A music synthesizer

Abstract

A music synthesizer, belonging to the field of music equipment technology, includes a housing and a circuit board (12) disposed within the housing. A control circuit is disposed on the circuit board (12), and an operation panel is disposed on the surface of the housing. An adjustment knob (4) and buttons are disposed on the operation panel. Components corresponding to the adjustment knob (4) and buttons are connected to the control circuit. The key feature is that the adjustment knob (4) is located on the side of the housing, opposite to the end face where the buttons are located, and the axis of rotation of the adjustment knob (4) is parallel to the surface of the circuit board (12). In this portable music synthesizer, placing the adjustment knob on the side of the housing, opposite to the plane where the buttons are located, saves space on the operation panel on the front surface of the housing, facilitates a more reasonable arrangement of the buttons, effectively avoids the possibility of misoperation when operating the buttons and adjustment knob, and improves the user experience.

Description

Technical Field

[0001] A music synthesizer, belonging to the field of music equipment technology. Background Technology

[0002] A music synthesizer is an electronic device used to synthesize various sound timbres. In existing technologies, the main methods for creating sound using a music synthesizer include frequency modulation, waveform memory, and pulse digital modulation. To achieve the sound synthesis function of a music synthesizer, its control circuit typically consists of several oscillators, envelope generators, mixers, filters, low-frequency oscillators, volume amplifiers, and effects units. In actual operation, these are achieved through buttons and knobs on the control panel, as illustrated by the technical solutions described in Chinese invention patents: application number 202410560053.2 (filed May 8, 2024) entitled "A Wearable Music Synthesizer for Music Performance," and application number 202311421570.3 (filed October 31, 2023) entitled "An Electronic Melodica."

[0003] However, music synthesizers, including the aforementioned technical solutions, are suitable for more professional use. Therefore, they are feature-rich and have complex panel designs, such as buttons that span multiple octaves. However, some non-professional music enthusiasts, lacking the necessary musical knowledge, find it difficult to master these products. Consequently, portable music synthesizers suitable for non-professional music enthusiasts have emerged on the market, such as the technical solution described in Chinese utility model patent application number 201520894037.3, filed on November 11, 2015, entitled "A Wearable MIDI Electronic Music Synthesizer".

[0004] However, portable music synthesizers on the market, especially smaller ones, generally suffer from the following problems: due to the limited size of the actual product, the size of their user interface is restricted, resulting in a dense arrangement of buttons and knobs. This often leads to accidental touches during actual use, thus reducing the user experience to some extent. Therefore, designing a music synthesizer with a compact structure, reasonable layout, and improved user experience has become an urgent problem to be solved in this field. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a music synthesizer in which the adjustment knob is set on the side of the housing and is different from the plane where the buttons are located, which saves the space of the operation panel on the front housing surface, is more conducive to the reasonable arrangement of buttons, effectively avoids the possibility of misoperation when operating buttons and adjustment knobs, and improves the user experience.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: the music synthesizer includes a housing and a circuit board disposed inside the housing. A control circuit is disposed on the circuit board, and an operation panel is disposed on the surface of the housing. An adjustment knob and a button are disposed on the operation panel. The components corresponding to the adjustment knob and the button are connected to the control circuit. The characteristic is that the adjustment knob is located on the side of the housing and is different from the end face where the button is located. The axis of the adjustment knob rotation shaft is parallel to the surface of the circuit board.

[0007] Preferably, multiple potentiometers are connected in the control circuit on the surface of the circuit board. The axis of the potentiometer adjustment terminal is parallel to the surface of the circuit board, and the adjustment knob passes through the surface of the housing and connects with the potentiometer.

[0008] Preferably, a limiting stage is provided protruding on the inner wall of the housing. The limiting stage is arranged along the arrangement direction of the potentiometer on the surface of the circuit board, and the limiting stage is located inside the potentiometer.

[0009] Preferably, the potentiometer has flat pins and bent pins, with the ends of the bent pins and flat pins spaced apart, and the solder joints of the bent pins and flat pins on the circuit board surface are located on the front and rear end faces of the circuit board, respectively.

[0010] Preferably, the housing includes a front shell and a rear cover fixed at the rear port of the front shell, with a limiting platform protruding from the surface of the rear cover.

[0011] Preferably, the buttons include function buttons and performance buttons located on the surface of the front housing, and the adjustment knob is located on the side wall of the front housing.

[0012] Preferably, a sound-emitting hole is also provided on the surface of the back cover.

[0013] Preferably, a hanging ring is provided on the top of the front cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are: In the music synthesizer of this application, the adjustment knob is located on the side of the housing, which is different from the plane where the buttons are located. This saves space on the front housing surface operation panel, makes it easier to arrange the buttons reasonably, effectively avoids the possibility of accidental operation when operating the buttons and adjustment knob, and improves the user experience.

[0015] In the music synthesizer of this application, the limiting stage serves to assist in fixing the potentiometer and improve its stability. In actual operation, in addition to applying torque to the adjustment knob, the user also applies an additional axial force to the potentiometer. Therefore, by setting a limiting stage corresponding to the potentiometer on the back cover, the additional axial force applied by the user to the potentiometer is transferred to the limiting stage, thus improving long-term reliability.

[0016] The soldering method, where the bent leads and the two flat leads are soldered to opposite ends of the circuit board, allows the leads themselves to exert a pulling force, which can improve the stability of the potentiometer to some extent when subjected to additional axial force. Furthermore, it allows for the modification of standard potentiometer models, eliminating the need to develop new models and reducing costs.

[0017] A hanging loop is located at the top center of the front shell for easy carrying of this music synthesizer. Attached Figure Description

[0018] Figure 1 Axonometric drawing of a music synthesizer.

[0019] Figure 2 A front view of a music synthesizer.

[0020] Figure 3 for Figure 2 Rear view.

[0021] Figure 4 for Figure 2 The left view.

[0022] Figure 5 Axonometric drawing of the back cover of a music synthesizer.

[0023] Figure 6 This is a front view of the back cover of a music synthesizer.

[0024] Figure 7 for Figure 4 Sectional view along the AA direction.

[0025] Figure 8 Isometric view of a potentiometer for a music synthesizer.

[0026] Figure 9 A front view of a music synthesizer potentiometer.

[0027] The components include: 1. Hanging ring; 2. Power switch; 3. Function button; 4. Adjustment knob; 5. Front cover; 6. Play button; 7. Sound hole; 8. Back cover; 9. Limiting platform; 10. Fixing hole; 11. Potentiometer; 12. Circuit board; 13. Bending pin; 14. Flat pin. Detailed Implementation

[0028] Figures 1-9 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-9 The present invention will be further described below.

[0029] like Figures 1-4 As shown, a music synthesizer (hereinafter referred to as the music synthesizer) includes a housing, which is formed by connecting a front shell 5 and a rear cover 8. The rear cover 8 is fixed to the rear port of the front shell 5. The front shell 5 and the rear cover 8 are connected to form the inner cavity of the music synthesizer. A hanging ring 1 is provided at the top center of the front shell 5 for easy carrying of the music synthesizer.

[0030] Two function buttons 3 are arranged side by side on the upper surface of the front cover 5, with the power switch 2 of this music synthesizer located between the two function buttons 3. Multiple performance buttons 6 are located on the lower part of the front cover 5; there are eight performance buttons 6, corresponding to the 8th note and a musical note in a scale.

[0031] Combination Figures 5-6 Multiple through holes are provided on the upper part of the rear cover 8, and all the through holes form a sound outlet 7 to facilitate the sound transmission of the speaker (not shown in the figure) arranged on the rear cover 8. Multiple fixing holes 10 are arranged around the rear cover 8, and screws are used to fix the rear cover 8 to the front shell 5 in each fixing hole 10.

[0032] The circuit board 12 of this music synthesizer is fixed inside the front casing 5, and the control circuit of this music synthesizer is provided on the circuit board 12. The control circuit of the music controller is common knowledge in the field and a common practice for those skilled in the art (such as the technical solution described in Chinese invention patent application number 202411207944.6, application date August 30, 2024, entitled "An Electronic Music Synthesizer"), and the technical solution of this application does not improve the control circuit, so it will not be described in detail here.

[0033] The function button 3 and the performance button 6, located on the surface of the front cover 5, correspond to the button elements on the front face of the circuit board 12. Pressing either the function button 3 or the performance button 6 will trigger the corresponding button element. Multiple adjustment knobs 4 are located on the side walls of both sides of the front cover 5, in conjunction with... Figure 7 Potentiometers 11 are respectively provided on the surface of the circuit board 12 corresponding to the adjustment knob 4. The adjustment shaft of the adjustment knob 4 passes through the shell wall of the front shell 5 and connects with the adjustment end of the potentiometer 11. The corresponding potentiometer 11 can be adjusted by rotating the adjustment knob 4.

[0034] In this music synthesizer, the axis of the adjustment knob 4 is parallel to the surface of the circuit board 12. On the inner end face of the rear cover 8, a limiting platform 9 is provided. The limiting platform 9 is arranged along the inner edge of the potentiometer 11. After the rear cover 8 is fixed to the front shell 5, the limiting platform 9 is located inside all the potentiometers 11 and contacts the potentiometers 11.

[0035] The function of the limiting stage 9 is to provide auxiliary fixation for the potentiometer 11, thereby improving its stability. In actual operation, in addition to applying torque to the adjustment knob 4, the user also applies an additional axial force to the potentiometer 11. However, in traditional music synthesizers, since the adjustment knob 4 is generally located on the surface of the control panel, the potentiometer 11, which is connected to the adjustment knob 4, is directly soldered to the surface of the circuit board 12. Therefore, the additional axial force applied to the potentiometer 11 by the user will further act on the surface of the circuit board 12, thus not affecting the stability of the potentiometer 11.

[0036] In the structure of this application, the adjustment knob 4 is located on the side of the front shell 5. Although this saves space on the surface of the front shell 5 and is more conducive to the arrangement of the function buttons 3 and the performance buttons 6, the rotation axis of the potentiometer 11 is parallel to the surface of the circuit board 12. Therefore, when the user rotates the adjustment knob 4, the circuit board 12 cannot withstand the additional axial force applied to the potentiometer 11 by the user. The potentiometer 11 is only fixed to the circuit board 12 by its pins, which can easily cause damage to the potentiometer 11 after long-term use. In this music synthesizer, by setting a limiting platform 9 corresponding to the potentiometer 11 at the rear cover 8, the additional axial force applied to the potentiometer 11 by the user will be transferred to the limiting platform 9, thus improving the reliability of long-term use.

[0037] Further integration Figures 8-9 To further reduce the size of this music synthesizer, potentiometer 11 is implemented using a commercially available B103 type potentiometer. However, with the conventional pin arrangement of the B103 type potentiometer, after being soldered to the circuit board 12, its adjustment end is perpendicular to the surface of the circuit board 12, making it impossible to position the adjustment knob 4 on the side of the front housing 5.

[0038] Therefore, in this music synthesizer, one pin of potentiometer 11 is bent and / or extended to form a bent pin 13, and the other two pins of potentiometer 11 are formed as flat pins 14. The end of the bent pin 13 is spaced apart from the plane containing the two flat pins 14. When soldering potentiometer 11 to circuit board 12, the solder joints of the bent pin 13 and the two flat pins 14 on the surface of circuit board 12 are located on the two end faces of circuit board 12, respectively. If potentiometer 11 is surface mount soldered, the pads corresponding to the bent pin 13 and the pads corresponding to the two flat pins 14 are respectively arranged on the two end faces of the circuit board 12; if potentiometer 11 is through-hole soldered, although the solder holes corresponding to the bent pin 13 and the solder holes corresponding to the two flat pins 14 are both through-holes passing through the circuit board 12, the bent pin 13 and the two flat pins 14 pass through the corresponding solder holes from both sides.

[0039] Therefore, the solder joints of the bent pin 13 and the two flat pins 14 on the surface of the circuit board 12 are located on the two end faces of the circuit board 12. When the potentiometer 11 is subjected to additional axial force, the traction effect of the pins themselves can also improve its stability to a certain extent.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A musical synthesizer comprising a housing, and a circuit board (12) disposed in the housing, a control circuit being disposed on the circuit board (12), an operation panel being disposed on the surface of the housing, an adjusting knob (4) and a key being disposed on the operation panel, elements corresponding to the adjusting knob (4) and the key being connected to the control circuit, characterized in that: The adjustment knob (4) is located on the side of the housing and is different from the end face where the button is located. The axis of the adjustment knob (4) is parallel to the surface of the circuit board (12). ​ 2. The music synthesizer of claim 1, wherein: Multiple potentiometers (11) are connected in the control circuit on the surface of the circuit board (12). The axis of the adjustment end of the potentiometer (11) is parallel to the surface of the circuit board (12). The adjustment knob (4) passes through the surface of the housing and connects with the potentiometer (11).

3. The music synthesizer of claim 2, wherein: A limiting stage (9) is provided protruding on the inner wall of the housing. The limiting stage (9) is arranged along the arrangement direction of the potentiometer (11) on the surface of the circuit board (12), and the limiting stage (9) is located inside the potentiometer (11).

4. The music synthesizer according to claim 2 or 3, characterized by: The potentiometer (11) has a flat pin (14) and a bent pin (13). The ends of the bent pin (13) and the flat pin (14) are spaced apart, and the solder joints of the bent pin (13) and the flat pin (14) on the surface of the circuit board (12) are located on the front and rear ends of the circuit board (12), respectively.

5. The music synthesizer of claim 3, wherein: The housing includes a front shell (5) and a rear cover (8) fixed at the rear port of the front shell (5), with a limiting platform (9) protruding from the surface of the rear cover (8).

6. The music synthesizer of claim 5, wherein: The buttons include function buttons (6) and performance buttons (3) located on the surface of the front shell (5), and adjustment knobs (4) are located on the side wall of the front shell (5).

7. The music synthesizer of claim 5, wherein: A sound hole (7) is also provided on the surface of the back cover (8).

8. The music synthesizer of claim 5, wherein: A hanging ring (1) is provided on the top of the front shell (5).

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