A duct machine

Abstract

The present invention discloses a duct machine, which relates to the technical field of air conditioning. The duct machine includes a shell, an air outlet mechanism, an evaporator assembly and a volute fixing plate. The shell includes a top cover plate and a bottom plate that are arranged opposite to each other, the volute fixing plate is arranged between the top cover plate and the bottom plate to separate the shell into a first cavity and a second cavity, the air outlet mechanism is arranged in the first cavity, the evaporator assembly is arranged in the second cavity, the shell is provided with an outlet, the outlet is connected to the first cavity, the top cover plate is provided with a fixing portion in the first cavity, the fixing portion is provided with a first threaded hole, the volute fixing plate is provided with a connecting portion, the connecting portion is provided with a first through hole, the first through hole is used for screws to pass through, and the first threaded hole is used to cooperate with the screws to fix the relative positions of the volute fixing plate and the top cover plate. The duct machine provided by the present invention can conveniently and quickly disassemble and assemble the evaporator assembly to improve maintenance efficiency, reduce maintenance costs, avoid breaking the top, and enhance user experience.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to an air duct unit. Background Art

[0002] At present, in the application of ducted air conditioners, it is difficult to dismantle the evaporator of traditional ducted air conditioners due to the limited space of the inspection port and the problem of evaporator assembly method. If the evaporator needs to be dismantled for maintenance, the roof must be broken (the ceiling of the room is broken), which affects the layout of the customer's room, the user experience is extremely poor, the operation is difficult, and the maintenance cost is extremely high. Summary of the invention

[0003] The problem solved by the present invention is how to conveniently and quickly disassemble and assemble the evaporator assembly to improve maintenance efficiency, reduce maintenance costs, avoid top damage, and improve user experience.

[0004] To solve the above problems, the technical solution of the present invention is achieved as follows:

[0005] The present invention provides a duct machine, including a shell, an air outlet mechanism, an evaporator assembly and a volute fixing plate, the shell including a top cover plate and a bottom plate arranged opposite to each other, the volute fixing plate being arranged between the top cover plate and the bottom plate to separate the shell into a first cavity and a second cavity, the air outlet mechanism being arranged in the first cavity, the evaporator assembly being arranged in the second cavity, the shell being provided with an outlet, the outlet being communicated with the first cavity, the top cover plate being provided with a fixing portion in the first cavity, the fixing portion being provided with a first threaded hole, the volute fixing plate being provided with a connecting portion, the connecting portion being provided with a first through hole, the first through hole being used for screws to pass through, the first threaded hole being used for cooperating with the screws to fix the relative positions of the volute fixing plate and the top cover plate. Compared with the prior art, the duct machine provided by the present invention can conveniently and quickly disassemble and assemble the evaporator assembly because it adopts a fixing portion arranged in the first cavity and an outlet being communicated with the first cavity, so as to improve maintenance efficiency, reduce maintenance costs, avoid breaking the top, and enhance user experience.

[0006] Furthermore, the connecting portion is bent, the fixing portion is concave, and the connecting portion cooperates with the fixing portion to align the first through hole with the first threaded hole, so as to facilitate the assembly and fixing of the volute fixing plate and the top cover plate.

[0007] Furthermore, a limiting groove is provided at the bottom of the volute fixing plate, and a positioning insert is provided on the chassis, which extends into the limiting groove and cooperates with the limiting groove to fix the relative position of the volute fixing plate and the chassis, and prevent the volute fixing plate from being displaced relative to the chassis.

[0008] Furthermore, the positioning plug is provided with a guiding inclined surface, and the guiding inclined surface is used to slide relative to the volute fixing plate, so as to reduce the friction resistance of the positioning plug and the limiting groove, and facilitate the positioning plug to be inserted into the limiting groove.

[0009] Furthermore, a second through hole is provided at the bottom of the volute fixing plate, and a second threaded hole is provided at the chassis, the second through hole is used for a second screw to pass through, and the second threaded hole is used to cooperate with the screw to fix the relative position of the volute fixing plate and the chassis, and further prevent the volute fixing plate from being displaced relative to the chassis.

[0010] Furthermore, the duct unit further includes a water receiving pan, which includes a pan body and a support member, the support member is fixedly connected to the pan body, the evaporator assembly abuts against the support member, the top surface of the bottom pan is lower than the top surface of the pan body, and the top surface of the pan body is lower than the bottom surface of the evaporator assembly, so as to avoid interference between the bottom pan and the pan body in the disassembly and assembly of the evaporator assembly, and facilitate the disassembly and assembly of the evaporator assembly.

[0011] Furthermore, the evaporator assembly includes an evaporator and a connecting plate, the connecting plate is provided with a first side surface and a second side surface, the first side surface and the second side surface are arranged at a preset angle, the volute fixing plate is connected to the first side surface by screws, and the evaporator is connected to the second side surface by screws. The evaporator and the volute fixing plate are arranged at a preset angle, so that the evaporator is arranged tilted to a horizontal plane, thereby improving the heat exchange effect of the evaporator.

[0012] Furthermore, the support member includes a first support block and a second support block, the first support block is provided with a first support surface, the first support surface is perpendicularly arranged to the first side surface, the second support block is provided with a second support surface, the second support surface is parallelly arranged to the second side surface, the bottom surface of the evaporator is arranged in contact with the first support surface, and the side surface of the evaporator is arranged in contact with the second support surface. The first support surface can support the bottom surface of the evaporator, and the second support surface can support the side surface of the evaporator to fix the position of the evaporator and prevent the evaporator from displacement.

[0013] Furthermore, there are two second support blocks, which are arranged in parallel and spaced apart, one end of the evaporator is supported on one second support surface, and the other end is supported on another second support surface, and the evaporator, the first support block and the two second support blocks together form a sealed cavity, which can effectively prevent air leakage and improve the heat exchange efficiency of the evaporator.

[0014] Furthermore, a first sealing rubber is provided between the first supporting surface and the bottom surface of the evaporator, and a second sealing rubber is provided between the second supporting surface and the side surface of the evaporator, so as to improve the sealing effect and ensure the heat exchange efficiency of the evaporator.

[0015] Furthermore, the air outlet mechanism includes a motor assembly and a volute assembly, the motor assembly is connected to the volute assembly, and the motor assembly and the volute assembly are both connected to the volute fixing plate by screws. The volute fixing plate can fix the position of the motor assembly and the volute assembly to prevent the motor assembly and the volute assembly from displacement.

[0016] Furthermore, the housing further comprises a side plate, which is connected between the top cover plate and the bottom plate, and is provided with an inspection port, the evaporator assembly is provided with a pipe joint, the pipe joint extends out of the inspection port, and the distance between the pipe joint and the side of the inspection port close to the outlet is greater than the distance between the volute fixing plate and the outlet, so as to avoid the pipe joint interfering with the removal of the volute fixing plate.

[0017] Furthermore, the duct machine also includes a valve plate, which is detachably mounted in the inspection port, and the valve plate can open or close the inspection port, and the valve plate is provided with a clearance groove, and the pipe joint is arranged in the clearance groove. The clearance groove can make way for the pipe joint, so that the pipe joint can be extended from the shell.

[0018] Furthermore, the valve plate includes a first valve plate and a second valve plate, the first valve plate and the second valve plate are arranged side by side and are both connected to the side plate by screws, and the clearance groove is opened on the first valve plate. The first valve plate and the second valve plate are both independently arranged, and the combination of the first valve plate and the second valve plate can completely close the inspection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the air duct machine according to an embodiment of the present invention from a first perspective;

[0020] Figure 2 is a structural schematic diagram of the air duct machine according to an embodiment of the present invention from a second viewing angle;

[0021] Figure 3 is a structural schematic diagram of the duct machine according to an embodiment of the present invention from a third viewing angle;

[0022] Figure 4 This is an exploded view of the connection between the volute fixing plate and the outer shell in the duct machine according to the embodiment of the present invention;

[0023] Figure 5 yes Figure 4 Schematic diagram of the structure of the mid-chassis;

[0024] Figure 6 yes Figure 4 A schematic diagram of the structure of the middle volute fixing plate and the chassis;

[0025] Figure 7 It is a structural schematic diagram of the connection between the volute fixing plate and the evaporator assembly in the air duct machine according to an embodiment of the present invention;

[0026] Figure 8 It is a structural schematic diagram of a water receiving tray in a duct machine according to an embodiment of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the duct machine according to an embodiment of the present invention when the valve plate has a fully opened inspection port;

[0028] Fig.10It is a structural schematic diagram of the duct machine described in an embodiment of the present invention when the valve plate completely closes the inspection port.

[0029] Description of reference numerals:

[0030] 100-duct machine; 110-housing; 111-inspection port; 112-first cavity; 113-second cavity; 114-export; 115-top cover; 1151-first threaded hole; 1152-fixing part; 116-chassis; 1161-positioning plug; 1162-guide ramp; 1163-second threaded hole; 117-side plate; 120-air outlet mechanism; 121-motor assembly; 122-volute assembly; 130-evaporator assembly; 131-evaporator; 132- Connecting plate; 133-first side; 134-second side; 135-pipe joint; 140-volute fixing plate; 141-first through hole; 142-connecting part; 143-limiting groove; 144-second through hole; 150-water receiving tray; 151-tray body; 152-support member; 153-first supporting block; 154-second supporting block; 155-first supporting surface; 156-second supporting surface; 160-valve plate; 161-allowing groove; 162-first valve plate; 163-second valve plate. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3 The embodiment of the present invention provides a duct unit 100 for controlling indoor temperature. The duct unit 100 can conveniently and quickly disassemble and assemble the evaporator assembly 130 to improve maintenance efficiency, reduce maintenance costs, avoid roof damage, and improve user experience.

[0033] The duct machine 100 includes a housing 110, an air outlet mechanism 120, an evaporator assembly 130, a volute fixing plate 140, a water receiving tray 150 and a valve plate 160. Among them, the air outlet mechanism 120, the evaporator assembly 130, the volute fixing plate 140 and the water receiving tray 150 are all installed in the housing 110, and the water receiving tray 150 is arranged below the evaporator assembly 130. The air outlet mechanism 120 is used to drive the air flow to form an outlet air flow. The evaporator assembly 130 is used to perform heat exchange on the outlet air flow to increase or decrease the temperature of the outlet air flow, thereby realizing the heating or cooling function of the duct machine 100. The volute fixing plate 140 is used to fix the position of the air outlet mechanism 120 and the evaporator assembly 130 to ensure that the duct machine 100 can operate normally and facilitate the removal of the evaporator assembly 130 from the housing 110. The water receiving tray 150 is used to receive the condensed water generated on the evaporator assembly 130 and discharge it to the outside. The housing 110 is provided with an inspection port 111, and the valve plate 160 is detachably installed in the inspection port 111. The valve plate 160 can open or close the inspection port 111 to facilitate the inspection of the water pump (not shown) in the duct unit 100, and the inspection port 111 can make way for the disassembly and assembly of the evaporator assembly 130 to avoid interference between the housing 110 and the evaporator assembly 130.

[0034] It is worth noting that the volute fixing plate 140 is detachably connected to the outer shell 110 to separate the inner cavity of the outer shell 110 into a first cavity 112 and a second cavity 113. The air outlet mechanism 120 is disposed in the first cavity 112 and is detachably connected to the volute fixing plate 140, and the evaporator assembly 130 is disposed in the second cavity 113 and is detachably connected to the volute fixing plate 140, that is, the air outlet mechanism 120 and the evaporator assembly 130 are disposed on both sides of the volute fixing plate 140. The outer shell 110 is provided with an outlet 114, which is in communication with the first cavity 112, and the outlet 114 is used for the air outlet mechanism 120, the volute fixing plate 140 and the evaporator assembly 130 to be removed. The air outlet mechanism 120, the volute fixing plate 140 and the evaporator assembly 130 can all slide relative to the outer shell 110 and be removed from the outlet 114 to achieve rapid disassembly of the duct unit 100, which is convenient for maintenance of the air outlet mechanism 120 and the evaporator assembly 130 and has high maintenance efficiency.

[0035] Specifically, there are four ways to disassemble the duct machine 100. The first disassembly method is: first, the volute fixing plate 140 is disassembled from the outer shell 110, and then the air outlet mechanism 120, the volute fixing plate 140 and the evaporator assembly 130 are removed from the outlet 114 together. The second disassembly method is: first, the air outlet mechanism 120 is disassembled from the volute fixing plate 140, and then the air outlet mechanism 120 is removed from the outlet 114, then the volute fixing plate 140 is disassembled from the outer shell 110, and then the volute fixing plate 140 and the evaporator assembly 130 are removed from the outlet 114 together. The third disassembly method is: first, the volute fixing plate 140 is disassembled from the outer shell 110, the volute fixing plate 140 is disassembled from the evaporator assembly 130, and then the volute fixing plate 140 and the air outlet mechanism 120 are removed from the outlet 114 together, and finally the evaporator assembly 130 is removed from the outlet 114. The fourth disassembly method is to first disassemble the air outlet mechanism 120 from the volute fixing plate 140, then disassemble the air outlet mechanism 120 from the outlet 114, then disassemble the volute fixing plate 140 from the outer shell 110, disassemble the volute fixing plate 140 from the evaporator assembly 130, then disassemble the volute fixing plate 140 from the outlet 114, and finally disassemble the evaporator assembly 130 from the outlet 114.

[0036] The housing 110 includes a top cover plate 115, a bottom plate 116 and a side plate 117. The top cover plate 115 and the bottom plate 116 are arranged opposite to each other, the top cover plate 115 and the bottom plate 116 are arranged in parallel and spaced apart, the top cover plate 115 is located above the bottom plate 116, the side plate 117 is connected between the top cover plate 115 and the bottom plate 116, the inspection port 111 is opened on the side plate 117, and the valve plate 160 is detachably connected to the side plate 117. The volute fixing plate 140 is arranged between the top cover plate 115 and the bottom plate 116, one side of the volute fixing plate 140 is detachably connected to the top cover plate 115, and the other side is detachably connected to the bottom plate 116, so as to separate the housing 110 into a first cavity 112 and a second cavity 113. During the detachment process of the volute fixing plate 140 and the outer shell 110 , it is necessary to detach the volute fixing plate 140 from the top cover plate 115 , and to detach the volute fixing plate 140 from the bottom plate 116 .

[0037] In this embodiment, the duct unit 100 is horizontally arranged at the top of the room, the top cover plate 115 is arranged on a horizontal plane, the bottom plate 116 is arranged on a horizontal plane, the side plate 117 is arranged on a vertical plane, the volute fixing plate 140 is arranged on a vertical plane, and the volute fixing plate 140, the side plate 117 and the top cover plate 115 are perpendicular to each other to facilitate the removal of the air outlet mechanism 120 and the evaporator assembly 130 from the air outlet.

[0038] Please refer to Figure 4 , Figure 5 and Figure 6It should be noted that the top cover plate 115 is provided with a fixing portion 1152 in the first cavity 112, and the fixing portion 1152 is provided with a first threaded hole 1151. The volute fixing plate 140 is provided with a connecting portion 142, and the connecting portion 142 is provided with a first through hole 141. The first through hole 141 is used for a screw (not shown) to pass through, and the first threaded hole 1151 is used to cooperate with the screw to fix the relative position of the volute fixing plate 140 and the top cover plate 115, and prevent the volute fixing plate 140 from being displaced relative to the top cover plate 115. Specifically, the position of the first through hole 141 corresponds to the position of the first threaded hole 1151, and the screw can pass through the first through hole 141 and be tightened relative to the first threaded hole 1151 to fix the volute fixing plate 140 on the top cover plate 115.

[0039] Furthermore, since the fixing portion 1152 and the connecting portion 142 are both arranged in the first cavity 112, and the first cavity 112 is connected to the outlet 114, the staff can directly install or remove the screws through the outlet 114 and in the first cavity 112, thereby installing the volute fixing plate 140 on the top cover plate 115 or removing the volute fixing plate 140 from the top cover plate 115. This is convenient and practical, and facilitates the disassembly and assembly of the evaporator assembly 130, so as to improve maintenance efficiency, reduce maintenance costs, avoid breaking the top, and enhance user experience.

[0040] In this embodiment, the connecting portion 142 is bent, and the fixing portion 1152 is concave. The connecting portion 142 cooperates with the fixing portion 1152 to align the first through hole 141 with the first threaded hole 1151, so as to facilitate the assembly and fixation of the volute fixing plate 140 and the top cover plate 115. Specifically, the cross section of the connecting portion 142 is V-shaped, and the fixing portion 1152 is formed by the top cover plate 115 being concave toward the direction close to the chassis 116. The connecting portion 142 and the fixing portion 1152 are overlapped, and the fixing portion 1152 can limit the connecting portion 142, thereby limiting the volute fixing plate 140, so as to prevent the volute fixing plate 140 from being displaced relative to the top cover plate 115. The first through hole 141 is provided on a side of the connecting portion 142 away from the volute fixing plate 140, so as to facilitate the installation or removal of the screws, thereby facilitating the assembly or removal of the volute fixing plate 140 and the top cover plate 115.

[0041] In this embodiment, the number of the first through hole 141 and the number of the first threaded hole 1151 are both two, and the two first through holes 141 are arranged at intervals on the connecting portion 142, each first through hole 141 is aligned with a first threaded hole 1151, and the connecting portion 142 is connected to the fixing portion 1152 by two screws to improve the connection strength and ensure that the volute fixing plate 140 will not be displaced relative to the top cover plate 115. However, this is not limited to this. In other embodiments, the number of the first through holes 141 and the first threaded holes 1151 can be three or four, and the number of the first through holes 141 and the first threaded holes 1151 is not specifically limited.

[0042] It should be noted that a limiting groove 143 is provided at the bottom of the volute fixing plate 140, and a positioning plug 1161 is provided on the chassis 116. The positioning plug 1161 extends into the limiting groove 143 and cooperates with the limiting groove 143 to fix the relative position of the volute fixing plate 140 and the chassis 116, and prevent the volute fixing plate 140 from being displaced relative to the chassis 116. In this embodiment, the positioning plug 1161 is provided with a guide slope 1162, and the guide slope 1162 is used to slide relative to the volute fixing plate 140 to reduce the friction resistance of the positioning plug 1161 and the limiting groove 143, so as to facilitate the insertion of the positioning plug 1161 into the limiting groove 143. Specifically, the number of the guiding slopes 1162 is two, and the two guiding slopes 1162 are relatively arranged on both sides of the positioning plug 1161.

[0043] Further, a second through hole 144 is provided at the bottom of the volute fixing plate 140, and a second threaded hole 1163 is provided at the bottom of the chassis 116. The second through hole 144 is used for a second screw to pass through, and the second threaded hole 1163 is used to cooperate with the screw to fix the relative position of the volute fixing plate 140 and the chassis 116, and further prevent the volute fixing plate 140 from being displaced relative to the chassis 116. Specifically, the position of the second through hole 144 corresponds to the position of the second threaded hole 1163, and the screw can pass through the second through hole 144 and be tightened relative to the second threaded hole 1163 to fix the volute fixing plate 140 to the chassis 116.

[0044] In this embodiment, the number of the limiting grooves 143 and the positioning insert 1161 are both two, the number of the second through hole 144 and the second threaded hole 1163 are both one, the two limiting grooves 143 are arranged at intervals on the volute fixing plate 140, and the second through hole 144 is arranged between the two limiting grooves 143 to improve the stability of the connection between the volute fixing plate 140 and the chassis 116. However, it is not limited to this. In other embodiments, the number of the limiting grooves 143 and the positioning insert 1161 can be three, the number of the second through hole 144 and the second threaded hole 1163 can be two, and the number of the limiting grooves 143, the positioning insert 1161, the second through hole 144 and the second threaded hole 1163 is not specifically limited.

[0045] Please refer to Figure 7 and Figure 8 The evaporator assembly 130 includes an evaporator 131 and a connecting plate 132. The evaporator 131 is detachably connected to the volute fixing plate 140 through the connecting plate 132. If the evaporator 131 is to be removed for maintenance, it is necessary to first disassemble the volute fixing plate 140 from the connecting plate 132, and then disassemble the connecting plate 132 from the evaporator 131. Specifically, the connecting plate 132 is provided with a first side surface 133 and a second side surface 134, and the first side surface 133 and the second side surface 134 are arranged at a preset angle. The volute fixing plate 140 is connected to the first side surface 133 by screws, and the evaporator 131 is connected to the second side surface 134 by screws. In this way, the volute fixing plate 140 is arranged in close contact with the first side surface 133, and the evaporator 131 is arranged in close contact with the second side surface 134. The first side surface 133 is a vertical plane, so that the evaporator 131 and the volute fixing plate 140 are arranged at a preset angle, so that the evaporator 131 is arranged inclined to the horizontal plane, thereby improving the heat exchange effect of the evaporator 131.

[0046] In this embodiment, the connecting plate 132 is arranged in a triangular shape, the right-angled side of the connecting plate 132 is connected to the volute fixing plate 140, and the hypotenuse of the connecting plate 132 is connected to the evaporator 131. Specifically, the preset angle is 45 degrees, that is, the inclination angle of the evaporator 131 relative to the horizontal plane is 45 degrees. However, it is not limited to this. In other embodiments, the preset angle can be 30 degrees or 60 degrees, and the size of the preset angle is not specifically limited.

[0047] In this embodiment, the number of the connecting plates 132 is two, and the two connecting plates 132 are connected to both ends of the evaporator 131 in parallel and at intervals, and are both connected to the volute fixing plate 140 to improve the stability of the connection between the volute fixing plate 140 and the evaporator 131. However, this is not limited to this, and in other embodiments, the number of the connecting plates 132 can be three or four, and the number of the connecting plates 132 is not specifically limited.

[0048] The water receiving tray 150 includes a tray body 151 and a support member 152. The support member 152 is fixedly connected to the tray body 151, and the tray body 151 is used to receive condensed water generated on the evaporator 131 of the evaporator assembly 130. The evaporator 131 is abutted against the support member 152, and the support member 152 is used to support the evaporator 131 to further improve the stability of the evaporator 131 and prevent the evaporator 131 from displacement. The top surface of the bottom plate 116 is lower than the top surface of the tray body 151, and the top surface of the tray body 151 is lower than the bottom surface of the evaporator 131, so as to avoid interference between the bottom plate 116 and the tray body 151 in the disassembly and assembly of the evaporator 131, and facilitate the disassembly and assembly of the evaporator 131.

[0049] The support member 152 includes a first support block 153 and a second support block 154. The first support block 153 is provided with a first support surface 155, which is perpendicular to the first side surface 133 and is a horizontal plane. The second support block 154 is provided with a second support surface 156, which is parallel to the second side surface 134 and has an inclination angle of 45 degrees relative to the horizontal plane. The bottom surface of the evaporator 131 is fitted with the first support surface 155, and the side surface of the evaporator 131 is fitted with the second support surface 156. The first support surface 155 can support the bottom surface of the evaporator 131, and the second support surface 156 can support the side surface of the evaporator 131 to fix the position of the evaporator 131 and prevent the evaporator 131 from displacement. Specifically, the first support block 153 is in a rectangular shape, the second support block 154 is in a triangular plate shape, the first support surface 155 is the top surface of the first support block 153 , and the second support surface 156 is the inclined surface of the second support block 154 .

[0050] In this embodiment, there are two second support blocks 154, which are arranged in parallel and spaced apart. One end of the evaporator 131 abuts against one second support surface 156, and the other end abuts against another second support surface 156. The two second support blocks 154 can jointly support the side of the evaporator 131 to further fix the position of the evaporator 131. Specifically, the evaporator 131, the first support block 153 and the two second support blocks 154 jointly form a sealed cavity. The outside air enters the sealed cavity under the negative pressure generated by the air outlet mechanism 120, and then is blown out to the room through the evaporator 131 and the air outlet mechanism 120 in turn to control the indoor temperature, which can effectively prevent air leakage and improve the heat exchange efficiency of the evaporator 131.

[0051] In this embodiment, a first sealing rubber (not shown) is provided between the first supporting surface 155 and the bottom surface of the evaporator 131, and a second sealing rubber (not shown) is provided between the second supporting surface 156 and the side surface of the evaporator 131. The first sealing rubber can seal the gap between the first supporting surface 155 and the bottom surface of the evaporator 131, and the second sealing rubber can seal the gap between the second supporting surface 156 and the side surface of the evaporator 131, so as to improve the sealing effect and ensure the heat exchange efficiency of the evaporator 131.

[0052] Please continue to refer to Figure 2The air outlet mechanism 120 includes a motor assembly 121 and a volute assembly 122. The motor assembly 121 is connected to the volute assembly 122, and the motor assembly 121 can drive the volute assembly 122 to generate negative pressure to drive air flow to form an outlet airflow. The motor assembly 121 and the volute assembly 122 are both connected to the volute fixing plate 140 by screws, and the volute fixing plate 140 can fix the position of the motor assembly 121 and the volute assembly 122 to prevent the motor assembly 121 and the volute assembly 122 from being displaced. If the motor assembly 121 and the volute assembly 122 are to be disassembled for maintenance, it is necessary to disassemble the motor assembly 121 from the volute fixing plate 140, and disassemble the volute assembly 122 from the volute fixing plate 140.

[0053] Please refer to Fig. 9 and Fig.10 It should be noted that the evaporator assembly 130 is provided with a pipe joint 135, which extends out of the inspection port 111 and is connected to an external pipeline. The distance between the pipe joint 135 and the side of the inspection port 111 close to the outlet 114 is greater than the distance between the volute fixing plate 140 and the outlet 114, so as to avoid the pipe joint 135 interfering with the removal of the volute fixing plate 140. Specifically, the distance between the volute fixing plate 140 and the outlet 114 is represented as L1, and the distance between the pipe joint 135 and the side of the inspection port 111 close to the outlet 114 is represented as L2, and L1 is smaller than L2. In this way, in the process of the volute fixing plate 140 driving the evaporator assembly 130 to be removed from the outlet 114, when the volute fixing plate 140 leaves the outlet 114, the pipe joint 135 has not moved to the position of abutting against the side wall of the inspection port 111 close to the outlet 114, that is, the pipe joint 135 will not interfere with the removal of the volute fixing plate 140, thereby improving the disassembly and assembly efficiency.

[0054] Furthermore, the difference between L2 and L1 ranges from 5 mm to 15 mm. A reasonable difference can ensure that the structure of the duct machine 100 is compact and there is no waste of space while avoiding interference with the removal of the volute fixing plate 140. In this embodiment, the difference between L2 and L1 is 10 mm, which ensures that the volute fixing plate 140 has sufficient movement stroke, but it is not limited to this. In other embodiments, the difference between L2 and L1 can be 5 mm or 15 mm, and the difference between L2 and L1 is not specifically limited.

[0055] It is worth noting that the valve plate 160 is provided with a clearance groove 161, and the pipe joint 135 is arranged in the clearance groove 161. The clearance groove 161 can make way for the pipe joint 135, so that the pipe joint 135 can be extended from the shell 110. If the evaporator assembly 130 is to be disassembled for maintenance, the valve plate 160 needs to be removed from the side plate 117 to open the inspection port 111. At this time, the pipe joint 135 can move in the inspection port 111, and the valve plate 160 will not block the pipe joint 135.

[0056] The valve plate 160 includes a first valve plate 162 and a second valve plate 163. The first valve plate 162 and the second valve plate 163 are arranged side by side and are both connected to the side plate 117 by screws. The clearance groove 161 is opened on the first valve plate 162, and the pipe joint 135 extends out of the first valve plate 162. In this embodiment, the first valve plate 162 and the second valve plate 163 are both independently arranged, that is, the first valve plate 162 can be assembled with the side plate 117 or removed from the side plate 117, and the second valve plate 163 can be assembled with the side plate 117 or removed from the side plate 117, and the combination of the first valve plate 162 and the second valve plate 163 can completely close the inspection port 111.

[0057] Specifically, when only the water pump in the duct unit 100 needs to be inspected and maintained, the first valve plate 162 only needs to be removed from the side plate 117, while the second valve plate 163 remains unchanged, so as to open part of the inspection port 111, simplify the operation steps, and facilitate the inspection and maintenance of the water pump. When the evaporator assembly 130 needs to be removed for maintenance, the first valve plate 162 and the second valve plate 163 need to be removed from the side plate 117 to open the entire inspection port 111, so as to facilitate the movement of the pipe joint 135 in the inspection port 111, thereby avoiding the pipe joint 135 from interfering with the removal of the evaporator assembly 130.

[0058] The duct machine 100 described in the embodiment of the present invention, the shell 110 includes a top cover plate 115 and a bottom plate 116 arranged opposite to each other, the volute fixing plate 140 is arranged between the top cover plate 115 and the bottom plate 116 to separate the shell 110 into a first cavity 112 and a second cavity 113, the air outlet mechanism 120 is arranged in the first cavity 112, the evaporator assembly 130 is arranged in the second cavity 113, the shell 110 is provided with an outlet 114, the outlet 114 is connected to the first cavity 112, the top cover plate 115 is provided with a fixing portion 1152 in the first cavity 112, the fixing portion 1152 is provided with a first threaded hole 1151, the volute fixing plate 140 is provided with a connecting portion 142, the connecting portion 142 is provided with a first through hole 141, the first through hole 141 is used for screws to pass through, and the first threaded hole 1151 is used to cooperate with the screws to fix the relative positions of the volute fixing plate 140 and the top cover plate 115. Compared with the prior art, the duct machine 100 provided by the present invention adopts a fixing portion 1152 arranged in the first cavity 112 and an outlet 114 connected to the first cavity 112, so the evaporator assembly 130 can be disassembled and assembled conveniently and quickly, so as to improve maintenance efficiency, reduce maintenance costs, avoid roof damage, and enhance user experience.

[0059] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A duct machine, characterized in that: The invention comprises a housing (110), an air outlet mechanism (120), an evaporator assembly (130) and a volute fixing plate (140); the housing (110) comprises a top cover plate (115) and a bottom plate (116) which are arranged opposite to each other; the volute fixing plate (140) is arranged between the top cover plate (115) and the bottom plate (116) to separate the housing (110) into a first cavity (112) and a second cavity (113); the air outlet mechanism (120) is arranged in the first cavity (112); the evaporator assembly (130) is arranged in the second cavity (113); and the housing (110) has a first cavity (112) and a second cavity (113). An outlet (114) is provided, the outlet (114) being in communication with the first cavity (112); the top cover plate (115) is provided with a fixing portion (1152) in the first cavity (112); the fixing portion (1152) is provided with a first threaded hole (1151); the volute fixing plate (140) is provided with a connecting portion (142); the connecting portion (142) is provided with a first through hole (141); the first through hole (141) is used for a screw to pass through; the first threaded hole (1151) is used for cooperating with the screw to fix the relative position of the volute fixing plate (140) and the top cover plate (115); A limiting groove (143) is provided at the bottom of the volute fixing plate (140), and a positioning insert (1161) is provided on the bottom plate (116), wherein the positioning insert (1161) extends into the limiting groove (143) and cooperates with the limiting groove (143); The duct air conditioner further comprises a water receiving tray (150), the water receiving tray (150) comprising a tray body (151) and a support member (152), the support member (152) being fixedly connected to the tray body (151), the evaporator assembly (130) being in contact with the support member (152), the top surface of the bottom plate (116) being lower than the top surface of the tray body (151), and the top surface of the tray body (151) being lower than the bottom surface of the evaporator assembly (130); The evaporator assembly (130) comprises an evaporator (131) and a connecting plate (132); the connecting plate (132) is provided with a first side surface (133) and a second side surface (134); the first side surface (133) and the second side surface (134) are arranged at a preset angle; the volute fixing plate (140) is connected to the first side surface (133) by means of screws; and the evaporator (131) is connected to the second side surface (134) by means of screws; The support member (152) comprises a first support block (153) and a second support block (154); the first support block (153) is provided with a first support surface (155), the first support surface (155) is arranged perpendicular to the first side surface (133); the second support block (154) is provided with a second support surface (156), the second support surface (156) is arranged parallel to the second side surface (134); the bottom surface of the evaporator (131) is arranged in contact with the first support surface (155), and the side surface of the evaporator (131) is arranged in contact with the second support surface (156).

2. The air duct machine according to claim 1, characterized in that: The connecting portion (142) is in a bent shape, the fixing portion (1152) is in a concave shape, and the connecting portion (142) cooperates with the fixing portion (1152) so that the first through hole (141) is aligned with the first threaded hole (1151).

3. The air duct machine according to claim 1, characterized in that: The positioning insert (1161) is provided with a guide slope (1162), and the guide slope (1162) is used to slide relative to the volute fixing plate (140).

4. The air duct machine according to claim 1, characterized in that: A second through hole (144) is provided at the bottom of the volute fixing plate (140), and a second threaded hole (1163) is provided on the bottom plate (116). The second through hole (144) is used for a second screw to pass through, and the second threaded hole (1163) is used for cooperating with the screw to fix the relative position of the volute fixing plate (140) and the bottom plate (116).

5. The air duct machine according to claim 1, characterized in that: The number of the second support blocks (154) is two, and the two second support blocks (154) are arranged in parallel and at intervals, one end of the evaporator (131) is abutted against one of the second support surfaces (156), and the other end is abutted against another of the second support surfaces (156), and the evaporator (131), the first support block (153) and the two second support blocks (154) together form a sealed cavity.

6. The air duct machine according to claim 1, characterized in that: A first sealing rubber is provided between the first supporting surface (155) and the bottom surface of the evaporator (131), and a second sealing rubber is provided between the second supporting surface (156) and the side surface of the evaporator (131).

7. The air duct machine according to claim 1, characterized in that: The air outlet mechanism (120) comprises a motor assembly (121) and a volute assembly (122); the motor assembly (121) is connected to the volute assembly (122); and both the motor assembly (121) and the volute assembly (122) are connected to the volute fixing plate (140) via screws.

8. The air duct machine according to claim 1, characterized in that: The housing (110) further comprises a side plate (117), the side plate (117) being connected between the top cover plate (115) and the bottom plate (116), the side plate (117) being provided with an inspection opening (111), the evaporator assembly (130) being provided with a pipe joint (135), the pipe joint (135) extending out of the inspection opening (111), and the distance between the pipe joint (135) and a side of the inspection opening (111) close to the outlet (114) being greater than the distance between the volute fixing plate (140) and the outlet (114).

9. The air duct machine according to claim 8, characterized in that: The duct machine further comprises a valve plate (160), the valve plate (160) being detachably mounted in the inspection port (111), the valve plate (160) being capable of opening or closing the inspection port (111), the valve plate (160) being provided with a clearance groove (161), and the pipe joint (135) being arranged in the clearance groove (161).

10. The air duct machine according to claim 9, characterized in that: The valve plate (160) comprises a first valve plate (162) and a second valve plate (163); the first valve plate (162) and the second valve plate (163) are arranged side by side and are both connected to the side plate (117) via screws; the clearance groove (161) is provided on the first valve plate (162).

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