Branching box and multi-connected air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a branch box and a multi-connected air conditioner, the branch box comprises a shell and a pipeline assembly, an inner container is arranged in the shell, the inner container comprises a base and a surface cover, and a mounting cavity is formed between the base and the surface cover; the pipeline assembly is arranged in the mounting cavity and comprises a plurality of manifolds and a plurality of main pipes, first pipe joints are arranged at the ends of the manifolds, second pipe joints are arranged at the ends of the main pipes, and the first pipe joints and the second pipe joints are arranged outside the shell; wherein the base is provided with at least two fixing mechanisms, at least one manifold is fixed to one fixing mechanism, and at least one main pipe is fixed to the other fixing mechanism. At least one manifold of the pipeline assembly is fixed to the fixing mechanism, and at least one main pipe is fixed to the fixing mechanism, so that the pipeline assembly is prevented from being separated from the base of the inner container, the pipeline assembly is stably supported, deformation of the pipeline assembly is prevented, and the risk of leakage of the pipeline assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a branch box and a multi-connected air conditioner. Background Art

[0002] In the related art, the branch box used in the multi-split air conditioner has a pipe assembly, which generally includes an input pipe group and an output pipe assembly, and the input pipe assembly and the output pipe assembly each include a plurality of branch pipes. There is no fixed structure between the pipe assembly and the inner tank, and the pipe assembly is easy to fall off during the installation and maintenance process, and requires additional support, which will cause deformation of the pipe assembly and even leakage. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a branch box, which can fix the pipeline components and prevent deformation and leakage by improving the structure of the inner tank.

[0004] According to the embodiment of the first aspect of the utility model, the branch box includes a shell and a pipe assembly, an inner shell is arranged inside, the inner shell includes a base and a surface cover, and an installation cavity is formed between the base and the surface cover; the pipe assembly is arranged in the installation cavity, the pipe assembly includes a plurality of manifolds and a plurality of main pipes, a first pipe joint is arranged at the end of the manifold, a second pipe joint is arranged at the end of the main pipe, and the first pipe joint and the second pipe joint are arranged outside the shell; wherein the base is provided with at least two fixing mechanisms, at least one of the manifolds is fixed to one of the fixing mechanisms, and at least one of the main pipes is fixed to another of the fixing mechanisms.

[0005] The heat exchanger according to the first embodiment of the utility model has at least the following beneficial effects:

[0006] At least two fixing mechanisms are provided at the base of the inner tank to fix the pipeline assembly, wherein at least one manifold of the pipeline assembly is fixed to the fixing mechanism, and at least one main pipe is fixed to the fixing mechanism, thereby preventing the pipeline assembly from being separated from the base of the inner tank. During the installation of the branch box or maintenance work, the pipeline assembly can be stably supported to facilitate operation, prevent deformation of the pipeline assembly, and reduce the risk of leakage of the pipeline assembly.

[0007] According to some embodiments of the first aspect of the utility model, the fixing mechanism includes a semicircular groove and two clamping plates, the two clamping plates are arranged on both sides of the semicircular groove, and the two clamping plates cooperate to clamp the manifold or the main pipe.

[0008] According to some embodiments of the first aspect of the utility model, the opposite side surfaces of the two clamping plates are configured as arc-shaped surfaces, and the arc-shaped surfaces are concentrically arranged with the semicircular groove and have the same radius.

[0009] According to some embodiments of the first aspect of the utility model, pressing parts are respectively provided on the opposite sides of the two clamping plates, and the pressing parts are used to push the two clamping plates away from each other.

[0010] According to some embodiments of the first aspect of the utility model, the base is provided with a plurality of first tube grooves, each of which is provided with a manifold or a main tube, and the surface cover is provided with second tube grooves, which correspond one to one with the first tube grooves.

[0011] According to some embodiments of the first aspect of the utility model, the base is provided with a connecting column, the surface cover is provided with a slot matching the connecting column, one connecting column is arranged on both sides of each first tube slot, and one slot is arranged on both sides of each second tube slot.

[0012] According to some embodiments of the first aspect of the utility model, the shell includes a first side plate, and the first side plate is provided with a plurality of through holes for the manifold and the main pipe to pass through.

[0013] According to some embodiments of the first aspect of the utility model, the base is provided with a first positioning groove, the end of the main pipe facing away from the second pipe joint is located in the first positioning groove, and the face cover is provided with a second positioning groove, and the second positioning groove cooperates with the first positioning groove to define the main pipe.

[0014] According to some embodiments of the first aspect of the utility model, the base includes a bottom plate and a bracket, the bottom plate and the surface cover are made of foam plastics, the bracket is an injection molded part, the bracket and the bottom plate are adhesively connected, and the fixing mechanism is arranged on the bracket.

[0015] The multi-split air conditioner according to the second embodiment of the utility model includes the branch box described in the first embodiment.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the structure of the branch box of some embodiments of the first aspect of the utility model;

[0019] Figure 2 A schematic diagram of the installation process of a branch box in some embodiments of the first aspect of the utility model;

[0020] Figure 3 It is an exploded schematic diagram of the inner tank and the pipeline assembly in some embodiments of the first aspect of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the base in some embodiments of the first aspect of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the cover in some embodiments of the first aspect of the utility model.

[0023] The figures are as follows:

[0024] The housing 100, the first side plate 110, and the air guide cover 120;

[0025] Inner container 200, mounting cavity 201, base 210, first tube groove 211, connecting column 212, first positioning groove 213, cover 220, second tube groove 221, slot 222, second positioning groove 223, fixing mechanism 230, semicircular groove 231, clamping plate 232, pressing portion 233, bottom plate 240, bracket 250;

[0026] Pipe assembly 300 , manifold 310 , first pipe joint 311 , main pipe 320 , second pipe joint 321 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The branch box is a component of a multi-split air conditioner, which is used to divert the refrigerant and output it to multiple indoor units. The pipeline assembly of the branch box generally includes an input pipe group and an output pipe assembly, and both the input pipe assembly and the output pipe assembly include multiple branch pipes. There is no fixed structure between the current pipeline assembly and the inner tank. Since the inner tank is a split structure, the pipeline assembly is easy to fall off during the installation and maintenance process, and the operator needs to provide additional support, such as holding the pipeline assembly with hands, which is not convenient for operation. In addition, the lack of stable support for the pipeline assembly will cause the pipeline assembly to deform, and deformation may even cause leakage, affecting the reliability of the use of the branch box.

[0032] To this end, the embodiment of the first aspect of the utility model proposes a branch box, which increases a fixed structure in the inner tank to limit the pipeline components, thereby facilitating installation and maintenance operations and helping to improve the reliability of the branch box.

[0033] like Figures 1 to 5 As shown, the embodiment of the first aspect of the utility model proposes a branch box, which includes a shell 100 and a pipeline assembly 300, wherein the shell 100 is the main body of the branch box and serves as an installation base. The shell 100 is usually assembled from a plurality of sheet metal forming panels, and has sufficient structural strength and rigidity, and each panel can be disassembled, for example, each panel is fixedly connected by screws, and one or more panels can be disassembled by removing the screws. An inner liner 200 is arranged inside the shell 100, and the inner liner 200 includes a base 210 and a cover 220. An installation cavity 201 is formed between the base 210 and the cover 220 for installing the pipeline assembly 300. The main function of the inner liner 200 is to limit the pipeline assembly 300 and insulate, thereby reducing the loss of cold of the refrigerant.

[0034] The pipe assembly 300 generally includes a plurality of manifolds 310 and two main pipes 320. The two main pipes 320 are divided into an input pipe and an output pipe. The input pipe is connected to the plurality of manifolds 310 at the same time, and the output pipe is connected to the plurality of manifolds 310 at the same time, so as to divert the refrigerant and supply it to the plurality of indoor units of the multi-split air conditioner. A first pipe joint 311 is provided at the end of the manifold 310, and a second pipe joint 321 is provided at the end of the main pipe 320. The first pipe joint 311 and the second pipe joint 321 are arranged outside the housing 100. The first pipe joint 311 can be used to connect the pipes of the indoor unit for easy installation, and the second pipe joint 321 can be used to connect the pipes of the outdoor unit for easy assembly.

[0035] Reference Figure 2It is understandable that the branch box is usually suspended from the ceiling. During the installation process, one of the panels of the shell 100 is first disassembled, and the cover 220 of the inner tank 200 is removed, and then the shell 100 is suspended from the ceiling, and then the expansion valve, temperature sensor, etc. of the pipeline assembly 300 are connected, and then the cover 220 and the disassembled panels are installed to complete the installation of the branch box. In addition, when repairing the branch box, it is necessary to disassemble one of the panels of the shell 100 and the cover 220, and then check the pipeline assembly 300. It can be seen that during the installation and maintenance operations, the pipeline assembly 300 is in a suspended state. Since the existing inner tank does not fix the pipeline assembly 300, it is difficult to operate. The operator needs to additionally support the pipeline assembly 300, and the pipeline assembly 300 is prone to tilting and shifting, resulting in deformation of the pipeline assembly 300. In particular, the capillary of the pipeline assembly 300 is easily pulled and deformed, resulting in desoldering of the interface, causing leakage in the pipeline assembly 300, affecting the performance and reliability of the branch box.

[0036] Therefore, in some embodiments of the present invention, a fixing mechanism 230 is provided at the base 210 of the inner tank 200, and the number of the fixing mechanisms 230 is at least two, at least one fixing mechanism 230 is used to fix the manifold 310, and at least one fixing mechanism 230 is used to fix the main pipe 320, so that the connection between the pipeline assembly 300 and the base 210 is stable.

[0037] Therefore, the branch box fixes at least two fixing mechanisms 230 on the base 210 to fix at least one manifold 310 and at least one main pipe 320 of the pipeline assembly 300, thereby preventing the pipeline assembly 300 from detaching from the base 210 during the installation and maintenance processes, stably supporting the pipeline assembly 300, facilitating operation, preventing deformation of the pipeline assembly 300, and helping to reduce the risk of leakage of the pipeline assembly 300.

[0038] It is understandable that, considering that the pipeline assembly 300 is a whole, two fixing mechanisms 230 can be set to fix one manifold 310 and one main pipe 320 respectively, or three, four or more fixing mechanisms 230 can be set to fix multiple manifolds 310 and main pipes 320 at the same time. The design can be based on the specific structure, weight, volume and other factors of the pipeline assembly 300, which are not specifically limited in the present utility model.

[0039] It is understandable that there are multiple options for the structure of the fixing mechanism 230. For example, the fixing mechanism 230 can be a semi-circular fixing plate, which is fixed to the base 210 by fasteners, and the fixing plate is used to lock the manifold 310 or the main pipe 320; or, the fixing mechanism 230 can be a movable strip plate, which is fixed to the base 210 by snaps, and the strip plate is used to lock the manifold 310 or the main pipe 320.

[0040] Reference Figure 3 and Figure 4 In some embodiments of the first aspect of the present invention, the fixing mechanism 230 includes a semicircular groove 231 and two clamping plates 232, the two clamping plates 232 are arranged on both sides of the semicircular groove 231, the manifold 310 or the main pipe 320 is placed in the semicircular groove 231, the radius of the semicircular groove 231 matches the radius of the manifold 310 or the main pipe 320, and then the two clamping plates 232 are used to clamp the manifold 310 or the main pipe 320 to achieve fixation. It can be understood that the two clamping plates 232 are cantilever structures, the distance between the ends of the two clamping plates 232 is less than the diameter of the manifold 310 or the main pipe 320, the clamping plates 232 have a certain elasticity, and the manifold 310 or the main pipe 320 is clamped by elasticity; or, a gasket is set on the outer wall of the manifold 310 or the main pipe 320, and the two clamping plates 232 clamp the manifold 310 or the main pipe 320 through the gasket, which can also achieve the purpose of fixing the pipeline assembly 300.

[0041] In addition, the two clamps 232 can also be arranged vertically, and the distance between the two clamps 232 is greater than or equal to the diameter of the manifold 310 or the main pipe 320. Protrusions are provided on the opposite sides of the two clamps 232. The manifold 310 or the main pipe 320 is clamped by the protrusions, which can also achieve the purpose of fixing the pipeline assembly 300.

[0042] It can be understood that in order to better clamp the manifold 310 or the main pipe 320, the opposite sides of the two clamps 232 are set to arc-shaped surfaces, and the arc-shaped surfaces are concentrically arranged with the semicircular groove 231 and have the same radius, that is, the arc-shaped surfaces are in contact with the outer wall surface of the manifold 310 or the main pipe 320, so that the two clamps 232 are in contact with the manifold 310 or the main pipe 320, providing a more stable fixing structure to prevent the manifold 310 or the main pipe 320 from shaking, which is beneficial to reduce the operating noise of the branch box and avoid wear of the manifold 310 or the main pipe 320 due to repeated friction.

[0043] It is understandable that, considering the deviation of manufacturing dimensions, the radius of the arc surface can also be larger than the radius of the manifold 310 or the radius of the main pipe 320. After assembly, a portion of the arc surface must abut against the outer wall of the manifold 310 or the main pipe 320, which can also meet the requirements of fixing the pipeline assembly 300 and reduce the manufacturing accuracy of the clamp 232 and reduce costs.

[0044] It is understandable that if Figure 3As shown, a pressing portion 233 is provided on the opposite sides of the two clamping plates 232, and the function of the pressing portion 233 is to facilitate the operator to push the two clamping plates 232 away from each other, so as to install the manifold 310 or the main pipe 320 into the semicircular groove 231, which is convenient for operation. In addition, when disassembling the pipeline assembly 300, the operator pushes the two clamping plates 232 away from each other through the pressing portion 233, which facilitates the disassembly work.

[0045] It is understandable that if Figure 4 As shown, the structures of the two clamping plates 232 are consistent, and the gap between the two clamping plates 232 is located in the middle. The two clamping plates 232 can also be set to an inconsistent structure, and the gap between the two clamping plates 232 deviates from the middle, such as the gaps of the two fixing mechanisms 230 are separated, which is more reliable for limiting the pipeline assembly 300. Along the axial direction of the semicircular groove 231, the length of the clamping plate 232 can be consistent with the length of the semicircular groove 231, or it can be different, according to the actual structural design.

[0046] It can be understood that in some embodiments of the first aspect of the utility model, in order to simultaneously limit multiple manifolds 310 and main pipes 320, multiple first pipe grooves 211 are provided on the base 210, and a manifold 310 or a main pipe 320 is arranged in each first pipe groove 211, and the corresponding surface cover 220 is provided with a second pipe groove 221, and the second pipe groove 221 corresponds to the first pipe groove 211 one by one, and the two cooperate to clamp the manifold 310 or the main pipe 320, and the radius of the second pipe groove 221 and the radius of the first pipe groove 211 match the radius of the manifold 310 or the radius of the main pipe 320, which can prevent the manifold 310 or the main pipe 320 from shaking.

[0047] It is understandable that if Figure 4 As shown, the first tube groove 211 and the semicircular groove 231 are coaxially arranged and connected to accommodate the manifold 310 or the main tube 320. The first tube groove 211 and the semicircular groove 231 can also be separated by a certain distance. Alternatively, the first tube groove 211 and the semicircular groove 231 are the same groove, the axial length of the first tube groove 211 is greater than the axial length of the second tube groove 221, and the two clamping plates 232 and the second tube groove 221 are staggered in the axial direction of the first tube groove 211, which can also fix the manifold 310 or the main tube 320.

[0048] Reference Figure 4 and Figure 5In some embodiments of the first aspect of the utility model, in order to achieve accurate positioning and connection between the base 210 and the face cover 220, the base 210 is provided with a connecting column 212, and the face cover 220 is provided with a slot 222 that matches the connecting column 212. During assembly, the connecting column 212 is inserted into the slot 222 to achieve accurate positioning, and a threaded hole can be provided on the end face of the connecting column 212, and a screw is passed through the slot 222, and the screw is screwed into the threaded hole of the connecting column 212, so that the base 210 and the face cover 220 are fixedly connected to prevent the face cover 220 from falling off; in addition, by locking the screws, the base 210 and the face cover 220 are tightly fitted to achieve sealing, and the inner wall of the second pipe groove 221 cooperates with the inner wall of the first pipe groove 211 to clamp the manifold 310 or the main pipe 320, which also achieves sealing and is beneficial to heat insulation.

[0049] It is understandable that if Figure 4 and Figure 5 As shown, a connecting column 212 is arranged on both sides of each first tube groove 211, and a slot 222 is arranged on both sides of each corresponding second tube groove 221. During assembly, each first tube groove 211 and the corresponding second tube groove 221 are accurately positioned, and then fixed with screws to stably clamp the manifold 310 or the main tube 320. Of course, one connecting column 212 can be arranged between two adjacent first tube grooves 211, or multiple connecting columns 212 can be distributed at intervals along the circumference of the base 210, both of which can meet the requirements of positioning and fixed connection between the base 210 and the cover 220.

[0050] In addition, the base 210 and the cover 220 may be fixed by buckles or by other fasteners.

[0051] Reference Figures 3 to 5 In some embodiments of the first aspect of the present utility model, considering that the refrigerant flowing in the main pipe 320 is large and the impact vibration is large, the base 210 is provided with a first positioning groove 213, and the first positioning groove 213 is used to limit the end of the main pipe 320 away from the second pipe joint 321, to help fix the main pipe 320 and improve the operation stability of the branch box. Correspondingly, the cover 220 is provided with a second positioning groove 223, and the second positioning groove 223 corresponds to the first positioning groove 213 one by one, and the two cooperate to limit the main pipe 320; in addition, it is also possible to limit the main pipe 320 only by relying on the first positioning groove 213, the depth of the first positioning groove 213 can accommodate the main pipe 320, and the cover 220 covers the opening of the first positioning groove 213, and it is also possible that the cover 220 is provided with a pressing portion extending into the first positioning groove 213 to help fix the main pipe 320.

[0052] It is understandable that, considering that the inner tank 200 needs to have a heat-insulating function to reduce the loss of coldness of the refrigerant, it tends to be made of foam plastic material, but the foam plastic material is not conducive to the setting of structures such as the fixing mechanism 230, the first tube groove 211 and the first positioning groove 213. Therefore, in some embodiments of the first aspect of the utility model, the base 210 includes a bottom plate 240 and a bracket 250, wherein the bottom plate 240 and the cover 220 are both made of foam plastic and have better heat-insulating performance, and the bracket 250 is an injection molded part, which is convenient for molding structures such as the fixing mechanism 230, the first tube groove 211 and the first positioning groove 213. The bracket 250 and the bottom plate 240 are connected by bonding, and the shell 100 and the bracket 250 are fixedly connected, for example, by fasteners, so that the base 210 is fixed to the shell 100.

[0053] Reference Figures 1 to 3 In some embodiments of the first aspect of the utility model, the manifold 310 and the main pipe 320 of the pipeline assembly 300 are arranged on the same side of the shell 100. The shell 100 includes a first side plate 110. The first side plate 110 is provided with a plurality of through holes. The plurality of manifolds 310 and the two main pipes 320 are respectively inserted into the respective through holes. The manifolds 310 and the main pipes 320 are arranged on the same side, which is conducive to simplifying the structure of the shell 100 and facilitating assembly. In addition, there is a risk of refrigerant leakage at the connection between the first pipe joint 311 and the second pipe joint 321. Some refrigerants are flammable, and a sensor needs to be provided to detect the leaked refrigerant. Since the manifold 310 and the main pipe 320 are arranged on the same side of the shell 100, as shown in FIG. Figure 1 As shown, an air guide hood 120 can be set on the outer wall of the shell 100, and the first pipe joint 311 and the second pipe joint 321 are both located inside the air guide hood 120. The air guide hood 120 is used to guide the leaked refrigerant to the sensor, which simplifies the structure, reduces the number of parts, and is conducive to improving the assembly speed.

[0054] The embodiment of the second aspect of the utility model proposes a multi-split air conditioner, which includes a branch box of the embodiment of the first aspect, and the branch box includes a shell 100 and a pipeline assembly 300, wherein the shell 100 is the main body of the branch box and serves as an installation base. The shell 100 is usually assembled from a plurality of sheet metal forming panels, and has sufficient structural strength and rigidity, and each panel can be disassembled, for example, each panel is fixedly connected by screws, and one or more panels can be disassembled by removing the screws. An inner liner 200 is arranged inside the shell 100, and the inner liner 200 includes a base 210 and a cover 220, and an installation cavity 201 is formed between the base 210 and the cover 220 for installing the pipeline assembly 300. The main function of the inner liner 200 is to limit the pipeline assembly 300 and insulate, thereby reducing the loss of cold of the refrigerant.

[0055] The pipe assembly 300 generally includes a plurality of manifolds 310 and two main pipes 320. The two main pipes 320 are divided into an input pipe and an output pipe. The input pipe is connected to the plurality of manifolds 310 at the same time, and the output pipe is connected to the plurality of manifolds 310 at the same time, so as to divert the refrigerant and supply it to the plurality of indoor units of the multi-split air conditioner. A first pipe joint 311 is provided at the end of the manifold 310, and a second pipe joint 321 is provided at the end of the main pipe 320. The first pipe joint 311 and the second pipe joint 321 are arranged outside the housing 100. The first pipe joint 311 can be used to connect the pipes of the indoor unit for easy installation, and the second pipe joint 321 can be used to connect the pipes of the outdoor unit for easy assembly.

[0056] Reference Figure 2 It is understandable that the branch box is usually suspended from the ceiling. During the installation process and when repairing the branch box, it is necessary to remove one of the panels of the shell 100 and the cover 220, and then check the pipe assembly 300. It can be seen that during the installation and maintenance operations, the pipe assembly 300 is in a suspended state. Since the existing inner tank does not fix the pipe assembly 300, it is difficult to operate. The operator needs to additionally support the pipe assembly 300, and the pipe assembly 300 is prone to tilting and shifting, resulting in deformation of the pipe assembly 300. In particular, the capillary of the pipe assembly 300 is easily pulled and deformed, resulting in desoldering of the interface, causing leakage of the pipe assembly 300, affecting the performance and reliability of the branch box.

[0057] Therefore, in some embodiments of the present invention, a fixing mechanism 230 is provided at the base 210 of the inner tank 200, and the number of the fixing mechanisms 230 is at least two, at least one fixing mechanism 230 is used to fix the manifold 310, and at least one fixing mechanism 230 is used to fix the main pipe 320, so that the connection between the pipeline assembly 300 and the base 210 is stable.

[0058] The branch box fixes at least one manifold 310 and at least one main pipe 320 of the pipeline assembly 300 by setting at least two fixing mechanisms 230 on the base 210. During the installation and maintenance processes, the pipeline assembly 300 is prevented from being separated from the base 210, the pipeline assembly 300 is stably supported, the operation is facilitated, and the pipeline assembly 300 is prevented from being deformed, which helps to reduce the risk of leakage of the pipeline assembly 300.

[0059] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A branch box, characterized in that: include: A shell body, wherein an inner shell body is provided inside, wherein the inner shell body comprises a base and a surface cover, and an installation cavity is formed between the base and the surface cover; A pipeline assembly is arranged in the installation cavity, the pipeline assembly includes a plurality of manifolds and a plurality of main pipes, the end of the manifold is provided with a first pipe joint, the end of the main pipe is provided with a second pipe joint, and the first pipe joint and the second pipe joint are arranged outside the shell; Wherein, the base is provided with at least two fixing mechanisms, at least one of the manifolds is fixed to one of the fixing mechanisms, and at least one of the main pipes is fixed to another of the fixing mechanisms.

2. The branch box according to claim 1, characterized in that: The fixing mechanism includes a semicircular groove and two clamping plates, the two clamping plates are arranged on both sides of the semicircular groove, and the two clamping plates cooperate to clamp the manifold or the main pipe.

3. The branch box according to claim 2, characterized in that: The opposite side surfaces of the two clamping plates are arranged as arc-shaped surfaces, and the arc-shaped surfaces are arranged concentrically with the semicircular grooves and have the same radius.

4. The branch box according to claim 3, characterized in that: The side surfaces of the two clamping plates which are away from each other are respectively provided with pressing parts, and the pressing parts are used to push the two clamping plates away from each other.

5. The branch box according to any one of claims 1 to 4, characterized in that: The base is provided with a plurality of first pipe grooves, each of which is provided with a manifold or a main pipe, and the surface cover is provided with second pipe grooves, which correspond to the first pipe grooves one by one.

6. The branch box according to claim 5, characterized in that: The base is provided with a connecting column, and the surface cover is provided with a slot matching the connecting column. One connecting column is arranged on both sides of each first tube slot, and one slot is arranged on both sides of each second tube slot.

7. The branch box according to claim 5, characterized in that: The housing includes a first side plate, wherein the first side plate is provided with a plurality of through holes for the manifold and the main pipe to pass through.

8. The branch box according to claim 5, characterized in that: The base is provided with a first positioning groove, the end of the main pipe facing away from the second pipe joint is located in the first positioning groove, and the surface cover is provided with a second positioning groove, and the second positioning groove cooperates with the first positioning groove to define the main pipe.

9. The branch box according to claim 1, characterized in that: The base comprises a bottom plate and a bracket, the bottom plate and the surface cover are made of foam plastics, the bracket is an injection molded part, the bracket and the bottom plate are connected by adhesive bonding, and the fixing mechanism is arranged on the bracket.

10. A multi-split air conditioner, characterized in that: Including the branch box as described in any one of claims 1 to 9.

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