Sealing plate assembly and mobile air conditioner

Abstract

The application discloses a sealing plate assembly and a mobile air conditioner, wherein the sealing plate assembly is used for installing air ducts of the mobile air conditioner, the air ducts comprise air inlet ducts and air outlet ducts, and the sealing plate assembly comprises a main sealing piece, the main sealing piece comprises a first plate and a second plate which are oppositely arranged and a first ventilation cavity is formed between the first plate and the second plate, the first plate is provided with a first installation opening and a first air inlet hole which are both communicated with the first ventilation cavity, the second plate is provided with a second installation opening and a avoiding opening which are both communicated with the first ventilation cavity, the air outlet ducts pass through the avoiding opening and are installed on the first installation opening, and the second installation opening is used for installing the air inlet ducts; outdoor air can flow into the air inlet ducts through the first air inlet hole and the first ventilation cavity in sequence. The sealing plate assembly of the technical scheme can improve the stability of installation with the window by increasing the equivalent thickness.

Description

Technical Field

[0001] This invention relates to the field of portable air conditioning technology, and particularly to a sealing plate assembly and a portable air conditioner. Background Technology

[0002] Currently, there are portable air conditioners on the market that are equipped with both air inlet and outlet ducts. The sealing plate of these portable air conditioners has air inlet and exhaust ports corresponding to the air inlet and exhaust ducts, respectively, and can be installed against a window. The air inlet duct connects to the air inlet port to form an air intake channel between the portable air conditioner and the window, allowing outdoor air to enter the room and exchange heat with the condenser of the portable air conditioner. The exhaust duct connects to the exhaust port to form an air outlet channel between the portable air conditioner and the window, guiding the heat-exchanged air outdoors. Because the sealing plate has both air inlet and outlet ducts installed, the installation reliability requirements between the sealing plate and the window are higher. However, existing sealing plate structures cannot meet this requirement and are prone to slipping off the window. Summary of the Invention

[0003] The main objective of this invention is to provide a sealing plate assembly for mounting the duct of a portable air conditioner, the duct including an air inlet duct and an air outlet duct, and the sealing plate assembly is designed to increase its equivalent thickness, thereby improving the stability of the installation with a window.

[0004] To achieve the above objectives, the sealing plate assembly proposed in this invention includes:

[0005] The main sealing element includes a first plate and a second plate arranged opposite to each other, and a first ventilation cavity is formed between the first plate and the second plate. The first plate is provided with a first mounting port and a first air inlet hole, both of which are connected to the first ventilation cavity. The second plate is provided with a second mounting port and a clearance port, both of which are connected to the first ventilation cavity. The air outlet pipe passes through the clearance port and is installed in the first mounting port. The second mounting port is used to install the air inlet pipe.

[0006] Optionally, the distance between the first plate and the second plate ranges from 30 mm to 60 mm.

[0007] Optionally, the sealing plate assembly further includes a secondary seal that is slidably connected to the main seal along a first direction.

[0008] Optionally, the secondary seal is slidably inserted into the first ventilation cavity.

[0009] Optionally, the secondary seal has a second ventilation cavity communicating with the first ventilation cavity, and the secondary seal includes a third plate slidably connected to the first plate, the third plate having a second air inlet communicating with the second ventilation cavity.

[0010] Optionally, the sealing plate assembly further includes a limiting mechanism connecting the main seal and the secondary seal, the limiting mechanism being used to fix the position of the secondary seal relative to the main seal.

[0011] Optionally, the main seal further includes a side plate connecting the first plate and the second plate, and the limiting mechanism includes a limiting protrusion disposed on the side plate and a rack disposed on the secondary seal, wherein the limiting protrusion is engaged with the rack.

[0012] Optionally, the rack includes a plurality of protruding teeth spaced apart along the length direction of the sub-seal. Each protruding tooth includes a first tooth surface and a second tooth surface. The second tooth surface is arranged perpendicular to the sliding direction of the sub-seal. In the direction in which the sub-seal slides into the first ventilation cavity, the first tooth surface extends obliquely toward the limiting protrusion.

[0013] Optionally, the secondary seal is provided with a sliding groove corresponding to the limiting card protrusion, the rack is disposed at the bottom of the sliding groove, and the limiting card protrusion is at least partially received in the sliding groove.

[0014] Optionally, the main seal further includes an elastic arm connecting the limiting protrusion and the side plate, the free end of the elastic arm being connected to an extension section, the extension section being used to push and release the locking state between the limiting protrusion and the rack.

[0015] Optionally, a limiting portion extends from the side of the first plate to abut against the outer side of the window.

[0016] Optionally, the projection of the second mounting port onto the first plate is located outside the first mounting port, and the clearance opening is provided as part of the second mounting port.

[0017] Optionally, the first air inlet is provided in multiple ways, and the multiple first air inlets are distributed at intervals around the first mounting port.

[0018] Optionally, the distance between the first mounting port and any of the first air inlets is greater than or equal to 100 mm.

[0019] The present invention also proposes a portable air conditioner, including the aforementioned sealing plate assembly.

[0020] In the technical solution of the present invention, by using a first plate and a second plate that are arranged opposite to each other to be installed on the window at the same time, the equivalent thickness of the main sealing element can be increased, thereby increasing the effective area of ​​the main sealing element and the window abutting and installing, making it less likely for the main sealing element to slip off the window, and thus improving the installation stability of the main sealing element and the window. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is an exploded view of a component of an embodiment of the sealing plate assembly of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the middle sealing plate assembly;

[0024] Figure 3 for Figure 2 Rear view of the center sealing plate assembly;

[0025] Figure 4 for Figure 2 Top view of the center sealing plate assembly;

[0026] Figure 5 for Figure 4 Cross-sectional view of the middle sealing plate assembly at point AA;

[0027] Figure 6 for Figure 5 A magnified view of the middle sealing plate assembly at point B.

[0028] Explanation of icon numbers:

[0029] label name label name 10 Main seal 133 extension 11 First ventilation chamber 20 Sub-seal 110 First board 21 Second ventilation chamber 111 First mounting port 22 Third Board 112 First air inlet 23 Second air inlet 113 Limiting part 24 Fourth board 120 Second board 25 sliding groove 121 Second mounting port 210 rack 130 Side panel 211 Convex teeth 131 Limiting card protrusion 212 First tooth surface 132 flexible arm 213 Second tooth surface

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] Currently, there are portable air conditioners on the market that are equipped with both air inlet and outlet ducts. The sealing plate of these portable air conditioners has air inlet and exhaust ports corresponding to the air inlet and exhaust ducts, respectively, and can be installed against a window. The air inlet duct connects to the air inlet port to form an air intake channel between the portable air conditioner and the window, allowing outdoor air to enter the room and exchange heat with the condenser of the portable air conditioner. The exhaust duct connects to the exhaust port to form an air outlet channel between the portable air conditioner and the window, directing the heat-exchanged air outdoors. Because the sealing plate has both air inlet and outlet ducts installed, the installation reliability requirements between the sealing plate and the window are higher. However, existing sealing plate structures cannot meet this requirement and are prone to slipping off the window.

[0035] In view of this, the present invention proposes a sealing plate assembly for installing the air duct of a portable air conditioner, the air duct including an air inlet duct and an air outlet duct, as shown in the reference. Figures 1 to 3 In one embodiment of the present invention, the sealing plate assembly includes:

[0036] The main sealing member 10 includes a first plate 110 and a second plate 120 arranged opposite to each other, and a first ventilation cavity 11 is formed between the first plate 110 and the second plate 120. The first plate 110 is provided with a first mounting port 111 and a first air inlet 112 that are both connected to the first ventilation cavity 11. The second plate 120 is provided with a second mounting port 121 and a clearance port that are both connected to the first ventilation cavity 11. The air outlet pipe passes through the clearance port and is installed in the first mounting port 111. The second mounting port 121 is used to install the air inlet pipe.

[0037] In the technical solution of this invention, by simultaneously installing the first plate 110 and the second plate 120, which are arranged opposite to each other, on the window, the effective thickness of the main sealing member 10 can be increased, thereby increasing the effective area of ​​the main sealing member 10 in contact with the window, making it less likely for the main sealing member to slip off the window, and thus improving the stability of the installation of the main sealing member 10 with the window. It should be noted that the thickness direction of the main sealing member 10 refers to the direction perpendicular to the surface of the first plate 110. That is, when the main sealing member 10 is installed on the window, the thickness direction of the main sealing member 10 is parallel or nearly parallel to the normal direction of the window opening. Secondly, outdoor air can flow into the air inlet pipe through the first air inlet hole 112 and the first ventilation cavity 11 in sequence, and flow through the condenser to carry away the heat. The resulting hot air is discharged to the outside through the air outlet pipe.

[0038] Reference Figure 1 In this embodiment, optionally, the distance between the first plate 110 and the second plate 120 ranges from 30 mm to 60 mm. This equivalent thickness range for the main seal 10 is comparable to the thickness of mainstream window frames on the market, facilitating the installation of the main seal 10 on the window. It is understandable that if the distance between the first plate 110 and the second plate 120 is too small, i.e., the equivalent thickness of the main seal 10 is too small, it is detrimental to the stability of the installation of the main seal 10 with the window. Furthermore, a small distance will make the first ventilation cavity 11 too narrow, hindering air intake and potentially causing aerodynamic noise. Conversely, if the distance between the first plate 110 and the second plate 120 is too large, i.e., the equivalent thickness of the main seal 10 exceeds the thickness of mainstream windows, it may be impossible for the first plate 110 and the second plate 120 to be installed on the window simultaneously, thus negatively impacting the stability of the installation of the main seal 10 with the window.

[0039] Reference Figure 1 and 2 In this embodiment, the sealing plate assembly further includes a secondary sealing member 20 slidably connected to the main sealing member 10 along a first direction. In this embodiment, the first direction is set as the length direction of the main sealing member 10. The secondary sealing member 20 can supplement the length of the main sealing member 10, that is, to give the sealing plate assembly an adjustable length function, thereby better adapting to windows of different sizes and meeting different usage needs. Optionally, the secondary sealing member 20 can be detachably installed on the main sealing member 10, allowing users to freely assemble the main sealing member 10 and the secondary sealing member 20, thus enabling the sealing plate assembly to better meet different usage needs. However, this design is not limited to this. In other embodiments, the first direction can also be set as the width direction of the main sealing member, thereby using the secondary sealing member to supplement the width of the main sealing member, that is, to give the sealing plate assembly an adjustable width function.

[0040] Reference Figure 1 and 2In this embodiment, optionally, the secondary seal 20 is slidably inserted into the first ventilation cavity 11. The slidable connection between the secondary seal 20 and the first ventilation cavity 11 not only simplifies the structure of the main seal 10 but also improves the smoothness of sliding between the secondary seal 20 and the main seal 10. However, this design is not limited to this. In other embodiments, the main seal may have a guide rail corresponding to the secondary seal, and the secondary seal may have a groove corresponding to the guide rail, with the guide rail slidably connected to the groove.

[0041] Reference Figure 1 and 2 In this embodiment, the secondary seal 20 further includes a second ventilation cavity 21 communicating with the first ventilation cavity 11. The secondary seal 20 includes a third plate 22 slidably connected to the first plate 110. The third plate 22 is provided with a second air inlet 23 communicating with the second ventilation cavity 21. Utilizing the second air inlet 23 and the second ventilation cavity 21, outdoor air can flow into the air intake pipe sequentially along the second air inlet 23, the second ventilation cavity 21, and the first ventilation cavity 11, thereby increasing the air intake area and improving the air intake efficiency.

[0042] Reference Figure 1 In this embodiment, the secondary seal 20 further includes a fourth plate 24 disposed opposite to the third plate 22, and the fourth plate 24 is slidably connected to the second plate 120. By simultaneously installing the secondary seal 20 on the window using the oppositely disposed third plate 22 and fourth plate 24, the effective thickness of the secondary seal 20 can be increased, thereby increasing the effective contact area between the secondary seal 20 and the window, and thus improving the stability of the sealing assembly and the window installation.

[0043] Reference Figure 1 In this embodiment, the secondary seal 20 may optionally be cylindrical. By setting the secondary seal 20 to a cylindrical structure, not only can the structural strength of the secondary seal 20 itself be improved, but the equivalent thickness of the end of the secondary seal 20 installed on the window can also be increased, thereby improving the stability of the sealing plate assembly and the window installation. In addition, the sliding of the cylindrical secondary seal 20 within the first ventilation cavity 11 will be smoother and more stable. However, this design is not limited to this; in other embodiments, the cross-section of the secondary seal may also be I-shaped or T-shaped.

[0044] Reference Figure 1 In this embodiment, the main seal 10 is optionally cylindrical. By setting the main seal 10 as a cylindrical structure, not only can the structural strength of the main seal 10 itself be improved, thereby improving the stability of the sealing plate assembly and the window installation, but the sliding of the secondary seal 10 within the main seal 10 can also be smoother and more stable. However, this design is not limited to this. In other embodiments, the cross-section of the main seal can also be I-shaped or T-shaped.

[0045] In this embodiment, the sealing plate assembly further includes a limiting mechanism connecting the main sealing member 10 and the secondary sealing member 20. The limiting mechanism is used to fix the position of the secondary sealing member 20 relative to the main sealing member 10. By using the limiting mechanism to fix the secondary sealing member 20 to the main sealing member 10, the problem of the sealing plate assembly slipping off the window due to arbitrary changes in the effective length of the sealing plate assembly can be avoided, thereby improving the stability of the sealing plate assembly and the window installation. However, this design is not limited to this. In other embodiments, the main sealing member can be cylindrical, and the outer wall surface of the secondary sealing member can be clamped to the inner wall surface of the main sealing member. That is, an interference fit is used to prevent arbitrary sliding between the main sealing member and the secondary sealing member.

[0046] Reference Figure 1 , 4 In this embodiment, the main sealing member 10 further includes a side plate 130 connecting the first plate 110 and the second plate 120. The limiting mechanism includes a limiting protrusion 131 disposed on the side plate 130 and a rack 210 disposed on the secondary sealing member 20. The limiting protrusion 131 is engaged with the rack 210. By utilizing the cooperation between the limiting protrusion 131 and the rack 210, the user can easily and quickly adjust the relative positional relationship between the secondary sealing member 20 and the main sealing member 10, i.e., adjust the effective length of the sealing plate assembly, while preventing the secondary sealing member 20 from sliding freely relative to the main sealing member 10. Secondly, by placing the limiting mechanism on the side plate 130, the user will not easily see the limiting mechanism when the sealing plate assembly is installed behind a window, thus making the sealing plate assembly neater and more aesthetically pleasing. However, this design is not limited to this. In other embodiments, the main sealing member may have a plurality of first mounting holes spaced apart along its length, the secondary sealing member may have a second mounting hole corresponding to the first mounting holes, and the limiting mechanism may be a limiting member that can pass through the first mounting hole and connect to the second mounting hole; optionally, the limiting member may be an expansion buckle or a self-tapping screw.

[0047] Reference Figure 6In this embodiment, optionally, the rack 210 includes a plurality of protruding teeth 211 spaced apart along the length direction of the sub-seal 20. Each protruding tooth 211 includes a first tooth surface 212 and a second tooth surface 213, with the second tooth surface 213 being perpendicular to the first direction. In the direction in which the sub-seal 20 slides into the first ventilation cavity 11, the first tooth surface 212 extends obliquely toward the limiting protrusion 131. By utilizing the difference in the inclination angle between the first tooth surface 212 and the second tooth surface 213, the limiting protrusion 131 can slide smoothly along the first tooth surface 212, thereby facilitating the user to smoothly pull the sub-seal 20 out of the first ventilation cavity 11. At the same time, it makes it difficult for the limiting protrusion 131 to slide along the second tooth surface 213, thus making it difficult for the sub-seal 20 to be directly pushed into the first ventilation cavity 11. This allows the effective length of the sealing plate assembly to be maintained in the state after user adjustment, thereby improving the stability of the sealing plate assembly and the window installation. It should be noted that when the user needs to reduce the effective length of the sealing plate assembly, that is, when the secondary seal 20 needs to be pushed into the first ventilation cavity 11, the force applied by the limiting protrusion 131 causes the limiting protrusion 131 to disengage from the rack 210, which allows the secondary seal 20 to freely retract into the first ventilation cavity 11. When the secondary seal 20 slides to the target position, the force on the limiting protrusion 131 is released, and the limiting protrusion 131 is re-engaged on the rack 210, which fixes the position of the secondary seal 20 relative to the main seal 10.

[0048] Reference Figure 6 To facilitate the user's application of force to the limiting protrusion 131 to disengage it from the rack 210, in this embodiment, the main sealing member 10 further includes an elastic arm 132 connecting the limiting protrusion 131 and the side plate 130. The free end of the elastic arm 132 is connected to an extension section 133, which is used to push and release the locking state between the limiting protrusion 131 and the rack 210. By pushing the extension section 133, the user can quickly release the locking state between the limiting protrusion 131 and the rack 210, thereby improving the ease of use of the sealing plate assembly.

[0049] Reference Figure 6 In order to facilitate the user's operation of pushing the extension section 133, in this embodiment, optionally, the extension section 133 is inclined to extend away from the rack 210 in the direction in which the secondary seal 20 slides out of the first ventilation cavity 11.

[0050] Reference Figure 2 , 5In this embodiment, optionally, the secondary seal 20 has a sliding groove 25 corresponding to the limiting protrusion 131, and the rack 210 is disposed at the bottom of the sliding groove 25, with the limiting protrusion 131 at least partially accommodated within the sliding groove 25. By using the sliding groove 25 to accommodate the limiting protrusion 131, the problem of the limiting protrusion 131 protruding excessively on the side plate 130, leading to a localized increase in the width of the main seal 10, can be avoided, thus helping to reduce the gap between the side plate 130 and the window. Secondly, the rack 210 being disposed at the bottom of the sliding groove 25 allows the width of the secondary seal 20 to be substantially flush with the width of the main seal 10, while ensuring sufficient relative displacement between the limiting protrusion 131 and the rack 210, thereby helping to reduce the gap between the secondary seal 20 and the window and improving the sealing performance of the sealing plate assembly.

[0051] Reference Figure 1 and 2 In this embodiment, optionally, at least two secondary seals 20 are provided, with at least two secondary seals 20 respectively connected to both ends of the main seal 10. By providing customers with multiple secondary seals 20, not only can the effective length coverage of the sealing plate assembly be increased, thereby better meeting the needs of windows of different sizes, but users can also freely choose the combination form of the sealing plate assembly, improving the flexibility of the sealing plate assembly. In addition, to further increase the effective length coverage of the sealing plate assembly, thereby better meeting the needs of windows of different sizes, that is, to meet different user needs, the length dimensions of at least two secondary seals 20 can also be set to be different.

[0052] Reference Figure 1 and 3 In this embodiment, the first plate 110 further extends a limiting portion 113 on its side. The limiting portion 113 is used to abut against the outer side of the window frame or window sash, thereby reducing the risk of the sealing plate assembly retracting into the indoor side and improving the stability of the sealing plate assembly and the window installation. It should be noted that the outer side of the window refers to the side of the window facing the outside.

[0053] Reference Figure 1 and 3In this embodiment, optionally, the projection of the second mounting port 121 on the first plate 110 is located outside the first mounting port 111, and the clearance opening is set as part of the second mounting port 121. It should be noted that the outside of the first mounting port 111 refers to the side of the outer contour line of the first mounting port 111 away from its center. That is, the first mounting port 111 is located within the projection area of ​​the second mounting port 121 on the first plate 110. This facilitates the user's installation of the air inlet pipe and the air outlet pipe, and allows the air inlet pipe and the air outlet pipe to be installed more compactly on the main sealing element. This helps to reduce the opening area of ​​the main sealing element, improve the structural strength of the main sealing element, and thus improve the stability of the sealing plate assembly and the window installation. However, this design is not limited to this. In other embodiments, the projection of the second mounting port on the first plate may partially overlap with the first mounting port, and the clearance opening may be set as part of the second mounting port; or the projection of the second mounting port on the first plate may be spaced apart from the first mounting port, and the clearance opening may be spaced apart from the second mounting port.

[0054] Reference Figure 1 In this embodiment, optionally, multiple first air inlets 112 are provided, and the multiple first air inlets 112 are distributed at intervals around the first mounting port 111. By using multiple small-area first air inlets 112, while ensuring a sufficient total air intake area, the first air inlets 112 can block fallen leaves, flying insects, and mice, thereby improving the practicality of the sealing plate assembly.

[0055] Reference Figure 1 and 2 In this embodiment, optionally, multiple second air inlets 23 are provided, and the multiple second air inlets 23 are distributed at intervals along the first direction. In the first direction, the second air inlets 23 are collinear with the first air inlet 112. When the secondary seal 20 slides in the first ventilation cavity 11 along the first direction, the second air inlets 23 can at least partially overlap with the first air inlet 112 at intervals, thereby keeping the total air intake area of ​​the sealing plate assembly at a high level and improving the air intake efficiency of the sealing plate assembly.

[0056] Reference Figure 1 and 3 In this embodiment, optionally, the distance between the first mounting port 111 and any of the first air inlets 112 is greater than or equal to 100 mm. Setting the minimum distance between the first air inlet 112 and the first mounting port 111 to 100 mm or more can prevent hot air exhausted to the outside from the air outlet duct from being drawn back into the room through the first air inlet 112, thus reducing the condenser's heat exchange efficiency and improving the practicality of the sealing plate assembly.

[0057] The present invention also proposes a portable air conditioner, including an air inlet pipe, an air outlet pipe, and the aforementioned sealing plate assembly. The specific structure of the sealing plate assembly is as described in the above embodiments. Since this portable air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The air inlet pipe is installed on the second mounting port of the sealing plate assembly; the air outlet pipe is disposed inside the air inlet pipe, with one end of the air outlet pipe passing through the second mounting port and installed on the first mounting port of the sealing plate assembly.

[0058] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A sealing plate assembly for mounting the air duct of a portable air conditioner, the air duct comprising an air inlet duct and an air outlet duct, characterized in that, The sealing plate assembly includes: The main sealing element is cylindrical in shape and includes a first plate and a second plate arranged opposite to each other. A first ventilation cavity is formed between the first plate and the second plate. The first plate is provided with a first mounting port and a first air inlet, both of which are connected to the first ventilation cavity. The second plate is provided with a second mounting port and a clearance port, both of which are connected to the first ventilation cavity. The air outlet pipe passes through the clearance port and is installed in the first mounting port. The second mounting port is used to install the air inlet pipe. The first air inlet is provided in multiple ways, and the multiple first air inlets are distributed at intervals around the first mounting port; The sealing plate assembly further includes a secondary sealing member slidably inserted into the first ventilation cavity along a first direction. The secondary sealing member is cylindrical and has a second ventilation cavity communicating with the first ventilation cavity. The secondary sealing member includes a third plate and a fourth plate arranged opposite to each other. The third plate is slidably connected to the first plate, and the fourth plate is slidably connected to the second plate. The third plate has a plurality of second air inlets communicating with the second ventilation cavity. The plurality of second air inlets are spaced apart along the first direction. During the sliding of the secondary sealing member along the first direction, the second air inlets and the first air inlets can at least partially overlap or not overlap.

2. The sealing plate assembly as claimed in claim 1, characterized in that, The distance between the first plate and the second plate ranges from 30 mm to 60 mm.

3. The sealing plate assembly as claimed in claim 1, characterized in that, The sealing plate assembly further includes a limiting mechanism connecting the main seal and the secondary seal, the limiting mechanism being used to fix the position of the secondary seal relative to the main seal.

4. The sealing plate assembly as claimed in claim 3, characterized in that, The main sealing element also includes a side plate connecting the first plate and the second plate. The limiting mechanism includes a limiting protrusion on the side plate and a rack on the secondary sealing element. The limiting protrusion is engaged with the rack.

5. The sealing plate assembly as claimed in claim 4, characterized in that, The secondary seal is provided with a sliding groove corresponding to the limiting card protrusion, the rack is disposed at the bottom of the sliding groove, and the limiting card protrusion is at least partially received within the sliding groove; and / or The main seal also includes an elastic arm connecting the limiting protrusion and the side plate. The free end of the elastic arm is connected to an extension section, which is used to push and release the locking state between the limiting protrusion and the rack.

6. The sealing plate assembly according to any one of claims 1 to 5, characterized in that, The first plate extends a limiting portion along its side, the limiting portion being used to abut against the outer surface of the window; and / or The projection of the second mounting port onto the first plate is located outside the first mounting port, and the clearance opening is provided as part of the second mounting port; and / or The distance between the first mounting port and any of the first air inlets is greater than or equal to 100 mm.

7. A portable air conditioner, characterized in that, Includes the sealing plate assembly as described in any one of claims 1 to 6.

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