CN105318485B - Grouping control circuit and method for indoor unit of air conditioner - Google Patents

Grouping control circuit and method for indoor unit of air conditioner Download PDF

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Publication number
CN105318485B
CN105318485B CN201410259521.9A CN201410259521A CN105318485B CN 105318485 B CN105318485 B CN 105318485B CN 201410259521 A CN201410259521 A CN 201410259521A CN 105318485 B CN105318485 B CN 105318485B
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circuit
indoor set
packet
control
communication
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CN105318485A (en
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黄强
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The invention discloses a grouping control circuit and a grouping control method for indoor units of an air conditioner. Wherein, the group control circuit of the indoor unit of the air conditioner comprises: the grouping circuit is connected with the indoor units and is used for grouping the indoor units; the communication circuit is connected with the grouping circuit and is used for transmitting an address acquisition command to the grouping circuit and receiving grouping information of the indoor unit through the grouping circuit; and the control circuit is connected with the communication circuit and used for sending the address acquisition command, receiving the grouping information and controlling the indoor unit according to the grouping information. The invention solves the problem that the grouping control mode of the indoor unit of the air conditioner is more complex in the prior art, thereby achieving the effects of simplifying the grouping control mode of the indoor unit of the air conditioner and improving the control precision.

Description

The group control circuit and method of air conditioner room unit
Technical field
The present invention relates to air-conditioner field, group control circuit and side in particular to a kind of air conditioner room unit Method.
Background technology
, it is necessary to carry out packet control to more indoor sets under system in air conditioner multiple on-line system.Under normal circumstances, when All indoor sets are carried out at same controller LAN (Controller Area Network, abbreviation CAN) to indoor set Packet, because network attribute is the same, it cannot be distinguished by being grouped indoor set characteristic, it is therefore desirable to increase multigroup network, to reach packet Purpose is controlled, indoor set 1 to indoor set 9 is layered 3 as shown in figure 1, being schematically illustrated under network 1, network 2 and network 3 Group, so by network 1, network 2 and network 3 carry out be grouped control situation.Such a mode will to the network equipment, the communication resource Ask comparison high, and circuit design cost is high, network control is complex, and is unfavorable for network extension.
For air conditioner room unit in correlation technique packet control mode it is more complicated the problem of, at present not yet propose have The solution of effect.
The content of the invention
It is existing to solve it is a primary object of the present invention to provide the group control circuit and method of a kind of air conditioner room unit There is the problem of packet control mode of air conditioner room unit in technology is more complicated.
A kind of according to an aspect of the invention, there is provided group control circuit of air conditioner room unit.
Included according to the group control circuit of the air conditioner room unit of the present invention:Packet circuit, it is connected with the indoor set Connect, for being grouped to the indoor set;Telecommunication circuit, it is connected with the packet circuit, for transmitting address acquisition life Order passes through the grouping information of the packet circuit reception indoor set to the packet circuit;And control circuit, with institute State telecommunication circuit to be connected, for sending the address acquisition order, receive the grouping information, and according to the grouping information Control the indoor set.
Further, the packet circuit includes:Communication bus, it is connected with the indoor set;Handover module, it is and described Communication bus is connected;And communication loop, it is connected between the handover module and the telecommunication circuit.
Further, the communication bus includes the first communication interface and the second communication interface, wherein, the handover module Including:First dpdt relay, wherein, the first switch contact portion of first dpdt relay is described Between one communication interface and the first end of the communication loop, the second switch contact portion of first dpdt relay Between first communication interface and the second end of the communication loop;Second dpdt relay, wherein, described second The first switch contact portion of dpdt relay between second communication interface and the first end of the communication loop, The second switch contact portion of second dpdt relay in second communication interface and the communication loop the Between two ends;First FET, it is connected with the control coil of first dpdt relay;And second field-effect Pipe, is connected with the control coil of second dpdt relay.
Further, the communication loop also includes first resistor, second resistance and wire jumper, wherein, the first resistor First end and the first end of the second resistance the second end of the communication loop, and institute are connected to by the wire jumper State the second end of first resistor and the second end of the second resistance and be connected to the first end of the communication loop.
Further, the packet circuit also includes:Chip is protected, is connected to the first end of the communication loop and described Between second end of communication loop.
Further, the packet circuit also includes:First electric capacity, it is connected to the first end and signal of the communication loop Between ground;And second electric capacity, it is connected between the second end of the communication loop and the signal ground.
Further, the telecommunication circuit includes:Transceiver, it is connected with the packet circuit;And isolated from power core Piece, it is connected between the transceiver and the control circuit.
According to another aspect of the present invention, there is provided a kind of packet control process of air conditioner room unit.
Included according to the packet control process of the air conditioner room unit of the present invention:The indoor set is grouped;Send Address acquisition order is to the indoor set, to obtain the grouping information of the indoor set;And controlled according to the grouping information The indoor set.
Further, the indoor set is connected by first line and the second circuit with controller, wherein, pass through control The first line is alternately connected with second circuit and the indoor set is grouped.
Further, control the first line alternately to be connected with second circuit and packet bag is carried out to the indoor set Include:Control the first line to turn on, and control second circuit to disconnect;Send acquisition of information order to the First Line The indoor set that road is connected, it is grouped with pair indoor set being connected with the first line;Control the First Line Road disconnects, and controls second line conduction;And send described information and obtain to order and be extremely connected with second circuit The indoor set, be grouped with pair indoor set being connected with second circuit.
In the present invention, using the group control circuit of the air conditioner room unit with following structure:Packet circuit, with institute State indoor set to be connected, for being grouped the indoor set;Telecommunication circuit, it is connected with the packet circuit, for passing Defeated address acquisition order passes through the grouping information of the packet circuit reception indoor set to the packet circuit;And Control circuit, it is connected with the telecommunication circuit, for sending the address acquisition order, receives the grouping information, and press The indoor set is controlled according to the grouping information.By setting packet circuit, realize when being grouped to indoor set, without Increase new network, reduce the requirement to the network equipment and the communication resource, correspondingly reduce the complexity of packet control, solution Determined air conditioner room unit in the prior art packet control mode it is more complicated the problem of, and then simplified air conditioner chamber The packet control mode of interior machine, the effect for improving control accuracy.Also, the network equipment and the communication resource are wanted due to reducing Ask, thus also reached the effect for reducing circuit design cost.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is to control topological diagram according to the packet of the air conditioner room unit of prior art;
Fig. 2 is the schematic diagram of the group control circuit of air conditioner room unit according to embodiments of the present invention;
Fig. 3 is the packet control topological diagram of air conditioner room unit according to embodiments of the present invention;
Fig. 4 be air conditioner room unit according to embodiments of the present invention group control circuit in packet circuit circuit diagram;
Fig. 5 be using air conditioner room unit according to embodiments of the present invention group control circuit in packet circuit to interior The schematic diagram that machine is grouped;
Fig. 6 be air conditioner room unit according to embodiments of the present invention group control circuit in telecommunication circuit circuit diagram;
Fig. 7 is the flow chart of the packet control process of air conditioner room unit according to embodiments of the present invention;And
Fig. 8 is the particular flow sheet of the packet control process of air conditioner room unit according to embodiments of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product Or the intrinsic other steps of equipment or unit.
In the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.Below will The present invention will be described in detail with reference to the accompanying drawings and embodiments.
Embodiment 1
According to embodiments of the present invention, a kind of device that can be used for implementing the application embodiment of the method can be provided to implement Example, the group control circuit of the air conditioner room unit provided below the embodiment of the present invention do specific introduction:
Fig. 2 is the schematic diagram of the group control circuit of air conditioner room unit according to embodiments of the present invention, as shown in Fig. 2 The group control circuit for the air conditioner room unit that the embodiment of the present invention is provided mainly includes packet circuit 10, the and of telecommunication circuit 20 Control circuit 30, wherein:
Packet circuit 10 is connected with indoor set, for being grouped to indoor set, wherein, the quantity of indoor set is more Individual, each indoor set is connected with packet circuit 10.
Telecommunication circuit 20 is connected with packet circuit 10, for transmitting address acquisition order to packet circuit 10, and passes through Packet circuit 10 receives the grouping information of indoor set, wherein, address acquisition order is used for the IP address for obtaining indoor set, packet electricity Road 10 obtains the IP address of indoor set after address acquisition order is received, because packet circuit 10 has been carried out point to indoor set Group, so, the transmission path of the IP address of the indoor set in different groups is different, the IP of the indoor set in identical group The transmission path of location is identical, therefore, by transmitting address acquisition order to packet circuit 10, to obtain the IP address of indoor set, The grouping information of indoor set can be accurately obtained.
Control circuit 30 is connected with telecommunication circuit 20, for sending address acquisition order, receives grouping information, and according to Grouping information controls indoor set, wherein, control circuit 30 is in the way of grouping information carries out being grouped control to indoor set, with showing Have in technology it is any carry out be grouped control mode it is identical, here is omitted.
Fig. 3 is to carry out packet control to air conditioner room unit using the group control circuit of the air conditioner room unit in Fig. 2 Topological diagram, as shown in figure 3, the group control circuit of the air conditioner room unit provided using the embodiment of the present invention, by setting Put packet circuit, realize when being grouped to indoor set, without increasing new CAN network, reduce to the network equipment and The requirement of the communication resource, the complexity of packet control is correspondingly reduced, point for solving air conditioner room unit in the prior art The problem of group control mode is more complicated, and then the packet control mode of simplified air conditioner room unit, improve control essence The effect of degree.Also, due to reducing the requirement to the network equipment and the communication resource, thus also reached reduction circuit design into This effect.
Fig. 4 be air conditioner room unit according to embodiments of the present invention group control circuit in packet circuit circuit diagram, As shown in figure 4, in the group control circuit for the air conditioner room unit that the embodiment of the present invention is provided, packet circuit 10 mainly wraps Communication bus 11, handover module 12 and communication loop 13 are included, wherein:
Communication bus 11 is connected with indoor set, and specifically, communication bus 11 is logical including the first communication interface CN1 and second Believe the communication bus interface that interface CN2, the first communication interface CN1 and the second communication interface CN2 are different grouping indoor set, connection The indoor set being specifically grouped.
Handover module 12 is connected with communication bus 11, and specifically, handover module 12 mainly includes two-way relay switch With FET of the control per road relay switch, wherein, the first dpdt relay 121 in two-way relay switch First switch contact K6 is connected between the first communication interface CN1 and the first end of communication loop 13, the first DPDT relay The second switch contact K12 of device 121 is connected between the first communication interface CN1 and the second end of communication loop 13.Two-way relay The first switch contact K11 of the second dpdt relay 122 in device switch is connected to the second communication interface CN2 with communicating back Between the first end on road 13, the second switch contact K10 of the second dpdt relay 122 is connected to the second communication interface CN2 Between the second end of communication loop 13.First FET Q4 is connected with the control coil of the first dpdt relay 121 Connect, first FET Q4 is the triode of the first dpdt relay 121 of control, and the first FET Q4 base stage is led to Cross resistance R23 and be connected to LINKA-RH, LINK A-RH are the first FET Q4 conducting triggering level, for passing through control Whether first FET Q4's turns on to control the switching of the first dpdt relay 121, the first FET Q4 collection Electrode passes through diode D6 connection+12V voltages.Second FET Q3 and the second dpdt relay 122 control coil Be connected, second FET Q3 be control the second dpdt relay 122 triode, the second FET Q3 base Pole is connected to LINK B-RH by resistance R24, and LINK B-RH are the second FET Q3 conducting triggering level, for passing through Control whether turning on to control the switching of the second dpdt relay 122, the second FET Q3 for the second FET Q3 Colelctor electrode pass through diode D7 connection+12V voltages.
Fig. 5 is the schematic diagram being grouped using the packet circuit in Fig. 4 to indoor set, as shown in figure 5, in proper communication When, two triodes control the adhesive simultaneously of two relays, and when needing to be grouped indoor set, relay is inhaled all the way for control Close, another way disconnect, pair indoor set being connected with the relay of adhesive is grouped, after the completion of packet, control another way after The relay of electrical equipment adhesive, originally adhesive disconnects, and realizes that pair indoor set being connected with another way relay is grouped.
Communication loop 13 is connected between handover module 12 and telecommunication circuit 20, specifically, as shown in figure 4, the communication is returned Road 13 mainly includes the resistance R7 being arranged in the first end of communication loop 13 and is arranged on the second end of communication loop 13 Resistance R49, the CAN communication loop between indoor set and group control circuit is formed by resistance R7 and resistance R49.
Preferably, communication loop 13 also includes first resistor R67, second resistance R68 and wire jumper CN3, wherein, first resistor R67 first end and second resistance R68 first end are connected to the second end of communication loop 13, and by wire jumper CN3 One resistance R67 the second end and second resistance R68 the second end are connected to the first end of communication loop 13.
By setting first resistor R67, second resistance R68 and wire jumper CN3 in communication loop 13, first resistor is utilized As communication build-out resistor, wire jumper CN3 is used for choosing whether the access communications in communication loop 13 R67 and second resistance R68 With resistance, if communication distance is closer, can not access communications build-out resistor, if connection line it is long so that communication away from From relatively far away from, then access communications build-out resistor is needed, used decay of the compensation communication data in transmitting procedure, improved data Transmission precision.
It is further preferred that in embodiments of the present invention, packet circuit 10 also includes protection chip 14, the protection chip 14 It is connected between the first end of communication loop 13 and the second end of communication loop 13, specifically, protection chip 14 can be transient state Suppress diode (Transient Voltage Suppressor, abbreviation TVS), by being arranged to CAN in packet circuit 10 The two-way TVS protection chips of bus design, signal enters back into telecommunication circuit 20 after first passing around TVS protections in CAN bus, Electromagnetic interference (Electro-Magnetic Interference, abbreviation EMI) resistance energy can be improved in high-speed CAN bus Power and antistatic capacity, in embodiments of the present invention, protection chip 14 can use NUP2105 chips.
In addition, packet circuit 10 also includes the first electric capacity C70 and the second electric capacity C98, the first electric capacity C70, which is connected to, to communicate back Between the first end and signal ground on road 13, the second electric capacity C98 is connected between the second end of communication loop 13 and signal ground.First The differential signal that electric capacity C70 and the second electric capacity C98 is used to transmit telecommunication circuit 20 is filtered processing, and differential signal is Telecommunication circuit 20 the CAN level signals from control circuit 30 are changed after signal, the differential signal be used for and interior Machine is communicated.
Fig. 6 be air conditioner room unit according to embodiments of the present invention group control circuit in telecommunication circuit circuit diagram, As shown in fig. 6, telecommunication circuit 20 mainly includes CAN transceiver 21 and isolated from power chip 22, wherein, CAN transceiver 21 is with dividing Group circuit 10 is connected, for the CAN level signals from control circuit 30 to be converted to after differential signal through packet circuit 10 Transmit to indoor set.Isolated from power chip 22 is connected between CAN transceiver 21 and control circuit 30, for by control circuit 30 Isolated with the power supply of CAN transceiver 21, make the master for protecting control circuit 30 well when under extreme case occurs in bus Plate and other circuits, increase the antijamming capability and reliability of integrated communication.
Wherein, isolated from power chip 22 is connected with the CAN_TX_HR of control circuit 30, and control circuit is come from for receiving 30 data sent, isolated from power chip 22 are connected with the CAN_RX_HR of control circuit 30, for sending data to control electricity Road 30,5V-CAN are really insulating power supply+5V, and C72 is the filter capacitor of power supply over the ground.
Specifically, CAN transceiver 21 can use IC SN65HVD256 chips, and isolated from power chip 22 can use IC ISO7321 chips, the purpose of isolated from power chip 22 are that 3.3V level signals are changed into independent 5V level signals, therefore pin INA and OUTA is corresponding relation, and simply level is different, and OUTC is corresponding with INC, is actually equal to CAN transceiver 21 RXD pins be connected with CAN-RX_HR, the TXD pins of CAN transceiver 21 are connected with CAN-TX_HR, simply among carry out Isolated from power is changed.
Embodiment 2
According to embodiments of the present invention, a kind of packet control for being used to implement the air conditioner room unit of above-mentioned process is additionally provided The packet control process of the air conditioner room unit of circuit, can be the flow of accompanying drawing illustrates the step of, it is necessary to explanation Performed in the computer system of such as one group computer executable instructions, although also, show logical order in flow charts, But in some cases, can be with the step shown or described by being performed different from order herein.The air conditioner room unit The group control circuit of air conditioner room unit that is mainly provided by the above of the embodiment of the present invention of packet control process Perform, the packet control process of the air conditioner room unit of the process provided below the embodiment of the present invention does specific introduction:
According to embodiments of the present invention, there is provided a kind of packet control process of air conditioner room unit, Fig. 7 are according to the present invention The flow chart of the packet control process of the air conditioner room unit of embodiment, as shown in fig. 7, this method includes steps S702 To step S706:
S702:Indoor set is grouped, wherein, the quantity of indoor set is multiple, and each indoor set is real with the present invention The packet circuit applied in the group control circuit for the air conditioner room unit that the above is provided is connected, and is carrying out indoor set During packet, indoor set is grouped using packet circuit.
S704:Address acquisition order is sent to indoor set, to obtain the grouping information of indoor set, wherein, address acquisition life The IP address for obtaining indoor set is made, packet circuit obtains the IP address of indoor set after address acquisition order is received, by Indoor set is grouped in packet circuit, so, the transmission path of the IP address of the indoor set in different groups is different, The transmission path of the IP address of indoor set in identical group is identical, therefore, by transmitting address acquisition order to being grouped electricity Road, to obtain the IP address of indoor set, the grouping information of indoor set can be accurately obtained.
S706:According to grouping information control indoor set, wherein, according to grouping information to indoor set carry out be grouped control side Formula, with the prior art it is any carry out be grouped control mode it is identical, here is omitted.
The packet control process for the air conditioner room unit that the embodiment of the present invention is provided, by using packet circuit to interior Machine is grouped, and is realized when being grouped to indoor set, without increasing new CAN network, reduce to the network equipment and The requirement of the communication resource, the complexity of packet control is correspondingly reduced, point for solving air conditioner room unit in the prior art The problem of group control mode is more complicated, and then the packet control mode of simplified air conditioner room unit, improve control essence The effect of degree.Also, due to reducing the requirement to the network equipment and the communication resource, thus also reached reduction circuit design into This effect.
Wherein, indoor set is connected by first line and the second circuit with controller, what the embodiment of the present invention was provided The packet control process of air conditioner room unit is grouped by controlling first line alternately to be connected with the second circuit to indoor set.
Specifically, as shown in figure 8, control first line is alternately connected with the second circuit carries out packet to indoor set including such as Lower step:
First, upon power-up of the system, control first line and the second circuit to be both turned on, namely in control first line after The equal adhesive of relay in electrical equipment and the second circuit, after all adhesives of all relays, the status data of indoor set is read, it is determined that Go out the quantity of online indoor set, namely determine all indoor sets being connected with two lines road.
Secondly, control first line conducting, and control the second circuit to disconnect, i.e. relay of the control wherein on a circuit Device adhesive, and the relay on another circuit disconnects.
Then, acquisition of information order is sent to the indoor set being connected with first line, is connected with first line with Dui Indoor set packet, and obtain the grouping information of indoor set, by that analogy, control first line disconnects, and controls the second circuit Conducting, acquisition of information order is sent to the indoor set being connected with the second circuit, with pair indoor set being connected with the second circuit Packet, and the grouping information of indoor set is obtained, judge whether all online indoor sets are grouped completion afterwards, if packet is completed , then relay all adhesives on two lines road are controlled, system is normally communicated.
Pass through above description, it can be seen that the present invention is realized when being grouped to indoor set, without increasing newly CAN network, the requirement to the network equipment and the communication resource is reduced, correspondingly reduce the complexity of packet control, Jin Erda Arrive the packet control mode of simplified air conditioner room unit, improve the effect of control accuracy.Also, network is set due to reducing The standby and requirement of the communication resource, thus also reached the effect for reducing circuit design cost.
It should be noted that for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as a series of Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement because According to the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art should also know Know, embodiment described in this description belongs to preferred embodiment, and involved action and module are not necessarily of the invention It is necessary.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate Machine, server, or network equipment etc.) perform method described in each embodiment of the present invention.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored Performed in the storage device by computing device, either they are fabricated to respectively each integrated circuit modules or by they In multiple modules or step be fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific Hardware and software combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (9)

  1. A kind of 1. group control circuit of air conditioner room unit, it is characterised in that including:
    Packet circuit (10), is connected with the indoor set, for being grouped to the indoor set, wherein, the indoor set It is connected by first line and the second circuit with controller, wherein, by controlling the first line and second circuit Alternately connect and the indoor set is grouped;
    Telecommunication circuit (20), it is connected with the packet circuit (10), for transmitting address acquisition order to the packet circuit, And the grouping information of the indoor set is received by the packet circuit (10);And
    Control circuit (30), it is connected with the telecommunication circuit (20), for sending the address acquisition order, receives described point Group information, and control the indoor set according to the grouping information.
  2. 2. group control circuit according to claim 1, it is characterised in that the packet circuit (10) includes:
    Communication bus (11), is connected with the indoor set;
    Handover module (12), it is connected with the communication bus (11);And
    Communication loop (13), it is connected between the handover module (12) and the telecommunication circuit (20).
  3. 3. group control circuit according to claim 2, it is characterised in that the communication bus (11) includes the first communication Interface (CN1) and the second communication interface (CN2), wherein, the handover module (12) includes:
    First dpdt relay (121), wherein, the first switch contact of first dpdt relay (121) connects It is connected between the first end of first communication interface (CN1) and the communication loop (13), the first DPDT relay The second switch contact portion of device (121) the second end of first communication interface (CN1) and the communication loop (13) it Between;
    Second dpdt relay (122), wherein, the first switch contact of second dpdt relay (122) connects It is connected between the first end of second communication interface (CN2) and the communication loop (13), the second DPDT relay The second switch contact portion of device (122) the second end of second communication interface (CN2) and the communication loop (13) it Between;
    First FET (Q4), it is connected with the control coil of first dpdt relay (121);And
    Second FET (Q3), it is connected with the control coil of second dpdt relay (122).
  4. 4. group control circuit according to claim 3, it is characterised in that the communication loop (13) also includes the first electricity (R67), second resistance (R68) and wire jumper (CN3) are hindered, wherein, the first end and the second resistance of the first resistor (R67) (R68) first end is connected to the second end of the communication loop (13), and first electricity by the wire jumper (CN3) Hinder second end of (R67) and the second end of the second resistance (R68) and be connected to the first end of the communication loop (13).
  5. 5. group control circuit according to claim 3, it is characterised in that the packet circuit (10) also includes:
    Protect chip (14), be connected to the communication loop (13) first end and the communication loop (13) the second end it Between.
  6. 6. group control circuit according to claim 3, it is characterised in that the packet circuit (10) also includes:
    First electric capacity (C70), it is connected between first end and the signal ground of the communication loop (13);And second electric capacity (C98), it is connected between the second end and the signal ground of the communication loop (13).
  7. 7. group control circuit according to any one of claim 1 to 6, it is characterised in that the telecommunication circuit (20) Including:
    CAN transceiver (21), it is connected with the packet circuit (10);And
    Isolated from power chip (22), it is connected between the CAN transceiver (21) and the control circuit (30).
  8. A kind of 8. packet control process of air conditioner room unit, it is characterised in that including:
    The indoor set is grouped;
    Address acquisition order is sent to the indoor set, to obtain the grouping information of the indoor set;And
    The indoor set is controlled according to the grouping information.
    The indoor set is connected by first line and the second circuit with controller, wherein, by controlling the first line Alternately connected with second circuit and the indoor set is grouped.
  9. 9. packet control process according to claim 8, it is characterised in that control the first line and second line Road alternating connection carries out packet to the indoor set to be included:
    Control the first line to turn on, and control second circuit to disconnect;
    Acquisition of information order is sent to the indoor set being connected with the first line, is connected with the first line with Dui The indoor set connect is grouped;
    Control the first line to disconnect, and control second line conduction;And
    Send described information and obtain order to the indoor set that is connected with second circuit, with pair with second circuit The indoor set packet being connected.
CN201410259521.9A 2014-06-11 2014-06-11 Grouping control circuit and method for indoor unit of air conditioner Active CN105318485B (en)

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