CN203364345U - Communication circuit of frequency conversion air conditioner and frequency conversion air conditioner - Google Patents
Communication circuit of frequency conversion air conditioner and frequency conversion air conditioner Download PDFInfo
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- CN203364345U CN203364345U CN201320402145.5U CN201320402145U CN203364345U CN 203364345 U CN203364345 U CN 203364345U CN 201320402145 U CN201320402145 U CN 201320402145U CN 203364345 U CN203364345 U CN 203364345U
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- 238000006243 chemical reaction Methods 0.000 title abstract description 12
- 238000004378 air conditioning Methods 0.000 claims description 69
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Abstract
The utility model discloses a communication circuit of a frequency conversion air conditioner and the frequency conversion air conditioner with the communication circuit. The communication circuit of the frequency conversion air conditioner comprises an indoor receiving and transmitting module, an outdoor receiving and transmitting module, an indoor signal line and an outdoor signal line, wherein the indoor receiving and transmitting module is connected with an indoor unit processor, the outdoor receiving and transmitting module is connected with an outdoor unit processor, the indoor signal line is connected with the indoor receiving and transmitting module, and the outdoor signal line is connected with the outdoor receiving and transmitting module. The communication circuit of the frequency conversion air conditioner further comprises a first circuit protection module and a second circuit protection module. When the indoor signal line is connected with a power firing line and the power voltage is in a positive voltage state, the first circuit protection module controls the indoor receiving and transmitting module and the indoor signal line to disconnect; when the power voltage is in a negative voltage state, the first circuit protection module controls a power zero line and the indoor signal line to connect; when the outdoor signal line is connected with the power firing line, the second circuit protection module controls the outdoor signal line and the power zero line to connect.
Description
Technical field
The utility model relates to the air-conditioner technical field, relates in particular to a kind of telecommunication circuit and transducer air conditioning of transducer air conditioning.
Background technology
Existing transducer air conditioning, need to guarantee by telecommunication circuit the normal operation of indoor set and off-premises station.Telecommunication circuit is passed through photo-coupler, the signal that indoor set/the off-premises station processor is assigned is carried out to opto-electronic conversion, then by holding wire, carry out electric signal transmission, then pass through photo-coupler, the signal of telecommunication is carried out to opto-electronic conversion, and off-premises station/indoor set processor receives signal and is processed.But, in the installation and maintenance process of air-conditioner, if by the holding wire misconnection in power line and telecommunication circuit, will easily cause the components and parts in telecommunication circuit to burn out, particularly the photo-coupler in circuit.
The utility model content
Main purpose of the present utility model is to provide a kind of telecommunication circuit of transducer air conditioning, is intended to prevent components and parts in circuit (photo-coupler etc., lower with) in the situation that indoor signal line or outdoor signal line and power firestreak misconnection burn out.
The utility model provides a kind of telecommunication circuit of transducer air conditioning, comprises the indoor transceiver module be connected with the indoor set processor, the outdoor transceiver module be connected with the off-premises station processor, the indoor signal line be connected with described indoor transceiver module and the outdoor signal line be connected with described outdoor transceiver module; The telecommunication circuit of described transducer air conditioning also comprises the first circuit protection module and second circuit protection module; When the indoor signal line is connected with power firestreak, and supply voltage is when the positive voltage state, the indoor transceiver module of the first circuit protection module controls and indoor signal line disconnect, when supply voltage, during in the negative voltage state, the first circuit protection module controls zero-power line is connected with described indoor signal line; When the outdoor signal line is connected with power firestreak, second circuit protection module control room external signal line is connected with zero-power line.
Preferably; described the first circuit protection module comprises the first diode and the second diode; the anode of described the first diode is connected with described indoor transceiver module; the negative electrode of the first diode is connected with the indoor signal line; the anode of described the second diode is connected with zero-power line, and the negative electrode of the second diode is connected with the negative electrode of the first diode.
Preferably, described second circuit protection module comprises the first Zener diode, and the anode of described the first Zener diode is connected with zero-power line, and the negative electrode of the first Zener diode is connected with the outdoor signal line.
Preferably, the telecommunication circuit of this transducer air conditioning also is included as the power transfer module of indoor transceiver module power supply, and the power input of described power transfer module is connected with power supply, and output is connected with described indoor transceiver module.
Preferably, described indoor transceiver module comprises the first photo-coupler, the second photo-coupler and the first resistance, the anode of described the first photo-coupler is connected with the indoor set processor, the minus earth of the first photo-coupler, the anodic bonding of the emitter stage of the first photo-coupler and described the first diode, the colelctor electrode of the first photo-coupler is connected with the negative electrode of described the second photo-coupler; The anode of described the second photo-coupler is connected with the output of described power transfer module, and the emitter stage of the second photo-coupler is connected with the indoor set processor, and the colelctor electrode of the second photo-coupler is connected with external dc power; The anodic bonding of described the first resistance one end and the second photo-coupler, the first resistance other end is connected with the negative electrode of the second photo-coupler.
Preferably, described outdoor transceiver module comprises the 3rd photo-coupler, the 4th photo-coupler and the second resistance, the emitter stage of described the 3rd photo-coupler is connected with the off-premises station processor, the colelctor electrode of the 3rd photo-coupler is connected with external dc power, the negative electrode of the 3rd photo-coupler is connected with zero-power line, and the anode of the 3rd photo-coupler is connected with the emitter stage of described the 4th photo-coupler; The anode of described the 4th photo-coupler is connected with the off-premises station processor, the minus earth of the 4th photo-coupler, and the colelctor electrode of the 4th photo-coupler is connected with described outdoor signal line; One end of described the second resistance is connected with the negative electrode of the 3rd photo-coupler, the anodic bonding of the other end of the second resistance and the 3rd photo-coupler.
Preferably, described power transfer module comprises the 3rd resistance, the 4th resistance, the second Zener diode, the 3rd diode, the first electric capacity and the second electric capacity, the anode of described the 3rd diode is connected with an end of the 3rd resistance, the negative electrode of the 3rd diode is connected with the negative electrode of the second Zener diode, the anode of described the second Zener diode is connected with zero-power line, described the first electric capacity is in parallel with the second Zener diode, described the 4th resistance is in parallel with the second Zener diode, the positive pole of described the second electric capacity is connected with the negative electrode of the second Zener diode, the negative pole of the second electric capacity is connected with zero-power line, the other end of described the 3rd resistance is connected with power firestreak, the negative electrode of described the second Zener diode is connected with output.
Preferably, the telecommunication circuit of this transducer air conditioning also comprises the 4th diode disturbed for suppressing reverse impulse, and its anode is connected with described the first Zener diode, and its negative electrode is connected with the colelctor electrode of described the 4th photo-coupler.
The utility model also provides a kind of transducer air conditioning, this transducer air conditioning comprises the telecommunication circuit of transducer air conditioning, and the telecommunication circuit of this transducer air conditioning comprises the indoor transceiver module be connected with the indoor set processor, the outdoor transceiver module be connected with the off-premises station processor, the indoor signal line be connected with described indoor transceiver module and the outdoor signal line be connected with described outdoor transceiver module; The telecommunication circuit of described transducer air conditioning also comprises the first circuit protection module and second circuit protection module; When the indoor signal line is connected with power firestreak, and supply voltage is when the positive voltage state, the indoor transceiver module of the first circuit protection module controls and indoor signal line disconnect, when supply voltage, during in the negative voltage state, the first circuit protection module controls zero-power line is connected with described indoor signal line; When the outdoor signal line is connected with power firestreak, second circuit protection module control room external signal line is connected with zero-power line.
The utility model has been realized the order access communications of indoor set processor transmission loop and has transferred to the off-premises station processor by indoor transceiver module, or received the signal of off-premises station processor feedback and send to the indoor set processor.Outdoor transceiver module also transfers to the indoor set processor by the signal access communications of off-premises station processor feedback transmission loop, or accepts the order that the indoor set processor assigns and send to the off-premises station processor.Simultaneously, access the first circuit protection module and second circuit protection module in the telecommunication circuit of transducer air conditioning.When the indoor signal line is connected with power firestreak, and supply voltage is when the positive voltage state, and the indoor transceiver module of the first circuit protection module controls and indoor signal line disconnect.When supply voltage, during in the negative voltage state, the first circuit protection module controls zero-power line is connected with described indoor signal line.When the outdoor signal line is connected with power firestreak, second circuit protection module control room external signal line is connected with zero-power line.The telecommunication circuit of the transducer air conditioning that therefore the utility model provides has effectively prevented components and parts in the circuit in the situation that indoor signal line or outdoor signal line and power firestreak misconnection burn out, thereby has improved the stability of circuit, more is suitable for people's use.
The accompanying drawing explanation
The structural representation of telecommunication circuit one embodiment that Fig. 1 is the utility model transducer air conditioning.
The realization of the utility model purpose, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, with regard to the technical solution of the utility model, be described further.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of telecommunication circuit of transducer air conditioning.
With reference to Fig. 1, the structural representation of telecommunication circuit one embodiment that Fig. 1 is the utility model transducer air conditioning.The telecommunication circuit of the transducer air conditioning that the present embodiment provides, comprise the indoor transceiver module 1 be connected with the indoor set processor, the outdoor transceiver module 2 be connected with the off-premises station processor, the indoor signal line L1 be connected with indoor transceiver module 1 and the outdoor signal line L2 be connected with outdoor transceiver module 2.The telecommunication circuit of this transducer air conditioning also comprises the first circuit protection module 3 and second circuit protection module 4.When the indoor signal line, L1 is connected with power firestreak; and supply voltage is when the positive voltage state; in the first circuit protection module 3 control rooms, transceiver module 1 disconnects with indoor signal line L1; when supply voltage, during in the negative voltage state, the first circuit protection module 3 is controlled zero-power lines and is connected with described indoor signal line L1.When outdoor signal line L2 is connected with power firestreak, second circuit protection module 4 control room external signal line L2 are connected with zero-power line.
The telecommunication circuit that it should be noted that this transducer air conditioning is mainly used in transducer air conditioning, and those skilled in the art are when knowing, transducer air conditioning comprises indoor set processor and off-premises station processor.Indoor transceiver module 1 is connected with the indoor set processor, and the main order access communications of being responsible for the indoor set processor is assigned transmits loop, or the signal of off-premises station processor feedback is received and send to the indoor set processor.In like manner, outdoor transceiver module 2 is connected with the off-premises station processor, and the signal that assign in the mainly responsible transmission of the signal access communications by off-premises station processor feedback loop, or reception indoor set processor is also sent to the off-premises station processor.
Further illustrate, the indoor pusher side of the telecommunication circuit of transducer air conditioning comprises the indoor power supply live wire IN1_L be connected with power firestreak, the indoor power supply zero line IN1_N be connected with zero-power line and indoor signal line L1, and the outdoor pusher side of the telecommunication circuit of transducer air conditioning comprises outdoor power live wire IN2_L, outdoor power zero line IN2_N and outdoor signal line L2.The normal wiring of the telecommunication circuit of transducer air conditioning is that indoor power supply live wire IN1_L is connected with outdoor power live wire IN2_L, indoor power supply zero line IN1_N is connected with outdoor power zero line IN2_N, indoor signal line L1 is connected with outdoor signal line L2, realizes the normal operation of the telecommunication circuit of whole transducer air conditioning.The telecommunication circuit of transducer air conditioning occurs that wiring comprises two kinds of situations extremely, situation one: indoor signal line L1 and indoor power supply live wire IN1_L misconnection, make indoor signal line L1 be connected with power firestreak, thereby make the alternating current 220V power supply directly act on indoor transceiver module 1, cause the components and parts in indoor transceiver module 1 to damage.Situation two: outdoor signal line L2 and indoor power supply live wire IN1_L misconnection, make outdoor signal line L2 be connected with power firestreak, thereby make the alternating current 220V power supply directly act on outdoor transceiver module 2, cause the components and parts in outdoor transceiver module 2 to damage.This circuit is with the function of self-shield, and when the telecommunication circuit of transducer air conditioning occurs that wiring is abnormal, the circuit start self-shield, guaranteed that the components and parts in the modules are not burned effectively.
In the present embodiment, by indoor signal line L1, with outdoor signal line L2, be connected, realized being connected of indoor transceiver module 1 and outdoor transceiver module 2.The telecommunication circuit that is applied to the transducer air conditioning in transducer air conditioning that the present embodiment provides is had any different in prior art, and its main distinguishing characteristics is, the telecommunication circuit of transducer air conditioning has accessed the first circuit protection module 3 and second circuit protection module 4.Above distinguishing characteristics, guaranteed that indoor transceiver module 1 and the components and parts of outdoor transceiver module 2 still are not burned under the telecommunication circuit wiring abnormal conditions of transducer air conditioning effectively.Below the normal wiring of telecommunication circuit of transducer air conditioning and the course of work of abnormal wiring are set forth.
The telecommunication circuit wiring of transducer air conditioning is normal:
The indoor set processor is issued an order to indoor transceiver module 1, and indoor transceiver module 1 transmits loop by the signal access communications, and sends to outdoor transceiver module 2 by indoor signal line L1 and outdoor signal line L2.Outdoor transceiver module 2 passs on the signal received to the off-premises station processor.In like manner, the off-premises station processor is identical with above-mentioned essence to the course of work and the principle of indoor set processor feedback signal, repeats no more herein.
The telecommunication circuit wiring of transducer air conditioning is abnormal:
Indoor signal line L1 and indoor power supply live wire IN1_L misconnection, make indoor signal line L1 be connected with power firestreak, and indoor signal line L1 will be with the AC power of upper 220V.If do not access the first circuit protection module 3 in the telecommunication circuit of transducer air conditioning, the AC power of 220V will directly act on indoor transceiver module 1.It should be noted that the dc source magnitude of voltage for indoor transceiver module 1 normal operation is less than 50V.After misconnection, indoor transceiver module 1 will be likely because voltage or large electric current burn out the components and parts in its module, the telecommunication circuit of damage transducer air conditioning greatly.In the present embodiment, access the first circuit protection module 3 in the telecommunication circuit of transducer air conditioning, for the components and parts that prevent indoor transceiver module 1 in the situation that wiring is abnormal is burned.Wherein, the first circuit protection module 3 comprises three ports, and first end is connected with indoor transceiver module 1, and the second end is connected with indoor signal line L1, and the 3rd end is connected with zero-power line.When alternating current is sinusoidal wave positive half cycle, in the first circuit protection module 3 control rooms, holding wire L1 and indoor transceiver module 1 disconnect, and have avoided the components and parts in indoor transceiver module 1 to be burnt out by large voltage or large electric current.When AC power is sinusoidal wave negative half period; in the first circuit protection module 3 control rooms, holding wire L1 is connected with zero-power line; indoor signal line L1, the first circuit protection module 3 form loop with zero-power line; the indoor transceiver module 1 of the first 3 pairs of circuit protection modules has played short-circuit protection, avoids large electric current to burn out the components and parts in indoor transceiver module 1.
Outdoor signal line L2 and indoor power supply live wire IN1_L misconnection, make outdoor signal line L2 be connected with power firestreak.Outdoor signal line L2 will be with the AC power of upper 220V.If do not access second circuit protection module 4 in the telecommunication circuit of transducer air conditioning, the AC power of 220V will directly act on outdoor transceiver module 2.Similarly, the operating voltage of outdoor transceiver module 2 normal operations is less than 50V.After misconnection, the AC power of 220V will burn out outdoor transceiver module 2, damage the telecommunication circuit of transducer air conditioning.In the present embodiment, second circuit protection module 4 one ends are connected with outdoor signal line L2, and the other end is connected with zero-power line simultaneously.The electric current of 220V AC power will directly flow to zero-power line from second circuit protection module 4.Thereby avoided the large electric current outdoor transceiver module 2 of flowing through, burnt out the components and parts in outdoor transceiver module 2.
The utility model has been realized the order access communications of indoor set processor transmission loop and has transferred to the off-premises station processor by indoor transceiver module 1, or received the signal of off-premises station processor feedback and send to the indoor set processor.Outdoor transceiver module 2 also transfers to the indoor set processor by the signal access communications of off-premises station processor feedback transmission loop, or receives the order that the indoor set processor assigns and send to the off-premises station processor.Simultaneously, access the first circuit protection module 3 and second circuit protection module 4 in the telecommunication circuit of transducer air conditioning.When the indoor signal line, L1 is connected with power firestreak, and supply voltage is when the positive voltage state, in the first circuit protection module 3 control rooms, transceiver module 1 disconnects with indoor signal line L1, when supply voltage, during in the negative voltage state, the first circuit protection module 3 is controlled zero-power lines and is connected with described indoor signal line L1; When outdoor signal line L2 is connected with power firestreak, second circuit protection module 4 control room external signal line L2 are connected with zero-power line.The telecommunication circuit of the transducer air conditioning that therefore the utility model provides, effectively prevent components and parts in the telecommunication circuit of transducer air conditioning in the situation that indoor signal line L1 or outdoor signal line L2 and power firestreak misconnection burn out, thereby improved the stability of circuit, more be suitable for people and use.
Particularly; the first circuit protection module 3 comprises the first diode D1 and the second diode D2; the anode of this first diode D1 is connected with indoor transceiver module 1; the negative electrode of this first diode D2 is connected with indoor signal line L1; the anode of the second diode D2 is connected with zero-power line, and the negative electrode of the second diode D2 is connected with the negative electrode of the first diode D1.
In the present embodiment, the first circuit protection module 3 comprises the first diode D1 and the second diode D2.When indoor signal line L1 and indoor power supply live wire IN1_L misconnection, indoor signal line L1 is connected with power firestreak and with the AC power of upper 220V.When AC supply voltage, in the positive voltage state, and positive voltage utilizes the characteristic of diode unilateral conduction while being greater than the voltage of the first diode D1 anode, and the first diode D1 will oppositely end, and in disconnection chamber, holding wire L1 and indoor transceiver module 1 is connected.The large voltage of positive half cycle that effectively prevents AC power acts on indoor transceiver module 1, damages the components and parts in this module.When AC power, during in the negative voltage state, the second diode D2 one-way conduction, be connected indoor signal line L1 with zero-power line, prevented that the large voltage of negative half period from acting on indoor transceiver module 1, damages the components and parts in this module.
Particularly, second circuit protection module 4 comprises the first Zener diode ZD1, and the anode of this first Zener diode ZD1 is connected with zero-power line, and the negative electrode of the first Zener diode ZD1 is connected with outdoor signal line L2.
In the present embodiment, second circuit protection module 4 comprises the first Zener diode ZD1.Those skilled in the art are when knowing, when the voltage at Zener diode two ends reaches its breakdown value, Zener diode, by reverse breakdown, allows large electric current to pass through.In the present embodiment, when outdoor signal line L2 and indoor power supply live wire IN1_L misconnection, outdoor signal line L2 directly is connected with power firestreak and with the AC power of upper 220V.When the positive voltage of AC power is greater than the breakdown value of the first Zener diode ZD1, electric current will flow to zero-power line from the first Zener diode ZD1.Effectively protected the components and parts in outdoor transceiver module 2 not burnt out by large electric current.When AC power is negative half period, the first Zener diode ZD1 conducting, electric current will be flowed through the first Zener diode ZD1 to outdoor signal line L2 from zero-power line.Effectively protected the components and parts in outdoor transceiver module 2 not burnt out by large electric current.
Further, the telecommunication circuit of this transducer air conditioning also is included as the power transfer module 5 of indoor transceiver module 1 power supply, and the power input of power transfer module 5 is connected with power supply, and output is connected with indoor transceiver module 1.
In the present embodiment, the AC power of 220V, through power transfer module 5, is indoor transceiver module 1 power supply.This power transfer module 5, by alternating current step-down filter rectification, is converted to dc source.It should be noted that the DC voltage that this power transfer module 5 is exported is less than 50V, concrete voltage swing can be arranged according to actual conditions.
Particularly, indoor transceiver module 1 comprises the first photo-coupler PC1, the second photo-coupler PC2 and the first resistance R 1, the anode of the first photo-coupler PC1 is connected with the indoor set processor, the minus earth of the first photo-coupler PC1, the anodic bonding of the emitter stage of the first photo-coupler PC1 and the first diode D1, the colelctor electrode of the first photo-coupler PC1 is connected with the negative electrode of the second photo-coupler PC2; The anode of the second photo-coupler PC2 is connected with the output of power transfer module 5, and the emitter stage of the second photo-coupler PC2 is connected with the indoor set processor, and the colelctor electrode of the second photo-coupler PC2 is connected with external dc power VCC; The anodic bonding of the first resistance R 1 one ends and the second photo-coupler PC2, first resistance R 1 other end is connected with the negative electrode of the second photo-coupler PC2.
Outdoor transceiver module 2 comprises the 3rd photo-coupler PC3, the 4th photo-coupler PC4 and the second resistance R 2, the emitter stage of the 3rd photo-coupler PC3 is connected with the off-premises station processor, the colelctor electrode of the 3rd photo-coupler PC3 is connected with external dc power VCC, the negative electrode of the 3rd photo-coupler PC3 is connected with zero-power line, and the anode of the 3rd photo-coupler PC3 is connected with the emitter stage of the 4th photo-coupler PC4.The anode of the 4th photo-coupler PC4 is connected with the off-premises station processor, the minus earth of the 4th photo-coupler PC4, and the colelctor electrode of the 4th photo-coupler PC4 is connected with outdoor signal line L2.R2 mono-end of the second resistance is connected with the negative electrode of the 3rd photo-coupler PC3, the anodic bonding of the other end of the second resistance R 2 and the 3rd photo-coupler PC3.
It should be noted that the involved photo-coupler of the technical program is four pins, its input side is light emitting diode, the anode that the anode of light emitting diode is photo-coupler, the negative electrode that the negative electrode of light emitting diode is photo-coupler.The outlet side of photo-coupler is phototriode, and the current collection of phototriode is the colelctor electrode of photo-coupler very, and the emission of phototriode is the emitter stage of photo-coupler very.
In the present embodiment, indoor transceiver module 1 is main is responsible for the signal access communications transmission loop that the indoor set processor is assigned, or receives the signal of off-premises station processor to indoor set processor feedback.Outdoor transceiver module 2 is main to be responsible for the signal access communications transmission loop of off-premises station processor feedback, or receives the signal that the indoor set processor sends to the off-premises station processor.
When the indoor set processor is issued an order to the off-premises station processor, the light emitting diode of the first photo-coupler PC1 input side will be lighted, and the phototriode of outlet side is by conducting, and signal transmits loop by access communications.It should be noted that in outdoor transceiver module 2, the outlet side phototriode of the 4th photo-coupler PC4 remains the state of conducting when the indoor set processor is issued an order to the off-premises station processor.The order that the indoor set processor is assigned is through the first photo-coupler PC1 opto-electronic conversion, access communications transmission loop, and via the outlet side of indoor signal line L1 and outdoor signal line L2 to the four photo-coupler PC4, then deliver to the 3rd photo-coupler PC3 by outlet side.The 3rd photo-coupler PC3 carries out opto-electronic conversion to signal, sends to the off-premises station processor, has realized the function that the indoor set processor is issued an order to the off-premises station processor.
When the off-premises station processor, during to indoor set processor feedback signal, the light emitting diode of the 4th photo-coupler PC4 in outdoor transceiver module 2 will extinguish, and the outlet side phototriode disconnects the juxtaposition low level.Due to the first photo-coupler PC1 outlet side conducting of indoor transceiver module 1, the voltage of its outlet side colelctor electrode will be pulled to low level, and the light emitting diode of the second photo-coupler PC2 is by conducting, and signal, by opto-electronic conversion, is conveyed to the indoor set processor.
Particularly, power transfer module 5 comprises the 3rd resistance R 3, the 4th resistance R 4, the second Zener diode ZD2, the 3rd diode D3, the first capacitor C 1 and the second capacitor C 2, the anode of the 3rd diode D3 is connected with an end of the 3rd resistance R 3, the negative electrode of the 3rd diode D3 is connected with the negative electrode of the second Zener diode ZD2, the anode of the second Zener diode ZD2 is connected with zero-power line, the first capacitor C 1 is in parallel with the second Zener diode ZD2, the 4th resistance R 4 is in parallel with the second Zener diode ZD2, the positive pole of the second capacitor C 2 is connected with the negative electrode of the second Zener diode ZD2, the negative pole of the second capacitor C 2 is connected with zero-power line, the other end of the 3rd resistance R 3 is connected with power firestreak, the negative electrode of the second Zener diode ZD2 is connected with output.
In the present embodiment, 5 pairs of AC powers of power transfer module (220V) are carried out filter rectification, and the dc source obtained is indoor transceiver module 1 power supply.AC power is inputted from input, through the 3rd resistance R 3 and the 4th resistance R 4, flows back to zero-power line.The telecommunication circuit that wherein the 3rd resistance R 3 and the 4th resistance R 4 dividing potential drops the obtain transducer air conditioning required magnitude of voltage that works.The 3rd diode D3 is serially connected with between the 3rd resistance R 3 and the 4th resistance R 4, and AC power is carried out to halfwave rectifier, obtains sinusoidal wave positive half cycle.The first capacitor C 1 plays the effect that stores power supply.Those skilled in the art be when knowing, the positive half cycle of the sine wave after rectification is during through the first capacitor C 1, sinusoidal wave to the first capacitor C 1 charging.After charging, the magnitude of voltage of the first capacitor C 1 is about sinusoidal wave crest value.When sine wave is negative half period, the 3rd diode D3 oppositely dams, and the first capacitor C 1 electric discharge is current conversion module 5 power supplies.Therefore, sine wave is flowed through after the 3rd diode D3 and the first capacitor C 1, obtains the dc source with ripple.With the dc source of ripple, after the second capacitor C 2, the second capacitor C 2 is carried out filtering to it, obtains dc source.Meanwhile the dc source of the second Zener diode ZD2 after to rectifying and wave-filtering carries out voltage stabilizing, finally obtains the galvanic current source.The negative electrode of the second Zener diode ZD2 is connected with output, by output, exports dc source to indoor transceiver module 1.The voltage that it should be noted that this dc source is less than 50V, and the electric current of powering for the telecommunication circuit of transducer air conditioning is less than 50mA.
Further, the telecommunication circuit of this transducer air conditioning also comprises the 4th diode D4 disturbed for suppressing reverse impulse, and its anode is connected with the first Zener diode ZD1, and its negative electrode is connected with the colelctor electrode of the 4th photo-coupler PC4.
In the present embodiment, utilize the characteristic of the 4th diode D4 one-way conduction, effectively prevented the interference of the reverse impulse in the loop.Guaranteed the accuracy of communication loop signal transmission.
The utility model also provides a kind of transducer air conditioning, and this transducer air conditioning comprises the telecommunication circuit of transducer air conditioning, and the structure of the telecommunication circuit of this transducer air conditioning can, with reference to above-described embodiment, not repeat them here.Naturally, because the transducer air conditioning of the present embodiment has adopted the technical scheme of the telecommunication circuit of above-mentioned transducer air conditioning, so this transducer air conditioning has all beneficial effects of telecommunication circuit of above-mentioned transducer air conditioning.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (9)
1. the telecommunication circuit of a transducer air conditioning, comprise the indoor transceiver module be connected with the indoor set processor, the outdoor transceiver module be connected with the off-premises station processor, the indoor signal line be connected with described indoor transceiver module and the outdoor signal line be connected with described outdoor transceiver module; It is characterized in that, the telecommunication circuit of described transducer air conditioning also comprises the first circuit protection module and second circuit protection module; When the indoor signal line is connected with power firestreak, and supply voltage is when the positive voltage state, the indoor transceiver module of the first circuit protection module controls and indoor signal line disconnect, when supply voltage, during in the negative voltage state, the first circuit protection module controls zero-power line is connected with described indoor signal line; When the outdoor signal line is connected with power firestreak, second circuit protection module control room external signal line is connected with zero-power line.
2. the telecommunication circuit of transducer air conditioning as claimed in claim 1; it is characterized in that; described the first circuit protection module comprises the first diode and the second diode; the anode of described the first diode is connected with described indoor transceiver module; the negative electrode of the first diode is connected with the indoor signal line; the anode of described the second diode is connected with zero-power line, and the negative electrode of the second diode is connected with the negative electrode of the first diode.
3. the telecommunication circuit of transducer air conditioning as claimed in claim 2; it is characterized in that; described second circuit protection module comprises the first Zener diode, and the anode of described the first Zener diode is connected with zero-power line, and the negative electrode of the first Zener diode is connected with the outdoor signal line.
4. the telecommunication circuit of transducer air conditioning as claimed in claim 3, is characterized in that, also is included as the power transfer module of indoor transceiver module power supply, and the power input of described power transfer module is connected with power supply, and output is connected with described indoor transceiver module.
5. the telecommunication circuit of transducer air conditioning as claimed in claim 4, it is characterized in that, described indoor transceiver module comprises the first photo-coupler, the second photo-coupler and the first resistance, the anode of described the first photo-coupler is connected with the indoor set processor, the minus earth of the first photo-coupler, the anodic bonding of the emitter stage of the first photo-coupler and described the first diode, the colelctor electrode of the first photo-coupler is connected with the negative electrode of described the second photo-coupler; The anode of described the second photo-coupler is connected with the output of described power transfer module, and the emitter stage of the second photo-coupler is connected with the indoor set processor, and the colelctor electrode of the second photo-coupler is connected with external dc power; The anodic bonding of described the first resistance one end and the second photo-coupler, the first resistance other end is connected with the negative electrode of the second photo-coupler.
6. the telecommunication circuit of transducer air conditioning as claimed in claim 5, it is characterized in that, described outdoor transceiver module comprises the 3rd photo-coupler, the 4th photo-coupler and the second resistance, the emitter stage of described the 3rd photo-coupler is connected with the off-premises station processor, the colelctor electrode of the 3rd photo-coupler is connected with external dc power, the negative electrode of the 3rd photo-coupler is connected with zero-power line, and the anode of the 3rd photo-coupler is connected with the emitter stage of described the 4th photo-coupler; The anode of described the 4th photo-coupler is connected with the off-premises station processor, the minus earth of the 4th photo-coupler, and the colelctor electrode of the 4th photo-coupler is connected with described outdoor signal line; One end of described the second resistance is connected with the negative electrode of the 3rd photo-coupler, the anodic bonding of the other end of the second resistance and the 3rd photo-coupler.
7. the telecommunication circuit of transducer air conditioning as claimed in claim 4, it is characterized in that, described power transfer module comprises the 3rd resistance, the 4th resistance, the second Zener diode, the 3rd diode, the first electric capacity and the second electric capacity, the anode of described the 3rd diode is connected with an end of the 3rd resistance, the negative electrode of the 3rd diode is connected with the negative electrode of the second Zener diode, the anode of described the second Zener diode is connected with zero-power line, described the first electric capacity is in parallel with the second Zener diode, described the 4th resistance is in parallel with the second Zener diode, the positive pole of described the second electric capacity is connected with the negative electrode of the second Zener diode, the negative pole of the second electric capacity is connected with zero-power line, the other end of described the 3rd resistance is connected with power firestreak, the negative electrode of described the second Zener diode is connected with output.
8. the telecommunication circuit of transducer air conditioning as claimed in claim 6, is characterized in that, also comprises the 4th diode disturbed for suppressing reverse impulse, and its anode is connected with described the first Zener diode, and its negative electrode is connected with the colelctor electrode of described the 4th photo-coupler.
9. a transducer air conditioning, comprise indoor set processor, off-premises station processor, it is characterized in that, also comprise the telecommunication circuit as the described transducer air conditioning of claim 1 to 8 any one, described outdoor transceiver module is connected with the off-premises station processor, and described indoor transceiver module is connected with the indoor set processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402145.5U CN203364345U (en) | 2013-07-05 | 2013-07-05 | Communication circuit of frequency conversion air conditioner and frequency conversion air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402145.5U CN203364345U (en) | 2013-07-05 | 2013-07-05 | Communication circuit of frequency conversion air conditioner and frequency conversion air conditioner |
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| CN203364345U true CN203364345U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320402145.5U Expired - Fee Related CN203364345U (en) | 2013-07-05 | 2013-07-05 | Communication circuit of frequency conversion air conditioner and frequency conversion air conditioner |
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| CN (1) | CN203364345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404796A (en) * | 2020-03-25 | 2020-07-10 | 广州华凌制冷设备有限公司 | Communication device, communication assembly and vehicle-mounted air conditioner |
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2013
- 2013-07-05 CN CN201320402145.5U patent/CN203364345U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404796A (en) * | 2020-03-25 | 2020-07-10 | 广州华凌制冷设备有限公司 | Communication device, communication assembly and vehicle-mounted air conditioner |
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