Silica gel strength drum

Abstract

The utility model discloses a silica gel strength drum which comprises a player, a shell, a silica gel layer and a PCB layer, wherein the silica gel layer and the PCB layer are arranged on the shell. The shell is provided with a plurality of pressing holes, and the silica gel layer is provided with a plurality of pressing keys in one-to-one correspondence with the pressing holes; one side, close to the PCB layer, of the press key is provided with a carbon film; the PCB layer is provided with a plurality of installation connection point positions, each installation connection point position is internally provided with a resistance circuit, and the resistance circuit is provided with a positive electrode circuit and a negative electrode circuit; when any pressing key is pressed, the corresponding carbon film is pressed down and makes contact with the PCB layer, after the carbon film makes contact with the PCB layer, part of the positive electrode circuits and part of the negative electrode circuits corresponding to the spatial positions of the carbon film are connected to conduct electricity, the number of the connected positive electrode circuits and the number of the connected negative electrode circuits are in positive correlation with the pressed-down area of the carbon film, and the pressed-down area of the carbon film is in positive correlation with the pressed-down area of the carbon film. And the pressed area of the carbon diaphragm is positively correlated with the pressure applied to the pressing key, so that the effect of controlling the volume and the more flexible playing effect are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic musical instrument devices, in particular to a silicone force drum.

Background Art

[0002] Musical instruments refer to instruments that can produce musical sounds and can be used for the re-creation of musical art. For example, they include percussion instruments or keyboard instruments. Users usually play musical instruments to express and communicate their thoughts and feelings. Currently, musical instruments on the market can be divided into electronic musical instruments and mechanical musical instruments according to whether they use electronic components. Among them, mechanical musical instruments are made of natural materials and use the sounds emitted by the materials themselves to achieve music performance. Although they have good sound effects and artistic sense, their costs are usually high. As a result, many electronic musical instruments have emerged. Electronic musical instruments simulate conventional musical instruments in appearance and are composed of circuits inside. According to the different positions where the user presses the keys, the internal controller controls different sound effects to be emitted, so as to realize the control of electronic musical instruments. The cost is relatively low and they can be mass-produced.

[0003] When current electronic musical instruments are in use, due to the use of circuit control, their output volumes are fixed. Regardless of the pressing intensity of the user, the final output sound effects and volume sizes are fixed, resulting in a rigid performance of electronic musical instruments and lacking flexibility. Therefore, the applicant applied for an electronic drum with a pressure diaphragm in a previous case. By different pressing stresses on the diaphragm, the number of resistive circuits that can be conducted is different, resulting in different resistance values of the entire diaphragm connected to the circuit, so as to achieve the effect of volume control and obtain a more flexible performance effect. However, the pressing feedback on the diaphragm is not obvious enough, which is not conducive to users adjusting their pressing forces according to the pressing feedback.

[0004] In view of this, it is necessary to provide a silicone force drum to overcome the above defects.

Content of the Utility Model

[0005] The purpose of the utility model is to provide a silicone force drum, aiming to improve the problem that the pressing feedback on the diaphragm of the electronic drum with a pressure diaphragm is not obvious enough, so as to facilitate users to adjust their pressing forces according to the pressing feedback.

[0006] To achieve the above purpose, the utility model provides a silicone force drum, which includes a player, a housing, a silicone layer and a PCB layer both arranged in the housing; a plurality of pressing holes are formed in the housing, and a plurality of pressing keys corresponding to the pressing holes one by one are arranged on the silicone layer; a carbon diaphragm is arranged on one side of the pressing key close to the PCB layer; the carbon diaphragm is arranged at an interval from the PCB layer, and is provided with carbon oil and a plurality of isolation points; the PCB layer is electrically connected to the player;

[0007] A plurality of mounting and connecting points corresponding to the pressing keys one by one are arranged on the PCB layer, and a resistance circuit is arranged in each mounting and connecting point. The resistance circuit is provided with a positive electrode line and a negative electrode line.

[0008] When any one of the pressing keys is pressed, the corresponding carbon film is pressed down and contacts the PCB layer. After the carbon film contacts the PCB layer, a part of the positive electrode line and a part of the negative electrode line corresponding to the spatial position of the carbon film are connected to conduct electricity. The number of the connected positive electrode line and negative electrode line is positively correlated with the area of the carbon film pressed down, and the area of the carbon film pressed down is positively correlated with the magnitude of the pressure applied on the pressing key.

[0009] In a preferred embodiment, the carbon film is a graphite layer or conductive hard carbon.

[0010] In a preferred embodiment, a plurality of grooves are formed by the preset part of the silica gel layer recessing outward. The grooves extend out of the corresponding pressing holes to form the pressing keys; the carbon film is arranged at the bottom of the grooves.

[0011] In a preferred embodiment, the housing includes an upper housing and a lower housing; the upper housing and the lower housing enclose to form a fixing frame for accommodating the silica gel layer and the PCB layer; the pressing holes are formed in the upper housing and are all communicated with the fixing frame.

[0012] In a preferred embodiment, a criss-cross reinforcing rib grid is arranged on the inner side of the lower housing.

[0013] The silica gel force drum provided by the present utility model connects the housing, the silica gel layer, the PCB layer, the player and other components and electronic devices together through a clever structure, replacing the structure of directly pressing the sound effect control switch by a conventional key. Since the pressing force is different, the number of connected resistance circuits is different, resulting in different resistance values of the entire PCB layer connected to the circuit, so as to achieve the effect of controlling the volume size and obtain a more flexible playing effect. At the same time, the carbon film is arranged on the pressing key. Different magnitudes of the pressure applied on the pressing key make the area of the carbon film connected to the PCB layer different, and the silica gel pressing key has a good feedback feel, which is convenient for the user to adjust their pressing force according to the pressing feedback.

Description of the Drawings

[0014] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a three-dimensional exploded view of the silicone force drum provided by the present utility model;

[0016] Figure 2 For Figure 1 It is a top view of the carbon diaphragm in the shown silicone force drum.

[0017] Reference numerals in the figure: 100, silicone force drum; 10, player; 20, housing; 201, pressing hole; 21, upper housing; 22, lower housing; 30, silicone layer; 31, pressing key; 32, carbon diaphragm; 321, separation point; 40, PCB layer.

Specific Embodiment

[0018] In order to make the purpose, technical solutions and beneficial technical effects of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for explaining the present utility model and not for limiting the present utility model.

[0019] It should also be understood that the terms used in this specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in this specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0020] It should be further understood that the term " / and" used in this specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0021] In an embodiment of the present utility model, a silicone force drum 100 is provided, which is used to emit different sounds by pressing different keys, and the intensity of the emitted sound is positively correlated with the magnitude of the pressing pressure.

[0022] As Figure 1 - Figure 2 shown, the silicone force drum 100 includes a player 10, a housing 20, and a silicone layer 30 and a PCB layer 40 both provided in the housing 20.

[0023] Among them, the housing 20 includes an upper housing 21 and a lower housing 22. The upper housing 21 and the lower housing 22 enclose to form a fixing frame for fixing the silica gel layer 30 and the PCB layer 40.

[0024] A plurality of pressing holes 201 are formed in the housing 20. The pressing holes 201 are formed in the upper housing 21 and are all communicated with the fixing frame.

[0025] The silica gel layer 30 is provided with a plurality of pressing keys 31 corresponding to the pressing holes 201 one by one. A carbon film 32 is provided on one side of the pressing key 31 close to the PCB layer 40.

[0026] Specifically, a plurality of grooves are formed by the preset parts of the silica gel layer 30 recessing outwards. The grooves extend out of the corresponding pressing holes 201 to form the pressing keys 31; the carbon film 32 is arranged at the bottom of the grooves. Since the silica gel has a certain elasticity, when pressing the outside of the bottom of the groove from the outside, the carbon film 32 will be attached to the PCB layer 40, and the greater the pressing pressure, the larger the area attached to the PCB layer 40. When the pressure disappears, the groove resumes its original state under the action of its own elastic force.

[0027] Among them, the carbon film 32 and the PCB layer 40 are arranged at intervals, and carbon oil and a plurality of isolation points 321 are provided. The PCB layer 40 is electrically connected to the player 10.

[0028] Specifically, a plurality of installation and connection points (not shown in the figure) corresponding to the pressing keys 31 one by one are arranged on the PCB layer 40. A resistance circuit is arranged in each installation and connection point. The resistance circuit is provided with a positive electrode circuit and a negative electrode circuit. The positive electrode circuit and the negative electrode circuit are arranged in parallel and are not directly electrically connected. In particular, the resistance circuits corresponding to each pressing key 31 and its carbon film 32 are output separately, and generally do not interfere with each other and are independently output. Among them, the resistance circuit can be a conductive film arranged on the PCB layer 40. At this time, the resistance circuit is a comb-shaped conductive circuit.

[0029] When any pressing key 31 is pressed, the corresponding carbon film 32 is pressed down and contacts the PCB layer 40. After the carbon film 32 contacts the PCB layer 40, a part of the positive electrode circuit and a part of the negative electrode circuit corresponding to the spatial position of the carbon film 32 are connected to conduct electricity. The number of the positive electrode circuit and the negative electrode circuit connected is positively correlated with the area of the carbon film 32 pressed down. The area of the carbon film 32 pressed down is positively correlated with the magnitude of the pressure acting on the pressing key 31. That is, when the resistance circuit is turned on, the more the number of its conduction, the greater the current output by the PCB layer 40 corresponding to the pressing key 31, and vice versa.

[0030] During implementation, corresponding control buttons can be set on the player 10 for adjusting the sound effect or as a switch, and at least two speakers are set on the player 10. The controller in the player 10 receives the electrical signal output by the PCB layer 40 and outputs it as a corresponding sound effect.

[0031] The specific control execution method of the player 10 can be:

[0032] (1) Receive the key signal pressed by the user, obtain the position of the pressing key 31, the number of pressing keys 31 pressed simultaneously, the key type, and the force when the key is pressed, and transmit the electrical signal to the controller of the player 10;

[0033] (2) Conduct data analysis on all the pressed pressing keys 31. For the two cases of only one pressing key 31 being pressed and multiple pressing keys 31 being pressed simultaneously, the controller respectively conducts sound effect analysis data processing to determine the final output sound effect and output volume size. When only one pressing key 31 is pressed, the specific steps can be: obtain the position of the pressing key 31 and the force when the pressing key 31 is pressed. The force when the pressing key 31 is pressed directly controls the volume size. Different forces when the pressing key 31 is pressed result in different corresponding current sizes output by the PCB layer 40 to emit sound effects of different volume sizes;

[0034] (3) When multiple pressing keys 31 are pressed simultaneously, the specific steps are: first conduct data analysis on the positions of the pressed pressing keys 31, determine the specific sound effect to be output according to the simultaneously pressed pressing keys 31. The specific sound effect can be obtained in advance by mechanical musical instruments and stored in the memory of the electronic musical instrument. After determining the specific sound effect to be output, the controller retrieves the sound effect data in the memory, emits the corresponding sound effect, and at the same time, in combination with the force when each pressing key 31 is pressed, further adjusts the volume size of the sound effect;

[0035] (4) Combining the above, broadcast the final playback data, that is, the playback sound effect and volume size data, through the player 10 to achieve the sound effect output when a pressing key 31 is pressed once. The sound effect output control of the musical instrument can be completed according to this mode for each press of the pressing key 31.

[0036] In summary, for the silicone force drum 100 provided by the present utility model, the present utility model connects the housing 20, the silicone layer 30, the PCB layer 40, the player 10 and other components and electronic devices together through a clever structure, replacing the structure of directly pressing the sound effect control switch with a conventional button. Since the pressing force is different, the number of resistor lines that can be conducted is different, resulting in different resistance values of the entire PCB layer 40 connected to the circuit, so as to achieve the effect of volume control and obtain a more flexible performance effect. At the same time, the carbon film 32 is arranged on the pressing key 31. Different pressures applied to the pressing key 31 result in different areas of the carbon film 32 connected to the PCB layer 40, and the silicone pressing key 31 has a good feedback feel, which is convenient for users to adjust their pressing force according to the pressing feedback.

[0037] The present utility model is not limited solely to what is described in the specification and embodiments. Therefore, for those skilled in the art, additional advantages and modifications can be easily achieved. Thus, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present utility model is not limited to specific details, representative devices, and the illustrated examples shown and described herein.

Claims

1. A silicone force drum, characterized in that, It includes a player, a housing, a silica gel layer and a PCB layer both provided in the housing; a plurality of pressing holes are formed in the housing, and the silica gel layer is provided with a plurality of pressing keys corresponding to the pressing holes one by one; a carbon film is provided on one side of the pressing key close to the PCB layer; the carbon film is spaced from the PCB layer, and is provided with carbon oil and a plurality of spacer points; the PCB layer is electrically connected to the player; A plurality of mounting and connecting points corresponding to the pressing keys one by one are provided on the PCB layer, and a resistance circuit is provided in each of the mounting and connecting points. The resistance circuit is provided with a positive electrode line and a negative electrode line; When any one of the pressing keys is pressed, the corresponding carbon film is pressed down and contacts the PCB layer. After the carbon film contacts the PCB layer, a part of the positive electrode line and a part of the negative electrode line corresponding to the spatial position of the carbon film are connected to conduct electricity. The number of the positive electrode line and the negative electrode line connected is positively correlated with the area of the carbon film pressed down, and the area of the carbon film pressed down is positively correlated with the magnitude of the pressure acting on the pressing key.

2. The silicone force drum according to claim 1, wherein, The carbon film is a graphite layer or conductive hard carbon.

3. The silicone force drum according to claim 1, wherein Preset parts of the silica gel layer are recessed outward to form a plurality of grooves, and the grooves extend out of the corresponding pressing holes to form the pressing keys; the carbon film is provided at the bottom of the grooves.

4. The silicone strength drum according to claim 3, wherein The housing includes an upper housing and a lower housing; the upper housing and the lower housing enclose to form a fixing frame for fixing the silica gel layer and the PCB layer; the pressing holes are formed in the upper housing and are all communicated with the fixing frame.

5. The silicone strength drum according to claim 4, wherein, Reinforcing rib grids are provided on the inner side of the lower housing and are criss-crossed.

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