CN204242579U - A portable electronic metronome - Google Patents

Abstract

The utility model discloses a kind of portable electronic metronome, comprise: housing, hummer module, step-up discharge module, battery module, photovoltaic panel, described housing four side has hummer vocal hole, case top is equipped with photovoltaic panel, case top is furnished with portable hand handle, enclosure interior is equipped with hummer module, step-up discharge module, battery module, and hummer module, step-up discharge module, battery module, photovoltaic panel are connected successively, and back side of shell has power switch.After switching on power, battery module is by step-up discharge module to hummer module for power supply, and hummer sends strike metronome, sends strike metronome from the vocal hole of portable electronic metronome housing four side, when power switch is closed, photovoltaic panel is sustainable to charging battery module.The utility model advantage is the electronic metronome of Non-energy-consumption, continue charging battery module energy storage with photovoltaic panel charging modes, by step-up discharge module to hummer module for power supply, hummer module sends strike metronome, portable electronic metronome volume is little, lightweight, space hold is little, possesses environmental protection portable characteristics of energy saving.

Description

A portable electronic metronome

technical field

The utility model relates to a portable electronic metronome, which belongs to the technical field of vocal music and musical instrument practice equipment.

Background technique

A metronome for ordinary vocal music and musical instrument practice uses a mechanical spring as the power source of the pendulum. Practitioners need to twist the spring at intervals to keep the pendulum striking. The duration of pendulum striking is limited, and the mechanical pendulum-type metronome is relatively bulky. It is inconvenient to carry and takes up a lot of space. The portable electronic metronome uses photovoltaic panels to charge, which is environmentally friendly and energy-saving without energy consumption. With the long-life characteristics of lithium battery energy storage, it can keep the buzzer working for a long time and continuously emit beat sounds, which is convenient for practitioners. Portable use.

Contents of the invention

The purpose of the utility model is to provide a portable electronic metronome, which achieves the effect of making beat sound and can keep working for a long time.

The purpose of this utility model is to realize through the following technical solutions:

As a technical solution, a portable electronic metronome includes: a housing, a buzzer module, a boost discharge module, a battery module, and a photovoltaic panel. There are buzzer sound holes on the four sides of the housing. The top is equipped with a photovoltaic panel, and the top of the shell is equipped with a portable handle. The inside of the shell is equipped with a buzzer module, a boost discharge module, and a battery module. The buzzer module, boost discharge module, battery module, and photovoltaic panels are connected in sequence. , There is a power switch on the back of the housing. After the power is turned on, the battery module supplies power to the buzzer module through the boost discharge module, the buzzer emits a beat sound, and the beat sound is emitted from the sound holes on the four sides of the portable electronic metronome housing. When the power switch is turned off, the photovoltaic The board continues to charge the battery module.

As a technical solution, the buzzer module uses a 5V active buzzer.

As a technical solution, the battery module uses lithium-ion batteries.

As a technical solution, the boost discharge module uses the HT7050 boost chip.

Description of drawings

Below according to accompanying drawing, the utility model is described in further detail.

Fig. 1 is the structural representation of a kind of portable electronic metronome described in the utility model embodiment;

Fig. 2 is the schematic diagram of the circuit structure of a kind of portable electronic metronome described in the utility model embodiment;

Description of symbols in attached drawings 1 and 2: 1. Shell, 2. Portable handle, 3. Sound hole, 4. Power switch, 5. Photovoltaic panel, 6. Buzzer module, 7. Boost discharge module, 8 , battery module.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is specifically introduced as follows:

As a preference, a portable electronic metronome includes: housing 1, portable handle 2, sound hole 3, power switch 4, photovoltaic panel 5, buzzer module 6, boost discharge module 7, battery module 8, The shell 1 is made of black plastic as a whole, the portable handle 2 and the photovoltaic panel 5 are installed on the top of the shell 1, the four sides of the shell are sound holes 3, the power switch 4 is on the back of the shell 1, and the buzzer inside the shell The inverter module 6, the boost discharge module 7, and the battery module 8 are electrically connected in sequence, the photovoltaic panel 5 is electrically connected to the power switch 4, and the power switch 4 is electrically connected to the battery module 8.

As an implementation, the above-mentioned buzzer module uses a 5V active buzzer.

As an embodiment, the above-mentioned battery module uses a lithium-ion battery.

As an implementation, the above boost discharge module uses the HT7050 boost chip.

When the portable electronic metronome is working, the power switch 4 needs to be turned on, the battery module 8 is connected to the boost discharge module 7 through the power switch 4, and the HT7050 boost chip used in the boost discharge module 7 outputs 5 volts to the buzzer module 6 , the 5V active buzzer on the buzzer module 6 makes a beating sound. When the power switch 4 is turned off, the photovoltaic panel 5 is connected to the battery module 8 , and the photovoltaic panel 5 converts light energy into electrical energy to charge and store the lithium-ion battery of the battery module 8 .

Claims (4)

1. a portable electronic metronome, it is characterized in that, comprise: housing, hummer module, step-up discharge module, battery module, photovoltaic panel, described housing four side has hummer vocal hole, case top is equipped with photovoltaic panel, case top is furnished with portable hand handle, enclosure interior is equipped with hummer module, step-up discharge module, battery module, hummer module, step-up discharge module, battery module, photovoltaic panel is connected successively, back side of shell has power switch, after switching on power, battery module passes through step-up discharge module to hummer module for power supply, hummer sends strike metronome, strike metronome is sent from the vocal hole of portable electronic metronome housing four side, when power switch is closed, photovoltaic panel is sustainable to charging battery module.

2. according to a kind of portable electronic metronome described in claim 1, it is characterized in that, above-mentioned hummer module uses 5V active buzzer.

3. according to a kind of portable electronic metronome described in claim 1, it is characterized in that, above-mentioned battery module uses lithium ion battery.

4. a kind of portable electronic metronome according to claim 1, is characterized in that, above-mentioned step-up discharge module uses HT7050 boost chip.