Volute assembly, fan assembly and heat pump water heater

Abstract

The utility model 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 scenes 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] The utility model relates to the technical field of electrical equipment, in particular to a volute component, a fan component and a heat pump water heater. Background Art

[0002] In the related art, the volute assembly of the heat pump water heater is usually designed to be detachable so that the internal components can be repaired or replaced when necessary. However, in actual applications, when the fan of the heat pump water heater fails, the maintenance personnel first need to remove the entire outer shell of the heat pump water heater, and then further disassemble the first shell with the fan installed from the volute assembly in the height direction. This process is not only time-consuming and laborious, but also difficult to separate the first shell with the fan installed in the use environment with a narrow space in the height direction. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a volute assembly, which can simplify the maintenance process of the fan and improve the disassembly and assembly efficiency of the fan.

[0004] The utility model also provides a fan assembly and a heat pump water heater comprising the volute assembly.

[0005] According to the first aspect of the present invention, the volute assembly includes: 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, the orientation of the mounting port is set at an angle with the height direction of the volute assembly; the second shell is provided with a mounting portion for mounting a fan, the second shell is mounted on the mounting port and is detachably connected to the first shell, the second shell and the first shell are constructed to form an air duct, and the air duct connects the air inlet and the air outlet.

[0006] The volute assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0007] The volute assembly of the utility model embodiment is provided with an installation opening on one side of the first shell, and the second shell is installed in the installation opening and is detachably connected to the first shell, wherein the second shell is provided with a mounting portion for installing the fan. Through the modular design of the volute assembly, when the fan fails, it is only necessary to disassemble the second shell alone to repair or replace the fan, thereby simplifying the disassembly process of the fan, greatly improving the flexibility and repair convenience of the volute assembly, and thus improving the maintenance efficiency of the fan; in addition, the orientation of the installation opening is set at an angle to the height direction of the volute assembly, and therefore the disassembly operation of the second shell does not need to be performed in the height direction of the volute assembly. Compared with the fan that can only be loaded and unloaded on the upper side of the heat pump water heater, the volute assembly of this embodiment can be disassembled on the side of the heat pump water heater, which not only significantly reduces the difficulty of disassembling the fan and shortens the time required for disassembling the fan, but also increases the application scenarios of the volute assembly, so that it can be flexibly applied to installation environments with relatively narrow space in the height direction.

[0008] According to some embodiments of the utility model, the first shell 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 shell, and along the circumference of the first shell, the port of the installation port is formed on the side of the volute tongue away from the air outlet.

[0009] According to some embodiments of the utility model, the first shell is provided with a guide groove, and the guide groove is extended from the end of the installation port along the direction of the second shell toward the first shell, and the installation part is provided with a guide plate that slides with the guide groove.

[0010] According to some embodiments of the utility model, along the axial direction of the air inlet, the air inlet and the guide groove are respectively arranged on opposite sides of the first shell, and the guide groove is formed on the end surface of the first shell facing the air inlet, and the guide groove is provided with 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 constructed to limit the guide plate in the height direction of the volute assembly, the two second walls are respectively provided with limit blocks, and the limit blocks are spaced apart from the first wall to define a recessed portion slidably connected to the edge of the guide plate.

[0011] According to some embodiments of the utility model, the end surface of the installation port is provided with a first sealing step, and the end surface of the second shell facing the first shell is provided with a second sealing step, and the first sealing step and the second sealing step are respectively arranged along the circumference of the installation port and are sealed and connected.

[0012] According to some embodiments of the utility model, 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 buckle position that are buckled into each other, the first shell is provided with one of the first snap and the first buckle position, the second shell is provided with the other of the first snap and the first buckle position, and the first fastener is connected to the second shell and the first shell.

[0013] According to some embodiments of the utility model, the first shell includes a first shell portion and a second shell portion connected to each other, the first shell portion is provided with the air inlet, the top end of the first shell portion and the top end of the second shell portion are arranged to form the air outlet, and the side wall of the first shell portion and the side wall of the second shell portion are arranged to form the installation port.

[0014] According to some embodiments of the utility model, the first shell also includes a second snap-fit ​​structure and a second fastener, the second snap-fit ​​structure includes a second snap and a second buckle position that are buckled into each other, the first shell portion is provided with one of the second snap and the second buckle position, the second shell portion is provided with the other of the second snap and the second buckle position, and the second fastener is connected to the first shell portion and the second shell portion.

[0015] The fan assembly according to the second embodiment of the utility model comprises a fan and the volute assembly described in the first embodiment, wherein the fan is connected to the mounting portion.

[0016] The fan assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0017] The fan assembly adopts the volute assembly of the first aspect of the embodiment, and the fan is installed on the installation part. Through the modular design of the volute assembly, when the fan fails, it is only necessary to disassemble the second shell alone to repair or replace the fan, which simplifies the disassembly process of the fan and greatly improves the flexibility and convenience of repair of the fan assembly, thereby improving the maintenance efficiency of the fan; 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 shell does not need to be performed in the height direction of the volute assembly. Compared with only being able to load and unload the fan on the upper side of the heat pump water heater, the fan assembly of this embodiment can be disassembled on the side of the heat pump water heater, which not only significantly reduces the difficulty of disassembling the fan and shortens the time required for disassembly of the fan, but also increases the application scenarios of the fan assembly, so that it can be flexibly used in installation environments with relatively narrow space in the height direction.

[0018] According to some embodiments of the present utility model, the fan assembly further includes a fixing plate, which is a metal piece, one end of which is connected to the fan, and the other end of which is connected to the mounting portion.

[0019] The heat pump water heater according to the embodiment of the third aspect of the utility model comprises the fan assembly described in the embodiment of the second aspect.

[0020] The heat pump water heater according to the embodiment of the utility model has at least the following beneficial effects:

[0021] The heat pump water heater adopts the fan assembly of the second aspect of the embodiment. Through the modular design of the volute assembly, when the fan fails, the fan can be repaired or replaced by simply disassembling the second shell alone, which simplifies the disassembly process of the fan and greatly improves the flexibility and convenience of repair of the heat pump water heater, thereby improving the maintenance efficiency of the heat pump water heater; in addition, the application scenarios of the heat pump water heater are increased, so that it can be flexibly used in installation environments with relatively narrow space in the height direction.

[0022] According to some embodiments of the utility model, the heat pump water heater includes a box body, an inner cavity is provided in the box body, the fan assembly is installed in the inner cavity, an opening and a panel are provided on one side of the box body, the opening is connected to the inner cavity, the panel is detachably connected to the opening, and the installation port is arranged toward the opening.

[0023] According to some embodiments of the utility model, the heat pump water heater includes an evaporator, which is arranged side by side with the fan assembly and is located on one side of the air inlet. The evaporator is provided with a side panel, and a slot is provided at one end of the first shell close to the evaporator, and the side panel is inserted into the slot, and the first shell and the evaporator are connected by a third fastener.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a structural schematic diagram of a volute assembly according to an embodiment of the utility model;

[0027] Figure 2 A partial exploded view of a heat pump water heater according to an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of a fan assembly according to an embodiment of the utility model when the second housing is disassembled;

[0029] Figure 4 This is a schematic diagram of a heat pump water heater according to an embodiment of the utility model when the second shell is disassembled;

[0030] Figure 5 A front view of a volute assembly according to an embodiment of the present utility model;

[0031] Figure 6 for Figure 5 Sectional view in the AA direction;

[0032] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0033] Figure 8 for Figure 5 Cross-sectional view in CC direction;

[0034] Fig. 9 for Figure 8 A partial enlarged view of point D in the middle;

[0035] Fig.10 This is a schematic structural diagram of a second housing according to an embodiment of the utility model;

[0036] Fig.11 for Figure 1 Partial cross-sectional view at point E;

[0037] Fig.12 This is an exploded schematic diagram of a first housing according to an embodiment of the utility model;

[0038] Fig.13 This is an exploded schematic diagram of a second housing and a fan in one embodiment of the utility model;

[0039] Fig.14 for Figure 2 A partial enlarged view of point F in the middle.

[0040] Figure Number:

[0041] Heat pump water heater 1000;

[0042] Fan assembly 101; fixing plate 1011;

[0043] Box body 102; inner cavity 1021; opening 1022; panel 1023; air inlet 1024; air outlet 1025; chassis 1026;

[0044] Evaporator 103; side plate 1031;

[0045] Volute assembly 100;

[0046] 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; stopper 116; recess 1161; first sealing step 117; first housing 118; bending section 1181; second housing 119; slot 1191;

[0047] The second housing 120; the mounting portion 121; the guide plate 122; the second sealing step 123;

[0048] Air duct 130; first surrounding edge 131; second surrounding edge 132;

[0049] First clamping structure 140; first buckle 141; first buckle position 142;

[0050] First fastener 150; first through hole 151; first connecting hole 152;

[0051] The second snap-fit ​​structure 160; the second snap buckle 161; the second buckle position 162;

[0052] Second fastener 170; second through hole 171; second connection hole 172;

[0053] A third fastener 180; a support portion 190;

[0054] Fan 200; Motor 210; Wind wheel 220;

[0055] The fourth fastening member 300 ; the fifth fastening member 400 ; and the sixth fastening member 500 . DETAILED DESCRIPTION

[0056] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0057] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0059] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0060] It is understandable that in order to improve the maintainability and flexibility of the heat pump water heater, the volute assembly of the existing heat pump water heater is generally composed of at least two first shells, and the whole adopts a detachable design. However, although the detachable design improves the convenience of maintenance to a certain extent, in actual application, when the fan of the heat pump water heater fails and needs to be repaired or replaced, the maintenance personnel still need to remove the entire outer shell of the heat pump water heater before they can disassemble the first shell with the fan installed. This process is not only cumbersome and difficult to operate, but also requires tedious reinstallation after the maintenance is completed, which increases the overall maintenance cycle and complexity.

[0061] In addition, the existing volute assembly is usually arranged in the height direction, which means that when disassembling the first housing of the fan, the disassembly operation needs to be performed in the height direction. Based on this, in an environment where the space is narrow in the height direction, it is difficult to separate the first housing where the fan is installed. Furthermore, since it is often necessary to reserve a large maintenance space in the height direction during design to ensure that maintenance personnel have sufficient operating space, this further leads to a waste of installation space and also limits the application scope of the heat pump water heater.

[0062] For this purpose, refer 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, wherein the heat pump water heater 1000 includes a box body 102, the box body 102 is a hollow structure, and an inner cavity 1021 is provided inside the box body, and the volute assembly 100 is disposed in the inner cavity 1021, and the specific reference is made to Figures 1 to 14 A volute assembly 100 is shown for illustration.

[0063] Reference Figure 1 and Figure 3As shown, in the embodiment of the utility model, the volute assembly 100 includes a first shell 110 and a second shell 120, which are connected to each other and can form a complete volute structure, and the first shell 110 and the second shell 120 cooperate to form an air duct 130. When it is necessary to inspect or maintain the inside of the volute structure, the first shell 110 and the second shell 120 can be directly separated. This modular design not only enhances the flexibility of the volute assembly 100, so that it can adapt to different maintenance requirements, but also improves the repair convenience of the volute assembly 100, shortens the maintenance time, and reduces the difficulty of operation.

[0064] Combination Figure 3 As shown, in the embodiment of the utility model, the second housing 120 is provided with a mounting portion 121, and the fan 200 can be mounted on the mounting portion 121 in a detachable connection manner. For example, the fan 200 and the mounting portion 121 can be connected by screws, or by snap-fit ​​connection, or by other forms of connection to achieve detachable connection, which is not limited in this embodiment.

[0065] Specifically, refer to Figure 1 and Figure 3 As shown, in the embodiment of the present utility model, the air outlet 111 and the air inlet 112 of the air duct 130 are both arranged in the first housing 110, wherein the air inlet 112 is the entrance of the air duct 130, and the air outlet 111 is the outlet of the air duct 130. Figure 2 It can be understood from the figure that in this embodiment, the air outlet 111 of the volute assembly 100 is interconnected with the air outlet 1025 of the box body 102. In this embodiment, the box body 102 is provided with an air inlet 1024 and an air outlet 1025, and the air inlet 1024 and the air outlet 1025 are arranged side by side. When the volute assembly 100 is assembled in the inner cavity 1021 of the box body 102, the volute assembly 100 is located on a side of the inner cavity 1021 close 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 box body 102.

[0066] Reference Figure 3 As shown, in the embodiment of the utility model, a mounting opening 113 is provided on one side of the first housing 110, and the size and shape of the mounting opening 113 match 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, nuts, etc., or by a snap-fit ​​structure, or by other forms of connection to achieve detachable connection.

[0067] In order to disassemble the second housing 120 in a direction other than the height direction of the volute assembly 100, refer to Figure 3 As shown, in the embodiment of the utility model, the orientation of the mounting opening 113 is set to be set at an angle with the height direction of the volute assembly 100, that is, the orientation of the mounting opening 113 is not upward or downward. In one example, the orientation of the mounting opening 113 can be set forward in the horizontal direction; in another example, the orientation of the mounting opening 113 can be set forward and tilted upward.

[0068] It is understandable that the orientation of the installation opening 113 is set at an angle with the height direction of the volute assembly 100 so that the disassembly direction of the second housing 120 is not in the height direction of the volute assembly 100. Figure 4 It can be understood that when the volute assembly 100 is assembled in the inner cavity 1021 of the box body 102, the second shell 120 can be disassembled and assembled from the side of the box body 102. Compared with only being able to load and unload the fan 200 on the upper side of the heat pump water heater 1000, disassembling the second shell 120 on the side of the box body 102 not only significantly reduces the difficulty of disassembling the fan 200 and shortens the time required to disassemble the fan 200, but also increases the application scenarios of the volute assembly 100, so that it can be flexibly used in installation environments with relatively narrow space in the height direction.

[0069] Reference Figure 1 and Figure 3 As shown, in the embodiment of the utility model, the first shell 110 is formed with a volute tongue 114 for dividing the airflow. Along the height direction of the first shell 110, the air outlet 111 and the volute tongue 114 are arranged from top to bottom. The arrangement of the volute tongue 114 can make part of the airflow flow smoothly to the air outlet 111. Based on this, in order to prevent the installation port 113 from damaging the structure of the volute tongue 114, in this embodiment, along the circumference of the first shell 110, the port 1131 of the installation port 113 is arranged on the side of the volute tongue 114 away from the air outlet 111. Figure 5 It can be understood that, along the left-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 installation port 113 is located on the right side of the volute tongue 114 .

[0070] It can be understood that in the embodiment of the present utility model, Figure 5 The left and right directions in Figure 4Based on the front-to-back direction of the housing 102 in the embodiment, the installation opening 113 is oriented forward in the horizontal direction. When the fan 200 fails, the maintenance personnel can stand in front of the housing 102 and pull the second housing 120 from the back to the front to separate the second housing 120 from the first housing 110; when reassembling the fan 200, the maintenance personnel can also stand in front of the housing 102 and push the second housing 120 from the front to the back to connect the second housing 120 to the first housing 110. Compared with disassembling the second housing 120 in the height direction of the volute assembly 100, the convenience of disassembling and assembling the second housing 120 is significantly improved, and the difficulty of operation for maintenance personnel is reduced.

[0071] In order to further improve the efficiency of disassembly and assembly of the fan 200, refer to Figure 3 As shown, in the embodiment of the utility model, the first shell 110 is provided with a guide groove 115 with a notch facing the second shell 120, and the second shell 120 is provided with a guide plate 122 corresponding to the guide groove 115. The guide groove 115 is extended from the port 1131 of the mounting port 113 in the direction from the second shell 120 to the first shell 110, and the guide groove 115 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 with the guide groove 115, so that the guide plate 122 can slide along the line connecting the second shell 120 and the first shell 110. In this embodiment, the guide plate 122 can be protruded from the end surface of the second shell 120 facing the first shell 110, specifically, the end of the end surface of the second shell 120 facing the first shell 110 away from the air inlet 112 protrudes toward the first shell 110 to form the guide plate 122. In one example, the overall shape of the guide groove 115 and the guide plate 122 is square.

[0072] Specifically, the installation opening 113 is oriented forward in the horizontal direction as an example for description. Figure 8 and Fig. 9 As shown, when the second shell 120 is disassembled, the second shell 120 moves from back to front, based on this, the guide plate 122 slides from the guide groove 115 from back to front, and the cooperation of the guide plate 122 and the guide groove 115 plays a guiding role in the disassembly of the second shell 120, which facilitates maintenance personnel to separate the second shell 120 from the first shell 110, and also reduces the possibility of the second shell 120 colliding with other components due to the skewed disassembly direction, thereby reducing the risk of damage to the volute assembly 100 during the disassembly of the fan 200.

[0073] Continue to refer to Figure 8 and Fig. 9As shown, when assembling the second shell 120, the second shell 120 moves from front to back, based on this, the guide plate 122 enters the guide groove 115 from the notch of the guide groove 115, and slides from front to back along the guide groove 115. The cooperation between the guide plate 122 and the guide groove 115 plays a guiding role in the assembly of the second shell 120, which makes it convenient for maintenance personnel to align the second shell 120 with the first shell 110 and connect the two, and also reduces the possibility of assembly failure due to the skewed disassembly direction of the second shell 120 or deformation caused by extrusion with other components.

[0074] Reference Figure 3 and Figure 4 As shown, in order to prevent the guide plate 122 from blocking the air inlet 112 when the first shell 110 and the second shell 120 are connected, in the embodiment of the utility model, the air inlet 112 and the guide groove 115 are respectively arranged on opposite sides of the first shell 110 along the axial direction of the air inlet 112. Figure 6 and Figure 7 It can be understood that the guide groove 115 is formed on the end surface of the first housing 110 facing the air inlet 112. Specifically, the end surface of the first housing 110 is recessed in the direction away from the air inlet 112 and forms the guide groove 115. It should be noted that the guide groove 115 can be formed only on the end surface of the first housing 110 facing the air inlet 112, or the end surface of the first housing 110 away from the air inlet 112 is protruded away from the air duct 130 so that the guide groove 115 is formed on the end surface 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 be inserted into the guide groove 115, thereby improving the space utilization rate in the air duct 130.

[0075] Reference Figure 7 As shown, in the embodiment of the utility model, the guide groove 115 is formed by a first wall surface 1151 and two second wall surfaces 1152, wherein the first wall surface 1151 and the second wall surface 1152 are both formed by the end surface of the first housing 110 facing the air inlet 112. Specifically, the first wall surface 1151 is extended along the height direction of the volute assembly 100, 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 surface 1152 is extended along the left and right direction. The end of the second wall surface 1152 away from the first wall surface 1151 is provided with a stopper 116 extending along the height direction of the volute assembly 100. It can be understood that in this embodiment, the stopper 116 located on the relatively upper side protrudes downward, and the stopper 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.

[0076] Reference Figure 7 As shown, in the embodiment of the utility model, a recess 1161 is defined between the stop block 116 and the first wall surface 1151, and the recess 1161 is a part of the guide groove 115. The two recesses 1161 are respectively located at the two 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 guiding the guide plate 122.

[0077] Combination Figure 7 and Fig. 9 As shown, in the embodiment of the utility model, when the guide plate 122 is inserted into the guide groove 115, the two second walls 1152 are respectively located on the upper side and the lower side of the guide plate 122. Based on this, the two second walls 1152 cooperate to limit the displacement of the guide plate 122 in the height direction of the volute assembly 100, thereby realizing the limit of the guide plate 122 in the up and down direction. Since the limit block 116 and the first wall 1151 are arranged at intervals along the axial direction of the fan 200, based on this, the two limit blocks 116 and the first wall 1151 are respectively located on the left and right sides of the guide plate 122. The two limit blocks 116 cooperate with the first wall 1151 to limit the displacement of the guide plate 122 in the axial direction of the fan 200, thereby realizing the limit of the guide plate 122 in the left and right directions, improving the connection stability of the first shell 110 and the second shell 120, and ensuring the sealing of the air duct 130.

[0078] Reference Fig. 9 As shown, in an embodiment of the utility model, a baffle 1153 extending in the left-right direction is provided at the rear end of the first wall 1151, and the baffle 1153 can abut against the guide plate 122, thereby limiting the guide plate 122 from further moving backward, thereby preventing the second shell 120 from continuing to move toward the first shell 110, and reducing the possibility of the second shell 120 squeezing the first shell 110.

[0079] It can be understood that in the embodiment of the present utility model, the first shell 110 and the second shell 120 are connected to each other to form the air duct 130. Based on this, in order to reduce the possibility of the airflow in the air duct 130 leaking from the gap between the first shell 110 and the second shell 120, that is, from the port 1131 of the installation port 113, refer to Figure 3 and Fig.10As shown, the end surface of the first shell 110 close to the second shell 120, that is, the end surface of the installation opening 113 is provided with a first sealing step 117, and correspondingly, the end surface of the second shell 120 facing the first shell 110 is provided with a second sealing step 123 matching the first sealing step 117. Specifically, the first sealing step 117 and the second sealing step 123 are respectively extended along the circumference of the installation opening 113.

[0080] Combination Fig.11 It can be understood that in the embodiment of the utility model, when the first shell 110 and the second shell 120 are connected, the first sealing step 117 and the second sealing step 123 are staggered and overlapped, thereby realizing a sealed connection between the first sealing step 117 and the second sealing step 123, improving the sealing effect of the first shell 110 and the second shell 120, and ensuring the air tightness of the air duct 130.

[0081] Reference Figure 1 and Figure 3 As shown, in the embodiment of the utility model, the first shell 110 and the second shell 120 are pre-connected by the first clamping structure 140, and then the first shell 110 and the second shell 120 are fastened and connected by the first fastener 150. Specifically, the first clamping structure 140 includes a first buckle 141 and a first buckle position 142, wherein the first buckle 141 is provided at one of the first shell 110 and the second shell 120, and the first buckle position 142 is provided at the other of the first shell 110 and the second shell 120, and the buckling of the first buckle 141 and the first buckle position 142 realizes the pre-connection of the first shell 110 and the second shell 120.

[0082] It is understandable that when assembling the second housing 120, the second housing 120 can be first pushed into the installation opening 113, and the first buckle 141 and the first buckle position 142 are buckled during the pushing process, thereby achieving the positioning of the second housing 120. On this basis, the first housing 110 and the second housing 120 are fastened and connected by the first fastener 150, which can not only reduce the difficulty of assembling the second housing 120, but also improve the assembly efficiency and accuracy of the second housing 120, thereby improving the sealing of the air duct 130.

[0083] Reference Figure 3As shown, taking the example that the first buckle 141 is arranged on the first shell 110 and the first buckle position 142 is arranged on the second shell 120, in the embodiment of the utility model, the first buckle 141 is arranged on one side of the port 1131 of the installation port 113, and the first buckle 141 protrudes toward the second shell 120. Correspondingly, the first buckle position 142 is arranged on the end surface of the second shell 120 facing the first shell 110, and the first buckle position 142 is provided with a through slot, and the first buckle 141 is engaged with the first buckle position 142 after passing through the through slot. The second shell 120 is provided with a first through hole 151, and the first shell 110 is provided with a first connecting hole 152 communicating with the first through hole 151, and the first fastener 150 passes through the first through hole 151 and the first connecting hole 152 in sequence to realize the fastening connection between the first shell 110 and the second shell 120.

[0084] It should be noted that, in the embodiment of the utility model, 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 the convenience of description, the first fastener 150 is taken as an example for description. In one example, the first fastener 150 is a screw, and the first connection hole 152 is a screw hole that can be threaded with the screw. Based on this, the first fastener 150 can be inserted into the first through hole 151 and cooperate with the screw hole of the first shell 110 to achieve a fastening connection in a 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 connection hole 152 can be selected and set according to actual conditions, and this embodiment does not limit this.

[0085] In order to further realize the modular design of the volute assembly 100, refer to Figure 3 and Fig.12 As shown, in the embodiment of the utility model, the first shell 110 includes a first shell portion 118 and a second shell portion 119, and the first shell portion 118 and the second shell portion 119 are detachably connected. Among them, the air inlet 112 is arranged on the end surface of the first shell portion 118 extending along the height direction of the volute assembly 100. The top of the first shell portion 118 and the top of the second shell portion 119 are arc-shaped structures respectively. When the first shell portion 118 and the second shell portion 119 are connected to each other, the top of the first shell portion 118 and the top of the second shell portion 119 can be surrounded to form an air outlet 111.

[0086] Specifically, refer to Fig.12As shown, in the embodiment of the utility model, the first shell 118 protrudes toward the end surface of the second shell 119 to form a first surrounding edge 131, and correspondingly, the second shell 119 protrudes toward the end surface of the first shell 118 to form a second surrounding edge 132, and the first surrounding edge 131 and the second surrounding edge 132 are arranged opposite to each other. When the first shell 118 and the second shell 119 are connected to each other, the first surrounding edge 131 and the second surrounding edge 132 are sealed and connected, so as to form the air duct 130, and the first surrounding edge 131 and the second surrounding edge 132 serve as the inner wall of the air duct 130 to guide the flow.

[0087] Reference Figure 3 As shown, in the embodiment of the utility model, the installation opening 113 is square as a whole, wherein the side wall of the second shell portion 119 is formed with a bending section 1181. When the first shell portion 118 and the second shell portion 119 are connected to each other, the bending section 1181 and the end surface of the first shell portion 118 extending along the height direction of the volute assembly 100 are surrounded to form the installation opening 113.

[0088] Reference Figure 5 As shown, in the embodiment of the utility model, the first shell 118 and the second shell 119 are pre-connected by the second clamping structure 160, and then the first shell 118 and the second shell 119 are fastened and connected by the second fastener 170. Specifically, the second clamping structure 160 includes a second buckle 161 and a second buckle position 162, wherein the second buckle 161 is provided at one of the first shell 118 and the second shell 119, and the second buckle position 162 is provided at the other of the first shell 118 and the second shell 119, and the buckling of the second buckle 161 and the second buckle position 162 realizes the pre-connection of the first shell 118 and the second shell 119.

[0089] It is understandable that when assembling the first shell 110, the first shell portion 118 can be pushed toward the second shell portion 119, and the second buckle 161 and the second buckle position 162 are buckled during the pushing process, thereby achieving the positioning of the first shell portion 118. On this basis, the first shell portion 118 and the second shell portion 119 are fastened and connected by the second fastener 170, which can not only reduce the difficulty of assembling the first shell 110, but also improve the assembly efficiency and accuracy of the first shell 110, thereby improving the sealing of the air duct 130.

[0090] Reference Figure 5 and Fig.12As shown, taking the second buckle 161 being provided on the first shell 118 and the second buckle position 162 being provided on the second shell 119 as an example, in the embodiment of the utility model, the second buckle 161 is provided on the side wall of the first shell 118, and the second buckle 161 protrudes toward the second shell 119. Correspondingly, the second buckle position 162 is provided on the side wall of the second shell 119, and the second buckle position 162 is provided with a through slot, and the second buckle 161 is engaged with the second buckle position 162 after passing through the through slot. The second shell 119 is provided with a second through hole 171, and the first shell 118 is provided with a second connecting hole 172 communicating with the second through hole 171, and the second fastener 170 passes through the second through hole 171 and the second connecting hole 172 in sequence to realize the fastening connection between the first shell 118 and the second shell 119.

[0091] Reference Figure 3 As shown, the embodiment of the utility model further provides a fan assembly 101, which includes a fan 200 and a 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 combination with Fig.13 As can be understood from the figure, the wind turbine 200 includes a motor 210 and a wind wheel 220 , wherein the wind 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 portion 121 .

[0092] It can be understood that the fan assembly 101 adopts the volute assembly 100 of the above-mentioned embodiment. Through the modular design of the volute assembly 100, it is achieved that when the fan 200 fails, only the second shell 120 needs to be disassembled separately to repair or replace the fan 200, which 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, so the disassembly operation of the second shell 120 does not need to be performed in the height direction of the volute assembly 100. Compared with the fan 200 that can only be loaded and unloaded 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, which 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 fan assembly 101, so that it can be flexibly applied to installation environments with relatively narrow space in the height direction.

[0093] Since the fan assembly 101 adopts all the technical solutions of the volute assembly 100 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0094] It is understandable that in the embodiment of the present utility model, the second housing 120 is entirely made of plastic, and its strength is relatively weak. In order to avoid the possibility of squeezing the mounting portion 121 and causing the second housing 120 to deform when the fan 200 is installed on the mounting portion 121, refer to Fig.13 As shown, in the embodiment of the utility model, the fan assembly 101 further includes a circular fixing plate 1011, which is a metal part and has a stronger strength than the second housing 120. Based on this, the motor 210 is connected to the fixing plate 1011 through the sixth fastener 500, and the fixing plate 1011 is connected to the mounting portion 121 through the fifth fastener 400, thereby achieving the installation of the fan 200.

[0095] Reference Figure 2 and Figure 4 As shown, the embodiment of the present utility model further provides a heat pump water heater 1000, which includes the fan assembly 101 of the above embodiment.

[0096] It can be understood that the heat pump water heater 1000 adopts the fan assembly 101 of the above-mentioned embodiment. Through the modular design of the volute assembly 100, when the fan 200 fails, it is only necessary to disassemble the second shell 120 alone to repair or replace the fan 200, thereby simplifying the disassembly process of the fan 200, greatly improving the flexibility and repair convenience of the heat pump water heater 1000, thereby improving the maintenance efficiency of the heat pump water heater 1000; in addition, the application scenarios of the heat pump water heater 1000 are also increased, so that it can be flexibly used in installation environments with relatively narrow space in the height direction.

[0097] Since the heat pump water heater 1000 adopts all the technical solutions of the fan assembly 101 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0098] Reference Figure 2 and Figure 4 As shown, in the embodiment of the utility model, the heat pump water heater 1000 includes a housing 102, and an inner cavity 1021 for accommodating functional components such as a fan assembly 101 is provided inside the housing 102. Among them, an opening 1022 and a panel 1023 are provided on one side of the housing 102, and the opening 1022 is connected to the inner cavity 1021, and the panel 1023 is detachably installed on the opening 1022. For the convenience of description, the following description is taken as an example that the opening 1022 is opened on the front side of the housing 102. In this embodiment, the fan assembly 101 is installed in the inner cavity 1021, and the installation port 113 and the opening 1022 are both arranged forward. Based on this, combined with Figure 4It can be understood that when disassembling the fan 200, the panel 1023 can be removed first, and then the second shell 120 can be separated from the fan assembly 101 and taken out from the opening 1022, thereby realizing the rapid disassembly of the fan 200, omitting the step of disassembling the entire box body 102, and improving the maintenance efficiency of the fan 200.

[0099] Reference Figure 1 and Figure 2 As shown, in the embodiment of the utility model, a support portion 190 is provided at the bottom of the first shell 110 , and the support portion 190 abuts against the bottom plate 1026 of the box body 102 , thereby supporting the fan assembly 101 and improving the stability of the fan assembly 101 .

[0100] Reference Figure 2 and Fig.14 As shown, in the embodiment of the utility model, the heat pump water heater 1000 further includes an evaporator 103, and the evaporator 103 is arranged 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, based on which, 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 the 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 shell 110 and the evaporator 103. Correspondingly, a card slot 1191 is provided at one end of the first shell 110 close to the evaporator 103, and the card slot 1191 is also extended along the arrangement direction of the first shell 110 and the evaporator 103. The side plate 1031 is inserted into the slot 1191, which limits 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.

[0101] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A volute assembly, characterized in that: include: A first shell is provided with an air outlet and an air inlet, and a mounting opening is provided on one side of the first shell, and the mounting opening is arranged at an angle with the height direction of the volute assembly; The second shell is provided with a mounting portion for mounting a fan. The second shell is mounted on the mounting opening and is detachably connected to the first shell. The second shell and the first shell are constructed to form an air duct, and the air duct connects the air inlet and the air outlet.

2. The volute assembly according to claim 1, characterized in that: The first shell is provided with a volute tongue, and the air outlet and the volute tongue are arranged in sequence from top to bottom along the height direction of the first shell. Along the circumference of the first shell, the port of the installation 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 shell is provided with a guide groove, and the guide groove is extended from the end of the installation port along the direction of the second shell toward the first shell, and the installation part is provided with a guide plate that slidably cooperates 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 arranged on opposite sides of the first shell, and the guide groove is formed on the end surface of the first shell facing the air inlet, and the guide groove is provided with 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 constructed to limit the guide plate in the height direction of the volute assembly, the two second walls are respectively provided with limit blocks, and the limit blocks are spaced apart from the first wall to define a recessed portion slidably connected to the edge of the guide plate.

5. The volute assembly according to claim 1, characterized in that: The end surface of the installation opening is provided with a first sealing step, and the end surface of the second shell facing the first shell is provided with a second sealing step. The first sealing step and the second sealing step are respectively arranged along the circumference of the installation opening and are sealed and connected.

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 buckle position that are buckled into each other, the first shell is provided with one of the first snap and the first buckle position, the second shell is provided with the other of the first snap and the first buckle position, and the first fastener is connected to the second shell and the first shell.

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

8. The volute assembly according to claim 7, characterized in that: The first shell also includes a second snap-fit ​​structure and a second fastener, the second snap-fit ​​structure includes a second snap and a second buckle position that are buckled into each other, the first shell portion is provided with one of the second snap and the second buckle position, the second shell portion is provided with the other of the second snap and the second buckle position, and the second fastener is connected to the first shell portion and the second shell portion.

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

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

11. A heat pump water heater, characterized in that: The fan assembly comprises the fan assembly according to 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 box body, an inner cavity is provided in the box body, the fan assembly is installed in the inner cavity, an opening and a panel are provided on one side of the box body, the opening is connected to the inner cavity, the panel is detachably connected to the opening, and the installation port is arranged toward 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 is located on one side of the air inlet. The evaporator is provided with a side panel, and a slot is provided at one end of the first shell close to the evaporator. The side panel is inserted into the slot, and the first shell and the evaporator are connected by a third fastener.

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