Volute assembly, fan assembly and heat pump water heater

Abstract

The invention discloses a volute assembly, a fan assembly and a heat pump water heater, and belongs to the technical field of electrical equipment. Wherein the volute assembly comprises a first shell and a second shell, the first shell is provided with an air outlet and an air inlet, one side of the first shell is provided with a mounting port, and an included angle is formed between the orientation of the mounting port and the height direction of the volute assembly; the second shell is provided with a mounting part used for mounting a fan, the second shell is mounted at the mounting opening and detachably connected with the first shell, the second shell and the first shell form an air duct, and the air duct communicates with the air inlet and the air outlet. The volute assembly can be disassembled on the side face of the heat pump water heater, the disassembling difficulty of the draught fan is remarkably reduced, the maintenance efficiency of the draught fan is improved, the application scene of the volute assembly can be increased, and the volute assembly can be flexibly applied to the installation environment with the narrow space in the height direction.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a volute assembly, a fan assembly, and a heat pump water heater. Background Technology

[0002] In related technologies, the volute assembly of heat pump water heaters typically employs a detachable design to allow for the repair or replacement of internal components when needed. However, in practical applications, when the fan of a heat pump water heater malfunctions, maintenance personnel must first remove the entire outer casing of the heat pump water heater before they can further disassemble the first housing, which houses the fan, from the volute assembly along its height. This process is not only time-consuming and labor-intensive, but also presents significant challenges in environments with limited vertical space, making the separation of the first housing with the fan particularly difficult. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a volute assembly that simplifies the maintenance process of wind turbines and improves the efficiency of wind turbine assembly and disassembly.

[0004] The present invention also proposes a fan assembly and a heat pump water heater that include the above-mentioned volute assembly.

[0005] According to a first aspect of the present invention, a volute assembly includes: a first housing and a second housing, the first housing having an air outlet and an air inlet, and a mounting opening on one side of the first housing, the mounting opening being oriented at an angle to the height direction of the volute assembly; the second housing having a mounting portion for mounting a fan, the second housing being mounted at the mounting opening and detachably connected to the first housing, the second housing and the first housing forming an air duct, the air duct connecting the air inlet and the air outlet.

[0006] The volute assembly according to embodiments of the present invention has at least the following beneficial effects: In this embodiment of the invention, the volute assembly has an installation port on one side of the first housing. The second housing is installed in the installation port and detachably connected to the first housing. The second housing has a mounting part for installing the fan. Through the modular design of the volute assembly, when the fan malfunctions, only the second housing needs to be disassembled to repair or replace the fan, simplifying the fan disassembly process and greatly improving the flexibility and ease of repair of the volute assembly, thereby improving the fan maintenance efficiency. In addition, the orientation of the installation port is set at an angle to the height direction of the volute assembly. Therefore, the disassembly operation of the second housing does not need to be carried out in the height direction of the volute assembly. Compared with the fan that can only be installed and removed from the top of the heat pump water heater, the volute assembly of this embodiment can be disassembled from the side of the heat pump water heater. This not only significantly reduces the difficulty of fan disassembly and shortens the time required for fan disassembly, but also increases the application scenarios of the volute assembly, allowing it to be flexibly applied in installation environments with relatively narrow space in the height direction.

[0007] According to some embodiments of the present invention, the first housing is provided with a volute tongue, the air outlet and the volute tongue are arranged sequentially from top to bottom along the height direction of the first housing, and along the circumference of the first housing, the port of the mounting port is formed on the side of the volute tongue away from the air outlet. According to some embodiments of the present invention, the first housing is provided with a guide groove, the guide groove being provided from the port of the mounting port along the direction of the second housing toward the first housing, and the mounting part being provided with a guide plate that slides in cooperation with the guide groove.

[0008] According to some embodiments of the present invention, along the axial direction of the air inlet, the air inlet and the guide groove are respectively disposed on opposite sides of the first housing. The guide groove is formed on the end face of the first housing facing the air inlet. The guide groove is provided with a first wall and two second walls. The first wall is disposed along the height direction of the volute assembly. The two second walls are respectively connected to the two ends of the first wall and are configured to limit the guide plate in the height direction of the volute assembly. The two second walls are respectively provided with limiting blocks. The limiting blocks are spaced apart from the first wall to define a recess that is slidably connected to the edge of the guide plate.

[0009] According to some embodiments of the present invention, the end face of the mounting port is provided with a first sealing step, and the end face of the second housing facing the first housing is provided with a second sealing step. The first sealing step and the second sealing step are respectively arranged and sealed together along the circumference of the mounting port.

[0010] According to some embodiments of the present invention, the volute assembly includes a first snap-fit ​​structure and a first fastener. The first snap-fit ​​structure includes a first snap and a first latch that are interlocked. The first housing is provided with one of the first snap and the first latch, and the second housing is provided with the other of the first snap and the first latch. The first fastener is connected to the second housing and the first housing.

[0011] According to some embodiments of the present invention, the first housing includes a first housing portion and a second housing portion connected to each other, the first housing portion is provided with the air inlet, the top end of the first housing portion and the top end of the second housing portion surround to form the air outlet, and the side wall of the first housing portion and the side wall of the second housing portion surround to form the mounting port.

[0012] According to some embodiments of the present invention, the first housing further includes a second snap-fit ​​structure and a second fastener. The second snap-fit ​​structure includes a second snap and a second latch that are interlocked. The first housing portion is provided with one of the second snap and the second latch, and the second housing portion is provided with the other of the second snap and the second latch. The second fastener is connected to the first housing portion and the second housing portion. According to a second aspect of the present invention, a fan assembly includes a fan and a volute assembly as described in the first aspect embodiment, wherein the fan is connected to the mounting portion.

[0013] The wind turbine assembly according to embodiments of the present invention has at least the following beneficial effects: The fan assembly adopts the volute assembly of the first aspect embodiment. The fan is installed in the mounting part. Through the modular design of the volute assembly, when the fan fails, only the second housing needs to be disassembled to repair or replace the fan. This simplifies the fan disassembly process, greatly improves the flexibility and ease of repair of the fan assembly, and thus improves the fan maintenance efficiency. In addition, the orientation of the mounting port is set at an angle to the height direction of the volute assembly. Therefore, the disassembly operation of the second housing does not need to be carried out in the height direction of the volute assembly. Compared with the fan that can only be installed and removed from the top of the heat pump water heater, the fan assembly of this embodiment can be disassembled from the side of the heat pump water heater. This not only significantly reduces the difficulty of fan disassembly and shortens the time required for fan disassembly, but also increases the application scenarios of the fan assembly, making it flexibly applicable to installation environments with relatively narrow space in the height direction.

[0014] According to some embodiments of the present invention, the fan assembly further includes a fixing plate, the fixing plate being a metal part, one end of the fixing plate being connected to the fan, and the other end being connected to the mounting part.

[0015] A heat pump water heater according to a third aspect of the present invention includes the fan assembly described in the second aspect embodiment.

[0016] The heat pump water heater according to embodiments of the present invention has at least the following beneficial effects: The heat pump water heater adopts the fan assembly of the second embodiment. Through the modular design of the volute assembly, when the fan fails, only the second housing needs to be disassembled to repair or replace the fan. This simplifies the fan disassembly process, greatly improves the flexibility and ease of repair of the heat pump water heater, and thus improves the maintenance efficiency of the heat pump water heater. In addition, it expands the application scenarios of the heat pump water heater, enabling it to be flexibly applied in installation environments with relatively narrow vertical space.

[0017] According to some embodiments of the present invention, the heat pump water heater includes a housing with an inner cavity inside, a fan assembly installed in the inner cavity, an opening and a panel on one side of the housing, the opening communicating with the inner cavity, the panel being detachably connected to the opening, and the mounting port facing the opening.

[0018] According to some embodiments of the present invention, the heat pump water heater includes an evaporator, which is arranged side by side with the fan assembly and located on one side of the air inlet. The evaporator is provided with a side plate, and a first housing is provided with a slot at one end near the evaporator. The side plate is inserted into the slot, and the first housing and the evaporator are connected by a third fastener.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a volute assembly according to an embodiment of the present invention; Figure 2 This is a partial exploded view of a heat pump water heater according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the fan assembly disassembling the second housing according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a heat pump water heater according to an embodiment of the present invention when the second housing is disassembled; Figure 5 This is a front view of a volute assembly according to an embodiment of the present invention; Figure 6 for Figure 5 A cross-sectional view along the AA direction; Figure 7 for Figure 6 A magnified view of a section at point B in the middle; Figure 8 for Figure 5 A cross-sectional view along the CC direction; Figure 9 for Figure 8 A magnified view of a section at point D; Figure 10 This is a schematic diagram of the structure of the second housing according to an embodiment of the present invention; Figure 11 for Figure 1 A partial sectional view at point E in the middle; Figure 12 This is an exploded view of the first casing according to an embodiment of the present invention; Figure 13 This is an exploded view of the second housing and the fan according to an embodiment of the present invention; Figure 14 for Figure 2 A magnified view of a section at point F.

[0021] Icon labels: Heat pump water heater 1000; Fan assembly 101; mounting plate 1011; 102; housing; 1021; opening; 1022; panel; 1023; air inlet; 1024; air outlet; 1025; chassis; 1026; Evaporator 103; Side plate 1031; 100 volute assembly; First housing 110; air outlet 111; air inlet 112; mounting port 113; port 1131; volute tongue 114; guide groove 115; first wall surface 1151; second wall surface 1152; baffle 1153; limiting block 116; recess 1161; first sealing step 117; first housing portion 118; bent section 1181; second housing portion 119; slot 1191; Second housing 120; mounting part 121; guide plate 122; second sealing step 123; Air duct 130; First perimeter 131; Second perimeter 132; First snap-fit ​​structure 140; First snap-fit ​​141; First snap-fit ​​position 142; First fastener 150; First through hole 151; First connecting hole 152; Second snap-fit ​​structure 160; Second snap fastener 161; Second snap position 162; Second fastener 170; Second through hole 171; Second connecting hole 172; Third fastener 180; Support part 190; Fan 200; Motor 210; Impeller 220; Fourth fastener 300; Fifth fastener 400; Sixth fastener 500. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0024] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0025] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0026] Understandably, to improve the maintainability and flexibility of heat pump water heaters, the volute assembly of existing heat pump water heaters is generally composed of at least two first shells joined together, and the entire assembly adopts a detachable design. However, although the detachable design improves the convenience of maintenance to some extent, in actual application, when the fan of the heat pump water heater malfunctions and needs repair or replacement, maintenance personnel still need to first remove the entire outer shell of the heat pump water heater before they can disassemble the first shell where the fan is installed. This process is not only cumbersome and difficult to operate, but also requires tedious reassembly work after the repair is completed, increasing the overall maintenance cycle and complexity.

[0027] Furthermore, existing volute assemblies are typically arranged along the vertical direction, meaning that disassembly of the fan's first casing must be performed vertically. This makes separating the fan-mounted first casing challenging in environments with limited vertical space. Moreover, the design often requires ample vertical space for maintenance personnel, further wasting installation space and limiting the application range of heat pump water heaters.

[0028] Therefore, referring to Figure 1 and Figure 2 As shown, some embodiments of the present invention provide a volute assembly 100, which is suitable for a heat pump water heater 1000. The heat pump water heater 1000 includes a housing 102, which has a hollow structure and an inner cavity 1021. The volute assembly 100 is disposed within the inner cavity 1021. See details below. Figures 1 to 14 The volute assembly 100 is described below.

[0029] Reference Figure 1 and Figure 3 As shown, in this embodiment of the invention, the volute assembly 100 includes a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 are interconnected and can form a complete volute structure. The first housing 110 and the second housing 120 cooperate to form an air duct 130. When it is necessary to inspect or maintain the interior of the volute structure, the first housing 110 and the second housing 120 can be directly separated. This modular design not only enhances the flexibility of the volute assembly 100, enabling it to adapt to different maintenance needs, but also improves the ease of repair of the volute assembly 100, shortens maintenance time, and reduces operational difficulty.

[0030] Combination Figure 3 As shown, in this embodiment of the invention, the second housing 120 is provided with a mounting portion 121, and the fan 200 can be detachably mounted to the mounting portion 121. For example, the fan 200 and the mounting portion 121 can be connected by screws, by clips, or by other forms of connection to achieve a detachable connection; this embodiment does not limit this.

[0031] Specifically, refer to Figure 1 and Figure 3 As shown, in this embodiment of the invention, the air outlet 111 and air inlet 112 of the air duct 130 are both located in the first housing 110, wherein the air inlet 112 is the inlet of the air duct 130, and the air outlet 111 is the outlet of the air duct 130. Combined with... Figure 2As can be understood from the diagram, in this embodiment, the air outlet 111 of the volute assembly 100 is interconnected with the air outlet 1025 of the housing 102. In this embodiment, the housing 102 is provided with an air inlet 1024 and an air outlet 1025, which are arranged side by side. When the volute assembly 100 is assembled in the inner cavity 1021 of the housing 102, the volute assembly 100 is located on the side of the inner cavity 1021 closer to the air outlet 1025, so that the air outlet 111 of the volute assembly 100 is arranged opposite to the air outlet 1025 of the housing 102.

[0032] Reference Figure 3 As shown, in this embodiment of the invention, a mounting opening 113 is provided on one side of the first housing 110. The size and shape of the mounting opening 113 match that of the second housing 120. Based on this, the second housing 120 can be installed in the mounting opening 113, and the first housing 110 and the second housing 120 are detachably connected. Specifically, the first housing 110 and the second housing 120 can be connected to each other by fasteners such as screws and nuts, or by a snap-fit ​​structure, or by other forms of connection to achieve a detachable connection.

[0033] To enable disassembly of the second housing 120 in directions other than the height direction of the volute assembly 100, refer to Figure 3 As shown, in this embodiment of the invention, the orientation of the mounting port 113 is set at an angle to the height direction of the volute assembly 100, that is, the orientation of the mounting port 113 is neither upward nor downward. In one example, the orientation of the mounting port 113 may be set forward in the horizontal direction; in another example, the orientation of the mounting port 113 may be forward and tilted upward.

[0034] It is understandable that the orientation of the mounting port 113 is set at an angle to the height direction of the volute assembly 100 so that the installation and removal direction of the second housing 120 is not in the height direction of the volute assembly 100. Specifically, in conjunction with Figure 4 It is understood that when the volute assembly 100 is assembled in the inner cavity 1021 of the housing 102, the second housing 120 can be disassembled and installed from the side of the housing 102. Compared with the fact that the fan 200 can only be installed and removed from the top of the heat pump water heater 1000, disassembling the second housing 120 from the side of the housing 102 not only significantly reduces the difficulty of disassembling the fan 200 and shortens the time required for disassembling the fan 200, but also increases the application scenarios of the volute assembly 100, enabling it to be flexibly applied in installation environments where the space in the height direction is relatively narrow.

[0035] Reference Figure 1 and Figure 3As shown, in this embodiment of the invention, the first housing 110 has a volute tongue 114 for dividing airflow. Along the height direction of the first housing 110, the air outlet 111 and the volute tongue 114 are arranged sequentially from top to bottom. The arrangement of the volute tongue 114 allows part of the airflow to flow smoothly to the air outlet 111. Therefore, to prevent the mounting port 113 from damaging the structure of the volute tongue 114, in this embodiment, along the circumference of the first housing 110, the port 1131 of the mounting port 113 is located on the side of the volute tongue 114 away from the air outlet 111. Combined with... Figure 5 It can be understood that, along the left and right direction of the volute assembly 100, the air outlet 111 is located on the left side of the volute tongue 114, and the port 1131 of the mounting port 113 is located on the right side of the volute tongue 114.

[0036] It is understood that, in the embodiments of the present invention, Figure 5 The left and right directions in the middle are Figure 4 Based on the front-to-back direction of the housing 102, in this embodiment, the mounting port 113 is oriented horizontally forward. When the fan 200 malfunctions, maintenance personnel can stand in front of the housing 102 and pull the second housing 120 out from back to front, separating the second housing 120 from the first housing 110. When reassembling the fan 200, maintenance personnel can similarly stand in front of the housing 102 and push the second housing 120 in from front to back, connecting the second housing 120 to the first housing 110. Compared to disassembling the second housing 120 along the height direction of the volute assembly 100, this significantly improves the ease of assembly and disassembly of the second housing 120 and reduces the operational difficulty for maintenance personnel.

[0037] To further improve the efficiency of disassembling and assembling the 200 wind turbine, refer to Figure 3 As shown, in this embodiment of the invention, the first housing 110 is provided with a guide groove 115 facing the second housing 120, and the second housing 120 is provided with a guide plate 122 corresponding to the guide groove 115. The guide groove 115 extends from the port 1131 of the mounting port 113 along the direction from the second housing 120 toward the first housing 110, and is located on one side of the mounting port 113. The shape and size of the guide groove 115 match the guide plate 122, and the guide plate 122 is slidably connected to the guide groove 115. Therefore, the guide plate 122 can slide along the line connecting the second housing 120 and the first housing 110. In this embodiment, the guide plate 122 can protrude from the end face of the second housing 120 facing the first housing 110. Specifically, the end of the end face of the second housing 120 facing the first housing 110 that is away from the air inlet 112 protrudes towards the first housing 110 to form the guide plate 122. In one example, the guide groove 115 and the guide plate 122 are square in shape.

[0038] Specifically, taking the orientation of the mounting port 113 as an example of being positioned horizontally and facing forward, refer to... Figure 8 and Figure 9 As shown, when disassembling the second housing 120, the second housing 120 moves from back to front. Based on this, the guide plate 122 slides from back to front in the guide groove 115. The cooperation between the guide plate 122 and the guide groove 115 plays a guiding role in the disassembly of the second housing 120, which facilitates the maintenance personnel to separate the second housing 120 from the first housing 110. It also reduces the possibility of the second housing 120 colliding with other components due to the skewed disassembly direction, and reduces the risk of damage to the volute assembly 100 during the disassembly of the fan 200.

[0039] Continue to refer to Figure 8 and Figure 9 As shown, when assembling the second housing 120, the second housing 120 moves from front to back. Based on this, the guide plate 122 enters the guide groove 115 from the opening of the guide groove 115 and slides along the guide groove 115 from front to back. The cooperation between the guide plate 122 and the guide groove 115 plays a guiding role in the assembly of the second housing 120, which makes it easier for maintenance personnel to align the second housing 120 with the first housing 110 and connect the two. It also reduces the possibility of assembly failure due to the skewed disassembly direction of the second housing 120 or deformation due to compression with other components.

[0040] Reference Figure 3 and Figure 4 As shown, to prevent the guide plate 122 from blocking the air inlet 112 when the first housing 110 and the second housing 120 are connected, in this embodiment of the invention, the air inlet 112 and the guide groove 115 are respectively located on opposite sides of the first housing 110 along the axial direction of the air inlet 112. Wherein, combined with Figure 6 and Figure 7 It is understood that the guide groove 115 is formed on the end face of the first housing 110 facing the air inlet 112. Specifically, the end face of the first housing 110 is recessed in the direction away from the air inlet 112 to form the guide groove 115. It should be noted that the guide groove 115 can be formed only on the recessed end face of the first housing 110 facing the air inlet 112, or the end face of the first housing 110 away from the air inlet 112 can protrude away from the air duct 130 so that the guide groove 115 is formed on the end face of the first housing 110 facing the air inlet 112. This embodiment does not limit this. In this embodiment, the guide groove 115 is connected to the air duct 130. When the fan 200 is installed on the second housing 120 and the second housing 120 is connected to the first housing 110, part of the structure of the fan 200 can pass through the guide groove 115, thereby improving the space utilization rate within the air duct 130.

[0041] Reference Figure 7As shown, in this embodiment of the invention, the guide groove 115 is formed by a first wall surface 1151 and two second wall surfaces 1152, wherein both the first wall surface 1151 and the second wall surface 1152 are formed by the end face of the first housing 110 facing the air inlet 112. Specifically, the first wall surface 1151 extends along the height direction of the volute assembly 100, and the two second wall surfaces 1152 are respectively connected to the two ends of the first wall surface 1151 in the height direction of the volute assembly 100, and the second wall surfaces 1152 extend in the left-right direction. The end of the second wall surface 1152 away from the first wall surface 1151 is provided with a limiting block 116 extending along the height direction of the volute assembly 100. It can be understood that in this embodiment, the limiting block 116 located on the relatively upper side protrudes downward, and the limiting block 116 located on the relatively lower side protrudes upward, thereby cooperating with the first wall surface 1151 and the second wall surface 1152 to define the guide groove 115.

[0042] Reference Figure 7 As shown, in this embodiment of the invention, a recess 1161 is defined between the limiting block 116 and the first wall surface 1151. The recess 1161 is part of the guide groove 115, and the two recesses 1161 are respectively located at both ends of the guide groove 115 along the height direction of the volute assembly 100. It can be understood that in this embodiment, the recess 1161 is slidably connected to the edge of the guide plate 122, thereby playing a guiding role for the guide plate 122.

[0043] Combination Figure 7 and Figure 9 As shown, in this embodiment of the invention, when the guide plate 122 is inserted into the guide groove 115, the two second wall surfaces 1152 are located on the upper and lower sides of the guide plate 122, respectively. Based on this, the two second wall surfaces 1152 cooperate to restrict the displacement of the guide plate 122 in the height direction of the volute assembly 100, thereby achieving the limitation of the guide plate 122 in the vertical direction. Since the limiting block 116 and the first wall surface 1151 are spaced apart along the axial direction of the fan 200, the two limiting blocks 116 and the first wall surface 1151 are located on the left and right sides of the guide plate 122, respectively. The two limiting blocks 116 and the first wall surface 1151 cooperate to restrict the displacement of the guide plate 122 in the axial direction of the fan 200, thereby achieving the limitation of the guide plate 122 in the left and right direction, improving the connection stability of the first housing 110 and the second housing 120, and ensuring the sealing of the air duct 130.

[0044] Reference Figure 9As shown, in this embodiment of the invention, the rear end of the first wall 1151 is provided with a baffle 1153 extending in the left-right direction. The baffle 1153 can abut against the guide plate 122, thereby restricting the guide plate 122 from moving further backward, thereby preventing the second housing 120 from continuing to move toward the first housing 110, and reducing the possibility of the second housing 120 squeezing the first housing 110.

[0045] It is understood that in this embodiment of the invention, the first housing 110 and the second housing 120 are interconnected to form an air duct 130. Based on this, in order to reduce the possibility of airflow in the air duct 130 leaking from the gap between the first housing 110 and the second housing 120, i.e., from the port 1131 of the mounting port 113, refer to... Figure 3 and Figure 10 As shown, the end face of the first housing 110 near the second housing 120, i.e., the end face of the mounting port 113, is provided with a first sealing step 117. Correspondingly, the end face of the second housing 120 facing the first housing 110 is provided with a second sealing step 123 that matches the first sealing step 117. Specifically, the first sealing step 117 and the second sealing step 123 extend circumferentially along the mounting port 113.

[0046] Combination Figure 11 It is understood that, in the embodiments of the present invention, when the first housing 110 and the second housing 120 are connected, the first sealing step 117 and the second sealing step 123 overlap in an alternating manner, thereby achieving a sealed connection between the first sealing step 117 and the second sealing step 123, improving the sealing effect of the first housing 110 and the second housing 120, and ensuring the airtightness of the air duct 130.

[0047] Reference Figure 1 and Figure 3 As shown, in this embodiment of the invention, the first housing 110 and the second housing 120 are pre-connected by a first snap-fit ​​structure 140, and then the first housing 110 and the second housing 120 are fastened together by a first fastener 150. Specifically, the first snap-fit ​​structure 140 includes a first snap-fit ​​141 and a first latch 142, wherein the first snap-fit ​​141 is disposed in one of the first housing 110 and the second housing 120, and the first latch 142 is disposed in the other of the first housing 110 and the second housing 120. The snap-fit ​​of the first snap-fit ​​141 and the first latch 142 realizes the pre-connection of the first housing 110 and the second housing 120.

[0048] Understandably, when assembling the second housing 120, it can be first aligned with the mounting port 113 and pushed in. During this process, the first latch 141 and the first snap-fit ​​142 engage, thereby positioning the second housing 120. Based on this, the first housing 110 and the second housing 120 are then securely connected using the first fastener 150. This not only reduces the difficulty of assembling the second housing 120 but also improves its assembly efficiency and accuracy, thereby enhancing the sealing performance of the air duct 130.

[0049] Reference Figure 3 As shown, taking the first buckle 141 disposed in the first housing 110 and the first latch 142 disposed in the second housing 120 as an example, in this embodiment of the invention, the first buckle 141 is disposed on one side of the port 1131 of the mounting opening 113, and the first buckle 141 protrudes towards the second housing 120. Correspondingly, the first latch 142 is disposed on the end face of the second housing 120 facing the first housing 110, and the first latch 142 is provided with a through groove, through which the first buckle 141 passes and engages with the first latch 142. The second housing 120 is provided with a first through hole 151, and the first housing 110 is provided with a first connecting hole 152 communicating with the first through hole 151. The first fastener 150 passes through the first through hole 151 and the first connecting hole 152 in sequence to achieve a fastening connection between the first housing 110 and the second housing 120. It should be noted that in this embodiment of the invention, the first fastener 150, the second fastener 170, the third fastener 180, the fourth fastener 300, the fifth fastener 400, and the sixth fastener 500 can be fastening components of the same specification. For ease of description, the first fastener 150 is used as an example. In one example, the first fastener 150 is a screw, and the first connecting hole 152 is a threaded hole that can be threaded with the screw. Based on this, the first fastener 150 can pass through the first through hole 151 and mate with the threaded hole of the first housing 110 to achieve a fastening connection by means of threaded connection. It should be noted that the first fastener 150 is not limited to a screw, but can also be a rivet, etc. The first fastener 150 and the first connecting hole 152 can be selected and set according to the actual situation, and this embodiment does not limit this.

[0050] To further realize the modular design of the volute assembly 100, refer to Figure 3 and Figure 12As shown, in this embodiment of the invention, the first housing 110 includes a first housing portion 118 and a second housing portion 119, which are detachably connected. An air inlet 112 is disposed on the end face of the first housing portion 118 extending along the height direction of the volute assembly 100. The top ends of the first housing portion 118 and the second housing portion 119 are arc-shaped structures. When the first housing portion 118 and the second housing portion 119 are connected to each other, the top ends of the first housing portion 118 and the second housing portion 119 can form an air outlet 111.

[0051] Specifically, refer to Figure 12 As shown, in this embodiment of the invention, the first shell portion 118 protrudes towards the end face of the second shell portion 119 to form a first perimeter 131, and correspondingly, the second shell portion 119 protrudes towards the end face of the first shell portion 118 to form a second perimeter 132. The first perimeter 131 and the second perimeter 132 are disposed opposite to each other. When the first shell portion 118 and the second shell portion 119 are connected to each other, the first perimeter 131 and the second perimeter 132 are sealed together, thereby forming an air duct 130. The first perimeter 131 and the second perimeter 132 serve as the inner walls of the air duct 130 and play a guiding role.

[0052] Reference Figure 3 As shown, in this embodiment of the invention, the mounting opening 113 is generally square, wherein the side wall of the second shell portion 119 is formed with a bent section 1181. When the first shell portion 118 and the second shell portion 119 are connected to each other, the bent section 1181 and the end face of the first shell portion 118 extending along the height direction of the volute assembly 100 surround each other to form the mounting opening 113.

[0053] Reference Figure 5 As shown, in this embodiment of the invention, the first shell portion 118 and the second shell portion 119 are pre-connected by a second snap-fit ​​structure 160, and then the first shell portion 118 and the second shell portion 119 are fastened together by a second fastener 170. Specifically, the second snap-fit ​​structure 160 includes a second snap 161 and a second latch 162, wherein the second snap 161 is disposed on one of the first shell portion 118 and the second shell portion 119, and the second latch 162 is disposed on the other of the first shell portion 118 and the second shell portion 119. The snapping of the second snap 161 and the second latch 162 realizes the pre-connection of the first shell portion 118 and the second shell portion 119.

[0054] Understandably, when assembling the first housing 110, the first housing portion 118 can be pushed towards the second housing portion 119. During this pushing process, the second latch 161 and the second fastener 162 engage, thereby positioning the first housing portion 118. Based on this, the first housing portion 118 and the second housing portion 119 are securely connected using the second fastener 170. This not only reduces the assembly difficulty of the first housing 110 but also improves the assembly efficiency and accuracy, thereby enhancing the sealing performance of the air duct 130.

[0055] Reference Figure 5 and Figure 12 As shown, taking the example of a second buckle 161 located in the first housing portion 118 and a second latch 162 located in the second housing portion 119, in this embodiment of the invention, the second buckle 161 is located on the side wall of the first housing portion 118 and protrudes towards the second housing portion 119. Correspondingly, the second latch 162 is located on the side wall of the second housing portion 119 and has a through groove. The second buckle 161 passes through the through groove and engages with the second latch 162. The second housing portion 119 has a second through hole 171, and the first housing portion 118 has a second connecting hole 172 communicating with the second through hole 171. The second fastener 170 passes through the second through hole 171 and the second connecting hole 172 in sequence to achieve a fastening connection between the first housing portion 118 and the second housing portion 119.

[0056] Reference Figure 3 As shown, an embodiment of the present invention also proposes a fan assembly 101, which includes a fan 200 and the volute assembly 100 of the above embodiment, wherein the fan 200 is connected to the mounting portion 121 of the second housing 120. Specifically, in conjunction with Figure 13 As can be understood from the diagram, the fan 200 includes a motor 210 and a fan wheel 220, wherein the fan wheel 220 is connected to the output shaft of the motor 210 via a sixth fastener 500, and the motor 210 is detachably mounted on the mounting part 121.

[0057] It is understood that the fan assembly 101 adopts the volute assembly 100 of the above embodiment. Through the modular design of the volute assembly 100, when the fan 200 fails, only the second housing 120 needs to be disassembled to repair or replace the fan 200. This simplifies the disassembly process of the fan 200, greatly improves the flexibility and repair convenience of the fan assembly 101, and thus improves the maintenance efficiency of the fan 200. In addition, the orientation of the mounting port 113 is set at an angle to the height direction of the volute assembly 100. Therefore, the disassembly operation of the second housing 120 does not need to be carried out in the height direction of the volute assembly 100. Compared with the fan 200, which can only be installed and removed on the upper side of the heat pump water heater 1000, the fan assembly 101 of this embodiment can be disassembled on the side of the heat pump water heater 1000. This not only significantly reduces the disassembly difficulty of the fan 200 and shortens the time required for disassembly, but also increases the application scenarios of the fan assembly 101, making it flexibly applicable in installation environments with relatively narrow space in the height direction.

[0058] Since the wind turbine assembly 101 adopts all the technical solutions of the volute assembly 100 of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0059] It is understood that in this embodiment of the invention, the second housing 120 is entirely made of plastic, and its strength is relatively weak. To avoid the possibility of the fan 200 compressing the mounting portion 121 and causing deformation of the second housing 120 when it is installed on the mounting portion 121, refer to... Figure 13 As shown, in this embodiment of the invention, the fan assembly 101 further includes an annular fixing plate 1011. The fixing plate 1011 is a metal part, and its strength is greater than that of the second housing 120. Based on this, the motor 210 is connected to the fixing plate 1011 via the sixth fastener 500, and the fixing plate 1011 is connected to the mounting part 121 via the fifth fastener 400, thereby realizing the installation of the fan 200.

[0060] Reference Figure 2 and Figure 4 As shown, an embodiment of the present invention also proposes a heat pump water heater 1000, which includes the fan assembly 101 of the above embodiment.

[0061] It is understandable that the heat pump water heater 1000 adopts the fan assembly 101 of the above embodiment. Through the modular design of the volute assembly 100, when the fan 200 fails, the second housing 120 can be disassembled separately to repair or replace the fan 200. This simplifies the disassembly process of the fan 200 and greatly improves the flexibility and ease of repair of the heat pump water heater 1000, thereby improving the maintenance efficiency of the heat pump water heater 1000. In addition, it also expands the application scenarios of the heat pump water heater 1000, enabling it to be flexibly applied in installation environments with relatively narrow vertical space.

[0062] Since the heat pump water heater 1000 adopts all the technical solutions of the fan assembly 101 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0063] Reference Figure 2 and Figure 4 As shown, in this embodiment of the invention, the heat pump water heater 1000 includes a housing 102, and the housing 102 has an inner cavity 1021 for accommodating functional components such as a fan assembly 101. One side of the housing 102 has an opening 1022 and a panel 1023. The opening 1022 communicates with the inner cavity 1021, and the panel 1023 is detachably installed in the opening 1022. For ease of description, the following description uses an example where the opening 1022 is located on the front side of the housing 102. In this embodiment, the fan assembly 101 is installed in the inner cavity 1021, and both the mounting port 113 and the opening 1022 face forward. Based on this, combined with... Figure 4 It can be understood that when disassembling the fan 200, the panel 1023 can be removed first, and then the second housing 120 can be separated from the fan assembly 101 and taken out from the opening 1022, which realizes the quick disassembly of the fan 200, omitting the step of disassembling the entire housing 102 and improving the maintenance efficiency of the fan 200.

[0064] Reference Figure 1 and Figure 2 As shown, in this embodiment of the invention, the bottom of the first housing 110 is provided with a support portion 190, which abuts against the chassis 1026 of the housing 102, thereby supporting the fan assembly 101 and improving the stability of the fan assembly 101.

[0065] Reference Figure 2 and Figure 14As shown, in this embodiment of the invention, the heat pump water heater 1000 further includes an evaporator 103, which is disposed on one side of the fan assembly 101, and the evaporator 103 and the fan assembly 101 are arranged side by side along the axial direction of the fan 200. Specifically, the evaporator 103 is located on one side of the air inlet 112, so that the airflow passing through the evaporator 103 can flow into the air duct 130 from the air inlet 112. In order to ensure the stability of the relative position between the air inlet 112 and the evaporator 103, in this embodiment, side plates 1031 are respectively provided on both sides of the evaporator 103, and the side plates 1031 extend along the arrangement direction of the first housing 110 and the evaporator 103. Correspondingly, a slot 1191 is provided at one end of the first housing 110 near the evaporator 103, and the slot 1191 also extends along the arrangement direction of the first housing 110 and the evaporator 103. The side plate 1031 is inserted into the slot 1191, which limits the position of the side plate 1031. The first housing 110 and the evaporator 103 are connected by the third fastener 180. The cooperation between the slot 1191 and the side plate 1031 improves the connection stability between the first housing 110 and the evaporator 103.

[0066] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A volute assembly, characterized in that, include: The first housing has an air outlet and an air inlet. A mounting port is provided on one side of the first housing, and the orientation of the mounting port is set at an angle to the height direction of the volute assembly. The second housing has a mounting part for installing a fan. The second housing is installed at the mounting port and is detachably connected to the first housing. The second housing and the first housing form an air duct, which connects the air inlet and the air outlet.

2. The volute assembly according to claim 1, characterized in that, The first housing is provided with a volute tongue. The air outlet and the volute tongue are arranged sequentially from top to bottom along the height direction of the first housing. Along the circumference of the first housing, the port of the mounting port is formed on the side of the volute tongue away from the air outlet.

3. The volute assembly according to claim 2, characterized in that, The first housing is provided with a guide groove, which extends from the port of the mounting port along the direction of the second housing toward the first housing, and the mounting part is provided with a guide plate that slides in cooperation with the guide groove.

4. The volute assembly according to claim 3, characterized in that, Along the axial direction of the air inlet, the air inlet and the guide groove are respectively located on opposite sides of the first housing. The guide groove is formed on the end face of the first housing facing the air inlet. The guide groove has a first wall and two second walls. The first wall is arranged along the height direction of the volute assembly. The two second walls are respectively connected to the two ends of the first wall and are configured to limit the guide plate in the height direction of the volute assembly. Each of the two second walls has a limiting block. The limiting block is spaced apart from the first wall to define a recess that slides with the edge of the guide plate.

5. The volute assembly according to claim 1, characterized in that, The end face of the mounting port is provided with a first sealing step, and the end face of the second housing facing the first housing is provided with a second sealing step. The first sealing step and the second sealing step are respectively arranged and sealed together along the circumference of the mounting port.

6. The volute assembly according to claim 1, characterized in that, The volute assembly includes a first snap-fit ​​structure and a first fastener. The first snap-fit ​​structure includes a first snap and a first latch that are interlocked. The first housing is provided with one of the first snap and the first latch, and the second housing is provided with the other of the first snap and the first latch. The first fastener is connected to the second housing and the first housing.

7. The volute assembly according to claim 1, characterized in that, The first housing includes a first housing portion and a second housing portion connected to each other. The first housing portion is provided with the air inlet. The top end of the first housing portion and the top end of the second housing portion surround to form the air outlet. The side wall of the first housing portion and the side wall of the second housing portion surround to form the mounting port.

8. The volute assembly according to claim 7, characterized in that, The first housing further includes a second snap-fit ​​structure and a second fastener. The second snap-fit ​​structure includes a second snap and a second latch that are interlocked. The first housing portion is provided with one of the second snap and the second latch, and the second housing portion is provided with the other of the second snap and the second latch. The second fastener is connected to the first housing portion and the second housing portion.

9. A fan assembly, characterized in that, It includes a fan and a volute assembly as described in any one of claims 1 to 8, wherein the fan is connected to the mounting portion.

10. The wind turbine assembly according to claim 9, characterized in that, The fan assembly also includes a fixing plate, which is a metal part. One end of the fixing plate is connected to the fan, and the other end is connected to the mounting part.

11. A heat pump water heater, characterized in that, Includes the wind turbine assembly as described in any one of claims 9 to 10.

12. The heat pump water heater according to claim 11, characterized in that, The heat pump water heater includes a housing with an inner cavity inside. The fan assembly is installed inside the inner cavity. One side of the housing has an opening and a panel. The opening communicates with the inner cavity. The panel is detachably connected to the opening. The mounting port faces the opening.

13. The heat pump water heater according to claim 11, characterized in that, The heat pump water heater includes an evaporator, which is arranged side by side with the fan assembly and located on one side of the air inlet. The evaporator is provided with a side plate. The first housing is provided with a slot at one end near the evaporator, and the side plate is inserted into the slot. The first housing and the evaporator are connected by a third fastener.

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