Air conditioner

Abstract

The utility model discloses an air conditioner, and relates to the technical field of air conditioners. The air conditioner comprises a base, a bearing table, a motor gland, a driving motor and cross-flow fan blades. The base is provided with a bearing table, the motor gland is arranged below the bearing table, covers the bearing table and is detachably connected with the bearing table, a mounting cavity is defined by the motor gland and the bearing table jointly, the driving motor is mounted in the mounting cavity, and the driving motor is used for being connected with the cross-flow fan blade. The motor gland can be downwards detached from the bearing table under the condition that the middle frame is not detached, so that the driving motor can be detached conveniently. According to the air conditioner, the driving motor can be disassembled downwards on the basis that the middle frame is not disassembled, the disassembling steps are simplified, time and labor are saved, the disassembling efficiency is improved, the driving motor can be conveniently maintained, the operation height can be reduced to a certain degree, and the disassembling convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioner. Background Art

[0002] At present, with the continuous improvement of living standards, air conditioners have become an indispensable household appliance for every household. The drive motor used to drive the crossflow fan blades in the current wall-mounted air conditioner is generally installed in the motor base. The motor base is detachably connected to the base and is set in the middle frame. If the drive motor is to be maintained, it is necessary to first remove the middle frame from the base, and then remove the motor base and drive motor from the base together. Then, disassemble the motor base and remove the drive motor. The entire disassembly and assembly process is complicated, time-consuming and labor-intensive, and the disassembly and assembly efficiency is low, which directly leads to extended maintenance time for the drive motor and affects the user experience. In addition, the current motor base and drive motor are both disassembled outward in a horizontal direction, and the installation position of the wall-mounted air conditioner is relatively high, which is not convenient for operation. Utility Model Content

[0003] The problem solved by the utility model is how to realize the downward disassembly of the drive motor without disassembling the middle frame, simplifying the disassembly steps, saving time and effort, improving the disassembly efficiency, facilitating the maintenance of the drive motor, and being able to reduce the working height to a certain extent, thereby improving the convenience of disassembly.

[0004] In order to solve the above problems, the technical solution of the present utility model is achieved as follows:

[0005] The present invention provides an air conditioner, comprising a base, a middle frame, a motor gland, and a drive motor. The base is provided with a bearing platform, the motor gland is provided below the bearing platform, and the cover is provided outside the bearing platform and is detachably connected to the bearing platform. The motor gland and the bearing platform together form a mounting cavity, and the drive motor is installed in the mounting cavity. The drive motor is used to connect to the crossflow fan blades. The motor gland can be detached downward from the bearing platform without removing the middle frame to facilitate removal of the drive motor. Compared with the prior art, the air conditioner provided by the present invention uses a bearing platform provided on the base and a motor gland provided outside the bearing platform. Therefore, the drive motor can be removed downward without removing the middle frame, thereby simplifying the disassembly steps, saving time and effort, improving disassembly efficiency, facilitating maintenance of the drive motor, and reducing the working height to a certain extent, thereby improving the convenience of disassembly.

[0006] Furthermore, the support platform is provided with a first end plate and a second end plate opposite to each other, the drive motor is provided between the first end plate and the second end plate, and the first end plate is provided with a clearance groove for accommodating the output shaft of the drive motor. This allows the output shaft to extend out of the mounting cavity and connect with the crossflow blades, thereby facilitating the drive motor to drive the crossflow blades to rotate via the output shaft.

[0007] Furthermore, the motor gland is provided with a first baffle and a second baffle facing each other, the drive motor being disposed between the first and second baffles. The first baffle is provided with an escape groove, which together form a clearance channel that communicates with the mounting cavity and allows the output shaft to extend. This ensures the reliability of the output shaft's rotation, thereby improving the stability of the crossflow blades driven by the drive motor and ensuring the air output effect.

[0008] Furthermore, an opening is formed between the first end plate and the second end plate, and the opening is arranged downward.

[0009] Furthermore, the support platform is extended with a guide slide, and the motor gland is provided with a mating surface, and the guide slide slidably engages with the mating surface. The motor gland can slide relative to the guide slide, and the guide slide can guide and limit the motor gland through the mating surface to achieve a foolproof function and facilitate the removal and installation of the motor gland.

[0010] Furthermore, the motor gland is provided with a through hole, and the base is provided with a threaded hole, which is adapted to engage with a screw threaded through the through hole. The screw can be tightened relative to the threaded hole to fix the relative position of the motor gland and the base, thereby fixing the relative position of the motor gland and the support platform, ensuring that the motor gland and the support platform effectively limit the drive motor. The screw can also be loosened relative to the threaded hole to release the fixed state between the motor gland and the base, making it easier for personnel to remove the motor gland and thereby facilitate removal of the drive motor for maintenance.

[0011] Furthermore, there are multiple through holes and threaded holes, each of which is spaced apart, with the position of each through hole corresponding to the position of a threaded hole. The multiple through holes, threaded holes, and screws work together to improve the positioning of the motor gland, further securing the relative position of the motor gland and the support platform, ensuring that the motor gland and the support platform effectively limit the drive motor and prevent the motor gland from accidentally detaching from the base.

[0012] The air conditioner further includes a downwind duct, which is detachably connected to the base and disposed on a side of the motor gland away from the support platform, and abuts against the motor gland. The downwind duct is used to position the motor gland to prevent it from accidentally falling off, and is also used to guide the outflow air generated by the crossflow blades.

[0013] The air conditioner further includes a panel assembly and an air guide door. The panel assembly is hingedly connected to the base or the middle frame, and the panel assembly defines an air outlet. The air guide door is rotatably mounted within the air outlet. The panel assembly can be rotated open relative to the base, and simultaneously drives the air guide door to move, thereby exposing components inside the panel assembly and the air guide door, facilitating maintenance and cleaning of the components inside. It also facilitates removal of the downflow duct from the base, facilitating removal of the motor gland and maintenance of the drive motor.

[0014] Furthermore, the panel assembly includes a panel, a first side panel, a second side panel, and a bottom panel. The panel and bottom panel are both connected between the first and second side panels. The first and second side panels are disposed on opposite sides of the base and are both rotatably connected to the base. The bottom panel is disposed on a side of the downwind duct away from the motor gland and abuts against the downwind duct. The bottom panel is used to limit the downwind duct. When the panel assembly is rotated open relative to the base, the bottom panel no longer limits the downwind duct, allowing the user to easily remove the downwind duct, thereby facilitating removal of the motor gland and maintenance of the drive motor, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the air conditioner according to an embodiment of the present utility model when the panel assembly is closed;

[0016] Figure 2 This is an exploded view of the air conditioner according to an embodiment of the present invention when the panel assembly is rotated open;

[0017] Figure 3 This is a schematic structural diagram of an air conditioner according to an embodiment of the present invention in which a driving motor and crossflow blades are mounted on a base;

[0018] Figure 4 This is an exploded view of the drive motor and crossflow blades of the air conditioner according to an embodiment of the present utility model installed on the base from one perspective;

[0019] Figure 5 This is an exploded view of the drive motor and the crossflow fan blades of the air conditioner according to an embodiment of the present utility model installed on the base from another perspective;

[0020] Figure 6 yes Figure 5 A partial enlarged view of the middle VI;

[0021] Figure 7 It is a structural schematic diagram of a motor gland in an air conditioner according to an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 100-air conditioner; 110-base; 111-threaded hole; 120-support platform; 121-first end plate; 122-second end plate; 123-avoidance groove; 124-guide slide; 130-motor pressure cover; 131-first baffle; 132-second baffle; 133-avoidance groove; 134-matching surface; 135-through hole; 140-drive motor; 141-output shaft; 150-crossflow fan blade; 160-installation cavity; 170-downwind duct; 180-panel assembly; 181-air outlet; 182-panel; 183-first side panel; 184-second side panel; 185-bottom plate; 190-air guide door; 200-middle frame. DETAILED DESCRIPTION

[0024] 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.

[0025] Please refer to Figures 1 to 7 The present invention provides an air conditioner 100 for regulating indoor temperature. The air conditioner 100 can be disassembled downward without disassembling the middle frame 200, simplifying the disassembly process, saving time and effort, improving disassembly efficiency, facilitating maintenance of the drive motor 140, and reducing the operating height to a certain extent, thereby enhancing disassembly convenience.

[0026] It should be noted that the air conditioner 100 is a wall mounted air conditioner, which is hung on a wall indoors. The air conditioner 100 is used to blow hot or cold air into the room to achieve heating or cooling functions, thereby regulating the indoor temperature to meet user needs.

[0027] The air conditioner 100 includes a base 110, a middle frame 200, a motor pressure cover 130, a drive motor 140 and a cross-flow fan blade 150. The middle frame 200 is connected to the base 110, and the base 110 is used to fix and limit the middle frame 200. The base 110 is provided with a bearing platform 120, and the motor pressure cover 130 is arranged below the bearing platform 120, and the cover is arranged outside the bearing platform 120 and is detachably connected to the bearing platform 120. The base 110 can fix and limit the motor pressure cover 130. The motor pressure cover 130 and the bearing platform 120 together enclose an installation cavity 160, and the drive motor 140 is installed in the installation cavity 160. The motor pressure cover 130 and the bearing platform 120 work together to limit the drive motor 140 and prevent the drive motor 140 from shifting in the installation cavity 160. The drive motor 140 is used to connect to the crossflow blades 150. The crossflow blades 150 are disposed within the base 110. One end of the crossflow blades 150 is rotatably connected to the base 110, and the other end is connected to the drive motor 140. The drive motor 140 can drive the crossflow blades 150 to rotate within the base 110 to generate negative pressure and thereby form an outlet airflow, thereby achieving the air outlet function of the air conditioner 100. Specifically, the motor gland 130 can be removed downward from the carrier platform 120 without removing the middle frame 200, so as to expose the drive motor 140 located within the mounting cavity 160. This makes it easier for workers to remove the drive motor 140 from the mounting cavity 160 and perform maintenance. During this process, the crossflow blades 150 can also be removed along with the drive motor 140 to facilitate cleaning or maintenance of the crossflow blades 150. In this way, the drive motor 140 can be disassembled downward without disassembling the middle frame 200, which simplifies the disassembly steps, saves time and effort, improves disassembly efficiency, facilitates maintenance of the drive motor 140, and can reduce the working height to a certain extent, thereby improving the convenience of disassembly.

[0028] Furthermore, the support platform 120 is provided with a first end plate 121 and a second end plate 122 opposite to each other, the drive motor 140 is disposed between the first end plate 121 and the second end plate 122, and the first end plate 121 and the second end plate 122 are spaced apart along the axial direction of the drive motor 140. The crossflow blades 150 are disposed on the side of the first end plate 121 away from the second end plate 122. The first end plate 121 and the second end plate 122 work together to limit the drive motor 140 along the axial direction, thereby preventing the drive motor 140 from being displaced within the mounting cavity 160. Specifically, the first end plate 121 is provided with a clearance groove 123, which is used to make way for the output shaft 141 of the drive motor 140, so that the output shaft 141 can extend out of the mounting cavity 160 and connect with the crossflow blades 150, thereby facilitating the drive motor 140 to drive the crossflow blades 150 to rotate via the output shaft 141.

[0029] In this embodiment, an opening (not marked in the figure) is formed between the first end plate 121 and the second end plate 122, and the opening is set downward to facilitate the downward removal of the drive motor 140 located between the first end plate 121 and the second end plate 122, which saves effort and facilitates operation.

[0030] Correspondingly, the motor gland 130 is provided with a first baffle 131 and a second baffle 132 opposite to each other, the drive motor 140 is disposed between the first baffle 131 and the second baffle 132, and the first baffle 131 and the second baffle 132 are spaced apart along the axial direction of the drive motor 140. The crossflow blade 150 is disposed on the side of the first baffle 131 away from the second baffle 132. The first baffle 131 and the second baffle 132 work together to limit the drive motor 140 along the axial direction, thereby preventing the drive motor 140 from shifting within the mounting cavity 160. Specifically, the first baffle 131 is provided with an avoidance groove 133. The avoidance groove 133 and the clearance groove 123 together form a clearance channel (not shown), which is connected to the mounting cavity 160. The clearance channel is used to allow the output shaft 141 to extend, thereby ensuring the reliability of the output shaft 141's rotation, thereby improving the stability of the crossflow blade 150's rotation driven by the drive motor 140 and ensuring the air outlet effect.

[0031] In this embodiment, the avoidance groove 133 and the giveway groove 123 are both semicircular, the giveway channel is circular, the giveway channel is coaxial with the output shaft 141, and the diameter of the giveway channel is larger than the diameter of the output shaft 141, thereby ensuring the rotational stability of the output shaft 141. However, this is not limiting. In other embodiments, the avoidance groove 133 and the giveway groove 123 are both arc-shaped, the central angles of the arcs of the avoidance groove 133 and the giveway groove 123 are different, and the sum of the central angles of the arcs of the avoidance groove 133 and the giveway groove 123 is 360 degrees. This allows the giveway channel to be circular, thus also ensuring the rotational stability of the output shaft 141.

[0032] Furthermore, the supporting platform 120 is extended to provide a guide sliding platform 124, and the motor cover 130 is provided with a mating surface 134. The guide sliding platform 124 slides with the mating surface 134, and the motor cover 130 can slide relative to the guide sliding platform 124. The guide sliding platform 124 can guide and limit the motor cover 130 through the mating surface 134 to achieve an anti-mistake function, thereby facilitating the disassembly and assembly of the motor cover 130. Specifically, when the air conditioner 100 is in the installed state, the base 110 is installed on the vertical wall, and the motor cover 130 is located at the bottom of the base 110, that is, the motor cover 130 is located below the support platform 120, and the guide slide 124 is extended in the vertical direction, and the mating surface 134 is located on the vertical plane. At this time, if the drive motor 140 needs to be maintained, the motor cover 130 needs to be removed in the vertical downward direction, that is, the motor cover 130 needs to be slid in the vertical downward direction relative to the guide slide 124, which is convenient and labor-saving, and makes it easy for the staff to take out the drive motor 140 from the installation cavity 160 and perform maintenance.

[0033] In this embodiment, the motor gland 130 is provided with a through hole 135, and the base 110 is provided with a threaded hole 111. The position of the through hole 135 corresponds to the position of the threaded hole 111, and the threaded hole 111 is used to engage with the screw thread passing through the through hole 135. Specifically, the screw can be tightened relative to the threaded hole 111 to fix the relative position of the motor gland 130 and the base 110, thereby fixing the relative position of the motor gland 130 and the supporting platform 120, ensuring the limiting effect of the motor gland 130 and the supporting platform 120 on the drive motor 140; the screw can also be loosened relative to the threaded hole 111 to release the fixed state of the motor gland 130 and the base 110, making it easier for staff to remove the motor gland 130, thereby facilitating the removal and maintenance of the drive motor 140.

[0034] Preferably, the number of through holes 135 and threaded holes 111 is multiple, and the multiple through holes 135 are arranged at intervals. The position of each through hole 135 corresponds to the position of a threaded hole 111, and each through hole 135 is used for a screw to pass through. Each screw is used to threadably cooperate with a threaded hole 111. The multiple through holes 135, the multiple threaded holes 111 and the multiple screws work together to improve the positioning effect of the motor cover 130, further fix the relative position of the motor cover 130 and the support platform 120, ensure the limiting effect of the motor cover 130 and the support platform 120 on the drive motor 140, and prevent the motor cover 130 from accidentally detaching from the base 110.

[0035] In this embodiment, the number of through holes 135 and threaded holes 111 is two, and the number of screws is also two. The two threaded holes 111 are respectively provided on two adjacent sides of the base 110 to facilitate production and processing and further improve the positioning effect of the motor gland 130. However, this is not limited to this. In other embodiments, the number of through holes 135 and threaded holes 111 can be three or one, and the number of through holes 135 and threaded holes 111 is not specifically limited.

[0036] Preferably, the air conditioner 100 further includes a downwind duct 170. The downwind duct 170 is detachably connected to the base 110 and is disposed on a side of the motor gland 130 away from the support platform 120. The downwind duct 170 abuts against the motor gland 130. The downwind duct 170 is used to position the motor gland 130 to prevent it from accidentally falling off. The downwind duct 170 is also used to guide the airflow generated by the crossflow blades 150.

[0037] In this embodiment, the down duct 170 is snap-fitted to the base 110 to achieve a detachable connection between the down duct 170 and the base 110, making it easy to remove the down duct 170 from the base 110, thereby facilitating removal of the motor gland 130 and maintenance of the drive motor 140. However, this is not limiting. In other embodiments, the down duct 170 may also be screwed to the base 110, and the detachable connection method between the down duct 170 and the base 110 is not specifically limited.

[0038] Preferably, the air conditioner 100 further includes a panel assembly 180 and an air guide door 190. The panel assembly 180 is provided with an air outlet 181 for blowing out the outgoing air flow. The air guide door 190 is rotatably mounted in the air outlet 181 to guide the outgoing air flow, thereby achieving the function of adjusting the wind direction. The panel assembly 180 is hinged to the base 110 or the middle frame 200. The panel assembly 180 can be rotated and opened relative to the base 110, and synchronously drives the air guide door 190 to move, so that the components inside the panel assembly 180 and the air guide door 190 (such as the downwind duct 170) are exposed, making it easier to maintain and clean the components inside, and to facilitate the removal of the downwind duct 170 from the base 110, so as to facilitate the removal of the motor gland 130 and the maintenance of the drive motor 140.

[0039] Specifically, the position of the downwind duct 170 corresponds to the position of the air outlet 181. The downwind duct 170 is used to guide the outlet airflow generated by the cross-flow fan blades 150 to the air outlet 181, and then blow it into the room to realize the air outlet function of the air conditioner 100. During this process, the air guide door 190 can guide the outlet airflow to realize the function of adjusting the wind direction.

[0040] In this embodiment, the panel assembly 180 is hingedly connected to the base 110, and the panel assembly 180 can rotate directly relative to the base 110 and simultaneously rotate relative to the middle frame 200 connected to the base 110. However, the present invention is not limited thereto. In other embodiments, the panel assembly 180 can also be hingedly connected to the middle frame 200. In this case, the panel assembly 180 can rotate directly relative to the middle frame 200 and simultaneously rotate relative to the base 110 connected to the middle frame 200.

[0041] In this embodiment, the hinged position of the panel assembly 180 and the base 110 is located at the upper part of the base 110. The panel assembly 180 can be flipped upward to a preset position relative to the base 110 to synchronously drive the air guide door 190 to move upward, and the components (downwind duct 170, etc.) installed on the base 110 and located on the inner side of the panel assembly 180 and the air guide door 190 are completely exposed, and the panel assembly 180 and the air guide door 190 will not interfere with maintenance and cleaning.

[0042] The panel assembly 180 includes a panel 182, a first side panel 183, a second side panel 184, and a bottom panel 185. The panel 182 and bottom panel 185 are both connected between the first side panel 183 and the second side panel 184. The panel 182, the first side panel 183, the bottom panel 185, and the second side panel 184 are connected end to end and together form the air outlet 181. The air guide door 190 is rotatably mounted within the air outlet 181. The first side panel 183 and the second side panel 184 are disposed on opposite sides of the base 110 and are both rotatably connected to the base 110. The base 110 is disposed between the first side panel 183 and the second side panel 184. That is, the panel assembly 180 is partially covered by the base 110 to facilitate the rotation and opening of the panel assembly 180. Specifically, the bottom plate 185 is disposed on a side of the downwind duct 170 away from the motor gland 130 and abuts against the downwind duct 170. That is, the bottom plate 185 is disposed below the downwind duct 170 and serves to limit the position of the downwind duct 170. When the panel assembly 180 is rotated open relative to the base 110, the bottom plate 185 no longer limits the position of the downwind duct 170, allowing the user to easily remove the downwind duct 170, thereby facilitating the removal of the motor gland 130 and the maintenance of the drive motor 140, which is quick and convenient.

[0043] The air conditioner 100 described in the embodiment of the present invention has a middle frame 200 connected to the base 110, and the base 110 is provided with a bearing platform 120. The motor cover 130 is arranged below the bearing platform 120, and the cover is arranged outside the bearing platform 120 and is detachably connected to the bearing platform 120. The motor cover 130 and the bearing platform 120 together form an installation cavity 160. The drive motor 140 is installed in the installation cavity 160. The drive motor 140 is used to be connected to the cross-flow fan blades 150. The motor cover 130 can be detached downward from the bearing platform 120 without disassembling the middle frame 200 to facilitate the removal of the drive motor 140. Compared with the prior art, the air conditioner 100 provided by the present invention adopts a supporting platform 120 arranged on the base 110 and a motor pressure cover 130 arranged outside the supporting platform 120. Therefore, the driving motor 140 can be disassembled downward without disassembling the middle frame 200, thereby simplifying the disassembly steps, saving time and effort, improving the disassembly efficiency, facilitating the maintenance of the driving motor 140, and being able to reduce the working height to a certain extent, thereby improving the convenience of disassembly.

[0044] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air conditioner, characterized in that: The invention comprises a base (110), a middle frame (200), a motor pressure cover (130) and a driving motor (140); the base (110) is provided with a bearing platform (120); the motor pressure cover (130) is arranged below the bearing platform (120), and the cover is arranged outside the bearing platform (120) and is detachably connected to the bearing platform (120); the motor pressure cover (130) and the bearing platform (120) jointly form an installation cavity (160); the driving motor (140) is installed in the installation cavity (160); the driving motor (140) is used to be connected to a cross-flow fan blade (150); the motor pressure cover (130) can be detached downward from the bearing platform (120) without disassembling the middle frame (200), so as to facilitate the removal of the driving motor (140).

2. The air conditioner according to claim 1, characterized in that The supporting platform (120) is provided with a first end plate (121) and a second end plate (122) opposite to each other, the driving motor (140) is provided between the first end plate (121) and the second end plate (122), the first end plate (121) is provided with a clearance groove (123), and the clearance groove (123) is used to make way for the output shaft (141) of the driving motor (140).

3. The air conditioner according to claim 2, characterized in that The motor cover (130) is provided with a first baffle (131) and a second baffle (132) opposite to each other, the drive motor (140) is provided between the first baffle (131) and the second baffle (132), the first baffle (131) is provided with an avoidance groove (133), the avoidance groove (133) and the give-way groove (123) together form a give-way channel, the give-way channel is communicated with the installation cavity (160), and the give-way channel is used for allowing the output shaft (141) to extend.

4. The air conditioner according to claim 2, characterized in that An opening is formed between the first end plate (121) and the second end plate (122), and the opening is arranged downward.

5. The air conditioner according to claim 1, characterized in that The bearing platform (120) is extended to be provided with a guide slide platform (124), the motor pressure cover (130) is provided with a matching surface (134), and the guide slide platform (124) is slidably matched with the matching surface (134).

6. The air conditioner according to claim 1, characterized in that The motor gland (130) is provided with a through hole (135), and the base (110) is provided with a threaded hole (111), and the threaded hole (111) is used to cooperate with a screw thread passing through the through hole (135).

7. The air conditioner according to claim 6, characterized in that The through holes (135) and the threaded holes (111) are both multiple in number, the multiple through holes (135) are arranged at intervals, and the position of each through hole (135) corresponds to the position of one threaded hole (111).

8. The air conditioner according to claim 1, wherein: The air conditioner further comprises a downwind duct (170), the downwind duct (170) being detachably connected to the base (110), the downwind duct (170) being arranged on a side of the motor pressure cover (130) away from the supporting platform (120), and being in contact with the motor pressure cover (130).

9. The air conditioner according to claim 8, characterized in that The air conditioner further comprises a panel assembly (180) and an air guide door (190); the panel assembly (180) is hinged to the base (110) or the middle frame (200); the panel assembly (180) is provided with an air outlet (181); and the air guide door (190) is rotatably installed in the air outlet (181).

10. The air conditioner according to claim 9, characterized in that The panel assembly (180) includes a panel (182), a first side panel (183), a second side panel (184) and a bottom panel (185). The panel (182) and the bottom panel (185) are both connected between the first side panel (183) and the second side panel (184). The first side panel (183) and the second side panel (184) are relatively arranged on both sides of the base (110) and are both rotatably connected to the base (110). The bottom panel (185) is arranged on a side of the downwind duct (170) away from the motor cover (130) and abuts against the downwind duct (170).

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