Air conditioning unit pipeline via sealing device and air conditioning unit

Abstract

The utility model relates to an air conditioning unit pipeline via hole sealing device and air conditioning unit, install in the wire hole department of baffle, including the sleeve made of elastic material, pipeline passes through the sleeve, the sleeve passes through the wire hole and is connected with baffle sealing fixedly through a plurality of bolts, the sleeve is fixed and tightens the spare, and tightens the sleeve's outer periphery and realizes the sealing between sleeve and pipeline. The utility model realizes sealing connection through bolt with baffle with the sleeve made of elastic material, and tightens the sleeve's outer periphery through the tightener, realizes the sealing between sleeve and internal pipeline, like this can guarantee the sealing effect of wire hole department, can also guarantee the sealing effect between sleeve and pipeline, improves the sealing performance of wire hole department on baffle greatly, can ensure the sealing performance of air conditioning unit, and the sealing device structure is simple, and dismouting is convenient and fast, is favorable for improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning unit pipeline installation technology, and in particular to an air conditioning unit pipeline through-hole sealing device and an air conditioning unit. Background Technology

[0002] Rail vehicles are generally equipped with integrated unit-type air conditioning units. The air conditioning unit is divided into an indoor cavity and an outdoor cavity by a middle partition. Components such as evaporators and blowers are installed in the indoor cavity, while compressors, condensers, and condenser fans are installed in the outdoor cavity. Refrigerant pipes and control wiring harnesses need to pass between the indoor and outdoor cavities.

[0003] To ensure passenger comfort, train sets, high-speed trains, and other rail vehicles must be designed with airtightness when they meet or enter and exit tunnels. This is to prevent excessive changes in external pressure from affecting the pressure inside the carriage and reducing passenger comfort.

[0004] Given the sealing requirements of the air conditioning unit, it is necessary to design a sealing system at the wiring locations in the indoor and outdoor cavities of the air conditioning unit to ensure the required sealing when the refrigerant pipes and wiring harnesses pass through the intermediate partition, thereby ensuring the airtightness and waterproof performance of the air conditioning unit. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide an air conditioning unit pipeline through-hole sealing device that is simple in structure, easy to disassemble and assemble, and can ensure the sealing effect at the wiring point, and at the same time, to provide an air conditioning unit equipped with the pipeline through-hole sealing device.

[0006] To solve the aforementioned technical problem, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An air conditioning unit pipeline through-hole sealing device is installed at the through-hole on a partition plate, including a sleeve made of elastic material, through which the pipeline passes. The sleeve passes through the through-hole and is sealed and fixed to the partition plate by a plurality of bolts. A fastening member is installed on the sleeve and is fastened to the outer periphery of the sleeve to achieve a seal between the sleeve and the pipeline.

[0008] Furthermore, the sleeve is T-shaped in general, consisting of a cylindrical part and a connecting part perpendicular to the cylindrical part. The cylindrical part passes through the wire hole, and there is an interference fit between the cylindrical part and the wire hole. The connecting part is tightly attached to the partition plate, and the connecting part and the partition plate are fixedly connected by multiple bolts. The fastening member is fastened to the outer periphery of the cylindrical part.

[0009] Furthermore, it also includes a metal pressure plate, which is installed on the outside of the sleeve connection and is fixedly connected to the connection and the partition by bolts.

[0010] Furthermore, the fastening component is a hose clamp or cable tie.

[0011] Furthermore, the sleeve is made of rubber material.

[0012] Furthermore, the sleeve is a single-core structure with a through hole extending along the axial direction; or, the sleeve is a multi-core structure, including multiple through holes extending along the axial direction, through which the pipeline passes.

[0013] Furthermore, a first washer and a second washer are installed between the bolt head and the partition plate. The first washer is an elastic washer, and the second washer is a metal washer. The first washer is tightly attached to the partition plate, and the second washer is pressed between the bolt head and the first washer.

[0014] Furthermore, the second washer consists of a ring with a central through hole and an annular rim extending to one side from the edge of the ring, forming a receiving cavity surrounded by the annular rim. During installation, the first washer is partially placed inside the receiving cavity.

[0015] The basic concept of another technical solution adopted in this utility model is:

[0016] An air conditioning unit has an indoor cavity and an outdoor cavity separated by a partition inside the housing. A wire passage hole is provided on the partition, and a wire passage hole sealing device as described above is installed at the wire passage hole.

[0017] In summary, the air conditioning unit pipeline through-hole sealing device and air conditioning unit provided by this utility model utilize a sleeve made of elastic material and a partition plate to achieve a sealed connection through bolts. At the same time, a fastening member is used to tighten the sleeve around its outer circumference to achieve a seal between the sleeve and the internal pipeline. This ensures the sealing effect at the through-hole and the sealing effect between the sleeve and the pipeline, significantly improving the sealing performance at the through-hole on the partition plate. This ensures the sealing performance of the air conditioning unit. Moreover, the sealing device has a simple structure, is easy and quick to assemble and disassemble, and helps to improve installation efficiency.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the attached diagram:

[0021] Figure 1 This is an exploded view of the sealing device structure according to Embodiment 1 of this utility model;

[0022] Figure 2 This is an exploded view of the bolt installation structure of Embodiment 1 of this utility model;

[0023] Figure 3 This is an exploded view of the sealing device structure according to Embodiment 2 of this utility model.

[0024] In the picture:

[0025] Partition 1, wire hole 2, sleeve 3, cylinder part 31, connecting part 32, through hole 33, first mounting hole 34, bolt 4, fastening part 5, hose clamp 51, second mounting hole 6, pressure plate 7, third mounting hole 71, first washer 8, second washer 9.

[0026] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] like Figure 1As shown, this utility model provides a pipe through-hole sealing device for an air conditioning unit, used in an integrated unit air conditioning unit installed on rail vehicles and passenger cars. The air conditioning unit includes a housing (not shown in the figure), within which an indoor cavity and an outdoor cavity are separated by a partition 1. A pipe through-hole 2 is provided on the partition 1, and a pipe through-hole sealing device is installed at the pipe through-hole 2. One or more pipe through-holes 2 can be provided on a partition 1 as needed. Figure 1 As shown, in this embodiment, two wire holes 2 are provided on the partition 1, one for passing through the refrigerant pipe in the air conditioning unit and the other for passing through the control wiring harness.

[0032] This embodiment provides an air conditioning unit pipeline through-hole sealing device, including a sleeve 3. The sleeve 3 is made of an elastic material, which facilitates sealing and ensures a good sealing effect. The refrigerant pipe or wiring harness (not shown in the figure) that needs to pass through the through-hole 2 passes through the sleeve 3. The sleeve 3 passes through the through-hole 3 and is sealed and fixedly connected to the partition plate 1 by multiple bolts 4. A fastening member 5 is then fixed to the sleeve 3. The fastening member 5 is tightened around the outer periphery of the sleeve 3 to achieve a seal between the sleeve 3 and the internal pipeline. More preferably, the sleeve 3 is made of rubber material. The fastening member 5 is preferably a hose clamp 51, but it can also be a cable tie, etc.

[0033] In this embodiment, the sleeve 3 made of elastic material is sealed to the partition 1 by bolts 4. At the same time, the sleeve 3 is tightened to the outer circumference by the fastening member 5 to achieve a seal between the sleeve 3 and the internal pipeline. This can ensure the sealing effect at the wire hole 2 and the sealing effect between the sleeve 3 and the pipeline, which greatly improves the sealing performance at the wire hole 2 on the partition 1. Moreover, the structure is simple, and the disassembly and assembly are convenient and quick, which helps to improve the installation efficiency.

[0034] In this embodiment, it is further preferred that the sleeve 3 has a T-shaped structure, consisting of a cylindrical part 31 and a connecting part 32 perpendicular to the cylindrical part 31. The cylindrical part 31 is a hollow cylinder, and the connecting part 32 is an annular flat plate structure. The connecting part 32 extends vertically outward from one end of the cylindrical part 31.

[0035] In this embodiment, the sleeve 3 is a single-core structure with a through hole 33 extending axially, through which the pipe or wire harness passes. To ensure a sealing effect, it is preferable that the inner diameter of the through hole 33 is interference-fitted with the outer diameter of the pipe or wire harness, and different diameter pipes are fitted with sleeves 3 of different inner diameters. This facilitates the passage of the pipe or wire harness through the sleeve 3 while ensuring a sealing effect after tightening.

[0036] In this embodiment, the cylindrical body 31 and the wire passage hole 2 are interference-fitted. When the cylindrical body 31 passes through the wire passage hole 2, a primary seal is formed, and the fastening member 5 is secured to the outer periphery of the cylindrical body 31. During installation, the connecting part 32 is tightly fitted to the partition plate 1. Multiple first mounting holes 34 are provided on the connecting part 32, and multiple second mounting holes 6 are also provided on the partition plate 1 around the wire passage hole 2. The first mounting holes 34 of the connecting part 32 and the multiple second mounting holes 6 on the partition plate 1 are fixedly connected together by bolts 4. Because the connecting part 32 is made of elastic rubber, after connection, the connecting part 32 and the side of the partition plate 1 form a tight fit, thus forming a secondary seal at the wire passage hole 2. This two-stage sealing structure ensures a good seal between the sleeve 3 and the wire passage hole 2.

[0037] In this embodiment, a further preferred embodiment includes a metal pressure plate 7, which is installed on the outside of the connecting portion 32 of the sleeve 3. The pressure plate 7 has multiple third mounting holes 71, which correspond one-to-one with the first mounting hole 34 and the second mounting hole 6. The pressure plate 7, the connecting portion 32, and the partition 1 are fixedly connected together by multiple bolts 4. By using the metal pressure plate 7 to fix the connecting portion 32 of the sleeve 3 at one end, the connection strength between the sleeve 3 and the partition 1 is ensured, while also ensuring uniform force distribution on the connecting portion 32, resulting in a complete seal between the connecting portion 32 and the partition 1 at the connection surface, further improving the sealing effect between the sleeve 3 and the wire hole 2.

[0038] To ensure a proper seal at the connection between bolt 4 and partition 1, such as Figure 2 As shown, in this embodiment, a first washer 8 and a second washer 9 are further preferably installed between the bolt head 41 and the partition 1. The first washer 8 is an elastic washer, preferably a rubber washer, and the second washer 9 is a metal washer. During installation, the first washer 8 is tightly fitted onto the partition 1, and the second washer 9 is pressed between the bolt head 41 and the first washer 8. After the bolt 4 is tightened, the metal second washer 9 evenly presses against the rubber first washer 8, ensuring that the bolt 4 evenly presses against the rubber first washer 8 when tightened, thereby ensuring a sealing effect between the bolt head 41 and the partition 1.

[0039] In this embodiment, it is further preferred that the second washer 9 consists of a ring with a central through hole and an annular rim (not shown in the figure) extending to one side from the edge of the ring, forming a receiving cavity. During installation, the first washer 8 is partially placed inside the receiving cavity. This not only ensures that the first washer 8 is evenly stressed, guaranteeing a sealing effect, but also protects the first washer 8.

[0040] The installation steps for the air conditioning unit pipeline through-hole sealing device provided in this embodiment are as follows:

[0041] 1. Pass the tube or wire harness through the sleeve 3.

[0042] 2. Pass the cylindrical part 31 of the pipeline and sleeve 3 through the wire hole 2 on the partition plate 1.

[0043] 3. Install the second washer 9 and the first washer 8 on the four bolts 4 in sequence. Use the four sets of bolts 4 to pass through the second mounting hole 6 on the partition plate 1, the first mounting hole 34 on the connection part 32, and the third mounting hole 71 on the pressure plate 7 in sequence. Tighten with nuts to fix the pressure plate 7, the sleeve 3 and the partition plate 1 together.

[0044] 4. Install hose clamp 51 at the cylindrical part 31 of sleeve 3 and tighten hose clamp 51 to seal the sleeve 3 with the internal pipeline.

[0045] The air conditioning unit pipeline through-hole sealing device provided in this embodiment utilizes a sleeve 3 made of elastic material to achieve a sealed connection with the partition 1 through bolts 4. At the same time, it is secured to the outer circumference of the sleeve 3 by a fastening member 5 to achieve a seal between the sleeve 3 and the internal pipeline. This ensures the sealing effect at the through-hole 2 and the sealing performance between the sleeve 3 and the pipeline, greatly improving the sealing effect at the through-hole 2 on the partition 1. It also ensures the sealing performance at the locations of copper pipes and wire harnesses inside the air conditioning unit. Moreover, the structure is simple, and the disassembly and assembly are convenient and quick, which helps to improve installation efficiency.

[0046] Example 2:

[0047] The difference from Example 1 is that, as Figure 3 As shown, in this embodiment, the sleeve 3 has a multi-core structure, with multiple through holes 33 extending along the axial direction in the cylindrical part 31. That is, multiple tubes or wire harnesses can pass through a sleeve 3 at the same time. The diameters of the multiple through holes 33 can be the same or different, and different tubes or wire harnesses pass through the corresponding through holes 33.

[0048] This allows multiple pipes or wire harnesses to pass through a single wire hole 2 simultaneously, and allows pipes or wire harnesses of different diameters to pass through at the same time. The sealing effect at the wire hole 2 is ensured by the connection part 32, pressure plate 7, and fastening member 5.

[0049] Example 3:

[0050] In this embodiment, an air conditioning unit is provided, including a housing. An indoor cavity and an outdoor cavity (not shown in the figure) are separated within the housing by a partition 1. Components such as an evaporator and a blower are installed in the indoor cavity, while components such as a compressor, a condenser, and a condenser fan are installed in the outdoor cavity. Refrigerant pipes and control wiring harnesses need to pass through the indoor and outdoor cavities. A wiring hole 2 is provided on the partition 1, and a pipeline through hole sealing device as described in Embodiment 1 or Embodiment 2 is installed at the wiring hole 2. The sealing performance between the indoor and outdoor cavities of the air conditioning unit is ensured by installing a sealing device at the wiring hole 2.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sealing device for a pipe passage hole in an air conditioning unit, installed at the pipe passage hole on a partition plate, characterized in that: It includes a sleeve made of elastic material, through which a pipeline passes. The sleeve passes through the through hole and is sealed and fixed to a partition by multiple bolts. A fastening element is installed on the sleeve and is fastened to the outer periphery of the sleeve to achieve a seal between the sleeve and the pipeline.

2. The air conditioning unit pipeline through-hole sealing device according to claim 1, characterized in that: The sleeve is T-shaped and consists of a cylindrical part and a connecting part perpendicular to the cylindrical part. The cylindrical part passes through the wire hole and is interference-fitted with the wire hole. The connecting part is tightly attached to the partition plate and is fixedly connected to the partition plate by multiple bolts. The fastening member is fastened to the outer circumference of the cylindrical part.

3. The air conditioning unit pipeline through-hole sealing device according to claim 2, characterized in that: It also includes a metal pressure plate, which is installed on the outside of the sleeve connection and is fixedly connected to the connection and the partition by bolts.

4. The air conditioning unit pipeline through-hole sealing device according to claim 1, characterized in that: The fastening device is a hose clamp or cable tie.

5. The air conditioning unit pipeline through-hole sealing device according to claim 1, characterized in that: The sleeve is made of rubber material.

6. The air conditioning unit pipeline through-hole sealing device according to any one of claims 1-5, characterized in that: The sleeve is a single-core structure with a through hole extending along the axial direction; or, the sleeve is a multi-core structure, including multiple through holes extending along the axial direction, through which the pipeline passes.

7. The air conditioning unit pipeline through-hole sealing device according to any one of claims 1-5, characterized in that: A first washer and a second washer are installed between the bolt head and the partition. The first washer is an elastic washer, and the second washer is a metal washer. The first washer is tightly attached to the partition, and the second washer is pressed between the bolt head and the first washer.

8. The air conditioning unit pipeline through-hole sealing device according to claim 7, characterized in that: The second washer consists of a ring with a central through hole and an annular rim extending to one side from the edge of the ring. The annular rim surrounds a receiving cavity, and during installation, the first washer is partially placed inside the receiving cavity.

9. An air conditioning unit, characterized in that: Includes a housing, within which partitions are used to separate... The inner cavity and the outer cavity are provided with wiring holes on the partition, and a pipeline through hole sealing device as described in any one of claims 1-8 is installed at the wiring hole.

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