Fitness equipment construction with outer rotor motor

Abstract

The utility model discloses a fitness equipment structure with an outer rotor motor. The fitness equipment structure comprises a base frame; the force application unit is fixed on the base frame; the motor comprises an inner stator and an outer rotor, and the outer rotor is rotatably arranged on the base frame and surrounds the inner stator; the transmission part is connected with the force application unit and the outer rotor; a code disc rotates along with the outer rotor; the coding unit is fixed on the inner stator or the base frame and is used for reading rotation information of the coded disc; the control unit is connected with the motor and the coding unit and is used for receiving the rotation information; the control unit controls an electromagnetic field of the inner stator to enable the outer rotor to have rotation resistance, and the control unit can selectively change the intensity of the electromagnetic field according to a preset program and the rotation information to enable the rotation resistance to be changed.

Description

Technical Field

[0001] The utility model relates to a structure of fitness equipment with multiple training modes for selection, and a transmission member is directly connected between a transmission wheel and an outer rotor to transmit and receive rotation resistance. Background Art

[0002] At present, fitness equipment such as flywheels and exercise bikes generally used for exercise and fitness mainly use a resistance generating device to set a resistance value through manual control, and the resistance value can be adjusted according to the user's exercise requirements. However, once the adjustment is fixed, the user uses the resistance value to exercise. During the exercise, the resistance value cannot be adjusted arbitrarily unless the exercise is stopped and the resistance value can be adjusted again after it is completely still. Therefore, it is not convenient to use.

[0003] Therefore, there is the patent case of utility model No. CN208770756 "A fitness bike control system with automatic resistance adjustment" announced by China on April 23, 2019. It discloses: including a flywheel, a resistance device, a resistance control device and an instrument. The resistance device is installed at the flywheel and can be close to or away from the flywheel. The resistance control device is connected to the instrument and the resistance device. It can control the position of the resistance device relative to the flywheel to obtain the resistance gear information and display it on the instrument. The resistance control device includes an encoder and a motor, a gear transmission structure and a screw sleeve device connected in sequence. The screw sleeve device is connected to the above-mentioned resistance device, and the encoder is installed on the motor to obtain the motor speed. Connecting with the communication terminal device through Bluetooth and USB interface transmission mode can enable users to obtain the current speed, distance, calories and power in real time.

[0004] However, the motor of the patent case is an inner rotor motor structure, and the resistance is transmitted by driving the screw sleeve device through the gear transmission mechanism, rather than directly transmitting it to the user's force application position, which results in a relatively increased number of assembled components, a larger overall volume, and a larger occupied space. In addition, during the resistance transmission process, there will also be losses due to the friction of the gear transmission mechanism, resulting in inaccurate resistance values.

[0005] There is also a new patent case of "Sports Fitness Bike" No. M341528 announced by Taiwan, China on October 1, 2008. It discloses: With a DC motor as the driving core and a circuit control loop, athletes who need passive exercise effects can drive the pedaling group through the DC motor, just like the characteristics of an electric motor, and adjust the different speed levels through a control device to produce an assisted exercise effect. On the contrary, if the user needs exercise resistance load, the control device can be switched to a human input power generation mode, just like the characteristics of a generator, and different resistance values ​​can be adjusted at the same time, so that the user can feel the changes in different levels when pedaling; and the user can also make adjustments in both directions such as up and down and front and back according to the difference in height and body length through the setting of the seat device when using it, so as to achieve a better exercise posture of human movement ergonomics.

[0006] The DC motor of the patent case is also an inner rotor motor structure, and the resistance between the DC motor and the pedal group is transmitted through a secondary transmission group. The secondary transmission group is composed of a large pulley, two flywheels and a transmission belt. It is not directly transmitted to the user's force application position. It also makes the assembled components relatively more, the overall volume becomes larger, and a larger space is required. In addition, during the process of resistance transmission, it will also be lost due to the friction of the gear transmission mechanism, resulting in inaccurate resistance value, so it is not ideal in use. Utility Model Content

[0007] Therefore, in view of the above-mentioned shortcomings of the motor resistance structure of the current fitness equipment, the purpose of the present utility model is to provide a fitness equipment structure with an outer rotor motor.

[0008] The utility model provides a fitness equipment structure with an outer rotor motor, which comprises: a base frame; a force-applying unit fixed to the base frame; a motor comprising an inner stator and an outer rotor, the inner stator being fixed to the base frame, and the outer rotor being rotatably arranged on the base frame and surrounding the inner stator; a transmission member connecting the force-applying unit and the outer rotor; a code disk fixed to the outer rotor and rotating with the outer rotor; an encoding unit fixed to the inner stator or the base frame, and the encoding unit reading a rotation information of the code disk; a control unit connected to the motor and the encoding unit, and the control unit receiving the rotation information; the control unit controls an electromagnetic field of the inner stator so that the outer rotor has a rotation resistance, and the control unit changes the rotation resistance by changing the intensity of the electromagnetic field.

[0009] The force applying unit comprises at least one rotatable force applying member, and the force applying member is connected to the outer rotor through the transmission member.

[0010] The side edge of the outer rotor forms a side wheel, the transmission member is a closed belt, one end of the belt is sleeved on the force applying unit, and the other end of the belt is directly sleeved on the periphery of the side wheel.

[0011] The control unit controls the electromagnetic field to form a fixed mode, and the control unit controls the intensity of the electromagnetic field to remain unchanged so that the rotation resistance is a fixed value.

[0012] The control unit controls the electromagnetic field to be in a gradual change mode. The control unit controls the intensity of the electromagnetic field to gradually become stronger or weaker, so that the rotation resistance gradually becomes stronger or weaker.

[0013] The control unit controls the electromagnetic field to be in a multi-stage mode, wherein the multi-stage mode has a plurality of stages. The control unit controls the intensity of the electromagnetic field in any stage to be different from that in adjacent stages.

[0014] The control unit controls the electromagnetic field to a safety mode, and the control unit controls the intensity of the electromagnetic field not to exceed an upper limit value.

[0015] The control unit controls the electromagnetic field to be in a random mode, and the control unit controls the intensity of the electromagnetic field to change randomly.

[0016] The control unit controls the electromagnetic field to be in an intelligent mode, and the control unit controls the intensity of the electromagnetic field to automatically change according to the rotation information.

[0017] The inner stator comprises a plurality of magnetic poles, the plurality of magnetic poles are wound with a plurality of coils, and the outer rotor is surrounded by a plurality of magnets corresponding to the plurality of magnetic poles.

[0018] The motor is a brushless DC motor.

[0019] The above technical features have the following advantages:

[0020] 1. The control unit can obtain rotation information including the speed, rotation position and rotation angle of the outer rotor by rotating the code disc relative to the encoding unit. Then, according to the selected training mode, the intensity of the electromagnetic field can be selectively changed to change the size of the rotation resistance to meet the training needs of the operator.

[0021] 2. There are a variety of training modes to choose from during fitness training, including fixed mode, gradual mode, multi-segment mode, safety mode, random mode or intelligent mode, which can be changed according to the operator's training needs.

[0022] 3. A motor with an outer rotor structure is used, and a plurality of magnetic poles are arranged on the periphery of the inner stator. The plurality of magnetic poles are wound with coils to generate an electromagnetic field. The inner periphery of the outer rotor is also arranged with corresponding plurality of magnets. The outer rotor rotates relative to the inner stator, so that the outer rotor has a rotational resistance. Two force-applying members can be stepped on by both feet at the same time, or held by both hands at the same time, so as to perform force training in a rotary or reciprocating manner, and the rotational resistance is then fed back to the two force-applying members through a transmission member, thereby producing a training effect for both feet or both hands.

[0023] 4. Further, the matching transmission member is directly connected to the transmission wheel and the outer rotor to transmit and receive the rotational resistance. There is no need to transmit and receive the rotational resistance through the connecting gear set or the speed change mechanism. This can make the assembled components relatively less, the overall volume smaller, and the occupied space relatively small. In addition, in the process of transmitting the rotational resistance, there will be no loss due to the friction of the gear set or the speed change mechanism, resulting in inaccurate resistance value. The rotational resistance can be applied more accurately for training. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional appearance diagram of an embodiment of the utility model.

[0025] Figure 2 It is a side view of an embodiment of the utility model.

[0026] Figure 3 It is a top view of an embodiment of the utility model.

[0027] Figure 4 It is a cross-sectional view of the motor structure of an embodiment of the utility model.

[0028] Figure 5 For the utility model embodiment Figure 4 An enlarged schematic diagram of part V in FIG.

[0029] Figure 6 It is a schematic diagram of a magnetic pole winding coil according to an embodiment of the utility model.

[0030] Figure 7 It is a schematic diagram of the use of an embodiment of the utility model.

[0031] Explanation of the reference numerals: 1-base frame; 11-first support rod; 12-second support rod; 13-handle frame; 14-support rod; 15-cushion; 2-force unit; 21-transmission wheel; 22-force member; 3-motor; 31-inner stator; 32-outer rotor; 33-shaft; 34-bearing; 35-magnetic pole; 36-coil; 37-magnet; 38-side wheel; 4-transmission member; 5-code disk; 6-encoding unit; 61-reading head; 7-control unit; 71-control panel; A-operator. DETAILED DESCRIPTION

[0032] In the following embodiments of the present invention, if left, right, front, back, up, down, etc. are mentioned, they are based on the operator A (see Figure 7 The user (as shown) sits on the seat 15 of the base frame 1 of the present invention, and the relative position recognized by the operator looking straight ahead is based on the operator himself. The direction term is only used to facilitate the description of the present invention and does not limit the spatial form of the present invention. The fitness equipment referred to in the present invention can be a fitness bike or a flywheel.

[0033] See also Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the utility model includes: a base frame 1, a force application unit 2, a motor 3, a transmission member 4, a code disk 5, an encoding unit 6 and a control unit 7, wherein:

[0034] A base frame 1 includes a first support rod 11 and a second support rod 12 connected and supported on the ground. The front end of the second support rod 12 is connected to a handle frame 13, and the middle section of the second support rod 12 is connected to a support rod 14, and the top end of the support rod 14 is provided with a cushion 15.

[0035] A force-applying unit 2 is fixed to the base frame 1. The force-applying unit 2 includes a transmission wheel 21 and at least one rotatable force-applying member 22. The transmission wheel 21 is pivoted on the second support rod 12 of the base frame 1 and can pivot relative to the second support rod 12. The embodiment of the utility model is provided with two force-applying members 22 coaxially connected to the transmission wheel 21 in a left-right symmetrical manner, so that applying force to the two force-applying members 22 can drive the transmission wheel 21 to rotate. The two force-applying members 22 can be rotating foot pedals, rotating hand joysticks or reciprocating operating members, respectively, so that both feet can step on them at the same time, or both hands can hold them at the same time, and apply force in a rotating or reciprocating manner.

[0036] A motor 3, such as Figure 4 , Figure 5 and Figure 6As shown, the motor 3 comprises an inner stator 31 and an outer rotor 32. The motor 3 is a direct current brushless motor. The inner stator 31 is fixed to the first support rod 11 of the base frame 1 through a shaft 33. The two sides of the outer rotor 32 are respectively sleeved with a bearing 34. The two bearings 34 are fixed to the shaft 33, so that the outer rotor 32 is rotatably arranged on the first support rod 11 of the base frame 1 and rotates around the inner stator 31. A plurality of magnetic poles 35 are arranged on the periphery of the inner stator 31. The plurality of magnetic poles 35 are wound with coils 36 to generate an electromagnetic field. The inner periphery of the outer rotor 32 is also arranged with corresponding plurality of magnets 37. When the outer rotor 32 rotates relative to the inner stator 31, the magnetic force of the plurality of magnets 37 interacts with the electromagnetic field, so that the outer rotor 32 has a rotation resistance. One side edge of the outer rotor 32 forms a side wheel 38.

[0037] A transmission member 4 connects the transmission wheel 21 of the force applying unit 2 and the outer rotor 32. The force applying unit 22 is connected to the outer rotor 32 through the transmission member 4. The transmission member 4 is a closed belt, one end of which is sleeved on the periphery of the transmission wheel 21 of the force applying unit 2, and the other end of which is directly sleeved on the periphery of the side wheel 38.

[0038] A code disk 5, such as Figure 5 As shown, the encoder 5 is fixed to the other side edge of the outer rotor 32 and rotates together with the outer rotor 32. The encoder 5 can provide rotation information including the rotation speed, rotation position and rotation angle of the outer rotor 32.

[0039] An encoding unit 6 is fixed to the inner stator 31 or the base frame 1, and the encoding unit 6 reads the rotation information of the code disk 5. The encoding unit 6 is an optical encoder, a circuit board made according to optical and photoelectric principles. The encoding unit 6 is provided with at least one reading head 61 relative to the code disk 5, so as to read the rotation information including the rotation speed, rotation position and rotation angle of the outer rotor 32.

[0040] A control unit 7 is fixed to the base frame 1. The control unit 7 can be connected to a control panel 71 by signal. The control panel 71 is arranged on the grip frame 13. The control unit 7 is connected to the motor 3 and the encoding unit 6 by signal to receive the rotation information. The control unit 7 can control the electromagnetic field generated by the inner stator 31 so that the outer rotor 32 has the rotation resistance. The control unit 7 can selectively change the intensity of the electromagnetic field according to a preset program and the rotation information to change the rotation resistance. The control unit 7 can selectively control the electromagnetic field to form a fixed mode, a gradual mode, a multi-stage mode, a safe mode, a random mode or an intelligent mode to meet the training needs of different operators.

[0041] When using, Figure 1 , Figure 4 and Figure 7 As shown, an operator A can sit on the cushion 15 of the base frame 1, hold the handle frame 13 with both hands, and then step on the two force-applying members 22 with both feet. Then, according to the physical load of the operator A, the desired fitness training mode is selected in advance, and the control panel 71 of the control unit 7 is input and selected to control the electromagnetic field to form a fixed mode, a gradual mode, a multi-stage mode, a safety mode, a random mode or an intelligent mode. Then, the two force-applying members 22 are driven by the two feet to start stepping in turn, and the two force-applying members 22 are used to rotate the transmission wheel 21, and the transmission wheel 21 drives the outer rotor 32 to rotate through the transmission member 4. When the outer rotor 32 rotates relative to the inner stator 31, the outer rotor 32 has the rotation resistance, and then the transmission member 4 is fed back to the two force-applying members 22, so that the feet of the operator A are trained. The control unit 7 can rotate relative to the encoding unit 6 via the code disk 5 , and the rotation information including the rotation speed, rotation position and rotation angle of the outer rotor 32 can be read by the reading head 61 .

[0042] like Figure 4 and Figure 5 As shown, when the outer rotor 32 rotates relative to the inner stator 31, the encoder unit 6 can use the read head 61 to read the rotation information of the code disc 5 including the rotation speed, rotation position and rotation angle of the outer rotor 32. Figure 1 , Figure 4 and Figure 7 As shown, the control unit 7 can selectively change the strength of the electromagnetic field according to the training mode selected by the operator A to change the size of the rotational resistance to meet the training needs of the operator A. During the training process, if the operator A wants to change to other training modes, he can input and select a fixed mode, a gradual mode, a multi-stage mode, a safe mode, a random mode or an intelligent mode through the control panel 71 of the control unit 7. For example, when the fixed mode is selected, the control unit 7 controls the strength of the electromagnetic field to remain unchanged to simulate the fixed resistance of the fitness bike, so that the rotational resistance becomes a fixed value, and the fixed value can be adjusted in multiple stages in conjunction with the rotational resistance, and different fixed value sizes can be selected to change in accordance with the training needs of the operator A.

[0043] When the operator A selects the gradual change mode, the control unit 7 controls the intensity of the electromagnetic field to gradually increase or decrease, so that the rotational resistance becomes gradually stronger or weaker, so that the operator A can simulate the inertia change generated by the flywheel vehicle from static to dynamic, or simulate the inertia change generated by the flywheel vehicle from dynamic to static.

[0044] When operator A selects the multi-stage mode, the multi-stage mode has multiple stages. The control unit 7 controls the intensity of the electromagnetic field to provide different rotational resistances in any stage and in adjacent stages, so as to simulate that the actual bicycle receives different rotational resistances when traveling on uphill, flat and downhill sections, thereby achieving a comprehensive riding training effect.

[0045] When the operator A selects the safety mode, the control unit 7 controls the strength of the electromagnetic field to not exceed an upper limit value, so as to limit the strength of the rotation resistance according to the pedaling limit of the operator A, thereby preventing the operator A from suffering sports injuries due to excessive physical load.

[0046] When the operator A selects the random mode, the control unit 7 controls the intensity of the electromagnetic field to change randomly and arbitrarily, so as to simulate the actual riding effect of a bicycle running on a road section with different continuous slopes and producing different rotation resistances.

[0047] When operator A selects the intelligent mode, the control unit 7 controls the intensity of the electromagnetic field to automatically change with the rotation information. Since the rotation information includes information such as the rotation speed, rotation position and rotation angle of the outer rotor 32, it can be used for beginners to simulate the situation when they just start riding a bicycle. When they have plenty of physical strength, they adjust the rotation resistance to be stronger. When their physical strength declines in the middle of riding, they adjust the rotation resistance to be weaker. Finally, when their physical strength is about to be exhausted, they adjust the rotation resistance to be the weakest. The size of the rotation resistance can be changed intelligently according to the physical strength changes of the operator A, and similarly, it can avoid exceeding the physical load and suffering sports injuries.

[0048] like Figure 4 and Figure 5 As shown, the utility model utilizes the structure of the motor 3 adopting the outer rotor 32, and then cooperates with the transmission member 4 to be directly connected to the transmission wheel 21 and the outer rotor 32 to transmit and receive the rotational resistance. There is no need to transmit and receive the rotational resistance through a connecting gear set or a speed change mechanism, which can make the assembled components relatively less, the overall volume smaller, and the occupied space relatively small. In addition, in the process of transmitting the rotational resistance, there will be no loss due to the friction of the gear set or the speed change mechanism, resulting in inaccurate resistance value, and the rotational resistance can be applied more accurately for training.

[0049] Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. That is, simple equivalent changes and modifications made according to the claims and the description of the present invention are all within the scope of the present invention.

Claims

1. A fitness equipment structure with an outer rotor motor, characterized in that: Contains: a base frame; A force applying unit fixed to the base frame; A motor comprising an inner stator and an outer rotor, wherein the inner stator is fixed to the base frame, and the outer rotor is rotatably disposed on the base frame and surrounds the inner stator; a transmission member, connecting the force applying unit and the outer rotor; a code disc, fixed to the outer rotor and rotating together with the outer rotor; An encoding unit is fixed to the inner stator or the base frame, and the encoding unit reads a rotation information of the code disk; a control unit connected to the motor and the encoding unit, the control unit receiving the rotation information; The control unit controls an electromagnetic field of the inner stator so that the outer rotor has a rotation resistance. The control unit changes the rotation resistance by changing the intensity of the electromagnetic field.

2. The fitness equipment structure with an outer rotor motor as claimed in claim 1, characterized in that: The force applying unit includes at least one force applying member capable of rotating, and the force applying member is connected to the outer rotor through the transmission member.

3. The fitness equipment structure with an outer rotor motor as claimed in claim 1, characterized in that: The side edge of the outer rotor forms a side wheel, the transmission member is a closed belt, one end of the belt is sleeved on the force applying unit, and the other end of the belt is directly sleeved on the periphery of the side wheel.

4. The fitness equipment structure with an outer rotor motor as claimed in claim 1, characterized in that: The control unit controls the electromagnetic field to form a fixed mode, and the control unit controls the intensity of the electromagnetic field to remain unchanged so that the rotation resistance is a fixed value.

5. The fitness equipment structure with an outer rotor motor as claimed in claim 1, characterized in that: The control unit controls the electromagnetic field to be in a gradual change mode. The control unit controls the intensity of the electromagnetic field to gradually become stronger or weaker, so that the rotation resistance gradually becomes stronger or weaker.

6. The fitness equipment structure with an outer rotor motor according to claim 1, characterized in that: The control unit controls the electromagnetic field to be in a multi-stage mode, wherein the multi-stage mode has a plurality of stages. The control unit controls the intensity of the electromagnetic field in any stage to be different from that in adjacent stages.

7. The fitness equipment structure with an outer rotor motor according to claim 1, characterized in that: The control unit controls the electromagnetic field to a safety mode, and the control unit controls the intensity of the electromagnetic field not to exceed an upper limit value.

8. The fitness equipment structure with an outer rotor motor according to claim 1, characterized in that: The control unit controls the electromagnetic field to be in a random mode, and the control unit controls the intensity of the electromagnetic field to change randomly.

9. The fitness equipment structure with an outer rotor motor according to claim 1, characterized in that: The control unit controls the electromagnetic field to be in an intelligent mode, and the control unit controls the intensity of the electromagnetic field to automatically change according to the rotation information.

10. The fitness equipment structure with an outer rotor motor according to claim 1, characterized in that: The inner stator comprises a plurality of magnetic poles, and a plurality of coils are wound around the plurality of magnetic poles. The outer rotor is surrounded by a plurality of magnets corresponding to the plurality of magnetic poles.

11. The fitness equipment structure with an outer rotor motor according to claim 1, characterized in that: The motor is a brushless DC motor.

Images