Driving assembly and disc player using same

Abstract

The invention discloses a driving assembly and a disc player using the same. The driving assembly comprises a motor, a suspension fixing frame and a rotating shaft. The motor is fixedly arranged on the motor fixing support, and a rotor magnet is fixedly arranged on a rotor of the motor; the rotating shaft is arranged in the rotating shaft fixing hole of the suspension fixing frame and can rotate in the rotating shaft fixing hole; a first magnet is fixedly arranged at one end of the rotating shaft extending into the suspension fixing frame; the first magnet and the rotor magnet attract each other; a fixing frame magnet is arranged on the end face of the side, away from the rotor, of the suspension fixing frame, and the rotating shaft is sleeved with a second magnet repelling the fixing frame magnet. According to the driving assembly, the fixing frame magnet is arranged on the suspension fixing frame so as to provide suspension force for the rotating shaft through magnetic mutual exclusion, the rotor magnet and the first magnet are arranged to attract each other so as to drive the rotating shaft to rotate in a motor direct drive and non-contact mode, and the rotating shaft rotates in a suspension mode so as to greatly reduce friction force in the rotating process; and the stability of driving the film to rotate is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of driving mechanisms, and in particular to a driving component and a record player using the driving component. Background Art

[0002] During operation, the record player needs to use a driver to drive the film to rotate. The rotation speed of the film during normal playback is usually 33.3 rpm or 45 rpm. The conventional driver drives the film to rotate through a belt transmission. The speed of the driver is usually around 1000-2000 rpm. In order to meet the speed requirements of the film, a reducer is required to reduce the speed of the driver output to 33.3 rpm or 45 rpm. Although the prior art can reduce speed and meet the use requirements of the film, the combination of the belt and the reducer can easily cause film jitter and unstable speed. Therefore, the driver used for the record player in the prior art method has the problem of poor driving stability. Summary of the invention

[0003] The embodiments of the present invention provide a driving assembly and a record player using the driving assembly, aiming to solve the problem of poor driving stability of the driver used for the record player in the prior art method.

[0004] In a first aspect, an embodiment of the present application provides a driving assembly, which includes a motor, a suspension fixing frame and a rotating shaft;

[0005] The motor is fixedly arranged on a motor fixing bracket, and a rotor magnet is fixedly arranged on the rotor of the motor;

[0006] The rotating shaft is arranged in the rotating shaft fixing hole of the suspension fixing frame, and the rotating shaft can rotate in the rotating shaft fixing hole;

[0007] A first magnet is fixedly disposed on one end of the rotating shaft extending into the suspension fixing frame; the first magnet is attracted to the rotor magnet;

[0008] A fixing frame magnet is arranged on the end surface of the suspension fixing frame on the side facing away from the rotor, and a second magnet which repel the fixing frame magnet mutually is sleeved on the rotating shaft.

[0009] In a second aspect, an embodiment of the present application further provides a record player, wherein the record player comprises the drive assembly as described in the first aspect above, and the record player further comprises a bottom plate, a cover plate and a tonearm;

[0010] The suspension fixing frame and the motor fixing bracket are fixedly connected to the two side surfaces of the base plate respectively, the cover plate covers the top of the suspension fixing frame, the upper end of the rotating shaft extends out from the cover plate through hole provided on the cover plate, and the tonearm is fixedly provided on the upper end surface of the base plate and is located on one side of the cover plate.

[0011] The embodiment of the present invention provides a driving component and a record player using the driving component, the driving component includes a motor, a suspension fixing frame and a rotating shaft; the motor is fixedly arranged on the motor fixing bracket, and a rotor magnet is fixedly arranged on the rotor of the motor; the rotating shaft is arranged in the rotating shaft fixing hole of the suspension fixing frame, and the rotating shaft can rotate in the rotating shaft fixing hole; a first magnet is fixedly arranged on one end of the rotating shaft extending into the suspension fixing frame; the first magnet attracts the rotor magnet; a fixing frame magnet is arranged on the end face of the suspension fixing frame on the side away from the rotor, and a second magnet that repel the fixing frame magnet is sleeved on the rotating shaft. The above-mentioned driving component provides a suspension force for the rotating shaft through magnetic repulsion by arranging a fixing frame magnet on the suspension fixing frame, and drives the rotating shaft to rotate by direct drive of the motor and contactless mode by arranging the rotor magnet and the first magnet to attract each other, so that the rotating shaft is suspended and rotated, thereby greatly reducing the friction force during the rotation process, avoiding the jitter of the film during the rotation process, and improving the stability of the rotation speed during the rotation process, that is, greatly improving the stability of driving the film to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0013] Figure 1 A cross-sectional structural diagram of a drive assembly provided in an embodiment of the present invention;

[0014] Figure 2 An overall structural diagram of a record player provided by an embodiment of the present invention;

[0015] Figure 3 A cross-sectional structural diagram of a record player provided in an embodiment of the present invention.

[0016] Figure numerals: 10, motor; 11, motor fixing bracket; 101, rotor; 102, stator; 103, rotor magnet; 20, rotating shaft; 30, suspension fixing frame; 201, first magnet; 202, second magnet; 302, fixing frame magnet; 211, annular connector; 212, annular flange; 303, concave cavity; 304, cylinder; 305, copper sleeve; 111, rotor shaft; 41, bottom plate; 42, cover plate; 43, tonearm. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0019] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present 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. It should also be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0020] See also Figure 1 As shown in the figure, the embodiment of the present application discloses a driving component, which includes a motor 10, a suspension fixing frame 30 and a rotating shaft 20; the motor 10 is fixedly set on the motor fixing bracket 11, and a rotor magnet 103 is fixedly set on the rotor 101 of the motor 10; the rotating shaft 20 is set in the rotating shaft 20 fixing hole of the suspension fixing frame 30, and the rotating shaft 20 can rotate in the rotating shaft 20 fixing hole; one end of the rotating shaft 20 extending into the suspension fixing frame 30 is fixedly provided with a first magnet 201; the first magnet 201 is attracted to the rotor magnet 103; a fixing frame magnet 302 is provided on the end surface of the suspension fixing frame 30 on the side away from the rotor 101, and a second magnet 202 that repel each other with the fixing frame magnet 302 is sleeved on the rotating shaft 20.

[0021] The rotor 101 is assembled on the stator 102, and the stator 102 is fixed on the motor fixing bracket 11, so the rotor 101 can be driven to rotate after power is turned on. The lower end of the rotating shaft 20 is provided with a first magnet 201, and the first magnet 201 attracts the magnet of the rotating shaft 20, so when the rotor 101 rotates, the rotating shaft 20 can be driven to rotate synchronously by magnetic attraction. The suspension fixing frame 30 is provided with a fixing frame magnet 302, and the fixing frame magnet 302 and the second magnet 202 repel each other, so a thrust that pushes the rotating shaft 20 to suspend upward can be generated by the repulsive force between the magnets; the first magnet 201 at the lower end of the rotating shaft 20 does not contact the rotor magnet 103, the second magnet 202 in the middle of the rotating shaft 20 does not contact the fixing frame magnet 302, and only the outer wall of the rotating shaft 20 contacts the fixing hole of the rotating shaft 20, so the rotating shaft 20 is in a suspended state as a whole, so as to reduce the friction during the rotation of the rotating shaft 20 and avoid shaking during the rotation of the rotating shaft 20. At the same time, the rotating shaft 20 is driven to rotate synchronously by the magnetic attraction between the rotor magnet 103 and the first magnet 201 , and the rotation speed of the first magnet 201 is the same as that of the rotor magnet 103 , thereby improving the stability of the rotation speed during the rotation process.

[0022] In a more specific embodiment, the fixing frame magnet 302, the rotor magnet 103, the first magnet 201 and the second magnet 202 are all annular magnets of the same size; two magnetic poles are formed on the two sides of the annular magnet. Specifically, the end of the rotating shaft 20 extending into the suspension fixing frame 30 is provided with an annular connector 211, and the first magnet 201 is embedded in the outer side of the annular connector 211 for fixing. The middle part of the rotating shaft 20 protrudes outward to form an annular flange 212, and the second magnet 202 is embedded in the outer side of the annular flange 212 for fixing.

[0023] Furthermore, in order to improve the use effect of the magnets, the sizes of the fixed frame magnet 302, the rotor magnet 103, the first magnet 201 and the second magnet 202 can be set to be the same, and each magnet is set to be a ring magnet. The specific setting structure is as follows: Figure 1 As shown. The first magnet 201 and the magnet of the rotating shaft 20 can generate magnetic attraction on the entire annular surface, further enhancing the magnetic attraction, thereby improving the stability of the synchronous rotation of the rotating shaft 20 driven by the magnetic attraction. Similarly, the second magnet 202 and the fixed frame magnet 302 can generate mutual repulsion on the entire annular surface, thereby making the suspension state of the rotating shaft 20 more stable and preventing the rotating shaft 20 from shifting to one side and shaking.

[0024] Furthermore, in order to achieve a stable fixation of the first magnet 201, an annular connector 211 may be provided at the end of the rotating shaft 20 that penetrates into the suspension fixing frame 30. The cross section of the annular connector 211 is a "U" shape. The specific shape is as follows: Figure 1As shown, the first magnet 201 can be sleeved and fixed on the outer side of the annular connector 211. There is a gap between the annular connector 211 and the rotor magnet 103; there is a gap between the annular connector 211 and the suspension fixing frame 30 and between the first magnet 201 and the suspension fixing frame 30.

[0025] An annular flange 212 protruding outward may be provided in the middle of the rotating shaft 20. The specific structure is as follows: Figure 1 As shown, the second magnet 202 can be nested and fixed on the outer side of the annular flange 212. There is a gap between the annular flange 212 and the fixing frame magnet 302.

[0026] In a more specific embodiment, the top surface of the suspension fixing frame 30 is recessed inward to form a cavity 303 for setting the fixing frame magnet 302. A cylinder 304 parallel to the axial direction of the rotating shaft 20 is provided at the through hole in the center of the cavity 303; a copper sleeve 305 is fixedly provided in the cylinder 304; and the rotating shaft 20 is provided in the rotating shaft 20 fixing hole of the copper sleeve 305.

[0027] Furthermore, a concave cavity 303 formed by an inward depression can be provided on the top surface of the suspension fixing frame 30, and the concave cavity 303 is arranged around the periphery of the fixing hole of the rotating shaft 20, and the fixing frame magnet 302 can be fixed and assembled more stably through the concave cavity 303. Furthermore, a cylinder 304 can be provided in the through hole in the center of the concave cavity 303, and the axial direction of the cylinder 304 is parallel to the axial direction of the rotating shaft 20, that is, the wall surface of the cylinder 304 is parallel to the axial direction of the rotating shaft 20. A copper sleeve 305 is fixedly provided in the cylinder 304, and the length of the copper sleeve 305 is not less than the length of the cylinder 304, and the rotating shaft 20 is provided in the fixing hole of the rotating shaft 20 in the center of the copper sleeve 305; the copper sleeve 305 is used to limit the rotating shaft 20, so that the stability of the fixing of the rotating shaft 20 can be improved.

[0028] In a more specific embodiment, the motor fixing bracket 11 is fixedly connected to the suspension fixing bracket 30. In order to improve the stability of the motor 10 driving the rotating shaft 20 to rotate, the motor 10 fixing bracket and the suspension fixing bracket 30 can be fixedly connected. The specific setting structure is as follows: Figure 1 shown.

[0029] In a more specific embodiment, the motor 10 includes a stator 102 fixedly mounted on the motor fixing bracket 11 and a rotor 101 mounted on the stator 102; a stator 102 through hole is provided in the center of the stator 102, and the rotor 101 is a semi-enclosed structure wrapped around the outer periphery of the stator 102; a rotor shaft 111 is provided on a side of the rotor 101 facing the stator 102, and the rotor shaft 111 is mounted in the stator 102 through hole; a rotor magnet 103 is provided on a side of the rotor 101 away from the rotor shaft 111. The motor 10 is a brushless motor 10.

[0030] Furthermore, in order to improve the working stability of the motor 10, a through hole of the stator 102 may be provided in the center of the stator 102, and the rotor 101 may be provided as a semi-enclosed structure, and a rotor shaft 111 may be provided on one side of the rotor 101 facing the stator 102, and the rotor shaft 111 may be assembled in the through hole of the stator 102, so that the stator 102 drives the rotor 101 to rotate stably along the rotor shaft 111, thereby avoiding the situation of swinging and tilting during the rotation of the rotor 101. Furthermore, the motor 10 may be provided as a brushless motor 10, thereby further improving the working stability and reliability of the motor 10.

[0031] The embodiment of the present invention further provides a record player, wherein Figure 2 and Figure 3 As shown, the record player includes the driving assembly as described in the above embodiment, and the record player also includes a bottom plate 41, a cover plate 42 and a tonearm 43; the suspension fixing frame 30 and the motor fixing bracket 11 are fixedly connected to the two side surfaces of the bottom plate 41 respectively, the cover plate 42 covers the top of the suspension fixing frame 30, the upper end of the rotating shaft 20 extends out from the cover plate through hole provided on the cover plate 42, and the tonearm 43 is fixedly provided on the upper end surface of the bottom plate 41 and is located on one side of the cover plate 42.

[0032] The record player in the present application uses the above-mentioned driving assembly to drive the film to rotate. Specifically, the motor 10 fixing frame is fixedly arranged on the bottom surface of the bottom plate 41, and the suspension fixing frame 30 is fixedly arranged on the top surface of the bottom plate 41. A through hole is provided in the center of the bottom plate 41 to accommodate the motor 10 and the rotating shaft 20. The cover plate 42 covers the top of the suspension fixing frame 30, and a cover plate through hole is provided on the cover plate 42, and the upper end of the rotating shaft 20 extends out from the cover plate through hole. The tone arm 43 is provided on one side of the cover plate 42.

[0033] In the drive assembly and the record player using the drive assembly provided in the embodiment of the present invention, the drive assembly includes a motor 10, a suspension fixing frame 30 and a rotating shaft 20; the motor 10 is fixedly arranged on the motor fixing bracket 11, and a rotor magnet 103 is fixedly arranged on the rotor 101 of the motor 10; the rotating shaft 20 is arranged in the rotating shaft 20 fixing hole of the suspension fixing frame 30, and the rotating shaft 20 can rotate in the rotating shaft 20 fixing hole; a first magnet 201 is fixedly arranged at one end of the rotating shaft 20 extending into the suspension fixing frame 30; the first magnet 201 is attracted to the rotor magnet 103; a fixing frame magnet 302 is arranged on the end face of the side of the suspension fixing frame 30 away from the rotor 101, and a second magnet 202 which repel the fixing frame magnet 302 is sleeved on the rotating shaft 20. The above-mentioned driving component provides a suspension force for the rotating shaft 20 through magnetic repulsion by arranging a fixing frame magnet 302 on the suspension fixing frame 30, and drives the rotating shaft 20 to rotate in a direct and contactless manner through the motor 10 by arranging the rotor magnet 103 and the first magnet 201 to attract each other. The rotating shaft 20 is suspended and rotated, thereby greatly reducing the friction during the rotation process, avoiding the jitter of the film during the rotation process, and improving the stability of the rotation speed during the rotation process, that is, greatly improving the stability of driving the film to rotate.

[0034] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A drive assembly, It is characterized in that It includes a motor, a suspension fixing frame and a rotating shaft; The motor is fixedly arranged on a motor fixing bracket, and a rotor magnet is fixedly arranged on the rotor of the motor; The rotating shaft is arranged in the rotating shaft fixing hole of the suspension fixing frame, and the rotating shaft can rotate in the rotating shaft fixing hole; A first magnet is fixedly disposed on one end of the rotating shaft extending into the suspension fixing frame; the first magnet is attracted to the rotor magnet; A fixing frame magnet is arranged on the end surface of the suspension fixing frame on one side away from the rotor, and a second magnet which repel the fixing frame magnet mutually is sleeved on the rotating shaft.

2. The drive assembly according to claim 1, It is characterized in that The fixed frame magnet, the rotor magnet, the first magnet and the second magnet are all annular magnets with the same size; two side surfaces of the annular magnet respectively form two magnetic poles.

3. The drive assembly according to claim 1 or 2, It is characterized in that An annular connecting piece is provided at the end of the rotating shaft extending into the suspension fixing frame, and the first magnet is nested on the outside of the annular connecting piece for fixing.

4. The drive assembly according to claim 1 or 2, It is characterized in that The middle portion of the rotating shaft protrudes outward to form an annular flange, and the second magnet is embedded in the outer side surface of the annular flange for fixation.

5. The drive assembly according to claim 1 or 2, It is characterized in that The top surface of the suspension fixing frame is recessed inwards to form a concave cavity for arranging the fixing frame magnet.

6. The drive assembly according to claim 5, It is characterized in that A cylinder parallel to the axial direction of the rotating shaft is provided at the through hole in the center of the cavity; a copper sleeve is fixedly arranged in the cylinder; The rotating shaft is arranged in the rotating shaft fixing hole of the copper sleeve.

7. The drive assembly according to claim 1 or 2, It is characterized in that The motor fixing bracket is fixedly connected to the suspension fixing bracket.

8. The drive assembly according to claim 1 or 2, It is characterized in that The motor comprises a stator fixedly arranged on the motor fixing bracket and a rotor assembled on the stator; A stator through hole is provided in the center of the stator, and the rotor is a semi-enclosed structure wrapped around the outer periphery of the stator; a rotor shaft is provided on a side of the rotor facing the stator, and the rotor shaft is assembled in the stator through hole; and the rotor magnet is provided on a side of the rotor away from the rotor shaft.

9. The drive assembly according to claim 8, It is characterized in that The motor is a brushless motor.

10. A record player, It is characterized in that The record player comprises a drive assembly as claimed in any one of claims 1 to 9, and the record player further comprises a bottom plate, a cover plate and a tonearm; The suspension fixing frame and the motor fixing bracket are fixedly connected to the two side surfaces of the base plate respectively, the cover plate covers the top of the suspension fixing frame, the upper end of the rotating shaft extends out from the cover plate through hole provided on the cover plate, and the tonearm is fixedly provided on the upper end surface of the base plate and is located on one side of the cover plate.

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