CN203628933U - Air-conditioner - Google Patents
Air-conditioner Download PDFInfo
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- CN203628933U CN203628933U CN201320744274.2U CN201320744274U CN203628933U CN 203628933 U CN203628933 U CN 203628933U CN 201320744274 U CN201320744274 U CN 201320744274U CN 203628933 U CN203628933 U CN 203628933U
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- 238000004378 air conditioning Methods 0.000 description 1
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Abstract
The utility model provides an air-conditioner. The air-conditioner can restrain abnormal heating of an impulse current prevention resistor due to idle currents flowing through a capacitor X when an impulse current prevention relay is in short trouble even in the structure that a noise filter including the capacitor X is arranged on the downstream portion of the impulse current prevention resistor, and restrain impulse currents from flowing towards a smoothing capacitor arranged on the downstream portion of an outdoor rectification part. An outdoor unit (3) is provided with an outdoor relay (11), a first impulse current prevention circuit (60) and a second impulse current prevention circuit (80), wherein the outdoor relay (11) is arranged on the upstream portion of a noise filter (70), the first impulse current prevention circuit (60) is in parallel connection with the outdoor relay and constitutes an impulse current prevention resistor (10) used for restraining impulse currents from flowing towards a capacitor X (71) included in the noise filter, and the second impulse current prevention circuit (80) is arranged between the noise filter and an outdoor rectification part (12) and constitutes a PTC thermistor (81) used for restraining impulse currents from flowing towards a smoothing capacitor (25) arranged on the downward portion of the outdoor rectification part.
Description
Technical field
The utility model relates to air conditioner.
Background technology
As the technology of stand-by electric that reduces the air conditioner that indoor set and off-premises station be connected by the inside and outside connecting line of three cores with power line, bridging line and holding wire, disclose following technology: start off-premises station according to start requirement for the running of indoor set, be arranged in the running of off-premises station by short circuit to the outdoor relay (relay) of off-premises station internal feed power supply, in running standby, this outdoor relay disconnects, and reduces thus the stand-by electric (for example patent documentation 1) of off-premises station.In this patent documentation 1, in the mode in parallel with outdoor relay, dash current is prevented to relay and dash current prevent that resistance is connected in series, prevent that relay from connecting (short circuit) making outdoor relay connect (on: short circuit) front dash current that makes, while suppressing to connect outdoor relay thus, flow to the upstream of inverter (inverter) circuit of the compressor motor (motor) that drives off-premises station, the alternating current of supplying with from source power supply carried out to the dash current of the smmothing capacitor (capacitor) that the downstream of the outdoor rectification part of rectification possesses.
Patent documentation 1: TOHKEMY 2010-243051 communique
When the alternate noise filter (noise filter) that is provided with the function with inhibition conducted noise (noise) etc. of source power supply that is inputing to off-premises station, in order to utilize the included X capacitor of noise filter (across the line capacitor) to be breaking at standby mobile idle current of when running, preferably above-mentioned dash current of the prior art prevent relay, dash current prevent resistance and outdoor relay configuration in the upstream of noise filter, i.e. the input side of source power supply.But, in above-mentioned prior art, in the case of dash current being prevented to relay and dash current prevent that resistance is arranged at than X capacitor by the position of source power supply side, there are the following problems: for example, in the situation that dash current prevents relay short trouble, the idle current that flows through X capacitor flows through all the time dash current and prevents resistance, may cause dash current to prevent resistance abnormal heating.
On the other hand, if this dash current prevents that the resistance value of resistance is little, cannot suppress dash current and flow to the smmothing capacitor possessing in the downstream of outdoor rectification part.Herein, although consider to replace dash current to prevent resistance and use resistance value according to the PTC thermistor (thermistor) of the size of flow through electric current and variations in temperature, but at the electric capacity of X capacitor large and flow through the idle current of PCT thermistor large or environment temperature high, there are the following problems: cannot solve above-mentioned problem, have the possibility of connecting (open) because of heating in the moment beyong contemplation.
Utility model content
The utility model In view of the foregoing completes, its object is to provide a kind of air conditioner, even if prevent that at dash current the downstream of resistance from possessing the structure of the noise filter that comprises X capacitor, also can in the time that dash current prevents relay short trouble, suppress to prevent the abnormal heating of resistance because flowing through the dash current that the idle current of X capacitor causes, and can suppress the smmothing capacitor that downstream that dash current flows to outdoor rectification part possesses.
In order to solve above-mentioned problem, reach object, the related air conditioner of the utility model possesses indoor set and off-premises station, above-mentioned indoor set is connected by three heart yearns with power line, bridging line and holding wire with above-mentioned off-premises station, and the source power supply that utilization is supplied with to the either party in above-mentioned off-premises station or above-mentioned indoor set is via said power and bridging line power supply, above-mentioned air conditioner is characterised in that, above-mentioned off-premises station possesses: noise filter, and this noise filter comprises the alternate X capacitor that is connected to above-mentioned source power supply; Outdoor rectification part, this outdoor rectification part is carried out rectification to above-mentioned source power supply; Smmothing capacitor, this smmothing capacitor is connected in the output of above-mentioned outdoor rectification part, and the output of outdoor rectification part is carried out to smoothing; Outdoor relay, this outdoor relay is arranged at the upstream of above-mentioned noise filter, and one end is connected in above-mentioned source power supply, and the other end is connected in the input of noise filter; The first dash current prevents circuit, and this first dash current prevents that circuit is configured to and comprises that the dash current of dash current that suppresses to flow to above-mentioned X capacitor prevents resistance, and is connected in parallel with above-mentioned outdoor relay; And second dash current prevent circuit, this second dash current prevents that circuit is arranged between above-mentioned noise filter and above-mentioned outdoor rectification part, be configured to and comprise the PTC thermistor that suppresses the dash current that flows to above-mentioned smmothing capacitor, this second dash current prevents that one end of circuit is connected in the output of above-mentioned noise filter, and the other end is connected in the input of above-mentioned outdoor rectification part.
According to the utility model, can obtain following effect: even if prevent that at dash current the downstream of resistance from possessing the structure of the noise filter that comprises X capacitor, also can in the time that preventing relay short trouble, suppress dash current to prevent because flowing through dash current that the idle current of X capacitor causes the abnormal heating of resistance, and can suppress the smmothing capacitor that downstream that dash current flows to outdoor rectification part possesses, can construct the higher system of security (system).
Brief description of the drawings
Fig. 1 is the figure that an example of the electrical systematic drawing of the related air conditioner of embodiment is shown.
Fig. 2 is the action flow chart (flowchart) of the indoor set of the related air conditioner of embodiment.
Fig. 3 is the action flow chart of the off-premises station of the related air conditioner of embodiment.
Fig. 4 is the figure that an example of the electrical systematic drawing different from Fig. 1 of the related air conditioner of embodiment is shown.
Label declaration
1: air conditioner; 2: indoor set; 3: off-premises station; 4: indoor rectification part; 5: indoor control part; 6: indoor communications circuit part; 7: source power supply; 8: power line; 9: power supply signal bridging line (bridging line); 10: dash current prevents resistance; 11: outdoor relay; 12: outdoor rectification part; 13: telecommunication circuit power supply unit; 14: outdoor communication circuit part; 15: outdoor control part; 16: holding wire; 17: remote controller; 18: acceptance division; 19: dash current prevents relay; 20: dash current prevents relay coil; 21: power supply is supplied with block system relay; 22: outdoor starting relay; 23: inverter loop (circuit downstream of smmothing capacitor 25); 24: outdoor power supply line; 25: smmothing capacitor; 26: electric means data portion; 27: indoor power supply relay; 30: indoor terminal board; 31: outdoor terminal board; Within 60: the first, dash current prevents circuit; 70: noise filter; 71:X capacitor (across the line capacitor); Within 80: the second, dash current prevents circuit; 81:PTC thermistor; 82: switch element.
Detailed description of the invention
Below, with reference to accompanying drawing, the related air conditioner of embodiment of the present utility model is described.In addition, the utility model is not limited to embodiment shown below.
Embodiment
Fig. 1 is the figure that an example of the electrical systematic drawing of the related air conditioner of embodiment is shown.As shown in Figure 1, the air conditioner 1 in present embodiment possesses indoor set 2 and off-premises station 3.In addition, in the example shown in Fig. 1, the distribution example of the outdoor electric means that electric power that off-premises station 3 is accepted supplies with to indoor set 2 is shown.
Indoor set 2 possesses indoor terminal board 30, and indoor terminal board 30 has terminal S1, S2, S3.
Off-premises station 3 possesses outdoor terminal board 31, and outdoor terminal board 31 has terminal L, N, S1, S2, S3.
Indoor set 2 and off-premises station 3 connect by three heart yearns with power line 8, power supply signal bridging line (bridging line 9) and holding wire 16.
Terminal L, N at the outdoor terminal board 31 of off-premises station 3 are connected with source power supply 7.And the terminal L of outdoor terminal board 31 is connected with the terminal S1 of outdoor terminal board 31.And the terminal N of outdoor terminal board 31 is connected with the terminal S2 of outdoor terminal board 31.Thus, the electric power from source power supply 7 of terminal L, N that is supplied to outdoor terminal board 31 is from terminal S1, the S2 of outdoor terminal board 31 via power line 8 and power supply signal bridging line 9 and supplied with by terminal S1, the S2 of the indoor terminal board 30 to indoor set 2.
Indoor set 2 possesses indoor rectification part 4, indoor control part 5, indoor communications circuit part 6, acceptance division 18, outdoor starting relay 22, outdoor power supply line (line) 24 and electric means data (date) portion 26.
Indoor communications circuit part 6 is connected in terminal S2, the S3 of indoor terminal board 30.Indoor communications circuit part 6 is via the 14(of the outdoor communication circuit part aftermentioned of holding wire 16 and power supply signal bridging line 9 and off-premises station 3) between communicate.
Electric means data portion 26 is connected with indoor control part 5.Electric means data portion 26 for example forms by storage device or by the switch unit of jumping the realizations such as (jumper) line, switch (switch).Store the information of the indoor electric means of identification and outdoor electric means in this electric means data portion 26.
And, store in electric means data portion 26 whether the off-premises station 3 that identification is connected in indoor set 2 is to have outdoor relay 11(aftermentioned) and dash current prevent relay 19(aftermentioned), the information (hereinafter referred to as " stand-by electric corresponding informance ") of the off-premises station 3 of stand-by electric can cut down running standby time.The details of this stand-by electric corresponding informance will be narrated in the back.
One end of outdoor power supply line 24 is connected in the terminal S1 of indoor terminal board 30, and the other end is connected in outdoor starting relay 22.
Terminal S3 and the indoor communications circuit part 6 of this indoor starting relay 22 junction chamber inner terminal platform 30 in the time of normality, and according to the action from indoor control part 5, disconnected and terminal S3 and the outdoor power supply line 24 of junction chamber inner terminal platform 30 being connected between the terminal S3 of indoor terminal board 30 and indoor communications circuit part 6.
In addition, although also not shown, at indoor set 2, be provided with indoor heat converter, indoor fan (fan), sensor (sensor), display unit etc. as mechanical system.
Off-premises station 3 possesses: noise filter 70, and this noise filter 70 comprises the alternate X capacitor 71 that is connected to source power supply 7; Outdoor rectification part 12, this outdoor rectification part 12 is carried out rectification to source power supply 7; Smmothing capacitor 25, this smmothing capacitor 25 is connected in the output of outdoor rectification part 12, and the output of outdoor rectification part 12 is carried out to smoothing; Outdoor relay 11, this outdoor relay 11 is arranged at the upstream of noise filter 70, and one end is connected in the terminal L of the outdoor terminal board 31 that source power supply 7 is transfused to, and the other end is connected in the input of noise filter 70; The first dash current prevents circuit 60, and this first dash current prevents that circuit 60 is configured to and comprises that the dash current of dash current that suppresses to flow to X capacitor 71 prevents resistance 10, and is connected in parallel with outdoor relay 11; And second dash current prevent circuit 80, this second dash current prevents that circuit 80 is arranged between noise filter 70 and outdoor rectification part 12, be configured to and comprise the PTC thermistor 81 that suppresses the dash current that flows to smmothing capacitor 25, this second dash current prevents that one end of circuit 80 is connected in the output of noise filter 70, and the other end is connected in the input of outdoor rectification part 12.
The first dash current prevents that circuit 60 is configured to and comprises that dash current prevents resistance 10 and prevents that with this dash current the dash current that resistance 10 is connected in series from preventing relay 19.In the present embodiment, this first dash current prevents that circuit 60 from suppressing to flow to the dash current of the included X capacitor 71 of noise filter 70.
Dash current prevents that relay 19 contact in the time of normality from disconnecting (often opening), the closing of contact in the time that dash current prevents that relay coil (relay coil) 20 is energized, and impact electric current prevents from carrying out short circuit between resistance 10 and the terminal L of outdoor terminal board 31.
That is, be supplied to the moment between holding wire 16 and power supply wire size bridging line 9 at the electric power of source power supply 7, dash current prevents that relay 19 from preventing relay coil 20 and short circuit by dash current.
The second dash current prevents that circuit 80 is configured to switch (switching) element 82 that comprises PTC thermistor 81 and be connected side by side with this PTC thermistor 81, the second dash current prevents that one end of circuit 80 is connected in the output of noise filter 70, and the other end is connected in the input of outdoor rectification part 12.In the present embodiment, this second dash current prevents that circuit 80 from suppressing the dash current of the smmothing capacitor 25 that flows to off-premises station rectification part 12 downstreams.This second dash current prevents that the action of circuit 80 from will narrate in the back.
One side's of outdoor rectification part 12 input prevents that via the first dash current circuit 60, noise filter 70 and the second dash current from preventing that circuit 80 is connected with the terminal L of outdoor terminal board 31, and the opposing party's input is connected with the terminal N of outdoor terminal board 31.This outdoor rectification part 12 is converted to the alternating voltage of supplying with from source power supply 7 DC voltage of hope, and supplies with to outdoor control part 15 and inverter circuit 23.
And as the inscape beyond above-mentioned, off-premises station 3 possesses telecommunication circuit power supply unit 13, outdoor communication circuit part 14, outdoor control part 15, dash current and prevents that relay coil 20, power supply from supplying with block system relay 21 and inverter circuit 23.
As the inverter circuit 23 of the circuit downstream of smmothing capacitor 25, supplied with DC voltage is converted to the alternating voltage of optional frequency, free voltage.In addition, be for example connected with motor etc. at inverter circuit 23, drive being arranged at (not shown) such as the compressors of off-premises station 3.
One end of telecommunication circuit power supply unit 13 is connected between outdoor relay 11 and noise filter 70, prevents that via outdoor relay 11 and dash current relay 19 is connected with the terminal L of outdoor terminal board 31.And the other end of this telecommunication circuit power supply unit 13 is connected in the terminal S2 of outdoor terminal board 31.This telecommunication circuit power supply unit 13 is converted to the alternating voltage of supplying with from source power supply 7 arbitrarily DC voltage and supplies with to outdoor communication circuit part 14.This telecommunication circuit power supply unit 13 is for example made up of half-wave rectifying circuit.
One end of outdoor communication circuit part 14 is connected in the terminal S3 of outdoor terminal board 31, and the other end is connected in telecommunication circuit power supply unit 13.And outdoor communication circuit part 14 is via communicating between holding wire 16 and power supply signal bridging line 9 and the indoor communications circuit part 6 of indoor set 2.
Dash current prevents that one end of relay coil 20 is connected in the terminal S2 of outdoor terminal board 31, and the other end is connected in the terminal S3 of outdoor terminal board 31 via power supply supply block system relay 21.As mentioned above, in the time that this dash current prevents that relay coil 20 is energized, dash current prevents the closing of contact of relay 19.
One end of power supply supply block system relay 21 is connected in dash current and prevents relay coil 20, and the other end is connected in the terminal S3 of outdoor terminal board 31.It is (normally closed that this power supply is supplied with block system relay 21 closing of contact in the time of normality; Normally closed), and according to the energising that makes contact disconnect cutting off impact electric current to prevent relay coil 20 from the action of outdoor control part 15.
In addition, although also not shown, at off-premises station 3, be provided with outdoor heat converter, outdoor fan sensor (fan sensor), electromagnetic expanding valve, cold-producing medium transfer valve and compressor as mechanical system.
Above the structure of the related air conditioner 1 of present embodiment is illustrated.Next, the action of the related air conditioner 1 of present embodiment is described.
Herein, first, the supply of the electric power while air conditioner 1 being turned round to standby with reference to Fig. 1 describes.
As shown in Figure 1, the electric power from source power supply 7 that is supplied to L, the N of outdoor terminal board 31 is supplied with by terminal S1, the S2 of the indoor terminal board 30 to indoor set 2 via power line 8 and power supply signal bridging line 9 from terminal S1, the S2 of outdoor terminal board 31.
And then the electric power from source power supply 7 that is supplied to terminal S1, the S2 of the indoor terminal board 30 of indoor set 2 inputs to indoor rectification part 4.
Inputted alternating voltage is converted to DC voltage arbitrarily by indoor rectification part 4.Indoor rectification part 4 is supplied with the DC voltage after conversion to the each formation portion of indoor control part 5 and indoor set 2.
The data of indoor control part 5 based on being stored in electric means data portion 26 judge that this air conditioner 1 is indoor electric means or outdoor electric means, in the time being judged as air conditioner 1 and being outdoor electric means, the control of outdoor starting relay 22 are set as effectively.
And whether the off-premises station 3 that the stand-by electric corresponding informance judgement of indoor control part 5 based on being stored in electric means data portion 26 is connected in indoor set 2 is off-premises stations 3 of the stand-by electric can cut down running standby time.In addition, in the present embodiment, the situation that is off-premises stations 3 of the stand-by electric can cut down running standby time for off-premises station 3 describes.
Terminal S3 and the indoor communications circuit part 6 of outdoor starting relay 22 junction chamber inner terminal platform 30 in the time of normality.Thus, indoor communications circuit part 6 is connected with off-premises station 3 via holding wire 16, in the state that can communicate with respect to off-premises station 3.
And now, indoor control part 5 is in starting the reception holding state of requirement signal for the running that sends from remote controller 17 and receive via acceptance division 18.
The outdoor relay 11 of off-premises station 3 and dash current prevent that relay 19 contact in the time of normality from disconnecting.And now, the outdoor starting relay 22 of indoor set 2 makes the disconnection that is connected between the terminal S3 of indoor terminal board 30 and outdoor power supply line 24.Therefore, between terminal S2, the S3 of outdoor terminal board 31, be not supplied to the electric power from source power supply 7, dash current prevents that relay coil 20 is in non-power status.
Thereby even if source power supply 7 is supplied to terminal L, the N of the outdoor terminal board 31 of off-premises station 3, dash current prevents that relay 19 and outdoor relay 11 are also in off-state.Therefore, in running when standby, supply with and be cut off towards the power supply that is connected in dash current and prevents the each formation portion in relay 19 and outdoor relay 11 downstreams, can in the time of running standby, reduce the stand-by electric that off-premises station 3 consumes.
Next action when, the off-premises station of air conditioner startup with reference to Fig. 1～Fig. 3 and in running describes.
First, the action of indoor set 2 is described.
As shown in Figure 2, when indoor control part 5 receives running while starting requirement (step (step) ST101) via acceptance division 18 from remote controller 17, indoor control part 5 is with reference to the information of electric means data portion 26, when in the situation that the data from electric means data portion 26 are outdoor electric means, indoor communications circuit part 6 is moved, start communicate by letter (step ST102) between off-premises station 3.
On the other hand, as (step ST103 in the situation of not yet establishing of communicating by letter between indoor communications circuit part 6 and off-premises station 3; No), indoor control part 5 makes indoor starting relay 22 move (connection) (step ST104), make the disconnection that is connected between the terminal S3 of indoor terminal board 30 and indoor communications circuit part 6, the terminal S3 of indoor terminal board 30 is connected with outdoor power supply line 24.Thus, be supplied between holding wire 16 and power supply signal bridging line 9 from the electric power of source power supply 7.
Until through stipulated time (being n second) (step ST105) herein, indoor control part 5 makes outdoor starting relay 22 move (step ST105; No), at (step ST105 after the stipulated time (being n second) herein; Be), the action of outdoor starting relay 22 is stopped (disconnection) (step ST106), the terminal S3 of indoor terminal board 30 is connected with indoor communications circuit part 6, make the disconnection that is connected between the terminal S3 of indoor terminal board 30 and outdoor power supply line 24.In addition, make the stipulated time that outdoor starting relay 22 moves (herein for n second) for example be set as being filled with to the smmothing capacitor 25 of off-premises station 3 time of electric charge, but the utility model is not limited to this stipulated time.
(step ST107 in the case of communicating by letter between indoor communications circuit part 6 and the outdoor communication circuit part 14 of off-premises station 3 established; Be), communicate by letter (the step ST108) between 6 beginnings of indoor communications circuit part and the outdoor communication circuit part 14 of off-premises station 3.
And then indoor control part 5 communicates with off-premises station 3 via indoor communications circuit part 6, start the running (step ST109) of air conditioner 1, carry out and start the corresponding cooling operation of requirement from the running of remote controller 17 or heat running, and finishing this motion flow.
On the other hand, as (step ST107 in the situation of not yet establishing of communicating by letter between indoor communications circuit part 6 and the outdoor communication circuit part 14 of off-premises station 3; No), indoor control part 5 makes indoor communications circuit part 6 move again, starts communicating by letter between off-premises station 3, and judges whether to have passed through the stipulated time (be herein n second) (step ST110).As (step ST110 in the situation of not yet passing through the stipulated time (being n second) herein; No), again judge whether communicating by letter between indoor communications circuit part 6 and the outdoor communication circuit part 14 of off-premises station 3 establishes (step ST107).(step ST107 is not yet established in communicating by letter between indoor communications circuit part 6 and the outdoor communication circuit part 14 of off-premises station 3; No), and passed through the stipulated time (step ST110 in the situation of (herein for n second); Be), indoor control part 5 is judged as communication abnormality (step ST111), finishes this motion flow.
Next, the action of off-premises station 3 is described.
In step ST104 in the motion flow (flow) of the indoor set 2 shown in Fig. 2, when the outdoor starting relay 22 of indoor set 2 connect, be supplied between holding wire 16 and power supply signal bridging line 9 during from the electric power of source power supply 7, as shown in Figure 3, start to supply with the electric power (step ST201) from source power supply 7 between the terminal S2 of the outdoor terminal board 31 of off-premises station 3 and S3.
When be supplied between the terminal S2 of outdoor terminal board 31 and S3 from the electric power of source power supply 7, dash current prevents that relay coil 20 from supplying with block system relay 21 and being energized via power supply, makes dash current prevent relay 19 short circuits (step ST202).In the time that dash current prevents relay 19 short circuit, the source power supply 7 that is supplied to terminal L, the N of outdoor terminal board 31 prevents that via dash current resistance 10 from being supplied with towards outdoor rectification part 12 and telecommunication circuit power supply unit 13.The alternating voltage of supplying with from source power supply 7 is converted to DC voltage arbitrarily by outdoor rectification part 12, and supply with to outdoor control part 15, smmothing capacitor 25 and inverter circuit 23.Telecommunication circuit power supply unit 13 is converted to the alternating voltage of supplying with from source power supply 7 arbitrarily DC voltage and supplies with to outdoor communication circuit part 14.
In the time supplying with dc source by outdoor rectification part 12 to outdoor control part 15, make outdoor relay 11 short circuits (step ST203).
Next, outdoor control part 15 moves power supply supply block system relay 21, makes contact disconnect (step ST204).
In the time that power supply supply relay 21 disconnects, as shown in Figure 4, dash current prevents that relay coil 20 is not energized, and makes dash current prevent that relay 19 from disconnecting (step ST205).Thus, in the running of off-premises station 3, can prevent the short circuit between terminal S2, the S3 of outdoor terminal board 31, and the state of communicating by letter in carrying out between indoor communications circuit part 6 and outdoor communication circuit part 14.
Like this, be accompanied by and start to supply with electric power to off-premises station 3, dash current prevents relay 19 short circuit before outdoor relay short circuit, and disconnects after outdoor relay 11 short circuits.The dash current that can suppress to be thus accompanied by the short circuit of outdoor relay 11 and flow to X capacitor 17.
Next, outdoor control part 15 moves (step ST206) outdoor communication circuit part 14, starts communicating by letter between indoor set 2.Outdoor communication circuit part 14 starts to communicate between indoor communications circuit part 6 via power supply signal bridging line 9 and holding wire 16.
As (step ST207 in the situation of communicating by letter successfully between outdoor communication circuit part 14 and indoor set 2; Be), start communicate by letter (step ST208) between indoor set 2.
And then outdoor control part 15 communicates with indoor set 2 via outdoor communication circuit part 14, start the running (step ST209) of air conditioner 1, carry out and start the corresponding cooling operation of requirement from the running of remote controller 17 or heat running, finish this motion flow.
On the other hand, (step ST207 in the case of communicating by letter between outdoor communication circuit part 14 and the indoor communications circuit part 6 of indoor set 2 not yet established; No), outdoor control part 15 makes outdoor communication circuit part 14 move again, starts communicating by letter between indoor set 2, and judges whether through stipulated time (being n second) (step ST210) herein.(step ST210 in the situation that not yet passing through the stipulated time (being n second) herein; No), again judge whether communicating by letter between outdoor communication circuit part 14 and the indoor communications circuit part 6 of indoor set 2 establishes (step ST207).(step ST207 is not established in communicating by letter between outdoor communication circuit part 14 and the indoor communications circuit part 6 of indoor set 2; No) and passed through the stipulated time (step ST210 in the situation of (herein for n second); Be), outdoor control part 15 is judged as communication abnormality (step ST211), finishes this motion flow.
Next, the related air conditioner 1 of embodiment is described to the transitional movement of running holding state transition.
Thus, from terminal L, the N of outdoor terminal board 31, the electric power from source power supply 7 of outdoor rectification part 12 and telecommunication circuit power supply unit 13 is supplied with and stopped, also stopping to the supply of the dc source of the each formation portion of off-premises station 3.Thus, air conditioner 1 transits to running holding state.
Like this, in the time of running standby, dash current is prevented to relay 19 and outdoor relay 11 are set as off-state, cut off from source power supply 7 electric power of off-premises station 3 is supplied with, the stand-by electric that can reduce thus running standby time, off-premises station 3 consumes.
And, in the time starting off-premises station 3, to supplying with the electric power from source power supply 7 between holding wire 16 and power supply signal bridging line 9, make dash current prevent that relay 19 from moving by this electric power, thereby off-premises station 3 carried out to electric power supply.Therefore can be, still three cores and be connected not increasing and implement control in the case of keeping the radical of the connecting line between indoor set 2 and off-premises station 3.
And, in the running starting after off-premises station 3, stop supplying with the electric power from source power supply 7 between holding wire 16 and power signal line 9.And, at off-premises station 3, power supply is set and supplies with block system relay 21 to prevent short circuit between terminal S2, the S3 of outdoor terminal board 31.Therefore,, in this air conditioner 1 running, can between indoor set 2 and off-premises station 3, communicate via holding wire 16.
Next, with reference to Fig. 1, the second dash current in the related air conditioner 1 of present embodiment is prevented to circuit 80 describes.
As shown in Figure 1, in the present embodiment, comprising that between the noise filter 70 of X capacitor 71 and outdoor rectification part 12, possessing the second dash current prevents circuit 80, this second dash current prevents that circuit 80 from suppressing to flow to the dash current of smmothing capacitor 25 in the time that inverter circuit 23 stops.This second dash current prevents the switch element 82 that circuit 80 comprises as mentioned above PCT thermistor 81 and is connected in parallel with this thermistor 81.
When starting the running of air conditioner 1, and carry out when starting the corresponding cooling operation of requirement from the running of remote controller 17 or heat running, utilizing outdoor control part 15 to carry out switch control so that not shown compressor action to inverter circuit 23.In the running of this air conditioner 1, outdoor control part 15 makes inverter circuit 23 move/stop according to air-conditioning state.In the present embodiment, move/stop synchronize with this inverter circuit 23, outdoor control part 15 carries out break-make (on/off) to switch element 82 and controls.
Particularly, in the time that inverter circuit 23 moves, outdoor control part 15 makes switch element 82 connect (ON), in the time that the inverter circuit 23 that comprises (in running standby) in the stopping of air conditioner 1 stops, making switch element 82 disconnect (OFF).
Meanwhile, be accompanied by based on running and start requirement and start to off-premises station 3 to supply with electric power, before outdoor relay 11 short circuits, make dash current prevent relay 19 short circuits, and after outdoor relay 11 short circuits, disconnect dash current and prevent relay 19, thus, while preventing that by dash current resistance 10 from suppressing outdoor relay 11 short circuit, flow to the dash current that is connected to the included X capacitor 71 of the alternate noise filter 70 of source power supply 7, and suppress to flow to the dash current of smmothing capacitor 25 by PTC thermistor.
And, for example, when in the time that the inverter circuit 23 in the time comprising running standby stops, dash current prevents relay 19 short trouble, the idle current that flows through X capacitor 71 flows through all the time dash current and prevents resistance 10, but by PCT thermistor 81 being set in the downstream of noise filter 70, can suppress to flow to by this PCT thermistor 81 dash current of smmothing capacitor 25, therefore, prevent that for the first dash current the included dash current of circuit from preventing the resistance value of resistance 10, as long as set according to the capacitance size of X capacitor 70 value of having considered the dash current that flows to this X capacitor 70 for.Therefore, continue to flow even if flow through the idle current of X capacitor 71 in the time that dash current prevents relay 19 short trouble, also can not cause dash current to prevent the abnormal heating of resistance 10.
As described above, according to the air conditioner of embodiment, comprise that by being configured to dash current prevents resistance and prevents that with this dash current the dash current that resistance is connected in series from preventing that the first dash current of relay from preventing that circuit and outdoor relay are connected in parallel, by be configured to comprise PTC thermistor and and the second dash current of the switch element that is connected in parallel of this PTC thermistor prevent that circuit is arranged between noise filter and outdoor rectification part, in the time being connected in the circuit downstream of smmothing capacitor of output of outdoor rectification part that is inverter circuit action, make switch element short circuit, when inverter circuit in the time comprising running standby stops, make in advance switch element disconnect, be accompanied by based on running and start requirement and start to off-premises station to supply with electric power, before outdoor relay short circuit, make dash current prevent relay short circuit, and after outdoor relay short circuit, disconnect dash current and prevent relay, thus, utilize dash current to prevent that resistance from suppressing dash current and flowing to the dash current that is connected to the included X capacitor of the alternate noise filter of source power supply while preventing relay short circuit, and utilize PTC thermistor to suppress to flow to the dash current of smmothing capacitor.
And, even if in the situation that dash current prevents relay short trouble, because preventing the included dash current of circuit, the first dash current prevents that the resistance value of resistance 10 is as long as set according to the capacitance size of X capacitor the value of having considered the dash current that flows to this X capacitor for, therefore, continue to flow even if flow through the idle current of X capacitor in the time that dash current prevents relay short trouble, also can not cause dash current to prevent the abnormal heating of resistance.
Thereby, even if prevent that at dash current the downstream of resistance from possessing the structure of the noise filter that comprises X capacitor, in the time that dash current prevents relay short trouble, also can suppress the abnormal heating that dash current that the idle current because flowing through X capacitor causes prevents resistance, and the dash current of the smmothing capacitor that possesses of the downstream that can suppress to flow to outdoor rectification part, can construct the higher system of security.
And, prevent that owing to can being used in the second dash current of dash current that suppresses to flow through smmothing capacitor circuit is from preventing that for the first dash current that suppresses the dash current that flows through X capacitor circuit is independent, therefore, by by outdoor relay, dash current prevent resistance and dash current prevent relay configuration from other Circnit Layout on different submounts, in the time forming the off-premises station of outdoor electric means or indoor electric means, can carry out construction systems according to the easily change structure that has or not of this submounts, therefore can be formed as the system that versatility is higher.
In addition, in the above-described embodiment, the outdoor terminal board 31 that source power supply 7 is connected in to off-premises station 3 is shown, the distribution example of the outdoor electric means that the electric power receiving at off-premises station 3 is supplied with to indoor set 2, but the utility model is not limited to this, in the distribution example of the indoor electric means that source power supply 7 is connected in to the indoor terminal board 30 of indoor set 2, the electric power receiving at indoor set 2 is supplied with to off-premises station 3, certainly also can obtain the effect identical with embodiment.
Fig. 4 is the figure that an example of the electrical systematic drawing different from Fig. 1 of the related air conditioner of embodiment is shown.In the example shown in Fig. 4, the indoor terminal board 30 that source power supply 7 is connected in to indoor set 2 is shown, the distribution example of the indoor electric means that the electric power receiving at indoor set 2 is supplied with to off-premises station 3.
For example, as shown in Figure 4, at the indoor terminal board 30 of indoor set 2, terminal L, N are set, source power supply 7 is connected in to this terminal L, N.And then the terminal L of indoor terminal board 30 is connected with the terminal S1 of this indoor terminal board 30.And the terminal N of indoor terminal board 30 is connected with the terminal S2 of this indoor terminal board 30.
And then when receiving running while starting requirement via acceptance division 18 from remote controller 17, the indoor power supply relay 27 that when indoor control part 5 makes normality, contact disconnects (often opening) moves (ON).Thus, the electric power from source power supply 7 of L, N that is supplied to indoor terminal board 30 is from terminal S1, the S2 of indoor terminal board 30 via power line 8 and power supply signal bridging line 9 and supplied with by terminal S1, the S2 of the outdoor terminal board 31 to off-premises station 3.Even if in this structure, also can be by the same action acquisition effect identical with embodiment.
And, structure shown in above embodiment is an example of structure of the present utility model, certainly also can be combined with other known technology, also can omit a part etc. for said structure or change a part for said structure and form in the scope that does not depart from purport of the present utility model.
The industrial possibility of utilizing
As above, the related air conditioner of the utility model for indoor set and off-premises station by thering is power line, bridging line, the inside and outside connecting line of three cores of holding wire connects, and have that to stop in standby supplying with electric power towards off-premises station in running be useful with the air conditioner of function of the reduction that realizes stand-by electric, the related air conditioner of the utility model is specially adapted to prevent relay at dash current, dash current prevents that the downstream of resistance and outdoor relay from disposing and have the function that suppresses conducted noise etc., and comprise the structure of the noise filter of the alternate X capacitor that is connected to source power supply.
Claims (5)
1. an air conditioner, this air conditioner possesses indoor set and off-premises station, described indoor set is connected by three heart yearns with power line, bridging line and holding wire with described off-premises station, and the source power supply that utilization is supplied with to the either party in described off-premises station or described indoor set is via described power line and bridging line power supply
Described air conditioner is characterised in that,
Described off-premises station possesses:
Noise filter, this noise filter comprises the alternate X capacitor that is connected to described source power supply;
Outdoor rectification part, this outdoor rectification part is carried out rectification to described source power supply;
Smmothing capacitor, this smmothing capacitor is connected in the output of described outdoor rectification part, and the output of outdoor rectification part is carried out to smoothing;
Outdoor relay, this outdoor relay is arranged at the upstream of described noise filter, and one end is connected in described source power supply, and the other end is connected in the input of noise filter;
The first dash current prevents circuit, and this first dash current prevents that circuit is configured to and comprises that the dash current of dash current that suppresses to flow to described X capacitor prevents resistance, and is connected in parallel with described outdoor relay; And
The second dash current prevents circuit, this second dash current prevents that circuit is arranged between described noise filter and described outdoor rectification part, be configured to and comprise the PTC thermistor that suppresses the dash current that flows to described smmothing capacitor, this second dash current prevents that one end of circuit is connected in the output of described noise filter, and the other end is connected in the input of described outdoor rectification part.
2. air conditioner according to claim 1, is characterized in that,
Described the first dash current prevents that circuit is configured to and comprises that described dash current prevents resistance and prevents that with this dash current the dash current that resistance is connected in series from preventing relay.
3. air conditioner according to claim 2, is characterized in that,
Be accompanied by and start to supply with electric power to described off-premises station, described dash current prevents relay short circuit before described outdoor relay short circuit, and disconnects after described outdoor relay short circuit.
4. according to the air conditioner described in claim 2 or 3, it is characterized in that,
Described the second dash current prevents that circuit is configured to the switch element that comprises described PTC thermistor and be connected in parallel with this PTC thermistor.
5. air conditioner according to claim 4, is characterized in that,
The short circuit in the time of the circuit downstream action of described smmothing capacitor of described switch element, and disconnect in the time that described circuit downstream stops.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-010252 | 2013-01-23 | ||
| JP2013010252A JP6231749B2 (en) | 2013-01-23 | 2013-01-23 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203628933U true CN203628933U (en) | 2014-06-04 |
Family
ID=50815404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744274.2U Expired - Lifetime CN203628933U (en) | 2013-01-23 | 2013-11-21 | Air-conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6231749B2 (en) |
| CN (1) | CN203628933U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214901B (en) * | 2014-09-25 | 2017-01-11 | 中国扬子集团滁州扬子空调器有限公司 | Out-of-communication control method of indoor unit of inverter air conditioner |
| CN107408958A (en) * | 2015-03-03 | 2017-11-28 | 三菱电机株式会社 | Communication system, dispensing device and reception device |
| CN107431671A (en) * | 2015-04-01 | 2017-12-01 | 三菱电机株式会社 | Communication system and communicator |
| CN108307651A (en) * | 2015-06-26 | 2018-07-20 | 三菱电机株式会社 | Conditioner |
| CN108431516A (en) * | 2016-01-06 | 2018-08-21 | 三菱电机株式会社 | Air conditioner |
| CN110710121A (en) * | 2017-06-16 | 2020-01-17 | 三菱电机株式会社 | Communication device, communication method, and program |
| CN111868446A (en) * | 2018-03-26 | 2020-10-30 | 三菱电机株式会社 | Air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS62123984A (en) * | 1985-11-22 | 1987-06-05 | Fanuc Ltd | Driver circuit for ac motor |
| JP4318662B2 (en) * | 2005-04-22 | 2009-08-26 | シャープ株式会社 | Protection circuit, power supply |
| JP2007003082A (en) * | 2005-06-23 | 2007-01-11 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JP2010192256A (en) * | 2009-02-18 | 2010-09-02 | Aisin Seiki Co Ltd | Fuel cell power generation system |
| JP5241585B2 (en) * | 2009-04-06 | 2013-07-17 | 三菱電機株式会社 | Air conditioner |
| JP5404582B2 (en) * | 2010-11-15 | 2014-02-05 | 三菱電機株式会社 | Air conditioner |
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- 2013-01-23 JP JP2013010252A patent/JP6231749B2/en active Active
- 2013-11-21 CN CN201320744274.2U patent/CN203628933U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214901B (en) * | 2014-09-25 | 2017-01-11 | 中国扬子集团滁州扬子空调器有限公司 | Out-of-communication control method of indoor unit of inverter air conditioner |
| CN107408958A (en) * | 2015-03-03 | 2017-11-28 | 三菱电机株式会社 | Communication system, dispensing device and reception device |
| CN107431671A (en) * | 2015-04-01 | 2017-12-01 | 三菱电机株式会社 | Communication system and communicator |
| CN107431671B (en) * | 2015-04-01 | 2020-05-19 | 三菱电机株式会社 | Communication system and communication device |
| CN108307651A (en) * | 2015-06-26 | 2018-07-20 | 三菱电机株式会社 | Conditioner |
| CN108307651B (en) * | 2015-06-26 | 2019-12-24 | 三菱电机株式会社 | Air conditioning apparatus |
| CN108431516A (en) * | 2016-01-06 | 2018-08-21 | 三菱电机株式会社 | Air conditioner |
| CN110710121A (en) * | 2017-06-16 | 2020-01-17 | 三菱电机株式会社 | Communication device, communication method, and program |
| CN110710121B (en) * | 2017-06-16 | 2021-07-23 | 三菱电机株式会社 | Communication device, communication method, and recording medium |
| CN111868446A (en) * | 2018-03-26 | 2020-10-30 | 三菱电机株式会社 | Air conditioner |
| CN111868446B (en) * | 2018-03-26 | 2021-10-15 | 三菱电机株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014142107A (en) | 2014-08-07 |
| JP6231749B2 (en) | 2017-11-15 |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140604 |