CN203869260U - Grouping control circuit of air conditioner indoor unit - Google Patents
Grouping control circuit of air conditioner indoor unit Download PDFInfo
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- CN203869260U CN203869260U CN201420311163.7U CN201420311163U CN203869260U CN 203869260 U CN203869260 U CN 203869260U CN 201420311163 U CN201420311163 U CN 201420311163U CN 203869260 U CN203869260 U CN 203869260U
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- 238000004891 communication Methods 0.000 claims abstract description 89
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 7
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- 239000000853 adhesive Substances 0.000 description 5
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- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a grouping control circuit of air conditioner indoor unit. 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. Through the utility model discloses, the more complicated problem of group control mode of the air conditioner indoor set among the prior art has been solved, and then has reached the group control mode of simplifying the air conditioner indoor set, has improved control accuracy's effect.
Description
Technical field
The utility model relates to air-conditioner field, in particular to a kind of group control circuit of air conditioner room unit.
Background technology
In air-conditioner multi-connected machine system, need to divide into groups to control to many indoor sets under system.Generally, when all indoor sets are at same controller local area network (Controller Area Network, be called for short CAN) time, indoor set is divided into groups, because network attribute is the same, cannot distinguish grouping indoor set characteristic, therefore need to increase many group networks, to reach grouping, control object, as shown in Figure 1, be schematically illustrated in network 1, network 2 and network 3 times by indoor set 1 to 3 groups of indoor set 9 layerings, and then by network 1, network 2 and network 3 situation about controlling of dividing into groups.This kind of mode is to the network equipment, and the communication resource requires higher, and circuit design cost is high, and network control is comparatively complicated, and is unfavorable for extension of network.
Problem for the grouping control mode more complicated of air conditioner room unit in correlation technique, not yet proposes effective solution at present.
Utility model content
Main purpose of the present utility model is to provide a kind of group control circuit of air conditioner room unit, to solve the problem of the grouping control mode more complicated of air conditioner room unit in prior art.
According to the utility model, provide a kind of group control circuit of air conditioner room unit.
According to the group control circuit of air conditioner room unit of the present utility model, comprise: packet circuit, is connected with described indoor set, for described indoor set is divided into groups; Telecommunication circuit, is connected with described packet circuit, for transport address, obtains order to described packet circuit, and by described packet circuit, receives the grouping information of described indoor set; And control circuit, be connected with described telecommunication circuit, for sending described address acquisition order, receive described grouping information, and control described indoor set according to described grouping information.
Further, described packet circuit comprises: communication bus, is connected with described indoor set; Handover module, is connected with described communication bus; And communication loop, be connected between described handover module and described telecommunication circuit.
Further, described communication bus comprises the first communication interface and second communication interface, wherein, described handover module comprises: the first dpdt relay, wherein, the first switch contact of described the first dpdt relay is connected between described the first communication interface and the first end of described communication loop, and the second switch contact of described the first dpdt relay is connected between the second end of described the first communication interface and described communication loop; The second dpdt relay, wherein, the first switch contact of described the second dpdt relay is connected between described second communication interface and the first end of described communication loop, and the second switch contact of described the second dpdt relay is connected between the second end of described second communication interface and described communication loop; The first FET, is connected with the control coil of described the first dpdt relay; And second FET, be connected with the control coil of described the second dpdt relay.
Further, described communication loop also comprises the first resistance, the second resistance and wire jumper, wherein, the first end of the first end of described the first resistance and described the second resistance is all connected to the second end of described communication loop by described wire jumper, and the second end of described the first resistance and the second end of described the second resistance are all connected to the first end of described communication loop.
Further, described packet circuit also comprises: protection chip, is connected between the first end of described communication loop and the second end of described communication loop.
Further, described packet circuit also comprises: the first electric capacity, is connected between the first end and signal ground of described communication loop; And second electric capacity, be connected between second end and described signal ground of described communication loop.
Further, described telecommunication circuit comprises: transceiver, is connected with described packet circuit; And isolated from power chip, be connected between described transceiver and described control circuit.
In the utility model, adopt the group control circuit of the air conditioner room unit with following structure: packet circuit, is connected with described indoor set, for described indoor set is divided into groups; Telecommunication circuit, is connected with described packet circuit, for transport address, obtains order to described packet circuit, and by described packet circuit, receives the grouping information of described indoor set; And control circuit, be connected with described telecommunication circuit, for sending described address acquisition order, receive described grouping information, and control described indoor set according to described grouping information.By packet circuit is set, realized when indoor set is divided into groups, without increasing new network, reduced the requirement to the network equipment and the communication resource, correspondingly reduced the complexity that grouping is controlled, solve the problem of the grouping control mode more complicated of air conditioner room unit in prior art, and then reached the grouping control mode of simplification air conditioner room unit, the effect of raising control accuracy.And, due to the requirement having reduced the network equipment and the communication resource, thereby also reached the effect that reduces circuit design cost.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the grouping control topology figure according to the air conditioner room unit of prior art;
Fig. 2 is according to the schematic diagram of the group control circuit of the air conditioner room unit of the utility model embodiment;
Fig. 3 is the grouping control topology figure according to the air conditioner room unit of the utility model embodiment;
Fig. 4 is according to the circuit diagram of packet circuit in the group control circuit of the air conditioner room unit of the utility model embodiment;
Fig. 5 is the schematic diagram utilizing according to packet circuit divides into groups to indoor set in the group control circuit of the air conditioner room unit of the utility model embodiment; And
Fig. 6 is according to the circuit diagram of telecommunication circuit in the group control circuit of the air conditioner room unit of the utility model embodiment.
The specific embodiment
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the utility model protection.
It should be noted that, the term " first " in description of the present utility model and claims and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, and needn't be for describing specific order or precedence.The data that should be appreciated that such use suitably can exchanged in situation, so as embodiment of the present utility model described herein can with except diagram here or describe those order enforcement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, for example, those steps or unit that the process that has comprised series of steps or unit, method, system, product or equipment are not necessarily limited to clearly list, but can comprise clearly do not list or for these processes, method, product or equipment intrinsic other step or unit.
In the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
According to the utility model embodiment, a kind of group control circuit of air conditioner room unit is provided, below the group control circuit of air conditioner room unit that the utility model embodiment is provided do concrete introduction:
Fig. 2 is according to the schematic diagram of the group control circuit of the air conditioner room unit of the utility model embodiment, as shown in Figure 2, the group control circuit of the air conditioner room unit that the utility model embodiment provides mainly comprises packet circuit 10, telecommunication circuit 20 and control circuit 30, wherein:
Packet circuit 10 is connected with indoor set, and for indoor set is divided into groups, wherein, the quantity of indoor set is a plurality of, and each indoor set is all connected with packet circuit 10.
Telecommunication circuit 20 is connected with packet circuit 10, for transport address, obtain order to packet circuit 10, and by the grouping information of packet circuit 10 reception indoor sets, wherein, the IP address of address acquisition order for obtaining indoor set, packet circuit 10 is after receiving address acquisition order, obtain the IP address of indoor set, because 10 pairs of indoor sets of packet circuit divide into groups, so, transmission path in the IP address of the indoor set on the same group is not different, transmission path in the IP address of the indoor set on the same group is mutually identical, therefore, by transport address, obtain order to packet circuit 10, obtain the IP address of indoor set, can Obtaining Accurate to the grouping information of indoor set.
Control circuit 30 is connected with telecommunication circuit 20, be used for sending address acquisition order, receive grouping information, and control indoor set according to grouping information, wherein, control circuit 30 according to grouping information to the indoor set mode of controlling of dividing into groups, identical with the mode of any control of divide into groups in prior art, repeat no more herein.
Fig. 3 is the group control circuit that utilizes the air conditioner room unit in Fig. 2 to the air conditioner room unit topological diagram of controlling that divides into groups, as shown in Figure 3, utilize the group control circuit of the air conditioner room unit that the utility model embodiment provides, by packet circuit is set, realized when indoor set is divided into groups, without increasing new CAN network, reduced the requirement to the network equipment and the communication resource, correspondingly reduced the complexity that grouping is controlled, solved the problem of the grouping control mode more complicated of air conditioner room unit in prior art, and then reached the grouping control mode of simplifying air conditioner room unit, improve the effect of control accuracy.And, due to the requirement having reduced the network equipment and the communication resource, thereby also reached the effect that reduces circuit design cost.
Fig. 4 is according to the circuit diagram of packet circuit in the group control circuit of the air conditioner room unit of the utility model embodiment, as shown in Figure 4, in the group control circuit of the air conditioner room unit providing at the utility model embodiment, packet circuit 10 mainly comprises communication bus 11, handover module 12 and communication loop 13, wherein:
Communication bus 11 is connected with indoor set, particularly, communication bus 11 comprises the first communication interface CN1 and second communication interface CN2, and the first communication interface CN1 and second communication interface CN2 are the communication bus interface of different grouping indoor set, connects the indoor set of concrete grouping.
Handover module 12 is connected with communication bus 11, particularly, handover module 12 mainly comprises two-way relay switch and controls the FET of every road relay switch, wherein, the first switch contact K6 of the first dpdt relay 121 in two-way relay switch is connected between the first communication interface CN1 and the first end of communication loop 13, and the second switch contact K12 of the first dpdt relay 121 is connected between the first communication interface CN1 and the second end of communication loop 13.The first switch contact K11 of the second dpdt relay 122 in two-way relay switch is connected between second communication interface CN2 and the first end of communication loop 13, and the second switch contact K10 of the second dpdt relay 122 is connected between second communication interface CN2 and the second end of communication loop 13.The first FET Q4 is connected with the control coil of the first dpdt relay 121, this first FET Q4 is for controlling the triode of the first dpdt relay 121, the base stage of the first FET Q4 is connected to LINK A-RH by resistance R 23, LINK A-RH is the conducting triggering level of the first FET Q4, for whether control the switching of the first dpdt relay 121 by controlling the conducting of the first FET Q4, the colelctor electrode of the first FET Q4 is by diode D6 connection+12V voltage.The second FET Q3 is connected with the control coil of the second dpdt relay 122, this second FET Q3 is for controlling the triode of the second dpdt relay 122, the base stage of the second FET Q3 is connected to LINK B-RH by resistance R 24, LINK B-RH is the conducting triggering level of the second FET Q3, for whether control the switching of the second dpdt relay 122 by controlling the conducting of the second FET Q3, the colelctor electrode of the second FET Q3 is by diode D7 connection+12V voltage.
Fig. 5 is the schematic diagram that utilizes the packet circuit in Fig. 4 to divide into groups to indoor set, as shown in Figure 5, when proper communication, two triodes are controlled the adhesive simultaneously of two relays, when needs divide into groups to indoor set, control a road relay adhesive, another road disconnects, and the indoor set being connected with the relay of adhesive is divided into groups, after having divided into groups, control another road relay adhesive, originally the relay of adhesive disconnects, and realizes the indoor set being connected with another road relay is divided into groups.
Communication loop 13 is connected between handover module 12 and telecommunication circuit 20, particularly, as shown in Figure 4, this communication loop 13 mainly comprises resistance R on the first end that is arranged on communication loop 13 7 and is arranged on the resistance R 49 on the second end of communication loop 13, the CAN communication loop consisting of between indoor sets and group control circuit resistance R 7 and resistance R 49.
Preferably, communication loop 13 also comprises the first resistance R 67, the second resistance R 68 and wire jumper CN3, wherein, the first end of the first end of the first resistance R 67 and the second resistance R 68 is all connected to the second end of communication loop 13 by wire jumper CN3, and the second end of the second end of the first resistance R 67 and the second resistance R 68 is all connected to the first end of communication loop 13.
By the first resistance R 67, the second resistance R 68 and wire jumper CN3 are set in communication loop 13, utilize the first resistance R 67 with the second resistance R 68 as communicating by letter build-out resistor, whether wire jumper CN3 is used for selecting access communications build-out resistor in communication loop 13, if communication distance is closer, access communications build-out resistor not, if the long communication distance that makes of connection line is relatively far away, need access communications build-out resistor, with the decay of compensation communication data in transmitting procedure, improve transfer of data precision.
Further preferably, in the utility model embodiment, packet circuit 10 also comprises protection chip 14, this protection chip 14 is connected between the first end of communication loop 13 and the second end of communication loop 13, particularly, protection chip 14 can be Transient Suppression Diode (Transient Voltage Suppressor, be called for short TVS), by be set to the two-way TVS protection chip of CAN bus design in packet circuit 10, in the bus of CAN, first signal will enter telecommunication circuit 20 after TVS protection again, can in high-speed CAN bus, improve electromagnetic interference (Electro-Magnetic Interference, be called for short EMI) resistivity and antistatic capacity, in the utility model embodiment, protection chip 14 can adopt NUP2105 chip.
In addition, packet circuit 10 also comprises that the first capacitor C 70 and the second capacitor C 98, the first capacitor C 70 are connected between the first end and signal ground of communication loop 13, and the second capacitor C 98 is connected between second end and signal ground of communication loop 13.The first capacitor C 70 and the second capacitor C 98 are carried out filtering processing for the differential signal that telecommunication circuit 20 is transmitted, differential signal is the signal after 20 pairs of the telecommunication circuits CAN level signal from control circuit 30 is changed, and this differential signal is for communicating with indoor set.
Fig. 6 is according to the circuit diagram of telecommunication circuit in the group control circuit of the air conditioner room unit of the utility model embodiment, as shown in Figure 6, telecommunication circuit 20 mainly comprises CAN transceiver 21 and isolated from power chip 22, wherein, CAN transceiver 21 is connected with packet circuit 10, for the CAN level signal from control circuit 30 is converted to differential signal, by packet circuit 10, transfers to indoor set.Isolated from power chip 22 is connected between CAN transceiver 21 and control circuit 30; power supply for isolation control circuit 30 with CAN transceiver 21; make well to protect mainboard and other circuit of control circuit 30 when bus occurs under extreme case, increase antijamming capability and the reliability of integrated communication.
Wherein, isolated from power chip 22 is connected with the CAN_TX_HR of control circuit 30, be used for receiving the data that send from control circuit 30, isolated from power chip 22 is connected with the CAN_RX_HR of control circuit 30, be used for sending data to control circuit 30,5V-CAN is actual is insulating power supply+5V, and C72 is power supply filter capacitor over the ground.
Particularly, CAN transceiver 21 can adopt IC SN65HVD256 chip, isolated from power chip 22 can adopt IC ISO7321 chip, the object of isolated from power chip 22 is that 3.3V level signal is changed into independent 5V level signal, therefore pin INA and OUTA are corresponding relations, just level is different, OUTC is corresponding with INC, actual being equal to is connected the RXD pin of CAN transceiver 21 with CAN-RX_HR, the TXD pin of CAN transceiver 21 is connected with CAN-TX_HR, is the middle isolated from power conversion of having carried out.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a group control circuit for air conditioner room unit, is characterized in that, comprising:
Packet circuit (10), is connected with described indoor set, for described indoor set is divided into groups;
Telecommunication circuit (20), is connected with described packet circuit (10), for transport address, obtains order to described packet circuit, and by described packet circuit (10), receives the grouping information of described indoor set; And
Control circuit (30), is connected with described telecommunication circuit (20), for sending described address acquisition order, receives described grouping information, and controls described indoor set according to described grouping information.
2. group control circuit according to claim 1, is characterized in that, described packet circuit (10) comprising:
Communication bus (11), is connected with described indoor set;
Handover module (12), is connected with described communication bus (11); And
Communication loop (13), is connected between described handover module (12) and described telecommunication circuit (20).
3. group control circuit according to claim 2, is characterized in that, described communication bus (11) comprises the first communication interface (CN1) and second communication interface (CN2), and wherein, described handover module (12) comprising:
The first dpdt relay (121), wherein, the first switch contact of described the first dpdt relay (121) is connected between described the first communication interface (CN1) and the first end of described communication loop (13), and the second switch contact of described the first dpdt relay (121) is connected between described the first communication interface (CN1) and the second end of described communication loop (13);
The second dpdt relay (122), wherein, the first switch contact of described the second dpdt relay (122) is connected between described second communication interface (CN2) and the first end of described communication loop (13), and the second switch contact of described the second dpdt relay (122) is connected between described second communication interface (CN2) and the second end of described communication loop (13);
The first FET (Q4), is connected with the control coil of described the first dpdt relay (121); And
The second FET (Q3), is connected with the control coil of described the second dpdt relay (122).
4. group control circuit according to claim 3, it is characterized in that, described communication loop (13) also comprises the first resistance (R67), the second resistance (R68) and wire jumper (CN3), wherein, the first end of the first end of described the first resistance (R67) and described the second resistance (R68) is all connected to the second end of described communication loop (13) by described wire jumper (CN3), and the second end of the second end of described the first resistance (R67) and described the second resistance (R68) is all connected to the first end of described communication loop (13).
5. group control circuit according to claim 3, is characterized in that, described packet circuit (10) also comprises:
Protection chip (14), is connected between the first end of described communication loop (13) and the second end of described communication loop (13).
6. group control circuit according to claim 3, is characterized in that, described packet circuit (10) also comprises:
The first electric capacity (C70), is connected between the first end and signal ground of described communication loop (13); And
The second electric capacity (C98), is connected between second end and described signal ground of described communication loop (13).
7. according to the group control circuit described in any one in claim 1 to 6, it is characterized in that, described telecommunication circuit (20) comprising:
CAN transceiver (21), is connected with described packet circuit (10); And
Isolated from power chip (22), is connected between described CAN transceiver (21) and described control circuit (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311163.7U CN203869260U (en) | 2014-06-11 | 2014-06-11 | Grouping control circuit of air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311163.7U CN203869260U (en) | 2014-06-11 | 2014-06-11 | Grouping control circuit of air conditioner indoor unit |
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| CN203869260U true CN203869260U (en) | 2014-10-08 |
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| CN201420311163.7U Expired - Fee Related CN203869260U (en) | 2014-06-11 | 2014-06-11 | Grouping control circuit of air conditioner indoor unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318485A (en) * | 2014-06-11 | 2016-02-10 | 珠海格力电器股份有限公司 | Grouping control circuit and method for indoor unit of air conditioner |
| CN105353678A (en) * | 2015-11-17 | 2016-02-24 | 珠海格力电器股份有限公司 | CAN bus communication isolation circuit and method |
| CN107525219A (en) * | 2017-07-31 | 2017-12-29 | 广东美的暖通设备有限公司 | Control method, control system and line control machine |
| WO2019196465A1 (en) * | 2018-04-13 | 2019-10-17 | 珠海格力电器股份有限公司 | Networking method, device and system for air conditioning system, and signal transmission method and device |
-
2014
- 2014-06-11 CN CN201420311163.7U patent/CN203869260U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318485A (en) * | 2014-06-11 | 2016-02-10 | 珠海格力电器股份有限公司 | Grouping control circuit and method for indoor unit of air conditioner |
| CN105318485B (en) * | 2014-06-11 | 2018-01-23 | 珠海格力电器股份有限公司 | Grouping control circuit and method for indoor unit of air conditioner |
| CN105353678A (en) * | 2015-11-17 | 2016-02-24 | 珠海格力电器股份有限公司 | CAN bus communication isolation circuit and method |
| CN105353678B (en) * | 2015-11-17 | 2017-12-26 | 珠海格力电器股份有限公司 | CAN bus communication isolation circuit and method |
| CN107525219A (en) * | 2017-07-31 | 2017-12-29 | 广东美的暖通设备有限公司 | Control method, control system and line control machine |
| WO2019024527A1 (en) * | 2017-07-31 | 2019-02-07 | 广东美的暖通设备有限公司 | Control method, control system and wire controller |
| CN107525219B (en) * | 2017-07-31 | 2020-01-07 | 广东美的暖通设备有限公司 | Control method, control system and wire controller |
| WO2019196465A1 (en) * | 2018-04-13 | 2019-10-17 | 珠海格力电器股份有限公司 | Networking method, device and system for air conditioning system, and signal transmission method and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20210611 |