Valve box for air conditioner, refrigerant switching device and heating and ventilation system

Abstract

The utility model discloses a valve box for an air conditioner, a refrigerant switching device and a heating and ventilation system, the valve box for the air conditioner comprises a box body and a partition plate assembly, the partition plate assembly is arranged in the box body and divides the space in the box body into an electric cavity and a pipeline cavity, the electric cavity is configured to contain an electric control assembly, and the pipeline cavity is configured to contain a pipeline. The pipeline cavity is configured to contain a pipeline module provided with an electromagnetic valve body; the partition plate assembly comprises a partition plate and a heat preservation structure, the heat preservation structure is fixed to the partition plate, a wire passing hole communicating with the electrical cavity and the pipeline cavity is formed in the heat preservation structure, and the wire passing hole is configured to allow a conductive wire connecting the electric control assembly and the electromagnetic valve body to penetrate through. The hole wall of the wire passing hole is in sealed contact with the outer wall of the conductive wire, and the heat preservation structure can prevent the partition plate from generating condensation.

Description

Technical Field

[0001] This application relates to the field of sealing technology for HVAC equipment, and in particular to a valve box for air conditioning, a refrigerant switching device, and an HVAC system. Background Technology

[0002] In the relevant technical field, a partition is installed between the piping cavity and the electrical cavity of HVAC equipment to isolate the piping cavity and the electrical cavity. However, there is a certain temperature difference between the refrigerant in the piping cavity and the electrical cavity, which causes condensation to occur on the side of the partition facing the electrical cavity. Utility Model Content

[0003] This application provides an air conditioning valve box, a refrigerant switching device, and a heating, ventilation, and air conditioning system, which can reduce condensation on the partition inside the air conditioning valve box.

[0004] In a first aspect, embodiments of this application provide a valve box for an air conditioner. The valve box includes a box body and a partition assembly. The partition assembly is disposed within the box body and divides the space within the box body into an electrical cavity and a pipeline cavity. The electrical cavity is configured to house an electronic control component, and the pipeline cavity is configured to house a pipeline module equipped with a solenoid valve body. The partition assembly includes a partition and a thermal insulation structure. The thermal insulation structure is fixed to the partition and forms a wire passage hole connecting the electrical cavity and the pipeline cavity. The wire passage hole is configured to allow conductive wires connecting the electronic control component and the solenoid valve body to pass through, and a sealed contact is formed between the wall of the wire passage hole and the outer wall of the conductive wire.

[0005] According to the embodiments of this application, an air conditioning valve box has an insulation structure on a partition between the electrical cavity and the piping cavity. The insulation structure can reduce heat transfer between the electrical cavity and the piping cavity, thereby reducing condensation generated on the side of the partition facing the piping cavity due to the temperature difference between the electrical cavity and the piping cavity. At the same time, the insulation structure has a wire hole for the conductive wire to pass through. The conductive wire passes through the outer surface of the wire hole and makes sealed contact with the hole wall, reducing the probability of condensation generated on the partition facing the piping cavity entering the electrical cavity, thus improving the safety of the air conditioning valve box.

[0006] In some embodiments, the insulation structure includes an insulation element and a sealing element. The insulation element is fixed to the side of the partition facing the pipeline cavity; the sealing element penetrates the partition and the insulation element along the thickness direction of the insulation element and is fixedly connected to the partition and / or the insulation element, and the sealing element has the wire passage hole.

[0007] Based on the above embodiments, after the insulation component is fixed on the side of the partition facing the pipeline cavity, the insulation component can reduce the heat transfer between the electrical cavity and the pipeline cavity, thereby reducing the condensation generated on the side of the partition facing the pipeline cavity due to the temperature difference between the electrical cavity and the pipeline cavity; the sealing component makes a sealing contact with the conductive wire, thereby reducing the probability of condensation generated on the side of the partition facing the pipeline cavity entering the electrical cavity.

[0008] In some embodiments, the insulation element is configured as an insulation sponge layer, the thickness of which is greater than or equal to 15 mm and less than or equal to 25 mm.

[0009] Based on the above embodiments, the insulation component is configured as an insulation sponge layer. In this way, when condensation occurs on the side of the partition facing the pipeline cavity due to the temperature difference between the electrical cavity and the pipeline cavity, the insulation sponge layer can absorb the condensation on the side of the partition facing the pipeline cavity. Moreover, the thickness of the insulation sponge layer is in the range of 15mm to 25mm. The insulation sponge layer has sufficient thickness to reduce the heat exchange between the pipeline cavity and the electrical cavity, and has sufficient volume to fully absorb the condensation generated on the side of the partition facing the pipeline cavity.

[0010] In some embodiments, the seal is configured as a wear-resistant sponge layer with a thickness greater than or equal to 2 mm and less than or equal to 4 mm.

[0011] Based on the above embodiments, configuring the seal as a wear-resistant sponge layer can ensure that the seal has a longer service life and can absorb condensation flowing along the outer surface of the conductive line. The thickness of the wear-resistant sponge layer is in the range of 2mm to 4mm, ensuring that the seal has sufficient volume to generate elastic deformation and sufficient volume to fully absorb condensation flowing along the conductive line.

[0012] In some embodiments, the partition has a first clearance opening, the insulation member has a second clearance opening communicating with the first clearance opening, and the sealing member is located within the first clearance opening and the second clearance opening, and is sealed to the cavity wall of the first clearance opening and / or the second clearance opening.

[0013] Based on the above embodiments, the first clearance opening and the second clearance opening are used to accommodate the sealing element. After the sealing element passes through the first clearance opening and the second clearance opening simultaneously, the wire passage hole provided on the sealing element passes through the partition and the insulation element, realizing the connection between the wire passage hole and the pipeline cavity and the electrical cavity.

[0014] In some embodiments, the partition includes a detachably connected main body and a cover, with a first clearance opening formed between the main body and the cover; the insulation component includes a first insulation part and a second insulation part, with a second clearance opening formed between the first insulation part and the second insulation part, the first insulation part being fixed to the side of the main body facing the pipeline cavity, and the second insulation part being fixed to the side of the cover facing the pipeline cavity.

[0015] Based on the above embodiments, the first heat-insulating part moves with the main body part, and the second heat-insulating part moves with the cover part. The main body part and the cover part are separable, and the sealing element is placed between the main body part and the cover part. Then, the main body part and the cover part are fixedly connected to fix the sealing element.

[0016] In some embodiments of this application, the box body includes a detachably fixed box body portion and a cover portion, the cover portion being fixed to the inner side of the cover portion, and when the box body portion and the cover portion are connected to each other, the cover portion and the main body portion form the first clearance opening.

[0017] Based on the above embodiments, the valve box for air conditioning is easy to disassemble and assemble. The main body and the cover can be connected by connecting the box body and the cover. When it is necessary to repair the electronic control components and / or pipeline modules, the main body and the cover can be separated by disassembling the box body and the cover.

[0018] In some embodiments, the cover portion includes a connecting sub-part and a cover sub-part, the connecting sub-part being detachably fixedly connected to the cover sub-part, the cover sub-part and the main body portion forming the first clearance opening, the second heat insulation portion being fixed to the cover sub-part, and the sealing member being connected to the cover sub-part.

[0019] Based on the above embodiments, after the connecting sub-part is connected to the main body, the cover sub-part and the main body form a first clearance opening.

[0020] In some embodiments, the seal includes a first sealing portion and a second sealing portion, the first sealing portion being fixed to the main body portion and / or the first insulation portion, the second sealing portion being fixed to the cover portion and / or the second insulation portion, and the first sealing portion and the second sealing portion surrounding the wire hole.

[0021] Based on the above embodiments, a conductive wire is placed between the first sealing part and the second sealing part, and then the connecting sub-part and the main body are connected, so that the first sealing part and the second sealing part are pressed against each other to form a sealing contact, the conductive wire is pressed against the first sealing part to form a sealing contact, and the conductive wire is pressed against the second sealing part to form a sealing contact, so as to achieve a sealed connection between the conductive wire and the sealing element, and to achieve a seal between the first sealing element and the second sealing element.

[0022] In some embodiments, the first sealing portion includes a first arc-shaped segment and two first sealing segments, the two first sealing segments being respectively connected to the two ends of the first arc-shaped segment; the second sealing portion includes a second arc-shaped segment and two second sealing segments, the two second sealing segments being respectively connected to the two ends of the second arc-shaped segment; the wire passage hole is formed between the first arc-shaped segment and the second arc-shaped segment; the first sealing segment and the corresponding second sealing segment are pressed against each other to form a sealing contact.

[0023] Based on the above embodiments, the first arc segment and the second arc segment form a wire passage hole. After the cover part and the main body part are connected, the first sealing segment and the corresponding second sealing segment come into contact with each other and squeeze to achieve a sealing contact between the first sealing part and the second sealing part. The first arc segment squeezes against the outer surface of the conductive wire, and the second arc segment squeezes against the outer surface of the conductive wire.

[0024] Secondly, this application provides a refrigerant switching device, which includes an electronic control component, a conductive wire, a pipeline module, and an air conditioning valve box as described above; the electronic control component is installed in the electrical cavity; the pipeline module is provided with an electromagnetic valve body and is installed in the pipeline cavity; the conductive wire is electrically connected to the electronic control component and passes through the wire hole to be electrically connected to the electromagnetic valve body, and the outer wall of the conductive wire passing through the wire hole is in sealed contact with the hole wall of the wire hole.

[0025] Based on the refrigerant switching device in this application embodiment, due to the presence of the aforementioned air conditioning valve box, the condensation generated on the side of the partition facing the pipe cavity is reduced, and the condensation on the side of the partition facing the pipe cavity cannot enter the electrical cavity. Therefore, the cooling switching device in this application embodiment has higher safety.

[0026] Thirdly, embodiments of this application provide a heating, ventilation, and air conditioning (HVAC) system, which includes an outdoor unit, an indoor unit, and a refrigerant switching device as described above. Both the outdoor unit and the indoor unit are connected to the piping of the piping module.

[0027] Based on the HVAC system in this application embodiment, since it has the above-mentioned refrigerant switching device, which has the above-mentioned air conditioning valve box, the HVAC system in this application embodiment has higher safety performance.

[0028] Based on the embodiments of the present application, an air conditioning valve box, refrigerant switching device, and HVAC system are provided with an insulation structure on the partition between the electrical cavity and the piping cavity. The insulation structure can reduce heat transfer between the electrical cavity and the piping cavity, thereby reducing condensation generated on the side of the partition facing the piping cavity due to the temperature difference between the electrical cavity and the piping cavity. At the same time, the insulation structure is provided with a wire-passing hole for conductive wires to pass through. The conductive wire passes through the outer surface of the wire-passing hole and makes sealed contact with the hole wall, reducing the probability of condensation generated on the partition facing the piping cavity entering the electrical cavity, thus improving the safety of the air conditioning valve box. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of an air conditioning valve box in one embodiment of this application.

[0031] Figure 2 This is a partial structural schematic diagram of an air conditioning valve box according to one embodiment of this application;

[0032] Figure 3 for Figure 2 Enlarged schematic diagram of section A in the middle;

[0033] Figure 4 for Figure 2 Enlarged schematic diagram of section A after removing the seals;

[0034] Figure 5 This is a schematic diagram of the partition structure in one embodiment of this application.

[0035] Reference numerals: 10, housing; 11, electrical cavity; 12, piping cavity; 20, partition assembly; 21, partition; 211, main body; 212, cover; 2121, connecting sub-part; 2122, cover sub-part; 213, first clearance opening; 22, insulation structure; 221, insulation component; 2211, second clearance opening; 2212, first insulation part; 2213, second insulation part; 222, sealing component; 2221, wire hole; 2222, first sealing part; 2223, second sealing part. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] In the relevant technical field, a partition is installed between the piping cavity and the electrical cavity of HVAC equipment to isolate the piping cavity and the electrical cavity. However, there is a certain temperature difference between the refrigerant in the piping cavity and the electrical cavity, which causes condensation to occur on the side of the partition facing the electrical cavity.

[0038] To solve the above technical problems, please refer to Figures 1 to 3 As shown, the first aspect of this application proposes an air conditioning valve box that can reduce condensation on the partition 21 inside the air conditioning valve box.

[0039] Please refer to Figures 1 to 3 As shown, the air conditioner valve box includes a box body 10 and a partition assembly 20. The partition assembly 20 is disposed inside the box body 10 and divides the space inside the box body 10 into an electrical cavity 11 and a pipeline cavity 12. The electrical cavity 11 is configured to house an electronic control component, and the pipeline cavity 12 is configured to house a pipeline module equipped with a solenoid valve body.

[0040] In some embodiments of this application, the box body 10 includes a box body portion and a cover portion. The box body portion has a receiving cavity, and a partition assembly 20 is disposed in the receiving cavity to divide the receiving cavity into a first sub-cavity and a second sub-cavity. The surface of the box body portion has a first assembly opening communicating with the first sub-cavity and a second assembly opening communicating with the second sub-cavity. After the cover portion is connected to the box body portion, it covers the first assembly opening and the second assembly opening, and together with the box body portion, it encloses the first sub-cavity to form an electrical cavity 11, and together with the box body portion, it encloses the second sub-cavity to form a pipeline cavity 12. It is understood that the electrical control component can be installed into the electrical cavity 11 through the first assembly opening, and the pipeline module can be installed into the pipeline cavity 12 through the second assembly opening.

[0041] Please refer to Figures 3 to 5 As shown, the partition assembly 20 includes a partition 21 and an insulation structure 22. The insulation structure 22 is fixed to the partition 21 and has a wire passage hole 2221 that connects the electrical cavity 11 and the pipeline cavity 12. The wire passage hole 2221 is configured to allow conductive wires connecting the electronic control components and the solenoid valve body to pass through, and the hole wall of the wire passage hole 2221 forms a sealed contact with the outer wall of the conductive wire.

[0042] The partition 21 is used to support the insulation structure 22. It can be understood that the partition 21 can be integrally formed with the box body through sheet metal processing, or the partition 21 and the box body can be formed separately and then connected, such as by welding, bonding or mechanical connection.

[0043] The wire hole 2221 is used to pass through the conductive wire connecting the electronic control component and the solenoid valve body. The sealing contact between the hole wall of the wire hole 2221 and the outer wall of the conductive wire can reduce the probability that the condensation generated on the side of the partition 21 facing the pipeline cavity 12 will flow along the tiny gap between the outer wall of the conductive wire and the hole wall of the wire hole 2221 to the side of the partition 21 facing the electrical cavity 11, thereby improving the safety of the air conditioning valve box.

[0044] The insulation structure 22 is used to reduce the temperature transfer between the electrical cavity 11 and the pipe cavity 12, and to ensure the sealing between the outer wall of the conductive wire and the through hole 2221. It is understood that the reason for the condensation on both sides of the partition 21 is that the temperature inside the pipe cavity 12 is higher than the temperature inside the electrical cavity 11. When the water vapor inside the pipe cavity 12 encounters the partition 21 with a lower temperature, condensation occurs on the side of the partition 21 facing the pipe cavity 12. The insulation structure 22 reduces the heat transfer between the pipe cavity 12 and the electrical cavity 11, thereby reducing the condensation generated on the side of the partition 21 facing the pipe cavity 12. In addition, the insulation structure 22 is in sealed contact with the outer wall of the conductive wire, thereby reducing the condensation generated on the side of the partition 21 facing the pipe cavity 12 from penetrating along the outer wall of the conductive wire or the hole wall of the through hole 2221 to the side of the partition 21 facing the electrical cavity 11.

[0045] To achieve the heat insulation and sealing functions of the insulation structure 22, please refer to... Figure 5 As shown, in some embodiments of this application, the thermal insulation structure 22 includes a thermal insulation element 221 and a sealing element 222. The thermal insulation element 221 is fixed to the side of the partition 21 facing the pipeline cavity 12 to reduce the temperature transfer between the electrical cavity 11 and the pipeline cavity 12 and to reduce the condensation generated on the side of the partition 21 facing the pipeline cavity 12. The sealing element 222 penetrates the partition 21 and the thermal insulation element 221 along the thickness direction of the thermal insulation element 221 and is fixedly connected to the partition 21 and / or the thermal insulation element 221. The sealing element 222 has a wire passage hole 2221. The sealing element 222 is used to reduce the condensation generated on the side of the partition 21 facing the pipeline cavity 12 from penetrating along the outer wall of the conductive wire or the hole wall of the wire passage hole 2221 to the side of the partition 21 facing the electrical cavity 11.

[0046] In some embodiments of this application, the insulation element 221 is configured as an insulation sponge layer. After the insulation element 221 is configured as an insulation sponge layer, the insulation sponge layer can not only reduce the heat transfer between the electrical cavity 11 and the pipeline cavity 12, but also absorb the condensation generated on the side of the partition 21 facing the pipeline cavity 12. Further, in some embodiments of this application, the thickness of the insulation sponge layer is greater than or equal to 15 mm and less than or equal to 25 mm, for example, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm or 24 mm, etc. Within this range, the insulation sponge layer has sufficient thickness to reduce the heat exchange between the pipeline cavity 12 and the electrical cavity 11, and has sufficient volume to fully absorb the condensation generated on the side of the partition 21 facing the pipeline cavity 12. It can be understood that the greater the temperature difference between the electrical cavity 11 and the pipeline cavity 12, the thicker the insulation sponge layer.

[0047] In some embodiments of this application, the seal 222 is configured as a wear-resistant sponge layer. After the seal 222 is configured as a wear-resistant sponge layer, the seal 222 has a longer service life and can absorb condensation flowing along the outer surface of the conductive line. Furthermore, in some embodiments of this application, the thickness of the wear-resistant sponge layer is in the range of 2mm to 4mm, for example, 2.5mm, 3mm or 3.5mm, etc. Within this range, it is ensured that the seal 222 has sufficient volume to generate elastic deformation and sufficient volume to fully absorb condensation flowing along the conductive line.

[0048] Since the sealing element 222 needs to penetrate the partition 21 and the insulation element 221 along the thickness direction of the insulation element 221, in some embodiments of this application, the partition 21 has a first clearance opening 213, the insulation element 221 has a second clearance opening 2211 communicating with the first clearance opening 213, and the sealing element 222 is located within the first clearance opening 213 and the second clearance opening 2211, and is sealed to the cavity wall of the first clearance opening 213 and / or the second clearance opening 2211. That is, the partition 21 has a first clearance opening 213 for the sealing element 222 to pass through, and the insulation element 221 has a second clearance opening 2211 for the sealing element 222 to pass through. After the seal 222 passes through the partition 21 and the insulation component 221 via the first clearance opening 213 and the second clearance opening 2211, the wire hole 2221 provided on the seal 222 can connect the pipeline cavity 12 and the electrical cavity 11. The seal 222 is sealed to the cavity wall of the first clearance opening 213 and / or the cavity wall of the second clearance opening 2211, ensuring the sealing performance between the seal 222 and the partition 21 and / or the insulation component 221. It can be understood that the seal 222 being connected to both the partition 21 and the insulation component 221 can maximize the sealing performance between the seal 222 and the partition 21 and the insulation component 221.

[0049] For easy assembly of the seal 222 with the partition 21 and the insulation 221, please refer to... Figures 3 to 5 As shown, in some embodiments of this application, the partition 21 includes a detachably connected main body 211 and a cover 212, with a first clearance opening 213 formed between the main body 211 and the cover 212; the corresponding insulation component 221 includes a first insulation part 2212 and a second insulation part 2213, with a second clearance opening 2211 formed between the first insulation part 2212 and the second insulation part 2213, the first insulation part 2212 being fixed to the main body 211 on the side facing the pipe cavity 12, and the second insulation part 2213 being fixed to the cover 212 on the side facing the pipe cavity 12.

[0050] The partition 21 is divided into a main body 211 and a cover 212. Correspondingly, the insulation component 221 is divided into a first insulation component 2212 and a second insulation component 2213. The first insulation component 2212 moves with the main body 211, and the second insulation component 2213 moves with the cover 212. The sealing component 222 is placed between the main body 211 and the cover 212 before connecting the main body 211 and the cover 212. The sealing component 222 is sandwiched between the main body 211 and the cover 212, and the sealing component 222 is sandwiched between the first insulation component 2212 and the second insulation component 2213. In addition, when the sealing component 222 is connected to the partition 21 and / or the insulation component 221 by means of bonding, etc., the partition 21 is divided into a main body 211 and a cover 212 to facilitate the application of adhesive, etc.

[0051] It is understood that the insulation component 221 is divided into a first insulation component 2212 and a second insulation component 2213 corresponding to the main body 211 and the cover 212. After the main body 211 and the cover 212 are connected to each other, the first insulation component 2212 and the second insulation component 2213 abut against each other and completely cover the side of the partition 21 facing the pipeline cavity 12. The insulation component 221 is configured as an insulation sponge layer. In the embodiments of this application, the first insulation component 2212 and the second insulation component 2213 are both insulation sponge layers.

[0052] In some embodiments of this application, the cover portion 212 is fixed to the inner side of the cover portion, and the cover portion 212 and the main body portion 211 form a first clearance opening 213 when the cover portion and the cover portion are connected to each other. This facilitates the disassembly and assembly of the air conditioning valve box. The main body portion 211 and the cover portion 212 can be connected after the cover portion and the cover portion are connected. When it is necessary to repair the electronic control components and / or pipeline modules, the main body portion 211 and the cover portion 212 can be separated by disassembling the cover portion and the cover portion.

[0053] For easy connection between the cover portion 212 and the main body portion 211, please refer to... Figures 3 to 4As shown, in some embodiments of this application, the cover portion 212 includes a connecting sub-part 2121 and a cover sub-part 2122. The connecting sub-part 2121 and the cover sub-part 2122 are detachably fixedly connected. The cover sub-part 2122 and the main body portion 211 form a first clearance opening 213. The second heat insulation portion 2213 is fixed to the cover sub-part 2122. The sealing member 222 is connected to the cover sub-part 2122. Thus, after the connecting sub-part 2121 is connected to the main body portion 211, the cover sub-part 2122 and the main body portion 211 form the first clearance opening 213.

[0054] Furthermore, to facilitate fixing the conductive wires, please refer to... Figure 5 As shown, in some embodiments of this application, the sealing element 222 includes a first sealing part 2222 and a second sealing part 2223. The first sealing part 2222 is fixed to the main body part 211 and / or the first heat insulation part 2212, and the second sealing part 2223 is fixed to the cover part 2122 and / or the second heat insulation part 2213. The first sealing part 2222 and the second sealing part 2223 are arranged to form a wire hole 2221.

[0055] When installing the conductive wire, the conductive wire is placed between the first sealing part 2222 and the second sealing part 2223, and then the connecting part 2121 and the main body part 211 are connected, so that the first sealing part 2222 and the second sealing part 2223 are pressed against each other to form a sealed contact, the conductive wire is pressed against the first sealing part 2222 to form a sealed contact, and the conductive wire is pressed against the second sealing part 2223 to form a sealed contact, so as to achieve a sealed connection between the conductive wire and the sealing member 222, and to achieve a seal between the first sealing member 222 and the second sealing member 222.

[0056] In some embodiments of this application, the first sealing part 2222 includes a first arc-shaped segment and two first sealing segments, which are respectively connected to the two ends of the first arc-shaped segment. The second sealing part 2223 includes a second arc-shaped segment and two second sealing segments, which are respectively connected to the two ends of the second arc-shaped segment. A wire hole 2221 is formed between the first arc-shaped segment and the second arc-shaped segment. The first sealing segment and the corresponding second sealing segment are pressed against each other to form a sealing contact.

[0057] It is understood that the first arc-shaped segment and the second arc-shaped segment form a wire-passing hole 2221. After the cover portion 212 and the main body portion 211 are connected, the first sealing segment and the corresponding second sealing segment contact and compress each other to achieve a sealing contact between the first sealing portion 2222 and the second sealing portion 2223. Furthermore, the first arc-shaped segment compresses against the outer surface of the conductive wire, and the second arc-shaped segment compresses against the outer surface of the conductive wire. Combined with the above-mentioned sealing element 222 being configured as a wear-resistant sponge layer, the first sealing portion 2222 and the second sealing portion 2223 in this embodiment are wear-resistant sponge layers.

[0058] Secondly, this application provides a refrigerant switching device, which includes an electronic control component, a conductive wire, and an air conditioning valve box. The electronic control component is installed in the electrical cavity 11. The pipeline module is provided with an electromagnetic valve body and is installed in the pipeline cavity 12. The conductive wire is electrically connected to the electronic control component and passes through the wire hole 2221 and is electrically connected to the electromagnetic valve body. The outer wall of the conductive wire passing through the wire hole 2221 is in sealed contact with the hole wall of the wire hole 2221.

[0059] Based on the refrigerant switching device in this application embodiment, due to the presence of the aforementioned air conditioning valve box, the condensation generated on the side of the partition 21 facing the pipe cavity 12 is reduced, and the condensation on the side of the partition 21 facing the pipe cavity 12 cannot enter the electrical cavity 11. Therefore, the cooling switching device in this application embodiment has higher safety.

[0060] Thirdly, this application provides a heating, ventilation, and air conditioning (HVAC) system, which includes an outdoor unit, an indoor unit, and a refrigerant switching device. Both the outdoor unit and the indoor unit are connected to the piping of the piping module.

[0061] Indoor units, located inside the building, are responsible for providing cool or warm air to the interior, while outdoor units, located outside the building, are responsible for transferring heat or cold from the interior to the exterior. A refrigerant switching device, located inside the building, facilitates heat exchange between the indoor and outdoor units. It can be understood that there can be multiple indoor units connected to the same outdoor unit via the refrigerant switching device; or, conversely, there can be multiple outdoor units connected to the same indoor unit via the same refrigerant switching device.

[0062] Based on the HVAC system in this application embodiment, since it has the above-mentioned refrigerant switching device, which has the above-mentioned air conditioning valve box, the HVAC system in this application embodiment has higher safety performance.

[0063] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0064] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A valve box for an air conditioner, characterized in that, The system includes a housing and a partition assembly. The partition assembly is disposed within the housing and divides the space within the housing into an electrical cavity and a piping cavity. The electrical cavity is configured to house an electronic control assembly, and the piping cavity is configured to house a piping module equipped with a solenoid valve body. The partition assembly includes: partition; and The insulation structure is fixed to the partition and has a wire passage hole that connects the electrical cavity and the pipeline cavity. The wire passage hole is configured to allow conductive wires connecting the electronic control component and the solenoid valve body to pass through, and the wall of the wire passage hole and the outer wall of the conductive wire form a sealed contact.

2. The valve box for air conditioning as described in claim 1, characterized in that, The thermal insulation structure includes: Insulation component, fixed to the side of the partition facing the pipeline cavity; and A sealing element penetrates the partition and the insulation element along the thickness direction of the insulation element and is fixedly connected to the partition and / or the insulation element, and the sealing element has the wire passage hole.

3. The valve box for air conditioning as described in claim 2, characterized in that, The insulation component is configured as an insulation sponge layer, the thickness of which is greater than or equal to 15mm and less than or equal to 25mm.

4. The valve box for air conditioning as described in claim 2, characterized in that, The sealing element is configured as a wear-resistant sponge layer, the thickness of which is greater than or equal to 2 mm and less than or equal to 4 mm.

5. The valve box for air conditioning as described in claim 2, characterized in that, The partition has a first clearance opening, the insulation component has a second clearance opening communicating with the first clearance opening, and the sealing component is located within the first clearance opening and the second clearance opening, and is sealed to the cavity wall of the first clearance opening and / or the second clearance opening.

6. The valve box for air conditioning as described in claim 5, characterized in that, The partition includes a detachably connected main body and a cover, with a first clearance opening formed between the main body and the cover; the insulation component includes a first insulation part and a second insulation part, with a second clearance opening formed between the first insulation part and the second insulation part, the first insulation part being fixed to the side of the main body facing the pipeline cavity, and the second insulation part being fixed to the side of the cover facing the pipeline cavity.

7. The valve box for air conditioning as described in claim 6, characterized in that, The box body includes a detachable and fixedly connected box body part and a cover part. The cover part is fixed to the inside of the cover part. When the box body part and the cover part are connected to each other, the cover part and the main body part form the first clearance opening.

8. The valve box for air conditioning as described in claim 6, characterized in that, The cover portion includes a connecting sub-part and a cover sub-part. The connecting sub-part is detachably fixedly connected to the cover sub-part. The cover sub-part and the main body portion form the first clearance opening. The second heat insulation portion is fixed to the cover sub-part. The sealing element is connected to the connecting sub-part.

9. The valve box for air conditioning as described in claim 7 or 8, characterized in that, The sealing element includes a first sealing part and a second sealing part. The first sealing part is fixed to the main body and / or the first heat insulation part, and the second sealing part is fixed to the cover part and / or the second heat insulation part. The first sealing part and the second sealing part surround the wire hole.

10. The valve box for air conditioning as described in claim 9, characterized in that, The first sealing part includes a first arc-shaped segment and two first sealing segments, which are respectively connected to the two ends of the first arc-shaped segment. The second sealing part includes a second arc-shaped segment and two second sealing segments, which are respectively connected to the two ends of the second arc-shaped segment. The wire hole is formed between the first arc-shaped segment and the second arc-shaped segment. The first sealing segment and the corresponding second sealing segment are pressed against each other to form a sealing contact.

11. A refrigerant switching device, characterized in that, include: Air conditioning valve box as described in any one of claims 1-10; The electrical control components are installed inside the electrical cavity; The pipeline module is equipped with a solenoid valve body and is installed inside the pipeline cavity; The conductive wire is electrically connected to the electronic control component and passes through the wire hole to be electrically connected to the solenoid valve body. The outer wall of the conductive wire passing through the wire hole is in sealed contact with the wall of the wire hole.

12. A heating, ventilation, and air conditioning system, characterized in that, include: Outdoor unit; Indoor unit; as well as As described in claim 11, the refrigerant switching device, both the outdoor unit and the indoor unit are connected to the piping of the piping module.

Images