CN212256893U - Keyboard and electronic musical instrument - Google Patents

Abstract

The utility model discloses a keyboard and electronic musical instrument, wherein, the keyboard includes first button, five second buttons and ten third buttons, five second buttons encircle around first button, ten third buttons encircle keep away from around first button one side in five second button rings, first button has first central point, every second button has the second central point, one side that first button was kept away from to every second button is equipped with two third buttons, two third buttons are located the both sides of the extension line of first central point and second central point line respectively. The utility model discloses a keyboard adopts foretell mode of arranging through setting up first button, second button and third button, can conveniently arrange ten groups with minimum button and have the chord of three sound to can use the quantity of button less, reduce the size of product.

Description

Keyboard and electronic musical instrument

Technical Field

The utility model relates to a keyboard and an electronic musical instrument that adopts this keyboard.

Background

Chord is a concept of musical theory, which means that three or more tones are combined in a longitudinal direction in a three-degree or non-three-degree overlapping relationship. Most of keys of some playing type electronic musical instruments (such as electronic pianos) on the market at present are arranged in a straight row mode, and the arrangement mode needs more keys when a certain number of chords are obtained, so that the size of the equipment is larger.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the objectives of the present invention is to disclose a keyboard, which is used to solve the problem that the keys of the existing playing type electronic musical instrument are mostly arranged in a straight row, and the arrangement mode needs more keys when obtaining a certain number of chords, so that the size of the device is larger. A second object of the present invention is to disclose an electronic musical instrument, which employs the keyboard.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a keyboard is used for playing type electronic musical instruments and comprises first keys, five second keys and ten third keys, wherein five second keys surround the periphery of the first keys, ten third keys surround the five second keys and are far away from the periphery of one side of the first keys, the first keys are provided with first central points, every second keys are provided with second central points, every second keys are far away from one side of the first keys and are provided with two third keys, and the two third keys are respectively positioned on two sides of extension lines of connecting lines of the first central points and the second central points.

As an improvement mode, five second keys surround the periphery of the first key at equal intervals.

As an improved mode, the two third keys are symmetrically arranged relative to an extension line of a connecting line of the first central point and the second central point.

As an improved mode, the first key, the second key and the third key are one or a combination of a plurality of circular, oval and regular N-shaped edges, wherein N is an integer and is more than or equal to 3.

As an improved mode, the first key, the second key and the third key are all regular pentagons, and the first key and the second key, and the second key and the third key are all arranged in a mode of edge alignment.

As an improvement mode, the side lengths of the first key, the second key and the third key are all 20-30 mm.

As an improved mode, the side lengths of the first key, the second key and the third key are all 25 +/-1 mm.

As an improved mode, the keyboard further comprises a keyboard pad, the first key, the second key and the third key are fixed on the same side of the keyboard pad, and the first key, the second key, the third key and the keyboard pad are integrally formed.

As an improved mode, the keyboard is a silica gel keyboard.

The second purpose of the utility model is realized by adopting the following technical scheme:

an electronic musical instrument includes the keyboard.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a keyboard encircles around first button through setting up five second buttons, ten third buttons encircle around keeping away from first button one side in five second button rings, first button has first central point, every second button has the second central point, one side that first button was kept away from to every second button is equipped with two third buttons, two third buttons are located the both sides of the extension line of first central point and second central point line respectively, this mode of arranging can conveniently arrange the chord that ten groups have three sound with minimum button, thereby can use the quantity of button less, reduce the size of product.

Drawings

Fig. 1 is a schematic perspective view of a keyboard according to an embodiment of the present invention;

fig. 2 is a schematic top view of a keyboard according to an embodiment of the present invention;

FIG. 3 is a schematic view of an electronic musical instrument according to an embodiment of the present invention;

FIG. 4 is an exploded view of the electronic musical instrument disclosed in the embodiments of the present invention;

FIG. 5 is a schematic top view of an electronic musical instrument according to an embodiment of the present invention;

FIG. 6 is a schematic side view of an electronic musical instrument according to an embodiment of the present invention;

FIG. 7 is a schematic view of the bottom perspective structure of the electronic musical instrument according to the embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an audio mechanism according to an embodiment of the present invention;

fig. 9 is an exploded view of the acoustic mechanism according to the embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-2, an embodiment of the present invention discloses a keyboard 31 for a playing type electronic musical instrument, the keyboard 31 includes a first key 311, five second keys 312 and ten third keys 313, the five second keys 312 surround the first key 311, the ten third keys 313 surround the five second keys 312, the five second keys 312 surround the side of the first key 311, the first key 311 has a first center point 3111, each second key 312 has a second center point 3121, one side of each second key 312, which is away from the first key 311, is provided with two third keys 313, and the two third keys 313 are respectively located on two sides of an extension line L connecting the first center point 3111 and the second center point 3121. Five second keys 312 form a second key ring around the first key 311, and ten third keys 313 form a third key ring around the second key ring away from the first key 311.

In the keyboard 31 disclosed in the present embodiment, by arranging the first key 311, the second key 312, and the third key 313 in the above-described manner, ten sets of chords having three tones can be conveniently arranged with a minimum number of keys, so that the number of keys 31 can be used less, and the size of the product can be reduced.

As a modified manner of this embodiment, five second keys 312 surround the first key 311 at equal intervals. It should be noted that the five second keys 312 are also arranged around the first key 311 at unequal intervals, which may be determined according to actual design requirements.

As a modified manner of this embodiment, the two third keys 313 are symmetrically disposed with respect to the extension line L of the connection line of the first center point 3111 and the second center point 3112. It should be noted that, the two third keys 313 may be disposed in an asymmetric arrangement with respect to the extension line L of the connection line between the first center point 3111 and the second center point 3112, which may be determined according to actual design requirements.

As an improvement of the present embodiment, the first button 311, the second button 312, and the third button 313 are one or a combination of a circle, an ellipse, and a regular N-polygon, where N is an integer and N is greater than or equal to 3. It should be noted that the first key 311, the second key 312, and the third key 313 may also be in other irregular shapes, which is determined by actual design requirements.

As an improvement of the present embodiment, the first key 311, the second key 312, and the third key 313 are all regular pentagons, and the edges of the first key 311 and the second key 312 and the edges of the second key 312 and the third key 313 are all arranged in a regular alignment manner. The edge is aligned with each other, namely two adjacent regular pentagons, wherein one side of one regular pentagon is aligned with one side of the other regular pentagon in parallel. The arrangement of the pentagon can improve the identification of the first key 311, the second key 312 and the third key 313, for example, compared with the regular hexagon, the player can identify the keys more easily, and the player can perform the music conveniently.

As a modified mode of the embodiment, the side lengths of the first key 311, the second key 312 and the third key 313 are all 20-30 mm. Preferably, the side lengths of the first key 311, the second key 312 and the third key 313 are all 25 ± 1 mm. With the design mode, the key with the size accords with the performance of music performance, not only accords with adult use (the key cannot be felt to be too small by adults), but also accords with child use (the key cannot be too large by children), and has a larger application range.

As an improvement of the present embodiment, the keyboard 31 further includes a keyboard pad 314, the first key 311, the second key 312 and the third key 313 are fixed on the same side of the keyboard pad 314, and the first key 311, the second key 312, the third key 313 and the keyboard pad 314 are integrally formed.

As a modification of the present embodiment, the keyboard 31 is a silica gel keyboard.

Referring to fig. 3-6, an embodiment of the present invention further discloses an electronic musical instrument 100, wherein the electronic musical instrument 10 includes a housing 10, a main control circuit board 20, a key mechanism 30, and a sound mechanism 40. The housing 10 has a first inner cavity (not shown) and a sound outlet 102 communicating with the first inner cavity; the main control circuit board 20 is installed in the first inner cavity; the key mechanism 30 is used for a user to play, the key mechanism 30 is electrically connected to the main control circuit board 20, the key mechanism 30 includes the keyboard 31, the keyboard 31 is installed in the first inner cavity, and the first key 311, the second key 312 and the third key 313 protrude out of the housing 10 for the user to play; the sound mechanism 40 is configured to receive a signal input by the key mechanism 30 or an external audio device and play a sound through the sound outlet 102, the sound mechanism 40 is installed in the first inner cavity, and the sound mechanism 40 is electrically connected to the main control circuit board 20.

When the electronic musical instrument 100 is used, a user inputs signals to the main control circuit board 20 by knocking the first key 311 and/or the second key 312 and/or the third key 313, and the main control circuit board 20 controls the sound mechanism 40 to play corresponding sounds according to the signals input by the user by knocking the keys. It should be noted that the main control circuit board 20 includes a control chip and a memory, a sound sample recorded in advance is stored in the memory, and the main control circuit board 20 sequentially outputs the sound sample according to the sequence and rhythm of the signal input by the user hitting the key to form the music.

In the electronic musical instrument 100 disclosed in the present embodiment, the main control circuit board 20, the key mechanism 30, and the audio mechanism 40 are integrated with the casing 10, so that the electronic musical instrument is convenient to carry without using an external audio device. Further, the electronic musical instrument 100 disclosed therein can be combined to obtain a larger number of chords and can be downsized by using the keyboard 31 described above, thereby having a larger market space.

Referring to fig. 4-7, as an improvement of the present embodiment, the housing 10 has a vertical symmetry plane S, and the sound outlet 102 includes a first sound outlet 1021, a second sound outlet 1022 disposed symmetrically with respect to the vertical symmetry plane S and the first sound outlet 1021, and at least one third sound outlet 1023 disposed at the bottom of the housing 10 and communicated with the first inner cavity.

As a modification of the present embodiment, it is defined that the electronic musical instrument 100 has a front end F facing the listener and a rear end B facing the playing, and the first sound outlet 1021 and the second sound outlet 1022 are both close to the front end F. In this arrangement, when the sound mechanism plays sound through the first sound outlet 1021, the second sound outlet 1022, and the third sound outlet 1023, a stereo surround sound effect can be provided to the listener.

As a modification of this embodiment, the third sound outlets 1023 are provided in two, one of the third sound outlets 1023 is provided near the front end F, and the other third sound outlet 1023 is provided near the rear end B. This arrangement provides the effect of diffusing sound.

As an improvement of this embodiment, the housing 10 further includes a first cover 11 covering the first sound outlet 1021 and a second cover 12 covering the second sound outlet 1022, where the first cover 11 and the second cover 12 both have a plurality of through holes formed therethrough, and the first cover 11 and the second cover 12 extend in opposite directions in an inclined manner in a direction toward the top of the housing 10. By providing the first cover plate 11 and the second cover plate 12 to extend obliquely toward each other in the direction toward the top of the housing 10, the sound diffusion effect can be maximized.

As a modification of the present embodiment, the casing 10 further includes an upper casing 13, a lower casing 14 connected to the upper casing 13, and a ring member 15 annularly disposed at a connection portion of the upper casing 13 and the lower casing 14, the ring member 15 forms a first handle 151 at a first sound outlet 1021, forms a second handle 151 at a second sound outlet 1022, the first sound outlet 1021 and the second sound outlet 1022 are disposed at a connection portion of the upper casing 13 and the lower casing 14, and the first sound outlet 1021 and the second sound outlet 1022 are recessed inward at the connection portion of the upper casing 13 and the lower casing 14 to form a bypass region so that the ring member 15 forms the first handle 151 and the second handle 152. The keys 31 protrude from the surface of the upper case 13. Preferably, the annular element 15 is annular.

As a modification of this embodiment, the third sound outlet 1023 is formed by a combination of a plurality of through holes penetrating through the lower housing 14.

As a modification of the present embodiment, the outer casing 10 has a roughly turtle-shell shape.

Referring to fig. 4 and fig. 8-9, as a modified form of this embodiment, the audio mechanism 40 includes a first speaker 41, a second speaker 42 and a bass mechanism 43, the first speaker 41 communicates with the first sound outlet 1021 and the bass mechanism 43, the second speaker 42 communicates with the second sound outlet 1022 and the bass mechanism 43, and the bass mechanism 43 is installed in the first cavity and plays sound outwards through the third sound outlet 1023. By providing the audio mechanism 40 including the first speaker 41, the second speaker 42 and the bass mechanism 43, the audio mechanism 40 can simultaneously cover the treble band and the bass band, so that a richer auditory experience can be provided to the user.

As a modification of this embodiment, the bass mechanism 43 includes a bass housing 431 having a second cavity 401, and at least one diaphragm 432, the first speaker 41 and the second speaker 42 are both communicated with the second cavity 401, the bass housing 431 is provided with at least one mounting hole 4311 communicated with the second cavity 401, and the diaphragm 432 is mounted at the mounting hole 4311. When the acoustic mechanism 40 is used, the first speaker 41 and the second speaker 42 respectively play sound through the first sound outlet 1021 and the second sound outlet 1022, and at the same time, the first speaker 41 and the second speaker 42 transmit sound to the second cavity 401 of the bass housing 431, the sound entering the second cavity 401 drives the diaphragm 432 to vibrate to emit sound, and the sound emitted by the vibration of the diaphragm 432 is played through the third sound outlet 1023.

As an improvement manner of this embodiment, the bass housing 431 further includes a partition plate 4312 disposed in the second inner cavity 401 to divide the second inner cavity 401 into a first chamber 4011 and a second chamber 4012, the first speaker 41 is communicated with the first chamber 4011, the first chamber 4011 is provided with at least one mounting hole 4311, each mounting hole 4311 is provided with the diaphragm 432, the second speaker 42 is communicated with the second chamber 401, the second chamber 401 is provided with at least one mounting hole 4311, and each mounting hole 4311 is provided with the diaphragm 432.

As an improvement manner of this embodiment, the mounting holes 4311 are respectively opened on both sides of the first chamber 4011, and the vibrating diaphragm 432 is installed at each mounting hole 4311. The mounting holes 4311 are formed in two sides of the second chamber 4012, and the vibrating diaphragm 432 is mounted in each mounting hole 4311.

As a modified form of this embodiment, the bass mechanism 43 is disposed between the first speaker 41 and the second speaker 42, a first pipe 411 communicating with the first speaker 41 is disposed on a side of the first speaker 41 away from the first sound outlet 1021, a second pipe (not shown) communicating with the first chamber 4011 is disposed on a side of the bass housing 431 close to the first speaker 41, and the first pipe 411 is connected to the second pipe. A third pipe (not shown) communicating with the second speaker 42 is disposed on a side of the second speaker 42 away from the second sound outlet 1022, a fourth pipe 4314 communicating with the second chamber 4012 is disposed on a side of the bass housing 431 close to the second speaker 42, and the third pipe is connected to the second pipe 4314.

As an improvement of this embodiment, the bass mechanism 43 further includes a first sealing member 433 and a second sealing member 434, the first sealing member 433 is sleeved outside the first tube 411 and the second tube, and the second sealing member 434 is sleeved outside the third tube and the fourth tube 4314. With this design, by providing the first sealing member 433 and the second sealing member 434, the air tightness at the joint of the first pipe 411 and the second pipe, and at the joint of the third pipe and the fourth pipe 4314 can be ensured, so that the sound emitted by the first speaker 41 and the second speaker 42 does not leak, and can be better propagated into the bass housing 431, and the bass mechanism 43 can play a high-quality low-frequency sound band.

As an improvement of this embodiment, the electronic musical instrument 100 further includes a set key mechanism 50, the set key mechanism 50 includes a plurality of set keys protruding from the housing, and the set key mechanism is electrically connected to the main control circuit board 20. In one embodiment, the setting keys may be used to set the tone of the keys 31, and by setting the setting keys, the electronic musical instrument disclosed in the present invention may be used as a musical instrument such as a piano, a guitar, an electronic drum, a cello, a violin, a harmonica, etc.

Referring to fig. 3 again, as an improvement of the present embodiment, the electronic musical instrument 100 further includes a volume knob 60, and the volume knob 60 is electrically connected to the main control circuit board 20 for controlling the volume of the sound played by the sound mechanism 40.

As a modification of the present embodiment, the electronic musical instrument 100 further includes a balance knob 70, and the balance knob 70 is electrically connected to the main control circuit board 20 for controlling the balance of the sound played by the sound mechanism 40.

As a modification of the present embodiment, the electronic musical instrument 100 further includes an interface component (not shown), and the interface component is electrically connected to the main control circuit board 20 for connecting the electronic musical instrument 100 with the expansion device.

As a modification of this embodiment, the electronic musical instrument 100 further includes a battery assembly (not shown), and the main control circuit board 20, the audio mechanism 40, and the key mechanism 30 are all electrically connected to the battery assembly. Preferably, the battery module is a rechargeable battery module. It should be noted that the electronic musical instrument is not limited to be powered by the battery pack, and may be powered by an external power source connected through a power line, specifically according to the actual design requirement.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The keyboard is used for playing electronic musical instruments and is characterized by comprising a first key, five second keys and ten third keys, wherein five second keys surround the periphery of the first key, ten third keys surround the five second keys and are far away from the periphery of one side of the first key, the first key is provided with a first central point, each second key is provided with a second central point, one side of the second key, far away from the first key, is provided with two third keys, and the two third keys are respectively positioned on two sides of an extension line of a connecting line of the first central point and the second central point.

2. The keyboard of claim 1, wherein five of the second keys are equally spaced around the periphery of the first key.

3. The keyboard of claim 2, wherein the two third keys are symmetrically arranged with respect to an extension of a line connecting the first center point and the second center point.

4. The keyboard of claim 3, wherein the first key, the second key and the third key are one or more of a circle, an ellipse and a regular N-sided polygon, where N is an integer and N ≧ 3.

5. The keyboard of claim 4, wherein the first key, the second key, and the third key are all regular pentagons, and the first key and the second key, and the second key and the third key are all arranged with their edges aligned in a regular manner.

6. The keyboard of claim 5, wherein the first key, the second key, and the third key each have a side length of 20-30 mm.

7. The keyboard of claim 6, wherein the first key, the second key and the third key each have a side length of 25 ± 1 mm.

8. The keyboard of claim 1, further comprising a keyboard pad, wherein the first key, the second key, and the third key are secured to a same side of the keyboard pad, and wherein the first key, the second key, the third key, and the keyboard pad are integrally formed.

9. The keyboard of claim 8, wherein the keyboard is a silicone keypad.

10. An electronic musical instrument, characterized in that it comprises a keyboard as claimed in any one of claims 1 to 9.

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