An air conditioner

Abstract

The application discloses an air conditioner, and relates to the technical field of air treatment equipment. The air conditioner comprises a casing, a side wall of the casing is provided with a wind passing opening, a fan is arranged in the casing, the fan comprises a volute, a central axis of the volute extends along a height direction of the casing, the volute comprises a first volute part fixedly connected with the casing and a second volute part detachably connected with the first volute part, the second volute part is arranged to be capable of entering and leaving the casing via the wind passing opening, the first volute part and the second volute part are arranged along a circumferential direction of the volute, and a guide structure is arranged in the casing and is arranged to be capable of cooperating with the second volute part so as to guide the second volute part to be in butt joint with the first volute part and to be capable of limiting axial dislocation of the second volute part and the first volute part. The guide structure is additionally arranged, which is favorable for improving the assembly efficiency of the split volute, favorable for preventing axial dislocation, favorable for realizing blind disassembly and blind assembly of the second volute part, and favorable for avoiding the generation of wind resistance due to the step difference at the splicing position of the volute-shaped air duct.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air handling equipment technology, specifically referring to an air conditioner. Background Technology

[0002] Some air conditioners have a split-type casing, allowing a portion to be removed for easy maintenance. However, this removed portion is prone to misalignment during installation, leading to inefficient installation. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an air conditioner that is beneficial to improving the assembly efficiency of a split-type volute.

[0004] This application provides an air conditioner, including: a housing, a fan, and a guide structure; the side wall of the housing is provided with an air passage opening; the fan is disposed inside the housing, the fan includes a volute, the central axis of the volute extends along the height direction of the housing, the volute includes a first volute component fixedly connected to the housing, and a second volute component detachably connected to the first volute component, the second volute component being configured to enter and exit the housing through the air passage opening; the first volute component and the second volute component are arranged circumferentially along the volute; the guide structure is disposed inside the housing, configured to cooperate with the second volute component to guide the second volute component to dock with the first volute component and to limit axial misalignment between the second volute component and the first volute component.

[0005] The air conditioner provided in this application embodiment, by adding a guide structure, is beneficial to improving the assembly efficiency of the split volute, and is beneficial to preventing axial misalignment of the second volute component. This is beneficial to realizing blind disassembly and blind assembly of the second volute component, and is also beneficial to avoiding step differences at the splicing of the volute air duct that would cause wind resistance.

[0006] Based on the above technical solution, the following improvements can be made to this application.

[0007] In an exemplary embodiment, the housing includes a chassis and a cover plate that are spaced apart from each other along the height direction of the housing, and the guide structure includes at least one of a first guide portion and a second guide portion; the first guide portion is configured to guide one end of the second volute member near the chassis to mate with one end of the first volute member near the chassis; the second guide portion is configured to guide one end of the second volute member near the cover plate to mate with one end of the first volute member near the cover plate.

[0008] In an exemplary embodiment, the second volute is located on the side of the first volute closer to the air passage opening; the fan further includes a fan wheel disposed inside the volute and a motor connected to the fan wheel, the first volute being provided with a maintenance port for the fan wheel and the motor to enter and exit the volute, the maintenance port being configured to be exposed after the second volute is removed and to communicate with the air passage opening, so that the fan wheel and the motor can enter and exit the housing along the maintenance port and the air passage opening for maintenance.

[0009] In an exemplary embodiment, the housing is provided with a partition that divides the internal space of the housing into a heat exchange chamber and a fan chamber. The partition has an air vent connecting the fan chamber and the heat exchange chamber. The housing has an air inlet communicating with the fan chamber and an air outlet communicating with the heat exchange chamber. The fan is disposed in the fan chamber, and the volute has an air outlet corresponding to and communicating with the air vent. The air conditioner also includes a heat exchanger disposed in the heat exchange chamber. The first volute is fixedly connected to the chassis, and the motor is detachably connected to the chassis. The heat exchange chamber and the fan chamber are arranged side by side along the length of the housing. The air inlet and the air outlet are disposed on the side wall of the housing and are arranged side by side along the length of the housing, with the air inlet forming the air vent opening.

[0010] In an exemplary embodiment, the volute near the chassis has a first split position and a second split position spaced circumferentially therebetween. The first volute near the chassis and the second volute near the chassis are spliced ​​at the first split position and the second split position. At least one of the splicing lines at the first split position and the second split position includes an inclined segment. A plane passing through the central axis of the volute and extending along the width direction of the housing is designated as a reference surface. The inclined segment is inclined relative to the reference surface, and the distance w1 between the end of the inclined segment near the reference surface and the air inlet is less than the distance w2 between the end of the inclined segment away from the reference surface and the air inlet.

[0011] In an exemplary embodiment, the first volute component includes a first volute body and a first connecting portion connected to the first volute body; the second volute component includes a second volute body and a second connecting portion connected to the second volute body; the first volute body and the second volute body together form a volute-shaped air duct; the first connecting portion and the second connecting portion are detachably connected; the first volute component further includes a first support base and a second support base, the first support base and the second support base are respectively disposed at both circumferential ends of the first volute body and fixedly connected to the chassis; the first support base and the second support base are provided with the first guide portion.

[0012] In an exemplary embodiment, both the first support base and the second support base include a support base plate, a support side plate connected to the support base plate and the first volute body, and a reinforcing wall erected on the support base plate and connected to the support side plate; the support base plate is fixedly connected to the chassis, and the support side plate is provided with ventilation holes; the first guide portion includes a guide inclined edge provided on the reinforcing wall, the guide inclined edge being located at one end of the reinforcing wall near the ventilation opening, and is configured to guide the end of the second volute body near the chassis to move in a direction close to and aligned with the first volute body.

[0013] In an exemplary embodiment, the first volute body has a tongue at one end near the chassis, and the second volute body has a slot at one end near the chassis. The tongue is configured to be inserted into the slot to restrict the movement of the second volute relative to the first volute towards the cover plate. A limiting gap is formed between the end of the reinforcing wall near the cover plate and the first volute body, and the slot wall near the chassis is inserted into the limiting gap.

[0014] In an exemplary embodiment, the first volute body is provided with a sealing portion, and the second volute body is provided with a sealing mating portion. The sealing portion and the sealing mating portion are in a concave-convex fit to seal the mating area between the first volute body and the second volute body. The sealing portion includes a first stepped portion located at one end of the first volute body near the chassis. The first stepped portion has a first protruding edge and a first stepped groove, with the first stepped groove located on the side of the first protruding edge facing the cover plate. The tongue is flush with the inner wall surface of the first volute body and extends towards the second volute body. The direction of the groove protrudes from the first protruding edge; the sealing mating part includes a second stepped part, which is provided at one end of the second volute body near the chassis. The second stepped part has a second protruding edge and a second stepped groove, which is located on the side of the second protruding edge facing the chassis; the first protruding edge is inserted into the second stepped groove, and the second protruding edge is inserted into the first stepped groove and is flush with the inner wall surface of the first volute body; the side wall of the slot protrudes from the first volute body in the direction near the chassis, so that the groove wall of the slot near the chassis can be inserted into the limiting gap.

[0015] In an exemplary embodiment, the volute is provided with a first air inlet and a second air inlet at both axial ends, a first air intake space is provided between the volute and the cover plate to connect the air inlet of the housing and the first air inlet, and a second air intake space is provided between the volute and the chassis to connect the air inlet and the second air inlet; both the first support base and the second support base are provided with ventilation holes that communicate with the air inlet and the second air intake space.

[0016] In an exemplary embodiment, the volute near the cover plate has an air inlet, and the fan further includes a guide ring at the air inlet, the guide ring and the second volute being an integral structure; one of the first volute and the guide ring has a limiting protrusion, and the other has a limiting groove, the limiting protrusion being embedded in the limiting groove; the second guide portion is located at the opening of the limiting groove, configured to guide the limiting protrusion into the limiting groove, so as to guide the end of the second volute near the cover plate to mate with the end of the first volute near the cover plate.

[0017] In an exemplary embodiment, the limiting protrusion is provided on the guide ring, and the limiting groove is provided on the first volute component; the second guide portion includes a guide flange, one end of the guide flange is connected to the end of the slot near the cover plate, and the other end of the guide flange is configured to extend obliquely in a direction close to the second volute component and close to the cover plate.

[0018] In an exemplary embodiment, the first volute component has a first flange and a first flange connected to the first flange at one end near the cover plate. The first flange, the first flange, and the end wall of the first volute component near the cover plate enclose the limiting groove. The limiting protrusion includes a second flange and a second flange. The second flange is connected to the radially outer end of the guide ring. The second flange is connected to the end of the second flange away from the guide ring and is bent relative to the second flange so that the second flange and the second flange enclose a third stepped groove. The second flange is embedded in the limiting groove, and the edge of the end wall of the first volute component near the cover plate is embedded in the third stepped groove and is flush with the plate surface of the guide ring facing away from the cover plate.

[0019] In an exemplary embodiment, the limiting protrusion further includes a supporting chamfer, one end of which is connected to the end of the second flange away from the second flange, and the other end of which is configured to extend obliquely toward the first flange and the first flange.

[0020] In one exemplary embodiment, the supporting oblique edge is provided with a supporting protrusion at one end near the second flange, and the supporting protrusion abuts against the second flange. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram showing that the first volute and the partition are an integral structure provided in some embodiments of this application; Figure 2 for Figure 1 A bottom view of the structure shown; Figure 3 for Figure 1 A top view of the structure shown; Figure 4 for Figure 1 A left-side view of the structure shown; Figure 5 for Figure 1 A front view schematic diagram of the structure shown; Figure 6 A partially enlarged structural schematic diagram of the first volute component provided in some embodiments of this application; Figure 7 A perspective view showing that the second volute and the guide ring are an integral structure provided in some embodiments of this application; Figure 8 for Figure 7 A bottom view of the structure shown; Figure 9 for Figure 8 A top view of the structure shown; Figure 10 This is a partial three-dimensional structural schematic diagram of an air conditioner provided in some embodiments of this application; Figure 11 for Figure 10 A schematic diagram of the left-side structure shown; Figure 12 for Figure 11 Schematic diagram of the cross-sectional structure along the MM direction; Figure 13 for Figure 10 A schematic diagram of the structure shown from below; Figure 14 A partial bottom view of the air conditioner structure provided in some embodiments of this application; Figure 15 for Figure 14 An exploded view of the structure shown; Figure 16 A partial bottom view of the air conditioner structure provided in some embodiments of this application; Figure 17 This is a schematic diagram of the main structure of an air conditioner provided in some embodiments of this application; Figure 18 for Figure 17 The diagram shows a cross-sectional view of the air conditioner along the NN direction. Figure 19 A three-dimensional structural schematic diagram of the second volute and the guide ring provided in some embodiments of this application; Figure 20 A partial cross-sectional view of the volute assembly provided in some embodiments of this application (section lines omitted); Figure 21 A partial three-dimensional structural schematic diagram of a duct assembly provided in some embodiments of this application; Figure 22 for Figure 21 Enlarged structural diagram of the middle Q section; Figure 23 This is another partial perspective structural diagram of the air duct assembly provided in some embodiments of this application; Figure 24 for Figure 23 Enlarged structural diagram of the middle P section; Figure 25 A partial three-dimensional structural schematic diagram of an air conditioner provided in some embodiments of this application; Figure 26 A partial three-dimensional structural schematic diagram of an air conditioner provided for other embodiments of this application.

[0022] The attached diagram lists the components represented by each number as follows: 1. Casing, 11. Chassis, 111. Slide rail, 12. Cover plate, 13. Back plate, 14. Fan cavity, 141. Air inlet, 15. Heat exchange cavity, 151. Air outlet, 16. Air passage opening. 2. Fan, 21. Volute assembly, 211. First volute component, 2110. First volute body, 2111. First protrusion, 2112. Third protrusion, 2113. First support base, 2114. Second support base, 2115. Support base plate, 2116. Support side plate, 2117. Reinforcing wall, 2118. Guide bevel, 2119. Reinforcing plate, 2120. Extension plate, 212. Second volute component, 2121. Second volute body, 2122. Second protrusion, 2123. Fourth protrusion, 2124. Support foot, 2125. Connecting plate, 2126. Support foot, 2127. Sensor mounting part, 213. Guide ring, 2131. First arc segment, 2132. Second arc segment, 2133. Fourth reinforcing rib, 214. Limiting protrusion, 2141. Second flange, 2142. Second flange, 2143. Support bevel 2144 Stop protrusion, 2145 Third step groove, 215 Limiting groove, 2151 First flange, 2152 First flange, 2153 Guide fold, 2161 First reinforcing rib, 2162 Guide reinforcing part, 2163 Connecting reinforcing part, 2164 Radial reinforcing rib, 2165 Connecting reinforcing rib, 2166 Sixth reinforcing rib, 2167 Guide slope, 2171 First protruding edge, 2172 First step groove, 2173 Third protruding edge, 2181 Second protruding edge, 2182 Second step groove, 2183 Sealing groove, 2184 Fourth protruding edge, 2191 Limiting gap, 2192 Tongue, 2193 Slot, 2194 Ventilation hole, 2195 Volute tongue, 2196 Noise reduction protrusion, 2197 Inclined section, 2198 Straight section, 22 Wind wheel, 23 Motor; 3 partition, 31 partition body, 311 air vent, 3121 reinforcing groove, 3122 second reinforcing rib, 3123 third reinforcing rib, 3124 reinforcing block, 313 wire passage, 32 support part, 33 fixing part, 34 positioning groove; 4 heat exchanger, 41 support plate, 411 positioning protrusion; 5. Electrical control box. Detailed Implementation

[0023] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0024] like Figures 14 to 18 As shown in the figure, this application embodiment provides a volute assembly, an air duct assembly, and an air conditioner. The air conditioner includes: a housing 1 and a fan 2.

[0025] Among them, the side wall of the casing 1 is provided with an air vent 16 (such as... Figure 17 (As shown). Fan 2 is housed within casing 1. Fan 2 is a centrifugal fan. Fan 2 includes a volute, the central axis of which extends along the height direction (i.e., vertical direction) of casing 1, as shown. Figure 17As shown, the fan 2 is placed horizontally inside the casing 1, which helps to reduce the height of the casing 1 and thus reduce the space required for installation. Especially for ducted air conditioners, which are suspended in the ceiling, reducing the height of the casing 1 can raise the position of the bottom of the ceiling, thereby reducing the space occupied by the ceiling and optimizing the user experience.

[0026] like Figure 14 , Figure 15 , Figure 21 and Figure 23 As shown, the volute includes a first volute component 211 fixedly connected to the housing 1, and a second volute component 212 detachably connected to the first volute component 211. The second volute component 212 has a sliding portion, and the housing 1 has a sliding engagement portion. The sliding portion is configured to cooperate with the sliding engagement portion, so that the second volute component 212 can slide relative to the housing 1 to a position where it mates with the first volute component 211, and can enter and exit the housing 1 through the air passage opening 16.

[0027] Therefore, during maintenance, the second volute component 212 can be disassembled and removed through the air opening 16 to facilitate inspection of the condition of the impeller 22 and motor 23 inside the volute, which is beneficial for the maintenance of the impeller 22 and motor 23. Furthermore, during the disassembly of the second volute component 212, the cooperation between the sliding part and the sliding mating part allows the second volute component 212 to smoothly reach the air opening 16, helping to avoid interference between the second volute component 212 and components such as the housing 1 and the impeller 22. During the installation of the second volute component 212, the cooperation between the sliding part and the sliding mating part allows the second volute component 212 to accurately reach the docking position with the first volute component 211, helping to prevent misalignment of the second volute component 212, thereby improving the installation efficiency of the split volute and facilitating blind disassembly and blind installation of the second volute component 212.

[0028] Of course, the second volute 212 may not have a sliding part, and the housing 1 may not have a sliding mating part. The alignment of the second volute 212 and the first volute 211 can be achieved by manual operation by the worker.

[0029] In this embodiment, the air conditioner can be the indoor unit of a split-type air conditioner (such as a ducted air conditioner), or a split-type air conditioner including both an indoor unit and an outdoor unit, or an integrated unit. The following example uses a ducted air conditioner for illustration.

[0030] In some exemplary embodiments, such as Figures 10 to 12As shown, the fan 2 also includes a rotor 22 housed within a volute and a motor 23 connected to the rotor 22. The motor 23 drives the rotor 22 to rotate. The first volute component 211 has a maintenance port for the rotor 22 and motor 23 to enter and exit the volute. The maintenance port is positioned so that it is exposed after the second volute component 212 is removed and communicates with the air passage opening 16, allowing the rotor 22 and motor 23 to enter and exit the casing 1 through the maintenance port and the air passage opening 16 for maintenance. In this way, the rotor 22 and motor 23 can also be removed through the maintenance port and the air passage opening 16, which helps to reduce the difficulty of maintaining the rotor 22 and motor 23.

[0031] The first volute component 211 and the second volute component 212 are arranged circumferentially along the volute (therefore, the volute has two splicing lines spaced apart circumferentially along the volute, rather than a complete continuous splicing line), and the second volute component 212 is located on the side of the first volute component 211 closer to the air passage opening 16. This helps to reduce the distance between the second volute component 212 and the air passage opening 16, thereby reducing the sliding range of the second volute component 212; on the other hand, it makes it easier for the inspection port to face the air passage opening 16, providing a smooth passage for the impeller 22 and the motor 23 to enter and exit the housing 1 in a straight line, thereby reducing the difficulty of disassembling and assembling the impeller 22 and the motor 23.

[0032] In some exemplary embodiments, the air conditioner further includes a guide structure disposed within the housing 1, configured to cooperate with the second volute component 212 to guide the second volute component 212 to mate with the first volute component 211 and to limit axial misalignment between the second volute component 212 and the first volute component 211. The guide structure improves the assembly efficiency of the split volute, prevents axial misalignment of the second volute component 212, facilitates blind disassembly and assembly of the second volute component 212, and helps avoid step differences at the joints of the volute duct, thus preventing air resistance.

[0033] In some exemplary embodiments, such as Figures 14 to 16 As shown, a partition 3 is provided inside the casing 1, which divides the internal space of the casing 1 into a heat exchange chamber 15 and a fan chamber 14. The partition 3 is provided with an air vent 311 connecting the fan chamber 14 and the heat exchange chamber 15 (e.g., Figure 4 (As shown). The housing 1 is provided with an air inlet 141 communicating with the fan chamber 14 and an air outlet 151 communicating with the heat exchange chamber 15, as shown. Figure 17 As shown. The fan 2 is located inside the fan chamber 14, and the volute has an air outlet that corresponds to and communicates with the air outlet 311. The air conditioner also includes a heat exchanger 4 located inside the heat exchange chamber 15.

[0034] like Figures 14 to 18As shown, the housing 1 includes a chassis 11 and a cover plate 12 that are spaced apart from each other along the height direction of the housing 1. The first volute 211 is fixedly connected to the chassis 11, and the motor 23 is detachably connected to the chassis 11.

[0035] like Figure 16 and Figure 17 As shown, the heat exchange chamber 15 and the fan chamber 14 are arranged side by side along the length of the casing 1. The air inlet 141 and the air outlet 151 are located on the side wall of the casing 1 and are arranged side by side along the length of the casing 1. The air inlet 141 forms an air passage opening 16.

[0036] With the air outlet 151 oriented forward, the side wall of the housing 1 with the air inlet 141 and the air outlet 151 is the front side wall. The length of the housing 1 is the left-right direction, the width of the housing 1 is the front-back direction, and the height of the housing 1 is the up-down direction. During operation, the airflow enters the housing 1 through the air inlet 141 at the front end and exits through the air outlet 151 at the front end, thus achieving front return and front exhaust. This allows the ducted air conditioner to avoid openings in the bottom wall of the ceiling, improving the aesthetics of the interior decoration.

[0037] A continuous, elongated opening can be installed on the front panel of the ceiling, at least covering the air inlet 141 and the air outlet 151, to meet the return air, air supply, and maintenance needs of the ducted air conditioner, while also being aesthetically pleasing. Alternatively, separate openings can be made for the air inlet 141 and the air outlet 151 on the front panel of the ceiling. Grilles can be installed at the openings on the front panel of the ceiling to further enhance aesthetics.

[0038] The volute is designed as a detachable structure. When the second volute component 212 is removed through the air inlet 141, the first volute component 211 is exposed through the inspection port. The impeller 22 and motor 23 can be removed through the inspection port and air inlet 141. After maintenance, they can be reinstalled through the air inlet 141 and inspection port, and then the second volute component 212 can be installed. This allows the fan 2 to be maintained through the air inlet 141. Therefore, when the fan 2 needs maintenance, the grille at the ceiling opening can be removed, and the fan 2 can be maintained through the air inlet 141, enabling front-end maintenance of the fan 2 without damaging the ceiling, thus reducing the maintenance cost of the ducted air conditioning unit.

[0039] During the assembly process before the ducted air conditioner leaves the factory, the chassis 11 is at the bottom and the cover plate 12 is at the top. The cover plate 12 is only put on after the internal structure, such as the fan 2, heat exchanger 4, and water tray, is installed. However, in the installation scenario after leaving the factory, the chassis 11 is on top and the cover plate 12 is at the bottom. The up and down orientation in the attached diagram of the instruction manual is based on the state in the installation scenario.

[0040] Of course, the air inlet doesn't have to be an air passage opening. For example, the air passage opening might have a removable maintenance panel, which can be removed for maintenance. In this case, the air inlet can be located in other parts of the casing (such as the back panel, cover, left side panel, right side panel, etc.). The air outlet can also be located in other parts of the casing (such as the cover, left side panel, right side panel, etc.). The air inlet and outlet don't have to be arranged side-by-side along the length of the casing, and the fan chamber and heat exchange chamber don't have to be arranged side-by-side along the length of the casing.

[0041] In some exemplary embodiments, the chassis 11 is provided with a sliding fit portion. In this way, during the assembly process before leaving the factory, the second volute component 212 can quickly reach the set installation position through the sliding fit with the chassis 11, accurately dock with the first volute component 211, and quickly complete the assembly process.

[0042] Furthermore, since an air inlet (i.e., the first air inlet hereinafter referred to as the first air inlet) needs to be provided at least at one end of the volute facing the cover plate 12, an air intake space (i.e., the first air intake space hereinafter referred to as the first air intake space) is usually required between the volute and the cover plate 12. Providing a sliding fit part on the chassis 11 can also prevent the sliding part and the sliding fit part from occupying the space of the first air intake space, and facilitate smooth airflow through the first space.

[0043] In some exemplary embodiments, the volute has a first air inlet and a second air inlet at both axial ends. A first air intake space is provided between the volute and the cover plate 12, connecting the air inlet 141 and the first air inlet. A second air intake space is provided between the volute and the chassis 11, connecting the air inlet 141 and the second air inlet. Therefore, the ducted air conditioner can draw air from both sides, which is beneficial to increasing the air intake volume.

[0044] When the volute has only a first air inlet and no second air inlet, the fan 2 draws air from one side only, and the ducted air conditioner also draws air from one side only.

[0045] In some exemplary embodiments, the sliding portion includes a support foot 2124 (e.g., Figure 7 As shown), the sliding fit includes a groove 111 (as shown). Figure 14 and Figure 15 As shown, the support foot 2124 is slidably inserted into the slide groove 111. The cooperation between the support foot 2124 and the slide groove 111 can also provide a limiting support for the second volute 212, which helps to prevent the second volute 212 from axially shifting towards the slide groove 111.

[0046] Of course, the sliding part and the sliding mating part are not limited to the mating form of the support foot and the slide groove. For example, the sliding part can be a slide groove and the sliding mating part can be a slide rail; or both the sliding part and the sliding mating part can be slide rails.

[0047] In some exemplary embodiments, such as Figure 7As shown, the support foot 2124 includes a connecting plate 2125 and a foot 2126. The connecting plate 2125 protrudes from the outer side wall of the second volute component 212. One end of the foot 2126 is connected to the connecting plate 2125, and the other end of the foot 2126 extends towards the slide groove 111 and is slidably inserted into the slide groove 111. This helps to reduce the occupancy of the support foot 2124 in the second air intake space and improves the air intake volume of the second air intake space. The foot 2126 can extend along the axial direction of the volute or extend obliquely relative to the axial direction of the volute.

[0048] In some exemplary embodiments, the guide structure includes at least one of a first guide portion and a second guide portion.

[0049] The first guide section is configured to guide the end of the second volute 212 near the chassis 11 to mate with the end of the first volute 211 near the chassis 11, which can effectively prevent axial misalignment at the splicing point of the end of the volute near the chassis 11.

[0050] The second guide section is configured to guide the end of the second volute 212 near the cover plate 12 to mate with the end of the first volute 211 near the cover plate 12, which can effectively prevent axial misalignment at the splicing point of the end of the volute near the cover plate 12.

[0051] In some exemplary embodiments, the first volute component 211 includes a first volute body 2110 (e.g., Figure 1 (as shown) and a first connecting portion connected to the first volute body 2110. The second volute component 212 includes a second volute body 2121 (as shown) and a first connecting portion connected to the first volute body 2110. Figure 7 (as shown) and a second connecting part connected to the second volute body 2121. The first volute body 2110 and the second volute body 2121 enclose a volute-shaped air duct. The first connecting part and the second connecting part are detachably connected to realize the detachable connection between the first volute component 211 and the second volute component 212.

[0052] The second connecting part and the first connecting part can be detachably connected by means of fasteners, snap-fit, plug-in, etc.

[0053] In some exemplary embodiments, the first connecting portion includes a first protrusion 2111 located between the first volute body 2110 and the partition 3 (e.g., Figure 1 and Figure 5 As shown), the second connecting portion includes a second protrusion 2122 corresponding to the first protrusion 2111 (as shown). Figure 7 As shown), the first protrusion 2111 and the second protrusion 2122 are detachably connected. The number of first protrusions 2111 can be, but is not limited to, two (for example, one, three or more). The two first protrusions 2111 are arranged at intervals along the axial direction of the volute, as shown. Figure 5As shown, two first protrusions 2111 and two second protrusions 2122 correspond one-to-one and are connected. The first protrusions 2111 and the second protrusions 2122 can be detachably connected by, but not limited to, fasteners, snap-fits, plug-ins, etc.

[0054] The first connecting portion also includes a third protrusion 2112 located at the end of the first volute body 2110 away from the partition 3 (e.g., Figure 1 and Figure 5 As shown), the second connecting portion also includes a fourth protrusion 2123 (as shown) corresponding to the third protrusion 2112. Figure 7 As shown), the third protrusion 2112 and the fourth protrusion 2123 are detachably connected. The number of third protrusions 2112 can be, but is not limited to, two (for example, one, three or more), as shown. Figure 5 As shown, two third protrusions 2112 are arranged at intervals along the axial direction of the volute. The two third protrusions 2112 correspond one-to-one with the two fourth protrusions 2123 and are connected. The third protrusions 2112 and the fourth protrusions 2123 can be detachably connected by means of, but not limited to, fasteners, snap-fits, or plug-ins.

[0055] In some exemplary embodiments, the second connection portion includes a connecting plate 2125 (e.g., Figure 7 As shown), the support foot 2124 also has the function of connecting the first volute 211. The connecting plate 2125 can be integrated with the second protrusion 2122 / fourth protrusion 2123, which helps to reduce the number of the second protrusion 2122 / fourth protrusion 2123, thereby simplifying the structure of the second volute 212 and reducing the wind resistance caused by the outward protrusion structure of the second volute 212 blocking the airflow.

[0056] For example, the second connecting part is connected to the first connecting part by a fastener (such as a screw), and the connecting plate 2125 is provided with fastener mounting holes. There are two support feet 2124, one of which uses the connecting plate 2125 as a second protrusion 2122, and the other of which uses the connecting plate 2125 as a fourth protrusion 2123.

[0057] In some exemplary embodiments, such as Figure 14 and Figure 15 As shown, the slide 111 extends along the width direction (i.e., the front-to-back direction) of the housing 1, so the second volute 212 can enter and exit the housing 1 along the front-to-back direction, making operation more convenient.

[0058] In some exemplary embodiments, such as Figure 7 As shown, there are multiple support feet 2124, which are spaced apart circumferentially along the second volute member 212. There is at least one slide groove 111 (e.g., Figure 14 and Figure 15 As shown, at least one support foot 2124 engages with the slide groove 111 to ensure that the second volute 212 can slide in and out of the housing 1 along a set trajectory. The other support feet 2124 can limit and support the second volute 212 and connect to the first volute 211.

[0059] In some exemplary embodiments, the end of the volute near the cover plate 12 has a third split position and a fourth split position spaced circumferentially thereon (see reference). Figure 8 As shown), the first volute 211 near the cover plate 12 and the second volute 212 near the cover plate 12 are spliced ​​at the third split position and the fourth split position.

[0060] The distance between the third split position and the partition 3 is less than the distance between the fourth split position and the partition 3, and the distance between the third split position and the air inlet 141 is less than the distance between the fourth split position and the air inlet 141. The circumferential angle between the third split position and the fourth split position is greater than 180°.

[0061] Compared to the scheme where the distance between the third split position and the air inlet 141 is equal to the distance between the fourth split position and the air inlet 141, this scheme can make the opening area of ​​the maintenance port exposed by the first volute 211 larger, which is conducive to further reducing the maintenance difficulty of the fan 2.

[0062] In some exemplary embodiments, the end of the volute near the chassis 11 has a first split position and a second split position spaced circumferentially therebetween (see reference). Figure 9 As shown), the first volute component 211, near one end of the chassis 11, and the second volute component 212, near one end of the chassis 11, are joined at a first split position and a second split position. At least one of the joint lines at the first split position and the joint lines at the second split position includes an inclined segment 2197 (see reference). Figure 9 and Figure 18 (As shown).

[0063] The plane passing through the central axis of the volute and extending along the width direction of housing 1 is denoted as the reference plane (e.g., ...). Figure 9 and Figure 18 As shown), the inclined section 2197 is inclined relative to the reference surface, and the distance w1 between the end of the inclined section 2197 closer to the reference surface and the air inlet 141 is smaller than the distance w2 between the end of the inclined section 2197 farther from the reference surface and the air inlet 141. Figure 18 As shown.

[0064] During the research and development process, the inventors of this application discovered that since the diameter of the impeller 22 is approximately equal to (or even slightly smaller than) the diameter of the opening at the end of the volute facing the chassis 11 (i.e., the diameter of the second air inlet), if the second volute component 212 is not slidably fitted with the housing 1 during installation, but is instead directly dragged by the operator and moved by hand towards the vicinity of the first volute component 211, and then moved towards the chassis 11 to align the second volute component 212 with the first volute component 211, there may be a situation where the end of the second volute component 212 near the chassis 11 and the impeller 22 are not misaligned in the height direction and / or length direction of the housing 1 during installation. This could lead to the end of the second volute component 212 near the chassis 11 colliding with the impeller 22.

[0065] Compared to the design where the splicing line at the first and second split positions is a straight section passing through the inclined section 2197 away from the air inlet 141 and perpendicular to the reference plane, this design, by setting the inclined section 2197, effectively cuts off a portion of the radially inward part of the second volute 212, causing an obtuse-angled notch to be formed at the end of the second volute 212 near the chassis 11. This effectively increases the opening size of the end of the second volute 212 facing the impeller 22, allowing the second volute 212 to effectively avoid collisions with the impeller 22 during installation.

[0066] The end of the second volute 212 near the cover plate 12 has an axial gap with the impeller 22. When the second volute 212 moves to its limit position towards the chassis 11, the axial gap still exists. Therefore, the end of the second volute 212 near the cover plate 12 will not contact the impeller 22 during installation. Therefore, the splicing line at the third split position and the splicing line at the fourth split position do not need to be provided with the above-mentioned inclined section 2197.

[0067] In some exemplary embodiments, the splicing line at the first split position and the splicing line at the second split position further include a straight section 2198 connected to the inclined section 2197 (e.g., Figure 9 and Figure 18 As shown), the straight section 2198 is perpendicular to the reference plane. The straight section 2198 can act as a stop and limit, which helps to prevent misalignment between the second volute component 212 and the first volute component 211.

[0068] In some exemplary embodiments, such as Figure 5As shown, the first volute component 211 also includes a first support base 2113 and a second support base 2114. The first support base 2113 and the second support base 2114 are respectively disposed at both ends of the circumferential direction of the first volute body 2110 and are fixedly connected to the chassis 11. This achieves a fixed connection between the volute and the housing 1, and allows a second air intake space to be formed between the volute and the chassis 11.

[0069] In some exemplary embodiments, the first support base 2113 and the second support base 2114 are provided with a first guide portion. The first guide portion is configured to guide the end of the second volute 212 near the chassis 11 to mate with the end of the first volute 211 near the chassis 11, and can limit the misalignment of the first volute body 2110 and the second volute body 2121 in the axial direction of the volute, thereby improving the installation efficiency of the second volute 212 and facilitating the blind disassembly and blind installation of the second volute 212.

[0070] In some exemplary embodiments, the first support 2113 and the second support 2114 are also provided with ventilation holes 2194 (e.g., Figure 1 and Figure 5 As shown), the ventilation hole 2194 can connect the air inlet 141 and the second air intake space, so that the airflow entering the housing 1 through the air inlet 141 can flow through the ventilation hole 2194 to the rear side of the first support 2113 and the second support 2114. This helps to increase the air intake volume of the part of the second air inlet located behind the first support 2113 and the second support 2114, so that the volute can draw in air evenly.

[0071] In some exemplary embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, both the first support base 2113 and the second support base 2114 include a support base plate 2115, a support side plate 2116 connected to the support base plate 2115 and the first volute body 2110, and a reinforcing wall 2117 erected on the support base plate 2115 and connected to the support side plate 2116; the support base plate 2115 is fixedly connected to the chassis 11, and the support side plate 2116 is provided with ventilation holes 2194.

[0072] The supporting base plate 2115 may be provided with fastener mounting holes and other connecting structures for fixed connection with the chassis 11. The reinforcing wall 2117 is connected to the supporting base plate 2115 and the supporting side plate 2116 to form a structure similar to a triangular reinforcing rib, which can improve the strength of the first support 2113 / second support 2114 and help prevent deformation or breakage of the first support 2113 / second support 2114.

[0073] The first guide section includes a guide inclined side 2118 disposed on the reinforcing wall 2117 (e.g., Figure 1As shown), the guide bevel 2118 is located at one end of the reinforcing wall 2117 near the air inlet 141. It is configured to guide the end of the second volute body 2121 near the chassis 11 to move in a direction close to and aligned with the first volute body 2110, thereby playing a better guiding role and improving the assembly efficiency of the second volute part 212.

[0074] In some exemplary embodiments, the first volute body 2110 is provided with a tongue 2192 (e.g., ...) at one end near the chassis 11. Figure 1 and Figure 6 As shown), the second volute body 2121 has a slot 2193 at one end near the chassis 11 (as shown). Figure 9 , Figure 19 and Figure 22 As shown), the tongue 2192 is configured to be inserted into the slot 2193, as follows. Figure 20 and Figure 22 As shown, the movement of the second volute component 212 relative to the first volute component 211 towards the cover plate 12 is restricted, which helps to prevent axial misalignment between the second volute body 2121 and the first volute body 2110, thereby helping to avoid step differences in the volute air duct at the splice point and the resulting wind resistance.

[0075] Similarly, a tongue 2192 can also be provided at the end of the first volute body 2110 near the cover plate 12 (e.g. Figure 1 As shown), the second volute body 2121 has a slot 2193 at one end near the chassis 11 (as shown). Figure 9 As shown), the tongue 2192 is configured to be inserted into the slot 2193 to restrict the movement of the second volute 212 relative to the first volute 211 along the axial direction of the volute (towards the cover plate 12 or towards the chassis 11). This helps to prevent axial misalignment between the second volute body 2121 and the first volute body 2110, thereby helping to avoid step differences in the volute air duct at the splice point and the resulting wind resistance.

[0076] In some exemplary embodiments, a limiting gap 2191 is formed between the end of the reinforcing wall 2117 near the cover plate 12 and the first volute body 2110 (e.g., Figure 20 As shown), slot 2193 is inserted into the limiting gap 2191 near the groove wall of chassis 11, as... Figure 20 As shown in section O. In this way, the first volute body 2110 and the second volute body 2121 form a cross-limiting and interlocking structure at the splicing point near the chassis 11. This is beneficial to improving the splicing reliability of the first volute body 2110 and the second volute body 2121, and to preventing axial misalignment between the second volute body 2121 and the first volute body 2110. This helps to avoid the generation of step differences in the volute air duct at the splicing point, which would cause wind resistance.

[0077] The portion of the second volute body 2121 without the slot 2193 does not need to be inserted into the limiting gap 2191. The reinforcing wall 2117 is located on the side of the second volute body 2121 away from the cover plate 12, and is configured to abut against the second volute body 2121 to restrict the movement of the second volute component 212 relative to the first volute component 211 towards the chassis 11, and also helps to prevent axial misalignment between the second volute body 2121 and the first volute body 2110.

[0078] In some exemplary embodiments, the first volute body 2110 is provided with a sealing part, and the second volute body 2121 is provided with a sealing mating part. The sealing part and the sealing mating part are in concave-convex fit to make the joint between the first volute body 2110 and the second volute body 2121 seal and prevent air leakage at the joint between the first volute body 2110 and the second volute body 2121.

[0079] In some exemplary embodiments, the sealing portion includes a first stepped portion, which is disposed at one end of the first volute body 2110 near the chassis 11. The first stepped portion has a first protruding edge 2171 and a first stepped groove 2172, such as... Figure 6 As shown, the first stepped groove 2172 is located on the side of the first protruding edge 2171 facing the cover plate 12. The tongue 2192 is flush with the inner wall surface of the first volute body 2110 and protrudes from the first protruding edge 2171 in a direction close to the second volute body 2121, as shown. Figure 6 As shown.

[0080] The sealing mating part includes a second stepped portion, which is located at one end of the second volute body 2121 near the chassis 11. The second stepped portion has a second protruding edge 2181 and a second stepped groove 2182, such as... Figure 20 As shown, the second step groove 2182 is located on the side of the second protrusion 2181 facing the chassis 11.

[0081] like Figure 22 As shown, the first protruding edge 2171 is inserted into the second stepped groove 2182, and may or may not be flush with the outer wall surface of the second volute body 2121. The second protruding edge 2181 is inserted into the first stepped groove 2172 and is flush with the inner wall surface of the first volute body 2110 to avoid step differences in the volute duct at the joint, which would cause wind resistance. Furthermore, the first stepped portion and the second stepped portion form a cross-limiting and interlocking structure, which helps to improve the sealing reliability of the first volute body 2110 and the second volute body 2121 and helps to prevent air leakage.

[0082] like Figure 20As shown, the sidewall of slot 2193 protrudes from the first volute body 2110 towards the chassis 11, so that the slot wall of slot 2193 near the chassis 11 can be inserted into the limiting gap 2191. This avoids the second volute body 2121 being too thin at the location of slot 2193, resulting in insufficient strength, and can form a limiting fit with the limiting gap 2191 to improve the splicing reliability of the first volute body 2110 and the second volute body 2121.

[0083] like Figure 22 As shown, a fourth protruding edge 2184 can also be provided at the end of the second volute body 2121 facing the chassis 11. The fourth protruding edge 2184 can be supported on the end of the reinforcing wall 2117 facing the cover plate 12, which can further prevent the second volute part 212 from being axially misaligned with the first volute part 211.

[0084] In some exemplary embodiments, the sealing portion further includes third protruding edges 2173 disposed at both circumferential ends of the first volute body 2110, such as... Figure 6 As shown. The sealing mating part also includes sealing grooves 2183 provided at both circumferential ends of the second volute body 2121, as shown. Figure 19 As shown, the third protrusion 2173 is inserted into the sealing groove 2183. In this way, the joint between the first volute body 2110 and the second volute body 2121 is effectively sealed, which helps to improve the sealing reliability of the volute duct.

[0085] like Figure 6 As shown, the third protrusion 2173 is integrated with the first protrusion 2171, making the structure of the first volute 211 more regular and easier to process and form.

[0086] In some exemplary embodiments, such as Figure 1 As shown, the reinforcing wall 2117 protrudes from the second volute body 2121 in a direction close to the second volute body 2121, which helps to increase the length of the guide bevel 2118 and improve the guiding effect on the second volute component 212.

[0087] In some exemplary embodiments, the volute near the end of the cover plate 12 (which can be referred to as the axial end of the volute) is provided with an air inlet (i.e., the aforementioned first air inlet). The fan 2 also includes a guide ring 213 disposed at the air inlet. The guide ring 213 and the second volute component 212 are integrally structured, such as... Figure 7As shown. This eliminates the need for disassembling and assembling the guide ring 213; the second volute component 212 can be directly removed, allowing the guide ring 213 and the second volute component 212 to be taken out together through the air inlet 141. This avoids interference from the guide ring 213 during the disassembly and assembly of the impeller 22 and motor 23, thus reducing the maintenance difficulty of the fan 2. The module consisting of the first volute component 211, the second volute component 212, and the guide ring 213 can be referred to as the volute assembly 21.

[0088] Of course, the guide ring 213 can also be a separate component, detachably connected to the second volute 212 / first volute 211.

[0089] In some exemplary embodiments, one of the first volute 211 and the guide ring 213 is provided with a limiting protrusion 214 (e.g., Figure 8 As shown), the other is provided with a limiting groove 215 (as shown). Figure 1 and Figure 6 As shown, the limiting protrusion 214 is embedded in the limiting groove 215. This allows the guide ring 213 to be well joined with the first volute component 211, preventing air leakage or misalignment at the joint.

[0090] The limiting protrusion 214 can be an arc-shaped protrusion extending circumferentially along the guide ring 213, and correspondingly, the limiting groove 215 is an arc-shaped groove, such as... Figure 6 As shown. Alternatively, the limiting protrusion 214 may also include a plurality of protrusions spaced apart circumferentially along the guide ring 213, and correspondingly, the limiting groove 215 includes a plurality of grooves spaced apart circumferentially along the impeller 22, so that the guide ring 213 and the first volute 211 can be well spliced ​​through the cooperation of the plurality of protrusions and the plurality of grooves.

[0091] In some exemplary embodiments, the limiting protrusion 214 is further provided with a stop protrusion 2144 (e.g., Figure 8 As shown, the stop protrusion 2144 is configured to abut against the groove wall of the limiting groove 215 in the axial direction of the volute. In this way, the stop protrusion 2144 can provide limiting support and reinforcement for the limiting groove 215. When the end of the volute assembly 21 facing the cover plate 12 is squeezed, it helps to prevent the groove wall of the limiting groove 215 facing the cover plate 12 (i.e., the first flange 2152 below) from being concave and deformed, thereby helping to prevent the guide ring 213 from collapsing.

[0092] In some exemplary embodiments, the second guide portion is provided at the opening of the limiting groove 215 and is configured to guide the limiting protrusion 214 into the limiting groove 215 so as to guide the end of the second volute 212 near the cover plate 12 to mate with the end of the first volute 211 near the cover plate 12.

[0093] Since the guide ring 213 is connected to the end of the second volute 212 near the cover plate 12, when the guide ring 213 and the first volute 211 are accurately aligned, it is beneficial to achieve accurate docking between the end of the second volute 212 near the cover plate 12 and the end of the first volute 211 near the cover plate 12.

[0094] In some exemplary embodiments, such as Figure 8 As shown, a limiting protrusion 214 is provided on the guide ring 213. A limiting groove 215 is provided on the first volute component 211 (as shown). Figure 1 and Figure 6 (As shown). The second guide section includes a guide flange 2153 (as shown). Figure 6 and Figure 24 As shown, one end of the guide flange 2153 is connected to the end of the slot near the cover plate 12, and the other end of the guide flange 2153 is configured to extend obliquely towards the second volute member 212 and towards the cover plate 12. The end of the slot near the cover plate 12 is the axial end of the slot away from the internal space of the volute; the direction near the cover plate 12 is the direction away from the internal space of the volute. Therefore, one end of the guide flange 2153 is connected to the axial end of the slot away from the internal space of the volute, and the other end of the guide flange 2153 is configured to extend obliquely towards the second volute member 212 and away from the internal space of the volute.

[0095] The guide flange 2153 is designed to make the opening of the limiting groove 215 a flared structure, such as... Figure 24 As shown, during the process of the second volute 212 approaching the first volute 211, when the limiting protrusion 214 of the guide ring 213 contacts the guide fold 2153, it can slide into the limiting groove 215 along the guide fold 2153, without requiring the limiting protrusion 214 to be precisely aligned with the opening of the limiting groove 215, thus reducing the difficulty of docking the limiting protrusion 214 and the limiting groove 215.

[0096] The guide flange 2153 can be a continuous arc-shaped flange extending along the extension direction of the limiting groove 215 (e.g., Figure 24 (As shown), it can also include multiple arc-shaped folds spaced apart along the extension direction of the limiting groove 215.

[0097] Of course, the limiting protrusion 214 can also be provided on the first volute 211 and the limiting groove 215 can be provided on the guide ring 213. Then the other end of the guide fold 2153 extends obliquely towards the first volute 211 and the cover plate 12.

[0098] In some exemplary embodiments, such as Figure 6 and Figure 24As shown, the first volute 211 has a first flange 2151 and a first flange 2152 connected to the first flange 2151 at one end near the cover plate 12 (i.e., the axial end of the first volute 211). The first flange 2152, the first flange 2151 and the end wall of the first volute 211 near the cover plate 12 enclose a limiting groove 215.

[0099] like Figure 24 As shown, the limiting protrusion 214 includes: a second flange 2141 and a second flange 2142. The second flange 2141 is connected to the radial outer end of the guide ring 213. The second flange 2142 is connected to the end of the second flange 2141 away from the guide ring 213 and is bent relative to the second flange 2141 so that the second flange 2142 and the second flange 2141 enclose a third stepped groove 2145.

[0100] like Figure 24 As shown, the second flange 2142 is embedded in the limiting groove 215, and the first volute 211 is embedded in the third step groove 2145 near the end wall edge of the cover plate 12 (i.e., the end wall edge of the first volute 211 facing the guide ring 213) and is flush with the plate surface of the guide ring 213 facing away from the cover plate 12 (i.e., the plate surface of the guide ring 213 facing the internal space of the volute).

[0101] In this way, the end of the first volute 211 near the cover plate 12 forms a cross-limiting and interlocking structure with the guide ring 213, which helps to improve the splicing reliability of the first volute 211 and the guide ring 213, and helps to prevent the guide ring 213 and the first volute 211 from axial misalignment. This helps to avoid the step difference in the volute air duct at the splicing point, which would generate wind resistance. It can also play a good sealing role and help to prevent air leakage at this point.

[0102] In some exemplary embodiments, such as Figure 24 As shown, the limiting protrusion 214 also includes a supporting inclined side 2143. One end of the supporting inclined side 2143 is connected to the end of the second flange 2142 away from the second flange 2141, and the other end of the supporting inclined side 2143 is configured to extend obliquely in a direction close to the first flange 2151 and the first flange 2152.

[0103] In this way, when the end of the volute assembly 21 facing the cover plate 12 is squeezed, the supporting inclined edge 2143 can play a limiting support role for the first flange 2152, which helps to prevent the first flange 2152 from being concave and deformed, thereby helping to prevent the guide ring 213 from collapsing.

[0104] Furthermore, during the docking process between the guide ring 213 and the first volute component 211, the setting of the supporting inclined side 2143 is equivalent to setting a flared structure at the third step groove 2145 of the guide ring 213, which can also play a guiding role, so that the first volute component 211 can be quickly and smoothly inserted into the third step groove 2145 near the end wall edge of the cover plate 12.

[0105] In some exemplary embodiments, such as Figure 8 As shown, the supporting inclined side 2143 has a supporting protrusion at one end near the second flange 2142, and the supporting protrusion abuts against the second flange 2142. The stop protrusion 2144 includes the supporting protrusion.

[0106] In this way, the supporting bulge can limit and strengthen the first flange 2152. When the end of the volute assembly 21 facing the cover plate 12 is squeezed, it helps to prevent the first flange 2152 from being concave and deformed, thereby helping to prevent the guide ring 213 from collapsing.

[0107] In some exemplary embodiments, such as Figure 8 As shown, there are multiple supporting convex hulls, which are spaced apart along the length of the supporting hypotenuse 2143, which helps to improve the reinforcement effect.

[0108] The shape of the supporting convex hull is not limited; it can be hemispherical or ellipsoidal, cylindrical, frustum-shaped, prism-shaped or frustum-shaped, or a strip or other shape set along the length direction of the second flange 2142.

[0109] Multiple support convex hulls can be divided into multiple groups spaced apart, and each group can include multiple support convex hulls. The spacing between support convex hulls within a group can be smaller than the spacing between support convex hulls between groups, such as... Figure 8 As shown.

[0110] In some exemplary embodiments, such as Figure 2 As shown, the partition 3 includes a partition body 31, a support part 32, and a fixing part 33. The partition body 31 divides the internal space of the housing 1 into a heat exchange chamber 15 and a fan chamber 14. The partition body 31 is provided with an air outlet 311 connecting the fan chamber 14 and the heat exchange chamber 15. The support part 32 and the fixing part 33 are provided on the surface of the partition body 31 facing the heat exchange chamber 15, and are spaced apart along the length of the partition body 31. Figure 2 As shown.

[0111] Heat exchanger 4 is disposed within heat exchange chamber 15, and the length direction of heat exchanger 4 is perpendicular to the length direction of partition body 31. A support plate 41 is provided at one end of heat exchanger 4 near partition body 31, such as... Figure 16 , Figure 18 As shown. The support plate 41 has through holes for the heat exchange tubes of the heat exchanger body 4 to pass through.

[0112] The support plate 41 is located between the support portion 32 and the fixing portion 33, and the end of the support plate 41 closest to the support portion 32 is supported by the support portion 32, such as... Figure 25 and Figure 26 As shown. The end of the support plate 41 near the fixing part 33 is fixed to the fixing part 33.

[0113] In related technologies, the length direction of the heat exchanger 4 is usually consistent with the length direction of the partition plate 3, and both ends of the heat exchanger 4 are usually fixed to the casing 1. However, when the length direction of the heat exchanger 4 is perpendicular to the length direction of the partition plate 3, the fixing method of the heat exchanger 4 needs to be redesigned. This solution provides a support part 32 and a fixing part 33 on the partition plate 3. The support part 32 supports the heat exchanger 4, and the fixing part 33 fixes the heat exchanger 4 to the end of the heat exchanger 4 closest to the partition plate 3, thus achieving fixed installation of the end of the heat exchanger 4 closest to the partition plate 3 and improving the stability of the heat exchanger 4. The end of the heat exchanger 4 furthest from the partition plate 3 can be, but is not limited to, fixed to the casing 1.

[0114] The support portion 32 can be, but is not limited to, a plate-like structure, the width of which is aligned with the length of the heat exchanger 4. The dimensions of the support portion 32 can be adjusted as needed; when it is narrow, it can support only the support plate 41. When the support portion 32 is wide, it can support both the support plate 41 and the ends of the heat exchanger body.

[0115] In some exemplary embodiments, the length direction of the partition body 31 is consistent with the width direction of the casing 1 (i.e., the front-to-back direction, so the length direction of the heat exchanger 4 is the left-to-right direction), so that the heat exchange chamber 15 and the fan chamber 14 are arranged side by side along the length direction of the casing 1.

[0116] In some exemplary embodiments, in the width direction of the housing 1, the heat exchanger 4 is offset from the air vent 311 and located on the side of the air vent 311 near the air outlet 151, and the heat exchanger 4 is inclinedly disposed within the heat exchange chamber 15, such as... Figure 25 and Figure 26 As shown.

[0117] This design facilitates the smooth flow of air through the air vent 311 into the heat exchange chamber 15, allowing it to quickly reach the air outlet 151 after heat exchange in the heat exchanger 4, thereby improving the cooling / heating efficiency of the air conditioner. Furthermore, the inclined design of the heat exchanger 4 increases its width without altering the height of the casing 1, thus increasing its heat exchange area and efficiency.

[0118] When the heat exchanger 4 is tilted, the support plate 41 can be roughly in the shape of a right triangle, with the hypotenuse abutting against the support part 32 and the right-angled side at the front end connected to the fixing part 33.

[0119] The support plate 41 and the fixing part 33 can be connected by fasteners, snap-fit, plug-in, or other means. When connected by fasteners, the fixing part 33 may be provided with fastener mounting holes.

[0120] In some exemplary embodiments, the air conditioner further includes an air outlet assembly (not shown in the figure), which is disposed at the air outlet 151 and located on the side of the fixing part 33 away from the support part 32, and is connected to the fixing part 33.

[0121] The air outlet assembly can guide the airflow to adjust the air direction and airflow mode, thereby improving the user experience. The air outlet assembly may include an air outlet frame and a sweeping plate mounted on the air outlet frame. The connection between the air outlet assembly and the fixing part 33 improves the stability of the air outlet assembly.

[0122] The air outlet assembly and the fixing part 33 can be connected by fasteners, snap-fit, plug-in, or other means. When connected by fasteners, the fixing part 33 may be provided with fastener mounting holes. The connection structure (such as fastener mounting holes) used to connect the air outlet assembly and the connection structure (such as fastener mounting holes) used to connect the support plate 41 can be staggered to avoid mutual interference.

[0123] In some exemplary embodiments, such as Figure 2 As shown, the fixing part 33 is located at one end of the partition body 31 along its length and protrudes from the side of the partition body 31 toward the heat exchange chamber 15, so that the partition body 31 and the fixing part 33 form an L-shaped structure. In this way, the fixing part 33 can not only strengthen the partition body 31, but also has a relatively large area, which facilitates connection with the support plate 41 and the air outlet assembly of the heat exchanger 4.

[0124] In some exemplary embodiments, such as Figure 26 As shown, the partition body 31 and the fixing part 33 are an integral structure formed by sheet metal, while the supporting part 32 and the partition body 31 are a separate assembly structure.

[0125] In other words, the fixing part 33 can be a flange of a sheet metal part, formed by bending. The supporting part 32, on the other hand, is a separately machined component assembled with the partition body 31. Holes can be stamped into the partition body 31, allowing the supporting part 32 to be assembled onto it. For example, the supporting part 32 can be a plate-like structure with lugs. The lugs are inserted into the stamped holes of the partition body 31 and abut against the other side of the partition body 31, thus fixing the supporting part 32 to the partition body 31 and providing support for the support plate 41 of the heat exchanger 4. In this case, the supporting part 32 can be a sheet metal part or made of other materials.

[0126] In some exemplary embodiments, such as Figures 1 to 5As shown, the partition body 31, support part 32, and fixing part 33 are injection-molded integral structures, which can reduce the number of air conditioner parts and thus improve assembly efficiency. For example, if the partition 3 is an injection-molded part, then the partition body 31, support part 32, and fixing part 33 are injection-molded integral structures. Of course, the molding method of the partition 3 is not limited; for example, it can also be a 3D-printed integral structure.

[0127] In some exemplary embodiments, such as Figures 1 to 5 , Figure 13 As shown, the first volute component 211 and the partition 3 are an integral structure (such as an injection-molded integral structure), which helps reduce the number of air conditioner parts, thereby improving the assembly efficiency of the air conditioner. It also prevents air leakage at the junction of the air outlet of the volute and the air passage 311 of the partition 3. At this time, the module formed by the partition 3, the first volute component 211, and the second volute component 212 can be called an air duct assembly. The air duct assembly may also include a guide ring 213.

[0128] Of course, the first volute 211 and the partition 3 can also be a separate assembly structure, for example, they can be connected by fasteners, snap-fit, plug-in or other means.

[0129] In some exemplary embodiments, such as Figure 5 As shown, the first support 2113 is located on the side of the second support 2114 near the partition 3 and is connected to the partition 3, so that the partition 3 and the first volute 211 form an integral structure.

[0130] In some exemplary embodiments, such as Figure 1 As shown, the first support base 2113 and the second support base 2114 also include an extension plate 2120. The extension plate 2120 is connected to the support base plate 2115 and extends towards the second volute member 212. The extension plate 2120 and the support base plate 2115 are integrally connected to form a reinforcing plate 2119, which is fixedly connected to the chassis 11. The reinforcing plate 2119 of the first support base 2113 is also connected to the partition plate 3, such as... Figure 1 As shown.

[0131] In this way, the contact area between the first support base 2113, the second support base 2114 and the chassis 11 is relatively large, which helps to prevent the volute from tilting relative to the chassis 11 and improves the stability of the volute. Furthermore, the reinforcing plate 2119 of the first support base 2113 is also connected to the partition plate 3. Since the reinforcing plate 2119 is relatively large, the length of the connection point with the partition plate 3 is also relatively large, which can effectively reinforce the end of the partition plate 3 near the chassis 11 and help prevent deformation of the partition plate 3.

[0132] In some exemplary embodiments, the reinforcing plate 2119 has a first reinforcing rib 2161 on the side facing the chassis 11, such as... Figure 3 As shown. The first reinforcing rib 2161 can effectively strengthen the first support base 2113 / second support base 2114, thereby improving the connection strength between the first volute 211 and the chassis 11, and helping to prevent the first volute 211 from deforming.

[0133] Among them, such as Figure 3 As shown, the first reinforcing rib 2161 may include a reinforcing flange extending circumferentially along the reinforcing plate 2119, and ribs located inside the reinforcing flange. The shape and distribution of the ribs are not limited; for example, they may be interlaced ribs, honeycomb ribs, or ribs of other shapes. Cylindrical ribs may be provided at the intersections of the ribs.

[0134] Please combine them together Figure 3 and Figure 5 As shown, the support side plate 2116 of the first support base 2113 is relatively narrow in the left-right direction, so the support side plate 2116 of the first support base 2113 can be set in a stepped shape (e.g., Figure 3 As shown, the area of ​​the supporting side plate 2116 is increased by utilizing the space in the front-to-back direction, which facilitates the setting of multiple ventilation holes 2194 to improve ventilation efficiency. The supporting side plate 2116 of the second support base 2114 is relatively wide in the left-to-right direction. Therefore, the supporting side plate 2116 of the second support base 2114 can extend obliquely along the direction of the inclined segment 2197 of the splicing line at the second split position on this side. Since the supporting side plate 2116 has a large area, multiple ventilation holes 2194 can be set.

[0135] In some exemplary embodiments, such as Figure 1 As shown, the reinforcing plate 2119 of the first support 2113 extends to the end of the partition 3 near the air inlet 141 (i.e., the front end), which can better reinforce the partition 3.

[0136] In some exemplary embodiments, the reinforcing plate 2119 of the first support base 2113 is provided with a sliding engagement portion. When the partition 3 and the first volute component 211 are an integral structure, since the reinforcing plate 2119 of the first support base 2113 will cover a part of the chassis 11, the sliding engagement portion on that side can be provided on the reinforcing plate 2119 of the first support base 2113. The sliding engagement portion on the other side can still be provided on the chassis 11 of the housing 1, or it can also be provided on the reinforcing plate 2119 of the second support base 2114. Of course, the reinforcing plate 2119 of the first support base 2113 may also not be provided with a sliding engagement portion.

[0137] When the partition 3 and the first volute 211 are separate structures, the sliding mating parts on both sides can be set on the chassis 11 of the housing 1.

[0138] In some exemplary embodiments, a guide reinforcement 2162 is provided in the gap between the partition 3 and the first volute body 2110, such as... Figure 1 and Figure 5 As shown. The guide reinforcement 2162 is connected to the partition 3 and the first volute 211. The guide reinforcement 2162 is provided with a guide slope 2167 for guiding the second protrusion 2122 to mate with the first protrusion 2111 (as shown). Figure 1 (As shown).

[0139] Therefore, the guide reinforcement 2162 serves two purposes: firstly, it strengthens the connection between the partition 3 and the first volute component 211, preventing deformation of either component; secondly, the guide ramp 2167 provides good guidance for the installation of the second volute component 212, improving the assembly efficiency of the split volute. Furthermore, when the guide ramp 2167 is provided, the sliding fit on that side can be eliminated, allowing the guide ramp 2167 to directly guide the second volute component 212 to engage with the first volute component 211.

[0140] The guide reinforcement 2162 can be one, which is connected to the first protrusion 2111 near the cover plate 12 and guides the second protrusion 2122 near the cover plate 12 so that the second protrusion 2122 near the cover plate 12 and the first protrusion 2111 near the cover plate 12 are smoothly and accurately aligned (for example, aligning the fastener mounting holes of the two).

[0141] Of course, the guide slope 2167 and the sliding fit part on this side can coexist or be set separately (for example, the guide reinforcement part 2162 only has a reinforcing function and does not have the guide slope 2167. In this case, the guide reinforcement part 2162 is equivalent to the connection reinforcement part 2163 described below).

[0142] In some exemplary embodiments, a connecting reinforcement 2163 (e.g., ...) is provided in the gap between the partition 3 and the first volute body 2110. Figure 5 As shown), the two ends of the connecting reinforcement 2163 are respectively connected to the partition 3 and the first volute 211.

[0143] The connecting reinforcement part 2163 can effectively strengthen the first volute body 2110 and the partition 3, which is beneficial to improving the strength of the partition 3 and the first volute component 211 and preventing the partition 3 or the first volute component 211 from deforming.

[0144] The connecting reinforcement 2163 can be offset from the guide reinforcement 2162 and the first protrusion 2111. Alternatively, a portion of the connecting reinforcement 2163 can be integrated with the two first protrusions 2111 for better reinforcement.

[0145] In some exemplary embodiments, the volute tongue 2195 of the volute is disposed on the first volute member 211, such as... Figure 2 As shown. The inner wall of the volute tongue 2195 is provided with noise-reducing protrusions 2196 (such as...). Figure 4 As shown in the image, this can help reduce noise and lower the operating noise of the air conditioner.

[0146] In some exemplary embodiments, the housing 1 includes a back plate 13 (e.g., Figure 16 As shown), the end of the partition 3 facing the back plate 13 is fixedly connected to the back plate 13, for example, by means of fasteners, snap-fit, plug-in, etc.

[0147] The housing 1 includes the chassis 11 (e.g.) Figure 14 and Figure 15 As shown), the chassis 11 has a flange at one end near the air inlet 141, and the partition 3 is fixedly connected to the flange at the end facing the air inlet 141, for example by fasteners, snap-fit, or plug-in.

[0148] The housing 1 includes a cover plate 12 (such as...) Figure 17 As shown), the end of the partition 3 near the cover plate 12 is fixedly connected to the cover plate 12, for example, by means of fasteners, snap-fit, or plug-in.

[0149] In this way, the front end, rear end and lower end of the partition 3 are fixedly connected to the housing 1, and the upper end of the partition 3 is indirectly connected to the chassis 11 of the housing 1 through the first volute 211, thereby realizing a reliable connection between the partition 3 and the first volute 211 as a whole and the housing 1.

[0150] In some exemplary embodiments, the ends of the partition 3 in the height direction (the end facing the cover plate 12 and / or the end facing the chassis 11) and the ends of the partition 3 in the length direction (the end facing the air inlet 141 and / or the end facing the back plate 13) are provided with a first reinforcing structure. The first reinforcing structure can strengthen the circumferential ends of the partition 3, which is beneficial to improving the strength of the partition 3.

[0151] The side of the partition 3 facing away from the first volute 211 is provided with a second reinforcing structure. The second reinforcing structure can strengthen the side of the partition 3 facing the heat exchanger 4, so that the partition 3 can stably support the heat exchanger 4 and will not cause wind resistance to the volute air duct on the other side.

[0152] In some exemplary embodiments, such as Figure 1 and Figure 3As shown, the first reinforcing structure includes a reinforcing groove 3121 and / or a second reinforcing rib 3122. When the first reinforcing structure includes a reinforcing groove 3121 and a second reinforcing rib 3122, the second reinforcing rib 3122 may be disposed inside and / or outside the reinforcing groove 3121.

[0153] The shape and distribution of the second reinforcing rib 3122 are not limited. For example, it can be a cross-shaped rib, a honeycomb rib, or a rib of other shapes. Cylindrical ribs can be set at the intersection of the ribs.

[0154] like Figure 4 As shown, the second reinforcing structure includes a third reinforcing rib 3123, at least a portion of which is arranged circumferentially along the air passage 311. This helps to prevent deformation of the air passage 311 from affecting the airflow field. The third reinforcing rib 3123 may also be partially located in front of the air passage 311 to reinforce the front of the partition 3, such as... Figure 4 As shown.

[0155] like Figure 4 and Figure 25 As shown, the second reinforcing structure also includes a reinforcing block 3124, which is located on the side of the support portion 32 away from the fixing portion 33 and is connected to the support portion 32 to reinforce the support portion 32 so that the support portion 32 can stably support the heat exchanger 4.

[0156] In some exemplary embodiments, the side plate of the partition body 31 facing the heat exchange chamber 15 is also provided with a positioning part, and the support plate 41 is provided with a positioning mating part. The positioning part and the positioning mating part are in concave-convex fit to position the relative position of the support plate 41 and the partition 3, which is beneficial to improve the assembly efficiency of the heat exchanger 4 and the partition 3.

[0157] The positioning part can be, but is not limited to, the positioning groove 34 (e.g., Figure 14 As shown), the positioning mating part can be, but is not limited to, the positioning protrusion 411 (e.g., Figure 16 As shown, the positioning protrusion 411 is embedded in the positioning groove 34. The end of the positioning groove 34 facing the cover plate 12 can be open, exposing the end of the positioning protrusion 411 facing the cover plate 12. This allows the positioning protrusion 411 to be inserted into the positioning groove 34 either along the direction closer to the partition plate 3 or closer to the chassis 11. Furthermore, the positioning protrusion 411 can be provided with fastener mounting holes, and the groove wall of the positioning groove 34 can also be provided with fastener mounting holes, allowing the positioning protrusion 411 and the positioning groove 34 to be fixedly connected by fasteners. These fasteners can be installed along the height direction of the housing 1. The fasteners connecting the support plate 41 and the fixing part 33 can be installed along the width direction of the housing 1. Thus, the installation directions of the two fasteners used to fix the support plate 41 are perpendicular to each other, improving the reliability of fixing the support plate 41.

[0158] In some exemplary embodiments, the second volute 212 is provided with a sensor mounting portion 2127 (e.g., Figures 7 to 9 As shown), the sensor mounting part 2127 is configured to mount a temperature sensor and / or a humidity sensor. A plane passing through the central axis of the volute and extending along the width direction of the housing 1 is designated as the reference plane; the sensor mounting part 2127 is located between the reference plane and the partition plate 3. The electrical control box 5 is located on the side of the heat exchanger 4 furthest from the fan 2, as shown... Figure 16 As shown.

[0159] In this way, the temperature / humidity sensor can accurately detect the intake air temperature / humidity, and it also helps to reduce the distance between the temperature / humidity sensor and the electrical control box 5, facilitating wiring. The sensor mounting part 2127 can also play a role in turbulence, which helps to reduce noise.

[0160] The sensor mounting part 2127 may include, but is not limited to, structures such as mounting grooves, mounting clips, and mounting slots, so that the temperature sensor / humidity sensor can be fixed to the sensor mounting part 2127.

[0161] In some exemplary embodiments, the partition body 31 is provided with a wire passage 313 at one end near the cover plate 12 (e.g. Figure 4 As shown), the cable port 313 is located between the heat exchanger 4 and the fixing part 33, so that the motor wire of the fan 2, the wire of the temperature sensor and the humidity sensor can pass through the cable port 313 and connect to the electrical control box 5 located on the other side of the heat exchanger 4.

[0162] In some exemplary embodiments, a third reinforcing structure is provided on one end face of the volute housing with the guide ring 213 to reinforce the guide ring 213, which helps to prevent the cover plate 12 from being deformed on that side of the volute housing assembly 21 due to pressure.

[0163] In some exemplary embodiments, such as Figure 8 As shown, the guide ring 213 includes a first arc-shaped segment 2131 and a second arc-shaped segment 2132 connected end to end. The first arc-shaped segment 2131 protrudes from both ends of the second volute body 2121 in a direction close to the first volute body 2110. The first arc-shaped segment 2131 is provided with a limiting protrusion 214 or a limiting groove 215. The third reinforcing structure includes at least one of a fourth reinforcing rib 2133 and a fifth reinforcing rib.

[0164] like Figure 8As shown, the fourth reinforcing rib 2133 is located on the surface of the second arc-shaped segment 2132 facing away from the internal space of the volute. The shape and distribution of the fourth reinforcing rib 2133 are unrestricted; for example, it can be a crisscrossing rib, a honeycomb rib, or other shaped ribs. Cylindrical ribs can be placed at the intersections of the ribs. Testing revealed that placing the fourth reinforcing rib 2133 only in the second arc-shaped segment 2132 has a better effect than placing it around the entire circle of the guide ring 213.

[0165] like Figure 1 and Figure 2 As shown, the fifth reinforcing rib is located on the axial outer end wall of the first volute body 2110 corresponding to the guide ring 213. The fifth reinforcing rib includes multiple radial reinforcing ribs 2164 spaced circumferentially along the first arc-shaped segment 2131 and connecting reinforcing ribs 2165 connected to the multiple radial reinforcing ribs 2164. In this way, the fifth reinforcing rib can effectively strengthen the volute air duct, and its structure is simple and easy to process and form.

[0166] Among them, such as Figure 1 and Figure 2 As shown, cylindrical ribs can be provided at the intersection of radial reinforcing rib 2164 and connecting reinforcing rib 2165. A fifth reinforcing rib can also be provided on the axial outer end wall of the first volute body 2110 facing the chassis 11, such as... Figure 3 As shown.

[0167] In some exemplary embodiments, when the first volute 211 and the partition 3 are integrally formed, the axial outer end wall of the first volute 211 corresponding to the guide ring 213 is further provided with a sixth reinforcing rib 2166 connected to the partition 3, such as... Figure 1 As shown, the sixth reinforcing rib 2166 is equivalent to a triangular reinforcing rib or a trapezoidal reinforcing rib. It is set at the right angle formed by the first volute body 2110 and the partition 3. It can play a good reinforcing role for the first volute body 2110 and the partition 3, which helps to prevent the partition 3 or the first volute part 211 from deforming.

[0168] In some exemplary embodiments, the wind turbine 22 includes a disc fitted onto the drive shaft of the motor 23 and detachably secured to the drive shaft by a first fastener. The first fastener is at least partially located on the side of the disc near the cover plate 12, so that the removal and installation of the first fastener can be performed within the space between the cover plate 12 and the disc.

[0169] The motor 23 is detachably fixed to the chassis 11 by a second fastener. The second fastener is located between the impeller and the chassis 11, and is exposed after the impeller 22 is disengaged from the drive shaft and fits against the cover plate 12, so that the removal and installation of the second fastener can be carried out in the space between the impeller 22 and the chassis 11.

[0170] After the motor 23 is detached from the chassis 11, it can be taken out together with the impeller 22 through the inspection port and the air inlet 141.

[0171] When it is necessary to inspect and repair the impeller 22 and motor 23, the second volute 212 can be removed first, and then the connection wire of the motor 23 can be disconnected. At this time, the first fastener can be removed through the space between the cover plate 12 and the impeller. After the first fastener is removed, the impeller 22 can fall onto the cover plate 12 under the action of gravity (in the factory installation scenario, the cover plate 12 is at the bottom and the chassis 11 is at the top, so the impeller 22 falls onto the cover plate 12). At this time, there is a relatively large space between the impeller 22 and the chassis 11, and the fixing structure of the motor 23 and the chassis 11 can be seen. Therefore, the second fastener can be removed through the space between the impeller 22 and the chassis 11. After the second fastener is removed, the motor 23 can fall onto the cover plate 12 under the action of gravity. Then the impeller 22 and the motor 23 can be taken out together through the inspection port and the air inlet 141 for inspection and maintenance.

[0172] After maintenance, the impeller 22 can be fitted onto the drive shaft of the motor 23. The impeller 22 and motor 23 are then pushed into the housing through the air inlet 141 and into the volute through the inspection port of the first volute component 211. The motor 23 is then lifted using the space between the impeller 22 and the chassis 11, and the second fastener is installed. Once the motor 23 is secured, the impeller 22 is lifted again, and the second fastener is installed using the space between the impeller 22 and the cover plate 12. This completes the installation and fixation of the impeller 22 and motor 23. The motor 23's connecting wire is then extended to and connected to the control box. Finally, the second volute component 212 is installed.

[0173] The above design provides ample space for the disassembly and assembly of the first and second fasteners, which can be completed quickly using operating tools, enabling blind disassembly and assembly of the impeller 22 and motor 23, greatly improving the efficiency of subsequent inspection and maintenance.

[0174] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0175] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0176] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0177] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0178] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0179] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An air conditioner, characterized in that, include: Casing, fan, and guide structure; The side wall of the housing is provided with an air vent. The fan is disposed inside the housing. The fan includes a volute. The central axis of the volute extends along the height direction of the housing. The volute includes a first volute component fixedly connected to the housing and a second volute component detachably connected to the first volute component. The second volute component is configured to enter and exit the housing through the air passage opening. The first volute component and the second volute component are arranged circumferentially along the volute. The guide structure is located inside the housing and is configured to cooperate with the second volute component to guide the second volute component to dock with the first volute component and to limit the axial misalignment between the second volute component and the first volute component. The housing is equipped with a partition that divides the internal space of the housing into a heat exchange chamber and a fan chamber. The partition has an air vent connecting the fan chamber and the heat exchange chamber. The housing has an air inlet communicating with the fan chamber and an air outlet communicating with the heat exchange chamber. The fan is located inside the fan chamber, and the volute has an air outlet corresponding to and communicating with the air vent. The heat exchange chamber and the fan chamber are arranged side by side along the length of the housing. The air inlet and the air outlet are located on the side wall of the housing and are arranged side by side along the length of the housing, with the air inlet forming the air vent opening. With the air outlet's airflow direction being forward, the sidewall of the housing with the air inlet and air outlet is the front sidewall. The length direction of the housing is the left-right direction, the width direction is the front-back direction, and the height direction is the up-down direction. During operation, airflow enters the housing through the air inlet at the front end and exits through the air outlet at the front end, achieving front return air and front exhaust air.

2. The air conditioner according to claim 1, characterized in that, The housing includes a chassis and a cover plate that are spaced apart from each other along the height direction of the housing, and the guide structure includes at least one of a first guide portion and a second guide portion; The first guide portion is configured to guide one end of the second volute near the chassis to mate with one end of the first volute near the chassis; The second guide portion is configured to guide one end of the second volute member near the cover plate to mate with one end of the first volute member near the cover plate.

3. The air conditioner according to claim 2, characterized in that, The second volute component is located on the side of the first volute component closer to the air passage opening; The fan also includes a wind turbine housed in the volute and a motor connected to the wind turbine. The first volute is provided with an inspection port for the wind turbine and the motor to enter and exit the volute. The inspection port is configured to be exposed after the second volute is removed and to communicate with the air passage opening, so that the wind turbine and the motor can enter and exit the casing along the inspection port and the air passage opening for maintenance.

4. The air conditioner according to claim 3, characterized in that, The air conditioner also includes a heat exchanger disposed within the heat exchange cavity; The first volute is fixedly connected to the chassis, and the motor is detachably connected to the chassis.

5. The air conditioner according to claim 4, characterized in that, The volute near the chassis has a first split position and a second split position spaced apart along its circumference. The first volute near the chassis and the second volute near the chassis are spliced ​​at the first split position and the second split position. At least one of the splicing line at the first split position and the splicing line at the second split position includes an inclined segment. The plane passing through the central axis of the volute and extending along the width direction of the casing is denoted as the reference plane. The inclined segment is inclined relative to the reference plane, and the distance w1 between the end of the inclined segment near the reference plane and the air inlet is less than the distance w2 between the end of the inclined segment away from the reference plane and the air inlet.

6. The air conditioner according to any one of claims 2 to 5, characterized in that, The first volute component includes a first volute body and a first connecting portion connected to the first volute body; the second volute component includes a second volute body and a second connecting portion connected to the second volute body; the first volute body and the second volute body together form a volute-shaped air duct; the first connecting portion and the second connecting portion are detachably connected. The first volute component further includes a first support base and a second support base, which are respectively disposed at both ends of the circumferential direction of the first volute body and are fixedly connected to the chassis. The first support base and the second support base are provided with the first guide portion.

7. The air conditioner according to claim 6, characterized in that, Both the first support base and the second support base include a support base plate, a support side plate connected to the support base plate and the first volute body, and a reinforcing wall erected on the support base plate and connected to the support side plate; the support base plate is fixedly connected to the chassis, and the support side plate is provided with ventilation holes; The first guide portion includes a guide bevel provided on the reinforcing wall. The guide bevel is located at one end of the reinforcing wall near the air passage opening and is configured to guide the end of the second volute body near the chassis to move in a direction close to and aligned with the first volute body.

8. The air conditioner according to claim 7, characterized in that, The first volute body has a tongue at one end near the chassis, and the second volute body has a slot at one end near the chassis. The tongue is configured to be inserted into the slot to restrict the movement of the second volute relative to the first volute towards the cover plate. The end of the reinforcing wall near the cover plate forms a limiting gap with the first volute body, and the slot wall near the chassis is inserted into the limiting gap.

9. The air conditioner according to claim 8, characterized in that, The first volute body is provided with a sealing part, and the second volute body is provided with a sealing mating part. The sealing part and the sealing mating part are in concave-convex fit to make the joint between the first volute body and the second volute body sealed. The sealing part includes a first stepped part, which is located at one end of the first volute body near the chassis. The first stepped part has a first protruding edge and a first stepped groove, and the first stepped groove is located on the side of the first protruding edge facing the cover plate. The tongue is flush with the inner wall surface of the first volute body and protrudes from the first protruding edge in a direction close to the second volute body. The sealing mating part includes a second stepped part, which is located at one end of the second volute body near the chassis. The second stepped part has a second protruding edge and a second stepped groove, and the second stepped groove is located on the side of the second protruding edge facing the chassis. The first protruding edge is inserted into the second stepped groove, and the second protruding edge is inserted into the first stepped groove and is flush with the inner wall surface of the first volute body; the side wall of the slot protrudes from the first volute body in the direction close to the chassis, so that the slot wall close to the chassis can be inserted into the limiting gap.

10. The air conditioner according to claim 6, characterized in that, The volute is provided with a first air inlet and a second air inlet at both axial ends. A first air intake space is provided between the volute and the cover plate, which connects the air inlet of the housing with the first air inlet. A second air intake space is provided between the volute and the chassis, which connects the air inlet with the second air inlet. Both the first support base and the second support base are provided with ventilation holes that communicate with the air inlet and the second air intake space.

11. The air conditioner according to any one of claims 2 to 5, characterized in that, The volute is provided with an air inlet at one end near the cover plate, and the fan also includes a guide ring at the air inlet, the guide ring and the second volute being an integral structure; One of the first volute component and the guide ring is provided with a limiting protrusion, and the other is provided with a limiting groove, wherein the limiting protrusion is embedded in the limiting groove; The second guide portion is located at the opening of the limiting groove and is configured to guide the limiting protrusion into the limiting groove so as to guide the end of the second volute near the cover plate to mate with the end of the first volute near the cover plate.

12. The air conditioner according to claim 11, characterized in that, The limiting protrusion is provided on the guide ring, and the limiting groove is provided on the first volute component; the second guide portion includes a guide flange, one end of the guide flange is connected to the end of the slot near the cover plate, and the other end of the guide flange is configured to extend obliquely in a direction close to the second volute component and close to the cover plate.

13. The air conditioner according to claim 11, characterized in that, The first volute component has a first flange and a first flange connected to the first flange at one end near the cover plate. The first flange, the first flange and the end wall of the first volute component near the cover plate together form the limiting groove. The limiting protrusion includes: a second flange and a second flange, the second flange being connected to the radial outer end of the guide ring; the second flange being connected to the end of the second flange away from the guide ring and bent relative to the second flange, so that the second flange and the second flange enclose a third stepped groove; The second flange is embedded in the limiting groove, and the edge of the end wall of the first volute near the cover plate is embedded in the third step groove and is flush with the surface of the guide ring facing away from the cover plate.

14. The air conditioner according to claim 13, characterized in that, The limiting protrusion also includes a supporting inclined side, one end of which is connected to the end of the second flange away from the second flange, and the other end of which is configured to extend obliquely toward the first flange and the first flange.

15. The air conditioner according to claim 14, characterized in that, The supporting oblique side is provided with a supporting protrusion at one end near the second flange, and the supporting protrusion abuts against the second flange.

Images