CN212518827U - Intelligent household audio-video system - Google Patents
Intelligent household audio-video system Download PDFInfo
- Publication number
- CN212518827U CN212518827U CN202020642545.3U CN202020642545U CN212518827U CN 212518827 U CN212518827 U CN 212518827U CN 202020642545 U CN202020642545 U CN 202020642545U CN 212518827 U CN212518827 U CN 212518827U
- Authority
- CN
- China
- Prior art keywords
- diode
- resistor
- capacitor
- inductor
- triode
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 33
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- 239000004302 potassium sorbate Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000005236 sound signal Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to the field of smart home, and discloses a smart home audio-visual system, which comprises a signal source, a network switch, a signal converter, a playing device and a power module, wherein the signal source is connected with the signal converter through the network switch, and the playing device and the power module are both connected with the signal converter; the power supply module comprises a voltage input end, a first resistor, a rectifier bridge, a second capacitor, a first inductor, a second inductor, a third capacitor, a first diode, a three-terminal voltage stabilizer, a fourth capacitor, a second resistor, a second diode, a third diode, a first triode, a storage battery and a third resistor, wherein the voltage input end is connected with an alternating current input end of the rectifier bridge through the first resistor, and the other end of the voltage input end is connected with another alternating current input end of the rectifier bridge. Implement the utility model discloses an audio-visual system of intelligence house has following beneficial effect: the circuit structure is simpler, the cost is lower, convenient maintenance, the security and the reliability of circuit are higher.
Description
Technical Field
The utility model relates to an intelligence house field, in particular to audio-visual system of intelligence house.
Background
The intelligent household audio-visual system realizes video and audio playing in different rooms only by a single signal source through the network switch and the converter, and can play any signal source equipment in a house through the playing equipment in the same room, so that the cost is reduced, and the use is more convenient. Fig. 1 is a schematic circuit diagram of a power supply part of a conventional smart home audio-visual system, and it can be seen from fig. 1 that the power supply part of the conventional smart home audio-visual system uses many components and parts, has a complex circuit structure and high hardware cost, and is inconvenient to maintain. In addition, because the power supply part of the traditional intelligent home audio-visual system lacks corresponding circuit protection functions, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, the security and the higher intelligent house audio-visual system of reliability of convenient maintenance, circuit.
The utility model provides a technical scheme that its technical problem adopted is: the intelligent home audio-visual system comprises a signal source, a network switch, a signal converter, a playing device and a power module, wherein the signal source is connected with the signal converter through the network switch, and the playing device and the power module are both connected with the signal converter;
the power supply module comprises a voltage input end, a first resistor, a rectifier bridge, a second capacitor, a first inductor, a second inductor, a third capacitor, a first diode, a three-terminal voltage stabilizer, a fourth capacitor, a second resistor, a second diode, a third diode, a first triode, a storage battery and a third resistor, wherein the voltage input end is connected with an alternating current input end of the rectifier bridge through the first resistor, the other end of the voltage input end is connected with another alternating current input end of the rectifier bridge, a direct current output end of the rectifier bridge is respectively connected with one end of the second capacitor and one end of the first inductor, the other end of the first inductor is connected with a first pin of the three-terminal voltage stabilizer, another direct current output end of the rectifier bridge is respectively connected with the other end of the second capacitor and one end of the second inductor, and a second pin of the three-terminal voltage stabilizer is respectively connected with one end of the fourth capacitor, One end of the second resistor is connected with the anode of the second diode, a third lead angle of the three-terminal voltage stabilizer is respectively connected with the anode of the first diode, the cathode of the second diode, the cathode of the third diode and one end of the third resistor, the cathode of the first diode is connected with one end of the third capacitor, a collector of the first triode is connected with the anode of the third diode, an emitter of the first triode is connected with the anode of the storage battery, a base of the first triode is connected with the other end of the third resistor, and the other end of the second inductor is respectively connected with the other end of the third capacitor, the other end of the fourth capacitor, the other end of the second resistor and the cathode of the storage battery.
In the audio-visual system of smart home, the model of the third diode is E-202.
In the audio-visual system of intelligence house, power module still includes the fourth resistance, the one end of fourth resistance with the negative pole of second diode is connected, the other end of fourth resistance with the negative pole of third diode is connected.
In the audio-visual system of intelligence house, the resistance of fourth resistance is 36k omega.
In the audio-visual system of intelligence house, first triode is PNP type triode.
In the audio-visual system of intelligence house, three terminal regulator's model is LM 7824.
Implement the utility model discloses an audio-visual system of intelligence house has following beneficial effect: owing to be equipped with the signal source, the network switch, signal converter, playback devices and power module, power module includes voltage input end, first resistance, the rectifier bridge, the second electric capacity, first inductance, the second inductance, the third electric capacity, first diode, three terminal regulator, the fourth electric capacity, the second resistance, the second diode, the third diode, first triode, battery and third resistance, this power module compares with traditional intelligent house audio-visual system's power supply part, its components and parts that use are less, owing to saved some components and parts, can reduce the hardware cost like this, in addition, the third diode is used for carrying out current-limiting protection, therefore circuit structure is comparatively simple, the cost is lower, convenient maintenance, the security and the reliability of circuit are higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic circuit diagram of a power supply portion of a conventional smart home audio/video system;
fig. 2 is a schematic structural diagram of an embodiment of the smart home audio/video system of the present invention;
fig. 3 is a schematic circuit diagram of the power supply module in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses in the audio-visual system embodiment of intelligence house, this audio-visual system of intelligence house's schematic structure diagram is shown in fig. 2. In fig. 2, the intelligent home video system includes a signal source 1, a network switch 2, a signal converter X1, a playback device 4, and a power module 5, where the signal source 1 is connected to the signal converter X1 through the network switch 2, and the playback device 4 and the power module 5 are both connected to the signal converter X1.
The network switch 2 receives the digital signal from the signal source 1, the signal converter X1 receives the digital signal from the network switch 2 and converts the digital signal into a video signal and an audio signal, and the playing device 4 plays the video signal and the audio signal. The video signal and the audio signal are HDMI signals. The network switch 2 is similar to an existing local area network switch. The signal source 1 is a mobile phone, and is used for directly playing the video information and the audio information of the signal source 1 through the playing device 4.
In this embodiment, the signal source 1, the network switch 2, the signal converter X1, and the playing device 4 are implemented by using a structure in the prior art, and the working principle thereof is also the working principle in the prior art, which is not described here.
Fig. 3 is a schematic circuit diagram of a power module in this embodiment, in fig. 3, the power module 5 includes a voltage input terminal Vin, a first resistor R1, a rectifier bridge Z, a second capacitor C2, a first inductor L1, a second inductor L2, a third capacitor C3, a first diode D1, a three-terminal regulator U1, a fourth capacitor C4, a second resistor R2, a second diode D2, a third diode D3, a first transistor Q1, a battery E, and a third resistor R3, the voltage input terminal Vin is connected to an ac input terminal of the rectifier bridge Z through a first resistor R1, the other terminal of the voltage input terminal Vin is connected to another ac input terminal Vin of the rectifier bridge Z, one dc output terminal of the rectifier bridge Z is connected to one terminal of the second capacitor C2 and one terminal of the first inductor L1, the other terminal of the first inductor L6 is connected to a first pin of the three-terminal U1, the other terminal of the rectifier bridge Z is connected to one terminal of the second capacitor C6327 and one terminal of the second inductor L73729, a second pin of the three-terminal regulator U1 is connected to one end of a fourth capacitor C4, one end of a second resistor R2 and an anode of a second diode D2, a third lead angle of the three-terminal regulator U1 is connected to an anode of a first diode D1, a cathode of a second diode D2, a cathode of a third diode D3 and one end of a third resistor R3, a cathode of a first diode D1 is connected to one end of a third capacitor C3, a collector of a first triode Q1 is connected to an anode of a third diode D3, an emitter of the first triode Q1 is connected to an anode of the battery E, a base of the first triode Q1 is connected to the other end of the third resistor R3, and the other end of a second inductor L2 is connected to the other end of the third capacitor C3, the other end of the fourth capacitor C4, the other end of the second resistor R2 and a cathode of the battery E, respectively.
Compared with the power supply part of the traditional intelligent household audio-visual system in the figure 1, the power supply module 5 has the advantages that the used components are fewer, the circuit structure is simpler, the maintenance is convenient, and the hardware cost can be reduced due to the fact that some components are saved. In addition, the third diode D3 is a current limiting diode for current limiting protection of the collector current of the first transistor Q1. The current limiting protection principle is as follows: when the collector current of the first triode Q1 is large, the third diode D3 can reduce the collector current of the first triode Q1 to keep the first triode Q1 in a normal working state, so that the device in the circuit is not burned out due to too large current, and the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the third diode D3 has a model number E-202. Of course, in practical applications, the third diode D3 may also be another type of diode with the same function.
In this embodiment, the model of the three-terminal regulator U1 is LM 7824.
The working principle of the power module 5 is as follows: the voltage of a 220V mains supply input by a voltage input end Vin enters a rectifier bridge Z and is subjected to filtering treatment to output direct-current voltage, a pi-type filter is formed by a second capacitor C2, a third capacitor C3, a first inductor L1 and a second inductor L2, harmonic interference in a mains supply power grid can be eliminated, a typical three-terminal voltage stabilizing circuit is formed by a three-terminal voltage stabilizer U1, a first diode D1, a second diode D2 and a fourth capacitor C4, stable direct-current voltage is output from a third pin of the three-terminal voltage stabilizer U1 to supply power to a signal converter X1, the base of the first triode Q1 is electrified under normal conditions, the first triode Q1 is not conducted, when the mains supply is powered off, the base voltage of the first triode Q1 disappears, the first triode Q1 is conducted, and the voltage of a storage battery E is applied to the signal converter X1 through the first triode Q1 at the moment to serve as an emergency power supply to ensure uninterrupted work.
In this embodiment, the first transistor Q1 is a PNP transistor. Of course, in practical applications, the first transistor Q1 may also be an NPN transistor, but the circuit structure is also changed accordingly.
In this embodiment, the power module 5 further includes a fourth resistor R4, one end of the fourth resistor R4 is connected to the cathode of the second diode D2, and the other end of the fourth resistor R4 is connected to the cathode of the third diode D3. The fourth resistor R4 is a current limiting resistor for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the fourth resistor R4 is located is large, the current of the branch where the fourth resistor R4 is located can be reduced by the fourth resistor R4, so that the branch can be kept in a normal operating state, and the components in the circuit cannot be burned out due to the large current, so that the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the fourth resistor R4 is 36k Ω. Of course, in practical applications, the resistance of the fourth resistor R4 may be increased or decreased according to specific situations.
In a word, in this embodiment, this power module 5 compares with the power supply part of traditional intelligent house audio-visual system, and the components and parts that its used are less, and circuit structure is comparatively simple, and convenient maintenance can reduce the hardware cost like this owing to saved some components and parts. In addition, the power module 5 is provided with a current-limiting diode, so that the safety and the reliability of the circuit are high.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An intelligent home audio-visual system is characterized by comprising a signal source, a network switch, a signal converter, a playing device and a power module, wherein the signal source is connected with the signal converter through the network switch, and the playing device and the power module are both connected with the signal converter;
the power supply module comprises a voltage input end, a first resistor, a rectifier bridge, a second capacitor, a first inductor, a second inductor, a third capacitor, a first diode, a three-terminal voltage stabilizer, a fourth capacitor, a second resistor, a second diode, a third diode, a first triode, a storage battery and a third resistor, wherein the voltage input end is connected with an alternating current input end of the rectifier bridge through the first resistor, the other end of the voltage input end is connected with another alternating current input end of the rectifier bridge, a direct current output end of the rectifier bridge is respectively connected with one end of the second capacitor and one end of the first inductor, the other end of the first inductor is connected with a first pin of the three-terminal voltage stabilizer, another direct current output end of the rectifier bridge is respectively connected with the other end of the second capacitor and one end of the second inductor, and a second pin of the three-terminal voltage stabilizer is respectively connected with one end of the fourth capacitor, One end of the second resistor is connected with the anode of the second diode, a third pin of the three-terminal voltage stabilizer is respectively connected with the anode of the first diode, the cathode of the second diode, the cathode of the third diode and one end of the third resistor, the cathode of the first diode is connected with one end of the third capacitor, a collector of the first triode is connected with the anode of the third diode, an emitter of the first triode is connected with the anode of the storage battery, a base of the first triode is connected with the other end of the third resistor, and the other end of the second inductor is respectively connected with the other end of the third capacitor, the other end of the fourth capacitor, the other end of the second resistor and the cathode of the storage battery.
2. The smart home audio/video system according to claim 1, wherein the third diode is E-202.
3. The audio-visual system of intelligence house of claim 2, characterized in that, power module still includes the fourth resistance, the one end of fourth resistance with the negative pole of second diode is connected, the other end of fourth resistance with the negative pole of third diode is connected.
4. The smart home audio/video system according to claim 3, wherein the fourth resistor has a resistance of 36k Ω.
5. The smart home audio/video system according to any one of claims 1 to 4, wherein the first triode is a PNP triode.
6. The smart home audio/video system according to any one of claims 1 to 4, wherein the three-terminal regulator is LM 7824.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642545.3U CN212518827U (en) | 2020-04-24 | 2020-04-24 | Intelligent household audio-video system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642545.3U CN212518827U (en) | 2020-04-24 | 2020-04-24 | Intelligent household audio-video system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212518827U true CN212518827U (en) | 2021-02-09 |
Family
ID=74435994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020642545.3U Expired - Fee Related CN212518827U (en) | 2020-04-24 | 2020-04-24 | Intelligent household audio-video system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212518827U (en) |
-
2020
- 2020-04-24 CN CN202020642545.3U patent/CN212518827U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107528375A (en) | A kind of accumulator charging and discharging state intelligent monitor system | |
| US20210405600A1 (en) | Switch circuit and control method thereof, smart switch and control system | |
| CN212518827U (en) | Intelligent household audio-video system | |
| CN210927209U (en) | Intelligent doorbell power supply circuit | |
| CN205545154U (en) | Power amplifier circuit | |
| CN201690250U (en) | Double-cell electric-supplying device | |
| CN203135735U (en) | Continuous current plant | |
| CN108900948A (en) | Intelligent wireless speaker | |
| CN212516062U (en) | Intelligent home security system | |
| CN108153361A (en) | A kind of DC-stabilized circuit | |
| CN107132830A (en) | A kind of high intelligent home control system of compatibility | |
| CN201430531Y (en) | Voltage stabilizing circuit and TV set with same | |
| CN207766525U (en) | Sound equipment with power supply protection function | |
| CN211826266U (en) | Surge tester | |
| CN111711188A (en) | Energy-saving power distribution device | |
| CN214100957U (en) | Voltage bidirectional protection power supply switching circuit | |
| CN220711122U (en) | Full-direct-current guest room control box | |
| CN203522557U (en) | Voltage reducing circuit and electronic device | |
| CN204350071U (en) | A kind of mobile phone earphone interface power-supply circuit | |
| CN210166637U (en) | Electrical system of vehicle bottom electrical cabinet installation equipment | |
| CN209824242U (en) | Novel energy-saving server | |
| CN209074092U (en) | Intelligent curtain control system | |
| CN209330156U (en) | A kind of novel energy-conserving interchanger | |
| CN217741561U (en) | Inverter power supply | |
| CN217880464U (en) | Doorbell with alarming function |
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: 20210209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |