field strength arranged in the shell; The rotor comprises a rotating shaft and a conductive disk; the conductive disk is connected to the rotating shaft so as to coaxially rotate with the rotating shaft; the rotating shaft is positioned and connected to the housing and can rotate relative to the housing; one end of the rotating shaft extends out of the housing for transmission connection with an external device; The electromagnetic stator, the permanent magnet assembly and the magnetic conductive assembly are all fixed in the shell; the electromagnetic stator and the permanent magnet assembly are located on the same side or different sides of the conductive disk; the magnetic conductive assembly is arranged on one side of the permanent magnet assembly.

2. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: The electromagnetic stator includes a stator disk and a plurality of winding frames; the stator disk is connected to the shell; the plurality of winding frames are arranged at intervals along the circumferential direction on the side of the stator disk facing the conductive disk; the plurality of winding frames are each provided with a coil winding, and the coil winding is used to electrically connect to an external power supply.

3. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: The permanent magnet component comprises a plurality of permanent magnets, which are arranged at intervals on one side of the magnetic conductive component along a circumferential direction.

4. The electromagnetic resistance device with adjustable resistance according to claim 3, characterized in that: A plurality of limiting protrusions are further arranged on the side of the magnetic conductive component facing the permanent magnet, and limiting grooves are formed between adjacent limiting protrusions. The permanent magnet is arranged in the limiting groove and abuts against the limiting protrusions adjacent to the limiting protrusions.

5. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: The magnetic field direction of the electromagnetic stator is the same as or opposite to the magnetic field direction of the permanent magnet assembly.

6. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: The electromagnetic stator is located on one side of the conductive disk, the permanent magnet assembly is located on the other side of the conductive disk, and the side of the permanent magnet assembly facing away from the conductive disk is connected to the magnetic conductive assembly; there is a gap between the electromagnetic stator and the conductive disk, and between the conductive disk and the permanent magnet assembly.

7. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: It also includes a bearing connected to the housing, and the rotating shaft is rotatably connected to the housing through the bearing.

8. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: The electromagnetic stator and the housing, and / or the conductive disk and the rotating shaft, and / or the magnetic conductive component and the housing are connected by riveting.

9. The electromagnetic resistance device with adjustable resistance according to claim 1, characterized in that: It also includes a transmission device, wherein the input end of the transmission device is transmission-connected to one end of the rotating shaft extending out of the housing, and the output end of the transmission device is used for transmission connection to the external device.

10. An exoskeleton device, characterized in that: It comprises an electromagnetic resistance device with adjustable resistance as described in any one of claims 1 to 9.

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