CN209216185U - A kind of outdoor unit of efficient offer unlocking voltage - Google Patents
A kind of outdoor unit of efficient offer unlocking voltage Download PDFInfo
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- CN209216185U CN209216185U CN201920148056.XU CN201920148056U CN209216185U CN 209216185 U CN209216185 U CN 209216185U CN 201920148056 U CN201920148056 U CN 201920148056U CN 209216185 U CN209216185 U CN 209216185U
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Abstract
The utility model provides a kind of outdoor unit of efficiently offer unlocking voltage, including unlocking control circuit, electric lockset and storage circuit, electric lockset is electrically connected with storage circuit and unlocking control circuit respectively, storage circuit includes voltage input end VIN, 555 timer U1, diode D3, diode D4, capacitor C2, capacitor C3 and voltage output end OUT, voltage input end VIN is electrically connected with the power pins of 555 timer U1, the voltage output pin of 555 timer U1 is electrically connected with the first end of diode D3, the second end of diode D3 is electrically connected with voltage output end OUT, the first end of capacitor C2 is electrically connected with voltage output end OUT, the first end of capacitor C3 is electrically connected with voltage output end OUT, the second of the second end of capacitor C2 and capacitor C3 End ground connection.The utility model has the characteristics that efficiently to provide unlocking voltage.
Description
Technical field
The utility model relates to indoor unit gate inhibition fields, are specifically related to a kind of outdoor unit of efficiently offer unlocking voltage.
Background technique
With the development of indoor unit access control system, more and more people use indoor unit access control system, under normal circumstances, visit
After visitor sends call signal to indoor unit by the call button on outdoor unit in indoor unit access control system, indoor unit, which receives, is exhaled
It crying and sends unlocking signal to outdoor unit after signal, control electric lockset executes unlocking action after outdoor unit receives unlocking signal,
But outdoor unit control electric lockset execute unlocking action during, due to outdoor unit be directly powered by indoor unit, but
It is that electric lockset needs individual 12V DC power voltage supply just to can be carried out work, there are the operating voltages that electron lockset provides
Insufficient situation, causes outdoor unit that can not quickly execute unlocking action.
Summary of the invention
One purpose of the utility model is to provide a kind of outdoor unit of efficiently offer unlocking voltage.
To achieve the goals above, outdoor unit provided by the utility model include unlocking control circuit, electric lockset and
Storage circuit, the voltage of storage circuit receiving interface circuit input, electric lockset are electric with storage circuit and control of unlocking respectively
Road electrical connection, storage circuit includes voltage input end VIN, 555 timer U1, diode D3, diode D4, capacitor C2, capacitor
C3 and voltage output end OUT, voltage input end VIN are electrically connected with the power pins of 555 timer U1,555 timer U1's
Voltage output pin is electrically connected with the first end of diode D3, and the second end of diode D3 is electrically connected with voltage output end OUT, electricity
The first end for holding C2 is electrically connected with voltage output end OUT, and the first end of capacitor C3 is electrically connected with voltage output end OUT, capacitor C2
Second end and capacitor C3 second end ground connection.
By above scheme as it can be seen that this programme provides positive voltage by storage circuit electron lockset, unlocking control circuit is connect
Electron lockset provides negative voltage after receiving the unlocking signal of call circuit transmission, so that electric lockset executes unlocking action, energy
Enough electron locksets provide enough unlocking voltage, achieve the purpose that quick response unlocking signal.
Further embodiment is that outdoor unit includes call circuit, interface circuit, camera and display, interface circuit
To storage circuit input voltage, call circuit sends unlocking signal, interface circuit and audio frequency processing circuit to unlocking control circuit
Electrical connection, interface circuit receive the call signal that call circuit is sent and outdoor audio signal, and interface circuit is sent out to call circuit
Indoor audio signal is sent, interface circuit receives the life outdoor videos signal that camera is sent, and interface circuit is into display dispatcher's office
Vision signal.
As it can be seen that sending calling letter to indoor unit after the call circuit in this programme can receive the call request of visitor
Number, achieve the purpose that fast implement and sends and receivees indoor audio signal and outdoor audio signal.
Further embodiment is that outdoor unit includes unlocking control circuit, electric lockset and storage circuit, control electricity of unlocking
Road receive call circuit send unlocking signal, storage circuit receiving interface circuit input voltage, electric lockset respectively with storage
Circuit and the electrical connection of unlocking control circuit.
As it can be seen that since the voltage of the power supply 1 in this programme is 5V, and the operating voltage of audio frequency processing circuit and microphone is big
In 5V, audio frequency processing circuit and microphone do not work under normal circumstances, and outdoor voice signal can not be transmitted to by outdoor unit
Indoor unit.Power-supplying circuit and indoor mechatronics in this programme, can receive the voltage of indoor unit offer, indoor unit connects
After receiving the call signal that outdoor unit is sent, indoor unit is given to the voltage of power-supplying circuit input 12V by power-supplying circuit
Audio frequency processing circuit and microphone power, so that audio frequency processing circuit and microphone works, realize and pass the voice signal of visitor
It transports in indoor unit, achievees the purpose that other voice signals is avoided to interfere.
Further embodiment is that outdoor unit includes loudspeaker, and audio frequency processing circuit sends out the indoor audio signal received
Give loudspeaker.
As it can be seen that indoor audio signal is switched to play back for voice signal by loudspeaker.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram for the outdoor unit embodiment for efficiently providing unlocking voltage of the utility model.
Fig. 2 is a kind of circuit of the power-supplying circuit for the outdoor unit embodiment for efficiently providing unlocking voltage of the utility model
Schematic diagram.
Fig. 3 is a kind of circuit theory of the call circuit for the outdoor unit embodiment for efficiently providing unlocking voltage of the utility model
Figure.
Fig. 4 is a kind of circuit theory of the storage circuit for the outdoor unit embodiment for efficiently providing unlocking voltage of the utility model
Figure.
Fig. 5 is a kind of circuit of the unlocking control circuit for the outdoor unit embodiment for efficiently providing unlocking voltage of the utility model
Schematic diagram.
The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to Fig. 1, a kind of outdoor unit for efficiently providing unlocking voltage of the utility model includes audio unit 10, temporary location
20, video unit 30 and unlocking unit 40.
Wherein, the voice signal of visitor is converted to outdoor audio signal and is sent to indoor unit, audio list by audio unit 10
The indoor audio signal received is converted to voice signal and played back by member 10.
Wherein, audio unit 10 includes power supply 1, audio frequency processing circuit 2, microphone 4, loudspeaker 6, power-supplying circuit 8.
Wherein, power supply 1 can be battery, is also possible to receive alternating current and the alternating current of 220V is converted into the electricity of low-voltage DC
Source, power supply 1 are powered to audio frequency processing circuit 2, microphone 4 and loudspeaker 6 respectively.Audio frequency processing circuit 2 respectively with microphone
4, loudspeaker 6 and power-supplying circuit 8 are electrically connected, and audio frequency processing circuit 2 is also electrically connected with call circuit 22.
The chip that audio frequency processing circuit 2 in the present embodiment uses is MC34188 chip, can receive, sends and locate
Manage audio signal.The voice signal that microphone 4 can will acquire is converted to indoor audio signal, and indoor audio signal is sent
To audio frequency processing circuit 2.The indoor audio signal that loudspeaker 6 can send over audio frequency processing circuit 2 is converted to sound letter
Number.
Preferably, outdoor audio signal is sent to call circuit 22 by audio frequency processing circuit 2, and audio frequency processing circuit 2 receives
The indoor audio signal that call circuit 22 is sent.
Voltage by power supply 1 in this present embodiment is 5V, and the operating voltage of audio frequency processing circuit 2 and microphone 4 is big
In 5V, audio frequency processing circuit 2 and microphone 4 do not work under normal circumstances, in this way, outdoor mixed and disorderly voice signal can not pass through room
Outer machine is transmitted to indoor unit.
Power-supplying circuit 8 in the present embodiment can receive the voltage of indoor unit input, visitor by interface circuit 21
After pressing the call button on outdoor unit, indoor unit receives the call signal of the transmission of call circuit 22 by interface circuit 21,
Indoor unit, to the voltage of 8 input voltage of power-supplying circuit such as 12V, is given by interface circuit 21 by power-supplying circuit 8
Audio frequency processing circuit 2 and microphone 4 are powered, so that audio frequency processing circuit 2 and microphone 4 work, are realized and are believed the sound of visitor
It is transmitted in indoor unit after number being converted to outdoor audio signal, achievees the purpose that avoid other mixed and disorderly voice signals interference.
Specifically, as shown in Fig. 2, power-supplying circuit 8 includes voltage input end+V1, diode D1, capacitor C1, resistance
R1, triode Q1, resistance R2, resistance R3, triode Q2, voltage output end VCOM1, voltage input end+V1 respectively with diode
The first end of D1 is electrically connected, and voltage input end+V1 is electrically connected with the emitter of triode Q2, the second end of diode D1 respectively with
The first end of capacitor C1, the electrical connection of the base stage of triode Q1, the first end of resistance R1 are electrically connected with the base stage of triode Q1, resistance
The second end of R1 is electrically connected with the emitter of triode Q1, the second end of capacitor C1 and the emitter ground connection of triode Q1, three poles
The collector of pipe Q1 is electrically connected with the first end of resistance R3, and the second end of resistance R3 is electrically connected with the base stage of triode Q2, three poles
The collector of pipe Q2 is electrically connected with voltage output end VCOM1, and the first end of resistance R2 is electrically connected with the emitter of triode Q2, electricity
The second end of resistance R2 is connect with the collector of triode Q2.Wherein, the electricity that voltage input end+V1 receiving interface circuit 21 inputs
Pressure, voltage output end VCOM1 are electrically connected with audio frequency processing circuit 2.The voltage value of the reverse breakdown of diode D1 in the present embodiment
It is set as 8.2V, and diode D1 is zener diode.
Preferably, the characteristics of triode Q1 in the present embodiment and triode Q2 play quick response voltage signal.This
Capacitor C1 and resistance R1 in embodiment play the role of protecting the emitter of triode Q1.Resistance R2 in the present embodiment rises
The effect of the emitter of protection triode Q2 is arrived.
Power-supplying circuit 8 is in off working state, and triode Q1 is not turned at this time, and triode Q2 is not turned on.
Indoor unit is greater than the electricity of the breakdown reverse voltage of diode D1 by interface circuit 21 to voltage input end+V1 input
Pressure value such as 12V, so that diode D1 reverse breakdown, diode D1 is connected at this time, from diode D1 to the base stage of triode Q1
Putting high level voltage, triode Q1 is connected at this time, and electric current flows through resistance R3 from the collector of triode Q1, generates low level electricity
Pressure is input to the base stage of triode Q2, and the voltage of the emitter of triode Q2 is greater than the voltage of the collector of triode Q2, at this time
Triode Q2 conducting, power-supplying circuit 8 is in running order, and electric current is flowed into voltage output end from the collector of triode Q2
VCOM1, from voltage output end VCOM1 output voltage to audio frequency processing circuit 2, to audio frequency processing circuit 2 provide operating voltage into
Row work.
It can be seen from the above, in the present embodiment, audio frequency processing circuit and microphone do not work under normal circumstances, indoor machine examination
After measuring call signal, indoor unit provides voltage to audio frequency processing circuit and microphone by power-supplying circuit, so that audio
Processing circuit and microphone are started to work, and are sent to indoor unit after the voice signal of visitor is converted to outdoor audio signal, are reached
To the purpose for avoiding other mixed and disorderly voice signal interference.
Temporary location 20 and indoor mechatronics, after visitor presses call button, temporary location 20 sends call signal
To indoor unit, indoor unit is sent indoor audio signal and indoor vision signal by temporary location 20 after receiving call signal
To outdoor unit, outdoor audio signal and life outdoor videos signal are sent to indoor unit by temporary location 20 by outdoor unit, it is seen then that in
Between unit 20 can be realized the signal interaction between outdoor unit and indoor unit, and outdoor unit can also be received by temporary location 20
The voltage of indoor unit input.
Wherein, temporary location 20 includes interface circuit 21 and call circuit 22, and interface circuit 21 is electrically connected with call circuit 22
It connects.
The interface circuit 21 of the present embodiment is provided with audio interface, video interface and power interface, interface circuit 21 and room
Interior mechatronics, interface circuit 21 receive the call signal that call circuit 22 is sent and call signal are sent to indoor unit, connect
Mouth circuit 21 can receive the outdoor audio signal of the transmission of call circuit 22 and receive the life outdoor videos signal that camera 32 is sent,
And outdoor audio signal and life outdoor videos signal are sent to indoor unit, interface circuit 21 can receive the interior of indoor unit transmission
Audio signal and indoor vision signal, are sent to call circuit 22 for indoor audio signal, indoor vision signal are sent to aobvious
Show device 32.Interface circuit 21 can receive the voltage of indoor unit input, and voltage is exported respectively to call circuit 22, electric power storage electricity
Road 42, unlocking control circuit 41, camera 32, display 31, power-supplying circuit 8.
Specifically, as shown in figure 3, call circuit 22 include signal end CTL, voltage input end DC-IN, key switch S1,
Diode D3, signal end LOCK, diode D2, triode D4, resistance R21, triode Q5, resistance R22, signal end AUDIO, letter
Number end CTL be electrically connected with the first end of key switch S1, and the second end of key switch S1 is grounded, signal end CTL and diode D3
First end electrical connection, the second end of diode D3 is electrically connected with signal output end LOCK, the collection of signal end CTL and triode Q5
Electrode electrical connection, the emitter of triode Q5 is electrically connected with signal end AUDIO, and the of voltage input end DC-IN and diode D2
One end electrical connection, the second end of diode D2 are electrically connected with the base stage of triode Q4, the emitter ground connection of triode Q4, triode
The collector of Q4 is electrically connected with the base stage of triode Q5, and the first end of resistance R21 is electrically connected with the base stage of triode Q4, resistance
The second end of R21 is electrically connected with the emitter of triode Q4, and the first end of resistance R22 is electrically connected with the base stage of triode Q5, electricity
The second end of resistance R22 is electrically connected with the emitter of triode Q5.Signal end CTL is electrically connected with interface circuit 21, voltage input end
DC-IN can receive the voltage such as 12V voltage of the input of interface circuit 21, and signal end LOCK is electrically connected with unlocking control circuit 41
It connects, signal end AUDIO is electrically connected with audio frequency processing circuit 2.
Preferably, the key switch S1 of the present embodiment has the characteristics that high sensitivity.The triode Q4 of the present embodiment and three
Pole pipe Q5 has the characteristics that quick corresponding control signal.The resistance R21 of the present embodiment has the work of protection triode Q4 emitter
With resistance R22 has the function of protecting triode Q5 emitter.The breakdown reverse voltage value setting of diode D2 in the present embodiment
It is zener diode for 8.2V, diode D2 and diode D3.
When call circuit 22 is in off working state, triode Q4 is not turned on, and triode Q5 is not turned on, and audio signal can not
It is transmitted between signal end CTL and signal end AUDIO.
After visitor presses the button switch S1, interface circuit 21, interface are sent to by signal end CTL after generation call signal
Call signal is sent to indoor unit again by circuit 21, after indoor unit receives call signal, is inputted to voltage input end DC-IN high
Level voltage such as 12V voltage inputs 12V voltage from voltage input end DC-IN to diode D2, so that diode D2 is reversely hit
It wears, diode D2 is connected at this time, and from diode D2 to the base stage putting high level voltage of triode Q4, triode Q4 is led at this time
It is logical, low level voltage is exported to the base stage of triode Q5 from the collector of triode Q4, and triode Q5 is connected at this time, calls at this time
Circuit 22 is in running order, can pass through audio signal outside audio signal in signal end CTL receiving chamber and dispatcher's office, Neng Goutong
Cross audio signal in the outer audio signal of signal end AUDIO receiving chamber and dispatcher's office.
After user confirms the identity of visitor, unlocking signal is sent to indoor unit, indoor unit is believed by interface circuit 21 from CIL
Number end input unlocking signal, make diode D3 be reversed breakdown from CTL signal end putting high level voltage to diode D3, this
When diode D3 be connected, electric current is flowed into unlocking signal end LOCK from diode D3, and unlocking signal end LOCK output voltage is to being opened
Lock control circuit 41, so that unlocking control circuit 41 is started to work.
It can be seen from the above, being sent out after the call circuit in the present embodiment can receive the call request of visitor to indoor unit
Call signal is sent, achievees the purpose that fast implement and sends and receivees indoor audio signal and outdoor audio signal.
Video unit 30 can obtain the life outdoor videos signal of visitor, and can show indoor vision signal.
Video unit 30 includes camera 32 and display 31, and camera 32 being capable of the outer vision signal of collection room and will be outdoor
Vision signal is sent to interface circuit 21, and display 31 is capable of the indoor vision signal that receiving interface circuit 21 is sent, and by room
Interior vision signal is shown.
Unlocking unit 40 can execute unlocking action after receiving unlocking signal, unlocking unit 40 include storage circuit 42,
Electric lockset 44 and unlocking control circuit 41, wherein storage circuit 42 provides positive voltage to electric lockset 44, control electricity of unlocking
Road 41 provides negative voltage to electric lockset.Wherein, storage circuit 42 can receive indoor unit input by interface circuit 21
After voltage, positive voltage is provided to electric lockset 44 after bringing the voltage up.Unlocking circuit 41 can receive the transmission of call circuit 22
After unlocking signal, to the offer negative voltage of electric lockset.
Specifically, as shown in figure 4, storage circuit 42 includes voltage input end VIN, 555 timer U1, diode D3, two
Pole pipe D4, capacitor C2, capacitor C3 and voltage output end OUT, the power pins Vcc of voltage input end VIN and 555 timer U1
Electrical connection, the voltage output pin Vo of 555 timer U1 is electrically connected with the first end of diode D3, the second end of diode D3 and
Voltage output end OUT electrical connection, the first end of capacitor C2 are electrically connected with voltage output end OUT, the first end and voltage of capacitor C3
Output end OUT electrical connection, the second end of capacitor C2 and the second end ground connection of capacitor C3.Wherein, voltage input end VIN can receive
The voltage that interface circuit 21 inputs, voltage output end OUT provide positive voltage to electric lockset 44, and the power supply of 555 timer U1 draws
The effect of foot Vcc is to receive the input of voltage, and the effect of the voltage output pin Vo of 555 timer U1 is output voltage.
Preferably, the 555 timer U1 of the present embodiment play the role of boosting.The diode D3 of the present embodiment plays anti-
The only effect of electric current adverse current.The capacitor C2 and capacitor C3 of the present embodiment play the role of charge and discharge.
Indoor unit by interface circuit 21 to voltage input end VIN input voltage such as 12V, it is defeated from voltage input end VIN
Enter 12V voltage to start to work to the power pins Vcc of 555 timer U1,555 timer U1, due under normal circumstances, electronic lock
Tool 44 in circuit do not form closed circuit, so voltage output point OUT can not output voltage electron lockset 44, capacitor
C2, capacitor C are in charged state, deposit from the voltage output pin Vo output voltage of 555 timer U1 to capacitor C2 and capacitor C3
Storage, after the circuit in electric lockset 44 forms closed circuit, capacitor C2, capacitor C are in discharge condition, and electric current is respectively from 555
Voltage output pin Vo, capacitor C2, the capacitor C of timer U1 flows into voltage output end OUT, exports from voltage output end OUT high
Level voltage such as 22V voltage electron lockset achievees the purpose that efficiently to provide unlocking voltage to unlocking lockset 44.
As shown in figure 5, unlocking control circuit 41 include signal input part LOCK1, resistance R31, capacitor C4, triode Q6,
Relay RL1, voltage input end CCD, voltage output end NC, voltage output end A, signal input part LOCK1 and triode Q6's
Base stage electrical connection, the base stage of triode Q6 are electrically connected with the first end of the first end of resistance R31, capacitor C4 respectively, resistance R31's
Second end, the second end of capacitor C4, triode Q6 emitter ground connection, the pin of the collector of triode Q6 and relay RL1
10 electrical connections, the pin 2 of relay RL1 are electrically connected with voltage output end A, and relay RL1 is electrically connected with voltage output end A.Its
In, call circuit 22 inputs unlocking signal to signal input part LOCK1, and indoor unit passes through interface circuit 21 to voltage input end
CCD inputs 12V voltage, and voltage output end A provides negative voltage to electric lockset 44.Wherein, the pin 4 and relay of relay RL1
The normally opened contact NO of device RL1 is electrically connected, and the effect of pin 1 of relay RL1 is to receive voltage input, the pin 10 of relay RL1
Effect be output voltage.
The triode Q6 of the present embodiment has the characteristics that quick response unlocking signal.Resistance R31 and electricity in the present embodiment
Holding C4 has the function of protecting the emitter of triode Q6, and the relay RL1 model in the present embodiment is HFD31/12-S_
10PIN, relay RL1 can export negative voltage electron lockset 44 from voltage output end A when working.
When relay RL1 is in off working state, relay normally open contact NO is disconnected, and unlocking control circuit 41 is not to electronics
Lockset 44 exports negative voltage, and triode Q6 is not turned on.
Call circuit 22 to signal input part LOCK1 input unlocking signal, from input terminal LOCK1 output high level voltage to
The base stage of triode Q6, triode Q6 is connected at this time, and from the radiation pole of triode Q6, output negative electricity is pressed onto the pin of relay RL1
10, indoor unit is depressed into the pin 1 of relay by interface circuit 21 from the positive electricity that voltage input end CCD inputs 12V, at this time relay
Device RL1 is in running order, and the normally opened contact NO closure of relay RL1, electric current flows out to voltage output end A from relay RL1,
So that voltage output end A exports negative voltage to electric lockset 44, since positive terminal and the storage circuit 42 of electric lockset 44 are electrically connected
It connects, the negative pole end of electric lockset 44 is electrically connected with unlocking control circuit 41.
When not worked due to unlocking control circuit 41, unlocking control circuit 41 does not provide negative voltage to electric lockset 44, stores
Circuit 42 also provides positive voltage without normal direction electric lockset 44, and electric lockset 44 does not work；When unlocking control circuit 41 works, open
Lock control circuit 41 provides negative voltage to electric lockset 44 and is grounded electric lockset 44 by unlocking control circuit 41, stores
Circuit 42 also provides positive voltage to electric lockset 44, so that forming closed circuit in electric lockset 44, electric lockset 44 starts
Work executes unlocking action.
It can be seen from the above, the present embodiment provides positive voltage by 42 electron lockset of storage circuit, unlocking control circuit is connect
Electron lockset provides negative voltage after receiving the unlocking signal of call circuit transmission, so that electric lockset executes unlocking action, it can
See, the present embodiment efficiently can provide unlocking voltage by electron lockset, achieve the purpose that quick response unlocking signal.
It should be noted that the above is only the preferred embodiment of the utility model, but the design concept of utility model is not
It is confined to this, it is all that insubstantial modifications are made to the utility model using this design, also each fall within the protection model of the utility model
It encloses.
Claims (4)
1. a kind of efficiently provide the outdoor unit of unlocking voltage characterized by comprising
Unlocking control circuit, electric lockset and storage circuit, the electric lockset are controlled with storage circuit and unlocking respectively
Circuit electrical connection；
The storage circuit includes voltage input end VIN, 555 timer U1, diode D3, diode D4, capacitor C2, capacitor C3
And voltage output end OUT, the voltage input end VIN are electrically connected with the power pins of the 555 timer U1, described 555
The voltage output pin of timer U1 is electrically connected with the first end of the diode D3, the second end of the diode D3 with it is described
Voltage output end OUT electrical connection, the first end of the capacitor C2 are electrically connected with the voltage output end OUT, the capacitor C3's
First end is electrically connected with the voltage output end OUT, the second end ground connection of the second end of the capacitor C2 and the capacitor C3.
2. a kind of outdoor unit of efficiently offer unlocking voltage according to claim 1, it is characterised in that:
The outdoor unit includes call circuit, interface circuit, camera and display, and the interface circuit is electric to the electric power storage
Road output voltage, the call circuit send unlocking signal, the interface circuit and audio processing to the unlocking control circuit
Circuit electrical connection, the interface circuit receive the call signal that the call circuit is sent and outdoor audio signal, the interface
Circuit audio signal into the call circuit dispatcher's office；
The interface circuit receives the life outdoor videos signal that the camera is sent, and the interface circuit is sent to the display
Indoor vision signal.
3. a kind of outdoor unit of efficiently offer unlocking voltage according to claim 1 or 2, it is characterised in that:
The outdoor unit includes audio frequency processing circuit, power supply, microphone, power-supplying circuit, and the power supply is respectively at audio
Circuit, microphone power are managed, the power-supplying circuit is electrically connected with the audio frequency processing circuit, sound described in Mike's wind direction
Audio signal outside frequency processing circuit dispatcher's office.
4. a kind of outdoor unit of efficiently offer unlocking voltage according to claim 3, it is characterised in that:
The outdoor unit includes loudspeaker, and the indoor audio signal received is sent to the loudspeaking by the audio frequency processing circuit
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148056.XU CN209216185U (en) | 2019-01-26 | 2019-01-26 | A kind of outdoor unit of efficient offer unlocking voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148056.XU CN209216185U (en) | 2019-01-26 | 2019-01-26 | A kind of outdoor unit of efficient offer unlocking voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216185U true CN209216185U (en) | 2019-08-06 |
Family
ID=67467617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920148056.XU Active CN209216185U (en) | 2019-01-26 | 2019-01-26 | A kind of outdoor unit of efficient offer unlocking voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209216185U (en) |
-
2019
- 2019-01-26 CN CN201920148056.XU patent/CN209216185U/en active Active
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Address after: 519000 room 501b, building 6, No. 19, Yongtian Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee after: Guangdong Boke Electronic Technology Co.,Ltd. Address before: 519000 room 501b, building 6, No. 19, Yongtian Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee before: ZHUHAI BCOM ELECTRONIC TECHNOLOGY Co.,Ltd. |