An integrated heat pump drying module and its control method

Abstract

This invention discloses an integrated heat pump drying module and its control method, comprising a housing and a compressor installed in the housing. The housing has an air duct with an air inlet and an air outlet, allowing air to enter the air duct from the air inlet and exit from the air outlet. An evaporator and a condenser are installed within the air duct of the housing, with the evaporator positioned closer to the air inlet than the condenser. A partition is installed between the evaporator and the condenser, its lower side dividing the air duct left and right, and its upper side forming an air guide between the partition and the upper sidewall of the housing. An air inlet is formed within the housing cavity between the air inlet and the evaporator, and this inlet is divided into an upper and lower half. A damper plate is installed at the air inlet, which is switched by a driver to close either the upper or lower half. This invention forms an integrated structure, improving equipment compactness and drying efficiency.

Description

Technical Field

[0001] This invention relates to heat pump drying equipment, and more specifically, to an integrated heat pump drying module, and also to a control method for the integrated heat pump drying module. Background Technology

[0002] Current washer-dryer combos typically use heat pump systems for drying. These systems consist of a compressor, evaporator, condenser, and throttling elements. The evaporator and condenser heat and condense the clothes in the drying chamber, effectively drying and dehydrating them. However, the compressor, evaporator, and condenser in current washer-dryer combos are often separate components, making assembly inconvenient.

[0003] During the drying process, the requirements for the heat pump system vary at different stages. For example, in the initial stage of drying, the ambient temperature inside the drying chamber is low, the temperature of the clothes is low, and the air temperature will drop again as it circulates in the heat pump system and passes through the evaporator, resulting in a slow temperature rise in the initial stage of drying. Moreover, at this temperature, the amount of moisture carried by the air entering the evaporator is relatively small. Therefore, there is a problem of low drying efficiency in this stage.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated heat pump drying module and its control method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated heat pump drying module includes a housing and a compressor installed in the housing. The housing has an air duct with an air inlet and an air outlet. Air can enter the air duct from the air inlet and exit from the air outlet. An evaporator and a condenser are installed in the air duct of the housing, with the evaporator closer to the air inlet than the condenser. A partition is installed between the evaporator and the condenser, with the lower side of the partition separating the air duct in the housing to the left and right. An air guide is formed between the upper side of the partition and the upper side wall of the housing. An air inlet is formed in the inner cavity of the housing corresponding to the air inlet and the evaporator. The air inlet is divided into an upper half and a lower half. An air valve plate is installed at the air inlet. The air valve plate is driven by a driver to switch between the upper half and the lower half, which can close either the upper half or the lower half.

[0008] The invention is further configured such that a rotating shaft is installed at the middle position of the air inlet, and the air valve plate is installed on the rotating shaft. When the air valve plate is flipped upward, the upper half of the inlet is closed and the lower half is opened; when the air valve plate is flipped downward, the upper half of the inlet is opened and the lower half is closed.

[0009] The present invention is further configured such that the evaporator is divided into two parts, namely an upper evaporator one and a lower evaporator two. A fixed mesh plate one and a movable mesh plate two are installed between the evaporator one and the evaporator two. The mesh plate one has a plurality of through holes one, and the mesh plate two has a plurality of through holes two. The mesh plate two has a first position and a second position. At the first position, the through holes two are opposite to the through holes one, and the mesh plate one and the mesh plate two are connected vertically. At the second position, the through holes two are offset from the through holes one, and the mesh plate one and the mesh plate two are blocked vertically.

[0010] The present invention is further configured such that the second perforated plate is laterally slidably installed in the inner cavity of the housing, the partition is provided with a limiting groove, the first side of the second perforated plate is slidably installed in the limiting groove, and the second side of the second perforated plate extends to the lower side of the rotating shaft.

[0011] The present invention is further configured such that a spring is installed in the limiting groove, and the spring is elastically connected between the first side of the perforated plate and the inner wall of the limiting groove.

[0012] The air valve plate flips upward, and the spring pushes the mesh plate to the first position; the air valve plate flips downward, and the air valve plate presses against the second side of the mesh plate, causing the mesh plate to move to the second position.

[0013] The present invention is further configured such that the condenser is divided into two parts, namely condenser one and condenser two, condenser one and condenser two are arranged side by side, and condenser one is located between evaporator and condenser two;

[0014] A perforated plate is installed between condenser one and condenser two, and the perforated plate has several through holes.

[0015] The present invention is further configured such that a mesh plate four is disposed between the mesh plate three and the condenser two, the vertical width of the mesh plate four is half that of the mesh plate three, and it is located on the upper half of the mesh plate four.

[0016] The present invention is further configured such that the perforated plate three has a plurality of through holes three, and the perforated plate four has a plurality of through holes four, and the through holes four and the through holes three are offset from each other.

[0017] The present invention is further configured such that the perforated plate four has a third position and a fourth position. At the third position, the perforated plate four and the perforated plate three are attached to each other, and the through holes four and three are offset and closed. At the fourth position, the perforated plate four and the perforated plate three are spaced apart, and the through holes four and three are offset and connected.

[0018] The present invention is further configured such that a linkage rod is fixedly connected between the first side of the perforated plate four and the perforated plate two, and the linkage rod passes through the perforated plate three and is laterally slidably connected to the perforated plate three.

[0019] The invention is further configured such that: the damper plate flips upward, and a spring pushes the perforated plate to the third position; the damper plate flips downward, and the damper plate presses against and pushes the perforated plate to the fourth position.

[0020] The present invention is further configured such that a guide rod is installed on the upper side of the perforated plate four, and a guide sleeve is fixed on the perforated plate three, wherein the guide rod and the guide sleeve are slidably connected laterally.

[0021] The present invention is further configured such that a water receiving groove is provided in the inner cavity of the shell corresponding to the lower side of the evaporator, and the water receiving groove is connected to a lower drain hole.

[0022] The present invention also provides a control method for an integrated heat pump drying module, characterized in that, by using the integrated heat pump drying module as described above, heat pump drying and dehydration can be achieved, and the state can be switched according to the working stage.

[0023] In summary, the present invention has the following beneficial effects:

[0024] By integrating the compressor, evaporator, condenser and other components into the housing, a unified structure is formed.

[0025] By using switchable air valves in the air duct, and in conjunction with the positions of baffles and air vents, the flow of air through the evaporator and condenser can be switched and adjusted to meet the working requirements of different drying stages. In the initial stage of drying, the temperature of the drying chamber is relatively low, which reduces the volume of the evaporator entering the air duct and reduces the cooling force on the air, thereby allowing the drying environment temperature to rise rapidly and improving drying efficiency. Attached Figure Description

[0026] Figure 1 This is a perspective view of an integrated heat pump drying module according to Embodiment 1;

[0027] Figure 2 This is a schematic diagram of the internal structure of an integrated heat pump drying module in Embodiment 1;

[0028] Figure 3 This is a cross-sectional view of an integrated heat pump drying module in Embodiment 1;

[0029] Figure 4 This is a schematic diagram of the upward flipping structure of the air valve plate in Example 1;

[0030] Figure 5This is a schematic diagram of the structure of the air valve plate and flow equalization plate assembly in Embodiment 1;

[0031] Figure 6 This is a schematic diagram of the downward flipping structure of the air valve plate in Embodiment 1;

[0032] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0033] Figure 8 This is a schematic diagram of the upward flipping structure of the air valve plate in Example 2;

[0034] Figure 9 This is a schematic diagram of the structure of perforated plate three, perforated plate four, and linkage rod in Example 2;

[0035] Figure 10 This is a schematic diagram of the downward flipping structure of the air valve plate in Example 2.

[0036] Reference numerals: 1. Housing; 101. Lower half-shell; 102. Upper half-shell; 11. Air inlet; 12. Air outlet; 121. Water collection tank; 13. Compressor; 3. Evaporator; 31. Evaporator 1; 32. Condenser; 4. Condenser 1; 42. Condenser 2; 5. Partition plate; 51. Air guide; 52. Limiting groove; 53. Spring 1; 6. Air inlet; 61. Upper half-port; 62. Lower half-port; 7. Air valve plate; 71. Rotating shaft; 8. Flow equalization plate assembly; 81. Mesh plate 1; 811. Through hole 1; 82. Mesh plate 2; 821. First side; 822. Second side; 823. Slide groove; 9. Mesh plate 3; 91. Through hole 3; 92. Mesh plate 4; 93. Through hole 4; 94. Linkage rod; 95. Fixing block; 96. Spring 2; 97. Guide rod; 98. Guide sleeve. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] This embodiment discloses an integrated heat pump drying module, referring to... Figures 1-7 As shown, the device includes a housing 1 and a compressor 2 installed on the housing 1. The compressor 2, along with components such as the evaporator 3 and the condenser 4, are all integrated and installed on the housing 1 to form an integrated structure.

[0040] The housing 1 comprises a lower half-shell 101 and an upper half-shell 102, which together form a complete housing 1. The interior of the housing 1 is hollow and has an air duct. Air inlet 11 and air outlet 12 are respectively opened at both ends of the housing 1. During the circulation process, air can enter the air duct inside the housing 1 from the air inlet 11 and exit from the air outlet 12.

[0041] Reference Figure 2 , Figure 3 As shown, an evaporator 3 and a condenser 4 are installed inside the air duct of the housing 1, with the evaporator 3 positioned closer to the air inlet 11 than the condenser 4. Furthermore, a water collection trough 13 is provided inside the housing 1, corresponding to the lower side of the evaporator 3, and the water collection trough 13 is connected to a lower drain hole.

[0042] As the air flows through the evaporator 3, it is first cooled down, transforming the hot and humid air into relatively cool and dry air. This causes the moisture in the air to condense into droplets, which fall into the water collection tank 13, thus removing the moisture from the drying process. Then, the air passes through the condenser 4, which heats the cool and dry air, creating relatively hot and dry air. This relatively hot and dry air then enters the drying chamber from the air outlet 12, heating and drying the clothes inside. This creates relatively hot and humid air, which then circulates back into the air duct from the air inlet 11, achieving a circulating drying process.

[0043] Reference Figure 3 , Figure 4 , Figure 6 As shown, a partition 5 is installed between the evaporator 3 and the condenser 4. The lower side of the partition 5 separates the air duct inside the shell 1 from the left and right, and the upper side of the partition 5 forms an air guide vent 51 between it and the upper side wall of the shell 1. The partition 5 can partially separate the air duct inside the shell 1, allowing air to flow only from the air guide vent 51 on the upper side of the partition 5.

[0044] An air inlet 6 is formed in the inner cavity of the housing 1 between the air inlet end 11 and the evaporator 3. The air inlet 6 is divided into an upper half 61 and a lower half 62.

[0045] A damper plate 7 is installed at the air inlet 6. The damper plate 7 has an adjustable switching structure. Driven by a driver, it can either close the upper half 61 or the lower half 62, i.e., open the upper half 61 while closing the lower half 62; or close the upper half 61 while opening the lower half 62. By switching and adjusting the damper plate 7, two different air intake states can be formed, adjusting the position of the airflow path when passing through the evaporator 3.

[0046] Specifically, refer to Figures 4-6As shown, a rotating shaft 71 is installed in the middle of the air inlet 6, and the damper plate 7 is fixedly installed on the rotating shaft 71. The end of the rotating shaft 71 extends to the outside of the housing 1 and is connected to the drive end of the rotary driver. The rotary driver has a reciprocating motion of approximately 180°, which enables the damper plate 7 to be tilted up and down for adjustment.

[0047] Reference Figure 4 As shown, the damper plate 7 flips upwards, closing the upper opening 61 and opening the lower opening 62. Air enters from the lower half of the evaporator 3. Since the air guide 51 of the baffle 5 is located on the upper side, the air flows upwards in the evaporator 3, and the evaporator 3 is basically completely within the air flow path, thus the entire evaporator 3 cools the air. Then, the air flows backwards from the air guide 51 on the upper side of the baffle 5, passing through the condenser 4 for heating. Since the air outlet 121 on the right side of the condenser 4 is located near the lower side, the air flows through the condenser 4, forming a flow from left to right and from top to bottom, and can flow through the entire condenser 4 completely, thus heating the air.

[0048] Reference Figure 6 As shown, the damper plate 7 flips downwards, opening the upper half 61 and closing the lower half 62. Air enters from the upper part of the evaporator 3. Since the air guide 51 of the baffle 5 is located on the upper side, the air flows from left to right in the evaporator 3, mainly circulating only on the upper half of the evaporator 3. The upper part of the evaporator 3 mainly cools the air. Then, the air flows backward from the air guide 51 on the upper side of the baffle 5, passes through the condenser 4 for heating, and finally exits from the air outlet 12.

[0049] Reference Figure 6 As shown, with the damper plate 7 flipped downwards, the evaporator 3 is mainly connected to the airflow channel from the upper part, reducing the cooling effect on the air. This mode is particularly suitable for the initial stage of drying, as the temperature of the drying chamber and the clothes inside is also low during this initial stage. At this time, the air temperature in the drying circulation channel is also low, resulting in poor actual condensation and dehydration. In the initial stage of drying, the lower part of the evaporator 3 does not directly cool the circulating air, allowing the air temperature to rise more quickly and effectively improving the initial temperature rise efficiency.

[0050] Then, refer to Figure 7 As shown, when the air valve plate 7 is flipped upward, air flows in from the lower side of the evaporator 3. The evaporator 3 can be completely connected to the drying channel, and the air can be cooled by the complete evaporator 3. The air can be effectively condensed, cooled and dehydrated, thus enabling more efficient subsequent drying and dehydration.

[0051] Furthermore, referring to Figures 4-7 As shown, the evaporator 3 is divided into two parts, namely the upper evaporator 31 and the lower evaporator 32. A certain gap is formed between the evaporator 31 and the evaporator 32, and the perforated plate 81 and the perforated plate 82 are installed in the gap.

[0052] Among them, the perforated plate 81 is fixedly installed on the lower side of the evaporator 31, and the perforated plate 82 is installed on the lower side of the perforated plate 81. Furthermore, the perforated plate 82 is adjustable.

[0053] A plurality of through holes 811 are formed in a first mesh plate 81, and a plurality of through holes 821 are formed in a second mesh plate 82. The upper side of the second mesh plate 82 is close to and fits against the first mesh plate 81, and the positions of the first through holes 811 and the second through holes 821 correspond one-to-one. By adjusting the position of the second mesh plate 82, the relative positions of the first through holes 811 and the second through holes 821 can be adjusted.

[0054] Specifically, the perforated plate 282 has a first position (refer to...) Figure 4 , Figure 5 (as shown) and the second position (refer to) Figure 6 , paint Figure 7 As shown), at the first position, through hole 2 821 is opposite to through hole 1 811, and mesh plate 1 81 and mesh plate 2 82 are connected vertically to form a vertically connected structure, allowing air to flow between evaporator 1 31 and evaporator 2 32; at the second position, through hole 2 821 and through hole 1 811 are staggered, and mesh plate 1 81 and mesh plate 2 82 are blocked vertically, so that air can only flow in the upper part of evaporator 1 31, and evaporator 2 32 will not exchange with the flowing air, thus avoiding excessive cooling of the air.

[0055] Specifically, the second perforated plate 82 is laterally slidably installed inside the cavity of the housing 1, and a limiting groove 52 is formed in the partition 5. The first side 822 of the second perforated plate 82 is slidably installed in the limiting groove 52, which can realize the sliding guidance of the second perforated plate 82; the second side 823 of the second perforated plate 82 extends to the lower side of the rotating shaft 71, and a sliding groove 83 is provided near the second side 823, which can also guide the second perforated plate 82.

[0056] Furthermore, a spring 53 is installed inside the limiting groove 52, and the spring 53 is elastically connected between the first side 822 of the perforated plate 82 and the inner wall of the limiting groove 52. The spring 53 can elastically limit the perforated plate 82.

[0057] The damper plate 7 can be rotated up and down during adjustment. (See reference...) Figure 4 , 5As shown, when the damper plate 7 flips upward, the spring 53 elastically pushes the perforated plate 82, allowing it to be adjusted to the first position. This enables the through holes 811 and 821 to be vertically aligned and interconnected, allowing air to circulate vertically within the evaporator 3. Air flows upward from the bottom of the evaporator 3 and then out from the top, ensuring that air flows almost completely through the entire evaporator 3. The perforated plates 811 and 821 are vertically connected and do not affect the airflow.

[0058] Reference Figure 6 , Figure 7 As shown, the damper plate 7 flips downwards and rotates counterclockwise. The damper plate 7 can press against and push the second side 823 of the perforated plate 82, causing the second side 823 of the perforated plate 82 to move to the left, and the perforated plate 82 moves to the second position. At this time, the through holes 811 and 821 are misaligned, and can be closed by the perforated plate 8 and 81 respectively, thus disconnecting the perforated plate 81 and 821 (i.e., the entire flow equalization plate assembly 8) vertically. The evaporator 32 on the lower half of the evaporator 3 can be separated by the two plates, the perforated plate 81 and 821, which can more effectively prevent air from flowing vertically in the flow equalization plate assembly 8, minimize heat exchange between the air and the evaporator 32, and avoid excessive cooling of the air. This allows for more effective fulfillment of the initial drying stage under these conditions.

[0059] Example 2

[0060] This embodiment discloses an integrated heat pump drying module, which is based on Embodiment 1 and further refers to... Figures 8-10 As shown.

[0061] Reference Figure 8 , Figure 9 As shown, in this embodiment, the condenser 4 is divided into two parts, namely condenser one 41 and condenser two 42. Condenser one 41 and condenser two 42 are arranged side by side, with condenser one 41 located between evaporator 3 and condenser two 42.

[0062] Furthermore, a perforated plate 3 9 is installed between condenser 1 41 and condenser 2 42, and the perforated plate 3 9 has several through holes 3 91. Under normal conditions, the through holes 3 91 of the perforated plate 3 9 will not affect the airflow, but mainly play a role in uniform air distribution.

[0063] Furthermore, a perforated plate 42 is installed between the perforated plate 3 (9) and the condenser 2 (42). The vertical width of the perforated plate 42 is half that of the perforated plate 3 (9), and it is located on the upper half of the perforated plate 42. The perforated plate 3 (9) has several through holes 3 (91), and the perforated plate 4 (92) has several through holes 4 (93), with the through holes 4 (93) and through holes 3 (91) being staggered.

[0064] Perforated plate 492 can be adjusted horizontally and left and right. Perforated plate 492 has a third position (see reference). Figure 8 (as shown) and the fourth position (refer to) Figure 10 (As shown).

[0065] Reference Figure 8 , Figure 9 As shown, at the third position, the perforated plate 4 92 and the perforated plate 3 9 are close together and attached to each other, and the through hole 4 93 and the through hole 3 91 are staggered and closed. The through hole 4 93 can be covered by the non-opening part of the perforated plate 3 9, and the through hole 3 91 can be covered by the non-opening part of the perforated plate 4 92, so that the two layers of perforated plates can form a closed state after being stacked.

[0066] Reference Figure 10 As shown, at the fourth position, the perforated plate 4 92 and the perforated plate 3 9 are spaced apart, forming a certain gap between them. The through hole 4 93 and the through hole 3 91 can be connected through this gap, forming a state of mutual misalignment and conduction.

[0067] In the initial stage of drying, when the perforated plate 92 is adjusted to the fourth position, air enters the area of ​​the condenser 4 from the air guide 51 on the upper side of the partition 5. Since the upper and lower parts of the perforated plate 9 are in a connected state, the air can flow to the right along the condenser 1 41 and condenser 2 42, be heated by the two sets of condensers, and then exit from the air outlet 12. In this working state, the entire condenser 4 can be connected to the air flow channel, which can more quickly and effectively heat the environment in the drying chamber to a temperature suitable for dehydration.

[0068] When the temperature inside the drying chamber reaches the preset value, it effectively meets the drying and dehydration requirements. At this point, the perforated plate 4 92 is adjusted to the third position. At this position, perforated plate 4 92 and perforated plate 3 9 can fit together, and through holes 3 91 and 4 93 can cover and seal each other, effectively sealing the upper half of perforated plate 3 9. This allows air to flow only from the lower half of perforated plate 3 9. During airflow, it passes through the complete condenser 1 41 and then flows from the lower half of perforated plate 3 9 into the lower half of condenser 2 42. The upper half of condenser 2 42 is almost not connected to the airflow path, thus reducing heat exchange between the condenser and the air, reducing the temperature rise of the circulating air, preventing excessively high circulating air temperature, and controlling the temperature during the drying process within an appropriate range. This also prevents excessively high temperatures from affecting the refrigerant circulation of the compressor.

[0069] Furthermore, referring to Figure 9 As shown, a linkage rod 94 is installed between the four perforated plates 92 and the two perforated plates 82. The linkage rod 94 enables the movement of the air valve plate 7 to simultaneously drive the movement of the two perforated plates 82 and the four perforated plates 92, so that the two can be linked together. This allows the positions of the two perforated plates 82 and the four perforated plates 92 to be adjusted and switched to a mutually compatible state, which can meet the working requirements of the initial drying stage and subsequent normal drying.

[0070] Specifically, refer to Figure 9 As shown, a linkage rod 94 is fixedly connected between the first side 822 of the perforated plate 42 and the perforated plate 22, and a suitable accommodating space is formed at the condenser 1 41. The left end of the linkage rod 94 is fixed to the perforated plate 2 82 to achieve synchronous adjustment movement; the right end of the linkage rod 94 passes through the perforated plate 3 9, and can form a mutual lateral sliding connection with the perforated plate 3 9 in the through part, which can guide the sliding movement of the linkage rod 94.

[0071] Furthermore, a guide rod 97 is installed on the upper side of the perforated plate 4 92. The guide rod 97 is parallel to the linkage rod 94. A guide sleeve 98 is fixed on the perforated plate 3 9. The guide rod 97 and the guide sleeve 98 are fitted together to form a transverse sliding connection structure, which supports and guides the upper part of the perforated plate 4 92.

[0072] Furthermore, a second spring 96 can be installed at the right end of the linkage rod 94. The two ends of the spring 96 press against the end of the linkage rod 94 and the fixed block 95 fixed inside the housing 1, respectively, which can push the linkage rod 94 to the left and realize the lateral elastic adjustment of the linkage rod 94 and other components.

[0073] This embodiment also discloses a control method for an integrated heat pump drying module. By using the integrated heat pump drying module as described above, heat pump drying and dehydration can be achieved.

[0074] In the initial stage of drying, the regulating damper plate 7 is flipped downwards, as per [reference]. Figure 10 As shown, at this time, the air valve plate 7 pushes the perforated plate 82 and the linkage rod 94 to move to the right, the perforated plate 81 and the perforated plate 82 overlap and close each other, and the perforated plate 9 and the perforated plate 4 separate and open each other; during the circulation process, the air can flow through the evaporator 31 in the upper part of the evaporator 3, pass through the air guide 51, and then flow through the entire condenser 4 for heating, thus forming a circulation, so that the air can heat up the ambient temperature of the drying chamber more quickly during the circulation process, effectively improving the drying efficiency;

[0075] When the ambient temperature during drying exceeds the preset temperature range, the regulating damper plate 7 flips upwards, as per [reference needed]. Figure 8 As shown, at this time, the effect of the damper plate 7 on the perforated plate 82 and the linkage rod 94 disappears. The spring pushes the perforated plate 82 and the linkage rod 94 to move to the left, and the perforated plate 81 and the perforated plate 82 are connected to each other. The evaporator 31 and the evaporator 32 are connected vertically. The perforated plate 9 and the perforated plate 4 are attached to each other, sealing the upper half of the perforated plate 9. During the circulation process, the air can be input from the lower side of the evaporator 3 and flow through the entire evaporator 3 for cooling and dehydration. Then, it passes through the air guide 51 and flows through the lower half of the condenser 41 and the condenser 42, reducing the heat exchange area between the condenser 4 and the air, avoiding overheating of the air, and achieving effective circulating drying.

[0076] Then, when the ambient temperature is lower than the preset temperature range, the regulating damper plate 7 flips downward to perform the drying operation in this state, thereby realizing the switching of the drying state and enabling the switching of different states according to the drying environment.

[0077] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An integrated heat pump drying module, characterized in that, Includes a housing (1) and a compressor (2) installed in the housing (1). The housing (1) is provided with an air duct and has an air inlet (11) and an air outlet (12). Air can enter the air duct in the housing (1) from the air inlet (11) and be output from the air outlet (12). An evaporator (3) and a condenser (4) are installed in the air duct of the housing (1). The evaporator (3) is closer to the air inlet (11) than the condenser (4). A partition (5) is installed between the evaporator (3) and the condenser (4). The lower side of the partition (5) divides the air duct in the housing (1) into left and right sections. An air guide (51) is formed between the upper side of the partition (5) and the upper side wall of the housing (1). An air inlet (6) is formed between the air inlet (11) and the evaporator (3) in the inner cavity of the housing (1). The air inlet (6) is divided into an upper half (61) and a lower half (62). A damper plate (7) is installed at the air inlet (6). The damper plate (7) is driven to switch by a driver, which can close either the upper half (61) or the lower half (62). The evaporator (3) is divided into two parts, an upper evaporator (31) and a lower evaporator (32). A fixed mesh plate (81) and a movable mesh plate (82) are installed between the evaporator (31) and the evaporator (32). The mesh plate (81) has several through holes (811), and the mesh plate (82) has several through holes (821). The mesh plate (82) has a first position and a second position. At the first position, the through holes (821) are opposite to the through holes (811), and the mesh plate (81) and the mesh plate (82) are connected vertically. At the second position, the through holes (821) and the through holes (811) are misaligned, and the mesh plate (81) and the mesh plate (82) are blocked vertically.

2. The integrated heat pump drying module according to claim 1, characterized in that, A rotating shaft (71) is installed in the middle of the air inlet (6), and the air valve plate (7) is installed on the rotating shaft (71). When the air valve plate (7) is flipped upward, the upper half of the opening (61) is closed and the lower half of the opening (62) is opened; when the air valve plate (7) is flipped downward, the upper half of the opening (61) is opened and the lower half of the opening (62) is closed.

3. The integrated heat pump drying module according to claim 1, characterized in that, The second perforated plate (82) is slidably installed in the inner cavity of the housing (1). The partition (5) has a limiting groove (52). The first side (822) of the second perforated plate (82) is slidably installed in the limiting groove (52). The second side (823) of the second perforated plate (82) extends to the lower side of the rotating shaft (71).

4. The integrated heat pump drying module according to claim 3, characterized in that, A spring (53) is installed in the limiting groove (52), and the spring (53) is elastically connected between the first side (822) of the perforated plate (82) and the inner wall of the limiting groove (52); The air valve plate (7) flips upward, and the spring one (53) elastically pushes the mesh plate two (82) to the first position; the air valve plate (7) flips downward, and the air valve plate (7) presses against the second side (823) of the mesh plate two (82), and the mesh plate two (82) moves to the second position.

5. The integrated heat pump drying module according to claim 4, characterized in that, The condenser (4) is divided into two parts, namely condenser one (41) and condenser two (42), which are arranged side by side. The condenser one (41) is located between the evaporator (3) and the condenser two (42). A mesh plate three (9) is installed between the condenser one (41) and the condenser two (42), and the mesh plate three (9) has several through holes three (91).

6. The integrated heat pump drying module according to claim 5, characterized in that, A fourth mesh plate (92) is provided between the third mesh plate (9) and the second condenser (42). The vertical width of the fourth mesh plate (92) is half that of the third mesh plate (9), and it is located on the upper half of the third mesh plate (9). The perforated plate four (92) has several through holes four (93), and the through holes four (93) are offset from the through holes three (91).

7. The integrated heat pump drying module according to claim 6, characterized in that, The perforated plate four (92) has a third position and a fourth position. At the third position, the perforated plate four (92) and the perforated plate three (9) are attached to each other, and the through hole four (93) and the through hole three (91) are staggered and closed. At the fourth position, the perforated plate four (92) and the perforated plate three (9) are spaced apart, and the through hole four (93) and the through hole three (91) are staggered and connected.

8. The integrated heat pump drying module according to claim 7, characterized in that, A linkage rod (94) is fixedly connected between the first side (822) of the perforated plate four (92) and the first side (822) of the perforated plate two (82). The linkage rod (94) passes through the perforated plate three (9) and is laterally slidably connected to the perforated plate three (9). The air valve plate (7) flips upward, and the spring (53) elastically pushes the mesh plate (92) to the third position; the air valve plate (7) flips downward, and the air valve plate (7) presses against and pushes the mesh plate (92) to the fourth position; A guide rod (97) is installed on the upper side of the four mesh plates (92), and a guide sleeve (98) is fixed on the three mesh plates (9). The guide rod (97) and the guide sleeve (98) are slidably connected laterally.

9. A control method for an integrated heat pump drying module, characterized in that, The integrated heat pump drying module as described in any one of claims 1-8 is used.

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