A high performance portable electronic drum

Abstract

The present invention relates to a high-performance portable electronic drum, comprising a drum skin, a membrane switch, a surface shell, a buzzer, and a bottom shell. The bottom of the drum skin is provided with closely arranged polygonal cavities, a membrane switch is further provided between the drum skin and the surface shell, and the membrane switch comprises a surface isolation layer, an upper film, a middle isolation layer, and a lower film from top to bottom. The upper film and the lower film are combined to form a conduction area. A plurality of buzzers are provided below the surface shell, and the plurality of buzzers are respectively located directly below a plurality of drum discs. A bottom shell fixedly connected to the surface shell is further provided at the bottom of the surface shell. The membrane switch of the present invention adopts a four-layer structure, which eliminates false triggering caused by vibrations generated by striking adjacent drum discs, effectively solves the problem of crosstalk, and at the same time, has a good striking feel and improves the triggering sensitivity of the drum disc.

Description

Technical Field

[0001] The invention relates to the technical field of electronic drums, in particular to a high-performance portable electronic drum. Background Art

[0002] In the electronic percussion instrument industry, most of the portable electronic drums on the market are low-end products, and the user experience is far different from that of a drum set. In particular, portable electronic drums generally have multiple drum pads and are all on the same shell, which causes the percussion vibration signals between the drum pads to interfere with each other, also called crosstalk, thereby affecting the performance of the entire machine. At the same time, there are also problems such as poor percussion feel and insensitive triggering. Therefore, it is necessary to design a high-performance portable electronic drum that can solve the above problems. Summary of the invention

[0003] The invention provides a high-performance portable electronic drum, which is used to solve the problem that the striking vibration signals between the electronic drum plates in the prior art interfere with each other and cause crosstalk.

[0004] To solve the above problems, the present invention provides the following technical solutions: a high-performance portable electronic drum, comprising a drum skin, a membrane switch, a surface shell, a buzzer, and a bottom shell, wherein the surface of the drum skin is provided with a plurality of drum discs arranged in a matrix, the bottom of the drum skin is provided with closely arranged polygonal cavities, the surface shell is provided with a through hole, and the bottom of the drum skin is also provided with a limit column matching the through hole, a membrane switch is also provided between the drum skin and the surface shell, and the membrane switch comprises a surface isolation layer, an upper film, a middle isolation layer and a lower film from top to bottom, and the upper film and the lower film are combined to form a conductive area, a plurality of buzzers are provided under the surface shell, and the plurality of buzzers are respectively located directly under the plurality of drum discs, and a bottom shell fixedly connected to the surface shell is also provided at the bottom of the surface shell.

[0005] The membrane switch of the present invention adopts a new double-layer isolation layer structure, while the prior art usually has three layers. The surface isolation layer supports the drum plate in a local contact manner, and slight vibrations complete force transmission through the surface isolation layer and the middle isolation layer, avoiding direct pressure on the conduction area, eliminating false triggering caused by vibrations generated by knocking adjacent drum plates, and effectively solving the problem of crosstalk.

[0006] Furthermore, the polygonal cavity is a hexagonal cavity, and the perimeter of the hexagonal cavity increases from top to bottom. The through hole of the polygonal cavity increases from top to bottom, so that the drumhead has more stability and better striking feel. In this embodiment, the polygonal cavity is a hexagonal cavity.

[0007] Furthermore, the membrane switch is matched with the drum skin and the surface shell with zero clearance, and the plurality of buzzer sheets are respectively attached to the bottom of the surface shell through circular foam rubber pads. The membrane switch is matched with the drum skin and the surface shell with zero clearance, and the buzzer sheet is arranged directly below the drum plate, so that when the surface of the drum plate is hit, even a tiny vibration wave can be transmitted to the buzzer sheet in time, and the circular foam rubber pad can optimize the signal quality of the buzzer sheet to meet the requirements, thereby improving the trigger sensitivity of the drum plate.

[0008] Furthermore, the foam rubber pad is a foam rubber pad made of PORON material. PORON material has stable physical properties and is not easily affected by environmental factors, thereby ensuring the stability and uniformity of the drum signal and improving the drum performance of the entire machine.

[0009] Furthermore, the upper film and the lower film are made of PET material, the bottom surface of the upper film is printed with silver paste wiring, and the front surface of the lower film is printed with a conductive carbon layer. The upper film and the lower film can form multiple conductive areas after being combined.

[0010] Furthermore, the surface isolation layer is in a plurality of circular or rectangular shapes, and its position is directly opposite to the edge ribs of the hexagonal cavity at the bottom of the drum plate, so that the fit is tighter and more reliable.

[0011] Furthermore, the surface of the cover is provided with a groove along the periphery, and the bottom surface of the membrane switch is provided with adhesive. During assembly, the membrane switch can be adhered and fixed in the groove of the cover by using the adhesive, making it more firm and reliable.

[0012] Furthermore, the drum skin, the limit column and the polygonal cavity are all made of elastic materials. The drum plate is made of soft rubber material. Under the action of force, the ribs at the bottom of the drum plate will deform and press the upper film of the membrane switch area and contact the lower film, so that the membrane switch in this area is turned on. The detection circuit can read the buzzer signal corresponding to the conductive area to complete the recognition of a drum plate hit.

[0013] Furthermore, the elastic material is silicone or rubber. Silicone and rubber have greater elasticity, are easy to obtain, and have good durability.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the membrane switch of the present invention adopts a four-layer structure, which eliminates false triggering caused by vibrations generated by striking adjacent drum plates, effectively solves the problem of crosstalk, and at the same time, has a good striking feel and improves the triggering sensitivity of the drum plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0017] Figure 2 It is a side cross-sectional structural schematic diagram of the present invention;

[0018] Figure 3 for Figure 2 A magnified view of middle;

[0019] Figure 4 for Figure 3 Enlarged view of middle B;

[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the bottom surface of the middle drum head.

[0021] Among them, 1. drum skin; 11. drum disc; 12. polygonal cavity; 13. limit column; 2. membrane switch; 21. surface isolation layer; 22. upper membrane; 23. middle isolation layer; 24. lower membrane; 3. surface shell; 31. groove; 32. through hole; 4. foam rubber pad; 5. buzzer; 6. bottom shell. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only 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.

[0023] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0024] See also Figure 1 - Figure 5A high-performance portable electronic drum comprises a drum skin 1, a membrane switch 2, a surface shell 3, a buzzer 5 and a bottom shell 6. The surface of the drum skin 1 is provided with a plurality of drum discs 11 arranged in a matrix, the bottom of the drum skin 1 is provided with a closely arranged polygonal cavity 12, the surface shell 3 is provided with a through hole 32, the bottom of the drum skin 1 is also provided with a limit column 13 matching the through hole 32, a membrane switch 2 is also provided between the drum skin 1 and the surface shell 3, the membrane switch 2 is composed of a surface isolation layer 21, an upper film 22, a middle isolation layer 23 and a lower film 24 from top to bottom, the upper film 22 and the lower film 24 are combined to form a conduction area, a plurality of buzzer sheets 5 are provided under the surface shell 3, and the plurality of buzzer sheets 5 are respectively located directly under the plurality of drum discs 11, and a bottom shell 6 fixedly connected to the surface shell 3 is also provided at the bottom of the surface shell 3.

[0025] The membrane switch of the present invention adopts a new double-layer isolation layer structure, while the prior art usually has three layers. The surface isolation layer supports the drum plate in a local contact manner, and slight vibrations complete force transmission through the surface isolation layer and the middle isolation layer, avoiding direct pressure on the conduction area, eliminating false triggering caused by vibrations generated by knocking adjacent drum plates, and effectively solving the problem of crosstalk.

[0026] The polygonal cavity 12 is a hexagonal cavity, and the perimeter of the hexagonal cavity increases from top to bottom. The through holes of the polygonal cavity increase from top to bottom, so that the drum skin has more stability and better striking feel.

[0027] The membrane switch 2 is matched with the drum skin 1 and the surface shell 3 with zero clearance, and the plurality of buzzer sheets 5 are respectively attached to the bottom of the surface shell 3 through the circular foam rubber pads 4. The membrane switch is matched with the drum skin and the surface shell with zero clearance, and the buzzer sheet is arranged directly below the drum plate, so that when the surface of the drum plate is hit, even a tiny vibration wave can be transmitted to the buzzer sheet in time, and the circular foam rubber pad can optimize the signal quality of the buzzer sheet to meet the requirements, thereby improving the trigger sensitivity of the drum plate.

[0028] The foam rubber pad 4 is a foam rubber pad made of PORON material. PORON material has stable physical properties and is not easily affected by environmental factors, thereby ensuring the stability and uniformity of the drum signal and improving the drum performance of the whole machine.

[0029] The upper film 22 and the lower film 24 are made of PET material, the bottom surface of the upper film 22 is printed with silver paste wiring, and the front surface of the lower film 24 is printed with a conductive carbon layer. The upper film 22 and the lower film 24 can form a plurality of conductive areas after being combined.

[0030] The surface isolation layer 21 is in a plurality of circular or rectangular shapes, and its position is directly opposite to the edge ribs of the hexagonal cavity at the bottom of the drum plate 11, so that the fit is tighter and more reliable.

[0031] The surface of the face shell 3 is provided with a groove 31 along the periphery, and the bottom surface of the membrane switch 2 is provided with adhesive. During assembly, the membrane switch 2 can be pasted and fixed in the groove 31 of the face shell by using the adhesive, making it more firm and reliable.

[0032] The drum skin 1, the limit post 13 and the polygonal cavity 12 are all made of elastic material. The drum plate is made of soft rubber material. Under the action of force, the ribs at the bottom of the drum plate will deform and press the upper film of the membrane switch area and contact the lower film, so that the membrane switch in this area is turned on. The detection circuit can read the buzzer signal corresponding to the conductive area and complete the recognition of a drum plate hit.

[0033] The elastic material is silicone or rubber. Silicone and rubber have greater elasticity, are easy to obtain, and have good durability.

[0034] The working principle or working mode of the present invention is as follows: the circumference of the polygonal cavity 12 at the bottom of the drum skin 1 of the present invention increases from top to bottom, so that the drum skin 1 is more stable, and any area on the surface of the drum plate 11 can be guaranteed to be stable when struck, thus achieving a good striking feel; the buzzer plate 5 is arranged directly below the drum plate 11, and when the surface of the drum plate 11 is struck, even a tiny vibration wave can be transmitted to the buzzer plate 5 in time, and the ring-shaped foam rubber pad 4 can optimize the signal quality of the buzzer plate 5 to meet the requirements, and the foam rubber pad 4 is made of PORON material, has stable physical properties, and is not easily affected by environmental factors;

[0035] The membrane switch 2 of the present invention adopts a new structure of double-layer isolation layer (i.e., four-layer structure, usually three-layer), and its working principle is as follows:

[0036] (1) The middle isolation layer 23 is used to control the conduction pressure of the membrane switch 2. Generally, the smaller the force, the better. However, if the conduction force is too small, it is easily affected by the vibration of the drum plate 11, which may cause false triggering and crosstalk.

[0037] (2) The surface isolation layer 21 supports the drum plate 11 in a partial contact manner, and slight vibrations are transmitted through the surface isolation layer 21 and the middle isolation layer 23 to avoid direct pressure on the conductive area, thereby eliminating false triggering caused by vibrations generated by striking adjacent drum plates 11.

[0038] (3) When the drum plate 11 is struck with a drumstick, the striking force is transmitted to the membrane switch 2 through the drum plate 11 (soft rubber material). Since the drum plate 11 is made of soft rubber material, the polygonal cavity 12 at the bottom of the drum plate 11 will deform under the action of the force, and compress the upper film 22 in the membrane switch 2 area and contact the lower film 24, so that the membrane switch 2 in this area is turned on. The detection circuit can read the buzzer 5 signal corresponding to the conductive area to complete the recognition of a drum plate strike.

[0039] The membrane switch of the present invention adopts a four-layer structure, which eliminates false triggering caused by vibrations generated by striking adjacent drum plates, effectively solves the problem of crosstalk, and at the same time has a good striking feel and improves the triggering sensitivity of the drum plates.

[0040] In other embodiments, the surface isolation layer 21 for supporting the drum disc in a local contact manner may also be designed on the ribs at the bottom of the drum disc, that is, the part where the drum disc contacts the membrane switch. A corresponding protruding structure may be designed at the corresponding position of the middle isolation layer of the membrane switch to replace the above-mentioned membrane switch surface isolation layer 21 design, so that the same isolation effect can be achieved.

[0041] The above is a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, several improvements and modifications made without departing from the principle of the present invention should also be considered as the protection scope of the present invention.

Claims

1. A high performance portable electronic drum, characterized in that: It includes a drum skin, a membrane switch, a surface shell, a buzzer, and a bottom shell. The surface of the drum skin is provided with a plurality of drum discs arranged in a matrix, the bottom of the drum skin is provided with a closely arranged polygonal cavity, the surface shell is provided with a through hole, and the bottom of the drum skin is also provided with a limit column matching the through hole. A membrane switch is also provided between the drum skin and the surface shell. The membrane switch is composed of a surface isolation layer, an upper film, a middle isolation layer and a lower film from top to bottom. The upper film and the lower film are combined to form a conductive area. A plurality of buzzers are provided under the surface shell, and the plurality of buzzers are respectively located directly under the plurality of drum discs. A bottom shell fixedly connected to the surface shell is also provided at the bottom of the surface shell. The surface isolation layer is a plurality of circular or rectangular shapes, and its position is directly opposite to the edge ribs of the hexagonal cavity at the bottom of the drum disc. The drum disc is made of soft rubber material. Under the action of force, the ribs at the bottom of the drum disc will deform and press the upper film in the membrane switch area and contact the lower film, so that the membrane switch in this area is conductive.

2. The high performance portable electronic drum according to claim 1, characterized in that: The perimeter of the hexagonal cavity increases from top to bottom.

3. The high performance portable electronic drum according to claim 1, characterized in that: The membrane switch is matched with the drum skin and the surface shell in a zero-gap manner, and a plurality of buzzer sheets are respectively adhered to the bottom of the surface shell through circular foam rubber pads.

4. The high performance portable electronic drum according to claim 1, characterized in that: The upper film and the lower film are made of PET material, the bottom surface of the upper film is printed with silver paste wiring, the front surface of the lower film is printed with a conductive carbon layer, and multiple circular or rectangular isolation layers are distributed between the upper film and the lower film. The upper film and the lower film can form multiple conductive areas when combined.

5. The high performance portable electronic drum according to claim 1, characterized in that: The surface isolation layer and the middle isolation layer correspond to each other.

6. The high performance portable electronic drum according to claim 1, characterized in that: The surface of the face shell is provided with grooves along the periphery.

7. The high performance portable electronic drum according to any one of claims 1 to 6, characterized in that: The drum skin, the limiting column and the polygonal cavity are all made of elastic material.

8. The high performance portable electronic drum according to claim 7, characterized in that: The elastic material is silicone or rubber.

Images