Sealing structure and air conditioner

Abstract

The utility model discloses a sealing structure and an air conditioner, and relates to the technical field of air conditioners, the sealing structure is used for the air conditioner, and a shell of the air conditioner is provided with a mounting hole for a refrigerant pipe assembly to penetrate through; the sealing structure comprises a flexible sealing piece, the flexible sealing piece is arranged in an annular shape, the inner periphery of the flexible sealing piece is used for allowing the refrigerant pipe assembly to penetrate in a sealed mode, at least part of the outer periphery of the flexible sealing piece is provided with a limiting groove, and the limiting groove is used for allowing the edge of the mounting hole to be embedded in. According to the technical scheme, the sealing structure can be stably fixed on the machine shell, and the sealing effect of the sealing structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and particularly relates to a sealing structure and an air conditioner. Background Art

[0002] Installation holes are often formed in the indoor unit housing and the outdoor unit housing of an air conditioner, and a refrigerant pipe passes through the installation hole to connect the indoor unit and the outdoor unit. However, such a structure often destroys the sealing performance of the indoor unit housing and the outdoor unit housing, resulting in dust, mosquitoes, etc. being easily introduced into the interior of the indoor unit and the outdoor unit through the gap between the installation hole and the refrigerant pipe. Therefore, a sealing structure needs to be provided. However, in the prior art, the adopted sealing structure often cannot be reliably fixed between the installation hole and the refrigerant pipe, and is easily displaced as the refrigerant pipe slides relative to the installation hole, affecting the sealing effect of the sealing structure. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a sealing structure and an air conditioner, aiming to realize the stable fixation of the sealing structure on the housing and ensure the sealing effect of the sealing structure.

[0004] To achieve the above object, the sealing structure proposed by the utility model is used for an air conditioner, and the housing of the air conditioner is provided with an installation hole for a refrigerant pipe assembly to pass through; the sealing structure includes:

[0005] A flexible seal, which is arranged in a ring shape. The inner peripheral edge of the flexible seal is used for the refrigerant pipe assembly to pass through in a sealed manner, and at least part of the outer peripheral edge of the flexible seal is provided with a limiting groove for the edge of the installation hole to be embedded.

[0006] In one embodiment, a fixing structure is provided between the flexible seal and the housing.

[0007] In one embodiment, the fixing structure includes an installation convex part provided on the edge of the installation hole and protruding towards the inside of the housing, and a connection hole provided on the flexible seal. The installation convex part passes through the connection hole, and a mushroom buckle is provided at the end of the installation convex part away from the housing to block the connection hole from disengaging from the installation convex part.

[0008] In one embodiment, the fixing structure includes a fastener. The flexible seal is provided with a connection hole, and the fastener passes through the connection hole and is fixedly connected to the housing, pressing the edge of the connection hole against the housing.

[0009] In one embodiment, the edge of the connection hole has a thickened part, and the thickness of the thickened part is greater than the thickness of the periphery of the thickened part.

[0010] In one embodiment, the housing includes a first mounting plate and a second mounting plate that are adjacent and disposed at an angle. An installation notch is provided on a side of the first mounting plate facing the second mounting plate, and the second mounting plate encloses the installation notch to form the installation hole;

[0011] The limiting groove is used for the edge of the installation notch to be inserted, and a clamping structure is provided between the flexible seal and the inner side of the second mounting plate.

[0012] In one embodiment, a limiting hook is provided on a side of the flexible seal close to the second mounting plate. A clamping member is provided on the inner side of the second mounting plate, and a clamping groove is provided on the clamping member. The limiting hook is inserted into the clamping groove and hooked on the groove wall of the clamping groove.

[0013] In one embodiment, a side of the flexible seal close to the second mounting plate is discontinuously provided, and there are two clamping structures. The two clamping structures are respectively disposed on opposite sides of the discontinuous position of the flexible seal.

[0014] In one embodiment, the flexible seal includes a sealing portion clamped between the refrigerant pipe assembly and the installation hole, and a first mounting portion and a second mounting portion spaced apart from the outer periphery of the sealing portion. The first mounting portion, the sealing portion, and the second mounting portion together enclose to form the limiting groove;

[0015] A sealing rib is annularly provided on the inner periphery of the sealing portion, and the sealing rib abuts against the refrigerant pipe assembly.

[0016] In one embodiment, the sealing ribs are provided on at least opposite sides of the sealing portion along the axial direction of the installation hole; and / or,

[0017] A plurality of breaks are circumferentially spaced on the sealing rib.

[0018] The present utility model further provides an air conditioner, including an outdoor unit of the air conditioner, an indoor unit of the air conditioner, a refrigerant pipe assembly, and the sealing structure as described above. The housing of the outdoor unit of the air conditioner and / or the indoor unit of the air conditioner is provided with the installation hole, and the refrigerant pipe assembly passes through the installation hole and connects the indoor unit of the air conditioner and the outdoor unit of the air conditioner.

[0019] In one embodiment, the refrigerant pipe assembly is made of a flexible material.

[0020] The technical solution of the present utility model is to provide a flexible seal. The flexible seal is annularly arranged, and the inner peripheral edge of the flexible seal is used for the refrigerant pipe assembly to pass through in a sealed manner. When the refrigerant pipe assembly passes through the inner circle of the flexible seal, the flexible seal is clamped between the refrigerant pipe assembly and the mounting hole, so that the inner peripheral edge of the flexible seal abuts against the outer peripheral surface of the refrigerant pipe assembly, thereby ensuring the seal of the periphery of the refrigerant pipe assembly. A limiting groove is provided on the outer peripheral edge of the flexible seal, and the edge of the mounting hole is embedded in the limiting groove. The limiting groove can prevent the flexible seal from detaching from the mounting hole, thereby fixing the flexible seal on the mounting hole. Since the flexible seal is made of a flexible material, and the limiting groove can increase the contact area between the flexible seal and the edge of the mounting hole, further increasing the frictional resistance between the flexible seal and the edge of the mounting hole, reducing the possibility of the flexible seal slipping out of the mounting hole and reducing the possibility of the flexible seal failing to seal. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 Structural schematic diagram of an embodiment of an air conditioner provided by the present utility model;

[0023] Figure 2 is Figure 1 Schematic diagram of an installation structure of the sealing structure on the first mounting plate at an angle;

[0024] Figure 3 is Figure 2 Cross-sectional view along A-A in;

[0025] Figure 4 is Figure 3 Partial enlarged view of A in;

[0026] Figure 5 is Figure 1 Schematic diagram of another installation structure of the sealing structure on the first mounting plate at an angle;

[0027] Figure 6 is Figure 5 Partial enlarged view of B in.

[0028] Explanation of the reference numerals in the drawings:

[0029] 100. Sealing structure; 1. Flexible seal; 11. Limit groove; 12. Connecting hole; 13. Thickening part; 14. Limit hook; 15. Sealing part; 16. First mounting part; 17. Second mounting part; 18. Sealing rib; 181. Fracture; 200. Air conditioner outdoor unit; 21. Housing; 211. Mounting hole; 212. Mounting convex part; 213. Mushroom buckle; 214. First mounting plate; 215. Second mounting plate; 22. Refrigerant pipe assembly.

[0030] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0032] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The present utility model provides a sealing structure 100 for use in equipment such as air conditioners. The air conditioner includes an outdoor unit 200 and an indoor unit. The refrigerant pipe assembly 22 is respectively connected to the indoor unit and the outdoor unit 200 of the air conditioner. The air conditioner can be a split-type air conditioner that is convenient for users to install personally. It uses refrigerant pipes to connect the indoor heat exchanger of the indoor unit and the outdoor heat exchanger of the outdoor unit 200, and refrigerant is injected into the refrigerant circuit before the equipment leaves the factory. In this way, when the user installs the equipment by himself, he only needs to fix the indoor unit and the outdoor unit 200 respectively, without the need to assemble the refrigerant pipes and fill the refrigerant, thereby reducing the installation difficulty and realizing personal installation by the user. However, this design is not limited to this. In other embodiments, the air conditioner of the present utility model can also be an ordinary split-type air conditioner.

[0035] Since the refrigerant pipe assembly 22 is respectively connected to the indoor unit and the outdoor unit 200 of the air conditioner, an installation hole 211 for the refrigerant pipe assembly 22 to pass through is provided on the housing 21 of the air conditioner. Such a structure often damages the sealing performance of the housing 21, resulting in dust, mosquitoes, etc. being easily introduced into the interior of the air conditioner through the gap between the installation hole 211 and the refrigerant pipe. Especially for the outdoor unit 200 of the air conditioner, because it is installed outdoors, the sealing requirements for dust prevention, waterproofing, rat prevention, insect prevention, etc. are higher. If mosquitoes and the like enter the outdoor unit 200 of the air conditioner and affect the normal operation of the outdoor unit 200 of the air conditioner, the user must remove at least part of the housing 21 from the outside to clean it, which is inconvenient. Therefore, a sealing structure 100 needs to be provided. The installation hole 211 can be provided on the housing 21 of the indoor unit of the air conditioner or on the housing 21 of the outdoor unit 200 of the air conditioner.

[0036] The refrigerant pipe assembly 22 includes two refrigerant pipes, and the two refrigerant pipes are respectively connected to the indoor heat exchanger and the outdoor heat exchanger, thereby forming a refrigerant circuit in the air conditioner. Therefore, in order to facilitate the installation of the refrigerant pipe assembly 22, the refrigerant pipe assembly 22 further includes a sleeve sleeved on the two refrigerant pipes, thereby forming an integral tubular structure, which is convenient for the installation of the air conditioner. The air conditioner usually also includes a connection wire and a drain pipe connecting the outdoor unit 200 and the indoor unit of the air conditioner. The drain pipe can guide the condensed water generated by the indoor unit of the air conditioner to the outdoor unit 200 of the air conditioner and then discharge it from the air conditioner. For the convenience of further installation, the connection wire and / or the drain pipe can also be passed through the sleeve. Of course, in other embodiments, the refrigerant pipe assembly 22 can also only include two refrigerant pipes. Among them, the refrigerant pipes are usually configured as flexible refrigerant pipes to facilitate user installation.

[0037] Please refer to Figure 1 , in an embodiment of the present utility model, the sealing structure 100 includes:

[0038] The flexible seal 1 is arranged in a ring shape. The inner peripheral edge of the flexible seal 1 is used for the refrigerant pipe assembly 22 to be hermetically penetrated. At least part of the outer peripheral edge of the flexible seal 1 is provided with a limiting groove 11, and the limiting groove 11 is used for the edge of the mounting hole 211 to be embedded.

[0039] Specifically, in the prior art, the sealing structure 100 usually directly uses an O-ring, and the O-ring is directly clamped between the mounting hole 211 and the refrigerant pipe assembly 22. However, in the actual installation process, it is inevitable to adjust the protruding length of the refrigerant pipe assembly 22. In this way, the O-ring is likely to shift as the refrigerant pipe slides relative to the mounting hole 211, so as to disengage from the mounting hole 211, resulting in the failure of the O-ring. And during actual use, the O-ring may also come out of the mounting hole 211 due to the movement or swing of the refrigerant pipe assembly 22. Therefore, in this solution, the outer peripheral edge of the flexible seal 1 is provided with a limiting groove 11, and the edge of the mounting hole 211 is embedded in the limiting groove 11. The limiting groove 11 can prevent the flexible seal 1 from disengaging from the mounting hole 211, so as to fix the flexible seal 1 on the mounting hole 211. And because the flexible seal 1 is made of a flexible material, and the limiting groove 11 can increase the contact area between the flexible seal 1 and the edge of the mounting hole 211, thereby further increasing the frictional resistance between the flexible seal 1 and the edge of the mounting hole 211, so as to reduce the possibility of the flexible seal 1 coming out of the mounting hole 211 and reduce the possibility of the flexible seal 1 failing to seal. The inner peripheral edge of the flexible seal 1 is used for the refrigerant pipe assembly 22 to be hermetically penetrated. Thus, when the refrigerant pipe assembly 22 is penetrated through the inner ring of the flexible seal 1, the flexible seal 1 is clamped between the refrigerant pipe assembly 22 and the mounting hole 211, so that the inner peripheral edge of the flexible seal 1 abuts against the outer peripheral surface of the refrigerant pipe assembly 22, thereby ensuring the seal around the refrigerant pipe assembly 22.

[0040] Among them, the flexible seal 1 is arranged in a ring shape, that is, the flexible seal 1 is integrally enclosed around the periphery of the mounting hole 211. However, for the convenience of installation, it is not necessarily a complete circular structure. For example, the flexible seal 1 can be partially disconnected; or the flexible seal 1 includes multiple flexible seal segments, and the multiple flexible seal segments jointly enclose the periphery of the mounting hole 211. However, at this time, the gap between the two ends of the flexible seal 1 at the disconnected position is usually small. When the flexible seal 1 is clamped between the refrigerant pipe assembly 22 and the mounting hole 211, under the extrusion effect, the gap between the two ends of the flexible seal 1 at the disconnected position will further shrink or even abut, so as to achieve the sealing effect and ensure the sealing effect of the flexible seal 1. The limiting groove 11 can be arranged around the entire outer periphery of the flexible seal 1, or can be arranged only on a part of the outer periphery of the flexible seal 1. For example, the extended length of the flexible seal 1 accounts for 3 / 4 or more of the outer periphery of the flexible seal 1, or there are multiple limiting grooves 11, and the multiple limiting grooves 11 are jointly arranged at intervals around the outer periphery of the flexible seal 1. And the flexible seal 1 is generally made of flexible materials such as rubber, silica gel, and flexible plastic.

[0041] To further ensure the stable fixation of the flexible seal 1 to the machine housing 21, in the embodiment of the present invention, a fixing structure is provided between the flexible seal 1 and the machine housing 21, so as to further fix the flexible seal 1 to the machine housing 21, thereby reducing the possibility of the flexible seal 1 coming off. And in order to improve the overall appearance integrity of the machine housing 21 and facilitate cleaning, the fixing structure is usually arranged on the side of the machine housing 21 facing its interior. Of course, in other embodiments, the fixing structure can also be arranged on the side of the machine housing 21 facing its exterior.

[0042] Please refer to Figures 2 to 4 , in the embodiment of the present invention, the fixing structure includes a mounting convex portion 212 provided at the edge of the mounting hole 211 and protruding toward the inside of the machine housing 21, and a connecting hole 12 provided on the flexible seal 1. The mounting convex portion 212 passes through the connecting hole 12, and a mushroom buckle 213 is provided at one end of the mounting convex portion 212 away from the machine housing 21. The mushroom buckle 213 blocks the connecting hole 12 from coming out of the mounting convex portion 212. Specifically, the mounting convex portion 212 is used for the connecting hole 12 of the flexible seal 1 to be sleeved, so as to initially position the installation of the flexible seal 1. And a mushroom buckle 213 is provided at one end of the mounting convex portion 212 away from the machine housing 21. The diameter of the mushroom buckle 213 is relatively large, which can block the flexible seal 1 from coming out of the connecting hole 12 of the mounting convex portion 212, thereby ensuring the fixing stability of the flexible seal 1 at the edge of the mounting hole 211.

[0043] Among them, in this embodiment, the mushroom buckle 213 and the mounting convex portion 212 are integrally formed, so as to not only ensure the limiting stability of the mushroom buckle 213 to the flexible seal 1, but also reduce the assembly process of the mushroom buckle 213 and the mounting convex portion 212. At this time, since the flexible seal 1 is made of a flexible material, during the actual installation process, it can directly pass through the mushroom buckle 213 by using the elasticity of the flexible seal 1 itself and be snapped into the mounting convex portion 212. Of course, in other embodiments, the mushroom buckle 213 and the mounting convex portion 212 can also be separately formed. The mounting convex portion 212 can also be integrally formed on the housing 21, so as to not only ensure the mounting stability of the mounting convex portion 212, but also reduce the assembly process of the mounting convex portion 212.

[0044] In another embodiment of the present invention, the fixing structure includes a fastener. The flexible seal 1 is provided with a connection hole 12. The fastener passes through the connection hole 12 and is fixedly connected to the housing 21, and presses the edge of the connection hole 12 against the housing 21. Specifically, the fastener is generally configured as a structure such as a fastening screw. When the fastener passes through the connection hole 12 and is fixedly connected to the housing 21 and presses the edge of the connection hole 12 against the housing 21, its nut can act as the mushroom buckle 213 to prevent the flexible seal 1 from disengaging from the connection hole 12. And when installed in the form of a fastener, it is more convenient during actual installation, thus further facilitating the installation of the flexible seal 1.

[0045] To ensure the structural strength of the connection hole 12 of the flexible seal 1, in the embodiment of the present invention, please refer to Figures 2 to 4 , the edge of the connection hole 12 has a thickened portion 13, and the thickness of the thickened portion 13 is greater than the thickness of the periphery of the thickened portion 13. That is, a thickening treatment is performed on the edge of the connection hole 12. When the fixing structure includes the mounting convex portion 212 and the mushroom buckle 213, since it is necessary to directly pass through the mushroom buckle 213 by using the elasticity of the flexible seal 1 itself during actual installation, the connection hole 12 is prone to tearing due to large deformation. Therefore, the thickened portion 13 is provided to enhance the structural strength of the edge of the connection hole 12; when the fixing structure includes a fastener, since both the housing 21 and the installation position where the flexible connector is installed are configured as thin sheet structures with a small thickness and are not easy to fix, the thickness of the thickened portion 13 is set to be greater than the thickness of the periphery of the thickened portion 13, so as to facilitate the installation of the fastener and ensure that the fastener can press the edge of the connection hole 12 against the housing 21.

[0046] To further reduce the possibility of the flexible seal 1 disengaging from the mounting hole 211, in the embodiment of the present invention, please refer to Figure 1 and Figure 5 , the housing 21 includes a first mounting plate 214 and a second mounting plate 215 that are adjacent and arranged at an angle. The side of the first mounting plate 214 facing the second mounting plate 215 is provided with a mounting notch, and the second mounting plate 215 encloses the mounting notch to form the mounting hole 211;

[0047] The limiting groove 11 is used for the edge of the installation notch to be embedded, and a clamping structure is provided between the flexible seal 1 and the inner side of the second mounting plate 215.

[0048] Specifically, the first mounting plate 214 can be configured as the top plate of the air conditioner, and the corresponding second mounting plate 215 is configured as the side plate of the air conditioner, or the first mounting plate 214 is configured as the side plate of the air conditioner, and the second mounting plate 215 is configured as the top plate or the chassis of the air conditioner, or the first mounting plate 214 and the second mounting plate 215 are configured as two adjacent side plates of the air conditioner, or the first mounting plate 214 is configured as the chassis of the air conditioner, and the second mounting plate 215 is configured as the side plate of the air conditioner. And the mounting hole 211 is configured as an installation notch on the side of the first mounting plate 214 close to the second mounting plate 215, and the second mounting plate 215 encloses the notch of the installation notch. At this time, the limiting groove 11 is provided on a part of the outer periphery of the flexible seal 1 for the edge of the installation notch to be embedded, and the corresponding clamping structure is provided on the side of the flexible seal 1 facing the second mounting plate 215 (that is, the clamping structure is provided at the notch of the installation notch). Since there is no installation relationship between the flexible seal 1 and the casing 21 at this position, the clamping structure is provided here, which helps to enhance the installation stability of the flexible seal 1.

[0049] Therefore, during actual installation, the flexible seal 1 can be first snapped into the installation notch from the notch of the installation notch, and the edge of the installation notch is embedded into the limiting groove 11. After the assembly of the first mounting plate 214 and the second mounting plate 215 is completed, the flexible seal 1 and the second mounting plate 215 are further connected through the clamping structure, so as to facilitate the installation of the flexible seal 1. Of course, the first mounting plate 214 and the second mounting plate 215 can also be assembled first, and then the flexible seal 1 is installed.

[0050] Further, please refer to Figures 1 to 6 , a limiting hook 14 is provided on the side of the flexible seal 1 close to the second mounting plate 215, a clamping member is provided on the inner side of the second mounting plate 215, and a clamping groove is provided on the clamping member. The limiting hook 14 is inserted into the clamping groove and hooked on the groove wall of the clamping groove. Specifically, the limiting hook 14 is provided on the side of the flexible seal 1 close to the second mounting plate 215, and the limiting hook 14 extends towards the inside of the casing 21. Correspondingly, a clamping member is provided on the inner side of the second mounting plate 215, and a clamping groove is provided on the clamping member. The limiting hook 14 is inserted into the clamping groove and hooked on the groove wall of the clamping groove, so as to facilitate the installation of the flexible seal 1 and the second mounting plate 215.

[0051] In this embodiment, the limit hook 14 is integrally formed on the flexible seal 1, thereby ensuring the installation stability of the limit hook 14 and further ensuring the installation stability of the flexible seal 1. The clamping member can be configured as a frame structure provided on the second mounting plate 215. The limit hook 14 is clamped on one side of the frame structure, and the limit hook 14 is inserted into the clamping groove through the gap between the clamping member and the second mounting plate 215, so that the second mounting plate 215 can limit the installation of the limit hook 14, thereby further preventing the limit hook 14 from detaching from the clamping member.

[0052] For the convenience of installing the flexible seal 1, in the embodiment of the present utility model, please refer to Figures 1 to 6 , one side of the flexible seal 1 close to the second mounting plate 215 is discontinuously arranged, and there are two clamping structures, and the two clamping structures are respectively arranged on opposite sides of the discontinuous position of the flexible seal 1. Specifically, the one side of the flexible seal 1 close to the second mounting plate 215 is discontinuously arranged, which helps to adjust the shape of the flexible seal 1, facilitates the sleeving of the limit groove 11 on the edge of the mounting hole 211, and also facilitates the installation of the flexible seal 1 on the second mounting plate 215 through the clamping structure. And there are two clamping structures, and the two clamping structures are respectively arranged on opposite sides of the discontinuous position of the flexible seal 1, so that the clamping structure can further fix the end of the flexible seal 1 and reduce the possibility of seal failure caused by the swinging of the two opposite ends of the flexible seal 1 at the discontinuous position.

[0053] To further improve the sealing effect of the flexible seal 1, in the embodiment of the present utility model, please refer to Figures 3 to 6 , the flexible seal 1 includes a sealing portion 15 clamped between the refrigerant pipe assembly 22 and the mounting hole 211, and a first mounting portion 16 and a second mounting portion 17 spaced apart from the outer periphery of the sealing portion 15. The first mounting portion 16, the sealing portion 15 and the second mounting portion 17 jointly enclose to form a limit groove 11;

[0054] A sealing rib 18 is annularly arranged on the inner periphery of the sealing portion 15, and the sealing rib 18 abuts against the refrigerant pipe assembly 22.

[0055] Specifically, the sealing portion 15, as the main body portion of the flexible seal 1, is arranged in a cylindrical shape and extends along the axial direction of the refrigerant pipe assembly 22 to seal the gap between the refrigerant pipe assembly 22 and the mounting hole 211. The first mounting portion 16 and the second mounting portion 17 are spaced apart on the outer periphery of the sealing portion 15. The first mounting portion 16, the sealing portion 15, and the second mounting portion 17 together enclose a limiting groove 11. The first mounting portion 16 and the second mounting portion 17 are respectively arranged on the inner side and the outer side of the housing, and the corresponding fixing structure is arranged between the inner side of the first mounting portion 16 and the edge of the mounting hole 211, so that the edge of the mounting hole 211 is embedded in the limiting groove 11. Moreover, the radial widths of the first mounting portion 16 and the second mounting portion 17 are relatively large. Therefore, the limiting groove 11 is configured as a flat groove with a radial depth greater than its axial width along the flexible seal 1, which helps to prevent the edge of the mounting hole 211 from disengaging from the limiting groove 11. Further, a sealing rib 18 is annularly arranged on the inner periphery of the sealing portion 15, and the sealing rib 18 abuts against the refrigerant pipe assembly 22. The sealing rib 18 can increase the abutting area between the flexible seal 1 and the refrigerant pipe assembly 22, thereby further improving the sealing effect of the flexible seal 1.

[0056] Further, at least on the opposite sides of the sealing portion 15 along the axial direction of the mounting hole 211, there are sealing ribs 18. That is to say, there are at least two such sealing ribs, and the two sealing ribs 18 are respectively arranged on the opposite sides of the sealing portion 15 along the axial direction of the mounting hole 211. Of course, in other embodiments, the number of the sealing ribs 18 can also be greater than two. And the multiple sealing ribs 18 are arranged at intervals along the axial direction of the sealing portion 15 with respect to the mounting hole 211.

[0057] In the embodiment of the present utility model, please refer to Figures 3 to 6 , a plurality of break openings 181 are circumferentially arranged at intervals on the sealing rib 18. During the installation process, while the sealing rib 18 can improve the sealing effect of the flexible seal 1, it will also increase the frictional resistance between the flexible refrigerant pipe and the flexible seal 1, which is not conducive to the sliding of the refrigerant pipe assembly 22 relative to the flexible seal 1. Therefore, a plurality of break openings 181 are circumferentially arranged at intervals on the sealing rib 18, so that it can open under the drive of the refrigerant pipe assembly 22 to facilitate the sliding of the refrigerant pipe assembly 22 relative to the flexible seal 1, and reduce the possibility of the sealing rib 18 being torn due to violent pulling of the refrigerant pipe assembly 22.

[0058] The present utility model further provides an air conditioner, which includes an outdoor unit 200 of the air conditioner, an indoor unit of the air conditioner, a refrigerant pipe assembly 22, and a sealing structure 100. For the specific structure of the sealing structure 100, reference may be made to the above embodiments. Since this air conditioner adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one. Among them, the housing 21 of the outdoor unit 200 and / or the indoor unit of the air conditioner is provided with a mounting hole 211, and the refrigerant pipe assembly 22 passes through the mounting hole 211 and connects the indoor unit and the outdoor unit 200 of the air conditioner.

[0059] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A sealing structure for an air conditioner, characterized in that: The housing of the air conditioner is provided with a mounting hole for the refrigerant pipe assembly to pass through; the sealing structure comprises: The flexible seal is arranged in an annular shape, and the inner periphery of the flexible seal is used for the refrigerant pipe assembly to pass through in a sealed manner. At least part of the outer periphery of the flexible seal is provided with a limiting groove, and the limiting groove is used for the edge of the mounting hole to be embedded.

2. The sealing structure according to claim 1, characterized in that: A fixing structure is provided between the flexible sealing member and the housing.

3. The sealing structure according to claim 2, characterized in that: The fixing structure includes a mounting protrusion which is arranged on the edge of the mounting hole and protrudes toward the housing, and a connecting hole arranged on the flexible sealing member. The mounting protrusion passes through the connecting hole, and a mushroom buckle is provided at one end of the mounting protrusion away from the housing, and the mushroom buckle prevents the connecting hole from slipping out of the mounting protrusion.

4. The sealing structure according to claim 2, characterized in that: The fixing structure comprises a fastener, and the flexible sealing member is provided with a connecting hole. The fastener passes through the connecting hole and is connected to the housing and presses the edge of the connecting hole to the housing.

5. The sealing structure according to claim 3 or 4, characterized in that: The edge of the connecting hole has a thickened portion, and the thickness of the thickened portion is greater than the thickness of the periphery of the thickened portion.

6. The sealing structure according to claim 1, characterized in that: The housing comprises a first mounting plate and a second mounting plate which are adjacent and arranged at an angle, a mounting notch is provided on a side of the first mounting plate facing the second mounting plate, and the second mounting plate surrounds the mounting notch to form the mounting hole; The limiting groove is used for the edge of the installation notch to be embedded, and a clamping structure is provided between the flexible sealing member and the inner side of the second installation plate.

7. The sealing structure according to claim 6, characterized in that: A limiting hook is provided on one side of the flexible seal close to the second mounting plate, a clamping piece is provided on the inner side of the second mounting plate, and a clamping groove is provided on the clamping piece, and the limiting hook is inserted into the clamping groove and hung on the groove wall of the clamping groove.

8. The sealing structure according to claim 6, characterized in that: The flexible seal is disconnected at one side close to the second mounting plate, and two clamping structures are provided, and the two clamping structures are respectively arranged at two opposite sides of the disconnected position of the flexible seal.

9. The sealing structure according to claim 1, characterized in that: The flexible sealing member comprises a sealing portion sandwiched between the refrigerant pipe assembly and the mounting hole, and a first mounting portion and a second mounting portion spaced apart at the outer periphery of the sealing portion, wherein the first mounting portion, the sealing portion and the second mounting portion together enclose the limiting groove; The inner periphery of the sealing portion is ring-shaped with a sealing rib, and the sealing rib abuts against the refrigerant pipe assembly.

10. The sealing structure according to claim 9, characterized in that: At least the sealing portion is provided with the sealing ribs on two opposite sides along the axial direction of the mounting hole; and / or, The sealing rib is provided with a plurality of fractures at intervals in the circumferential direction.

11. An air conditioner, characterized in that: It includes an air-conditioning outdoor unit, an air-conditioning indoor unit, a refrigerant pipe assembly and a sealing structure as described in any one of claims 1 to 10, the casing of the air-conditioning outdoor unit and / or the air-conditioning indoor unit is provided with the mounting hole, the refrigerant pipe assembly passes through the mounting hole and connects the air-conditioning indoor unit and the air-conditioning outdoor unit.

12. The air conditioner according to claim 11, characterized in that: The refrigerant pipe assembly is made of flexible material.

Images