Separated air duct and preparation method

Abstract

The invention relates to a separated air duct and a preparation method thereof.The air duct comprises an air duct body, two ports of the air duct body are a fixed port and a movable port correspondingly, the fixed port is used for being fixed to a movable cabin section, and the movable port is arranged in the moving direction of the movable cabin section and used for being in butt joint with the fixed cabin section; a lip-shaped sealing ring is arranged at the movable port and comprises a flange part, a neck part and a lip part which are made of rubber and connected into a whole, the flange part is fixed on the air duct body through screws distributed in the circumferential direction, a flange plate is embedded in the flange part, the neck part is tubular, and the lip part is trumpet-shaped; the device has the advantages of being simple in structure, low in cost, high in functionality, good in adaptability and high in reliability, and the method has the advantages of being simple in process and convenient to operate.

Description

Technical Field

[0001] The invention relates to an air duct, in particular to an air duct with one end fixed and the other end separable from a docking compartment section or a pipeline, and a preparation method of the air duct. Background Art

[0002] In the field of air conditioning, the air duct is used as a cold / warm air delivery channel, connected to the cabin through the air duct valve or sealing structure, and provides the required temperature and humidity environment for the instruments inside the cabin. For the use requirements of some special products, some air ducts need to have the function of moving with a cabin (movable cabin) and separating from other cabins (fixed cabins), and can automatically dock with the fixed cabin and achieve sealing after the movable cabin is reset. At present, the air duct connection method used in this field is flange connection, and it is sealed by O-rings, which cannot meet the use requirements of the movable cabin for air duct connection and sealing, mainly manifested in the following aspects: Flange connection is usually fixed with bolts, which cannot adapt to the air duct structure with separation requirements; although O-rings can adapt to separation requirements and achieve sealing functions, O-rings require high matching accuracy of the docking surface, which is not suitable for situations where the distance between the docking surfaces varies greatly. It is often necessary to repair the air duct installation surface, making it difficult for the air duct to be interchangeable, and O-rings are not conducive to matching during movement, and it is easy to affect the product life due to rapid wear. Summary of the invention

[0003] The purpose of the present invention is to provide a separated air duct and a preparation method thereof. The air duct has the advantages of simple structure, low cost, strong functionality, good adaptability and high reliability. The method has the advantages of simple process and convenient operation.

[0004] In order to solve the problems existing in the prior art, the present invention provides a separated air duct, including an air duct body, wherein two ports of the air duct body correspond to a fixed port and a movable port, the fixed port is used to be fixed on the movable compartment, the movable port is oriented along the movement direction of the movable compartment and is used to dock with the fixed compartment, a lip sealing ring is provided at the movable port, the lip sealing ring includes a flange portion, a neck portion and a lip portion which are made of rubber and connected as one body, the flange portion is fixed to the air duct body by screws distributed along the circumferential direction, a flange plate is embedded in the flange portion, the neck portion is tubular, and the lip portion is trumpet-shaped.

[0005] Furthermore, the present invention provides a separated air duct, wherein a maintenance opening is provided on the air duct body, a maintenance door is provided at the maintenance opening, a lateral side of the maintenance door is connected to the air duct body by a hinge, and buckles are provided between the longitudinal sides of the maintenance door and the air duct body respectively.

[0006] Furthermore, the present invention provides a separated air duct, wherein a handle is provided on the maintenance door, and a plurality of latches are provided at intervals on the hinge and on both sides of the maintenance door.

[0007] Furthermore, the present invention provides a separated air duct, wherein the air duct body is provided with a valve for controlling the on-off of the air duct and a temperature sensor for monitoring the air temperature.

[0008] Furthermore, the present invention provides a separated air duct, wherein a cabin penetration interface for threading cables is fixed on the outer wall of the air duct body.

[0009] Furthermore, the present invention provides a separated air duct, wherein a sealing gasket or a sealing strip is respectively provided between the maintenance door and the cabin penetration interface and the air duct body.

[0010] Furthermore, the present invention provides a separated air duct, wherein the air duct body and the maintenance door are both made of thermal insulation sandwich panels, the thermal insulation sandwich panels include an inner skin, an insulation layer and an outer skin arranged in sequence from the inside to the outside, and a reinforcement plate is provided inside and / or at the edge of the insulation layer.

[0011] Furthermore, the present invention provides a separated air duct, wherein the inner skin and the outer skin are made of glass fiber composite material or carbon fiber composite material, the thermal insulation layer is made of polyurethane foam, phenolic foam or PMI foam, and the reinforcement plate is made of metal material.

[0012] Based on the same concept, the present invention also provides a method for preparing the above-mentioned separated air duct, comprising the following steps:

[0013] S1. Design the shape and size of the duct body and maintenance door according to the movement direction of the movable compartment, the ventilation area of ​​the duct and the maintenance operation space;

[0014] S2. According to the shape and size of the air duct body and the maintenance door, the air duct mold and the door mold are made accordingly;

[0015] S3, laying an outer skin on the air duct mold, providing a thermal insulation layer and a reinforcing plate on the outer skin, laying an inner skin on the thermal insulation layer, and then removing the air duct mold to form an air duct body;

[0016] S4, laying an outer skin on the door mold, providing a thermal insulation layer and a reinforcing plate on the outer skin, laying an inner skin on the thermal insulation layer, and then removing the door mold to form a maintenance door;

[0017] S5. Use hinges to install the maintenance door on the air duct body, and use screws or adhesives to install buckles on both sides of the maintenance door and corresponding positions on the air duct body;

[0018] S6. Use screws to fix the lip seal ring to the movable port of the air duct body.

[0019] Furthermore, in a method for preparing the above-mentioned separated air duct of the present invention, in step S3, laying an outer skin on the air duct mold refers to laying resin prepreg or dry cloth on the air duct mold and then pouring resin, and curing and molding through an autoclave or oven to form an outer skin, and providing an insulation layer on the outer skin refers to pasting or spraying insulation foam on the outer skin, and shaping the insulation foam according to the shape of the air duct to form an insulation layer, the insulation foam refers to polyurethane foam, phenolic foam or PMI foam, and laying an inner skin on the insulation layer refers to laying resin prepreg or dry cloth on the insulation layer and then pouring resin, and curing and molding through an autoclave or oven to form an inner skin.

[0020] Compared with the prior art, the present invention has the following advantages in a separate air duct and preparation method: the present invention sets the air duct body, and the two ports of the air duct body are correspondingly used as a fixed port and a movable port, wherein the fixed port is used to be fixed on the movable compartment, the movable port is set along the movement direction of the movable compartment and is used to dock the fixed compartment, and a lip seal is provided at the movable port, so that the lip seal is set by a flange part, a neck and a lip part made of rubber and connected as one, the flange part is fixed to the air duct body by screws distributed along the circumference, and a flange plate is embedded in the flange part, wherein the neck is a tubular structure and the lip part is a trumpet-shaped structure. Thus, a separate air duct with simple structure, low cost, strong functionality, good adaptability and high reliability is formed. In practical applications, the air duct body is fixed on the movable compartment, wherein the fixed port is connected to the inner cavity of the movable compartment, and the movable port is connected to the fixed compartment and sealed by a lip seal. When the movable compartment moves as required, the air duct body moves with the movable compartment and moves away from the fixed compartment; when the movable compartment is reset, the movable port automatically docks with the connection port of the fixed compartment and seals the docking point through the lip seal. The present invention sets the movable port in the direction of movement of the movable compartment, which can effectively reduce the wear of the lip seal during the movement and reset of the movable compartment, extend the service life of the lip seal, and improve the sealing reliability; the lip seal is provided with a flange portion, a neck and a lip portion connected as one, and the convenience of installation and connection is improved by using the flange portion and the flange plate therein, and the lip seal has a larger deformation amount by using the cooperation of the neck and the lip, which not only improves the adaptability range of the docking distance between compartments, but also enhances the sealing reliability after docking.

[0021] The following is a detailed description of a separate air duct and a preparation method of the present invention in conjunction with the specific embodiments shown in the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of a separated air duct of the present invention;

[0023] Figure 2A top view of a separated air duct of the present invention;

[0024] Figure 3 It is a left view of a separated air duct of the present invention;

[0025] Figure 4 It is an axonometric diagram of a separated air duct of the present invention;

[0026] Figure 5 for Figure 3 AA view in the figure;

[0027] Figure 6 for Figure 3 B view in the figure;

[0028] Figure 7 It is a partial cross-sectional view of a separated air duct of the present invention;

[0029] Figure 8 is a cross-sectional view of the lip seal ring of the present invention;

[0030] Fig. 9 for Figure 8 A partial enlarged view of the C position in the middle. DETAILED DESCRIPTION

[0031] First of all, it should be explained that the directional words such as up, down, left, right, front and back described in the present invention are only described according to the drawings for the convenience of understanding, and are not intended to limit the technical solution and the scope of protection of the present invention.

[0032] like Figures 1 to 9 The specific implementation of a separated air duct of the present invention is shown, and an air duct body 1 is provided, and two ports of the air duct body 1 are correspondingly used as a fixed port 11 and a movable port 12, wherein the fixed port 11 is used to be fixed on the movable compartment, and the movable port 12 is arranged along the movement direction of the movable compartment and is used to dock the fixed compartment, and a lip seal ring 2 is provided at the movable port 12. The lip seal ring 2 is provided with a flange portion 21, a neck portion 22 and a lip portion 23 made of rubber and connected as one body, and the flange portion 21 is fixed to the air duct body 1 by screws distributed along the circumferential direction, and a flange plate 24 is embedded in the flange portion 21, wherein the neck portion 22 is a tubular structure, and the lip portion 23 is a trumpet-shaped structure.

[0033] The above arrangement constitutes a separate air duct with simple structure, low cost, strong functionality, good adaptability and high reliability. In practical application, the air duct body 1 is fixed on the movable compartment, wherein the fixed port 11 is connected to the inner cavity of the movable compartment, and the movable port 12 is connected to the fixed compartment and sealed by the lip seal ring 2. When the movable compartment moves as required, the air duct body 1 moves with the movable compartment and moves away from the fixed compartment; when the movable compartment is reset, the movable port 12 automatically docks with the connection port of the fixed compartment and seals the docking point by the lip seal ring 2. The present invention sets the movable port 12 in the direction of movement of the movable compartment, which can effectively reduce the wear of the lip seal 2 during the movement and resetting of the movable compartment, extend the service life of the lip seal 2, and improve the sealing reliability; the lip seal 2 is provided with a flange portion 21, a neck portion 22 and a lip portion 23 connected as one body, and the flange portion 21 and the flange plate 24 therein are used to improve the convenience of installation and connection, and the cooperation of the neck 22 and the lip portion 23 is used to make the lip seal 2 have a larger deformation, which not only improves the adaptability range of the docking distance between compartments, but also enhances the sealing reliability after docking. It should be noted that the movable compartment and the fixed compartment in this article refer to a cabin, equipment or pipeline with an enclosed space.

[0034] As an optimization solution, this specific embodiment is provided with a maintenance port on the air duct body 1, and a maintenance door 3 is provided at the maintenance port, wherein one lateral side of the maintenance door 3 is connected to the air duct body 1 through a hinge 4, and buckles 5 are provided between the longitudinal sides of the maintenance door 3 and the air duct body 1. This arrangement improves the convenience of inspecting the inside of the air duct body 1 through the maintenance port and the maintenance door 3, and has the characteristics of simple structure and convenient operation. As an optimization solution, this specific embodiment is also provided with a handle 6 on the maintenance door 3 to facilitate the operation of opening and closing the door, and a valve for controlling the opening and closing of the air duct and a temperature sensor for monitoring the air temperature are provided in the air duct body 1 for easy control. In order to ensure the stability and reliability of the structure and connection, the present invention usually arranges multiple buckles 5 on both sides of the hinge 4 and the maintenance door 3 at intervals. In practical applications, in order to facilitate the connection of components such as valves and temperature sensors inside the air duct body 1, the present invention fixes a cabin penetration interface 7 for threading cables on the outer wall of the air duct body 1; and sealing gaskets or sealing strips are respectively arranged between the maintenance door 3 and the cabin penetration interface 7 and the air duct body 1 to ensure the sealing reliability of the air duct body 1.

[0035] As an optimization scheme, this specific embodiment makes the air duct body 1 and the maintenance door 3 both made of insulation sandwich panels 8 to improve the insulation capacity of the two and reduce heat loss. The insulation sandwich panel 8 specifically includes an inner skin 81, an insulation layer 82 and an outer skin 83 arranged in sequence from the inside to the outside, wherein a reinforcement plate 84 is provided inside or / and at the edge of the insulation layer 82 to facilitate the installation of components such as hinges 4, buckles 5, handles 6, and cabin penetration interfaces 7, and to ensure the structural stability of the connection parts. In practical applications, the present invention usually makes the inner skin 81 and the outer skin 83 made of glass fiber composite materials or carbon fiber composite materials, the insulation layer 82 made of polyurethane foam, phenolic foam or PMI foam, and the reinforcement plate 84 made of metal material, but is not limited to the materials listed above, and can also be made of other materials with equivalent properties.

[0036] Practical application shows that the separated air duct provided by the present invention can produce the following beneficial effects: a) There is a large adaptability range for the distance between the interface of the air duct and the cabin section, which can reduce the assembly accuracy requirements of the air duct and the cabin section, and improve the versatility and interchangeability of the product; b) By reasonably designing the air duct interface and the sealing structure, the wear of the sealing structure during the movement of the air duct can be reduced, thereby extending the service life; c) By reasonably designing the maintenance door structure, it is convenient to inspect and replace the internal equipment of the air duct, thereby improving the convenience of maintenance; d) It integrates functions such as air flow duct switch and temperature and humidity monitoring.

[0037] Based on the same concept, the present invention also provides a method for preparing a separated air duct, comprising the following steps:

[0038] S1. Design the shape and size of the air duct body 1 and the maintenance door 3 according to the movement direction of the movable compartment, the ventilation area of ​​the air duct and the maintenance operation space.

[0039] S2. According to the shapes and sizes of the air duct body 1 and the maintenance door 3, corresponding air duct molds and door molds are manufactured.

[0040] S3, laying an outer skin 83 on the air duct mold, providing a thermal insulation layer 82 and a reinforcing plate 84 on the outer skin 83, laying an inner skin 81 on the thermal insulation layer 82, and then removing the air duct mold to form the air duct body 1.

[0041] S4, laying an outer skin 83 on the door mold, providing a heat-insulating layer 82 and a reinforcing plate 84 on the outer skin 83, laying an inner skin 81 on the heat-insulating layer 82, and then removing the door mold to form a maintenance door 3.

[0042] S5. Use hinges 4 to install the maintenance door 3 on the air duct body 1, and use screws or adhesives to install buckles 5 on both sides of the maintenance door 3 and corresponding positions on the air duct body 1.

[0043] S6. Fix the lip seal ring 2 at the movable port 12 of the air duct body 1 with screws.

[0044] In step S3, laying the outer skin 83 on the air duct mold refers to laying resin prepreg or dry cloth on the air duct mold and then pouring resin, and curing and molding through an autoclave or an oven to form the outer skin 83, and arranging the thermal insulation layer 82 on the outer skin 83 refers to pasting or spraying thermal insulation foam on the outer skin 83, and shaping the thermal insulation foam according to the shape of the air duct to form the thermal insulation layer 82, the thermal insulation foam refers to polyurethane foam, phenolic foam or PMI foam, and laying the inner skin 81 on the thermal insulation layer 82 refers to laying resin prepreg or dry cloth on the thermal insulation layer 82 and then pouring resin, and curing and molding through an autoclave or an oven to form the inner skin 81. Similarly, in step S4, laying the outer skin 83 on the door mold refers to laying resin prepreg or dry cloth on the door mold and then pouring resin, and curing and molding through an autoclave or an oven to form the outer skin 83, and providing a thermal insulation layer 82 on the outer skin 83 refers to pasting or spraying thermal insulation foam on the outer skin 83, and shaping the thermal insulation foam according to the shape of the maintenance door to form the thermal insulation layer 82, the thermal insulation foam refers to polyurethane foam, phenolic foam or PMI foam, and laying the inner skin 81 on the thermal insulation layer 82 refers to laying resin prepreg or dry cloth on the thermal insulation layer 82 and then pouring resin, and curing and molding through an autoclave or an oven to form the inner skin 81.

[0045] The preparation method of the separated air duct provided by the present invention has the characteristics of simple process and convenient operation. It should be noted that, in practical applications, the present invention generally adopts a female mold forming method to make the air duct body 1, and adopts a flat mold to make the maintenance door 3. In order to ensure the sealing reliability of the air duct body 1, the present invention also sets a sealing structure between the maintenance door 3 and the air duct body 1.

[0046] The above embodiments are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the design concept of the present invention, various modifications made by those skilled in the art based on the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A separate air duct, characterized in that: The invention comprises an air duct body (1), wherein two ports of the air duct body (1) correspond to a fixed port (11) and a movable port (12), wherein the fixed port (11) is used to be fixed on the movable compartment, and the movable port (12) is arranged along the movement direction of the movable compartment and is used to dock with the fixed compartment. A lip seal ring (2) is provided at the movable port (12), wherein the lip seal ring (2) comprises a flange portion (21), a neck portion (22) and a lip portion (23) which are made of rubber and connected as one body, wherein the flange portion (21) is fixed on the air duct body (1) by screws distributed along the circumferential direction, and a flange plate (24) is embedded in the flange portion (21), the neck portion (22) is tubular, and the lip portion (23) is trumpet-shaped.

2. The separated air duct according to claim 1, characterized in that: The air duct body (1) is provided with a maintenance opening, and a maintenance door (3) is provided at the maintenance opening. A lateral side of the maintenance door (3) is connected to the air duct body (1) via a hinge (4), and buckles (5) are respectively provided between the longitudinal sides of the maintenance door (3) and the air duct body (1).

3. The separated air duct according to claim 2, characterized in that: The maintenance door (3) is provided with a handle (6), and the hinge (4) and the buckles (5) on both sides of the maintenance door (3) are provided with a plurality of buckles at intervals.

4. The separated air duct according to claim 3, characterized in that: The air duct body (1) is provided with a valve for controlling the on / off of the air duct and a temperature sensor for monitoring the air temperature.

5. The separated air duct according to claim 4, characterized in that: A cabin penetration interface (7) for passing cables is fixed on the outer wall of the air duct body (1).

6. The separated air duct according to claim 5, characterized in that: A sealing pad or a sealing strip is respectively provided between the maintenance door (3) and the cabin penetration interface (7) and the air duct body (1).

7. The separated air duct according to claim 6, characterized in that: The air duct body (1) and the maintenance door (3) are both made of a heat-insulating sandwich panel (8), the heat-insulating sandwich panel (8) comprising an inner skin (81), a heat-insulating layer (82) and an outer skin (83) arranged in sequence from the inside to the outside, and a reinforcing plate (84) is provided inside or / and at the edge of the heat-insulating layer (82).

8. The separated air duct according to claim 7, characterized in that: The inner skin (81) and the outer skin (83) are made of glass fiber composite material or carbon fiber composite material, the thermal insulation layer (82) is made of polyurethane foam, phenolic foam or PMI foam, and the reinforcing plate (84) is made of metal material.

9. A method for preparing the separated air duct according to claim 8, characterized in that: The following steps are involved: S1. Design the shape and size of the air duct body (1) and the maintenance door (3) according to the movement direction of the movable compartment, the ventilation area of ​​the air duct and the maintenance operation space; S2, according to the shape and size of the air duct body (1) and the maintenance door (3), correspondingly manufacture the air duct mold and the door mold; S3, laying an outer skin (83) on the air duct mold, providing a thermal insulation layer (82) and a reinforcing plate (84) on the outer skin (83), laying an inner skin (81) on the thermal insulation layer (82), and then removing the air duct mold to form an air duct body (1); S4, laying an outer skin (83) on the door mold, providing a thermal insulation layer (82) and a reinforcing plate (84) on the outer skin (83), laying an inner skin (81) on the thermal insulation layer (82), and then removing the door mold to form a maintenance door (3); S5. Use hinges (4) to install the maintenance door (3) on the air duct body (1), and use screws or adhesives to install buckles (5) at corresponding positions on both sides of the maintenance door (3) and on the air duct body (1); S6. Use screws to fix the lip seal ring (2) to the movable port (12) of the air duct body (1).

10. The method for preparing the separated air duct according to claim 9, characterized in that: In step S3, laying the outer skin (83) on the air duct mold refers to laying resin prepreg or dry cloth on the air duct mold and then pouring resin, and curing and molding through an autoclave or an oven to form the outer skin (83); arranging the thermal insulation layer (82) on the outer skin (83) refers to pasting or spraying thermal insulation foam on the outer skin (83), and shaping the thermal insulation foam according to the shape of the air duct to form the thermal insulation layer (82), the thermal insulation foam refers to polyurethane foam, phenolic foam or PMI foam; laying the inner skin (81) on the thermal insulation layer (82) refers to laying resin prepreg or dry cloth on the thermal insulation layer (82) and then pouring resin, and curing and molding through an autoclave or an oven to form the inner skin (81).

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