Air conditioning dewatering device and control method thereof

Abstract

The present invention provides an air conditioner dewatering device and a control method thereof. The air conditioner dewatering device comprises: an air conditioner chassis, a vacuum tank assembly, a vacuum pumping device, and a first heating device. The vacuum tank assembly and the vacuum pumping device are both disposed on the air conditioner chassis. The vacuum tank assembly comprises a vacuum tank body having a hollow cavity. The air conditioner chassis is connected to the hollow cavity so that water in the air conditioner chassis can be directed into the hollow cavity. The vacuum pumping device is connected to the hollow cavity so that gas can be sucked into the hollow cavity. The first heating device is connected to the vacuum tank body so that the interior of the hollow cavity can be heated. According to the present invention, the problem of condensed water in the chassis being unable to be removed and thus freezing during low-temperature heating operation of the air conditioner is effectively solved. At the same time, the large amount of water accumulated in the chassis is prevented from being discharged, thereby solving the problem of condensed water leakage. The efficiency of the dewatering device is improved, solving the problems of low dewatering efficiency and high power consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning water removal device and a control method thereof. Background Art

[0002] Window air conditioners are popular in export markets for their ease of installation and strong cooling and heating capabilities. Because window air conditioners integrate the outdoor and indoor air conditioners into a single chassis, condensation from the inner evaporator during cooling can flow onto the chassis. During heating, water from the air condenses on the outer condenser and accumulates in the chassis. During defrosting during low-temperature heating, significant amounts of water can accumulate in the chassis. In densely populated countries or those with specialized installation standards, this chassis water accumulation cannot be drained using standard methods like hoses or rubber plugs. This is especially true during low-temperature heating, where the outside temperature often falls below freezing. This water accumulation can cause the chassis to freeze, a potentially fatal phenomenon for the fan blades. Therefore, promptly removing this water from the chassis is crucial to resolving this issue.

[0003] Since the window air conditioners in the prior art have the problem that the condensed water in the chassis cannot be removed and thus freezes when operating in low-temperature heating mode, and there are technical problems such as a large amount of water accumulated in the chassis in the cooling mode and the need to remove the accumulated water, the present invention studies and designs an air conditioner dehydration device and its control method. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the condensed water in the chassis cannot be removed and thus freezes when the window air conditioner is operating at low temperature heating, thereby providing an air conditioner dehydration device and a control method thereof.

[0005] In order to solve the above problems, the present invention provides an air conditioning dehydration device, which includes:

[0006] An air-conditioning chassis, a vacuum tank assembly, a vacuum pumping device and a first heating device, wherein the vacuum tank assembly and the vacuum pumping device are both arranged on the air-conditioning chassis; the vacuum tank assembly includes a vacuum tank body, the vacuum tank body has a hollow cavity, the air-conditioning chassis is connected to the hollow cavity so as to be able to guide water in the air-conditioning chassis into the hollow cavity, the vacuum pumping device is connected to the hollow cavity so as to be able to suck gas into the hollow cavity, and the first heating device is connected to the vacuum tank body so as to be able to heat the inside of the hollow cavity.

[0007] In some embodiments, a first connecting pipe and a second connecting pipe are further included, one end of the first connecting pipe is connected to the interior of the air-conditioning chassis, and the other end is connected to the hollow cavity of the vacuum tank body, so that water can be sucked from the air-conditioning chassis into the hollow cavity, and one end of the second connecting pipe is connected to the vacuum pumping device, and the other end is connected to the hollow cavity of the vacuum tank body, so that gas can be sucked into the hollow cavity through the vacuum pumping device.

[0008] In some embodiments, the vacuum tank assembly further includes a sealing cover and an exhaust valve. The bottom end of the vacuum tank body is closed and the upper end is open. The sealing cover is arranged on the upper end of the vacuum tank body. The exhaust valve is arranged on the sealing cover, and the lower end of the exhaust valve is connected to the hollow cavity of the vacuum tank body. When the pressure in the hollow cavity is greater than or equal to a first preset pressure, the exhaust valve can be pushed by the gas in the hollow cavity to open for exhaust.

[0009] In some embodiments, a first cylindrical cavity and a second cylindrical cavity are provided inside the sealing cover, the first cylindrical cavity is located at a lower end of the second cylindrical cavity and the first cylindrical cavity is connected to the second cylindrical cavity, the horizontal width of the first cylindrical cavity is smaller than the horizontal width of the second cylindrical cavity in a longitudinal cross-section, and the lower end of the first cylindrical cavity is connected to the hollow cavity;

[0010] The exhaust valve includes a first column segment and a second column segment, the first column segment is located at the lower end of the second column segment and the first column segment is connected to the second column segment, and in the longitudinal section, the horizontal width of the first column segment is smaller than the horizontal width of the second column segment, when the pressure in the hollow cavity is lower than the first preset pressure, the lower half of the first column segment is inserted into the first cylindrical cavity so that the lower end of the first column segment is connected to the hollow cavity, the upper half of the first column segment is located in the second cylindrical cavity, and the second column segment is located in the second cylindrical cavity.

[0011] In some embodiments, a third cylindrical cavity is further provided inside the sealing cover, and the exhaust valve also includes a third cylindrical section, the third cylindrical cavity is opened downward from the top of the sealing cover to be connected with the second cylindrical cavity, and the horizontal width of the third cylindrical cavity in the longitudinal section is greater than the horizontal width of the second cylindrical cavity, the third cylindrical section is connected to the upper end of the second cylindrical section, and the horizontal width of the third cylindrical section in the longitudinal section is greater than the horizontal width of the second cylindrical section; and when the pressure in the hollow cavity is less than the first preset pressure, the third cylindrical section is provided in the third cylindrical cavity, and a first step is formed at the junction of the third cylindrical section and the second cylindrical section, and a second step is formed at the junction of the third cylindrical cavity and the second cylindrical cavity, and the first step is snapped into place with the second step.

[0012] In some embodiments, the vacuum tank body and the sealing cover are both cylindrical structures, the first cylindrical cavity, the second cylindrical cavity and the third cylindrical cavity are all cylindrical cavities, and the first cylindrical segment, the second cylindrical segment and the third cylindrical segment are all cylindrical segments.

[0013] In some embodiments, the outer wall of the second column segment is fitted against the inner wall of the second cylindrical cavity to form a sealing segment; when the pressure in the hollow cavity is greater than or equal to a first preset pressure, the first column segment is lifted up to drive the second column segment to move upward, and when the lower end of the second column segment is higher than the upper end of the second cylindrical cavity, exhaust begins to be discharged outward.

[0014] In some embodiments, an elastic component is further provided in the second cylindrical cavity, the upper end of the elastic component is fixedly connected to the lower end of the second cylindrical segment, and the lower end of the elastic component is fixedly connected to the bottom of the groove of the second cylindrical cavity, so as to apply elastic tension to the exhaust valve.

[0015] In some embodiments, the elastic component is a spring structure, which is sleeved on the outer circumference of the first column segment; the gap between the outer wall of the third column segment and the inner wall of the third cylindrical cavity is not greater than 1 mm and not less than 0.5 mm; the outer wall of the second column segment is also sleeved with a sealing structure.

[0016] In some embodiments, the sealing cover includes a sealing cover body and a connecting portion, the connecting portion is connected to the lower end of the sealing cover body, and the connecting portion is an annular structure, the inner wall of the connecting portion of the annular structure is sleeved with the outer wall of the vacuum tank body, and the upper end of the vacuum tank body is abutted with the lower end of the sealing cover body, forming a sealed connection between the sealing cover and the vacuum tank body.

[0017] In some embodiments, an internal thread is provided on the inner wall of the connecting portion, an external thread is provided on the upper outer wall of the vacuum tank body, and the connecting portion is threadedly connected to the vacuum tank body; the connecting portion is an annular cylinder, the sealing cover body is a cylinder, and the outer diameter of the connecting portion is equal to the outer diameter of the sealing cover body, so that the outer wall of the connecting portion is flush with the outer wall of the sealing cover body; a sealing structure is also provided on the top of the vacuum tank body.

[0018] In some embodiments, the first heating device is an electric heating plate, the lower end of the vacuum tank body is connected to the upper end of the electric heating plate, and the electric heating plate is fixedly connected to the air conditioner chassis;

[0019] The interior of the vacuum tank body is also provided with an agitator and / or a moisture-absorbing structure, through which the fluid in the hollow cavity can be stirred, and through which the fluid in the hollow cavity can be absorbed and / or adsorbed; the vacuum pumping device also includes an exhaust port; and a second heating device is also provided on the air-conditioning chassis.

[0020] The present invention provides a control method for an air-conditioning water removal device as described in any of the preceding items, comprising:

[0021] A detection step of detecting the water level in the air conditioner chassis;

[0022] Determining whether the water level is higher than a preset height;

[0023] The control step is to control the vacuum device to be turned on when the water level is higher than the preset height to vacuum the hollow cavity of the vacuum tank body, and at the same time control the first heating device to be turned on.

[0024] In some embodiments, when the air conditioner water removal device further includes a first connecting pipe and a second connecting pipe:

[0025] The detecting step further detects the pressure in the hollow cavity;

[0026] The determining step further determines whether the pressure in the hollow cavity is less than a second preset pressure;

[0027] The control step controls closing the vacuum device and the second connecting pipe when the pressure in the hollow cavity is less than the second preset pressure, and simultaneously controls opening the first connecting pipe and controlling closing the first connecting pipe after continuously injecting water for a preset time.

[0028] In some embodiments, the detecting step continuously detects the pressure in the hollow cavity;

[0029] The determining step further determines whether the pressure change in the hollow cavity is greater than a preset value;

[0030] The control step controls the vacuuming device to be turned on again to vacuum the hollow cavity of the vacuum tank body again when the pressure change in the hollow cavity is greater than the preset value.

[0031] In some embodiments, the detecting step continuously detects the pressure in the hollow cavity;

[0032] The determining step continuously determines whether the pressure in the hollow cavity is less than a second preset pressure;

[0033] The control step controls closing the vacuum device and the second connecting pipe when the pressure in the hollow cavity is continuously less than the second preset pressure.

[0034] In some embodiments, the detecting step continuously detects the pressure in the hollow cavity for a preset time;

[0035] The judging step continuously judges whether the pressure change in the hollow cavity is less than a preset value within a preset time;

[0036] The control step is as follows: when the pressure change in the hollow cavity is continuously less than the preset value within the preset time, the water removal process is completed, and the first heating device is controlled to be turned off; when the pressure change in the hollow cavity is greater than the preset value within the preset time, the vacuum device is controlled to be turned on again to vacuum the hollow cavity of the vacuum tank body again until the pressure change in the hollow cavity is continuously less than the preset value.

[0037] The air conditioning dehumidification device and control method thereof provided by the present invention have the following beneficial effects:

[0038] The present invention is provided with a vacuum tank assembly and a vacuum pumping device, and can use the vacuum pumping device to evacuate the vacuum tank assembly, and after the vacuum tank body of the vacuum tank assembly is evacuated to a low pressure, it is connected to the air-conditioning chassis to absorb condensed water from the inside of the air-conditioning chassis. With the opening of the first heating device, the water inside the vacuum tank body can be heated. Since the vacuum pumping device evacuates the hollow cavity of the vacuum tank body into a low-pressure cavity, that is, the pressure is lower than the ambient atmospheric pressure, the boiling point of water can be effectively lowered, so that the water can be heated to water vapor at a temperature lower than the boiling point at normal pressure (usually 100°C) and discharged, thereby effectively solving the problem. The problem of condensed water in the chassis being unable to be discharged and thus freezing when the air conditioner is running in low-temperature heating mode is solved; at the same time, since the present invention discharges water by heating it to water vapor under low-pressure state, a large amount of condensed water will not be discharged from the chassis to the outside during cooling operation, thereby avoiding a large amount of water accumulation in the chassis, thereby solving the problem of condensed water leakage and adapting to the standards of different countries; in addition, the present invention adopts a vacuum device to suck the inside of the vacuum tank into a low-pressure state, so that the boiling point of water is effectively reduced, thereby effectively reducing the power consumption of the first heating device, improving the effectiveness of the water removal device, and solving the problems of low water removal efficiency and high power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a complete assembly structure diagram of the air-conditioning water removal device of the present invention;

[0040] Figure 2 This is a front structural diagram of the air-conditioning water removal device of the present invention;

[0041] Figure 3 This is a structural diagram of a main embodiment of a vacuum tank assembly of an air-conditioning water removal device of the present invention;

[0042] Figure 4 is a structural diagram of an alternative embodiment of a vacuum tank assembly of an air conditioning water removal device of the present invention;

[0043] Figure 5 This is a flow chart of the control method of the air conditioning water removal device of the present invention.

[0044] The reference numerals indicate:

[0045] 1. Air-conditioning chassis; 2. Vacuum tank assembly; 21. Vacuum tank body; 22. Hollow cavity; 23. Sealing cover; 231. First cylindrical cavity; 232. Second cylindrical cavity; 233. Third cylindrical cavity; 234. Sealing cover body; 235. Connecting part; 24. Exhaust valve; 241. First cylindrical section; 242. Second cylindrical section; 243. Third cylindrical section; 3. Vacuuming device; 31. Exhaust port; 4. First heating device; 51. First connecting pipe; 52. Second connecting pipe; 6. Elastic component; 7. Agitator; 8. Second heating device. DETAILED DESCRIPTION

[0046] like Figure 1-4 As shown, the present invention provides an air conditioner water removal device (preferably a window air conditioner external water removal device), which includes:

[0047] An air-conditioning chassis 1, a vacuum tank assembly 2, a vacuum extraction device 3 and a first heating device 4, wherein the vacuum tank assembly 2 and the vacuum extraction device 3 are both arranged on the air-conditioning chassis 1; the vacuum tank assembly 2 includes a vacuum tank body 21, and the vacuum tank body 21 has a hollow cavity 22. The air-conditioning chassis 1 is connected to the hollow cavity 22 so as to be able to guide the water in the air-conditioning chassis 1 into the hollow cavity 22, the vacuum extraction device 3 is connected to the hollow cavity 22 so as to be able to suck gas into the hollow cavity 22, and the first heating device 4 is connected to the vacuum tank body 21 so as to be able to heat the interior of the hollow cavity 22.

[0048] The present invention is provided with a vacuum tank assembly and a vacuum pumping device, and can use the vacuum pumping device to evacuate the vacuum tank assembly, and after the vacuum tank body of the vacuum tank assembly is evacuated to a low pressure, it is connected to the air-conditioning chassis to absorb condensed water from the inside of the air-conditioning chassis. With the opening of the first heating device, the water inside the vacuum tank body can be heated. Since the vacuum pumping device evacuates the hollow cavity of the vacuum tank body into a low-pressure cavity, that is, the pressure is lower than the ambient atmospheric pressure, the boiling point of water can be effectively lowered, so that the water can be heated to water vapor at a temperature lower than the boiling point at normal pressure (usually 100°C) and discharged, thereby effectively solving the problem of low temperature of the air conditioner. The problem of condensed water in the chassis being unable to be discharged and thus freezing during heating operation; at the same time, since the present invention discharges water by heating it to water vapor under low pressure, a large amount of condensed water will not be discharged from the chassis to the outside during cooling operation, thereby avoiding a large amount of water accumulated in the chassis, thereby solving the problem of condensed water leakage, so as to adapt to the standards of different countries; in addition, the present invention adopts a vacuum device to suck the inside of the vacuum tank into a low-pressure state, so that the boiling point of water is effectively reduced, thereby effectively reducing the power consumption of the first heating device, improving the effectiveness of the water removal device, solving the problems of low water removal efficiency and high power consumption, and achieving efficient water removal.

[0049] The present invention combines the vacuum drying principle with the removal of water accumulated in the chassis of the window air conditioner. A vacuum tank is designed. After the chassis is evacuated by a vacuum pump, the pressure in the tank is reduced, and the boiling point of water is reduced at the same time, which solves the problem of excessive power consumption in evaporative removal of water and can remove water more efficiently. After adding hygroscopic materials, the hygroscopic materials can be dried and reused, which greatly solves the problem of irreversible damage to the fan blades caused by condensed water freezing on the outside under low-temperature heating conditions.

[0050] Technical issues solved:

[0051] 1. Solve the problem that the condensed water in the chassis cannot be removed and thus freezes when the air conditioner is running in low-temperature heating mode.

[0052] 2. Solve the problem of condensation water leakage

[0053] 3. Solve the problem of low water removal efficiency and save power consumption.

[0054] Generally, water will accumulate after the air conditioner is running. Some countries do not allow too much accumulated water to flow out or set drainage holes in the chassis to drain the accumulated water. Based on this standard, the present invention avoids customer complaints caused by discharging a large amount of accumulated water. The function of the device of the present invention is to discharge a large amount of accumulated water. The liquid water is converted into gaseous water through the device, so there is no need to discharge the water externally.

[0055] In some embodiments, a first connecting pipe 51 and a second connecting pipe 52 are further included, wherein one end of the first connecting pipe 51 is connected to the interior of the air-conditioning chassis 1, and the other end is connected to the hollow cavity 22 of the vacuum tank body 21, so that water can be sucked from the air-conditioning chassis 1 into the hollow cavity 22; one end of the second connecting pipe 52 is connected to the vacuum pumping device 3, and the other end is connected to the hollow cavity 22 of the vacuum tank body 21, so that gas can be sucked into the hollow cavity 22 through the vacuum pumping device 3. The present invention can connect the hollow cavity of the vacuum tank body with the air-conditioning chassis through a first connecting pipe, so as to suck in condensed water in the air-conditioning chassis, and can connect the vacuum device with the hollow cavity of the vacuum tank body through a second connecting pipe, so as to suck gas into a low pressure in the hollow cavity through the vacuum device, so that water can be evaporated into gas at a temperature lower than the boiling point at normal pressure, effectively reducing the power consumption of the first heating device, improving energy efficiency, and discharging condensed water in the form of water vapor, effectively avoiding the situation of discharging a large amount of condensed water outward, and solving the problem of condensed water freezing or frosting during low-temperature heating.

[0056] In some embodiments, the vacuum tank assembly 2 further includes a sealing cover 23 and an exhaust valve 24. The bottom end of the vacuum tank body 21 is closed and the upper end is open. The sealing cover 23 is provided on the upper end of the vacuum tank body 21. The exhaust valve 24 is provided on the sealing cover 23, and the lower end of the exhaust valve 24 is connected to the hollow cavity 22 of the vacuum tank body 21. When the pressure in the hollow cavity 22 is greater than or equal to a first preset pressure, the exhaust valve 24 can be pushed by the gas in the hollow cavity 22 to open for exhaust. This is a preferred structural form of the vacuum tank assembly of the present invention. The upper end of the vacuum tank body can be effectively sealed by the sealing cover. The exhaust valve can be provided on the sealing cover and the exhaust valve is connected to the hollow cavity so that when the gas in the cavity reaches the first preset pressure, the exhaust valve is pushed to move to achieve the effect of automatic exhaust.

[0057] In some embodiments, the sealing cover 23 is provided with a first cylindrical cavity 231 and a second cylindrical cavity 232. The first cylindrical cavity 231 is located at the lower end of the second cylindrical cavity 232 and the first cylindrical cavity 231 is connected to the second cylindrical cavity 232. In a longitudinal cross-section, the horizontal width of the first cylindrical cavity 231 is smaller than the horizontal width of the second cylindrical cavity 232. The lower end of the first cylindrical cavity 231 is connected to the hollow cavity 22.

[0058] The exhaust valve 24 includes a first column segment 241 and a second column segment 242. The first column segment 241 is located at the lower end of the second column segment 242 and the first column segment 241 is connected to the second column segment 242. In the longitudinal section, the horizontal width of the first column segment 241 is smaller than the horizontal width of the second column segment 242. When the pressure in the hollow cavity 22 is lower than the first preset pressure, the lower half of the first column segment 241 is inserted into the first cylindrical cavity 231 so that the lower end of the first column segment 241 is connected to the hollow cavity 22. The upper half of the first column segment 241 is located in the second cylindrical cavity 232, and the second column segment 242 is located in the second cylindrical cavity 232.

[0059] This is the preferred structural form of the sealing cover and exhaust valve of the present invention. The first cylindrical cavity can accommodate the first cylindrical section to be inserted and connected with the hollow cavity. The width of the first cylindrical cavity is smaller than that of the second cylindrical cavity, which can form a partial structural seal in the part of the first cylindrical cavity. The second cylindrical cavity is used to accommodate an elastic component therein to provide an elastic restoring force for the automatic exhaust valve. The elastic restoring force is an elastic tensile force, which can enable the exhaust valve to be pulled back into the cavity by the elastic component after the exhaust is completed. The second cylindrical section is used to cooperate with the second cylindrical cavity to form a sealing section, thereby effectively keeping the gas in the hollow cavity sealed when the first preset pressure is not reached to prevent gas leakage from the outside.

[0060] In some embodiments, a third cylindrical cavity 233 is further provided inside the sealing cover 23, and the exhaust valve 24 also includes a third cylindrical section 243. The third cylindrical cavity 233 is opened downward from the top of the sealing cover 23 to communicate with the second cylindrical cavity 232, and the horizontal width of the third cylindrical cavity 233 in the longitudinal section is greater than the horizontal width of the second cylindrical cavity 232. The third cylindrical section 243 is connected to the upper end of the second cylindrical section 242, and the horizontal width of the third cylindrical section 243 in the longitudinal section is greater than the horizontal width of the second cylindrical section 242; and when the pressure in the hollow cavity 22 is lower than the first preset pressure, the third cylindrical section 243 is provided in the third cylindrical cavity 233, and a first step is formed at the junction of the third cylindrical section 243 and the second cylindrical section 242, and a second step is formed at the junction of the third cylindrical cavity 233 and the second cylindrical cavity 232, and the first step is snap-fitted to the second step.

[0061] The present invention also preferably includes a third cylindrical cavity and a third cylindrical segment. The third cylindrical segment can be matched with the third cylindrical cavity to accommodate the third cylindrical segment, and a first step is formed at the junction of the third cylindrical segment and the second cylindrical segment, which can be clamped with a second step formed at the junction of the third cylindrical cavity and the second cylindrical cavity, so that the downward movement of the automatic exhaust valve is restricted, and a further sealing distance is formed between the lower end face and outer wall of the third cylindrical segment and the third cylindrical cavity, thereby further improving the sealing effect.

[0062] In some embodiments, the vacuum tank body 21 and the sealing cover 23 are both cylindrical structures, the first cylindrical cavity 231, the second cylindrical cavity 232, and the third cylindrical cavity 233 are all cylindrical cavities, and the first cylindrical segment 241, the second cylindrical segment 242, and the third cylindrical segment 243 are all cylindrical segments. This is the preferred structural form of the vacuum tank body and sealing cover, as well as the multiple cylindrical cavities and multiple cylindrical segments of the present invention, that is, they are preferably all cylindrical structures, effectively forming a fit for receiving, plugging, and snapping.

[0063] In some embodiments, the outer wall of the second cylindrical segment 242 fits against the inner wall of the second cylindrical cavity 232 to form a sealing segment. When the pressure in the hollow cavity 22 is greater than or equal to a first preset pressure, the first cylindrical segment 241 is lifted up, driving the second cylindrical segment 242 upward, and when the lower end of the second cylindrical segment 242 is higher than the upper end of the second cylindrical cavity 232, exhaust begins to be released. The present invention forms a sealing segment by fitting the outer wall of the second cylindrical segment against the inner wall of the second cylindrical cavity. The height of the second cylindrical segment is less than the height of the second cylindrical cavity, thereby effectively sealing the gas in the hollow cavity. When the gas pressure in the hollow cavity exceeds the first preset pressure, the pressure overcomes the elastic force of the spring and the preload of the sealing segment, pushing the automatic exhaust valve upward. The sealing segment is released only when the lower end of the second cylindrical segment moves above the upper end of the second cylindrical cavity, thereby allowing gas to be discharged.

[0064] In some embodiments, an elastic member 6 is further disposed within the second cylindrical cavity 232. The upper end of the elastic member 6 is affixed to the lower end of the second cylindrical section 242, and the lower end of the elastic member 6 is affixed to the groove bottom of the second cylindrical cavity 232, thereby applying an elastic tension to the exhaust valve 24. The provision of the elastic member in the present invention allows the elastic tension to be applied to the exhaust valve for restoring force, enabling the exhaust valve to automatically exhaust air during upward movement to intake air, and to be pulled back into the cavity by the elastic tension after exhaust is complete, thereby restoring the valve and preparing for the next exhaust cycle.

[0065] In some embodiments, the elastic component 6 is a spring structure, which is sleeved around the outer circumference of the first cylindrical segment 241. The gap between the outer wall of the third cylindrical segment 243 and the inner wall of the third cylindrical cavity 233 is no greater than 1 mm and no less than 0.5 mm. The outer wall of the second cylindrical segment 242 is also sleeved with a sealing structure. The elastic component of the present invention is preferably a spring, and is sleeved around the outer circumference of the first cylindrical segment, forming a sleeve connection, facilitating installation and providing elastic restoring force. The outer wall of the second cylindrical segment 242 is also sleeved with a sealing structure to further enhance the sealing effect of the sealing segment. A small gap is provided between the outer wall of the third cylindrical segment and the inner wall of the third cylindrical cavity to allow for the discharge of water vapor, but the gap should not be too large to prevent ineffective sealing.

[0066] The present invention is composed of a vacuum pump, a vacuum connecting pipe, and a vacuum tank including an automatic exhaust valve. The exhaust valve body is divided into three sections: upper, middle, and lower. The middle section is the sealing section (the middle section is the second column section, the upper section is the third column section, and the lower section is the first column section). Figure 1As shown, the upper exhaust valve cooperates with the lid of the vacuum tank, and the single-side gap is no more than 1mm and no less than 0.5mm. The gap is left to discharge water vapor; the middle end is covered with a colloid material for sealing, and the entire valve body is connected to two springs fixed with a certain preload force and inserted into the lid of the vacuum tank. The lid of the vacuum tank is fastened to the tank body with threads. There is a colloid material on the top of the tank body. After the lid is tightened, it can come into contact with the colloid material of the tank body, making it more sealed. The vacuum connecting pipe connects the vacuum pump to the vacuum tank. The vacuum tank chassis is laid with an electric heating wire, which is used to heat the tank body to evaporate moisture. The vacuum pump has two channels, one for vacuuming and the other for pumping water.

[0067] In some embodiments, the sealing cover 23 includes a sealing cover body 234 and a connecting portion 235. The connecting portion 235 is connected to the lower end of the sealing cover body 234 and is an annular structure. The inner wall of the connecting portion 235 of the annular structure is sleeved with the outer wall of the vacuum tank body 21. The upper end of the vacuum tank body 21 abuts against the lower end of the sealing cover body 234, forming a sealed connection between the sealing cover 23 and the vacuum tank body 21. The sealing cover of the present invention further includes a sealing cover body and a connecting portion. The connecting portion of the annular structure can be sleeved on the outer circumference of the vacuum tank body to form a sealed connection with the vacuum tank body.

[0068] In some embodiments, the inner wall of the connecting portion 235 is provided with an internal thread, and the upper outer wall of the vacuum tank body 21 is provided with an external thread, and the connecting portion 235 is threadedly connected to the vacuum tank body 21; the connecting portion 235 is a circular cylinder, the sealing cover body 234 is a cylinder, and the outer diameter of the connecting portion 235 is equal to the outer diameter of the sealing cover body 234, so that the outer wall of the connecting portion 235 is flush with the outer wall of the sealing cover body 234; the top of the vacuum tank body 21 is also provided with a sealing structure. The internal thread provided on the inner wall of the connecting portion of the present invention matches the external thread on the outer wall of the vacuum tank, so that the connecting portion can be spirally screwed onto the vacuum tank body to form a sealed connection between the two; the top of the vacuum tank body is also provided with a sealing structure, so that the outer peripheral wall and the top of the vacuum tank body can form a secondary seal, thereby further improving the sealing effect.

[0069] In some embodiments, the first heating device 4 is an electric heating plate, the lower end of the vacuum tank body 21 is connected to the upper end of the electric heating plate, and the electric heating plate is fixedly connected to the air conditioner chassis 1;

[0070] The interior of the vacuum tank body 21 is also provided with an agitator 7 and / or a moisture-absorbing structure, through which the fluid in the hollow cavity 22 can be stirred, and through the moisture-absorbing structure, the fluid in the hollow cavity 22 can be absorbed and / or adsorbed; the vacuum pumping device 3 also includes an exhaust port 31; and a second heating device 8 is also provided on the air-conditioning chassis 1.

[0071] The first heating device of the present invention is preferably an electric heating plate structure, which can not only heat the vacuum tank body but also support the vacuum tank body, and the electric heating plate is located at the lower end of the vacuum tank body, which can make the heated heat go from bottom to top, and has a more optimized heating effect on the vacuum tank body; the present invention can also stir the heating process through the agitator arranged inside the vacuum tank body, thereby further making the heating area of ​​the fluid larger and the heating effect more sufficient, and can absorb and adsorb water through the setting of the hygroscopic structure, so that it is easier to be heated and evaporated; the exhaust port of the vacuum device is used to discharge the extracted gas; the second heating device on the air-conditioning chassis can heat the water on the air-conditioning chassis to prevent it from freezing, and the second heating device is preferably an electric heating belt.

[0072] During the specific implementation process, silica gel hygroscopic material is added into the vacuum tank. Liquid water entering the vacuum tank will be adsorbed and more easily evaporated.

[0073] In order to make the solid hygroscopic material fully heated to evaporate the water, a stirrer rotating around the center of the circle is added to the bottom of the tank, such as Figure 4 , the height of the hygroscopic material is always higher than the stirrer, and stirring can be completed. If there is no hygroscopic material, stirring can also achieve the effect of accelerating convective heat transfer.

[0074] like Figure 5 As shown, the present invention also provides a control method for the air conditioning water removal device as described in any of the above items, which includes:

[0075] A detection step of detecting the water level in the air-conditioning chassis 1;

[0076] Determining whether the water level is higher than a preset height;

[0077] Control step: when the water level is higher than the preset height, control the vacuum device 3 to open to vacuum the hollow cavity 22 of the vacuum tank body 21, and at the same time control the first heating device 4 to open.

[0078] The present invention determines and controls whether to perform vacuuming by detecting the water level height, so that the vacuum tank body can be vacuumed and heated when the water level reaches a preset height, thereby providing conditions for injecting water into the vacuum tank body and heating low-boiling-point evaporation.

[0079] In some embodiments, when the air conditioner water removal device further includes a first connecting pipe 51 and a second connecting pipe 52:

[0080] The detecting step further detects the pressure in the hollow cavity 22;

[0081] The determining step further determines whether the pressure in the hollow cavity 22 is less than a second preset pressure;

[0082] The control step is to control the closure of the vacuum device 3 and the second connecting pipe 52 (i.e., the air extraction channel) when the pressure in the hollow cavity 22 is less than the second preset pressure, and at the same time control the opening of the first connecting pipe 51 (i.e., the water injection channel), and control the closure after the water injection continues for a preset time.

[0083] The present invention can determine whether the pressure in the hollow cavity is less than the second preset pressure through the above-mentioned control scheme. If it is less than the second preset pressure, it means that the pressure in the hollow cavity meets the conditions for heating and low-boiling-point evaporation. Therefore, the vacuum device and the air extraction channel are evacuated, and the water injection channel is opened to inject water into the hollow cavity for a preset time, thereby performing low-boiling-point heating and evaporation of the condensed water.

[0084] The present invention can effectively lower the boiling point of water, so that water can be heated to water vapor at a temperature lower than the boiling point at normal pressure (usually 100°C) and discharged, thereby effectively solving the problem that condensed water in the chassis cannot be removed and thus freezes when the air conditioner is running in low-temperature heating mode; at the same time, since the present invention discharges water by heating it to water vapor under low-pressure state, a large amount of condensed water will not be discharged from the chassis to the outside during cooling operation, thereby avoiding a large amount of water accumulation in the chassis, thereby solving the problem of condensed water leakage, and adapting to the standard requirements of different countries; in addition, the present invention adopts a vacuum pumping device to suck the inside of the vacuum tank into a low-pressure state, so that the boiling point of water is effectively lowered, thereby effectively reducing the power consumption of the first heating device, improving the effectiveness of the water removal device, solving the problems of low water removal efficiency and high power consumption, and achieving efficient water removal.

[0085] In some embodiments, the detecting step continuously detects the pressure in the hollow cavity 22;

[0086] The determining step further determines whether the pressure change in the hollow cavity 22 is greater than a preset value;

[0087] In the control step, when the pressure change in the hollow cavity 22 is greater than the preset value, the vacuum pumping device 3 is controlled to be turned on again to vacuum the hollow cavity 22 of the vacuum tank body 21 again. Through the above steps, the present invention determines whether the pressure change in the hollow cavity is greater than the preset value. If it is greater than the preset value, it means that there is still gas in the hollow cavity, so pressure will be released through the exhaust valve. Therefore, when the pressure change is greater than the preset value, the vacuum pumping device needs to be turned on again to vacuum the hollow cavity to continue to suck the condensed water and heat it at a low boiling point to discharge it.

[0088] In some embodiments, the detecting step continuously detects the pressure in the hollow cavity 22;

[0089] The determining step continuously determines whether the pressure in the hollow cavity 22 is less than a second preset pressure;

[0090] The control step controls closing the vacuum device 3 and the second connecting pipe 52 (ie, the air extraction channel) when the pressure in the hollow cavity 22 is continuously lower than the second preset pressure.

[0091] Through the above steps, the present invention can ensure that when the pressure in the hollow cavity is continuously less than the second preset pressure, it means that the pressure in the hollow cavity meets the requirements of low-boiling-point heating. At this time, the vacuum pumping device and the air extraction channel are closed, and the water injection channel needs to be opened to inject water and evaporate by low-boiling-point heating to drain water.

[0092] In some embodiments, the detecting step continuously detects the pressure in the hollow cavity 22 for a preset time;

[0093] The judging step continuously judges whether the pressure change in the hollow cavity 22 is less than a preset value within a preset time;

[0094] In the control step, when the pressure change in the hollow cavity 22 is continuously less than the preset value within the preset time, the water removal process is completed, and the first heating device 4 is controlled to be closed; when the pressure change in the hollow cavity 22 is greater than the preset value within the preset time, the vacuum device 3 is controlled to be turned on again to vacuum the hollow cavity 22 of the vacuum tank body 21 again until the pressure change in the hollow cavity 22 is continuously less than the preset value.

[0095] Through the above steps, the present invention can complete the water removal process when the pressure change is continuously less than the preset value, indicating that there is no gas or less gas in the hollow cavity; if the pressure change is greater than the preset value, it means that there is still gas, and it is necessary to repeatedly vacuum and pump water for low-boiling-point heating and evaporation to remove condensed water until the pressure change is continuously less than the preset value.

[0096] When the unit enters heating mode, the outdoor air, which has a certain humidity content, condenses into water upon contact with the cooler heat exchanger. In colder temperatures, frost may even form on the heat exchanger. To prevent excessive frost on the heat exchanger, which could affect heat transfer efficiency, defrosting is necessary at appropriate times. This can result in water accumulation in the chassis. In cold temperatures, this water can freeze into thick ice, which can be fatal to the outer fan blades, which can hit the solid ice and cause them to fail. Therefore, before the unit is turned on, an electric heating strip pre-installed in the chassis is activated to melt the ice. When the water in the chassis reaches a preset level, a water level sensor sends feedback to the control system, activating the vacuum pump and the electrically heated base of the vacuum tank. The vacuum pump then draws air out of the tank, reducing the pressure. According to the designed vacuum degree of the vacuum pump, the vacuum degree in the vacuum tank is detected. For example, if the designed vacuum degree of the vacuum pump is -85KPa, considering the loss, the vacuum channel can be closed when the vacuum degree in the tank reaches -80KPa, and the water injection channel can be opened. At this time, the water injection port is immersed in water, and the pressure at the end connected to the vacuum tank is much lower than the external atmospheric pressure, so the water will be quickly pressed into the vacuum tank. The preset opening time of the water injection channel is 1s to prevent air from being drawn into the tank after the water level drops. The electric heating seat continuously heats the vacuum tank. Since the vacuum degree in the tank is -80KPa, the theoretical boiling point of water is about 70℃. The higher the vacuum degree, the lower the boiling point of water, and the water can be evaporated with lower power consumption. When the liquid water in the tank evaporates into gas, the pressure in the tank increases. When the pressure in the tank reaches 2MPa, a pressure of 100N will be generated at the bottom of the exhaust valve. The pressure at the upper end of the exhaust valve is generated by atmospheric pressure, which is calculated to be 90N. The preload force of the rubber and spring in the middle of the automatic exhaust valve is 5N. According to Newton's second law, the exhaust valve will gradually move upward. When the sealing section of the exhaust valve is pushed out, the gas in the tank is released. This is the pressure relief stage. At this time, the downward force of the preloaded spring itself and the combined force of the atmospheric pressure press the exhaust valve back to its original position, and the vacuum pump is restarted to pump air. The vacuuming, heating, and pressure relief processes are repeated.

[0097] The prerequisite for the operation of the vacuum pump and the electric heating plate is that when the water level sensor detects that the water level is higher than the preset water level, the vacuum pump and the electric heating plate are turned on, the vacuum pump is turned off after the water injection channel is opened, and the electric heating plate continues to work. The vacuum pump is turned on after the pressure change in the detection tank is greater than the preset value (that is, there is still a lot of gas in the hollow cavity at this time, and the next step of vacuuming, heating and evaporation control is required). The condition for stopping the work is that the manometer detects that the pressure in the tank is kept within the preset value within the preset time. For example, within the preset time of 5 minutes, the pressure change in the tank is within 100Pa, and the vacuum pump and the electric heating plate can be stopped (when there is no gas in the tank, the pressure will not increase. At this time, it means that no water has entered the vacuum tank, and the work can be stopped).

[0098] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. An air conditioning dehumidification device, characterized in that: include: An air-conditioning chassis (1), a vacuum tank assembly (2), a vacuum pumping device (3) and a first heating device (4), wherein the vacuum tank assembly (2) and the vacuum pumping device (3) are both arranged on the air-conditioning chassis (1); the vacuum tank assembly (2) comprises a vacuum tank body (21), the vacuum tank body (21) has a hollow cavity (22), the air-conditioning chassis (1) is in communication with the hollow cavity (22) so as to be able to guide water in the air-conditioning chassis (1) into the hollow cavity (22), the vacuum pumping device (3) is in communication with the hollow cavity (22) so as to be able to suck gas from the hollow cavity (22), and the first heating device (4) is connected to the vacuum tank body (21) so as to be able to heat the interior of the hollow cavity (22); The apparatus further comprises a first connecting pipe (51) and a second connecting pipe (52), wherein one end of the first connecting pipe (51) is connected to the interior of the air-conditioning chassis (1), and the other end is connected to the hollow cavity (22) of the vacuum tank body (21), so as to be able to draw water from the air-conditioning chassis (1) into the hollow cavity (22); and one end of the second connecting pipe (52) is connected to the vacuum pumping device (3), and the other end is connected to the hollow cavity (22) of the vacuum tank body (21), so as to be able to draw gas from the hollow cavity (22) through the vacuum pumping device (3); The vacuum tank assembly (2) further comprises a sealing cover (23) and an exhaust valve (24); the bottom end of the vacuum tank body (21) is closed and the top end is open; the sealing cover (23) is arranged on the top end of the vacuum tank body (21); the exhaust valve (24) is arranged on the sealing cover (23); and the lower end of the exhaust valve (24) is connected to the hollow cavity (22) of the vacuum tank body (21); when the pressure in the hollow cavity (22) is greater than or equal to a first preset pressure, the exhaust valve (24) can be pushed by the gas in the hollow cavity (22) to open for exhaust; The sealing cover (23) is provided with a first cylindrical cavity (231) and a second cylindrical cavity (232) inside, the first cylindrical cavity (231) is located at the lower end of the second cylindrical cavity (232) and the first cylindrical cavity (231) is communicated with the second cylindrical cavity (232), the horizontal width of the first cylindrical cavity (231) is smaller than the horizontal width of the second cylindrical cavity (232) in the longitudinal section, and the lower end of the first cylindrical cavity (231) is communicated with the hollow cavity (22); The exhaust valve (24) comprises a first column segment (241) and a second column segment (242), wherein the first column segment (241) is located at the lower end of the second column segment (242) and the first column segment (241) is connected to the second column segment (242); in a longitudinal section, the horizontal width of the first column segment (241) is smaller than the horizontal width of the second column segment (242); when the pressure in the hollow cavity (22) is lower than a first preset pressure, the lower half of the first column segment (241) is inserted into the first columnar cavity (231) so that the lower end of the first column segment (241) is communicated with the hollow cavity (22); the upper half of the first column segment (241) is located in the second columnar cavity (232), and the second column segment (242) is located in the second columnar cavity (232); The outer wall of the second column segment (242) and the inner wall of the second cylindrical cavity (232) are fitted together to form a sealing segment; when the pressure in the hollow cavity (22) is greater than or equal to a first preset pressure, the first column segment (241) is lifted up to drive the second column segment (242) to move upward, and when the lower end of the second column segment (242) is higher than the upper end of the second cylindrical cavity (232), exhaust begins to be discharged outward.

2. The air conditioning water removal device according to claim 1, characterized in that: The sealing cover (23) is further provided with a third cylindrical cavity (233) inside, and the exhaust valve (24) further includes a third cylindrical section (243). The third cylindrical cavity (233) is opened downward from the top of the sealing cover (23) to communicate with the second cylindrical cavity (232), and the horizontal width of the third cylindrical cavity (233) in the longitudinal section is greater than the horizontal width of the second cylindrical cavity (232), and the third cylindrical section (243) is connected to the upper end of the second cylindrical section (242), and the third cylindrical section (243) is connected to the upper end of the second cylindrical section (242). The horizontal width of the third column segment (243) is greater than the horizontal width of the second column segment (242); and when the pressure in the hollow cavity (22) is less than a first preset pressure, the third column segment (243) is arranged in the third cylindrical cavity (233), and a first step is formed at the junction of the third column segment (243) and the second column segment (242), and a second step is formed at the junction of the third cylindrical cavity (233) and the second cylindrical cavity (232), and the first step and the second step are snap-fitted.

3. The air conditioning water removal device according to claim 2, characterized in that: The vacuum tank body (21) and the sealing cover (23) are both cylindrical structures; the first cylindrical cavity (231), the second cylindrical cavity (232) and the third cylindrical cavity (233) are all cylindrical cavities; and the first cylindrical segment (241), the second cylindrical segment (242) and the third cylindrical segment (243) are all cylindrical segments.

4. The air conditioning water removal device according to claim 2, characterized in that: An elastic component (6) is also provided in the second cylindrical cavity (232), the upper end of the elastic component (6) being fixedly connected to the lower end of the second cylindrical section (242), and the lower end of the elastic component (6) being fixedly connected to the bottom of the groove of the second cylindrical cavity (232), so as to apply elastic tension to the exhaust valve (24).

5. The air conditioning water removal device according to claim 4, characterized in that: The elastic component (6) is a spring structure, which is sleeved on the outer periphery of the first column segment (241); the gap between the outer wall of the third column segment (243) and the inner wall of the third cylindrical cavity (233) is not greater than 1 mm and not less than 0.5 mm; the outer wall of the second column segment (242) is also sleeved with a sealing structure.

6. The air conditioning water removal device according to claim 1, characterized in that: The sealing cover (23) comprises a sealing cover body (234) and a connecting portion (235). The connecting portion (235) is connected to the lower end of the sealing cover body (234), and the connecting portion (235) is an annular structure. The inner wall of the connecting portion (235) of the annular structure is sleeved with the outer wall of the vacuum tank body (21). The upper end of the vacuum tank body (21) abuts against the lower end of the sealing cover body (234), forming a sealed connection between the sealing cover (23) and the vacuum tank body (21).

7. The air conditioning water removal device according to claim 6, characterized in that: An internal thread is provided on the inner wall of the connecting portion (235), and an external thread is provided on the outer wall of the upper end of the vacuum tank body (21), and the connecting portion (235) is threadedly connected to the vacuum tank body (21); the connecting portion (235) is a circular cylinder, and the sealing cover body (234) is a cylinder, and the outer diameter of the connecting portion (235) is equal to the outer diameter of the sealing cover body (234), so that the outer wall of the connecting portion (235) is flush with the outer wall of the sealing cover body (234); the top end of the vacuum tank body (21) is also provided with a sealing structure.

8. The air conditioning water removal device according to any one of claims 1 to 7, characterized in that: The first heating device (4) is an electric heating plate structure, the lower end of the vacuum tank body (21) is connected to the upper end of the electric heating plate, and the electric heating plate is fixedly connected to the air conditioner chassis (1); The interior of the vacuum tank body (21) is further provided with an agitator (7) and / or a moisture absorption structure, and the agitator (7) can stir the fluid in the hollow cavity (22), and the moisture absorption structure can absorb and / or adsorb the fluid in the hollow cavity (22); the vacuum pumping device (3) also includes an exhaust port (31); and the air-conditioning chassis (1) is further provided with a second heating device (8).

9. A control method for an air-conditioning water removal device according to any one of claims 1 to 8, characterized in that: include: A detection step of detecting the water level in the air-conditioning chassis (1); Determining whether the water level is higher than a preset height; A control step, when the water level is higher than the preset height, controlling the vacuuming device (3) to be turned on to vacuum the hollow cavity (22) of the vacuum tank body (21), and simultaneously controlling the first heating device (4) to be turned on.

10. The control method according to claim 9, characterized in that: When the air-conditioning water removal device further includes a first connecting pipe (51) and a second connecting pipe (52): The detecting step further detects the pressure in the hollow cavity (22); The judging step further judges whether the pressure in the hollow cavity (22) is less than a second preset pressure; The control step controls the vacuum device (3) and the second connecting pipe (52) to be closed when the pressure in the hollow cavity (22) is less than the second preset pressure, and simultaneously controls the first connecting pipe (51) to be opened and closed after the water is continuously injected for a preset time.

11. The control method according to claim 10, characterized in that: The detecting step continuously detects the pressure in the hollow cavity (22); The judging step further judges whether the pressure change in the hollow cavity (22) is greater than a preset value; The control step controls the vacuuming device (3) to be turned on again when the pressure change in the hollow cavity (22) is greater than the preset value, so as to vacuum the hollow cavity (22) of the vacuum tank body (21) again.

12. The control method according to claim 11, characterized in that: The detecting step continuously detects the pressure in the hollow cavity (22); The judging step continuously judges whether the pressure in the hollow cavity (22) is less than a second preset pressure; The control step controls closing the vacuum device (3) and the second connecting pipe (52) when the pressure in the hollow cavity (22) is continuously less than the second preset pressure.

13. The control method according to claim 12, characterized in that: The detection step continuously detects the pressure in the hollow cavity (22) within a preset time; The judging step continuously judges whether the pressure change in the hollow cavity (22) is less than a preset value within a preset time; The control step is as follows: when the pressure change in the hollow cavity (22) is continuously less than the preset value within a preset time, the water removal process is completed, and the first heating device (4) is controlled to be turned off; when the pressure change in the hollow cavity (22) is greater than the preset value within the preset time, the vacuuming device (3) is controlled to be turned on again to vacuum the hollow cavity (22) of the vacuum tank body (21) again, until the pressure change in the hollow cavity (22) is continuously less than the preset value.

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