Record disc module and vinyl record device

Abstract

The utility model relates to the technical field of disc players, in particular to a disc module and a vinyl disc device. The turntable module comprises a base, a driving assembly, a turntable assembly and a case, the driving assembly, the turntable assembly and the case are arranged on the base, the turntable assembly comprises a rotating shaft rotationally connected with the base and a turntable arranged on the rotating shaft, and the turntable is used for placing a turntable; wherein the rotating disc is in transmission connection with the driving assembly, the rotating shaft is further provided with a code disc, the code disc and the machine box are located on the side, away from the rotating disc, of the base, the base is further provided with a speed measuring sensor corresponding to the code disc, and the speed measuring sensor and the driving assembly are electrically connected with the machine box. By adopting the above mode, the current rotating speed of the disc can be more accurately obtained, so that the rotating speed of the disc can be compensated and corrected, and the control of the tone quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of record players, in particular to a turntable module and a vinyl record device. Background Art

[0002] A vinyl record device, also known as a phonograph, is a sound playback device that stores sound in the concave and convex textures carved on the surface of the record using acoustic methods. When you need to play music, place the record on the turntable of the vinyl record device, and the turntable drives the record to rotate under the stylus. The audio information collected by the stylus is amplified by the circuit and output to the speaker to play the music.

[0003] When a vinyl record device is in use, the speed at which the turntable is driven by the driving assembly has a great influence on the sound quality of the vinyl record device. Currently, most vinyl record devices do not have a speed measuring device, or the speed measuring device is set in an unreasonable position, and it is impossible to accurately obtain the current rotation speed of the turntable, which is not conducive to precise control of the turntable rotation speed, thereby affecting the control of the sound quality. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a turntable module and a vinyl record device, which can more accurately obtain the current rotation speed of the turntable, so as to compensate and return the rotation speed of the turntable to the correct position, thereby ensuring the control of the sound quality.

[0005] The utility model discloses a turntable module, comprising: a base, and a driving assembly, a turntable assembly and a chassis arranged on the base, the turntable assembly comprising a rotating shaft rotatably connected to the base, and a turntable arranged on the rotating shaft, the turntable is used to place the turntable; wherein the turntable is transmission-connected to the driving assembly, a code disc is also arranged on the rotating shaft, the code disc and the chassis are located on a side of the base away from the turntable, a speed sensor corresponding to the code disc is also arranged on the base, and the speed sensor and the driving assembly are electrically connected to the chassis respectively.

[0006] Optionally, a bearing seat is fixedly provided on the base, bearings are respectively provided at both ends of the bearing seat, the rotating shaft is rotatably connected to the bearing seat through the bearings, and the code disc is sleeved on one end of the rotating shaft and fixedly connected to the rotating shaft through fasteners.

[0007] Optionally, the code disc includes a disc body connected to the rotating shaft, and a grating arranged on an outer ring of the disc body, and the speed sensor corresponds to the grating.

[0008] Optionally, the grating and the disk body are on the same plane, or the outer ring of the disk body is provided with an annular folded edge, and the grating is arranged on the annular folded edge.

[0009] Optionally, the speed sensor is one of an optical coupler, a displacement sensor and a Hall sensor.

[0010] Optionally, a protective cover is further provided on the base, and the protective cover is used to cover the code disc and the speed sensor, and the speed sensor is directly connected to the base or connected to the base through the protective cover.

[0011] Optionally, the chassis includes a shell, and a control unit and a sound unit disposed in the shell, the sound unit and the driving assembly are electrically connected to the control unit, and the speed sensor is electrically connected to the control unit.

[0012] Optionally, the driving assembly includes a motor arranged on the base, and a transmission wheel connected to the motor; the turntable includes an inner disk and an outer disk arranged on the rotating shaft, and the transmission wheel is located between the inner disk and the outer disk and is transmission-connected to the inner disk.

[0013] Optionally, a wiring groove is provided on the base, a wiring hole corresponding to the wiring groove is provided on the protective cover, and a connecting line between the speed sensor and the control unit passes through the wiring hole and the wiring groove in sequence.

[0014] The utility model also discloses a vinyl record device, comprising a tonearm assembly and a turntable module as described in any one of the above, wherein the tonearm assembly is arranged on a base of the turntable module to correspond to a turntable.

[0015] Compared with the prior art, the beneficial effect of the turntable module and the vinyl record device provided by the embodiment of the utility model is that: through the rotating shaft connected to the base and the turntable arranged on the rotating shaft, when the turntable is driven to rotate by the driving component, the turntable rotates relative to the base through the rotating shaft, so that the rotation of the turntable is more stable, thereby ensuring the stability of the rotation of the turntable placed on the turntable. Among them, by the code disk arranged on the rotating shaft, the code disk is driven to rotate synchronously while the turntable rotates, and the angular velocity of the code disk rotation is consistent with the angular velocity of the turntable rotation. When it is necessary to measure the rotation speed of the turntable, it is only necessary to measure the rotation speed of the code disk with the help of a speed sensor. In addition, by arranging the code disk and the chassis on the side of the base away from the turntable, during use, the position of the code disk and the chassis is more concealed, which can reduce the influence of the external environment, thereby ensuring the accuracy of the measurement, and the chassis can compensate and return the rotation speed of the driving component according to the measurement result to ensure the accuracy of the final rotation speed of the turntable. By adopting the above method, the current rotation speed of the turntable can be obtained more accurately, so as to compensate and correct the rotation speed of the turntable, thereby ensuring the control of the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a structural schematic diagram of a jukebox provided by an embodiment of the utility model;

[0018] Figure 2 This is one of the structural schematic diagrams of the turntable module provided by the embodiment of the utility model;

[0019] Figure 3 This is the second structural schematic diagram of the turntable module provided by the embodiment of the utility model;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0021] Figure 5 This is an exploded view of the turntable assembly and the code disc;

[0022] Figure 6 This is a schematic diagram of the structure of the code disc and the speed sensor provided by the embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the cooperation between the base and the protective cover provided in the embodiment of the utility model.

[0024] The reference numerals in the figures are:

[0025] 10. Vinyl record device; 15. Tonearm assembly; 100. Turntable module; 110. Base; 112. Cable duct; 120. Drive assembly; 122. Motor; 124. Transmission wheel; 130. Turntable assembly; 132. Rotating shaft; 134. Turntable; 1342. Inner disk; 1344. Outer disk; 140. Chassis; 150. Encoder; 152. Disk body; 154. Grating; 160. Speed ​​sensor; 170. Bearing seat; 172. Bearing; 180. Fastener; 190. Protective cover. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0027] like Figures 1 to 4As shown, an embodiment of the utility model provides a turntable module 100, comprising: a base 110, and a driving assembly 120, a turntable assembly 130 and a chassis 140 arranged on the base 110, the turntable assembly 130 comprising a rotating shaft 132 rotatably connected to the base 110, and a turntable 134 arranged on the rotating shaft 132, the turntable 134 is used to place the turntable; wherein the turntable 134 is transmission-connected to the driving assembly 120, a code disk 150 is further arranged on the rotating shaft 132, the code disk 150 and the chassis 140 are located on the side of the base 110 away from the turntable 134, a speed sensor 160 corresponding to the code disk 150 is further arranged on the base 110, and the speed sensor 160 and the driving assembly 120 are electrically connected to the chassis 140 respectively.

[0028] Specifically, the turntable assembly 130 is connected to the base 110 by a rotating shaft 132 so as to ensure the smooth rotation of the turntable 134 when the turntable 134 rotates. The rotation of the turntable 134 is driven by the driving assembly 120. When the turntable 134 rotates, the rotating shaft 132 is driven to rotate synchronously. At this time, the code disk 150 disposed on the rotating shaft 132 has the same angular velocity as the turntable 134. The angular velocity of the code disk 150 can be measured by the speed sensor 160, and then the angular velocity of the turntable 134 can be obtained.

[0029] In addition, by setting the code disk 150 on the side of the base 110 away from the turntable 134, when measuring through the code disk 150, compared with the conventional form of measuring the motor speed or directly measuring the turntable 134 speed, the interference of the external environment can be reduced, which is conducive to more accurately measuring the current rotation speed of the turntable 134. It can be understood that the form of directly measuring the speed of the motor 122 and then calculating the speed of the turntable 134 through the transmission ratio will change the actual speed of the turntable after long-term use due to wear and aging of the belt, and the actual speed cannot be accurately obtained. While the form of directly measuring the speed of the turntable 134 is adopted, because the turntable 134 is independent of the base 110, it is easily affected by the external environment during the measurement process and fluctuates, thereby affecting the accuracy of the measurement. The solution adopted in the embodiment of the present application will not cause the above problems.

[0030] The turntable module 100 provided in the embodiment of the present application has a rotating shaft 132 rotatably connected to the base 110 and a turntable 134 disposed on the rotating shaft 132. When the turntable 134 is driven to rotate by the driving assembly 120, the turntable 134 rotates relative to the base 110 via the rotating shaft 132, so that the rotation of the turntable 134 is more stable, thereby ensuring the stability of the rotation of the turntable placed on the turntable 134. Among them, by the code disk 150 disposed on the rotating shaft 132, the code disk 150 is driven to rotate synchronously when the turntable 134 rotates, and the angular velocity of the code disk 150 is consistent with the angular velocity of the turntable 134. When it is necessary to measure the rotation speed of the turntable 134, it is only necessary to measure the rotation speed of the code disk 150 with the help of the speed sensor 160. In addition, by arranging the code disk 150 and the chassis 140 on the side of the base 110 away from the turntable 134, during use, the code disk 150 and the chassis 140 are more concealed, which can reduce the influence of the external environment, thereby ensuring the accuracy of the measurement, and the chassis 140 can compensate and correct the rotation speed of the drive component 120 according to the measurement result to ensure the accuracy of the final rotation speed of the turntable 134. In the above manner, the current rotation speed of the turntable can be obtained more accurately, so as to compensate and correct the rotation speed of the turntable, thereby ensuring the control of the sound quality.

[0031] like Figure 1 and Figure 5 As shown, a bearing seat 170 is fixedly provided on the base 110, and bearings 172 are respectively provided at both ends of the bearing seat 170. The rotating shaft 132 is rotatably connected to the bearing seat 170 through the bearings 172. The code disk 150 is sleeved on one end of the rotating shaft 132 and fixedly connected to the rotating shaft 132 through a fastener 180.

[0032] Specifically, by arranging the bearing seat 170 on the base 110, the installation and matching between the rotating shaft 132 and the base 110 are facilitated. In actual applications, it is only necessary to load the bearing 172 and the rotating shaft 132 into the bearing seat 170, and then fix the bearing seat 170 to the base 110. At the same time, the code disc 150 is sleeved on one end of the rotating shaft 132 and fixedly connected to the rotating shaft 132 by a fastener 180. The fastener 180 can be a bolt to lock the code disc 150 at the end of the rotating shaft 132. It can be understood that a groove can be provided on the side of the base 110 away from the rotating disc 134 so that the code disc 150 can be accommodated in the groove, thereby providing better protection for the code disc 150.

[0033] like Figure 4 and Figure 6 As shown, the code disc 150 includes a disc body 152 connected to the rotating shaft 132 , and a grating 154 arranged on the outer ring of the disc body 152 , and the speed sensor 160 corresponds to the grating 154 .

[0034] Specifically, an optical device composed of a large number of parallel slits of equal width and spacing is called a grating 154. The gratings 154 set on the outer circle of the disc 152 are arranged in a circular array. When the grating 154 moves one grating pitch, the speed sensor 160 undergoes an electrical signal conversion. At this time, the speed can be determined by the time interval between two adjacent pulses. The high-precision grating 154 on the code disc 150 allows the speed sensor 160 to detect the speed changes at multiple angles within one circle, thereby improving the measurement accuracy.

[0035] In an optional embodiment of the present application, the grating 154 and the disk body 152 are on the same plane, or the outer ring of the disk body 152 is provided with an annular folded edge, and the grating 154 is provided on the annular folded edge.

[0036] Specifically, when the outer ring of the disk body 152 is provided with an annular folded edge, and the grating 154 is provided on the annular folded edge, Figure 6 In the matching form, when the grating 154 and the disk body 152 are on the same plane, it is only necessary to make the detection surface of the speed sensor 160 correspond to the grating 154.

[0037] In an optional embodiment of the present application, the speed sensor 160 is one of an optical coupler, a displacement sensor and a Hall sensor.

[0038] Specifically, an optocoupler is also called a photoelectric isolator or a photoelectric coupler. It is a device that uses light as a medium to transmit electrical signals. Usually, the light emitter (infrared light emitting diode LED) and the light receiver (photosensitive semiconductor tube) are encapsulated in the same tube shell. When an electrical signal is applied to the input end, the light emitter emits light, and the light receiver generates a photocurrent after receiving the light, which flows out from the output end, thereby realizing the "electric-light-electric" conversion. The photoelectric coupler that uses light as a medium to couple the input end signal to the output end is widely used in digital circuits because of its advantages such as small size, long life, no contact, strong anti-interference ability, insulation between output and input, and unidirectional signal transmission. The displacement sensor calculates the distance to the object by measuring the time interval by emitting a particularly short light pulse and measuring the time from the emission to the reflection back by the object. When the distance changes, it is considered that a grating distance has been traveled, thereby realizing the measurement of the rotation speed. The Hall sensor can convert the changing magnetic field into a change in the output voltage, thereby achieving the purpose of speed measurement. It can be understood that when the Hall sensor is used, a magnetic part needs to be loaded at the corresponding position of the grating 154.

[0039] like Figure 7 As shown, a protective cover 190 is also provided on the base 110 , and the protective cover 190 is used to cover the code disk 150 and the speed sensor 160 . The speed sensor 160 is directly connected to the base 110 or connected to the base 110 through the protective cover 190 .

[0040] Specifically, by covering the code disc 150 and the speed sensor 160 with the protective cover 190, the code disc 150 and the speed sensor 160 can be protected. In addition, the setting position of the speed sensor 160 can be flexibly set according to the form of the code disc 150, such as being set on the base 110, or being set on the protective cover 190, as long as it can be accurately matched with the code disc 150.

[0041] In an optional embodiment of the present application, the chassis 140 includes a shell, and a control unit and a sound unit disposed in the shell, the sound unit and the driving assembly 120 are both electrically connected to the control unit, and the speed sensor 160 is electrically connected to the control unit.

[0042] Specifically, after obtaining the signal from the speed sensor 160, the control unit can control the operation of the driving unit according to the above signal to ensure the stable operation of the turntable, thereby ensuring the use effect of the generating unit and improving the sound quality during use.

[0043] In an optional embodiment of the present application, Figure 2 and Figure 5 As shown, the driving assembly 120 includes a motor 122 arranged on the base 110, and a transmission wheel 124 connected to the motor 122; the turntable 134 includes an inner disk 1342 and an outer disk 1344 arranged on the rotating shaft 132, and the transmission wheel 124 is located between the inner disk 1342 and the outer disk 1344, and is transmission-connected to the inner disk 1342.

[0044] Specifically, the transmission wheel 124 and the inner disk 1342 can be connected by a conveyor belt to reduce the vibration generated during transmission and ensure the stability of rotation. At the same time, in addition to carrying the turntable, the outer ring can also shield and protect the inner disk 1342 and the transmission wheel 124, which is conducive to improving the stability during use.

[0045] like Figure 7 As shown, a wiring groove 112 is provided on the base 110 , and a wiring hole corresponding to the wiring groove 112 is provided on the protective cover 190 . The connection line between the speed sensor 160 and the control unit passes through the wiring hole and the wiring groove 112 in sequence.

[0046] The above form is adopted to facilitate the wiring when the speed sensor 160 is connected to the control unit, and to protect the connection line. It is understandable that the size of the shell can also be increased, and the code disk 150 can be directly wrapped in the shell, which can also play a role in protecting the code disk 150.

[0047] The utility model also discloses a vinyl record device 10, including a tonearm assembly 15 and the turntable module 100 in the aforementioned embodiment, wherein the tonearm assembly 15 is arranged on a base 110 of the turntable module 100 to correspond to a turntable 134. The vinyl record device 10 includes the same structure and beneficial effects as the turntable module 100 in the aforementioned embodiment. The structure and beneficial effects of the turntable module 100 have been described in detail in the aforementioned embodiment, and will not be repeated here.

[0048] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A turntable module, characterized in that: include: A base, and a driving assembly, a turntable assembly and a chassis arranged on the base, the turntable assembly includes a rotating shaft rotatably connected to the base, and a turntable arranged on the rotating shaft, and the turntable is used to place a turntable; wherein the turntable is transmission-connected to the driving assembly, a code disk is also arranged on the rotating shaft, the code disk and the chassis are located on the side of the base away from the turntable, the base is also provided with a speed sensor corresponding to the code disk, and the speed sensor and the driving assembly are electrically connected to the chassis respectively.

2. The turntable module according to claim 1, characterized in that: A bearing seat is fixedly arranged on the base, and bearings are respectively arranged at both ends of the bearing seat. The rotating shaft is rotatably connected to the bearing seat through the bearings. The code disk is sleeved on one end of the rotating shaft and fixedly connected to the rotating shaft through fasteners.

3. The turntable module according to claim 1 or 2, characterized in that: The code disc comprises a disc body connected to the rotating shaft, and a grating arranged on the outer ring of the disc body, and the speed sensor corresponds to the grating.

4. The turntable module according to claim 3, characterized in that: The grating and the disk body are on the same plane, or the outer ring of the disk body is provided with an annular folded edge, and the grating is arranged on the annular folded edge.

5. The turntable module according to claim 3, characterized in that: The speed sensor is one of an optical coupler, a displacement sensor and a Hall sensor.

6. The turntable module according to claim 1 or 2, characterized in that: The base is also provided with a protective cover, which is used to cover the code disc and the speed sensor. The speed sensor is directly connected to the base or connected to the base through the protective cover.

7. The turntable module according to claim 6, characterized in that: The chassis includes a shell, and a control unit and a sound unit arranged in the shell. The sound unit and the driving assembly are both electrically connected to the control unit, and the speed sensor is electrically connected to the control unit.

8. The turntable module according to claim 7, characterized in that: The driving assembly includes a motor arranged on the base and a transmission wheel connected to the motor; the turntable includes an inner disk and an outer disk arranged on the rotating shaft, the transmission wheel is located between the inner disk and the outer disk, and is transmission-connected to the inner disk.

9. The turntable module according to claim 7, characterized in that: The base is provided with a wiring groove, the protective cover is provided with a wiring hole corresponding to the wiring groove, and the connecting line between the speed sensor and the control unit passes through the wiring hole and the wiring groove in sequence.

10. A vinyl record device, characterized in that: It comprises a tonearm assembly and a turntable module as claimed in any one of claims 1 to 9, wherein the tonearm assembly is arranged on a base of the turntable module to correspond to a turntable.

Images