WO2024031957A1

WO2024031957A1 - Saddle-type window air conditioner

Info

Publication number: WO2024031957A1
Application number: PCT/CN2023/077803
Authority: WO
Inventors: 贺秋霞; 张玲玲
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2022-08-10
Filing date: 2023-02-23
Publication date: 2024-02-15
Also published as: CN115540041A

Abstract

Disclosed in the present invention is a saddle-type window air conditioner, wherein an indoor heat exchanger and a water-receiving tray are provided in an indoor unit; an outdoor heat exchanger, a compressor and a drainage pump are provided in an outdoor unit; a saddle bridge structure is configured to connect the indoor unit with the outdoor unit, and the saddle bridge structure is telescopic to adjust the distance between the indoor unit and the outdoor unit; a sealing component is provided in an inner cavity of the saddle bridge structure to isolate the indoor unit from the outdoor unit; a pipe arrangement gap for the arrangement of a heat exchange pipeline and a drainage pipeline is formed between the sealing component and a side wall of the saddle bridge structure; and the sealing component is provided with a mounting recess, in which a terminal box is provided. The sealing component can isolate the indoor part from the outdoor part, without interfering with the telescopic movement of the saddle bridge structure and without affecting the pipe arrangement and cabling in the inner cavity of the saddle bridge structure.

Description

A saddle-type window air conditioner

Technical field

The present invention relates to the technical field of air conditioners, and in particular to a saddle-type window air conditioner.

Background technique

Most of the window air conditioners currently on the market are square in shape and are integrated air conditioners. They are composed of a chassis, a cover, a panel, an air duct, an indoor fan, an outdoor fan, a motor, a compressor, a condenser, an evaporator, etc. Its installation The height of the rear sunshade is approximately the total height of the window air conditioner, and customers cannot enjoy sufficient sunlight; since the outdoor part of the window air conditioner is integrated with the indoor part, the noise generated by the outdoor part will also be transmitted indoors, resulting in The noise is very loud, affecting the customer's comfort, and cannot be suitable for customers who are sensitive to noise.

In order to solve this problem, the saddle-type air conditioner came into being. It mainly includes an indoor part and an outdoor part. It separates the indoor part from the outdoor part and the indoor part from the outdoor part, which effectively reduces indoor noise. The indoor part and the outdoor part are connected by a saddle bridge structure. The indoor part mainly includes panels, covers, chassis, indoor heat exchangers, cross-flow fans, motors, air ducts, electronic control components and other components. The outdoor part mainly includes cover, chassis, compressor, outdoor heat exchanger, pipeline, motor, motor bracket, axial fan and other components.

As a transitional structure between the indoor part and the outdoor part, the saddle bridge structure also needs to have good sealing and waterproof properties to isolate the indoor from the outdoor. In the prior art, the saddle bridge structure is usually a non-scalable structure, and a PU thermal insulation liner is pasted inside the saddle bridge structure. The saddle bridge structure of this structure cannot adapt to walls of different thicknesses.

technical problem

In view of the problems pointed out in the background art, the present invention provides a saddle-type window air conditioner. The saddle bridge structure can be telescopic to adapt to walls of different thicknesses. A sealing component is provided in the inner cavity of the saddle bridge structure. The sealing component can seal indoor parts. It is isolated from the outdoor part, does not interfere with the telescopic movement of the saddle bridge structure, and does not affect the pipe routing in the inner cavity of the saddle bridge structure.

Technical solutions

In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions to achieve it:

The invention provides a saddle-type window air conditioner, which includes:

An indoor unit, which is equipped with an indoor heat exchanger and a water tray, and the water tray is used to receive the condensed water generated by the indoor heat exchanger;

An outdoor unit is equipped with an outdoor heat exchanger, a compressor, and a drainage pump. A heat exchange pipeline is provided between the indoor heat exchanger, the outdoor heat exchanger, and the compressor. The connection A drainage pipeline is provided between the water pan and the drainage pump;

A saddle bridge structure is used to connect the indoor unit and the outdoor unit. The saddle bridge structure is telescopic to adjust the distance between the indoor unit and the outdoor unit;

a sealing component, which is disposed in the inner cavity of the saddle bridge structure for isolating the indoor unit and the outdoor unit; a sealing component is formed between the sealing component and the side wall of the saddle bridge structure for the There is a pipe clearance for the heat exchange pipeline and the drainage pipeline, and the sealing component is provided with an installation groove;

A terminal box is located in the installation groove.

In some embodiments of the present application, one end of the sealing component is in sealing contact with one side wall of the saddle bridge structure, and the other end of the sealing component is in sealing contact with the other side wall of the saddle bridge structure. Pipe-running gap, the sealing component is provided with a pipe-running groove on one end facing the pipe-running gap, and the opening of the pipe-running groove faces the pipe-running gap;

The top of the sealing component is in sealing contact with the top wall that surrounds the inner cavity of the saddle bridge structure, and the bottom of the sealing component is in sealing contact with the bottom wall that surrounds the inner cavity of the saddle bridge structure.

In some embodiments of the present application, the sealing component is provided with a first installation groove and a second installation groove, a high current terminal box is provided in the first installation groove, and a weak current terminal box is provided in the second installation groove;

The first installation groove and the second installation groove have the same structure. The side walls surrounding the installation groove are provided with a first opening toward the indoor unit side and a second opening toward the outdoor unit side. Two openings are provided. The first openings are away from each other, and the two second openings are away from each other;

The strong current terminal box has the same structure as the weak current terminal box. One side wall of the terminal box is provided with a first wiring opening directly connected to the first opening, and the other side wall is provided with a first wiring opening connected to the first opening. The second opening directly faces the connected second wiring port.

In some embodiments of the present application, the sealing component includes a bottom plate. The bottom plate is a plate-like structure extending along the width direction of the saddle bridge structure. The bottom plate is provided with a first raised portion and a second raised portion. , a third protrusion, a fourth protrusion, and a fifth protrusion. The first protrusion and the second protrusion are spaced apart along the length direction of the bottom plate. The third protrusion The raised portion and the fourth raised portion are spaced apart along the width direction of the bottom plate, and the fifth raised portion is connected between the third raised portion and the fourth raised portion;

The first protruding part, the third protruding part, the fourth protruding part, and the fifth protruding part enclose the first mounting groove, and the first protruding part and the The gap between the fourth protruding parts constitutes the first opening of the first mounting groove, and the gap between the first protruding part and the third protruding part constitutes the third opening of the first mounting groove. Two openings;

The second protruding part, the third protruding part, the fourth protruding part, and the fifth protruding part enclose the second mounting groove, and the second protruding part is connected with the The gap between the fourth protruding parts constitutes the first opening of the second mounting groove, and the gap between the second protruding part and the third protruding part constitutes the third opening of the second mounting groove. Two spoke.

In some embodiments of the present application, an inclined section is provided on a side of the bottom plate, and the inclined section is inclined from the pipe groove to the fourth protruding portion.

In some embodiments of the present application, the bottom of the sealing component is provided with a plurality of concave shapes, and the bottom wall of the inner cavity surrounding the saddle bridge structure is provided with a plurality of convex moldings. The plurality of concave shapes are connected with the plurality of concave shapes. The protrusions are matched in one-to-one correspondence.

In some embodiments of the present application, the heat exchange pipeline includes a return air pipe group, and the return air pipe group includes a first return air pipe section, a second return air pipe section, and a third return air pipe section that are connected in sequence;

The first return air pipe section is connected to the indoor heat exchanger, the third return air pipe section is connected to the compressor, and the second return air pipe section is a U-shaped structure and is located at the end of the saddle bridge structure. In the inner cavity, the second air return pipe section passes through the pipe gap.

In some embodiments of the present application, the outdoor unit extends downward from the saddle bridge structure;

The third return air pipeline section includes a first section of the third return air pipeline, a U-shaped section of the third return air pipeline, and a second section of the third return air pipeline, and the opening of the U-shaped section of the third return air pipeline is Upwards, one section of the third return air pipeline is connected to the second air return pipeline section, and the second section of the third return air pipeline is connected to the suction port of the compressor.

In some embodiments of the present application, the drainage pipeline includes a first drainage pipeline section located in the indoor unit, a second drainage pipeline section located in the saddle bridge structure, and a first drainage pipeline section located in the outdoor unit that are connected in sequence. A third drainage pipe section, the first drainage pipe section is connected to the water receiving pan, and the third drainage pipe section is connected to the water inlet of the drainage pump;

The second drainage pipe section is provided with a first U-shaped bent section, and the first U-shaped bent section passes through the pipe gap.

In some embodiments of the present application, the second drainage pipe section is also provided with a second U-shaped bent section, and the second U-shaped bent section and the first U-shaped bent section share a section of straight pipeline. , the second U-shaped bending section is located horizontally in the inner cavity of the saddle bridge structure and at the side of the sealing component.

beneficial effects

The saddle bridge structure of the saddle-type window air conditioner disclosed in this application can be retracted to adjust the distance between the indoor unit and the outdoor unit to adapt to walls of different thicknesses. Correspondingly, the internal heat exchange pipelines and drainage pipelines Corresponding elongation or shortening will also occur to adapt to the expansion and contraction of the saddle bridge structure. The sealing component is installed across the inner cavity of the saddle bridge structure. A heat exchange pipeline is formed between the sealing component and the side wall of the saddle bridge structure. and the pipe clearance for drainage pipes. The indoor part can be isolated from the outdoor part through the sealing component, and it does not interfere with the telescopic movement of the saddle bridge structure and does not affect the pipe routing in the inner cavity of the saddle bridge structure.

Description of drawings

Figure 1 is a schematic structural diagram of the axis side of the saddle-type air conditioner viewed from the indoor side according to the embodiment;

Figure 2 is a schematic structural diagram of the shaft side of the saddle-type air conditioner viewed from the outdoor side according to the embodiment;

Figure 3 is a structural schematic diagram of the stretched saddle bridge structure of the saddle-type air conditioner according to the embodiment;

Figure 4 is a schematic structural diagram of the structure shown in Figure 3 with the cover omitted;

Figure 5 is a schematic structural diagram of an indoor saddle bridge shell according to an embodiment;

Figure 6 is a schematic structural diagram of the structure shown in Figure 5 observed from Q1 direction;

Figure 7 is an exploded view of an indoor saddle bridge shell according to an embodiment;

Figure 8 is a schematic structural diagram of an outdoor saddle bridge shell according to an embodiment;

Figure 9 is a schematic structural diagram of the structure shown in Figure 8 viewed from Q2 direction;

Figure 10 is an exploded view of an outdoor saddle bridge shell according to an embodiment;

Figure 11 is a schematic diagram of the internal pipe routing structure of the saddle-type air conditioner according to the embodiment;

Figure 12 is a schematic diagram of the installation structure of the sealing component according to the embodiment;

Figure 13 is a schematic structural diagram of the L-shaped bottom plate of the indoor saddle bridge according to the embodiment;

Figure 14 is a schematic structural diagram of the sealing component and terminal box according to the embodiment;

Figure 15 is a schematic structural diagram of a sealing component according to an embodiment;

Figure 16 is a bottom view of a sealing component according to an embodiment;

Figure 17 is a schematic structural diagram of a terminal box according to an embodiment;

Figure 18 is a schematic structural diagram of a drainage pipeline according to an embodiment;

Figure 19 is a schematic structural diagram of the return air pipe group according to the embodiment;

Figure 20 is a schematic structural diagram of a subcooling tube group according to an embodiment.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application. In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outside", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and are not indicated or implied. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application.

This embodiment discloses a saddle-type air conditioner. Referring to FIG. 1 , it includes an indoor unit 100 located on the indoor side, an outdoor unit 200 located on the outdoor side, and a saddle bridge structure 300 connecting the indoor unit 100 and the outdoor unit 200 .

The saddle-type air conditioner has an n-type structure. The indoor unit 100 and the outdoor unit 200 are respectively located at both ends of the saddle bridge structure 300 and are located on the same side of the saddle bridge structure 300 .

When the saddle-type air conditioner is installed on the window, the saddle structure 300 is directly located on the window, the indoor unit 100 is located on the indoor side, and the outdoor unit 200 is located on the outdoor side.

Since the indoor unit 100 and the outdoor unit 200 are both located below the window, the saddle-type air conditioner solves the problem of blocking sunlight after the existing integrated window unit is installed.

Separating the indoor unit 100 and the outdoor unit 200 through the saddle bridge structure 300 helps to prevent the noise of the outdoor unit 200 from being transmitted to the indoor side and improves user comfort.

The indoor unit 100 mainly includes components such as a casing, an indoor heat exchanger, a water tray, a cross-flow fan, and an air duct. There are heat exchange pipelines between the indoor heat exchanger, the outdoor heat exchanger, and the compressor.

The outdoor unit 200 mainly includes components such as a casing, an outdoor heat exchanger, an axial fan, a compressor 220, and a drainage pump 700. The indoor water receiving pan and the outdoor drainage pump 700 are connected through a drainage pipeline 800 to discharge the condensed water in the indoor water receiving pan to the outside.

In some embodiments of the present application, there is a certain gap between the back panel of the indoor unit 100 and the indoor side wall.

In some embodiments of the present application, the air inlet and outlet method of the indoor unit 100 is as follows: referring to Figure 2, air enters from the front and back sides of the indoor unit 100, and air exits from the top.

Specifically, the front side panel of the indoor unit 100 is provided with an indoor front air inlet 112 , the back panel of the indoor unit 100 is provided with an indoor rear air inlet 113 , and the top of the indoor unit 100 is provided with an indoor top air outlet 111 .

The indoor air flows into the inner cavity of the indoor unit 100 from the indoor front air inlet 112 and the indoor rear air inlet 113. After heat exchange by the indoor heat exchanger, it flows out from the indoor top air outlet 111.

The gap between the back panel of the indoor unit 100 and the indoor side wall provides the possibility for air intake from the back side of the indoor unit 100 .

The front and back sides of the indoor unit 100 take in air at the same time. Compared with the existing window unit, the air inlet volume is significantly increased, which helps to improve the heat exchange efficiency of the indoor heat exchanger, thereby improving the heat exchange efficiency of the entire machine.

The simultaneous air intake from the front and back sides ensures sufficient air intake while canceling the bottom air intake, thereby solving the existing problems of increased wind resistance in the water tray and overflow and dripping of condensed water caused by the air intake from the bottom of the indoor unit in the existing technology. The problem.

Since there is no need to open an air inlet at the bottom of the indoor unit, there is no need to reserve too much space between the bottom plate of the indoor unit and the water tray, which helps to reduce the overall height of the indoor unit and reduce the indoor space occupied.

In some embodiments of the present application, there is a certain gap between the back panel of the outdoor unit 200 and the outdoor side wall.

In some embodiments of the present application, the air inlet and outlet method of the outdoor unit 200 is as follows: referring to Figure 1 , air enters the left and right sides, the top and the back side of the outdoor unit 200 respectively, and air exits from the front side.

Specifically, an outdoor rear air inlet 213 is provided on the back panel of the outdoor unit 200, an outdoor side air inlet 212 is provided on the left and right side panels of the outdoor unit 200, and an outdoor top air inlet 214 is provided on the top panel of the outdoor unit 200. An outdoor front air outlet 211 is provided on the front side panel of the outdoor unit 200 .

The outdoor air flows into the inner cavity of the outdoor unit 200 from the outdoor rear air inlet 213, the outdoor side air inlet 212, and the outdoor top air inlet 214. After heat exchange by the outdoor heat exchanger, it flows out from the outdoor front air outlet 211.

In some embodiments of the present application, the bottom of the outdoor unit 200 is provided with a bottom air inlet (not shown).

The gap between the back panel of the outdoor unit 200 and the outdoor side wall provides the possibility for air intake from the back side of the outdoor unit 200 .

The outdoor unit 200 adopts a four-sided air inlet method to increase the air inlet volume, which helps to improve the heat dissipation efficiency of the outdoor heat exchanger and improve the heat exchange efficiency of the entire machine.

The outdoor bottom air inlet can increase the air inlet volume while avoiding the problem of inhaling fallen leaves and other impurities.

In some embodiments of the present application, the saddle bridge structure 300 can be telescopic, and the distance between the indoor unit and the outdoor unit can be adjusted by adjusting the length of the saddle bridge structure 300 to adapt to walls of different thicknesses.

Figures 1 and 2 show a schematic structural diagram of the saddle bridge structure 300 when it is not stretched, and Figure 3 shows a schematic structural diagram of the saddle bridge structure 300 after stretching.

The saddle bridge structure 300 can be provided with multiple telescopic gears for easy adjustment and use.

In some embodiments of the present application, referring to Figures 3 and 4, the saddle bridge structure 300 includes an indoor saddle bridge shell 310 and an outdoor saddle bridge shell 320.

Refer to Figures 5 to 7 for the structure of the indoor saddle bridge shell 310. A first through cavity 313 is formed therein, and the indoor saddle bridge shell 310 is fixedly connected to the indoor unit 100.

Refer to Figures 8 to 10 for the structure of the outdoor saddle bridge shell 320. A second through cavity 323 is formed therein, and the outdoor saddle bridge shell 320 is fixedly connected to the outdoor unit 200.

The indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 are nested with each other, and the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 can move relative to each other to realize the expansion and contraction of the saddle bridge structure 300.

In some embodiments, the outdoor saddle bridge shell 320 is set on the outside of the indoor saddle bridge shell 310, as shown in Figure 4.

In other embodiments, the indoor saddle bridge shell 310 is sleeved on the outside of the outdoor saddle bridge shell 320 .

In some embodiments of the present application, a sliding portion is provided between the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 to make the sliding movement between the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 more reliable and smooth.

The sliding part may be a slide rail structure, or a slideway, a slider structure, etc. provided between the two.

In some embodiments of the present application, the saddle bridge structure 300 is provided with an indoor vertical portion extending downward on the side facing the indoor unit 100. The indoor vertical portion constitutes the back panel of the indoor unit 100 and is fixed to the bottom plate of the indoor unit 100. Connected, the indoor vertical part is provided with an indoor rear air inlet 113.

The saddle bridge structure 300 is provided with an outdoor vertical portion extending downward on the side facing the outdoor unit 200. The outdoor vertical portion constitutes the back panel of the outdoor unit 200 and is fixedly connected to the bottom plate of the outdoor unit 200. An outdoor rear air inlet 213 is provided.

The saddle bridge structure 300 is fixedly connected to the indoor unit 100 and the outdoor unit 200 respectively through two vertical parts, which helps to improve the structural stability between the indoor unit 100, the outdoor unit 200 and the saddle bridge structure 300.

The saddle bridge structure 300 can carry part of the weight of the indoor unit 100 and the outdoor unit 200. The weight is transferred to the window through the saddle bridge structure 300, which helps to improve the safety of the saddle-type air conditioner after installation and reduce the risk of crash. .

In some embodiments of the present application, the inside of the saddle bridge structure 300 is a through-cavity, and a sealing component 400 is provided in the through-cavity to isolate the indoor side from the outdoor side and play the role of temperature insulation and waterproofing.

Taking the outdoor saddle bridge shell 320 being set on the outside of the indoor saddle bridge shell 310 as an example, referring to Figures 11 and 12, the sealing component 400 is disposed in the inner cavity surrounded by the indoor saddle bridge shell 310, and the sealing component 400 is connected to the saddle bridge structure. A piping gap 600 is formed between the side walls of 300 for the piping of the heat exchange pipeline 900 (referring to the return air pipe group and the subcooling pipe group) and the drainage pipeline 800.

When the saddle bridge structure 300 expands and contracts, the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 move relative to each other, and the distance between the indoor unit 10 and the outdoor unit 200 changes. Correspondingly, the internal heat exchange pipeline 900 and the drainage pipeline 800 will also elongate or shorten accordingly to adapt to the expansion and contraction of the saddle bridge structure 300. The pipe clearance 600 provides installation space for the heat exchange pipeline 900 and the drainage pipeline 800. At the same time, through the sealing component 400, The span is installed in the inner cavity of the saddle bridge structure 300, and most areas in the inner cavity of the saddle bridge structure 300 are sealed. After the heat exchange pipeline 900 and the drainage pipeline 800 pass through the pipe clearance 600, they are then Insulation blocks, such as insulation foam, are inserted into the pipe gap 600, and the pipe gap 600 is also sealed. In this way, the entire inner cavity of the saddle bridge structure 300 is reliably sealed, ensuring the isolation and insulation between the indoor and outdoor sides. On the basis of being waterproof, it does not interfere with the routing of the heat exchange pipeline 900 and the drainage pipeline 800.

The saddle bridge structure 300 in this embodiment not only plays the role of connecting the indoor unit 100 and the outdoor unit 200, but also plays the role of installing sealing components, pipes, and wiring. It has multi-functional integration and a more compact structure.

In some embodiments of the present application, referring to Figures 12, 14, and 15, the sealing component 400 is provided with an installation groove, and a terminal box is provided in the installation groove.

In this embodiment, the electrical appliance box of the air conditioner is a variable frequency electrical appliance box, which is large and cannot be installed in the saddle bridge structure. The variable frequency electrical appliance box in this embodiment is located in the outdoor unit 200, and the compressor and variable frequency electrical appliances are in the outdoor unit 200. The wiring harnesses of the box, fan motor, drainage pump, etc., and the wiring harnesses of the fan motor, etc. in the indoor unit 100 are connected accordingly and then connected to the terminal box.

The sealing component 400 not only functions to seal the inner cavity of the saddle bridge structure 300, but also integrates the installation function of the terminal box. The terminal box is located within the saddle bridge structure, between the indoor unit and the outdoor unit, and also facilitates the docking of wire harnesses.

In some embodiments of the present application, referring to Figures 11 and 12, one end of the sealing component 400 is in sealing contact with one side wall of the saddle bridge structure 300, and the other end of the sealing component 400 is in sealing contact with the other side wall of the saddle bridge structure 300. The pipe-running gap 600 is formed. Referring again to FIG. 15 , the sealing component 400 is provided with a pipe-running groove 410 on one end facing the pipe-running gap 600 , and the opening of the pipe-running groove 410 faces the pipe-running gap 600 .

The pipe groove 410 cooperates with the pipe gap 600 and plays a certain role in limiting and accommodating the heat exchange pipeline 900 and the drainage pipe 800 that pass through the pipe gap 600 .

The top of the sealing component 400 is in sealing contact with the top wall of the inner cavity surrounding the saddle bridge structure 300 (specifically, the top wall of the indoor saddle bridge shell 310), and the bottom of the sealing component 400 is in sealing contact with the top wall of the inner cavity that surrounds the saddle bridge structure 300. The bottom wall (specifically, the bottom wall of the indoor saddle bridge shell 310) is sealed and attached to improve the thermal insulation and waterproof effect.

In some embodiments of the present application, referring to Figures 14 and 15, the sealing component 400 is provided with a first installation groove 421 and a second installation groove 422. The first installation groove 421 is provided with a high-voltage terminal box 510, and the second installation groove 422 A weak current terminal box 520 is provided inside.

The first installation groove 421 and the second installation groove 422 have the same structure. The side walls surrounding the first installation groove 421 and the second installation groove 422 are respectively provided with a first opening 431 facing the indoor unit 100 and a first opening 431 facing the outdoor unit 200. The two first openings 431 are facing away from each other, and the two second openings 432 are facing away from each other.

The strong current terminal box 510 and the weak current terminal box 520 have the same structure. The strong current terminal box 510 is used for the connection of strong current lines, and the weak current terminal box 520 is used for the connection of weak current lines. One side wall of the terminal box is provided with a first The opening 431 is directly connected to the first wiring opening 530 , and the other side wall is provided with a second wiring opening 540 that is directly connected to the second opening 432 .

The separation of strong and weak current wiring is realized through two terminal boxes. The structures of the two terminal boxes are the same, which improves the versatility of the terminal boxes. The wiring openings on the strong current terminal box 510 and the weak current terminal box 520 are divergent, further making the strong current Separate from weak current to improve wiring reliability.

In some embodiments of the present application, referring to Figure 14, the sealing component 400 includes a bottom plate 450. The bottom plate 450 is a plate-like structure extending along the width direction of the saddle bridge structure 300. The bottom plate 450 is provided with a first protrusion 441 and a second protrusion. The raised portion 442, the third raised portion 443, the fourth raised portion 444, and the fifth raised portion 445. The first raised portion 441 and the second raised portion 442 are spaced apart along the length direction of the bottom plate 450. The raised portion 443 and the fourth raised portion 444 are spaced apart along the width direction of the bottom plate 450 , and the fifth raised portion 445 is connected between the third raised portion 443 and the fourth raised portion 444 .

The first protruding part 441, the third protruding part 443, the fourth protruding part 444, and the fifth protruding part 445 surround the first mounting groove 421. The first protruding part 441 and the fourth protruding part 444 The gap between them constitutes the first opening 431 of the first mounting groove 421 , and the gap between the first protruding part 441 and the third protruding part 443 constitutes the second opening 432 of the first mounting groove 421 .

The second protruding part 442, the third protruding part 443, the fourth protruding part 444, and the fifth protruding part 445 surround the second mounting groove 422. The connection between the second protruding part 442 and the fourth protruding part 444 is The gap between them constitutes the first opening 431 of the second mounting groove 422 , and the gap between the second protruding part 442 and the third protruding part 443 constitutes the second opening 432 of the second mounting groove 422 .

The sealing component 400 is integrally formed, and the corresponding pipe routing groove 410 and installation groove are formed by the bottom plate 450 and multiple protrusions. On the basis of meeting the pipe routing requirements and line wiring requirements, the bottom plate 450 is connected with the bottom of the indoor saddle bridge shell 310 The wall seal is in close contact, and the top surface of each protrusion is in seal contact with the top wall of the indoor saddle bridge shell 310, thereby increasing the sealing contact area and improving the sealing effect.

In some embodiments of the present application, an inclined section 451 is provided on the side of the bottom plate 450 , and the inclined section 451 is inclined from the groove 410 of the running pipe toward the fourth protruding portion 444 . The inclined section 451 is inclined in the vertical plane to avoid the heat exchange pipeline 900 and the drainage pipeline 800 when the saddle bridge structure 300 expands and contracts, so as to avoid interference with the heat exchange pipeline and the drainage pipeline when the saddle bridge structure 300 expands and contracts.

In some embodiments of the present application, with reference to Figure 15, the bottom of the sealing component 400 is provided with a plurality of concave shapes 460; with reference to Figure 13, the bottom wall that surrounds the inner cavity of the saddle bridge structure 300 (specifically, the bottom wall of the indoor saddle bridge shell 310 ) is provided with a plurality of convex moldings 316; the plurality of concave moldings 460 and the plurality of convex moldings 316 match one-to-one, which on the one hand helps to improve the installation stability of the sealing component 400. The cooperation of the shape 316 plays a pre-positioning role in the installation of the sealing component 400, and then the sealing component 400 is fixed to the saddle bridge structure 300 through screws at one end of the sealing component 400. On the other hand, between the concave shape 460 and the convex pressing shape 316 The cooperation between them also helps to further improve the sealing performance between the bottom of the sealing component 400 and the saddle bridge structure 300 .

In some embodiments of the present application, taking the outdoor saddle bridge shell 320 being set on the outside of the indoor saddle bridge shell 310 as an example, the sealing component 400 is fixedly provided on the transverse portion 3111 of the L-shaped bottom plate of the indoor saddle bridge, and the first mounting groove 421 and The top opening of the second installation groove 422 is open to facilitate the installation of the terminal box. The indoor saddle bridge cover 312 is used to seal the top opening of the terminal box, and at the same time, the top of the sealing component 400 is pressed and sealed.

In some embodiments of the present application, a sealing portion 315 is provided at a position where the sealing component 400 contacts the inner wall of the through cavity surrounding the saddle bridge structure 300. The sealing portion 315 helps to improve the sealing effect of the top of the sealing component on the one hand, and on the other hand In this aspect, condensation water condensed on the inner wall of the saddle bridge structure 300 can be prevented from dripping on the terminal box.

In some embodiments of the present application, the heat exchange pipeline 900 of the saddle-type air conditioner mainly includes a return air pipe group 910, a subcooling pipe group 920, an exhaust pipe, a water soaking pipe, etc.

One end of the subcooling pipe group 920 is connected to the liquid inlet end of the evaporator (corresponding to the indoor heat exchanger), and the other end is connected to the water soaking pipe; one end of the return air pipe group 910 is connected to the air outlet end of the evaporator, and the other end is connected to the compressor 220 The suction port of , the other end is connected to the liquid outlet of the condenser.

Referring to Figure 19, the return air pipe group 910 includes a first return air pipe section 911, a second return air pipe section 912, and a third return air pipe section 913 that are connected in sequence. The first return air pipe section 911 is connected to the indoor heat exchanger 120, and the third return air pipe section 911 is connected to the indoor heat exchanger 120. The air pipe section 913 is connected to the compressor 220 , and the second return air pipe section 912 has a U-shaped structure and is located in the inner cavity of the saddle bridge structure 300 .

The three-section structure of the return air pipe group 910 facilitates processing and improves the technological level.

The return air pipe group 910 uses copper pipes to avoid refrigerant leakage.

When the saddle bridge structure 300 is stretched, the U-shaped second return pipe section 912 serves as a certain amount of buffer for pipeline stretching, which satisfies the telescopic function of the saddle bridge structure 300 .

In some embodiments of the present application, the U-shaped structure of the second return air duct section 912 is a semicircular structure. When the whole machine is running, the vibration of the pipeline is actually the transmission of force, and the semicircular structure of the second return air duct section 912 When the structure is stressed, the forces on the arc structure will cancel each other out during the transmission, which plays a role in shock absorption. At the same time, the arc form designed for the pipeline is relatively square or similar to the square form of the pipeline at the same level. In the space, the semicircular structure uses less pipelines, which reduces pipeline costs to a certain extent.

In some embodiments of the present application, the second return air pipe section 912 passes through the pipe gap 600 between the sealing component 400 and the inner cavity side wall of the saddle bridge structure 300, and surrounds one end of the sealing component 400 horizontally, making full use of The internal space of the saddle bridge structure 300 realizes pipe routing.

The sealing component 400 is located in the space enclosed by the U-shaped structure of the second return air pipe section 912. When the saddle bridge structure 300 is stretched, there can be enough margin on the left and right sides of the sealing component 400 to ensure that the pipeline is not blocked during the pulling process. Contact with sealing components.

In some embodiments of the present application, a spring 914 is set on the second air return pipe section 912 to prevent the second air return pipe section 912 from being flattened or deflated during the stretching process.

The outer circumference of the second air return pipe section 912 is covered with a heat insulation sleeve (not shown), and the heat insulation sleeve is covered on the outer circumference of the spring 914 to prevent the second air return pipe section 912 from generating condensed water.

The two ends of the second return air pipe section 912 are respectively enlarged. On the one hand, they are used to connect with the first air return pipe section 911 and the third return air pipe section 913. On the other hand, they play a limiting role for the spring.

In some embodiments of the present application, the third return air pipeline section 913 includes a third return air pipeline section 9131, a third return air pipeline U-shaped section 9132, and a third return air pipeline section 9133, which are connected in sequence. The opening of the profile section 9132 faces upward, a third section 9131 of the third return pipeline is connected to the second section 912 of the second return pipeline, and a second section 9133 of the third return pipeline is connected to the suction port of the compressor 220 .

The U-shaped section 9132 of the third return air pipeline plays a role in assisting tensile deformation, can bear a small part of the tensile force, and plays a buffering role to avoid directly connecting the compressor 220 and giving a lateral force to the compressor, causing the compressor to be damaged. Force affects performance and vibration.

In some embodiments of the present application, the plane of the third air return pipeline U-shaped section 9132 is parallel to the central axis of the compressor 220, which further reduces vibration.

The first return air pipe section 911 and the third return air pipe section 913 are fixed on the back panels of the indoor unit and outdoor unit with binding wires and other structures, so that when the return air pipe is stretched and stressed, it will not stretch the pipelines in other places. force to avoid deformation or breakage of the pipeline.

In some embodiments of the present application, referring to Figure 20, the subcooling tube group 920 passes through the saddle bridge structure. The subcooling tube group 920 is provided with a U-shaped section 921. The U-shaped section 921 is located in the saddle bridge structure 300, and the U-shaped section 921 is located in the saddle bridge structure 300. The U-shaped structures of 921 and the second air return pipe section 912 are consistent to ensure consistent pulling of the entire machine.

The supercooling tube group 920 is covered with heat shrink tubes to avoid the generation of condensation water and direct contact with other pipelines.

In some embodiments of the present application, referring to Figure 20, the subcooling pipe group 920 also includes a section of subcooling pipe 922, a second section of subcooling pipe 923 and a third section of subcooling pipe 924 connected in sequence. The section of subcooling pipe 922 is along the length of the outdoor unit. The upper position of the back plate extends horizontally to connect with the U-shaped section 921 of the subcooling pipe group. The second section 923 of the subcooling pipe extends vertically along the sides of the back plate of the outdoor unit to the chassis of the outdoor unit. The third pipe section 924 extends horizontally along the chassis of the outdoor unit.

The wiring of the subcooling pipe group 920 and the return air pipe group 910 do not interfere with each other, and the structure is compact.

In some embodiments of the present application, referring to Figure 11, the compressor 220 is installed at a corner of the outdoor unit 200. Correspondingly, the third return pipe section 913 is located on the same side of the inner cavity of the outdoor unit 200 as the compressor 220. The drainage pipe section 830 is located on the other side of the inner cavity of the outdoor unit, that is, the third air return pipe section 913 and the third drainage pipe section 830 in the outdoor unit are arranged oppositely and do not interfere with each other.

The second drainage pipe section 820 and the second air return pipe section 912 are tied together at one or two places with wires, but they cannot be tied tightly to prevent the drainage pipe from being crushed, and they only serve as a limiter.

Corresponding to the tensile structure of the saddle bridge structure, the lengths of the return air pipe group 910 and the supercooling pipe group 920 are increased compared with conventional window machines. In some embodiments of the present application, the return air pipe group 910 and the supercooling pipe group 920 are both provided with There is an evacuation pipe, and two evacuation points are used to evacuate the heat exchange pipeline at the same time to improve evacuation efficiency and production efficiency.

In some embodiments of the present application, the first evacuation pipe 931 is provided on the third air return pipe section 913, specifically on the second section 9132 of the third return air pipe, and the two are welded to facilitate processing.

In some embodiments of the present application, the subcooling tube group 920 is provided with a second evacuation tube 932 close to the outdoor heat exchanger. Specifically, the second evacuation tube 932 is provided on the third section 924 of the subcooling tube to facilitate production and processing.

In some embodiments of the present application, the first evacuation pipe 931 may also be provided on the exhaust pipe.

In some embodiments of the present application, referring to Figure 11, the outdoor unit 200 is provided with a drainage pump 700, and the bottom of the indoor unit 100 is provided with a water receiving tray. The water receiving tray is used to receive condensed water generated by the indoor evaporator. The drainage pump 700 is connected to the water receiving pan through a drainage pipeline 800 to drain indoor condensed water.

The drainage pipeline 800 is led from the indoor water receiving pan, passes through the inner cavity of the indoor unit 100, the inner cavity of the saddle bridge structure 300, and the inner cavity of the outdoor unit 200, and is led to the water inlet of the drainage pump 700.

The part of the drainage pipeline 800 located in the saddle bridge structure 300 has at least one U-shaped bending section. When the saddle bridge structure 300 is stretched, the U-shaped bending section serves as a certain amount of buffer for the pipeline stretching, satisfying the requirements The telescopic function of the saddle bridge structure 300.

In some embodiments of the present application, referring to Figures 11 and 18, the drainage pipeline 800 includes a first drainage pipeline section 810 located in the indoor unit 100, a second drainage pipeline section 820 located in the saddle bridge structure 300, and a first drainage pipeline section 820 located in the saddle bridge structure 300 that are connected in sequence. In the third drainage pipe section 830 of the outdoor unit 200, the first drainage pipe section 810 is connected to the water receiving pan, and the third drainage pipe section 830 is connected to the water inlet of the drainage pump 700.

The second drainage pipe section 820 is disposed in the pipe gap between the sealing component 400 and the inner cavity side wall of the saddle bridge structure 300 .

The second drainage pipe section 820 is provided with a first U-shaped bent section 821 , and the first U-shaped bent section 821 surrounds one side end of the sealing component 400 horizontally.

In some embodiments of the present application, the two straight pipe sections of the first U-shaped bent section 821 are located on both sides of the sealing component 400, and the arc section of the first U-shaped bent section 821 is located on one end side of the sealing component. The saddle bridge structure When the length of the first U-shaped bending section 821 is extended by 300 degrees, the first U-shaped bending section 821 will adaptively deform to meet the tensile deformation requirements.

In some embodiments of the present application, the second drainage pipe section 820 is also provided with a second U-shaped bent section 822. The second U-shaped bent section 822 and the first U-shaped bent section 821 share a section of straight pipeline. The two U-shaped bending sections 822 are located horizontally in the inner cavity of the saddle bridge structure 300 and at the sides of the sealing component 400 .

The second U-shaped bending section 822 plays a role in assisting tensile deformation to ensure that when the saddle bridge structure 300 is stretched to the maximum length, the drainage pipeline 800 can still maintain a sufficient length to meet normal drainage.

In some embodiments of the present application, the first drainage pipeline section 810 includes a first drainage pipeline vertical section 811 and a first drainage pipeline transverse section 812 that are connected in sequence.

The first vertical section 811 of the drainage pipe is connected to the water tray. The vertical section 812 of the first drainage pipe is close to the back plate of the indoor unit and extends in the vertical direction. It can be fixed with a positioning structure such as buckles to improve the pipeline. Stability.

The first drainage pipe transverse section 812 is connected to the first U-shaped bend section 821 and is located on the side of the sealing component 400 close to the indoor unit.

The layout structure of the first drainage pipe section 810 does not affect the installation of other components in the inner cavity of the indoor unit 100, makes full use of the inner cavity space of the indoor unit, and has a compact structure.

In some embodiments of the present application, the outdoor unit 200 is provided with a rear partition 230, and the rear partition 230 is used to install components such as a condenser and a fan. The drainage pump 700 is installed on the rear partition 230 , and the third drainage pipe section 830 is connected to the second U-shaped bending section 822 .

The installation of the drainage pump 700 makes full use of the existing structure of the outdoor unit, makes full use of space, and has a compact structure.

In some embodiments of the present application, the third drainage pipeline section 830 includes a third drainage pipeline vertical section I 831, a third drainage pipeline transverse section 832 and a third drainage pipeline vertical section II 833 that are connected in sequence. The vertical section I831 of the road is connected to the second U-shaped bend section 822, the third horizontal section 832 of the drainage pipeline extends along the chassis of the outdoor unit, and the vertical section II833 of the third drainage pipeline extends upward along the rear partition 230 to the drainage pump. 700 water inlet.

The vertical section II 833 of the third drainage pipe can be fixed on the rear partition 230 through buckles and other structures to prevent the water pipe from shaking and interfering with the fan.

The layout structure of the third drainage pipe 830 does not affect the installation of other components in the inner cavity of the outdoor unit 200, fully utilizing the inner cavity space of the outdoor unit, and having a compact structure.

Regarding the specific structure of the indoor saddle bridge shell 310, in some embodiments of the present application, with reference to Figures 5 to 7, the indoor saddle bridge shell 310 includes an indoor saddle bridge L-shaped bottom plate 311 and an indoor saddle bridge cover plate 312. The indoor saddle bridge cover plate 312 is provided on the top of the transverse portion 3111 of the L-shaped bottom plate of the indoor saddle bridge, and surrounds the first through cavity 313 .

The vertical part 3112 of the L-shaped bottom plate of the indoor saddle bridge is the indoor vertical part mentioned above and constitutes the back plate of the indoor unit 100. Referring to Figure 4, the vertical part 3112 of the L-shaped bottom plate of the indoor saddle bridge is connected with the indoor unit. 100 base plate fixed connection.

The vertical portion 3112 of the L-shaped bottom plate of the indoor saddle bridge is provided with a vent, which is the indoor rear air inlet 113 .

The indoor saddle bridge reinforcing plate 314 is provided at the transition position between the horizontal part 3111 and the vertical part 3112 of the indoor saddle bridge L-shaped bottom plate, which further improves the structural strength of the indoor saddle bridge L-shaped bottom plate 3111.

Regarding the specific structure of the outdoor saddle bridge shell 320, in some embodiments of the present application, with reference to Figures 8 to 10, the outdoor saddle bridge shell 320 includes an outdoor saddle bridge L-shaped bottom plate 321 and an outdoor saddle bridge cover plate 322. The outdoor saddle bridge cover plate 322 is provided on the top of the transverse portion 3221 of the L-shaped bottom plate of the outdoor saddle bridge, and surrounds the second through cavity 323 .

The vertical part 3212 of the L-shaped bottom plate of the outdoor saddle bridge is the outdoor vertical part mentioned above and constitutes the back plate of the outdoor unit 200. The vertical part 3212 of the L-shaped bottom plate of the outdoor saddle bridge is fixed to the bottom plate of the outdoor unit 200. connect.

The vertical part 3212 of the L-shaped bottom plate of the outdoor saddle bridge is provided with a vent, which is the outdoor rear air inlet 213.

An outdoor saddle bridge reinforcing plate 324 is provided at the transition position between the horizontal part 3221 and the vertical part 3222 of the L-shaped bottom plate of the outdoor saddle bridge, which further improves the structural strength of the L-shaped bottom plate 321 of the outdoor saddle bridge.

In some embodiments of the present application, referring to Figures 3 and 4, the saddle-type air conditioner further includes a saddle bridge shell 330, which is fixedly connected to the outer one of the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320.

When the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 move away from each other, the saddle bridge shell 330 blocks the inner one of the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 .

When the saddle bridge structure 300 is not stretched, referring to FIGS. 1 and 2 , the saddle bridge cover 330 covers both the indoor saddle bridge shell 310 and the outdoor saddle bridge shell 320 .

When the saddle bridge structure 300 is stretched, for example, the outdoor saddle bridge shell 320 is set on the outside of the indoor saddle bridge shell 310. Referring to Figures 3 and 4, the indoor saddle bridge shell 310 will be exposed. At this time, the saddle bridge cover 330 will The exposed indoor saddle bridge shell 310 is shielded.

In the above description of the embodiments, specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily imagined by those skilled in the art within the technical scope disclosed by the present invention should be covered. within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A saddle-type window air conditioner is characterized by including:

An indoor unit, which is equipped with an indoor heat exchanger and a water tray, and the water tray is used to receive the condensed water generated by the indoor heat exchanger;

An outdoor unit is equipped with an outdoor heat exchanger, a compressor, and a drainage pump. A heat exchange pipeline is provided between the indoor heat exchanger, the outdoor heat exchanger, and the compressor. The connection A drainage pipeline is provided between the water pan and the drainage pump;

A saddle bridge structure is used to connect the indoor unit and the outdoor unit. The saddle bridge structure is telescopic to adjust the distance between the indoor unit and the outdoor unit;

a sealing component, which is disposed in the inner cavity of the saddle bridge structure for isolating the indoor unit and the outdoor unit; a sealing component is formed between the sealing component and the side wall of the saddle bridge structure for the There is a pipe clearance for the heat exchange pipeline and the drainage pipeline, and the sealing component is provided with an installation groove;

A terminal box is located in the installation groove.
The saddle-type window air conditioner according to claim 1, characterized in that,

One end of the sealing component is in sealing contact with one side wall of the saddle bridge structure, and the pipe routing gap is formed between the other end of the sealing component and the other side wall of the saddle bridge structure. The component is provided with a pipe-running groove on one end facing the pipe-running gap, and the opening of the pipe-running groove faces the pipe-running gap;

The top of the sealing component is in sealing contact with the top wall that surrounds the inner cavity of the saddle bridge structure, and the bottom of the sealing component is in sealing contact with the bottom wall that surrounds the inner cavity of the saddle bridge structure.
The saddle-type window air conditioner according to claim 2, characterized in that,

The sealing component is provided with a first installation groove and a second installation groove, a strong current terminal box is provided in the first installation groove, and a weak current terminal box is provided in the second installation groove;

The first installation groove and the second installation groove have the same structure. The side walls surrounding the installation groove are provided with a first opening toward the indoor unit side and a second opening toward the outdoor unit side. The two first openings are away from each other, and the two second openings are away from each other;

The strong current terminal box has the same structure as the weak current terminal box. One side wall of the terminal box is provided with a first wiring opening directly connected to the first opening, and the other side wall is provided with a first wiring opening connected to the first opening. The second opening directly faces the connected second wiring port.
The saddle-type window air conditioner according to claim 3, characterized in that,

The sealing component includes a bottom plate, which is a plate-like structure extending along the width direction of the saddle bridge structure. The bottom plate is provided with a first protrusion, a second protrusion, a third protrusion, a fourth raised portion and a fifth raised portion; the first raised portion and the second raised portion are spaced apart along the length direction of the bottom plate; the third raised portion and the fourth raised portion are The raised portions are arranged at intervals along the width direction of the bottom plate, and the fifth raised portion is connected between the third raised portion and the fourth raised portion;

The first protruding part, the third protruding part, the fourth protruding part and the fifth protruding part enclose the first mounting groove, and the first protruding part and the The gap between the fourth protruding parts constitutes the first opening of the first mounting groove, and the gap between the first protruding part and the third protruding part constitutes the third opening of the first mounting groove. Two openings;

The second protruding part, the third protruding part, the fourth protruding part, and the fifth protruding part enclose the second mounting groove, and the second protruding part is connected with the The gap between the fourth protruding parts constitutes the first opening of the second mounting groove, and the gap between the second protruding part and the third protruding part constitutes the third opening of the second mounting groove. Two spoke.
The saddle-type window air conditioner according to claim 4, characterized in that,

An inclined section is provided on a side of the bottom plate, and the inclined section is inclined from the pipe groove to the fourth protruding portion.
The saddle-type window air conditioner according to any one of claims 1 to 5, characterized in that,

The bottom of the sealing component is provided with a plurality of concave shapes, and the bottom wall surrounding the inner cavity of the saddle bridge structure is provided with a plurality of convex moldings. The plurality of concave shapes are integrated with the plurality of convex moldings. One corresponding match.
The saddle-type window air conditioner according to any one of claims 1 to 5, characterized in that,

The heat exchange pipeline includes a return air pipe group, and the return air pipe group includes a first return air pipe section, a second air return pipe section, and a third return air pipe section that are connected in sequence;

The first return air pipe section is connected to the indoor heat exchanger, the third return air pipe section is connected to the compressor, and the second return air pipe section is a U-shaped structure and is located at the end of the saddle bridge structure. In the inner cavity, the second air return pipe section passes through the pipe gap.
The saddle-type window air conditioner according to claim 7, characterized in that,

The outdoor unit extends downward from the saddle bridge structure;

The third return air pipeline section includes a first section of the third return air pipeline, a U-shaped section of the third return air pipeline, and a second section of the third return air pipeline, and the opening of the U-shaped section of the third return air pipeline is Upwards, one section of the third return air pipeline is connected to the second air return pipeline section, and the second section of the third return air pipeline is connected to the suction port of the compressor.
The saddle-type window air conditioner according to any one of claims 1 to 5, characterized in that,

The drainage pipeline includes a first drainage pipeline section located in the indoor unit, a second drainage pipeline section located within the saddle bridge structure, and a third drainage pipeline section located in the outdoor unit that are connected in sequence, so The first drainage pipe section is connected to the water receiving pan, and the third drainage pipe section is connected to the water inlet of the drainage pump;

The second drainage pipe section is provided with a first U-shaped bent section, and the first U-shaped bent section passes through the pipe gap.
The saddle-type window air conditioner according to claim 9, characterized in that,

The second drainage pipe section is also provided with a second U-shaped bent section. The second U-shaped bent section and the first U-shaped bent section share a section of straight pipeline. The second U-shaped bent section The bent section is located horizontally in the inner cavity of the saddle bridge structure and at the side of the sealing component.