Integrated air conditioner and control method and system thereof

Abstract

The present application discloses an integrated air conditioner and its control method and system, which are applied in the field of air conditioning technology. The integrated air conditioner includes: an evaporator, a condenser with a water distribution groove on the top to receive condensed water from the evaporator, a heat dissipation water pump, a water collector, a water inlet valve, a pressure sensor, and a controller; the water in the water distribution groove flows to the condenser to evaporate and dissipate heat, and the remaining water flows to the water collector; the control method of the integrated air conditioner is applied to the controller, including: after entering the cooling mode, when the condenser pipe pressure is greater than the first pressure value and the water level of the water collector is higher than the first water level, the heat dissipation water pump is enabled to transport the water in the water collector to the water distribution groove to dissipate heat for the condenser; when the water level of the water collector is not higher than the first water level, the water inlet valve is first opened to allow water to flow in and then the heat dissipation water pump is enabled; when the condenser pipe pressure is less than the second pressure value, the heat dissipation water pump is turned off. The application of the present application scheme avoids the inconvenience of drainage and the low utilization rate of water resources, and improves the energy efficiency and operating temperature range of the whole machine.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an integrated air conditioner and a control method and system thereof. Background Technology

[0002] At present, integrated precision air conditioners have been used in more and more scenarios. Integrated precision air conditioners adopt an integrated design of indoor and outdoor units, which reduces installation costs for users, does not require pipe installation, and has a good overall appearance, high integration, and good anti-theft effect.

[0003] However, the integrated air conditioners currently on the market have the following main problems: First, when the whole machine is installed, the drain pipe must be connected to a suitable place for unobstructed drainage. In some actual scenarios, it may be inconvenient to drain the water or there may be safety hazards in drainage. Second, the whole machine has high power and low energy efficiency. Third, the operating temperature range of the whole machine is narrow. In the case of poor ventilation and heat dissipation or high temperature environment, the system high pressure alarm is prone to occur, resulting in consequences such as shutdown of the whole machine. Fourth, when cooling, the whole machine needs to discharge condensed water on one side and introduce water from the outside on the other side, resulting in insufficient utilization of water resources.

[0004] To sum up, how to effectively design an integrated air conditioner to avoid drainage difficulties and low water resource utilization, reduce the power of the whole machine, and improve the energy efficiency and operating temperature range of the whole machine is a technical problem that technicians in this field need to solve urgently. SUMMARY OF THE INVENTION

[0005] The purpose of the present invention is to provide an integrated air conditioner and a control method and system thereof, so as to effectively design the integrated air conditioner, avoid the inconvenience of drainage and low water resource utilization, reduce the power of the whole machine, and improve the energy efficiency and operating temperature range of the whole machine.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A control method for an integrated air conditioner, the integrated air conditioner comprising: an evaporator, a condenser with a water distribution groove on the top, for receiving condensed water precipitated from the evaporator through the water distribution groove, a heat dissipation water pump, a water collector, a water inlet valve for connecting to an external water source, a pressure sensor for detecting the pressure of a condenser tube in the condenser, and a controller; the water distribution groove is provided with an opening, so that after the water in the water distribution groove reaches a set height, it flows along the opening to the condenser to take away heat by evaporation, and the remaining condensed water that has not evaporated flows into the water collector; the control method for the integrated air conditioner is applied to the controller, comprising:

[0008] Judge whether the refrigeration conditions are met;

[0009] If the refrigeration condition is satisfied, enter the refrigeration mode;

[0010] After entering the refrigeration mode, determine whether the pressure of the condenser tube is greater than a preset first pressure value;

[0011] If it is greater than the first pressure value, determine whether the water level in the water collector is higher than the first water level;

[0012] If it is higher than the first water level, activate the radiator water pump to deliver the water in the water collector to the water distribution tank through the radiator water pump to dissipate heat for the condenser;

[0013] If it is not higher than the first water level, open the water inlet valve to let water in, and after the water inlet is completed, activate the radiator water pump to deliver the water in the water collector to the water distribution tank through the radiator water pump to dissipate heat for the condenser;

[0014] When it is determined that the pressure of the condenser tube is less than a preset second pressure value, turn off the radiator water pump; wherein, the second pressure value is less than the first pressure value.

[0015] Preferably, it further includes:

[0016] After the water inlet valve is opened to let water in for a first duration, when the water inlet valve still has not completed the water inlet, determine that there is a water inlet failure of the water inlet valve;

[0017] Wherein, when it is detected that the water level in the water collector is higher than the second water level, or when it is detected that the water level in the water collector is higher than the first water level and the duration exceeds a second duration, determine that the water inlet is completed; the second water level is higher than the first water level.

[0018] Preferably, it further includes:

[0019] After entering the refrigeration mode, when it is detected that the water level in the water collector is higher than the second water level and the duration exceeds a third duration, control the rotation speed of the condensation fan of the condenser to a fixed first rotation speed;

[0020] After the condensation fan runs continuously at a fixed first rotation speed for a sixth duration, determine whether the pressure of the condenser tube is greater than a preset first pressure value;

[0021] If it is not greater than the first pressure value, control the condensation fan to stop rotating;

[0022] When it is detected that the water level in the water collector is not higher than the second water level and the duration exceeds a fourth duration, control the condensation fan to resume the default state of adjusting the speed based on the pressure of the condenser tube;

[0023] Wherein, the second water level is higher than the first water level.

[0024] Preferably, the first rotational speed is the lowest rotational speed of the condensation fan.

[0025] Preferably, it further includes:

[0026] After controlling the condensation fan to stop rotating, when the water level of the water collector is still higher than the second water level after a fifth time period, it is determined that the heat dissipation water pump fails; wherein, the fifth time period is greater than the fourth time period.

[0027] Preferably, it further includes:

[0028] When it is detected that the pressure of the condensation pipe is greater than a preset system protection pressure value, control the rotational speed of the condensation fan of the condenser to be a fixed maximum rotational speed;

[0029] Wherein, the system protection pressure value is greater than the first pressure value.

[0030] Preferably, it further includes:

[0031] When it is determined that the condition for exiting the refrigeration mode is established, exit the refrigeration mode;

[0032] Wherein, when the return air temperature is greater than the first temperature value, it is determined that the refrigeration condition is established, and when the return air temperature is less than the second temperature value, it is determined that the condition for exiting the refrigeration mode is established; the first temperature value = x + a, the second temperature value = x - b, x represents the target temperature value set by the user, and both a and b are preset parameters and are both non - negative numbers.

[0033] Preferably, the integrated air conditioner further includes a humidification water pump and a humidifier. The water collector is connected to the humidifier to collect the water generated by humidification and the remaining humidification water of the humidifier. The control method of the integrated air conditioner further includes:

[0034] Judge whether the humidification condition is established;

[0035] If the humidification condition is established, enter the humidification mode;

[0036] After entering the humidification mode, judge whether the water level of the water collector is higher than the first water level;

[0037] If it is higher than the first water level, enable the humidification water pump to deliver the water in the water collector to the humidifier for humidification through the humidification water pump;

[0038] If it is not higher than the first water level, open the water inlet valve to fill water, and after the water filling is completed, enable the humidification water pump to deliver the water in the water collector to the humidifier for humidification.

[0039] A control system for an integrated air conditioner, the integrated air conditioner comprising: an evaporator, a condenser with a water distribution tank at the top for receiving condensed water separated out by the evaporator through the water distribution tank, a water cooling pump, a water collector, a water inlet valve for connecting to an external water source, a pressure sensor for detecting the pressure of the condenser tubes, and a controller; the water distribution tank is provided with openings such that when the water level in the water distribution tank reaches a set height, the water flows down through the openings to the condenser to take away heat by evaporation, and the remaining unevaporated condensed water converges into the water collector; the control system of the integrated air conditioner is applied to the controller and includes:

[0040] A refrigeration condition judgment module for judging whether the refrigeration condition is established. If the refrigeration condition is established, the condenser tube pressure judgment module is triggered;

[0041] The condenser tube pressure judgment module is used for: entering the refrigeration mode. After entering the refrigeration mode, judging whether the pressure of the condenser tubes is greater than a preset first pressure value; if it is greater than the first pressure value, the water collector water level judgment module is triggered;

[0042] The water collector water level judgment module is used for: judging whether the water level in the water collector is higher than a first water level; if it is higher than the first water level, the water cooling pump control module is triggered. If it is not higher than the first water level, the water inlet valve is opened to let water in, and after the water inlet is completed, the water cooling pump control module is triggered;

[0043] The water cooling pump control module is used for: enabling the water cooling pump to transport the water in the water collector to the water distribution tank to dissipate heat for the condenser; when it is judged that the pressure of the condenser tubes is less than a preset second pressure value, the water cooling pump is turned off; wherein, the second pressure value is less than the first pressure value.

[0044] An integrated air conditioner includes the control system of the integrated air conditioner as described above.

[0045] Applying the technical solution provided by the embodiment of the present invention, after the controller determines that the refrigeration condition is established, it can enter the refrigeration mode. After entering the refrigeration mode, when it is determined that the pressure of the condenser tube is greater than the preset first pressure value, it indicates that the pressure of the condenser tube is relatively high at this time. Then, it will further determine whether the water level in the water collector is higher than the first water level. If it is higher than the first water level, it means that there is a certain amount of water stored in the water collector at this time, and the cooling water pump can be enabled to transport the water in the water collector to the water distribution tank through the cooling water pump. The water distribution tank is provided with openings. After the water volume in the water distribution tank reaches the set height, it will flow down through the openings to the condenser, thereby taking away heat through evaporation, and the remaining condensed water that has not evaporated will flow back to the water collector. Correspondingly, when the judgment result is not higher than the first water level, it means that the water stored in the water collector is insufficient at this time, and the water inlet valve can be opened to fill water. After the water filling is completed, the cooling water pump is enabled again to transport the water in the water collector to the water distribution tank to dissipate heat for the condenser. By transporting the water in the water collector to the water distribution tank to dissipate heat for the condenser, it is equivalent to improving the heat exchange efficiency of the condenser, and no additional power consumption will be brought. Therefore, it is beneficial to reduce the overall machine power and improve the overall machine energy efficiency. And because the heat exchange of the condenser is enhanced by the evaporation of the condensed water, the system high pressure value can be significantly reduced, which is beneficial to increasing the operating temperature range of the whole machine.

[0046] In addition, the water distribution tank is arranged at the top of the evaporator and can receive the condensed water separated out by the evaporator. Therefore, the solution of the present application is beneficial to improving the utilization rate of water resources. In addition, since the water in the water collector can be consumed by evaporation, the solution of the present application does not require a specially arranged external drainage pipe, and thus the inconvenient drainage situation in the traditional solution will not occur.

[0047] In summary, the integrated air conditioner of the solution of the present application can avoid the inconvenient drainage situation and the low utilization rate of water resources, and reduces the overall machine power, improves the overall machine energy efficiency and the operating temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0049] Figure 1 It is a schematic structural diagram of an integrated air conditioner in the present invention;

[0050] Figure 2 It is an implementation flowchart of the control method of the integrated air conditioner in the present invention applied to the controller;

[0051] Figure 3 It is an implementation flow chart of a high water consumption mode in a cooling mode in a specific implementation mode of the present invention;

[0052] Figure 4 is another structural schematic diagram of the integrated air conditioner in the present invention;

[0053] Figure 5 is a flowchart of the implementation of the humidification mode in a specific embodiment of the present invention;

[0054] Figure 6 It is a schematic diagram of the structure of the integrated air conditioner control system in the present invention applied to the controller. Specific implementation method

[0055] The core of the present invention is to provide a control method for an integrated air conditioner, which can avoid the inconvenience of drainage and low water resource utilization, reduce the power of the whole machine, and improve the energy efficiency and operating temperature range of the whole machine.

[0056] In order to make the technical personnel in this field better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of an integrated air conditioner in the present invention, Figure 2 This is a flowchart of the implementation of the integrated air conditioner control method in the present invention applied to the controller.

[0058] The integrated air conditioner of the present application may include: an evaporator 10, a condenser 20 with a water distribution groove on the top, which is used to receive condensed water precipitated from the evaporator 10 through the water distribution groove, a heat dissipation water pump 30, a water collector 40, a water inlet valve 50 for connecting to an external water source, a pressure sensor for detecting the pressure of the condenser tube in the condenser 20, and a controller. The water distribution groove is provided with an opening so that the water in the water distribution groove flows along the opening to the condenser 20 after reaching a set height to take away heat by evaporation, and the remaining condensed water that has not evaporated flows into the water collector 40. Of course, Figure 1 The controller and pressure sensor are not shown.

[0059] Figure 2 The control method of the integrated air conditioner may include the following steps:

[0060] ​​​​Step S201: Determine whether the refrigeration condition is satisfied. If the refrigeration condition is satisfied, execute Step S202.

[0061] Step S202: Enter the refrigeration mode.

[0062] Specifically, the specific content of the set refrigeration condition can be set and adjusted as needed. For example, in a specific scenario, the target temperature value set by the user is 25°C, that is, the user hopes the room temperature to be 25°C. Then, the integrated air conditioner of the present application can perform temperature detection. For example, the indoor temperature can be detected through a temperature sensor set at the return air outlet. When the detected ambient temperature is higher than 25°C, it can be determined that the refrigeration condition is satisfied, and then enter the refrigeration mode.

[0063] Also, in a specific embodiment of the present invention, considering that frequently entering / exit the refrigeration mode is not conducive to the safe operation of each device and is also likely to cause waste of electric energy, therefore, the conditions for entering the refrigeration mode and the conditions for exiting the refrigeration mode can be set in a dual-threshold manner. That is, in a specific embodiment of the present invention, it may further specifically include:

[0064] When it is determined that the condition for exiting the refrigeration mode is satisfied, exit the refrigeration mode;

[0065] Among them, when the return air temperature is greater than the first temperature value, it is determined that the refrigeration condition is satisfied. When the return air temperature is less than the second temperature value, it is determined that the condition for exiting the refrigeration mode is satisfied; the first temperature value = x + a, the second temperature value = x - b, where x represents the target temperature value set by the user, and both a and b are preset parameters and are non-negative numbers.

[0066] The return air temperature is the temperature detected at the return air outlet of the air conditioner, and this temperature can be regarded as the detected indoor temperature. Still taking the target temperature value x set by the user as 25°C as an example, for example, a = 2 and b = 2. It can be understood that in other specific scenarios, a and b can have other values, and it can be seen that in this embodiment, if both a and b are set to 0, it is a single-threshold setting method. Of course, in actual applications, a and b generally will not be 0.

[0067] For example, in this embodiment, the detected return air temperature is 30°C, that is, the indoor temperature is 30°C, which is greater than the first temperature value of 27°C. Therefore, it can be determined that the refrigeration condition is met, and then the refrigeration mode is entered. After entering the refrigeration mode, since the target temperature value x set by the user is 25°C, the integrated air conditioner maintains the indoor temperature at around 25°C through feedback refrigeration. In this process, even if the indoor temperature fluctuates, for example, to 26°C or 24°C, since it is not less than the second temperature value of 23°C, the condition for exiting the refrigeration mode is not met, and there will be no frequent entry / exit of the refrigeration mode. Only when the indoor temperature, that is, the return air temperature, is lower than 23°C, will it be determined that the condition for exiting the refrigeration mode is met, and then the refrigeration mode is exited.

[0068] Step S203: After entering the cooling mode, determine whether the pressure of the condenser is greater than a preset first pressure value; if it is greater than the first pressure value, execute step S204.

[0069] After entering the cooling mode, the evaporator 10 is used as a heat-absorbing device, and the condenser 20 is used as a heat-releasing device. Under the control of the controller, it cooperates with other devices in the air conditioner to achieve cooling of the room, so that the temperature in the room is stabilized near the target temperature value set by the user. Since the refrigeration principle is relatively mature, it will not be described here. In the implementation method of the following text of this application, it is described that in the cooling mode, condensed water is used to enhance the heat exchange efficiency of the condenser 20 and improve energy efficiency.

[0070] Specifically, in the solution of the present application, considering that the evaporator 10 will produce condensed water when the air conditioner is cooling, in order to effectively utilize the condensed water, the evaporator 10 and the condenser 20 can be located above and below the whole machine respectively, and the condensed water on the evaporator 10 can be collected in the water receiving tray of the evaporator 10, and then flow through the drainage hole through the pipeline to the water distribution tank on the top of the condenser 20.

[0071] The water distribution tank at the top of the condenser 20 is provided with one or more openings. Therefore, when the water in the water distribution tank reaches the set height, it can flow along the openings to the condenser 20, and the condensed water can take away the heat by evaporation, and the remaining unevaporated condensed water can flow into the water collector 40, that is, the water collector 40 of the present application can dispatch and distribute the water, so that the resource utilization is more sufficient.

[0072] The pressure of the condensing pipe in the condenser 20 can be detected by a pressure sensor. When the pressure of the condensing pipe is greater than a preset first pressure value, it can indicate that the temperature of the refrigerant in the condensing pipe is relatively high, and at this time, heat dissipation for the refrigerant needs to be strengthened. Conversely, when the pressure of the condensing pipe is not greater than the preset first pressure value, it can indicate that the temperature of the refrigerant in the condensing pipe is relatively low, and there is no need to strengthen heat dissipation for the refrigerant, so there is no need to perform subsequent operations such as enabling the cooling water pump 30.

[0073] Step S204: Determine whether the water level in the water collector 40 is higher than the first water level. If it is higher than the first water level, then execute step S205. If it is not higher than the first water level, then execute step S206, and after the water inlet is completed, execute step S205.

[0074] Step S205: Enable the cooling water pump 30 to pump the water in the water collector 40 to the water distribution tank through the cooling water pump 30 to dissipate heat for the condenser 20.

[0075] Step S206: Open the water inlet valve 50 to let water in.

[0076] After it is determined that the pressure of the condensing pipe is greater than the first pressure value, that is, after it is determined that the temperature of the refrigerant in the condensing pipe is relatively high, in the solution of the present application, the cooling water pump 30 is used to pump the water in the water collector 40 to the water distribution tank, so as to dissipate heat for the condenser 20. And it can be understood that the premise for performing this operation is that there is a certain amount of water in the current water collector 40. Therefore, before executing step S205, it is necessary to determine whether the water level in the water collector 40 is higher than the first water level. For example, a corresponding float is set in the water collector 40. When the position of the float is not higher than the first water level, it will cause the corresponding switch in the circuit to be in the off state. Conversely, when the position of the float is higher than the first water level, it will cause the switch to be in the on state. Therefore, the controller can determine whether the water level in the water collector 40 is higher than the first water level based on this. Of course, in other embodiments, other water level detection methods for the water collector 40 can be designed, which does not affect the implementation of the present invention.

[0077] When it is determined that the water level in the water collector 40 is higher than the first water level, it indicates that there is a certain amount of water in the current water collector 40, and the cooling water pump 30 can be directly used to pump water to the water distribution tank of the condenser 20, that is, step S205 can be directly executed. Conversely, when it is determined that the water level in the water collector 40 is not higher than the first water level, it indicates that the water in the current water collector 40 is insufficient, and the water inlet valve 50 needs to be opened to let water in, and after the water inlet is completed, step S205 is executed again. In addition, it should be noted that in practical applications, to ensure the safety of the devices, the water inlet valve 50 and the cooling water pump 30 are usually not enabled at the same time. That is, when the water inlet valve 50 is opened to let water in, the cooling water pump 30 will be closed, and when the water inlet is completed, the cooling water pump 30 will be enabled to pump water.

[0078] After opening the water inlet valve 50 to let water in, there are also multiple ways to determine whether the water inlet is completed. For example, in one implementation, when it is detected that the water level in the water collector 40 is higher than the first water level and has lasted for a certain period of time, it can be determined that the water inlet is completed. Another example is that in one implementation, the water collector 40 is provided with a high water level and a low water level. The high water level is the second water level, and the low water level is the first water level. Then, when it is detected that the water level in the water collector 40 is higher than the second water level, it can also be directly determined that the water inlet is completed.

[0079] In a specific implementation of the present invention, after step S206, it may further include:

[0080] After the water inlet valve 50 has been letting water in for the first duration, when the water inlet valve 50 has not completed the water inlet yet, it is determined that there is a water inlet failure of the water inlet valve 50;

[0081] Among them, when it is detected that the water level in the water collector 40 is higher than the second water level, or when it is detected that the water level in the water collector 40 is higher than the first water level and the duration exceeds the second duration, it is determined that the water inlet is completed; the second water level is higher than the first water level.

[0082] This implementation takes into account that if after the first duration of the water inlet valve 50 letting water in, when the water inlet valve 50 still has not completed the water inlet, it means that the water inlet is abnormal. Therefore, it can be determined that there is a water inlet failure of the water inlet valve 50. For example, due to a malfunction of the water inlet valve 50 itself, or due to a lack of water in the external water source connected to the water inlet valve 50 and other reasons, the situation where the water inlet valve 50 reports an error in this implementation is triggered.

[0083] The specific values of the first duration and the second duration can be set according to needs, but it can be understood that the first duration is usually higher than the second duration.

[0084] Step S207: When it is determined that the pressure in the condenser tube is less than the preset second pressure value, turn off the radiator water pump 30; where the second pressure value is less than the first pressure value.

[0085] When it is determined that the pressure in the condenser tube is less than the preset second pressure value, it means that through the heat dissipation of the condensate water, the pressure in the condenser tube has been reduced a lot. At this time, there is no need to strengthen the heat dissipation of the refrigerant in the condenser 20. That is, at this time, the radiator water pump 30 can be turned off, so that the condenser 20 exchanges heat with the external environment naturally.

[0086] It should be noted that after this application determines that the pressure of the condensate pipe is greater than the preset first pressure value, the subsequent steps are to activate the radiator water pump 30 to transport the water in the water collector 40 to the water distribution tank to dissipate heat from the condenser 20. The trigger condition for turning off the radiator water pump 30 is not that the pressure of the condensate pipe is less than the first pressure value, but rather that the pressure of the condensate pipe is less than a lower second pressure value. Similarly to the description of entering / exit the refrigeration mode mentioned above, a dual-threshold setting is also carried out to avoid the situation of frequently turning on / off the radiator water pump 30, which is beneficial to ensuring the reliable operation of the device.

[0087] In addition, it should be pointed out that step S203 can be executed periodically, that is, after entering the refrigeration mode, it can be periodically determined whether the pressure of the condensate pipe is greater than the preset first pressure value.

[0088] Similarly, step S204 can also be executed periodically. For example, in one scenario, after executing step S204, it is determined that the water level in the water collector 40 is higher than the first water level. Subsequently, as the radiator water pump 30 pumps water, the water level in the water collector 40 decreases. Therefore, when it is determined that the water level in the water collector 40 is not higher than the first water level as time progresses, it is necessary to first open the water inlet valve 50 to let water in and then activate the radiator water pump 30 to pump water, that is, first execute step S206 and then continue to execute step S205.

[0089] Similarly, step S207 can also be executed periodically, that is, as long as it is determined that the pressure of the condensate pipe is less than the second pressure value, the radiator water pump 30 can be turned off.

[0090] In a specific embodiment of the present invention, reference can be made to Figure 3 , and the following steps can also be included:

[0091] Step S301: After entering the refrigeration mode, when it is detected that the water level in the water collector 40 is higher than the second water level and the duration exceeds the third duration, control the rotational speed of the condensate fan of the condenser 20 to a fixed first rotational speed;

[0092] Step S302: After the condensate fan continuously operates at a fixed first rotational speed for the sixth duration, determine whether the pressure of the condensate pipe is greater than the preset first pressure value; if it is still not greater than the first pressure value, then execute step S303.

[0093] Step S303: Control the condensate fan to stop rotating;

[0094] Step S304: When it is detected that the water level in the water collector 40 is not higher than the second water level and the duration exceeds the fourth duration, control the condensate fan to resume the default state of adjusting the speed based on the pressure of the condensate pipe.

[0095] This implementation mode takes into account that after entering the refrigeration mode, the pressure in the condenser tube often exceeds the first pressure value. Therefore, the water in the water collector 40 is pumped by the heat dissipation water pump 30 and delivered to the water distribution tank, that is, the water in the water collector 40 is consumed by evaporation. However, in a small number of cases, the pressure in the condenser tube may always be lower than the first pressure value. At this time, the water in the water collector 40 will continue to accumulate.

[0096] In response to this, in this implementation mode, by controlling the rotation of the condenser fan, the strong water consumption mode in the refrigeration mode can be entered to consume the water in the water collector 40.

[0097] Specifically, after entering the refrigeration mode, when it is detected that the water level in the water collector 40 is higher than the second water level and the duration exceeds the third duration, it indicates that the water level in the water collector 40 is in a high water level state and has lasted for a certain period of time. The present application will then control the rotation speed of the condenser fan of the condenser 20 to a fixed first rotation speed. The specific value of the first rotation speed can be set as needed. However, in order to increase the pressure in the condenser tube, the first rotation speed should be a relatively low value. For example, in a specific implementation mode of the present invention, in order to effectively increase the pressure in the condenser tube, the first rotation speed is the lowest rotation speed of the condenser fan.

[0098] In most cases, after controlling the rotation speed of the condenser fan of the condenser 20 to the fixed first rotation speed, the pressure in the condenser tube will be greater than the first pressure value. Then, referring to the above description of Figure 2 that is, at this time, the pumping of the heat dissipation water pump 30 will be triggered, so that the water in the water collector 40 is finally consumed by evaporation.

[0099] In a small number of cases, after the condenser fan runs continuously at the fixed first rotation speed for a certain duration, that is, after the condenser fan runs continuously at the fixed first rotation speed for the sixth duration, the pressure in the condenser tube may still not be greater than the preset first pressure value. Then, the present application will directly control the condenser fan to stop rotating, so that the pressure in the condenser tube can increase rapidly.

[0100] When it is detected that the water level in the water collector 40 is not higher than the second water level and the duration exceeds the fourth duration, it indicates that the water in the water collector 40 has been effectively consumed. Therefore, the strong water consumption mode in the refrigeration mode can be exited, that is, it returns to the normal refrigeration mode. For example, the fourth duration is set to 3 seconds, that is, it is necessary to detect that the water level in the water collector 40 is not higher than the second water level, and the water level not being higher than the second water level needs to last for 3 seconds before exiting the strong water consumption mode in the refrigeration mode and returning to the normal refrigeration mode.

[0101] In addition, it can be understood that in this embodiment, after detecting that the water level of the water collector 40 is not higher than the second water level, the strong water consumption mode in the refrigeration mode is not immediately exited. Instead, it is required that the water level of the water collector 40 not be higher than the second water level for a certain duration, that is, it needs to last for a fourth duration. This is beneficial to improving the reliability of the solution. That is, if the water level of the water collector 40 does not exceed the second water level for the fourth duration, it indicates that the water level of the water collector 40 has indeed dropped below the second water level, rather than being misdetected due to water level fluctuations, signal interference, or other reasons.

[0102] After returning to the normal refrigeration mode, the condensing fan is in the default state of speed regulation based on the condensing pipe pressure, that is, the rotational speed of the condensing fan is dynamically adjusted based on the condensing pipe pressure, so that the condensing pipe pressure is stabilized near the ideal pressure value or the ideal pressure range.

[0103] In addition, it should be noted that in this embodiment, the condensing fan of the condenser 20 is not directly controlled to stop rotating. Instead, the rotational speed of the condensing fan of the condenser 20 is first controlled to a fixed first rotational speed. This is because if the condensing fan is directly controlled to stop rotating, the pressure of the condensing pipe may suddenly increase and exceed the system protection pressure value. Therefore, the condensing fan is first controlled to operate at a lower rotational speed, and when it is found that the pressure of the condensing pipe cannot be increased, the condensing fan is then controlled to stop rotating.

[0104] Furthermore, in a specific embodiment of the present invention, it may further include:

[0105] When detecting that the pressure of the condensing pipe is greater than the preset system protection pressure value, controlling the rotational speed of the condensing fan of the condenser 20 to a fixed maximum rotational speed; wherein, the system protection pressure value is greater than the first pressure value.

[0106] When detecting that the pressure of the condensing pipe is greater than the preset system protection pressure value, it indicates that the pressure of the condensing pipe has suddenly increased. At this time, there is a safety hazard. Therefore, the rotational speed of the condensing fan of the condenser 20 is immediately controlled to a fixed maximum rotational speed to quickly reduce the pressure of the condensing pipe and ensure the safety of the air conditioner.

[0107] In a specific embodiment of the present invention, it may further include:

[0108] After controlling the condensing fan to stop rotating, when the water level of the water collector 40 is still higher than the second water level after a fifth duration, it is determined that the heat dissipation water pump 30 is faulty. The fifth duration is greater than the fourth duration.

[0109] In this embodiment, considering that after step S303 is executed, if the water level of the water collector 40 is still higher than the second water level for a long time, it can be indicated that the cooling water pump 30 cannot pump water normally. Therefore, it will be determined that the cooling water pump 30 fails. In addition, in some cases, when it is determined that the cooling water pump 30 fails, the compressor will also be stopped to ensure safety. The specific values of the fifth duration and the fourth duration in the above embodiment can be selected as needed. However, it can be understood that the value of the fifth duration should be higher than or much higher than the value of the fourth duration. For example, in the above embodiment, the fourth duration is set to 3 seconds, and the fifth duration in this embodiment can be set to 15 seconds, 30 seconds, 60 seconds, etc. according to actual needs.

[0110] In a specific embodiment of the present invention, reference may be made to Figure 4 , the integrated air conditioner may further include a humidifying water pump 60, a humidifier 70, and the water collector 40 is connected to the humidifier 70 to collect the water generated by humidification and the remaining water after humidification of the humidifier 70. Reference may be made to Figure 5 , the control method of the integrated air conditioner further includes:

[0111] Step S501: Determine whether the humidification condition is satisfied; if the humidification condition is satisfied, execute step S502: Enter the humidification mode;

[0112] Step S503: After entering the humidification mode, determine whether the water level of the water collector 40 is higher than the first water level;

[0113] If it is higher than the first water level, execute step S504: Enable the humidifying water pump 60 to deliver the water in the water collector 40 to the humidifier 70 through the humidifying water pump 60 for humidification;

[0114] If it is not higher than the first water level, execute step S505: Open the water inlet valve 50 to let water in, and after the water inlet is completed, execute step S504: Enable the humidifying water pump 60 to deliver the water in the water collector 40 to the humidifier 70 through the humidifying water pump 60 for humidification.

[0115] In this embodiment, considering that the humidifier 70 will generate water during the humidification process, which is called the water generated by humidification in this application, and there may be remaining water after the humidification of the humidifier 70, which is called the remaining water after humidification in this application. In order to achieve the effective utilization of water resources, in this embodiment, the water collector 40 is connected to the humidifier 70, and both the water generated by humidification and the remaining water after humidification will be collected.

[0116] When it is determined that the humidification condition is satisfied, the humidification mode can be entered. There can be various specific settings for the humidification condition. For example, as in the previous embodiment, the conditions for entering / exit the humidification mode are set in a dual-threshold manner.

[0117] After entering the humidification mode, when the water level in the water collector 40 is higher than the first water level, it indicates that the water collector 40 currently stores a certain amount of water. Therefore, the humidification water pump 60 can be directly activated to transport the water in the water collector 40 to the humidifier 70 through the humidification water pump 60 for humidification. Correspondingly, if the water level in the water collector 40 is not higher than the first water level, the water inlet valve 50 needs to be opened to let water in first, and after the water inlet is completed, the operation in step S504 is then performed.

[0118] In addition, similar to the previous embodiment, when performing step S505, after the water inlet valve 50 has been letting water in for the first duration and the water inlet valve 50 has not completed the water inlet yet, it can be determined that there is a water inlet failure in the water inlet valve 50.

[0119] In this implementation manner, the water generated by humidification and the remaining water after humidification are both collected in the water collector 40. Similarly, the water required for humidification also comes from the water collector 40. Therefore, it can be seen that after this implementation manner is set, the condensed water generated by refrigeration can be consumed through evaporation and humidification methods, that is, the self-production and self-consumption of water resources can be satisfied, so that the whole machine of this application does not need to be specifically connected to a drainage pipeline, simplifying the installation and maintenance.

[0120] Applying the technical solution provided by the embodiment of the present invention, after the controller determines that the refrigeration condition is established, the refrigeration mode can be entered. After entering the refrigeration mode, when it is determined that the pressure in the condenser tube is greater than the preset first pressure value, it indicates that the pressure in the condenser tube is relatively high at this time. Then it will further judge whether the water level in the water collector 40 is higher than the first water level. If it is higher than the first water level, it means that there is a certain amount of water stored in the water collector 40 at this time, and the heat dissipation water pump 30 can be activated to transport the water in the water collector 40 to the water distribution tank through the heat dissipation water pump 30. The water distribution tank is provided with openings. After the water volume in the water distribution tank reaches the set height, it will flow down along the openings to the condenser 20, thereby taking away heat through evaporation, and the remaining condensed water that has not evaporated will flow back to the water collector 40. Correspondingly, when the judgment result is not higher than the first water level, it means that the water stored in the water collector 40 is insufficient at this time. The water inlet valve 50 can be opened to let water in, and after the water inlet is completed, the heat dissipation water pump 30 is then activated to transport the water in the water collector 40 to the water distribution tank to dissipate heat for the condenser 20. By transporting the water in the water collector 40 to the water distribution tank to dissipate heat for the condenser 20, it is equivalent to improving the heat exchange efficiency of the condenser 20 and will not cause additional power consumption. Therefore, it is beneficial to reduce the overall machine power and improve the overall machine energy efficiency. And because the heat exchange of the condenser 20 is enhanced by the evaporation of the condensed water, the system high pressure value can be significantly reduced, which is beneficial to increasing the operating temperature range of the whole machine.

[0121] In addition, a water distribution tank is arranged at the top of the evaporator 10 and can receive the condensed water separated out by the evaporator 10. Therefore, the solution of the present application is beneficial to improving the utilization rate of water resources. In addition, since the water in the water collector 40 can be consumed by evaporation, the solution of the present application does not require a dedicated external drainage pipe to be provided, and thus the inconvenient drainage situation in the traditional solution will not occur.

[0122] In summary, the integrated air conditioner of the solution of the present application can avoid the inconvenient drainage situation and the low utilization rate of water resources, and reduces the overall machine power, improves the overall machine energy efficiency and the operating temperature range.

[0123] Corresponding to the above method embodiment, the embodiment of the present invention also provides a control system for an integrated air conditioner, which can be correspondingly referred to with the above text.

[0124] The integrated air conditioner may include: an evaporator, a condenser with a water distribution tank arranged at the top for receiving the condensed water separated out by the evaporator through the water distribution tank, a water cooling pump, a water collector, a water inlet valve for connecting to an external water source, a pressure sensor for detecting the pressure of the condenser tubes, and a controller; the water distribution tank is provided with openings so that when the water volume in the water distribution tank reaches a set height, it flows down along the openings to the condenser to take away heat by evaporation, and the remaining unevaporated condensed water converges into the water collector. Refer to Figure 6 , the control system of the integrated air conditioner is applied to the controller and includes the following modules:

[0125] A refrigeration condition judgment module 601 for judging whether the refrigeration condition is established. If the refrigeration condition is established, the condenser tube pressure judgment module 602 is triggered;

[0126] The condenser tube pressure judgment module 602 is used for: entering the refrigeration mode, and after entering the refrigeration mode, judging whether the pressure of the condenser tube is greater than a preset first pressure value; if it is greater than the first pressure value, the water collector water level judgment module 603 is triggered;

[0127] The water collector water level judgment module 603 is used for: judging whether the water level of the water collector is higher than the first water level; if it is higher than the first water level, the water cooling pump control module 604 is triggered. If it is not higher than the first water level, the water inlet valve is opened to fill water, and after the water filling is completed, the water cooling pump control module 604 is triggered;

[0128] The water cooling pump control module 604 is used for: enabling the water cooling pump to transport the water in the water collector to the water distribution tank to dissipate heat for the condenser; when it is judged that the pressure of the condenser tube is less than a preset second pressure value, the water cooling pump is turned off; wherein, the second pressure value is less than the first pressure value.

[0129] In a specific embodiment of the present invention, it further includes:

[0130] An inlet valve water inlet fault reporting module, which is used to determine an inlet valve water inlet fault when the water inlet of the inlet valve has not been completed after the inlet valve has been opened for a first duration.

[0131] Wherein, when it is detected that the water level of the water collector is higher than a second water level, or when it is detected that the water level of the water collector is higher than a first water level and the duration exceeds a second duration, it is determined that the water inlet is completed; the second water level is higher than the first water level.

[0132] In a specific embodiment of the present invention, it further includes a strong water consumption execution module, which is used for:

[0133] After entering the refrigeration mode, when it is detected that the water level of the water collector is higher than the second water level and the duration exceeds a third duration, control the rotation speed of the condensation fan of the condenser to a fixed first rotation speed;

[0134] After the condensation fan runs continuously at a fixed first rotation speed for a sixth duration, determine whether the pressure of the condensation pipe is greater than a preset first pressure value;

[0135] If it is not greater than the first pressure value, control the condensation fan to stop rotating;

[0136] When it is detected that the water level of the water collector is not higher than the second water level and the duration exceeds a fourth duration, control the condensation fan to return to the default state of adjusting the speed based on the pressure of the condensation pipe;

[0137] Wherein, the second water level is higher than the first water level.

[0138] In a specific embodiment of the present invention, the first rotation speed is the lowest rotation speed of the condensation fan.

[0139] In a specific embodiment of the present invention, it further includes:

[0140] A heat dissipation water pump fault reporting module, which is used to determine a heat dissipation water pump fault when the water level of the water collector is still higher than the second water level after a fifth duration after the strong water consumption execution module controls the condensation fan to stop rotating.

[0141] In a specific embodiment of the present invention, the strong water consumption execution module is further used for:

[0142] When it is detected that the pressure of the condensation pipe is greater than a preset system protection pressure value, control the rotation speed of the condensation fan of the condenser to a fixed highest rotation speed;

[0143] Wherein, the system protection pressure value is greater than the first pressure value.

[0144] In a specific embodiment of the present invention, the refrigeration condition judgment module 601 is further used for:

[0145] When it is determined that the condition for exiting the cooling mode is satisfied, exit the cooling mode;

[0146] Among them, when the return air temperature is greater than the first temperature value, it is determined that the cooling condition is satisfied; when the return air temperature is less than the second temperature value, it is determined that the condition for exiting the cooling mode is satisfied. The first temperature value = x + a, and the second temperature value = x - b, where x represents the target temperature value set by the user, and both a and b are preset parameters and are non-negative numbers.

[0147] In a specific embodiment of the present invention, the integrated air conditioner further includes a humidification water pump, a humidifier, and a water collector is connected to the humidifier to collect the water generated by the humidification of the humidifier and the remaining humidification water. The control system of the integrated air conditioner further includes a humidification module for:

[0148] Judge whether the humidification condition is satisfied;

[0149] If the humidification condition is satisfied, enter the humidification mode;

[0150] After entering the humidification mode, judge whether the water level in the water collector is higher than the first water level;

[0151] If it is higher than the first water level, enable the humidification water pump to transport the water in the water collector to the humidifier through the humidification water pump for humidification;

[0152] If it is not higher than the first water level, open the water inlet valve to fill water, and after the water filling is completed, enable the humidification water pump to transport the water in the water collector to the humidifier through the humidification water pump for humidification.

[0153] Corresponding to the above method and system embodiments, the embodiment of the present invention further provides an integrated air conditioner, which may include the control system of the integrated air conditioner in any of the above embodiments.

[0154] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0155] Those skilled in the art may further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0156] Specific examples are used in this article to illustrate the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A control method for an integrated air conditioner, characterized in that: The integrated air conditioner comprises: an evaporator, a condenser with a water distribution groove on the top, used to receive condensed water precipitated from the evaporator through the water distribution groove, a heat dissipation water pump, a water collector, a water inlet valve for connecting to an external water source, a pressure sensor for detecting the pressure of the condenser tube in the condenser, and a controller; the water distribution groove is provided with an opening, so that the water in the water distribution groove flows along the opening to the condenser after reaching a set height to take away heat by evaporation, and the remaining condensed water that has not evaporated flows into the water collector; the control method of the integrated air conditioner is applied to the controller, and comprises: Determine whether the refrigeration conditions are met; If the cooling condition is met, the cooling mode is entered; After entering the cooling mode, determining whether the pressure of the condenser is greater than a preset first pressure value; If it is greater than the first pressure value, determining whether the water level of the water collector is higher than the first water level; If the water level is higher than the first water level, the cooling water pump is activated to transport the water in the water collector to the water distribution tank through the cooling water pump to dissipate the heat of the condenser; If it is not higher than the first water level, the water inlet valve is opened to let water in, and after the water inlet is completed, the heat dissipation water pump is activated to transport the water in the water collector to the water distribution tank through the heat dissipation water pump to dissipate heat for the condenser; When it is determined that the pressure of the condenser pipe is less than a preset second pressure value, the cooling water pump is turned off; wherein the second pressure value is less than the first pressure value; Also includes: After entering the cooling mode, when it is detected that the water level of the water collector is higher than the second water level and the duration exceeds the third duration, the rotation speed of the condensing fan of the condenser is controlled to be a fixed first rotation speed; After the condensing fan continuously runs at a fixed first speed for a sixth period of time, determining whether the pressure of the condensing pipe is greater than a preset first pressure value; If it is not greater than the first pressure value, controlling the condensing fan to stop rotating; When it is detected that the water level of the water collector is not higher than the second water level and the duration exceeds a fourth duration, controlling the condensing fan to return to a default state of speed regulation based on the condensing pipe pressure; Wherein, the second water level is higher than the first water level.

2. The control method of the integrated air conditioner according to claim 1, characterized in that: Also includes: After the water inlet valve is opened to let water in for a first period of time, if the water inlet valve still fails to let water in, determining that the water inlet valve has a water inlet failure; When it is detected that the water level of the water collector is higher than the second water level, or when it is detected that the water level of the water collector is higher than the first water level and the duration exceeds the second duration, it is determined that the water inflow is completed; the second water level is higher than the first water level.

3. The control method of the integrated air conditioner according to claim 1, characterized in that: The first rotation speed is the minimum rotation speed of the condensing fan.

4. The control method of the integrated air conditioner according to claim 1, characterized in that: Also includes: After the condensing fan is controlled to stop rotating, when the water level of the water collector is still higher than the second water level after a fifth time period, it is determined that the cooling water pump is faulty; Among them, the fifth duration is greater than the fourth duration.

5. The control method of the integrated air conditioner according to claim 1, characterized in that: Also includes: When it is detected that the pressure of the condenser pipe is greater than a preset system protection pressure value, the speed of the condensing fan of the condenser is controlled to be a fixed maximum speed; Wherein, the system protection pressure value is greater than the first pressure value.

6. The control method of the integrated air conditioner according to claim 1, characterized in that: Also includes: When it is determined that the condition for exiting the cooling mode is met, the cooling mode is exited; Among them, when the return air temperature is greater than the first temperature value, it is determined that the refrigeration condition is met, and when the return air temperature is less than the second temperature value, it is determined that the condition for exiting the refrigeration mode is met; the first temperature value = x + a, the second temperature value = xb, x represents the target temperature value set by the user, a and b are both preset parameters and are non-negative numbers.

7. The control method of the integrated air conditioner according to any one of claims 1 to 6, characterized in that: The integrated air conditioner further includes a humidification water pump and a humidifier, the water collector is connected to the humidifier to collect humidification generated water and humidification residual water of the humidifier, and the control method of the integrated air conditioner further includes: Determine whether the humidification conditions are met; If the humidification condition is met, the humidification mode is entered; After entering the humidification mode, determining whether the water level of the water collector is higher than a first water level; If the water level is higher than the first water level, the humidification water pump is activated to transport the water in the water collector to the humidifier through the humidification water pump for humidification; If it is not higher than the first water level, the water inlet valve is opened to let water in, and after the water inlet is completed, the humidification water pump is activated to transport the water in the water collector to the humidifier for humidification through the humidification water pump.

8. A control system for an integrated air conditioner, characterized in that: The integrated air conditioner comprises: an evaporator, a condenser with a water distribution groove on the top, which is used to receive condensed water precipitated from the evaporator through the water distribution groove, a heat dissipation water pump, a water collector, a water inlet valve for connecting to an external water source, a pressure sensor for detecting the pressure of the condenser tube in the condenser, and a controller; the water distribution groove is provided with an opening, so that the water in the water distribution groove flows along the opening to the condenser after reaching a set height to take away heat by evaporation, and the remaining condensed water that has not evaporated flows into the water collector; the control system of the integrated air conditioner is applied to the controller, and comprises: A refrigeration condition judgment module, used to judge whether the refrigeration condition is met, and if the refrigeration condition is met, the condenser pressure judgment module is triggered; The condenser pressure judgment module is used to: enter the cooling mode, and after entering the cooling mode, judge whether the pressure of the condenser is greater than a preset first pressure value; if it is greater than the first pressure value, trigger the water collector water level judgment module; The water level judgment module of the water collector is used to: judge whether the water level of the water collector is higher than the first water level; if it is higher than the first water level, trigger the cooling water pump control module; if it is not higher than the first water level, open the water inlet valve to let water in, and after the water inlet is completed, trigger the cooling water pump control module; The cooling water pump control module is used to: enable the cooling water pump to transport the water in the water collector to the water distribution tank through the cooling water pump to dissipate heat for the condenser; when it is determined that the pressure of the condenser pipe is less than a preset second pressure value, shut down the cooling water pump; wherein the second pressure value is less than the first pressure value; It also includes a high water consumption execution module for: After entering the cooling mode, when it is detected that the water level of the water collector is higher than the second water level and the duration exceeds the third duration, the speed of the condensing fan of the condenser is controlled to be a fixed first speed; After the condensing fan continuously runs at the fixed first speed for a sixth period of time, determining whether the pressure of the condensing pipe is greater than a preset first pressure value; If it is not greater than the first pressure value, the condensing fan is controlled to stop rotating; When it is detected that the water level of the water collector is not higher than the second water level and the duration exceeds the fourth duration, the condensing fan is controlled to return to the default state of speed regulation based on the condensing pipe pressure; Among them, the second water level is higher than the first water level.

9. An integrated air conditioner, characterized in that: A control system comprising the integrated air conditioner as claimed in claim 8.

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