Drainage device and air conditioner

Abstract

The utility model provides a drainage device and an air conditioner, the drainage device comprises a shell, an evaporation cavity connecting port and a drainage hole, the evaporation cavity connecting port is communicated with an evaporation cavity of the air conditioner so as to receive condensate water generated in an evaporator, and the drainage hole can drain the condensate water in the shell; a first water storage tank and a first moving part are arranged in the shell, the evaporation cavity connecting port can communicate with the drainage hole through the first water storage tank, the first moving part can rotate in the first water storage tank, and when the liquid level in the first water storage tank rises to a first preset height, the first moving part can move to automatically open the first water storage tank; when the liquid level height in the first water storage tank is reduced to a second preset height, the first moving part can move to automatically close the first water storage tank; the second preset height is smaller than the first preset height. According to the utility model, external hot air can be prevented from being sucked into the cockpit during drainage, normal drainage is realized, heat exchange of the evaporator can be enhanced, and energy efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a drainage device and an air conditioner. Background Art

[0002] In hot weather, large truck drivers need to turn on the air conditioner to cool down when they stop to unload and rest. The truck is originally equipped with an air conditioner, which is driven by the engine through a pulley to drive the compressor. If the original car air conditioner is used when parking, the vehicle needs to ignite and run the engine at idle speed, which will lead to many disadvantages: such as the engine is prone to carbon accumulation and damage, and incomplete diesel combustion is prone to carbon monoxide poisoning. To avoid these problems, trucks are generally equipped with parking air conditioners. Usually, parking air conditioners use the original car 24V battery, which has limited battery power, short air conditioning usage time, and limited air conditioning refrigeration capacity. At present, the mainstream brand refrigeration efficiency on the market is only 2.0, and the capacity is only about 2000W. Therefore, improving the refrigeration capacity and energy efficiency of parking air conditioners in the industry has become a major challenge. The evaporator of the air conditioner will produce condensed water during operation, so the drain hole is a necessary structure in the air conditioner; but there are two problems with opening the drain hole: 1. The hot air from the outside is directly sucked into the cockpit through the drain hole, causing the cockpit temperature to rise and the refrigeration capacity to decrease. 2. Opening the drain hole will cause the internal pressure loss of the evaporation chamber to weaken the internal circulation heat exchange capacity, thereby reducing the air conditioning capacity and energy efficiency. The utility model is mainly to solve these drawbacks and improve the system capacity and energy efficiency.

[0003] Since the parking air conditioner in the prior art has technical problems such as hot air from the outside being directly sucked into the cockpit through the drainage holes during operation, which causes the cockpit temperature to rise and the cooling capacity to decrease, the utility model studies and designs a drainage device and an air conditioner. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that during operation of the parking air conditioner, the hot air from the outside is directly sucked into the cockpit through the drainage hole, causing the temperature of the cockpit to rise and the cooling capacity to decrease, thereby providing a drainage device and an air conditioner.

[0005] In order to solve the above problems, the utility model provides a drainage device, which includes:

[0006] A shell, wherein the shell has an evaporation chamber connection port and a drain hole, wherein the evaporation chamber connection port is in communication with the evaporation chamber of the air conditioner so as to receive condensed water generated in the evaporator, and the drain hole can discharge the condensed water inside the shell;

[0007] A first water storage tank and a first moving part are provided inside the shell, the evaporation chamber connection port can be connected to the drainage hole through the first water storage tank, the first moving part can rotate in the first water storage tank, when the liquid level in the first water storage tank rises to a first preset height, the first moving part can move to automatically open the first water storage tank, when the liquid level in the first water storage tank drops to a second preset height, the first moving part can move to automatically close the first water storage tank; the second preset height is less than or equal to the first preset height.

[0008] In some embodiments,

[0009] A second water tank is also provided inside the shell, and the second water tank is connected to the drainage hole, and the first water tank is connected to the evaporation chamber connection port. When the liquid level in the first water tank rises to a first preset height, the first moving part can move to its lower end to form a gap with the inner bottom of the first water tank, so that the first water tank and the second water tank are connected through the gap, and water is discharged from the first water tank to the second water tank; when the liquid level in the first water tank drops to a second preset height, the first moving part can move to its lower end to abut against the inner bottom of the first water tank, and automatically close the connection between the first water tank and the second water tank.

[0010] In some embodiments,

[0011] The inner bottom height of the second water storage tank is lower than the inner bottom height of the first water storage tank;

[0012] A floating structure is also provided in the second water tank, and the floating structure can float on the liquid surface of the second water tank and can move up and down with the liquid level in the second water tank. The floating structure floats upward to open the drainage hole. The flow area of ​​the drainage hole is set to have a flow rate through it that is smaller than the flow rate from the first water tank to the second water tank. When the liquid level in the second water tank rises to a third preset height, the first moving part moves until its lower end abuts against the inner bottom of the first water tank to close the connection between the first water tank and the second water tank.

[0013] In some embodiments,

[0014] A rotating body and a second moving member are also provided inside the housing, one end of the first moving member is connected to the rotating body and the other end extends toward a first direction, one end of the second moving member is connected to the rotating body and the other end extends toward a second direction, the first direction and the second direction are different directions, and both the first moving member and the second moving member can rotate integrally with the rotating body;

[0015] When the liquid level in the first water storage tank rises to a first preset height, the first torque T1 received by the first moving member is smaller than the second torque T2 received by the second moving member, so that the first moving member rotates to form a gap with the inner bottom of the first water storage tank, thereby opening the first water storage tank;

[0016] When the liquid level in the first water tank drops to a second preset height, the first torque T1 applied to the first moving member is greater than the second torque T2 applied to the second moving member, causing the first moving member to rotate to connect with the inner bottom of the first water tank, thereby closing the first water tank.

[0017] In some embodiments,

[0018] Both sides of the rotation direction of the first moving part are subjected to gas pressure to form a first pressure difference in the first rotation direction, and the first pressure difference acts on the first moving part to form a first torque T1, and both sides of the rotation direction of the second moving part are subjected to gas pressure to form a second pressure difference in the second rotation direction, and the second pressure difference acts on the second moving part to form a second torque T2, and the first rotation direction is opposite to the second rotation direction;

[0019] When the liquid level in the first water tank is greater than or equal to the first preset height, the first torque T1 is less than the second torque T2, and the torque difference drives the first moving part, the second moving part and the rotating body to rotate together in the second rotation direction, so that the lower end of the first moving part forms a gap with the inner bottom of the first water tank to drain water; when the liquid level in the first water tank is less than or equal to the second preset height, the first torque T1 is greater than the second torque T2, and the torque difference drives the first moving part, the second moving part and the rotating body to rotate together in the first rotation direction, so that the lower end of the first moving part abuts against the inner bottom of the first water tank to close the drainage.

[0020] In some embodiments,

[0021] One side of the first moving part is a first cavity to withstand the gas pressure in the first cavity, and the other side of the first moving part is a second cavity to withstand the gas pressure in the second cavity. The first moving part separates the first cavity and the second cavity;

[0022] One side of the second moving part is also the first cavity to withstand the gas pressure in the first cavity, and the other side of the second moving part is the third cavity to withstand the gas pressure in the third cavity. The second moving part separates the first cavity and the third cavity.

[0023] The first cavity is connected to the evaporation chamber connection port, so that the pressure of the first cavity is equal to the suction pressure of the evaporation chamber, which is P1; the second cavity is connected to the outside atmosphere, and the pressure is P0; when a second water storage tank is also included, when the liquid level of the third cavity in the second water storage tank is lower than a third preset height, it is connected to the atmospheric pressure, and the pressure is P0; when the liquid level of the third cavity in the second water storage tank is greater than or equal to the third preset height, it is connected to the evaporation chamber, and the pressure is P1; when the liquid level in the second water storage tank is higher than the third preset height, the liquid level in the first water storage tank is lower than the second preset height; wherein P1<P0.

[0024] In some embodiments,

[0025] The torque on the first moving part is T1=(P1-P0)*D*L1², where D is the width of the first moving part and L1 is the length of the first moving part floating above the liquid surface;

[0026] When the liquid level in the second water storage tank is less than the third preset height, the third cavity is connected to the outside atmosphere, the pressure is P0, and the second torque on the second moving part is T2=(P1-P0)*D*L2², where D is the width of the second moving part and L2 is the length of the second moving part;

[0027] When the liquid level in the second water storage tank is greater than or equal to the third preset height, the third cavity is connected to the evaporation chamber, and the pressure is P1. At this time, the torque applied to the second moving part is T2=(P1-P1)*D*L2²=0, where D is the width of the second moving part and L2 is the length of the second moving part.

[0028] In some embodiments,

[0029] The rotating body is a bearing structure, including an inner ring, an outer ring and a first rolling body, one end of the first moving part is fixedly connected to the outer ring, one end of the second moving part is fixedly connected to the outer ring, and the first moving part, the outer ring and the second moving part can rotate as a whole;

[0030] The second moving part includes a sliding rod, a sleeve, an elastic structure and a second rolling body. The sleeve has an accommodating cavity inside. One end of the sleeve is fixed to the outer ring and the other end extends out to form a free end. The elastic structure is arranged in the accommodating cavity of the sleeve. One end of the sliding rod extends into the accommodating cavity and is connected to the elastic structure. The other end of the sliding rod extends out of the accommodating cavity to connect with the second rolling body. The elastic structure provides an elastic thrust to the sliding rod.

[0031] In some embodiments,

[0032] It also includes a fourth cavity and a movement cavity, the lower end of the movement cavity is connected to the second water storage tank, and when it also includes a floating structure, at least part of the floating structure is arranged in the movement cavity and can move up and down along the movement cavity;

[0033] When the liquid level in the second water storage tank is higher than a third preset height, the third cavity is connected to the evaporation cavity through the movement cavity and the fourth cavity in sequence; when the liquid level in the second water storage tank is lower than the third preset height, the third cavity is connected to the outside atmosphere through the movement cavity.

[0034] In some embodiments,

[0035] The housing comprises a first bottom plate, a first connecting plate, a second bottom plate, a second connecting plate and a third connecting plate located at the bottom, the first bottom plate is located at the lower end of the first moving member, one end of the first connecting plate is connected to one end of the first bottom plate, and the other end of the first connecting plate extends upward, so that the upper bottom of the first connecting plate and the upper bottom of the first bottom plate together form the first water storage tank;

[0036] At least part of the structure of the second bottom plate is located below the first bottom plate, one end of the second connecting plate is connected to one end of the second bottom plate, and the other end of the second connecting plate extends upward, the second connecting plate is located below the first bottom plate, one end of the third connecting plate is connected to one end of the second bottom plate, and the other end of the third connecting plate extends upward, and the second bottom plate, the second connecting plate and the third connecting plate together form the second water storage tank;

[0037] A first vent hole is formed between the upper end of the second connecting plate and the first bottom plate, so that the second cavity is connected to the outside atmosphere through the first vent hole, and the internal air pressure of the second cavity is the atmospheric pressure P0.

[0038] In some embodiments,

[0039] The apparatus further comprises a first partition plate, the first partition plate being located between the third cavity and the motion cavity so as to separate the third cavity from the motion cavity, the first partition plate being provided with a second vent hole, the second vent hole connecting the third cavity with the motion cavity;

[0040] The third connecting plate is also provided with a third vent hole and a fourth vent hole, and the third vent hole can connect the movement cavity with the outside atmosphere; the drainage hole is arranged on the third connecting plate at a position relative to the third vent hole and close to the second bottom plate or connected to the second bottom plate; the fourth vent hole can connect the movement cavity with the fourth cavity.

[0041] In some embodiments,

[0042] The floating structure is provided with a first communication channel, a second communication channel and a third communication channel inside, the first communication channel extends from the surface of the floating structure facing the first partition plate toward the inside of the floating structure, the first communication channel is communicated with the second vent hole, one end of the second communication channel is communicated with the first communication channel and the other end extends to the side of the floating structure facing the third connecting plate, one end of the third communication channel is communicated with the first communication channel and the other end extends to the side of the floating structure facing the third connecting plate; the second communication channel is located above the third communication channel;

[0043] When the liquid level in the second water storage tank is lower than the third preset height, the second air vent is connected to the third air vent through the first connecting channel and the third connecting channel in sequence, so that the third cavity is connected to the atmospheric pressure P0; when the liquid level in the second water storage tank is greater than or equal to the third preset height, the floating structure floats, and the second air vent is connected to the fourth air vent through the first connecting channel and the second connecting channel in sequence, so that the third cavity is connected to the pressure P1 of the evaporation chamber.

[0044] In some embodiments,

[0045] It also includes a second partition plate and a third partition plate, the second partition plate is arranged inside the shell, one end of the second partition plate is connected to the third connecting plate, and the other end extends toward the direction of the evaporation chamber connection port, the second partition plate is also connected to the first partition plate, so that the first partition plate, the second partition plate and the third connecting plate form the moving chamber, the third partition plate is located below the second partition plate, and one end of the third partition plate is connected to the lower end of the first partition plate, and the other end extends toward the direction of the evaporation chamber connection port, the second partition plate, the first partition plate, the third partition plate and the second moving part form the third cavity, and the third partition plate, the first moving part and the first bottom plate form the second cavity.

[0046] In some embodiments,

[0047] The second partition plate, the first moving member, the second moving member and the first bottom plate form the first cavity;

[0048] One end of the third partition plate is connected to the first partition plate, the other end of the third partition plate extends toward the evaporation chamber connection port, and the rotating body is arranged at the other end of the third partition plate;

[0049] In the projection surface of the vertical plane, the portion of the second partition plate relatively close to the evaporation chamber connection port is an arc segment structure, and the surface of the arc segment structure facing the bearing structure is an arc inner surface; when a second rolling body is included, the second rolling body is arranged in close contact with the arc inner surface, and the center of the arc segment structure is eccentric to the center of the rotating body.

[0050] In some embodiments,

[0051] It also includes a fourth connecting plate, a top plate and a fifth connecting plate, one end of the fourth connecting plate is connected to a side of the third connecting plate facing away from the motion chamber, and the position of the connecting end of the fourth connecting plate and the third connecting plate is located between the third air hole and the fourth air hole, the fourth air hole is located above the third air hole, the other end of the fourth connecting plate extends upward and is connected to the top plate, the top plate is located above the second partition plate, the second partition plate, the third connecting plate, the fourth connecting plate and the top plate surround the fourth cavity; the fifth connecting plate is connected to the upper end of the first connecting plate, the top plate is located above the fifth connecting plate and is spaced from the fifth connecting plate to form the evaporation chamber connection port.

[0052] In some embodiments,

[0053] The top plate, the fifth connecting plate, the first bottom plate and the second bottom plate are all flat plate structures extending in the horizontal direction; the first connecting plate is an inclined plate structure with an inclined angle to the horizontal direction; the second connecting plate, the third connecting plate and the first dividing plate are all flat plate structures extending in the vertical direction; the fourth connecting plate includes a first horizontal plate segment extending in the horizontal direction and a first vertical plate segment extending in the vertical direction that are connected; the second dividing plate includes a second horizontal plate segment and an arc plate segment that are connected in the horizontal direction; the third dividing plate includes a third horizontal plate segment extending in the horizontal direction, a second vertical plate segment extending in the vertical direction and a fourth horizontal plate segment extending in the horizontal direction that are connected in sequence; the rotating body is arranged at the free end of the fourth horizontal plate segment.

[0054] The utility model also provides an air conditioner, which comprises the aforementioned drainage device.

[0055] The utility model provides a drainage device and an air conditioner with the following beneficial effects:

[0056] 1. The utility model has a first water storage tank and a first moving part arranged inside the shell, and one end of the shell has an evaporation chamber connection port, which can receive condensed water generated by the evaporator, and can be discharged through the drainage hole after entering the first water storage tank. However, when passing through the first water storage tank, due to the arrangement of the first moving part, only when the liquid level in the first water storage tank rises to a first preset height, the first moving part can move to automatically open the first water storage tank, so that the drainage channel is automatically opened when the water storage amount is large, and when the drainage is carried out until the liquid level in the first water storage tank drops to a second preset height, the first moving part can automatically open the first water storage tank. When the water level is high, the first moving part moves to automatically close the drainage channel of the first water storage tank, so that the drainage is automatically closed when the water storage amount is small, to prevent the outside air from entering the evaporation chamber through the drainage hole via the first water storage tank, and then entering the cockpit and other spaces, thereby affecting the comfort. The drainage device of the utility model can avoid the outside hot air from being sucked into the cockpit during drainage, and reduce the pressure loss inside the evaporation chamber, so that more negative pressure can drive the internal circulating air, so that the evaporator heat exchange is more sufficient, and the system capacity energy efficiency is improved, that is, normal drainage can be achieved while also enhancing the heat exchange of the evaporator and improving energy efficiency.

[0057] 2. The utility model also sets a second water tank so that it can receive water discharged from the first water tank, and a floating structure can be set in the second water tank. In the normal drainage process, the water level in the second water tank does not exceed the third preset height, so that the cavity on the side of the second moving part is connected with the atmospheric pressure P0, and the first and second moving parts and the rotating body are continuously driven to rotate to open (or increase) the first moving part to drain water. After the water level in the second water tank exceeds the third preset height, the floating structure floats up, so that the third cavity is connected with the pressure of the evaporation chamber through the channel inside the floating structure, which is P1, from The torque generated by the second moving part is 0, so that the first moving part is driven to rotate through the torque at the first moving part and then connected with the bottom of the first water storage tank to close the drainage. The upper end of the second water storage tank also forms a first vent hole spaced apart from the lower end of the first water storage tank, so that the external atmospheric pressure is passed into the second cavity on one side of the first moving part, so that the two sides of the first moving part can always withstand the pressure P1 and the pressure P0, thereby achieving the effect of automatic drainage (higher liquid level in the first water storage tank) and automatic drainage closing (lower liquid level in the first water storage tank) according to the water level in the first water storage tank and by utilizing the external atmospheric pressure and the evaporation chamber pressure.

[0058] 3. The drainage device of the utility model can utilize the negative pressure inside the evaporation chamber for self-drive, and utilizes the condensed water to design a delay switch so that the device can perform periodic cycle work. Compared with the conventional drainage holes that are directly connected to the outside world and the hot air is directly sucked into the cockpit, the utility model can effectively improve the cooling capacity of the air-conditioning system. By adopting the device of the utility model, the pressure loss inside the evaporation chamber can also be reduced, so that more negative pressure drives the air-conditioning internal circulation, thereby ensuring that more cockpit air passes through the evaporator, making its heat exchange more sufficient, and improving the system capacity and energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a schematic diagram of the overall structure of the air conditioner of the utility model;

[0060] Figure 2 yes Figure 1 A top view of the structure of the whole air conditioner;

[0061] Figure 3 yes Figure 2 AA section view;

[0062] Figure 4 yes Figure 2 Middle BB section view;

[0063] Figure 5 It is a schematic diagram of the overall structure of the drainage device of the utility model;

[0064] Figure 6 It is a schematic diagram of the internal structure of the drainage device of the utility model after removing the front cover plate;

[0065] Figure 7 It is a schematic diagram of the internal front structure of the drainage device of the utility model;

[0066] Figure 8 yes Figure 7 A partial enlarged view of part C in the middle;

[0067] Figure 9a yes Figure 7 A three-dimensional structural diagram of the floating structure in FIG.

[0068] Figure 9b yes Figure 9a DD cross-sectional view;

[0069] Fig.10 It is a schematic diagram of the internal front structure of the drainage device of the utility model in the following state (without drainage);

[0070] Fig.11 This is a schematic diagram of the internal front structure of the drainage device of the utility model in state 2 (drainage)

[0071] Fig.12It is a structural diagram of the first moving part, the second moving part and the rotating body in the drainage device of the utility model;

[0072] Fig.13 yes Fig.12 Simple diagram of moment analysis.

[0073] The reference numerals are:

[0074] 100. Drainage device; 1. Shell; 2. Evaporation chamber connection port; 3. Drainage hole; 4. First water storage tank; 5. First moving member; 6. Second water storage tank; 7. Floating structure; 8. First bottom plate; 9. First connecting plate; 10. Second bottom plate; 11. Second connecting plate; 12. Third connecting plate; 13. Rotating body; 14. Second moving member; 15. Inner ring; 16. Outer ring; 17. First rolling body; 18. Sliding rod; 19. Sleeve ; 20, elastic structure; 21, second rolling body; 22, first vent; 23, first partition plate; 24, second vent; 25, third vent; 26, fourth vent; 27, second partition plate; 28, third partition plate; 29, fourth connecting plate; 30, top plate; 31, first connecting channel; 32, second connecting channel; 33, third connecting channel; 34, fifth connecting plate; 35, eccentric circular slide rail; 36, front cover;

[0075] 101, first cavity; 102, second cavity; 103, third cavity; 104, fourth cavity; 105, motion cavity;

[0076] 201, chassis; 202, evaporator; 203, evaporation chamber drain groove; 204, evaporator foam; 205, evaporation chamber; 206, air outlet; 207, fan; 208, return air outlet. DETAILED DESCRIPTION

[0077] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0078] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0079] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0080] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0081] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0082] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0083] like Figure 1-13 As shown, the utility model provides a drainage device (preferably a drainage device for a parking air conditioner (a drainage device for preventing outside air from entering the interior of the air conditioner)), which includes:

[0084] A housing 1, wherein the housing 1 has an evaporation chamber connection port 2 and a drainage hole 3, wherein the evaporation chamber connection port 2 is connected to the evaporation chamber of the air conditioner so as to receive condensed water generated in the evaporator, and the drainage hole 3 can discharge the condensed water inside the housing 1;

[0085] A first water storage tank 4 and a first moving part 5 are provided inside the shell 1, the evaporation chamber connection port 2 can be connected with the drainage hole 3 through the first water storage tank 4, the first moving part 5 can rotate in the first water storage tank 4, when the liquid level in the first water storage tank 4 rises to a first preset height, the first moving part 5 can move to automatically open the first water storage tank 4, when the liquid level in the first water storage tank 4 drops to a second preset height, the first moving part 5 can move to automatically close the first water storage tank 4; the second preset height is less than or equal to the first preset height.

[0086] The utility model has a first water storage tank and a first moving part arranged inside the shell, and one end of the shell has an evaporation chamber connection port, which can receive condensed water generated by the evaporator to enter, and can be discharged through the drainage hole after entering the first water storage tank. However, when passing through the first water storage tank, due to the arrangement of the first moving part, the first moving part can move to automatically open the first water storage tank only when the liquid level in the first water storage tank rises to a first preset height, so that the drainage channel is automatically opened to drain water when the water storage amount is large, and when the drainage is carried out until the liquid level in the first water storage tank drops to a second preset height. When the water level is low, the first moving part moves to automatically close the drainage channel of the first water storage tank, so that the drainage is automatically closed when the water storage amount is small, to prevent the outside air from entering the evaporation chamber through the drainage hole via the first water storage tank, and then entering the cockpit and other spaces, thereby affecting the comfort. The drainage device of the utility model can avoid the outside hot air from being sucked into the cockpit during drainage, and reduce the pressure loss inside the evaporation chamber, so that more negative pressure can drive the internal circulating air, so that the evaporator heat exchange is more sufficient, and the system capacity and energy efficiency are improved, that is, normal drainage can be achieved while enhancing the heat exchange of the evaporator and improving energy efficiency.

[0087] The first movable part of the utility model can move to automatically close the first water tank, which is preferably achieved by driving the different torques at the upper and lower ends of the first movable part through the pressure difference described later. Of course, other possible implementation methods are not excluded, including: using electromagnetic force, the weight of the lower end of the first movable part being greater than the weight of the upper end, etc., to achieve the resetting of the first movable part.

[0088] In some embodiments,

[0089] A second water tank 6 is also provided inside the shell 1, and the second water tank 6 is communicated with the drain hole 3, and the first water tank 4 is communicated with the evaporation chamber connection port 2. When the liquid level in the first water tank 4 rises to a first preset height, the first moving part 5 can move to its lower end to form a gap with the inner bottom of the first water tank 4, so that the first water tank 4 and the second water tank 6 are connected through the gap, and water is discharged from the first water tank 4 to the second water tank 6; when the liquid level in the first water tank 4 drops to a second preset height, the first moving part 5 can move to its lower end to abut against the inner bottom of the first water tank 4, and automatically close the connection between the first water tank 4 and the second water tank 6.

[0090] This is a further preferred structural form of the drainage device of the utility model. Through the arrangement of the second water tank, condensed water discharged from the first water tank can be received, and a floating structure can be arranged in the second water tank, which can automatically change the torque applied to the first moving part according to the water level in the second water tank. When the water level in the second water tank is too high, it reflects that the water level in the first water tank is too low. At this time, the connection between the first water tank and the second water tank can be automatically closed, effectively realizing automatic closure of drainage when the water level in the first water tank is too low, preventing air from entering the evaporation chamber from the outside through the second and first water tanks, ensuring normal heat exchange, and enhancing the performance of preventing air leakage.

[0091] During normal drainage, the water level in the second water storage tank does not exceed the third preset height, so that the cavity on one side of the second moving part is connected with the atmospheric pressure P0, and the first and second moving parts and the rotating body are continuously driven to rotate to open (or increase) the first moving part for drainage. After the water is drained to the point where the water level in the second water storage tank exceeds the third preset height, the floating structure floats up, so that the third cavity is connected with the pressure of the evaporation chamber through the channel inside the floating structure, which is P1, so that the torque generated by the second moving part is 0, so that the first moving part is driven to rotate through the torque at the first moving part and then connected to the bottom of the first water storage tank to close the drainage. The upper end of the second water storage tank also forms a first vent hole spaced apart from the lower end of the first water storage tank, so that the external atmospheric pressure is passed into the second cavity on one side of the first moving part, so that both sides of the first moving part can always withstand the pressure P1 and the pressure P0, and the effect of automatically draining the water (the liquid level in the first water storage tank is higher) and automatically closing the drainage (the liquid level in the first water storage tank is lower) according to the water level in the first water storage tank and using the external atmospheric pressure and the evaporation chamber pressure is achieved.

[0092] In some embodiments,

[0093] The inner bottom height of the second water storage tank 6 is lower than the inner bottom height of the first water storage tank 4;

[0094] A floating structure 7 is also provided in the second water tank 6. The floating structure 7 can float on the liquid surface of the second water tank 6 and can move up and down with the liquid level in the second water tank 6. The floating structure 7 floats upward to open the drainage hole 3. The flow area of ​​the drainage hole 3 is set to have a flow rate through it that is smaller than the flow rate from the first water tank 4 to the second water tank 6. When the liquid level in the second water tank 6 rises to a third preset height, the first moving member 5 moves until its lower end abuts against the inner bottom of the first water tank 4 to close the connection between the first water tank 4 and the second water tank 6.

[0095] This is a further preferred structural form of the second water tank of the utility model. The inner bottom height is set to be lower than the inner bottom height of the first water tank, so that the second water tank can smoothly receive the drainage from the first water tank. Through the setting of the floating structure, it can automatically float up and down with the liquid level in the second water tank, thereby controlling the pressure on one side of the second moving part to automatically change when the water level is too high, so that the first moving part forms a return motion, forms abutment with the inner bottom of the first water tank, and automatically closes the connection between the first and second water tanks.

[0096] In some embodiments,

[0097] A rotating body 13 and a second moving member 14 are also provided inside the housing 1. One end of the first moving member 5 is connected to the rotating body 13 and the other end thereof extends toward a first direction. One end of the second moving member 14 is connected to the rotating body 13 and the other end thereof extends toward a second direction. The first direction and the second direction are different directions. Both the first moving member 5 and the second moving member 14 can rotate integrally with the rotating body 13.

[0098] When the liquid level in the first water storage tank 4 rises to a first preset height, the first torque T1 received by the first moving member 5 is smaller than the second torque T2 received by the second moving member 14, so that the first moving member 5 rotates to form a gap with the inner bottom of the first water storage tank 4, thereby opening the first water storage tank 4;

[0099] When the liquid level in the first water tank 4 drops to a second preset height, the first torque T1 applied to the first moving member 5 is greater than the second torque T2 applied to the second moving member 14, so that the first moving member 5 rotates to connect with the inner bottom of the first water tank 4, thereby closing the first water tank 4.

[0100] The utility model can also make the first moving part, the second moving part and the rotating body rotate as a whole through the arrangement of the rotating body and the second moving part, and the first moving part generates a first torque by bearing force on both sides, and the second moving part generates a second torque by bearing force on both sides. By controlling the size relationship between the first and second torques, the drainage of the first water storage tank can be automatically controlled to open when the liquid level in the first water storage tank is too high, and the drainage of the first water storage tank can be automatically controlled to close when the liquid level in the first water storage tank drops to too low. The torque is used to automatically open the drainage channel for drainage when the water storage volume is large, and automatically close the drainage when the water storage volume is small. Normal drainage can be achieved while preventing air leakage and preventing external air from entering the evaporation chamber, thereby ensuring the heat exchange of the evaporator and improving energy efficiency.

[0101] In some embodiments,

[0102] Both sides of the rotation direction of the first moving member 5 are subjected to gas pressure to form a first pressure difference in the first rotation direction, and the first pressure difference acts on the first moving member 5 to form a first torque T1. Both sides of the rotation direction of the second moving member 14 are subjected to gas pressure to form a second pressure difference in the second rotation direction, and the second pressure difference acts on the second moving member 14 to form a second torque T2. The first rotation direction is opposite to the second rotation direction.

[0103] When the liquid level in the first water storage tank 4 is greater than or equal to the first preset height, the first torque T1 is less than the second torque T2, and the torque difference drives the first moving part 5, the second moving part 14 and the rotating body 13 to rotate together in the second rotation direction, so that the lower end of the first moving part 5 forms a gap with the inner bottom of the first water storage tank 4 to drain water; when the liquid level in the first water storage tank 4 is less than or equal to the second preset height, the first torque T1 is greater than the second torque T2, and the torque difference drives the first moving part 5, the second moving part 14 and the rotating body 13 to rotate together in the first rotation direction, so that the lower end of the first moving part 5 abuts against the inner bottom of the first water storage tank 4 to close the drainage.

[0104] The utility model also forms a pressure difference on both sides of the first moving part and the second moving part, that is, both sides of the first moving part are subjected to gas pressure to form a first pressure difference, and the first torque T1 is formed by the first pressure difference acting on the first moving part, and the second torque T2 is formed by the second pressure difference acting on the second moving part, so that the two torques can be controlled to change by controlling the two pressure differences to change. Further, when the liquid level in the first water storage tank is too high, the change in torque can be effectively generated by the change in the pressure difference, and the drainage of the first water storage tank can be automatically controlled to open. When the liquid level in the first water storage tank drops to too low, the drainage of the first water storage tank is automatically controlled to close. By controlling the pressure difference, the drainage channel is automatically opened to drain when the water storage amount is large, and the drainage is automatically closed when the water storage amount is small. Normal drainage can be achieved while preventing air leakage and preventing external air from entering the evaporation chamber, thereby ensuring the heat exchange of the evaporator and improving energy efficiency.

[0105] In some embodiments,

[0106] One side of the first moving part 5 is a first cavity 101 to withstand the gas pressure in the first cavity 101, and the other side of the first moving part 5 is a second cavity 102 to withstand the gas pressure in the second cavity 102. The first moving part 5 separates the first cavity 101 and the second cavity 102;

[0107] One side of the second moving part 14 is also the first cavity 101 to withstand the gas pressure in the first cavity 101. The other side of the second moving part 14 is the third cavity 103 to withstand the gas pressure in the third cavity 103. The second moving part 14 separates the first cavity 101 and the third cavity 103.

[0108] The first cavity 101 is connected to the evaporation chamber connection port 2, so that the pressure of the first cavity 101 is equal to the suction pressure of the evaporation chamber, which is P1; the second cavity 102 is connected to the outside atmosphere, and the pressure is P0; when it also includes a second water storage tank 6, the third cavity 103 is connected to the atmospheric pressure when the liquid level height in the second water storage tank 6 is lower than the third preset height, and the pressure is P0; the third cavity 103 is connected to the evaporation chamber when the liquid level height in the second water storage tank 6 is greater than or equal to the third preset height, and the pressure is P1; when the liquid level in the second water storage tank 6 is higher than the third preset height, the liquid level in the first water storage tank 4 is lower than the second preset height, and P0>P1.

[0109] This is a further preferred structural form of the drainage device of the utility model, that is, on one side of the first moving part is the first cavity, the first cavity is connected to the evaporation cavity to form a pressure P1, and on the other side is the second cavity, the second cavity is connected to the outside atmosphere to form a pressure P0. Since the evaporation cavity is the suction pressure, its pressure is less than the outside atmospheric pressure; and one side of the second moving part is P1 which also has an evaporation pressure, and the other side is subjected to a variable pressure according to the water level in the second water storage tank. When the water level in the second water storage tank is too high, the third cavity is connected to the evaporation cavity to form an evaporation pressure P1, thereby driving the first, second and rotating bodies to rotate, such as Figure 7 As shown, it rotates in a clockwise direction, and the first moving part abuts against the inner bottom of the first water storage tank to close the drainage of the first water storage tank. This situation is applicable to the situation when the water level in the first water storage tank is lower than the second preset height during the drainage process; when the water level in the second water storage tank does not exceed the third preset height, the third cavity is connected to the outside atmosphere and has a pressure P0. At this time, when the liquid level in the first water storage tank does not exceed the first preset height, the drainage is closed, and when it exceeds the first preset height, the first and second moving parts rotate as one to open the drainage, thereby achieving the effect of effectively closing the drainage when the water level in the first water storage tank is too low during the drainage process, achieving normal drainage while preventing air leakage and preventing external air from entering the evaporation chamber, thereby ensuring the heat exchange of the evaporator and improving energy efficiency.

[0110] The drainage device of the utility model can utilize the negative pressure inside the evaporation chamber for self-drive, and at the same time utilizes the condensed water design delay switch to enable the device to perform periodic cycle work. Compared with the conventional drainage hole that is directly connected to the outside world, the hot air is directly sucked into the cockpit. The utility model can effectively improve the refrigeration capacity of the air-conditioning system. By adopting the device of the utility model, the pressure loss inside the evaporation chamber can also be reduced, so that more negative pressure drives the air conditioning internal circulation, thereby ensuring that more cockpit air passes through the evaporator, making its heat exchange more sufficient, and improving the system capacity and energy efficiency.

[0111] In some embodiments,

[0112] The torque on the first moving part 5 is T1=(P1-P0)*D*L1², where D is the width of the first moving part 5, and L1 is the length of the first moving part 5 floating above the liquid surface;

[0113] When the liquid level in the second water storage tank 6 is less than the third preset height, the third cavity 103 is connected to the outside atmosphere, and the pressure is P0. At this time, the second torque on the second moving part 14 is T2=(P1-P0)*D*L2², where D is the width of the second moving part 14, and L2 is the length of the second moving part 14;

[0114] When the liquid level in the second water storage tank 6 is greater than or equal to the third preset height, the third cavity 103 is connected to the evaporation chamber, and the pressure is P1. At this time, the torque applied to the second moving part 14 is T2=(P1-P1)*D*L2²=0, where D is the width of the second moving part 14, and L2 is the length of the second moving part 14.

[0115] This is a method for calculating the torque generated by the pressure difference between the first moving part and the second moving part of the utility model. The pressure difference between the first moving part and the second moving part varies with the height of the water level. This is because Figure 10-11 As shown, the first moving part below the water surface in the first cavity on the left is not subjected to the pressure of P1, and the liquid pressure below the water surface acting on the first moving part is much greater than the gas pressure P0 in the second cavity relative to the height, so the pressure difference on both sides of the first moving part only considers the part above the water surface; and when the liquid level in the second water storage tank is less than the third preset height during drainage, the floating structure does not float to the corresponding height, and the third cavity cannot be connected to the evaporation cavity. At this time, the third cavity is still connected to the outside atmosphere, and the pressure is P0. At this time, drainage continues, and after the liquid level in the second water storage tank is greater than or equal to the third preset height during drainage, the third cavity is connected to the evaporation cavity, and the pressure is P1, so that the pressure on both sides of the second moving part is equal to P1, and the generated torque T2=0, at this time, the torque of the first moving part is greater than the torque of the second moving part, which will drive the first and second moving parts to rotate clockwise as a whole (such as Figure 7 , 10 -11) rotates to close the drainage, so as to automatically open the drainage when the water level in the first water storage tank is too high, and effectively close the drainage when the water level in the first water storage tank is too low during the drainage process. While achieving normal drainage, it can also prevent air leakage and prevent external air from entering the evaporation chamber, thereby ensuring the heat exchange of the evaporator and improving energy efficiency.

[0116] In some embodiments,

[0117] The rotating body 13 is a bearing structure, including an inner ring 15, an outer ring 16 and a first rolling body 17, one end of the first moving part 5 is fixedly connected to the outer ring 16, one end of the second moving part 14 is fixedly connected to the outer ring 16, and the first moving part 5, the outer ring 16 and the second moving part 14 can rotate as a whole;

[0118] The second moving part 14 includes a sliding rod 18, a sleeve 19, an elastic structure 20 and a second rolling body 21. The sleeve 19 has an accommodating cavity inside. One end of the sleeve 19 is fixed to the outer ring 16 and the other end extends out to form a free end. The elastic structure 20 is arranged in the accommodating cavity of the sleeve 19. One end of the sliding rod 18 extends into the accommodating cavity and is connected to the elastic structure 20. The other end of the sliding rod 18 extends out of the accommodating cavity to connect with the second rolling body 21. The elastic structure 20 provides an elastic thrust to the sliding rod 18.

[0119] This is the preferred structural form of the rotating body and the second moving part of the utility model. The rotating body is preferably a bearing structure with inner and outer rings and a first rolling body. The outer ring is respectively connected to the first moving part and the second moving part and rotates as a whole. The second moving part preferably includes a sliding rod, a sleeve, an elastic structure and a second rolling body. The sliding rod can slide in the sleeve. The elastic structure always abuts the sliding rod against the second partition plate to ensure the seal between the first cavity and the third cavity, and can increase the torque of the second moving part as the protruding part of the sliding rod increases, that is, it can continuously increase the rotation angle of the first and second moving parts during the drainage process, increase the interval space for opening drainage of the first water tank, and improve the drainage performance. The second rolling body can form rolling friction between it and the inner wall of the second partition plate, reduce friction resistance, and improve the performance and effect of rotating to open and close drainage.

[0120] The detailed structural composition and functional description of the drainage device of the utility model are as follows: Figure 7 It can be seen that the interior of the device is composed of an evaporation chamber connection port 2, a first water storage tank 4, a first vent 22, a second vent 24, a second water storage tank 6, a drain hole 3, a floating structure 7 (preferably an airway switching float), a third vent 25, and a fourth vent 26; Figure 8It can be seen that the blade assembly (including the first moving part 5, the second moving part 14 and the rotating body 13), the second moving part 14 includes a second rolling body 21 (preferably a small pulley), a sliding rod 18 (i.e., a retractable blade), a sleeve 19 (i.e., a blade slide), an elastic structure 20 (preferably a spring), and a rotating body 13 (preferably a bearing, and more preferably a ball bearing); when the device is in operation, the retractable blade (sliding rod 18) and the first moving part 5 can rotate around the central axis of the bearing, wherein the retractable blade can freely retract along the blade slide, and the spring is installed at the end of the blade, which can support the retractable blade to ensure that the small pulley is always in contact with the inner wall of the eccentric circular slide 35. The function of the small pulley is to reduce the friction between the blade and the inner wall of the slide. The center of the eccentric circular slide 35 is eccentric relative to the central axis of the bearing. The function of the eccentric circular slide is that when the blade assembly in the figure rotates counterclockwise around the bearing (at this time, the length of the second moving part 14 is greater than the length of the first moving part 5, so that the torque T2 of the second moving part is greater than the torque T1 of the first moving part, thereby realizing counterclockwise rotation), the retractable blade can have space to extend along the blade slide groove under the ejection action of the spring (preferably, the center of the eccentric circle is located at the lower left of the bearing center, and the retractable blade is ejected by the spring while rotating clockwise so that the small pulley and the eccentric circular slide are always in contact, and L2 also slowly becomes longer accordingly as the blade rotates counterclockwise, so that L2>L1 can be maintained at all times.).

[0121] like Fig.12 , simplify the blade model, and simplify the distance from the end of the small pulley to the center of the bearing to L2. The length of L2 can be changed accordingly according to the extension and contraction of the retractable blade; for the first moving part 5, the distance from the center of the bearing to the surface of the condensed water is the effective distance of the air pressure on the blade, which is set to L1. The length of L1 can be changed accordingly according to the height of the water surface. And in the initial state such as Figure 7 State, L1>L2.

[0122] like Figure 9a-9b The structure of the airway switching float block is shown in FIG. 1 . The structure has two communication ports: a second communication channel 32 and a third communication channel 33. The density of the float block material is lower than that of water. When the second water storage tank 6 stores water, the float block can float up with the rise of the water level. When the float block cooperates with the housing of the drainage device, there are two states: (a) State 1: Fig.10 , the second vent hole 24, the third communication channel 33 of the airway switching float and the third vent hole 25 are connected to each other. (b) State 2: Fig.11 The second vent hole 24, the second connecting passage 32 of the airway switching float and the fourth vent hole 26 are connected to each other.

[0123] The following is a description of the working principle of the device: Fig.10As shown, the device is connected to the evaporation chamber side and there is an evaporation chamber suction negative pressure set to P1, and the air pressure connected to the outside air is P0. The entire device is divided into three chambers by the inner wall and the blades: the first chamber 101, the second chamber 102, and the third chamber 103. Fig.13 , perform torque analysis on the blades: for the retractable blades (the sliding rod 18 of the second moving part 14), the blades have a torque T2 on the center of the bearing; for the first moving part 5 (preferably the blades), it has a torque T1 on the center of the bearing. Assuming that the pressure acting on the blades is F, the area of ​​the blades is S, the length of the blades is L, and the width of the blades is D, then the area S=LD; from the pressure and pressure relationship formula: P=F / S; torque formula: T=FL; then T=PDL². When the device is in state one, due to the action of gravity, the bottom of the airway switching float contacts the bottom of the second water storage tank 6, and at this time, the second vent 24, the third connecting channel 33 of the airway switching float, and the third vent 25 are interconnected. The pressures of the three chambers are as follows: (a) The first chamber 101: The pressure of this chamber connected to the evaporation chamber is P1; (b) The third chamber 103: This chamber is connected to the atmosphere through the second vent 24, the third connecting channel 33 of the airway float and the third vent 25, so that the chamber is connected to the atmosphere, and the pressure is P0; (c) The second chamber 102, this chamber is connected to the atmosphere through the first vent 22, and the pressure is P0. At this time, the torque on the retractable blade is T2=(P1-P0)*D*L2², and the direction of action is counterclockwise around the central axis of the bearing. The torque on the first moving part 5 is T1=(P1-P0)*D*L1², and the direction of action is clockwise around the central axis of the bearing.

[0124] Combining the two equations, we have T2 / T1=L2² / L1². Since L1>L2 in this state, we have T1>T2. Therefore, the blade assembly as a whole is subjected to a clockwise torque T1-T2. At this time, the end of the first moving part 5 is in contact with the bottom of the first water tank 4 and is in a closed state. When the air conditioner is running, condensed water is generated and discharged to the first water tank 4. As the water level gradually rises, L1 also gradually becomes shorter. When the water in the first water tank 4 is stored to a certain amount, there is a moment when L2>L1. At this time, T2>T1. The blade as a whole is subjected to a counterclockwise torque T2-T1. At this time, the blade rotates counterclockwise. While rotating, the retractable blade is pushed out by the spring so that the small pulley and the eccentric circular slide rail always keep in contact. L2 also slowly becomes longer as the blade rotates counterclockwise, and L2>L1 can be maintained at all times. In this process, T1 is always greater than T2, and the blade assembly keeps rotating counterclockwise. If Fig.11When the blade assembly rotates counterclockwise, a gap is opened between the end of the first moving part 5 and the bottom of the first water tank 4, and the water in the first water tank 4 is discharged to the second water tank 6. The water in the second water tank 6 is also discharged to the outside through the drainage hole. The opening size of the drainage hole of the second water tank 6 is adjusted to make the drainage water flow rate smaller than the water flow from the first water tank 4 to the second water tank 6. Then, the second water tank 6 will gradually become full, and the airway switching float will also slowly float upward as the water level rises. When the water volume in the second water tank 6 reaches a certain amount, the airway switching float reaches Fig.11 state, at this time, the second vent hole 24, the second connecting channel 32 of the airway switching float and the fourth vent hole 26 are interconnected, then the first cavity 101 and the third cavity 103 are interconnected, and the pressure of the third cavity 103 changes from P0 to P1, then the torque of the retractable blade is T2=(P1-P1)*D*L2²=0, and the forces on both sides of the blade are balanced. At this time, the torque of the first moving part 5 is T1=(P1-P0)*D*L1²>0, then the whole blade assembly is subjected to a clockwise torque T1-T2=T1, and the whole blade assembly rotates clockwise until it returns to the state as shown in the figure. Fig.10 State 1: The end of the first moving part 5 is in close contact with the bottom of the first water storage tank 4. This cycle is repeated. When the water is full, it is discharged, and when it is almost drained, it is closed. It is ensured that the outside air is not sucked into the evaporation chamber during the whole process. It can also ensure smooth drainage while reducing the pressure loss inside the evaporation chamber, so that more negative pressure drives the circulating air in the cockpit, making the evaporator heat exchange more sufficient, thereby improving the system capacity and energy efficiency.

[0125] In some embodiments,

[0126] It also includes a fourth cavity 104 and a movement cavity 105, the lower end of the movement cavity 105 is connected to the second water storage tank 6, and when it also includes a floating structure 7, at least part of the floating structure 7 is arranged in the movement cavity 105 and can move up and down along the movement cavity 105;

[0127] When the liquid level in the second water storage tank 6 is higher than the third preset height, the third cavity 103 is connected to the evaporation cavity through the movement cavity 105 and the fourth cavity 104 in sequence; when the liquid level in the second water storage tank 6 is lower than the third preset height, the third cavity 103 is connected to the outside atmosphere through the movement cavity 105.

[0128] The utility model can also connect the third chamber with the evaporation chamber through the arrangement of the fourth chamber, and can accommodate the floating structure to move up and down therein through the movement chamber, and the movement chamber is connected between the third chamber and the fourth chamber, or the movement chamber is connected between the third chamber and the outside atmosphere. Whether the third chamber is connected with the evaporation chamber or with the outside atmosphere depends on the height of the water level in the second water storage tank and the height to which the floating structure floats upward, so that when the water level is too high, the third chamber is connected with the evaporation chamber and the drainage is automatically closed, and when the water level is not too high, the third chamber is connected with the outside atmosphere and the drainage continues or the original state is maintained.

[0129] In some embodiments,

[0130] The housing 1 includes a first bottom plate 8, a first connecting plate 9, a second bottom plate 10, a second connecting plate 11 and a third connecting plate 12 located at the bottom, the first bottom plate 8 is located at the lower end of the first moving member 5, one end of the first connecting plate 9 is connected to one end of the first bottom plate 8, and the other end of the first connecting plate 9 extends upward, so that the upper bottom of the first connecting plate 9 and the upper bottom of the first bottom plate 8 together form the first water storage tank 4;

[0131] At least part of the structure of the second bottom plate 10 is located below the first bottom plate 8, one end of the second connecting plate 11 is connected to one end of the second bottom plate 10, and the other end of the second connecting plate 11 extends upward, the second connecting plate 11 is located below the first bottom plate 8, one end of the third connecting plate 12 is connected to one end of the second bottom plate 10, and the other end of the third connecting plate 12 extends upward, and the second bottom plate 10, the second connecting plate 11 and the third connecting plate 12 together form the second water storage tank 6;

[0132] A first vent hole 22 is formed between the upper end of the second connecting plate 11 and the first bottom plate 8 , so that the second cavity 102 is connected to the outside atmosphere through the first vent hole 22 , and the internal air pressure of the second cavity 102 is the atmospheric pressure P0 .

[0133] This is the preferred structural form of the shell of the utility model. The first bottom plate and the first connecting plate can form the structure of the first water storage tank, the second bottom plate, the second connecting plate and the third connecting plate can form the structure of the second water storage tank, the second connecting plate is located below the first bottom plate and is separated from the first bottom plate to form a first vent hole, and the first vent hole can connect the second cavity with the outside atmosphere to keep its pressure always at P0, thereby providing conditions for providing torque.

[0134] In some embodiments,

[0135] The first partition plate 23 is located between the third cavity 103 and the movement cavity 105 to separate the third cavity 103 and the movement cavity 105. The first partition plate 23 is provided with a second vent hole 24, and the second vent hole 24 connects the third cavity 103 with the movement cavity 105.

[0136] The third connecting plate 12 is also provided with a third vent hole 25 and a fourth vent hole 26, and the third vent hole 25 can connect the movement cavity 105 with the outside atmosphere; the drainage hole 3 is arranged on the third connecting plate 12 at a position close to the second bottom plate 10 or connected to the second bottom plate 10 relative to the third vent hole 25; the fourth vent hole 26 can connect the movement cavity 105 with the fourth cavity 104.

[0137] This is a further preferred structural form of the drainage device of the utility model. The third cavity and the movement cavity can be separated by the first partition plate, and the third cavity and the movement cavity can be connected through the second vent hole on the first partition plate. The third connecting plate extends upward to a longer height (such as Figure 6 ) to separate a movement chamber from the first partition plate, a drainage hole is set at the bottom end of the third connecting plate or near the bottom end to enable drainage, the third ventilation hole can achieve communication between the movement chamber and the outside atmosphere, and the fourth ventilation hole can achieve communication between the movement chamber and the fourth cavity.

[0138] In some embodiments,

[0139] The floating structure 7 is provided with a first communication channel 31, a second communication channel 32 and a third communication channel 33 inside. The first communication channel 31 extends from the surface of the floating structure 7 facing the first partition plate 23 toward the inside of the floating structure 7. The first communication channel 31 is communicated with the second vent hole 24. One end of the second communication channel 32 is communicated with the first communication channel 31 and the other end extends to the side of the floating structure 7 facing the third connecting plate 12. One end of the third communication channel 33 is communicated with the first communication channel 31 and the other end extends to the side of the floating structure 7 facing the third connecting plate 12. The second communication channel 32 is located above the third communication channel 33.

[0140] When the liquid level in the second water storage tank 6 is lower than the third preset height, the second air vent 24 is connected to the third air vent 25 through the first connecting channel 31 and the third connecting channel 33 in sequence, so that the third cavity 103 is connected to the atmospheric pressure P0; when the liquid level in the second water storage tank 6 is greater than or equal to the third preset height, the floating structure 7 floats, and the second air vent 24 is connected to the fourth air vent 26 through the first connecting channel 31 and the second connecting channel 32 in sequence, so that the third cavity 103 is connected to the pressure P1 of the evaporation chamber.

[0141] This is the preferred structural form of the floating structure of the utility model. Through the first, second and third connecting channels opened inside the floating structure, the first connecting channel can always be connected to the second vent (the first connecting channel is longer in the vertical direction), and the second connecting channel can be connected to the fourth vent only when the floating structure moves upward to a higher position. This situation is applicable to the case where the water level in the second water storage tank is high (exceeding the third preset height) and the third cavity is connected to the fourth cavity through the first and second connecting channels, the fourth vent and the second vent, so that the left and right sides of the second moving part are subjected to pressure P1, thereby achieving the effect of automatically closing the drainage; and the third connecting channel can maintain the fluid with the third vent when the moving position of the floating structure does not exceed the third preset height, so that the third cavity is connected to the outside atmosphere through the second vent, the first and third connecting channels and the third vent, thereby achieving the normal drainage process when the water level in the second water storage tank is not high.

[0142] In some embodiments,

[0143] It also includes a second partition plate 27 and a third partition plate 28, the second partition plate 27 is arranged inside the shell 1, one end of the second partition plate 27 is connected to the third connecting plate 12, and the other end extends toward the direction of the evaporation chamber connection port 2, the second partition plate 27 is also connected to the first partition plate 23, so that the first partition plate 23, the second partition plate 27 and the third connecting plate 12 form the moving chamber 105, the third partition plate 28 is located below the second partition plate 27, and one end of the third partition plate 28 is connected to the lower end of the first partition plate 23, and the other end extends toward the direction of the evaporation chamber connection port 2, the second partition plate 27, the first partition plate 23, the third partition plate 28 and the second moving part 14 form the third cavity 103, and the third partition plate 28, the first moving part 5 and the first bottom plate 8 form the second cavity 102.

[0144] In some embodiments,

[0145] The second partition plate 27, the first moving member 5, the second moving member 14 and the first bottom plate 8 form the first cavity 101;

[0146] One end of the third partition plate 28 is connected to the first partition plate 23, and the other end of the third partition plate 28 extends toward the evaporation chamber connection port 2, and the rotating body 13 is disposed at the other end of the third partition plate 28;

[0147] In the projection surface of the vertical plane, the portion of the second partition plate 27 relatively close to the evaporation chamber connection port 2 is an arc segment structure, and the surface of the arc segment structure facing the bearing structure is an arc inner surface; when the second rolling body 21 is included, the second rolling body 21 is arranged in contact with the arc inner surface (the two are rollingly fitted or slidingly fitted when they move relative to each other), and the center of the arc segment structure is eccentric to the center of the rotating body 13.

[0148] This is a further preferred structural form of the drainage device of the utility model. By eccentricity between the center of the arc segment structure and the center of the rotating body, the sliding rod can be extended to a greater length during the left (counterclockwise) rotation, thereby gradually increasing the channel area of ​​the first moving part that opens for drainage during the drainage process and improving the drainage efficiency.

[0149] In some embodiments,

[0150] The fourth connecting plate 29 also includes a fourth connecting plate 29, a top plate 30 and a fifth connecting plate 34, one end of the fourth connecting plate 29 is connected to a side of the third connecting plate 12 facing away from the motion chamber 105, and the position of the connecting end of the fourth connecting plate 29 and the third connecting plate 12 is located between the third ventilation hole 25 and the fourth ventilation hole 26, the fourth ventilation hole 26 is located above the third ventilation hole 25, the other end of the fourth connecting plate 29 extends upward and is connected to the top plate 30, the top plate 30 is located above the second partition plate 27, the second partition plate 27, the third connecting plate 12, the fourth connecting plate 29 and the top plate 30 surround the fourth cavity 104; the fifth connecting plate 34 is connected to the upper end of the first connecting plate 9, the top plate 30 is located above the fifth connecting plate 34 and is spaced from the fifth connecting plate 34 to form the evaporation chamber connection port 2.

[0151] The utility model can also form a fourth cavity by setting a fourth connecting plate and a top plate, and the fifth connecting plate and the top plate can form an evaporation cavity connection port to connect with the evaporation cavity and effectively receive condensed water generated by the evaporation cavity; the fourth connecting plate is set above the fourth air vent and the third air vent, so that the fourth air vent can communicate the evaporation pressure in the fourth cavity with the third cavity, and the third air vent can communicate the external atmospheric pressure with the third cavity, so as to realize the function of automatically closing the drainage when the water level in the second water storage tank is too high, prevent external gas from entering the evaporation cavity, realize the effect of preventing air leakage, and improve the evaporation performance of the evaporator.

[0152] In some embodiments,

[0153] The top plate 30, the fifth connecting plate 34, the first bottom plate 8, and the second bottom plate 10 are all flat plate structures extending in the horizontal direction; the first connecting plate 9 is an inclined plate structure with an inclined angle to the horizontal direction; the second connecting plate 11, the third connecting plate 12, and the first partition plate 23 are all flat plate structures extending in the vertical direction; the fourth connecting plate 29 includes a first horizontal plate segment extending in the horizontal direction and a first vertical plate segment extending in the vertical direction that are connected; the second partition plate 27 includes a second horizontal plate segment and an arc plate segment that are connected in the horizontal direction; the third partition plate 28 includes a third horizontal plate segment extending in the horizontal direction, a second vertical plate segment extending in the vertical direction, and a fourth horizontal plate segment extending in the horizontal direction that are connected in sequence; the rotating body 13 is provided at the free end of the fourth horizontal plate segment.

[0154] This is the preferred structural form of the top plate, fifth connecting plate, first bottom plate, second bottom plate and first connecting plate, second connecting plate, third connecting plate, first dividing plate, fourth connecting plate, second dividing plate and third dividing plate of the utility model, which can effectively realize the effect of automatically opening the drainage when the water level in the first water tank is too high, and automatically closing the drainage when the water level in the second water tank is too high (that is, the water level in the first water tank is too low during the drainage process), thereby realizing the effect of preventing air leakage.

[0155] The utility model also provides an air conditioner (preferably a parking air conditioner), which includes the aforementioned drainage device. The drainage device of the utility model is preferably applied to a roof-mounted parking air conditioner, and the layout is as follows: Figure 1 The device is installed on one side of the drain hole of the evaporator assembly and is fixedly installed using the chassis 201. Figure 3 As can be seen from the cross-sectional view A of the whole machine, the housing 1 of the drainage device is tightly connected to the evaporator foam 204 and the chassis 201 to ensure sealing. When the air conditioner is running, the evaporator 202 will produce condensed water, which will flow into the drainage device of the utility model along the drainage groove of the evaporation chamber 205. Figure 4As can be seen from the cross-sectional view B of the whole machine, when the air conditioner is running, the fan 207 is driven to rotate so that a negative pressure P1 lower than the atmospheric pressure exists in the entire cavity of the evaporation chamber 205, so that the hot air in the cab passes through the evaporator 202 through the return air port 208 for heat exchange, and the cold air after heat exchange is blown into the cab through the air outlet 206. The drainage device of the utility model utilizes the negative pressure P1 inside the evaporation chamber to self-drive the rotation of the torque difference of the blades inside the device.

[0156] The utility model discloses a drainage device for a parking air conditioner, which comprises an evaporation chamber, a drainage device, and blades (first and second moving parts). Due to the internal fan driving the evaporation chamber, there is a negative pressure P1 inside the entire cavity that is lower than the external atmospheric pressure. The negative pressure drives the cockpit air to enter from the air inlet of the air conditioner, pass through the evaporator for heat exchange, and then blow out from the air outlet for internal circulation heat exchange. Taking advantage of the negative pressure inside the evaporation chamber, a device is designed to use the torque difference of the blades inside the device to self-drive rotation by using the pressure difference. At the same time, the delay switch structure is designed by using condensed water and airway switching floats to change the pressure on the blades so that the device can work periodically. The device is driven by the negative pressure of the air conditioner evaporation chamber itself, and uses condensed water to control the blades (first moving part 5) to open or close the drainage, without the need for an additional power source. The device can avoid the external hot air from being sucked into the cockpit during drainage, and reduce the pressure loss inside the evaporation chamber, so that more negative pressure drives the internal circulation air, so that the evaporator heat exchange is more sufficient, and the system capacity and energy efficiency are improved.

[0157] The utility model solves the following technical problems:

[0158] 1. Solved the problem of increased cockpit temperature and decreased refrigeration capacity due to the fact that the drainage hole of the evaporation chamber is directly connected to the outside world and the hot air from the outside is directly sucked into the cockpit.

[0159] 2. The problem of weakened internal circulation heat exchange capacity caused by pressure loss in the evaporation chamber due to the direct connection of the drainage hole with the outside world is solved.

[0160] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the utility model, and these improvements and variations should also be regarded as the protection scope of the utility model.

Claims

1. A drainage device, characterized in that: include: A shell (1), the shell (1) having an evaporation chamber connection port (2) and a drainage hole (3), the evaporation chamber connection port (2) being in communication with the evaporation chamber of the air conditioner so as to receive condensed water generated in the evaporator, and the drainage hole (3) being capable of discharging the condensed water inside the shell (1); A first water storage tank (4) and a first moving part (5) are provided inside the shell (1); the evaporation chamber connection port (2) can be connected to the drainage hole (3) through the first water storage tank (4); the first moving part (5) can rotate in the first water storage tank (4); when the liquid level in the first water storage tank (4) rises to a first preset height, the first moving part (5) can move to automatically open the first water storage tank (4); when the liquid level in the first water storage tank (4) drops to a second preset height, the first moving part (5) can move to automatically close the first water storage tank (4); the second preset height is less than or equal to the first preset height.

2. The drainage device according to claim 1, characterized in that: A second water storage tank (6) is also provided inside the shell (1), the second water storage tank (6) is connected to the drainage hole (3), and the first water storage tank (4) is connected to the evaporation chamber connection port (2); when the liquid level in the first water storage tank (4) rises to a first preset height, the first moving part (5) can move to a position where its lower end forms a gap with the inner bottom of the first water storage tank (4), so that the first water storage tank (4) and the second water storage tank (6) are connected through the gap, and water is discharged from the first water storage tank (4) to the second water storage tank (6); when the liquid level in the first water storage tank (4) drops to a second preset height, the first moving part (5) can move to a position where its lower end abuts against the inner bottom of the first water storage tank (4), so that the connection between the first water storage tank (4) and the second water storage tank (6) is automatically closed.

3. The drainage device according to claim 2, characterized in that: The inner bottom height of the second water storage tank (6) is lower than the inner bottom height of the first water storage tank (4); The second water storage tank (6) is also provided with a floating structure (7), which is capable of floating on the liquid surface of the second water storage tank (6) and moving up and down with the liquid level in the second water storage tank (6). The floating structure (7) floats upward to open the drainage hole (3). The flow area of ​​the drainage hole (3) is set so that the flow rate through it is smaller than the flow rate from the first water storage tank (4) to the second water storage tank (6). When the liquid level in the second water storage tank (6) rises to a third preset height, the first moving member (5) moves until its lower end abuts against the inner bottom of the first water storage tank (4) to close the connection between the first water storage tank (4) and the second water storage tank (6).

4. The drainage device according to any one of claims 1 to 3, characterized in that: A rotating body (13) and a second moving member (14) are also provided inside the housing (1); one end of the first moving member (5) is connected to the rotating body (13) and the other end thereof extends toward a first direction; one end of the second moving member (14) is connected to the rotating body (13) and the other end thereof extends toward a second direction; the first direction and the second direction are different directions; the first moving member (5) and the second moving member (14) can both rotate integrally with the rotating body (13); When the liquid level in the first water storage tank (4) rises to a first preset height, the first torque T1 applied to the first moving member (5) is smaller than the second torque T2 applied to the second moving member (14), so that the first moving member (5) rotates to form a gap with the inner bottom of the first water storage tank (4), thereby opening the first water storage tank (4); When the liquid level in the first water storage tank (4) drops to a second preset height, the first torque T1 applied to the first moving member (5) is greater than the second torque T2 applied to the second moving member (14), so that the first moving member (5) rotates to contact the inner bottom of the first water storage tank (4), thereby closing the first water storage tank (4).

5. The drainage device according to claim 4, characterized in that: Both sides of the rotation direction of the first moving member (5) are subjected to gas pressure to form a first pressure difference in the first rotation direction, the first pressure difference acts on the first moving member (5) to form a first torque T1, and both sides of the rotation direction of the second moving member (14) are subjected to gas pressure to form a second pressure difference in the second rotation direction, the second pressure difference acts on the second moving member (14) to form a second torque T2, the first rotation direction is opposite to the second rotation direction; When the liquid level in the first water storage tank (4) is greater than or equal to a first preset height, the first torque T1 is less than the second torque T2, and the torque difference drives the first moving member (5), the second moving member (14) and the rotating body (13) to rotate together in the second rotation direction, so that the lower end of the first moving member (5) forms a gap with the inner bottom of the first water storage tank (4) to drain water; when the liquid level in the first water storage tank (4) is less than or equal to the second preset height, the first torque T1 is greater than the second torque T2, and the torque difference drives the first moving member (5), the second moving member (14) and the rotating body (13) to rotate together in the first rotation direction, so that the lower end of the first moving member (5) abuts against the inner bottom of the first water storage tank (4) to close the drainage.

6. The drainage device according to claim 5, characterized in that: One side of the first moving part (5) is a first cavity (101) to withstand the gas pressure in the first cavity (101); the other side of the first moving part (5) is a second cavity (102) to withstand the gas pressure in the second cavity (102); the first moving part (5) separates the first cavity (101) and the second cavity (102); One side of the second moving part (14) is also the first cavity (101) to withstand the gas pressure in the first cavity (101); the other side of the second moving part (14) is the third cavity (103) to withstand the gas pressure in the third cavity (103); the second moving part (14) separates the first cavity (101) and the third cavity (103). The first cavity (101) is connected to the evaporation chamber connection port (2), so that the pressure of the first cavity (101) is equal to the suction pressure of the evaporation chamber, which is P1; the second cavity (102) is connected to the outside atmosphere, and the pressure is P0; when a second water storage tank (6) is also included, when the liquid level of the third cavity (103) in the second water storage tank (6) is lower than a third preset height, it is connected to the atmospheric pressure, and the pressure is P0; when the liquid level of the third cavity (103) in the second water storage tank (6) is greater than or equal to the third preset height, it is connected to the evaporation chamber, and the pressure is P1; when the liquid level in the second water storage tank (6) is higher than the third preset height, the liquid level in the first water storage tank (4) is lower than the second preset height; wherein P1<P0.

7. The drainage device according to claim 6, characterized in that: The torque on the first moving part (5) is T1=(P1-P0)*D*L12, where D is the width of the first moving part (5), and L1 is the length of the first moving part (5) floating above the liquid surface; When the liquid level in the second water storage tank (6) is less than a third preset height, the third cavity (103) is connected to the outside atmosphere, and the pressure is P0. At this time, the second torque applied to the second moving part (14) is T2=(P1-P0)*D*L22, where D is the width of the second moving part (14), and L2 is the length of the second moving part (14); When the liquid level in the second water storage tank (6) is greater than or equal to a third preset height, the third chamber (103) is connected to the evaporation chamber, the pressure is P1, and the torque applied to the second moving part (14) is T2=(P1-P1)*D*L22=0, where D is the width of the second moving part (14) and L2 is the length of the second moving part (14).

8. The drainage device according to claim 6, characterized in that: The rotating body (13) is a bearing structure, comprising an inner ring (15), an outer ring (16) and a first rolling body (17); one end of the first moving part (5) is fixedly connected to the outer ring (16); one end of the second moving part (14) is fixedly connected to the outer ring (16); the first moving part (5), the outer ring (16) and the second moving part (14) can rotate integrally; The second moving part (14) includes a sliding rod (18), a sleeve (19), an elastic structure (20) and a second rolling body (21). The sleeve (19) has an accommodating cavity inside. One end of the sleeve (19) is fixed to the outer ring (16) and the other end extends out to form a free end. The elastic structure (20) is arranged in the accommodating cavity of the sleeve (19). One end of the sliding rod (18) extends into the accommodating cavity and is connected to the elastic structure (20). The other end of the sliding rod (18) extends out of the accommodating cavity to connect with the second rolling body (21). The elastic structure (20) provides an elastic thrust to the sliding rod (18).

9. The drainage device according to any one of claims 6 to 8, characterized in that: It also includes a fourth cavity (104) and a movement cavity (105), the lower end of the movement cavity (105) is connected to the second water storage tank (6), and when it also includes a floating structure (7), at least a part of the structure of the floating structure (7) is arranged in the movement cavity (105) and can move up and down along the movement cavity (105); When the liquid level in the second water storage tank (6) is higher than a third preset height, the third cavity (103) is connected to the evaporation cavity through the movement cavity (105) and the fourth cavity (104) in sequence; when the liquid level in the second water storage tank (6) is lower than the third preset height, the third cavity (103) is connected to the outside atmosphere through the movement cavity (105).

10. The drainage device according to claim 9, characterized in that: The housing (1) comprises a first bottom plate (8), a first connecting plate (9), a second bottom plate (10), a second connecting plate (11) and a third connecting plate (12) located at the bottom, the first bottom plate (8) being located at the lower end of the first moving member (5), one end of the first connecting plate (9) being connected to one end of the first bottom plate (8), and the other end of the first connecting plate (9) extending upward, so that the upper bottom of the first connecting plate (9) and the upper bottom of the first bottom plate (8) together form the first water storage tank (4); At least part of the structure of the second bottom plate (10) is located below the first bottom plate (8); one end of the second connecting plate (11) is connected to one end of the second bottom plate (10), and the other end of the second connecting plate (11) extends upward; the second connecting plate (11) is located below the first bottom plate (8); one end of the third connecting plate (12) is connected to one end of the second bottom plate (10), and the other end of the third connecting plate (12) extends upward; the second bottom plate (10), the second connecting plate (11) and the third connecting plate (12) together form the second water storage tank (6); A first vent hole (22) is formed between the upper end of the second connecting plate (11) and the first bottom plate (8), so that the second cavity (102) is connected to the outside atmosphere through the first vent hole (22), and the internal air pressure of the second cavity (102) is the atmospheric pressure P0.

11. The drainage device according to claim 10, characterized in that: The invention also comprises a first partition plate (23), the first partition plate (23) being located between the third cavity (103) and the movement cavity (105) so as to separate the third cavity (103) and the movement cavity (105), the first partition plate (23) being provided with a second vent hole (24), the second vent hole (24) connecting the third cavity (103) and the movement cavity (105); The third connecting plate (12) is also provided with a third vent hole (25) and a fourth vent hole (26); the third vent hole (25) is capable of connecting the movement chamber (105) with the outside atmosphere; the drainage hole (3) is arranged on the third connecting plate (12) at a position close to the second bottom plate (10) or connected to the second bottom plate (10) relative to the third vent hole (25); the fourth vent hole (26) is capable of connecting the movement chamber (105) with the fourth cavity (104).

12. The drainage device according to claim 11, characterized in that: The floating structure (7) is provided with a first connecting channel (31), a second connecting channel (32) and a third connecting channel (33) inside. The first connecting channel (31) extends from the surface of the floating structure (7) facing the first partition plate (23) toward the inside of the floating structure (7). The first connecting channel (31) is connected with the second vent hole (24). One end of the second connecting channel (32) is connected with the first connecting channel (31) and the other end extends to the side of the floating structure (7) facing the third connecting plate (12). One end of the third connecting channel (33) is connected with the first connecting channel (31) and the other end extends to the side of the floating structure (7) facing the third connecting plate (12). The second connecting channel (32) is located above the third connecting channel (33). When the liquid level in the second water storage tank (6) is lower than the third preset height, the second vent hole (24) is connected to the third vent hole (25) through the first connecting channel (31) and the third connecting channel (33) in sequence, so that the third cavity (103) is connected to the atmospheric pressure P0; when the liquid level in the second water storage tank (6) is greater than or equal to the third preset height, the floating structure (7) floats, and the second vent hole (24) is connected to the fourth vent hole (26) through the first connecting channel (31) and the second connecting channel (32) in sequence, so that the third cavity (103) is connected to the pressure P1 of the evaporation chamber.

13. The drainage device according to claim 11, characterized in that: The invention also comprises a second partition plate (27) and a third partition plate (28), wherein the second partition plate (27) is arranged inside the shell (1), one end of the second partition plate (27) is connected to the third connecting plate (12), and the other end extends toward the direction of the evaporation chamber connecting port (2), and the second partition plate (27) is also connected to the first partition plate (23), so that the first partition plate (23), the second partition plate (27) and the third connecting plate (12) enclose the movement chamber (105), and the third partition plate (28) is located below the second partition plate (27), and one end of the third partition plate (28) is connected to the lower end of the first partition plate (23), and the other end extends toward the direction of the evaporation chamber connection port (2), the second partition plate (27), the first partition plate (23), the third partition plate (28) and the second moving part (14) form the third cavity (103), and the third partition plate (28), the first moving part (5) and the first bottom plate (8) form the second cavity (102).

14. The drainage device according to claim 13, characterized in that: The second partition plate (27), the first moving member (5), the second moving member (14) and the first bottom plate (8) enclose the first cavity (101); One end of the third partition plate (28) is connected to the first partition plate (23), the other end of the third partition plate (28) extends toward the evaporation chamber connection port (2), and the rotating body (13) is arranged at the other end of the third partition plate (28); In the projection surface of the vertical plane, the portion of the second partition plate (27) relatively close to the evaporation chamber connection port (2) is an arc segment structure, and the surface of the arc segment structure facing the rotating body (13) is an arc inner surface; when a second rolling body (21) is included, the second rolling body (21) is arranged in close contact with the arc inner surface, and the center of the arc segment structure is eccentric to the center of the rotating body (13).

15. The drainage device according to claim 13, characterized in that: The invention also comprises a fourth connecting plate (29), a top plate (30) and a fifth connecting plate (34), one end of the fourth connecting plate (29) is connected to a side of the third connecting plate (12) which faces away from the movement chamber (105), and the position of the connecting end of the fourth connecting plate (29) and the third connecting plate (12) is located between the third ventilation hole (25) and the fourth ventilation hole (26), the fourth ventilation hole (26) is located above the third ventilation hole (25), and the other end of the fourth connecting plate (29) faces upward. The evaporation chamber connecting port (2) is formed by the third connecting plate (12) and the fourth connecting plate (29). The fourth connecting plate (104) is connected to the fifth connecting plate (34) and the fifth connecting plate (34) is connected to the fifth connecting plate (34). The fourth connecting plate (104) is formed by the second connecting plate (27) and the third connecting plate (12).

16. The drainage device according to claim 15, characterized in that: The top plate (30), the fifth connecting plate (34), the first bottom plate (8), and the second bottom plate (10) are all flat plate structures extending in the horizontal direction; the first connecting plate (9) is an inclined plate structure with an inclined angle to the horizontal direction; the second connecting plate (11), the third connecting plate (12), and the first partition plate (23) are all flat plate structures extending in the vertical direction; the fourth connecting plate (29) includes a first horizontal plate segment extending in the horizontal direction and a first vertical plate segment extending in the vertical direction; the second partition plate (27) includes a second horizontal plate segment and an arc plate segment extending in the horizontal direction; the third partition plate (28) includes a third horizontal plate segment extending in the horizontal direction, a second vertical plate segment extending in the vertical direction, and a fourth horizontal plate segment extending in the horizontal direction, which are sequentially connected; the rotating body (13) is provided at the free end of the fourth horizontal plate segment.

17. An air conditioner, characterized in that: A drainage device comprising the drainage device described in any one of claims 1-16.

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