CN207766029U - A kind of building speakerphone of changeable power supply mode - Google Patents
A kind of building speakerphone of changeable power supply mode Download PDFInfo
- Publication number
- CN207766029U CN207766029U CN201820034559.XU CN201820034559U CN207766029U CN 207766029 U CN207766029 U CN 207766029U CN 201820034559 U CN201820034559 U CN 201820034559U CN 207766029 U CN207766029 U CN 207766029U
- Authority
- CN
- China
- Prior art keywords
- resistance
- power supply
- level switch
- input
- detection module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a kind of building speakerphones of changeable power supply mode, including Switching Power Supply and execution module, the Switching Power Supply is electrically connected with execution module, the utility model further includes microcontroller, voltage detection module, level switch and supplying cell, the level switch includes a fixing end, two moved ends and a control terminal, the level switch fixing end is connected with execution module, one moved end of the level switch is connected on the input terminal or output end of Switching Power Supply, another moved end of the level switch is connected with supplying cell, the voltage detection module output end is connected with single-chip microcomputer input, the single-chip microcomputer output is connected with level switch control terminal.Specifically, the utility model detects the power supply situation of utility grid by voltage detection module, and 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.
Description
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 is powered using alternating current 220V, is stopped once long-time occurs in building location
Electricity, building speakerphone are stopped immediately, to influence entering for resident family in building.
Utility model content
The technical problems to be solved in the utility model is：A kind of building speakerphone of changeable power supply mode is provided.
The solution that the utility model solves its technical problem is：
A kind of building speakerphone of changeable power supply mode, including the Switching Power Supply of direct current is converted alternating current to, with
And the execution module for realizing communication function, the Switching Power Supply are electrically connected with execution module, the utility model further includes
Microcontroller, voltage detection module, level switch and supplying cell, the level switch include a fixing end, two moved ends
And a control terminal, the level switch fixing end are connected with execution module, one moved end of the level switch is connected on switch
The input terminal or output end of power supply, another moved end of the level switch are connected with supplying cell, the voltage detection module
Output end is connected with single-chip microcomputer input, and the single-chip microcomputer output is connected with level switch control terminal.
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.
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.
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.
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 relations being previously mentioned in text, not single finger element directly connects, and referring to can be according to specific implementation feelings
Condition, by adding or reducing connecting element, to form more preferably circuit structure.Each technical characteristic in the invention,
It can be with combination of interactions under the premise of not conflicting conflict.
Referring to Fig.1~Fig. 3, the utility model discloses a kind of building speakerphones of changeable power supply mode, including will hand over
Galvanic electricity 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 is electrically connected, and the utility model further includes microcontroller, voltage detection module, level switch and supplying cell, the electricity
It includes a fixing end, two moved ends and a control terminal to be opened flat pass, and the level switch fixing end is connected with execution module,
One moved end of the level switch is connected on the input terminal or output end of Switching Power Supply, another moved end of the level switch and confession
Battery is connected, and the voltage detection module output end is connected with single-chip microcomputer input, and the single-chip microcomputer output is opened with level
Control terminal is closed to be connected.Specifically, the utility model detects the power supply situation of utility grid by voltage detection module, when detecting
When utility grid powers off, microcontroller controls the energization connection that level switch connects supplying cell and execution module, and switching in real time is held
The power supply mode of row module.
It is further used as preferred embodiment, specific embodiment of the present invention, 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 inputted with rectifier bridge
End is connected, and the capacitance C1 is in parallel with rectification bridge output end, the resistance R1 and resistance R2 series connection, the capacitance C1 and resistance R1
In parallel with the series arm of resistance R2, 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.The utility model obtains city using mutual inductor
The supply voltage of electrical input, when power grid breaks down, transformer output voltage zero, microcontroller is by obtaining Zero-cross comparator
The output end level signal of device judges power grid power supply situation, real-time control level switch indirectly.
It is further used as preferred embodiment, specific embodiment of the present invention, the utility model further includes voltage
Zero passage detection module, the voltage zero-cross detection module output end are connected with single-chip microcomputer input.When microcontroller detects alternating current
When input terminal instantaneous voltage is zero, control level switch connects mains electricity input end and the energization of Switching Power Supply connects, or switch
The energization of power supply and execution 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.
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 (4)
1. a kind of building speakerphone of changeable power supply mode, including the Switching Power Supply of direct current is converted alternating current to, and
For realizing the execution module of communication function, the Switching Power Supply is electrically connected with execution module, it is characterised in that：It further include list
The mechanical, electrical pressure detection module of piece, level switch and supplying cell, the level switch include a fixing end, two moved ends with
And a control terminal, the level switch fixing end are connected with execution module, one moved end of the level switch is connected on switch electricity
The input terminal or output end in source, another moved end of the level switch are connected with supplying cell, and the voltage detection module is defeated
Outlet is connected with single-chip microcomputer input, and the single-chip microcomputer output is connected with level switch control terminal.
2. a kind of building speakerphone of changeable power supply mode according to claim 1, it is characterised in that：The voltage inspection
It includes mutual inductor, rectifier bridge, capacitance C1, resistance R1, resistance R2 and zero-crossing comparator to survey module, the mutual inductor output end with
Rectifier bridge input terminal is connected, and the capacitance C1 is in parallel with rectification bridge output end, the resistance R1 and resistance R2 series connection, the capacitance
C1 is in parallel with the series arm of resistance R1 and resistance R2, the input of the zero-crossing comparator one terminate at resistance R1 and resistance R2 it
Between, another input end grounding, the zero-crossing comparator output end is connected with single-chip microcomputer input.
3. a kind of building speakerphone of changeable power supply mode according to claim 2, it is characterised in that：Further include voltage
Zero passage detection module, the voltage zero-cross detection module output end are connected with single-chip microcomputer input.
4. a kind of building speakerphone of changeable power supply mode according to claim 3, it is characterised in that：The voltage mistake
Zero detection module includes diode D1~D2, resistance R2~R6, capacitance C2 and triode Q1, the diode D1 and diode
D2 anodes are connected with mains electricity input end both ends respectively, and the diode D1 cathode and diode D2 cathode are connect by resistance R3
Ground, the resistance R4 and resistance R5 are connected on the both ends resistance R3, and the capacitance C2 is in parallel with resistance R5, the triode Q1 base stages
It is connected between resistance R4 and resistance R5, emitter ground connection, collector connects power supply, collector and single-chip microcomputer input by resistance R6
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034559.XU CN207766029U (en) | 2018-01-08 | 2018-01-08 | A kind of building speakerphone of changeable power supply mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034559.XU CN207766029U (en) | 2018-01-08 | 2018-01-08 | A kind of building speakerphone of changeable power supply mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207766029U true CN207766029U (en) | 2018-08-24 |
Family
ID=63183366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820034559.XU Expired - Fee Related CN207766029U (en) | 2018-01-08 | 2018-01-08 | A kind of building speakerphone of changeable power supply mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207766029U (en) |
-
2018
- 2018-01-08 CN CN201820034559.XU patent/CN207766029U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202886459U (en) | Digital zero cross detection circuit and household air-conditioner | |
| CN205453116U (en) | Survival voltage bleeder circuit and electric rice cooker | |
| CN106981784A (en) | A kind of energy-saving Zero-power-consumption standby Socket for computor circuit | |
| CN207766029U (en) | A kind of building speakerphone of changeable power supply mode | |
| CN204681656U (en) | A kind of single live wire touch switch circuit | |
| CN208092563U (en) | A kind of pool with fountain water level controller | |
| CN207766021U (en) | A kind of solar powered building speakerphone | |
| CN105866533B (en) | A kind of Multifunctional single-phase time-sharing electricity meter | |
| CN208479236U (en) | A kind of Double-battery powered circuit | |
| CN202032704U (en) | Air-conditioner energy saving controller | |
| CN203733719U (en) | Full wave resistive and capacitive voltage reduction relay drive circuit | |
| CN205160495U (en) | Zero power consumption standby touches power down switch | |
| CN209133785U (en) | Water-proof function power outlet | |
| CN206432769U (en) | A kind of utilization solar power generation evades the generating equipment of peak of power consumption | |
| CN204290451U (en) | Charger | |
| CN207884941U (en) | A kind of AC synchronized samplings power circuit | |
| CN208112328U (en) | A kind of e-commerce pavilion power supply for electrical equipment device | |
| CN204832346U (en) | DC resistance measuring appearance device | |
| CN202282533U (en) | Multifunctional combined socket | |
| CN203482083U (en) | Power supply isolation circuit and wireless communication module | |
| CN203368353U (en) | High-current power supply converting circuit | |
| CN206023357U (en) | A kind of circuit for carrying out online switching between civil power and inversion | |
| CN201388153Y (en) | Regulated power supply of gas water heater | |
| CN209514349U (en) | A kind of intelligence micro climate adjuster | |
| CN206962697U (en) | A kind of part passive power factor corrective control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |