CN219286026U

CN219286026U - Connecting device

Info

Publication number: CN219286026U
Application number: CN202320619153.9U
Authority: CN
Inventors: 李桦标; 谢豪
Original assignee: Huashi Shenzhen Technology Co ltd
Current assignee: Huashi Shenzhen Technology Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-06-30
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses a connecting device, comprising: an MCU; the first connecting module comprises an input port and an output port, wherein the input port is connected with the musical instrument, and the output port is connected with the MIDI equipment; the transmission module is connected between the MCU and the first connection module and is used for transmitting MIDI information sent by the musical instrument to the MCU or transmitting MIDI information sent by the MCU to the output port; the second connecting module comprises a plurality of groups of connecting terminals, the connecting terminals comprise input terminals and output terminals, the input terminals are connected with the output end of the effector, and the output terminals are connected with the input end of the effector; the switch module comprises a plurality of groups of switch units, one switch unit is connected between each group of connecting terminals and the MCU, and the MCU controls the on-off of the switch units according to MIDI messages sent by the musical instrument. The connecting device provided by the utility model does not need to detach the reconnection different effectors once every time the sequential sound effect combination is changed, thereby greatly improving the practicability and convenience.

Description

Connecting device

Technical Field

The utility model relates to the field of acoustic-electric musical instruments, in particular to a connecting device.

Background

The effector is an electronic instrument special for producing various effects, and the effector produces various special sound effects and enriches the content of vocal music through a series of measures of changing the waveform of original sound, modulating or delaying the phase of sound wave, enhancing the harmonic component of sound wave and the like. The existing partial musical instruments are internally provided with a plurality of effect components to generate different sound effects, but the types of the sound effects generated by the musical instruments are fixed and limited; or, the existing partial musical instrument generates different sound effects by connecting a plurality of external effectors, but the original effectors are required to be disassembled and new effectors are required to be connected again when the sound effect combination is changed in the mode, so that the use is very inconvenient and time-consuming.

Disclosure of Invention

The utility model provides a connecting device for solving the technical problem that in the prior art, a mode of changing sound effect combination by disassembling and connecting different external effectors is complex and time-consuming.

The technical scheme adopted by the utility model is as follows:

the utility model proposes a connection device comprising:

MCU；

the first connecting module comprises an input port and an output port, wherein the input port is connected with a musical instrument, and the output port is connected with MIDI equipment;

the transmission module is connected between the MCU and the first connection module and is used for transmitting MIDI information sent by a musical instrument to the MCU or transmitting MIDI information sent by the MCU to the output port;

the second connecting module comprises a plurality of groups of connecting terminals, wherein each connecting terminal comprises an input terminal and an output terminal, the input terminals are connected with the output end of the effector, and the output terminals are connected with the input end of the effector;

the switch module comprises a plurality of groups of switch units, one switch unit is connected between each group of connection terminals and the MCU, and the MCU controls the on-off of the switch units according to MIDI messages sent by the musical instrument.

Further, the mobile phone comprises a key module, wherein the key module comprises a plurality of keys, each switch unit is connected with one key, and a user controls the on-off of the switch unit by pressing the key.

Furthermore, the first connection module further comprises a transfer output port, the transfer output port is connected with MIDI equipment, a transfer transmission circuit is connected between the input port and the transfer output port, and the transfer transmission circuit transmits MIDI information received by the input port to the transfer output port.

Preferably, the transmission module includes: the photoelectric conversion device comprises an optocoupler isolator U5, a triode Q3 and a triode Q4, wherein the input side of the optocoupler isolator is connected with an input port, the output side of the optocoupler isolator is connected with an MCU, a collector of the triode Q4 is connected with the output port, an emitter of the triode Q4 is grounded, a base of the triode Q4 is connected with a collector of the triode Q3, a collector of the triode Q3 is connected with the output port, a power supply is connected between the output port and the collector of the triode Q3, the emitter of the triode Q3 is grounded, and a base of the triode Q3 is connected with the MCU.

Preferably, the switch unit comprises a double-pole double-throw relay, two controlled ends of the double-pole double-throw relay are connected with the MCU, one normally open end of the double-pole double-throw relay is connected with the input terminal, and the other normally open end of the double-pole double-throw relay is connected with the output terminal.

Preferably, the transit transmission circuit includes: transistor Q5, transistor Q6; the collector of the triode Q6 is connected with a transfer output port, the emitter of the triode Q6 is grounded, the base of the triode Q6 is connected with the collector of the triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the transfer output port, a power supply is connected between the transfer output port and the base of the triode Q5, and the base of the triode Q5 is connected with the input port.

Further, the display device is further included, and the input end of the display device is connected with the MCU.

Preferably, the model of the MCU is STM32F105RC.

Compared with the prior art, the plurality of groups of connecting terminals in the connecting device can be connected with a plurality of effectors, and the switch unit is arranged between each group of connecting terminals and the MCU, so that the combination of different effectors can be realized by controlling the on-off of the switch unit to realize different sound effect combinations, and the different effectors are detached and reconnected once without changing the successive sound effect combinations, thereby greatly improving the practicability and convenience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a connection device according to the present utility model;

fig. 2 is a circuit diagram of a transmission module according to an embodiment of the utility model;

FIG. 3 is a circuit diagram of a key module and a switch module according to an embodiment of the present utility model;

fig. 4 is a schematic view of an external structure of a connection device according to an embodiment of the present utility model.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Therefore, in order to solve the technical problem that in the prior art, the way of changing the sound effect combination by disassembling and connecting different external effectors is complex and time-consuming, the utility model provides a connecting device, which comprises:

MCU；

the first connecting module comprises an input port and an output port, the input port is connected with the musical instrument, and the output port is connected with the MIDI equipment;

the transmission module is connected between the MCU and the first connection module and transmits MIDI information sent by the musical instrument to the MCU or transmits MIDI information sent by the MCU to the output port;

the second connecting module comprises a plurality of groups of connecting terminals, each connecting terminal comprises an input terminal and an output terminal, the input terminals are connected with the output end of the effector, and the output terminals are connected with the input end of the effector;

the switch module comprises a plurality of groups of switch units, one switch unit is connected between each group of connecting terminals and the MCU, and the MCU controls the on-off of the switch units according to MIDI messages sent by the musical instrument.

Therefore, a plurality of groups of connecting terminals in the connecting device can be connected with a plurality of effectors, and a switch unit is arranged between each group of connecting terminals and the MCU, so that the combination of different effectors can be realized by controlling the on-off of the switch unit to realize different sound effect combinations, and the different effectors are detached and reconnected once without changing the successive sound effect combinations, thereby greatly improving the practicability and convenience.

The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.

As shown in fig. 1, the present utility model proposes a connection device comprising:

MCU；

the transmission module is connected between the MCU and the first connection module and is used for transmitting MIDI information sent by the musical instrument to the MCU or transmitting MIDI information sent by the MCU to the output port;

the switch module comprises a plurality of groups of switch units, one switch unit is connected between each group of connection terminals and the MCU, and the MCU controls the on-off of the switch units according to MIDI messages sent by the musical instrument;

the key module comprises a plurality of keys, each connecting terminal is correspondingly connected with one key, and a user controls the on-off of the switch unit by pressing the key.

Specifically, as shown in fig. 1 and 4, in the present embodiment, the first connection module in the connection device includes: the MIDI IN interface is an input port, and the MIDI OUT interface is an output port. The MIDI IN interface is connected with the MIDI OUT interface on the musical instrument by using a five-pin MIDI interface, and receives MIDI information sent by the musical instrument. The MIDI OUT interface uses a five pin MIDI interface, connects MIDI devices capable of receiving processed MIDI messages, and outputs MIDI messages from the MCUs to the MIDI devices.

Further, as shown in fig. 2, the transmission device in the connection device includes: optocoupler isolator U5, triode Q3 and triode Q4. The input side of the optical coupler isolator U5 is connected with the MIDI interface, and the output side of the optical coupler isolator U5; the collector of triode Q4 connects MIDI OUT interface, and triode Q4's projecting pole ground connection, triode Q3's collecting electrode is connected to triode Q4's base, and the MIDI OUT interface is connected to triode Q3, is connected with the power between triode Q3's collecting electrode and the MIDI OUT interface, and triode Q3's projecting pole ground connection, and MCU is connected to triode Q3's base.

Further, as shown IN fig. 1 and 4, the second connection module IN the connection device includes eight sets of connection terminals, each set of connection terminals including one input terminal IN and one output terminal OUT. A group of connection terminals can be connected with one effector, so that the connection device provided by the utility model can be connected with eight different effectors at most at a time, the input terminal IN is connected with the output end of the effector, and the output terminal OUT is connected with the input terminal of the effector. And a switch unit is connected between each group of connecting terminals and the MCU, and only when the switch unit between the connecting terminals and the MCU is conducted, an effector connected with the connecting terminals is connected with the musical instrument connected with the connecting device, and the effector can provide sound effect for the musical instrument. Specifically, as shown IN fig. 3, the switch unit includes a double-pole double-throw relay, two controlled ends of the double-pole double-throw relay are connected with the MCU, one normally open end of the double-pole double-throw relay is connected with the input terminal IN, the other normally open end of the double-pole double-throw relay is connected with the output terminal OUT, and when the controlled ends of the double-pole double-throw relay are electrified, the input terminal IN and the output terminal OUT are connected with the MCU.

Further, the first connection module further includes: and the transfer output port is connected with equipment capable of receiving and processing MIDI messages, the transfer output port is connected with the input port through a transfer transmission circuit, and the transfer transmission circuit transmits the MIDI messages received by the input port to the output port. Specifically, as shown in fig. 2, the transit transmission circuit includes: the switching output port of the triode Q5 and the triode Q6 is a MIDI THRU interface. The collector of the triode Q6 is connected with a MIDI THRU interface, the emitter of the triode Q6 is grounded, the base of the triode Q6 is connected with the collector of the triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the MIDI THRU interface, a power supply is connected between the MIDI THRU interface and the base of the triode Q5, and the base of the triode Q5 is connected with the output side of the opto-coupler isolator U5.

Correspondingly, the key module comprises eight keys, each key is connected with a switch unit, and a user controls the on-off of the switch units by pressing the keys. As shown in fig. 3, each key is correspondingly arranged in a key circuit, the key circuit is connected with the MCU, when the key is pressed, the key circuit forms a complete loop, and a key signal (current signal) generated by the key circuit sequentially flows through the MCU and the double-pole double-throw relay correspondingly connected with the key, so that the double-pole double-throw relay is controlled to be closed. In addition, the MCU may convert the key signals into MIDI messages and output the MIDI messages from the MIDI OUT interface, and in this embodiment, the model of the MCU is STM32F105RC.

Furthermore, the connecting device provided by the utility model further comprises a display module, wherein the display module comprises a display screen, and the display screen is connected with the MCU and is used for displaying the working state and configuration information of the connecting device. Furthermore, the first connection module further includes: a USB Device interface and a USB Host interface. The USB Device interface is used for connecting computer equipment, receiving MIDI information from the computer and transmitting the information to the MCU, and the MCU can control the on-off of the switch unit and output the MIDI information to the MIDI OUT interface after receiving the MIDI information. The USB Host interface can be connected with the USB MIDI musical instrument equipment, receives MIDI information from the USB MIDI musical instrument equipment and transmits the information to the MCU, and the MCU can control the on-off of the switch unit and output the MIDI information to the MIDI OUT interface after receiving the MIDI information. In addition, the connecting device is provided with a Learn key and an UP/Down key; after clicking the Learn key, when receiving the MIDI message, the MCU saves the sound effect combination corresponding to the MIDI message, and then the same MIDI message is received to call the sound effect combination, and the saved sound effect combination can be selected through the UP/Down key switching.

Therefore, the connecting device provided by the utility model can be connected with a plurality of effectors, and can realize the combination of different effectors by controlling the on-off of the switch unit so as to realize different sound effect combinations, and the different effectors are not required to be detached and reconnected once after the sound effect combination is changed, so that the practicability and convenience are greatly improved.

It is noted that the above-mentioned terms are used merely to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A connection device, comprising:

MCU；

2. The connection device according to claim 1, further comprising a key module including a plurality of keys, each of the switch units being connected to one of the keys, the user controlling the on-off of the switch unit by pressing the key.

3. The connection apparatus of claim 1, wherein the first connection module further comprises a transit output port, the transit output port being connected to a MIDI device, a transit transmission circuit being connected between the input port and the transit output port, the transit transmission circuit transmitting MIDI messages received by the input port to the transit output port.

4. The connection device of claim 1, wherein the transmission module comprises: the photoelectric conversion device comprises an optocoupler isolator U5, a triode Q3 and a triode Q4, wherein the input side of the optocoupler isolator is connected with an input port, the output side of the optocoupler isolator is connected with an MCU, a collector of the triode Q4 is connected with the output port, an emitter of the triode Q4 is grounded, a base of the triode Q4 is connected with a collector of the triode Q3, a collector of the triode Q3 is connected with the output port, a power supply is connected between the output port and the collector of the triode Q3, the emitter of the triode Q3 is grounded, and a base of the triode Q3 is connected with the MCU.

5. The connection device as claimed in claim 1, wherein the switching unit includes a double pole double throw relay, two controlled ends of the double pole double throw relay are connected to the MCU, one normally open end of the double pole double throw relay is connected to the input terminal, and the other normally open end of the double pole double throw relay is connected to the output terminal.

6. A connection device as claimed in claim 3, wherein the transit transmission circuit comprises: transistor Q5, transistor Q6; the collector of the triode Q6 is connected with a transfer output port, the emitter of the triode Q6 is grounded, the base of the triode Q6 is connected with the collector of the triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the transfer output port, a power supply is connected between the transfer output port and the base of the triode Q5, and the base of the triode Q5 is connected with the input port.

7. The connection device of claim 1, further comprising a display device, an input of the display device being connected to the MCU.

8. A connection device as claimed in claim 1, wherein the MCU is of the STM32F105RC type.