Angle torque motor

Abstract

The utility model relates to the technical field of tensioners, and discloses an angle torque motor and a circuit thereof. The angle torque motor comprises a stator, wherein the stator is provided with an accommodating groove with a circular cross section; the rotor is rotationally arranged in the accommodating groove, the rotor comprises a rotating shaft and a magnet, and the magnet is in an oval column shape and is fixed to the peripheral side of the rotating shaft; and a plurality of groups of coils are symmetrically arranged on the stator. According to the angle torque motor, the motor structure is optimized, the coil is electrically connected through the circuit board to electrify the coil so as to generate an induced magnetic field, the magnetic circuit is more stable by arranging the side coil, the eddy current loss can be reduced, and thus the working efficiency of the angle torque motor is improved.

Description

Technical Field

[0001] This application relates to the technical field of tensioners, and particularly to an angular torque motor. Background Art

[0002] The tension device, also known as a tensioner, is a device widely used in the coil winding industry. Generally, it can be divided into an electronic tensioner and a servo tensioner according to different types. However, their tension structures are basically the same, and both are composed of a tension rod and a pulling spring, that is, one or more pulling springs are used to pull the tension rod to provide tension.

[0003] In the prior art, the motor uses a single-sided coil to wind the stator, resulting in relatively large eddy current losses, an unbalanced structure, and insufficient magnetic circuit stability. Therefore, the motor structure still needs to be optimized to reduce eddy current losses and improve the stability of the magnetic circuit. Summary of the Utility Model

[0004] The technical problem to be solved by this application is to optimize the motor structure to reduce eddy current losses and improve the stability of the magnetic circuit.

[0005] In a first aspect, to solve the above problems, this application provides an angular torque motor, including a stator provided with a receiving groove having a circular cross-section; a rotor rotatably disposed in the receiving groove, the rotor including a rotating shaft and a magnet, the magnet being in an elliptical column shape and fixed to the periphery of the rotating shaft; and a plurality of coils symmetrically disposed on the stator.

[0006] Preferably, the stator includes a first component and a second component that are centrosymmetric along the axis direction of the receiving groove, and the first component and the second component are joined together to form the stator.

[0007] Preferably, the stator is formed by stacking a plurality of laminated sheet groups, and each laminated sheet group is composed of two laminated sheets that are centrosymmetric along the axis direction of the receiving groove. Adjacent two laminated sheet groups are arranged with a 180° flip around the direction perpendicular to the axis of the receiving groove.

[0008] Preferably, the laminated sheet is provided with a winding portion, and a plurality of the winding portions of each laminated sheet group are symmetrically arranged, and a plurality of the winding portions of each laminated sheet group are stacked to form a plurality of symmetrically arranged winding columns, and a plurality of coils are respectively wound around the plurality of winding columns.

[0009] Preferably, it further includes a control module, the control module including a circuit board and an adjustment component, the circuit board being electrically connected to the coil, and the adjustment component being electrically connected to the circuit board and used for adjusting the magnitude of the current supplied by the circuit board to the coil.

[0010] Preferably, it further includes an angle sensor and an induction magnet. The angle sensor is disposed on the circuit board, the induction magnet is disposed at one end of the rotor close to the circuit board, and the angle sensor is directly opposite to the induction magnet.

[0011] In a second aspect, the present application also provides an angle torque motor circuit, which is applied to the above-mentioned angle torque motor. The circuit includes a main control module, an angle control module, an encoder module, a constant current control module, and a power supply module; the angle control module, the encoder module, and the constant current control module are all connected to the main control module; the power supply module is connected to an external power supply, and the power supply module is respectively connected to the main control module, the angle control module, the encoder module, and the constant current control module.

[0012] Compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0013] The present application optimizes the motor structure. The coil is energized through the circuit board to generate an induced magnetic field. The bilateral coils are symmetrically arranged to make the magnetic circuit more stable, which can reduce eddy current loss and thus improve the working efficiency of the angle torque motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall structure of the angle torque motor in the embodiment of the present application.

[0016] Figure 2 It is a schematic diagram of the assembly relationship between the stator, rotor, and coil in the embodiment of the present application.

[0017] Figure 3 It is a cross-sectional view of the assembly of the rotor and the stator in the embodiment of the present application.

[0018] Figure 4 It is a schematic diagram of the structure of the stator in the embodiment of the present application.

[0019] Figure 5 It is another schematic diagram of the structure of the stator in the embodiment of the present application.

[0020] Figure 6 It is a schematic diagram of the internal structure of the angle torque motor in the embodiment of the present application.

[0021] Figure 7 It is a circuit framework diagram of the angle torque motor circuit in the embodiment of the present application.

[0022] Explanation of the accompanying reference numerals: 1. stator; 11. accommodating groove; 12. lamination group; 121. lamination; 13. winding post; 131. winding portion; 14. limiting hole; 15. first component; 16. second component; 2. rotor; 21. rotating shaft; 22. magnet; 3. coil; 4. housing; 41. limiting post; 5. control module; 51. circuit board; 52. adjustment component; 6. angle sensor; 7. induction magnet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0025] It should also be understood that the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. Example 1

[0027] Please refer to Figures 1-6 The present invention provides an angular torque motor that can be used in a servo tension control device. The motor comprises a stator 1, a rotor 2, and multiple coils 3. A receiving slot 11 with a circular cross-section is provided through the middle of the stator 1. The rotor 2 is rotatably disposed in the receiving slot 11. The multiple coils 3 are symmetrically arranged on the stator 1.

[0028] Please refer to Figure 2 and Figure 3, in a specific embodiment, the rotor 2 includes a rotating shaft 21 and a magnet 22. Specifically, the magnet 22 is formed by splicing two magnet sheets with the same structure into an elliptical column shape. The magnet 22 is fixed on the periphery of the rotating shaft 21 along the axis direction of the rotating shaft 21, and there is a rotating gap between the magnet 22 and the stator 1, so that the rotor 2 reciprocally rotates and is arranged in the accommodating groove 11. Here, the output end of the rotor 2 is used to connect the tension rod of the servo tensioner. When the current generated by the energization of the coil 3 increases, the magnetic field strength of the magnet increases, and the reciprocating rotation angle of the rotor 2 increases. Furthermore, the reciprocating swing amplitude of the tension rod is increased, thereby optimizing the yarn tension. Preferably, the reciprocating rotation angle range of the rotor 2 is 0° - 90°, so as to prevent the rotor 2 from being difficult to reciprocate due to excessive rotation and reduce the working efficiency.

[0029] Please refer to Figure 4 , in a specific embodiment, the stator 1 includes a first component 15 and a second component 16 that are centrosymmetric along the axis direction of the accommodating groove 11. The first component 15 and the second component 16 are spliced to form the stator 1. Two groups of coils 3 are respectively wound around the first component 15 and the second component 16, and the two groups of coils 3 are symmetric.

[0030] Please refer to Figure 5 , in another specific embodiment, the stator 1 is formed by stacking a plurality of laminated sheet groups 12. Each laminated sheet group 12 is formed by splicing two laminated sheets 121 with the same structure in a centrosymmetric manner along the horizontal direction, and adjacent laminated sheet groups 12 are arranged by flipping 180° around a direction perpendicular to the axis of the accommodating groove 11, so that adjacent laminated sheet groups 12 are arranged in an interleaved manner. The two laminated sheets 121 in the same laminated sheet group 12 are not easily separated from each other under the clamping of adjacent laminated sheet groups 12, thereby improving the structural stability of the stator 1. Here, the laminated sheets 121 are set to have the same structure, and there is no need to open two molds to process different laminated sheets 121 during production, which improves the convenience of producing the laminated sheets 121 and reduces the production cost.

[0031] In a specific embodiment, a winding portion 131 is provided on one side of each laminated sheet 121. The multiple winding portions 131 in each laminated sheet group 12 formed by splicing two laminated sheets 121 are symmetrically arranged, and the multiple winding portions 131 of each laminated sheet group 12 are respectively stacked to form multiple symmetrically arranged winding columns 13. Multiple groups of coils 3 are respectively wound around the multiple winding columns 13. In this embodiment, two groups of coils 3 are provided. Two winding portions are symmetrically arranged in each laminated sheet group 12. The two winding portions 131 of each laminated sheet group 12 are respectively stacked to form two symmetrically arranged winding columns 13. The two groups of coils 3 are respectively wound around the two winding columns 13. When the coil 3 is energized, an induced magnetic field is generated. The magnetic circuit of the double-sided coils 3 arranged symmetrically is more stable, reducing the eddy current loss, thereby improving the working efficiency of the angle torque motor.

[0032] Please refer to Figure 2, in a specific embodiment, the angular torque motor further includes a housing 4, and the stator 1, the rotor 2 and the coil 3 are respectively accommodated in the housing 4. Further, the stator 1 is provided with a plurality of limiting holes 14 penetrating therethrough. Correspondingly, the limiting holes 14 are formed on the lamination 121. In this embodiment, each lamination group 12 is provided with four limiting holes 14, and the four limiting holes 14 are respectively located at the four corners of each lamination group 12. The limiting holes 14 in each lamination group 12 are stacked to form the limiting holes 14 of the stator 1; thus, the housing 4 is provided with limiting posts 41 corresponding to the positions and numbers of the limiting holes 14 of the four stators 1 one by one, and the limiting posts 41 penetrate through the limiting holes 14 to limit the stator 1, thereby improving the stability of the stator 1.

[0033] Please refer to Figure 6 , in a specific embodiment, the angular torque motor further includes a control module 5 provided in the housing 4. Specifically, the control module 5 includes a circuit board 51 and an adjustment component. Among them, the circuit board 51 is electrically connected to the coil 3 to energize the coil 3, thereby generating an induced magnetic field; the adjustment component 52 is electrically connected to the circuit board 51 and is used to adjust the magnitude of the current supplied by the circuit board 51 to the coil 3.

[0034] In a specific embodiment, the angular torque motor further includes an angle sensor 6 and an induction magnet 7. Specifically, the angle sensor 6 is provided on the side of the circuit board 51 close to the rotor 2, the induction magnet 7 is provided at one end of the rotor 2 close to the circuit board 51, and the angle sensor 6 is directly opposite to the induction magnet 7. Here, the rotation angle signal of the rotor 2 is sensed by the induction magnet 7, and the signal is input into the circuit board 51 through the angle sensor 6 to monitor the working state of the rotor 2. Embodiment Two

[0035] The embodiment of the present application also provides an angular torque motor circuit, and this angular torque motor circuit is applied to the control module 5 of the above-mentioned angular torque motor. Please refer to Figure 7 , Figure 7 is the circuit diagram of the angular torque motor circuit provided by the embodiment of the present invention.

[0036] In a specific embodiment, the angular torque motor circuit includes a main control module 100, an angle control module 200, an encoder module 300, a constant current control module 400 and a power supply module 500. Specifically, the angular torque motor circuit is arranged on the circuit board 51 of the control module 5.

[0037] Among them, the angle control module 200, the encoder module 300, and the constant current control module 400 are all connected to the main control module 100, and the operation of each module is controlled through the main control module 100; the power supply module 500 is connected to an external power supply, and the power supply module 500 is connected to the main control module 100, the angle control module 200, the encoder module 300, and the constant current control module 400 to supply power to the angle torque motor circuit.

[0038] It should be noted that the chips provided in this application are only examples, and those skilled in the art can also select other chips as needed. In addition, how to arrange each circuit on the circuit board is prior art, and this application does not make specific elaboration.

[0039] It should be noted that this application aims to protect the circuit structure. For the specific program control part inside the chip, those skilled in the art should select appropriate circuits and chips according to the chip models in this application or as needed and make appropriate programming to implement the corresponding program control functions in this utility model. Therefore, this part is a mature and established technology in the prior art and is not the focus of protection of this application. Therefore, this application does not make specific elaboration on this control part.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An angular torque motor, characterized in that, Comprising: A stator provided with a receiving groove having a circular cross-section; A rotor rotatably disposed in the receiving groove, the rotor comprising a rotating shaft and a magnet, the magnet being in the shape of an elliptical column, and the magnet being fixed to the periphery of the rotating shaft; Coils, multiple groups of which are symmetrically arranged on the stator.

2. The angular torque motor according to claim 1, wherein, The stator includes a first component and a second component that are centrosymmetric along the axis direction of the receiving groove, and the first component and the second component are assembled to form the stator.

3. The angular torque motor according to claim 1, characterized in that, The stator is formed by stacking a plurality of lamination groups, and each lamination group is formed by splicing two laminations that are centrosymmetric along the axis direction of the receiving groove, and adjacent two lamination groups are arranged by flipping 180° around a direction perpendicular to the axis direction of the receiving groove.

4. The angular torque motor according to claim 3, wherein, The lamination is provided with a winding portion, a plurality of the winding portions of each lamination group are symmetrically arranged, and a plurality of the winding portions of each lamination group are stacked to form a plurality of symmetrically arranged winding columns, and multiple groups of coils are respectively wound around the plurality of winding columns.

5. A kind of angular torque motor according to any one of claims 1-4, characterized in that, It further includes a control module, the control module comprising a circuit board and an adjustment component, the circuit board is electrically connected to the coils, and the adjustment component is electrically connected to the circuit board and is used to adjust the magnitude of the current supplied by the circuit board to the coils.

6. The angular torque motor according to claim 5, wherein, It further includes an angle sensor and an induction magnet, the angle sensor is disposed on the circuit board, the induction magnet is disposed at one end of the rotor close to the circuit board, and the angle sensor is directly opposite to the induction magnet.

7. The angular torque motor according to claim 1, wherein This angle torque motor is provided with an angle torque motor circuit, and the circuit includes a main control module, an angle control module, an encoder module, a constant current control module and a power supply module; The angle control module, the encoder module and the constant current control module are all connected to the main control module; The power supply module is connected to an external power supply, and the power supply module is respectively connected to the main control module, the angle control module, the encoder module and the constant current control module.

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