Multi-connected air conditioner hot-water unit

[0030] Example one

[0031] figure 1 This is a structural diagram of a multi-connected air-conditioning and hot water unit provided in an embodiment of this application.

[0032] Such as figure 1 As shown, the multi-connected air conditioning and hot water unit provided in this embodiment includes an outdoor unit 10, a plurality of indoor units 20, and a communication bus 30.

[0033] The outdoor unit 10 is an outdoor unit located outdoors, and the plurality of indoor units 20 include at least one indoor air conditioner 21, a hot water generator 22 and a hot water adapter 23.

[0034] The outdoor unit 10 is connected to the communication bus 30 and can output data to or receive data from the communication bus 30, and multiple indoor units are also respectively connected to the communication bus 30, and can also output data to the bus 30 Or receive data from the communication bus 30.

[0035] The communication bus 30 in this embodiment is preferably a CAN (Controller Area Network, Controller Area Network) bus.

[0036] It can be seen from the above technical solutions that this embodiment provides a multi-connected air-conditioning and hot water unit, which includes an outdoor unit and multiple indoor units, and also includes a communication bus connected to the outdoor unit and the multiple indoor units, thereby connecting The multi-connected air-conditioning and hot water unit is connected to a network with a bus structure. Since the communication bus allows communication between the outdoor unit and multiple indoor units, and also allows communication between multiple indoor units, the multi-connected The air-conditioning water heater group can realize the mutual communication between the indoor units, so as to facilitate the better cooperation of the various parts.

[0037] figure 2 It is a schematic diagram of the linkage communication between the hot water generator and the indoor air conditioner.

[0038] Such as figure 2 As shown, the indoor air conditioner 21 is provided with an indoor air conditioner wire controller 211, which is connected through an HBS (HomeBusSystem, home bus system) network 40; the hot water generator 22 is provided with a hot water generator The wire controller 221 is also connected to the hot water generator 22 through the HBS network 40.

[0039] The hot water generator wire controller 221 communicates with the hot water generator 22 through the HBS network 40, and the room air conditioner wire controller 211 also interacts with the room air conditioner 21 through the HBS network 40 to control the room air conditioner 21 and hot water generation The priority of the hot water generator 22; the hot water generator 22 and the indoor air conditioner 21 exchange information via the CAN network 31; this embodiment preferably has the priority of the indoor air conditioner 21 higher than the priority of the hot water generator 22, that is, the indoor air conditioner 21. When the working capacity of the outdoor unit 10 is insufficient, the hot water generator 22 can control itself to reduce the working intensity when the working capacity of the outdoor unit 10 is insufficient.

[0040] In the design of linkage communication, the corresponding network address of the room air conditioner 21 that is related to the hot water generator 22 is set through the hot water generator wire controller 221, and the room air conditioner wire controller 211 can also be set with the room air conditioner. 21 has the corresponding network addresses of the hot water generator 22 that are related to each other, so that the hot water generator 22 and the indoor air conditioner 21 can be bound to each other, and provide a basis for linkage communication. The instant hot water generator 22 and the room air conditioner 21 can receive and send related data through the corresponding network address, such as the switch status, water tank water temperature, floor heating water temperature, indoor environment temperature, system operation mode, etc., and then pass their own Control logic operation, output the required control information, such as the heating demand signal of the water tank, the on-off signal of the floor heating, the opening and closing signal of the water valve in the system, etc., so as to realize the linkage communication.

[0041] image 3 The schematic diagram of the linkage communication between the hot water generator and the outdoor unit.

[0042] Such as image 3 As shown, the hot water generator 21 receives the relevant data of the indoor air conditioner (not shown), and combines its own control logic operation, and the obtained control information related to the outdoor unit 10 interacts with the outdoor unit 10 through the CAN network 31 . The outdoor unit 10 is based on the received information of the hot water generator 22 and the indoor air conditioner, such as indoor ambient temperature, floor heating water temperature, system on/off, water tank water temperature, internal fan speed, etc., according to its own control logic calculations to obtain Control the control signals of the hot water generator 22 and the room air conditioner 21, such as turning on the electric auxiliary heating of the water tank, the running gear of the water pump, the opening of the electronic expansion valve, the system operation mode, the opening and closing of the refrigerant flow valve, etc., so as to realize the hot water Effective linkage communication between the generator 21 and the outdoor unit 10;

[0043] Example two

[0044] Figure 4 This is a structural diagram of a multi-connected air conditioning and hot water unit provided by another embodiment of the application.

[0045] Such as Figure 4 As shown, the multi-unit air-conditioning and hot water unit provided in this embodiment is based on the previous embodiment with a floor heating valve and a floor heating heater (not shown). The floor heating valve is used to connect the hot water generator 22 and the floor heating. Coil (not shown). The floor heating valve 24 is connected to the CAN bus 31.

[0046] Set the network address correspondence of the indoor air conditioner A and the floor heating valve A through the water heater wire controller (not shown), where the two are installed in room A, and set the network address correspondence of the indoor air conditioner B and the floor heating valve B, where both are installed In room B, by receiving information from room air conditioner A and room air conditioner B, they control floor heating valve A and floor heating valve B respectively; when the entire network starts running, hot water generator 22 receives room air conditioner A and room air conditioner B The power on/off status, operating mode, indoor environment temperature, and network address of the room air conditioner, and control the hot water generation according to the on/off status, operating mode, indoor ambient temperature and network address of the room air conditioner A and room air conditioner B The operating status of the heater and the opening and closing of floor heating valve A and floor heating valve B.

[0047] When the outdoor unit 10 and the hot water generator 22 receive that the indoor ambient temperature of the indoor air conditioner A and the indoor air conditioner B is very different from the set temperature, or exceeds a certain threshold, that is, the outdoor unit 10 is unable to meet the thermal requirements. The floor heating capacity of the water generator 22 is required to control the floor heating electric heater to start working. The threshold value is obtained according to experiments and calculations. At the same time, the floor heating electric heating flag is sent to the outdoor unit 10 to control the floor heating valve A and the floor heating valve B to open. , Can effectively ensure the orderly operation of the hot water generator 22 and the outdoor unit 10, and can fully utilize the resources of the outdoor unit.

[0048] When it is cold in winter and indoor heating is required, the hot water generator line controller 221 controls the operation of the hot water generator 22, the outdoor unit 10 and the indoor air conditioner, and receives the running status and corresponding parameters output by the indoor air conditioner in real time , Such as indoor temperature, indoor humidity and set temperature, etc.; if the difference between the indoor temperature and the set temperature is large, the floor heating valve is controlled to open, and heat is supplied together; if the floor heating valve is opened, the temperature difference is still large after the floor heating starts heating. Turn on electric heating.

[0049] A wire controller (including the hot water generator wire controller 221 or the room air conditioner wire controller 211) is used to control the priority of the indoor unit 20 such as the hot water generator 22 and the room air conditioner 21. Generally, it is preferable to control the indoor air conditioner 21 with higher priority. The outdoor unit 10 and the hot water generator 22 receive the data of the indoor air conditioner 21 in real time. When the power of the outdoor unit 10 cannot satisfy the indoor air conditioner 21 and the hot water generator 22 at the same time At this time, the indoor air conditioner 21 is guaranteed to work first, that is, the indoor unit 20 with higher priority is satisfied to run, and the hot water generator 22 automatically reduces the working capacity, thereby consuming less power. Of course, the priority of the hot water generator 22 can also be set to be higher, and at this time, the hot water generator 22 is given priority to work.

[0050] Example three

[0051] Figure 5 This is a structural diagram of a multi-unit air-conditioning water heater set provided by another embodiment of this application.

[0052] Such as Figure 5 As shown, the multi-unit air-conditioning and hot water unit provided in this embodiment is based on the previous embodiment with a solar water heating device 50 added.

[0053] The solar water heater 50 is in communication with the hot water generator 22 and is signal-connected to the CAN bus 31, which is used to obtain hot water from solar energy and supplement the hot water generator 22 accordingly. The connection via the CAN bus 22 can Ensure that it works under unified control and coordination.

[0054] In order to ensure the normal operation of the solar water heating device 50, an electric heater (not shown) can be added to the solar water heating device 50 to protect the safety when working in low-temperature areas and avoid freezing and cracking.