CN207766021U - A kind of solar powered building speakerphone - Google Patents

Abstract

The utility model discloses a kind of solar powered building speakerphones, including Switching Power Supply, execution module, microcontroller, voltage detection module, level switch, supplying cell and solar recharging module, level switch fixing end is connected with execution module, one moved end of level switch is connected on the input terminal or output end of Switching Power Supply, another moved end of level switch is connected with supplying cell, voltage detection module output end is connected with single-chip microcomputer input, single-chip microcomputer output is connected with level switch control terminal, and solar recharging module is connected with supplying cell.The utility model detects power grid power supply situation by voltage detection module, when detecting utility grid power-off, microcontroller controls the energization connection that level switch connects supplying cell and execution module, the power supply mode of real-time switching executing module, charging operations are carried out to supplying cell using solar recharging module simultaneously, to ensure that the supplying cell moment has sufficient electricity, no longer need to frequently replace supplying cell.

Description

A kind of solar powered building speakerphone

Technical field

The utility model is related to building speakerphone technical fields.

Background technology

Growing with real estate industry, more and more high buildings and large mansions are built up, in order to ensure the people that lives in mansion The disengaging safety of member, nearly all in mansion, one floor installs the building speakerphone with gate function.

Existing building speakerphone is provided with display screen and input button, so that user carries according to the word on display screen Show and is operated.Current building speakerphone can only be powered using alternating current 220V voltage, and power supply system is incomplete.

Utility model content

The technical problems to be solved in the utility model is：A kind of solar powered building speakerphone is provided.

The solution that the utility model solves its technical problem is：

A kind of solar powered building speakerphone, including convert alternating current to the Switching Power Supply of direct current, Yi Jiyong In the execution module for realizing communication function, the Switching Power Supply is electrically connected with execution module, and the building speakerphone further includes Microcontroller, voltage detection module, level switch, supplying cell and solar recharging module, the supplying cell are chargeable Battery, the level switch include a fixing end, two moved ends and a control terminal, the level switch fixing end with hold Row module is connected, and one moved end of the level switch is connected on the input terminal or output end of Switching Power Supply, and the level switch is another One moved end is connected with supplying cell, and the voltage detection module output end is connected with single-chip microcomputer input, and the microcontroller is defeated Outlet is connected with level switch control terminal, and the solar recharging module is connected with supplying cell.

As a further improvement of the above technical scheme, the voltage detection module includes mutual inductor, rectifier bridge, capacitance C1, resistance R1, resistance R2 and zero-crossing comparator, the mutual inductor output end are connected with rectifier bridge input terminal, the capacitance C1 It is in parallel with rectification bridge output end, the resistance R1 and resistance R2 series connection, the branch of connecting of the capacitance C1 and resistance R1 and resistance R2 Road is in parallel, and one input of the zero-crossing comparator terminates between resistance R1 and resistance R2, another input end grounding, the mistake Zero comparator output end is connected with single-chip microcomputer input.

As a further improvement of the above technical scheme, the utility model further includes voltage zero-cross detection module, the electricity Zero detection module output end is pressed through with single-chip microcomputer input to be connected.

As a further improvement of the above technical scheme, the voltage zero-cross detection module includes diode D1~D2, electricity Hinder R2~R6, capacitance C2 and triode Q1, the diode D1 and diode D2 anodes respectively with mains electricity input end both ends phase Even, the diode D1 cathode and diode D2 cathode are grounded by resistance R3, and the resistance R4 and resistance R5 are connected on electricity The both ends R3 are hindered, the capacitance C2 is in parallel with resistance R5, and the triode Q1 base stages are connected between resistance R4 and resistance R5, emitter Ground connection, collector connect power supply by resistance R6, and collector is connected with single-chip microcomputer input.

As a further improvement of the above technical scheme, the solar recharging module includes photovoltaic panel and boosting electricity Road, the photovoltaic panel are connected with booster circuit input terminal, and the booster circuit output end is connected with supplying cell.

As a further improvement of the above technical scheme, the booster circuit includes model LM2755 booster type voltage stabilizing cores Piece, inductance L1, diode D3, battery R7 and resistance R8, the photovoltaic panel is connected with booster type voltage stabilizing chip input terminal, described The both ends inductance L1 are connected with the input terminal of booster type voltage stabilizing chip with output switching terminal respectively, and the booster type voltage stabilizing chip is opened It closes output end with diode D3 anodes to be connected, the diode D3 cathode are connected with supplying cell, the battery R7 and resistance R8 It is connected between supplying cell and ground, the booster type voltage stabilizing chip feedback terminates between battery R7 and resistance R8.

The utility model has the beneficial effects that：The utility model detects the power supply shape of utility grid by voltage detection module Condition, when detecting utility grid power-off, microcontroller controls the energization connection that level switch connects supplying cell and execution module, The power supply mode of real-time switching executing module, while charging operations are carried out to supplying cell using solar recharging module, to protect Demonstrate,proving the supplying cell moment has sufficient electricity, no longer needs to frequently replace supplying cell.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it His design scheme and attached drawing.

Fig. 1 is the circuit module frame figure of the utility model；

Fig. 2 is the voltage detection module embodiment schematic diagram of the utility model；

Fig. 3 is the voltage zero-cross detection module embodiment schematic diagram of the utility model；

Fig. 4 is the solar recharging module embodiments schematic diagram of the utility model.

Specific implementation mode

The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special Sign, can be with combination of interactions under the premise of not conflicting conflict.

Referring to Fig.1~Fig. 4, the utility model discloses a kind of solar powered building speakerphones, including by alternating current It is converted into the Switching Power Supply of direct current, and for realizing the execution module of communication function, the Switching Power Supply and execution module It is electrically connected, the building speakerphone further includes microcontroller, voltage detection module, level switch, supplying cell and solar energy Charging module, the supplying cell are rechargeable batteries, and the level switch includes a fixing end, two moved ends and one Control terminal, the level switch fixing end are connected with execution module, and one moved end of the level switch is connected on the defeated of Switching Power Supply Enter end or output end, another moved end of the level switch is connected with supplying cell, the voltage detection module output end with Single-chip microcomputer input is connected, and the single-chip microcomputer output is connected with level switch control terminal, the solar recharging module and confession Battery is connected.Specifically, the utility model detects the power supply situation of utility grid by voltage detection module, when detecting city When electric grid cut-off, microcontroller controls the energization connection that level switch connects supplying cell and execution module, and switching in real time executes The power supply mode of module, while charging operations are carried out to supplying cell using solar recharging module, when ensureing supplying cell Pointer has sufficient electricity, no longer needs to replace supplying cell constantly.

It is further used as preferred embodiment, in specific embodiment of the present invention, the voltage detection module packet Mutual inductor, rectifier bridge, capacitance C1, resistance R1, resistance R2 and zero-crossing comparator are included, the mutual inductor output end and rectifier bridge are defeated Enter end to be connected, the capacitance C1 is in parallel with rectification bridge output end, the resistance R1 and resistance R2 series connection, the capacitance C1 and resistance The series arm of R1 and resistance R2 are in parallel, and one input of the zero-crossing comparator terminates between resistance R1 and resistance R2, another A input end grounding, the zero-crossing comparator output end are connected with single-chip microcomputer input.The utility model is obtained using mutual inductor The supply voltage of mains electricity input end, when power grid breaks down, transformer output voltage zero, microcontroller is by obtaining zero passage ratio Compared with the output end level signal of device, power grid power supply situation, real-time control level switch are judged indirectly.

It is further used as preferred embodiment, further includes voltage zero-cross detection in specific embodiment of the present invention Module, the voltage zero-cross detection module output end are connected with single-chip microcomputer input.When microcontroller detects mains electricity input end wink When voltage when being zero, control level switch connect mains electricity input end and Switching Power Supply energization connection or Switching Power Supply with hold The energization of row module connects, and prevents to generate spark when circuit connection.

Specifically, the voltage zero-cross detection module includes diode D1~D2, resistance R2~R6, capacitance C2 and three poles Pipe Q1, the diode D1 and diode D2 anodes are connected with mains electricity input end both ends respectively, the diode D1 cathode and two Pole pipe D2 cathode are grounded by resistance R3, and the resistance R4 and resistance R5 are connected on the both ends resistance R3, the capacitance C2 and electricity It is in parallel to hinder R5, the triode Q1 base stages are connected between resistance R4 and resistance R5, and emitter ground connection, collector is connect by resistance R6 Power supply, collector are connected with single-chip microcomputer input.Wherein, the diode D1 and diode D2 plays rectified action, input electricity Pressure considers the high-frequency components except input voltage, when triode Q1 base stages are low after resistance R4 and resistance R5 partial pressures using capacitance C2 When 0.7V, triode Q1 cut-offs, triode Q1 collectors export high level, and microcontroller detects that voltage zero-cross detection module is defeated When going out high level, control level switch realizes energization connection or Switching Power Supply and the execution of mains electricity input end and Switching Power Supply The energization of module connects.

It is further used as preferred embodiment, in specific embodiment of the present invention, the solar recharging module Including photovoltaic panel and booster circuit, the photovoltaic panel may be provided at the outside of building interphone device, for turning solar energy Change electric energy into, the photovoltaic panel is connected with booster circuit input terminal, and the booster circuit output end is connected with supplying cell.

Specifically, the booster circuit includes model LM2755 booster types voltage stabilizing chip, inductance L1, diode D3, electricity Pond R7 and resistance R8, the photovoltaic panel are connected with booster type voltage stabilizing chip input terminal, the both ends the inductance L1 respectively with boosting The input terminal of type voltage stabilizing chip is connected with output switching terminal, and the output switching terminal and diode D3 of the booster type voltage stabilizing chip are just Extremely it is connected, the diode D3 cathode are connected with supplying cell, and the battery R7 and resistance R8 are connected on supplying cell and ground Between, the booster type voltage stabilizing chip feedback terminates between battery R7 and resistance R8.The liter that the utility model passes through the model The setting of die mould voltage stabilizing chip effectively simplifies the circuit structure of the booster circuit.

The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.

Claims (6)

1. a kind of solar powered building speakerphone, including the Switching Power Supply of direct current is converted alternating current to, and be used for Realize that the execution module of communication function, the Switching Power Supply are electrically connected with execution module, it is characterised in that：It further include monolithic Mechanical, electrical pressure detection module, level switch, supplying cell and solar recharging module, the supplying cell are rechargeable batteries, The level switch includes a fixing end, two moved ends and a control terminal, the level switch fixing end and execution mould Block is connected, and one moved end of the level switch is connected on the input terminal or output end of Switching Power Supply, the level switch another Moved end is connected with supplying cell, and the voltage detection module output end is connected with single-chip microcomputer input, the single-chip microcomputer output It is connected with level switch control terminal, the solar recharging module is connected with supplying cell.

2. a kind of solar powered building speakerphone according to claim 1, it is characterised in that：The voltage detecting mould Block includes mutual inductor, rectifier bridge, capacitance C1, resistance R1, resistance R2 and zero-crossing comparator, the mutual inductor output end and rectification Bridge input terminal is connected, and the capacitance C1 is in parallel with rectification bridge output end, and the resistance R1 and resistance R2 connect, the capacitance C1 and The series arm of resistance R1 and resistance R2 are in parallel, and one input of the zero-crossing comparator terminates between resistance R1 and resistance R2, Another input end grounding, the zero-crossing comparator output end are connected with single-chip microcomputer input.

3. a kind of solar powered building speakerphone according to claim 1, it is characterised in that：It further include voltage zero-cross Detection module, the voltage zero-cross detection module output end are connected with single-chip microcomputer input.

4. a kind of solar powered building speakerphone according to claim 3, it is characterised in that：The voltage zero-cross inspection It includes diode D1~D2, resistance R2~R6, capacitance C2 and triode Q1 to survey module, and the diode D1 and diode D2 are just Pole is connected with mains electricity input end both ends respectively, and the diode D1 cathode and diode D2 cathode are grounded by resistance R3, institute It states resistance R4 and resistance R5 and is connected on the both ends resistance R3, the capacitance C2 is in parallel with resistance R5, and the triode Q1 base stages are connected on Between resistance R4 and resistance R5, emitter ground connection, collector connects power supply, collector and single-chip microcomputer input phase by resistance R6 Even.

5. a kind of solar powered building speakerphone according to claim 1, it is characterised in that：The solar recharging Module includes photovoltaic panel and booster circuit, and the photovoltaic panel is connected with booster circuit input terminal, the booster circuit output end It is connected with supplying cell.

6. a kind of solar powered building speakerphone according to claim 5, it is characterised in that：The booster circuit packet Include model LM2755 booster types voltage stabilizing chip, inductance L1, diode D3, battery R7 and resistance R8, the photovoltaic panel and liter Die mould voltage stabilizing chip input terminal be connected, the both ends the inductance L1 respectively with the input terminal and output switching terminal of booster type voltage stabilizing chip It is connected, the output switching terminal of the booster type voltage stabilizing chip is connected with diode D3 anodes, the diode D3 cathode and power supply Battery is connected, and the battery R7 and resistance R8 are connected between supplying cell and ground, the booster type voltage stabilizing chip feedback termination Between battery R7 and resistance R8.