A duct machine

Abstract

The present invention provides a duct machine, comprising a shell, a partition, a baffle and a water receiving tray, wherein the partition divides the internal space of the shell into a fan chamber and a heat exchange chamber, the water receiving tray is installed in the heat exchange chamber, the shell comprises a bottom plate, the water receiving tray is arranged on the bottom plate, a gap is provided between the bottom of the partition and the bottom plate, the baffle is detachably connected to the partition, the lower part of the baffle abuts against the water receiving tray and / or the bottom plate, and closes the gap between the fan chamber and the heat exchange chamber. The duct machine of the present invention has a baffle, which blocks the gap between the fan chamber and the heat exchange chamber, plays a sealing role, prevents the gas in the heat exchange chamber and the fan chamber from flowing from the gap below the partition, and ensures the heat exchange efficiency of the duct machine, and the baffle can be removed from the partition, which is convenient for disassembling and cleaning the duct machine.

Description

Technical Field

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

[0002] With the improvement of living quality, people's requirements for air conditioners are no longer satisfied with the heat exchange function. Duct air conditioners are a kind of concealed air conditioner installed in the ceiling, which can improve the aesthetics of interior decoration and are increasingly favored by consumers.

[0003] The duct air conditioner is equipped with a partition inside, which divides the inside of the duct air conditioner into a heat exchange chamber and a fan chamber. The evaporator and the water tray are installed in the heat exchange chamber. When the water tray is removed, it needs to be moved from the heat exchange chamber to the fan chamber, and then taken out from the return air port of the fan chamber. In order to avoid removing the partition when the water tray is moved, it is necessary to set a clearance gap at the bottom of the partition. The clearance gap allows the gas on both sides of the partition to circulate between each other, and the gas exchange between the heat exchange chamber and the fan chamber will cause the heat exchange efficiency of the duct air conditioner to decrease. Summary of the invention

[0004] The problem solved by the present invention is how to improve the sealing performance between the heat exchange cavity and the fan cavity of the duct air conditioner to ensure the heat exchange efficiency of the duct air conditioner.

[0005] In order to solve the above problems, the present invention provides a duct air conditioner, comprising a shell, a partition, a baffle and a water receiving tray, the partition divides the internal space of the shell into a fan chamber and a heat exchange chamber, the water receiving tray is installed in the heat exchange chamber, the shell comprises a bottom plate, the water receiving tray is arranged on the bottom plate, there is a gap between the bottom of the partition and the bottom plate, the baffle is detachably connected to the partition, the lower part of the baffle is against the water receiving tray and / or the bottom plate, so as to close the gap between the fan chamber and the heat exchange chamber.

[0006] Compared with the prior art, the duct air conditioner of the present invention has a baffle, which blocks the gap between the fan cavity and the heat exchange cavity, plays a sealing role, and prevents the gas in the heat exchange cavity and the fan cavity from flowing from the gap under the partition, thereby ensuring the heat exchange efficiency of the duct air conditioner, and the baffle can be removed from the partition, which is convenient for disassembly and cleaning of the duct air conditioner.

[0007] Optionally, the shell includes a left side plate and a right side plate, a left side edge of the baffle plate abuts against the left side plate, and a right side edge of the baffle plate abuts against the right side plate.

[0008] Thus, the left and right sides of the baffle are respectively against the side plates of the air duct machine housing, thereby preventing air leakage from the two sides of the baffle and ensuring the sealing between the heat exchange cavity and the fan cavity.

[0009] Optionally, the water receiving tray includes a peripheral edge arranged on all sides, and the distance between the bottom of the partition and the bottom plate is greater than or equal to the height of the peripheral edge.

[0010] Therefore, the distance between the bottom of the partition and the bottom plate is greater than or equal to the height of the edge of the water receiving tray. The water receiving tray can be pulled out from under the partition without removing the partition and then the water receiving tray, thereby improving the convenience of disassembly and assembly of the water receiving tray.

[0011] Optionally, the baffle includes a fixing portion, a step portion and a sealing portion which are sequentially connected from top to bottom, the fixing portion is attached to and connected to the partition, the lower edge of the fixing portion extends forward to form the step portion, the front edge of the step portion extends downward to form the sealing portion, and the sealing portion abuts against the water receiving tray and / or the bottom plate.

[0012] Therefore, the baffle has a step structure, which can improve the sealing between the baffle and the partition and avoid air leakage.

[0013] Optionally, the baffle further includes a supporting portion, and a lower edge of the sealing portion extends forward to form the supporting portion.

[0014] Thus, the support portion contacts the bottom plate, which can limit the bottom position of the baffle and prevent the baffle from deflecting.

[0015] Optionally, the baffle includes at least one buckle, and the partition is provided with a slot matching the buckle.

[0016] In this way, the baffle can be quickly positioned and connected to the partition, and the buckle can also play a limiting role to prevent the baffle from moving.

[0017] Optionally, the buckle includes an extension portion, a first guide portion and a limiting portion connected in sequence from top to bottom, the extension portion is perpendicular to the partition, the upper edge of the baffle extends forward to form the extension portion, the front edge of the extension portion extends forward and downward to form the first guide portion, the front edge of the first guide portion extends downward to form the limiting portion, and the limiting portion is parallel to the partition.

[0018] Therefore, the vertically arranged limit portion is used to limit the position of the baffle in the front and rear directions to prevent the baffle from moving. The horizontally arranged extension portion allows the baffle to have some moving space, which is convenient for the installation and disassembly of the baffle. The inclined first guide portion can play a guiding role when the baffle is disassembled, thereby facilitating the removal of the baffle from the partition.

[0019] Optionally, the buckle further includes a second guide portion, and the lower edge of the limiting portion extends forward and downward to form the second guide portion.

[0020] Therefore, the second guide portion arranged obliquely can play a guiding role when the baffle is installed, so as to facilitate the snap connection with the partition.

[0021] Optionally, the distance between the limiting portion and the partition is between 0.5 mm and 1 mm.

[0022] Thus, the distance between the limiting portion and the partition is limited, ensuring that the baffles fit together to prevent air leakage, while allowing the buckle to have some room for movement, making it easier to disassemble and assemble the baffles.

[0023] Optionally, the width of the buckle is greater than or equal to 30 mm.

[0024] Therefore, the width of the buckle cannot be too narrow, otherwise it will affect the structural strength of the buckle and the buckle will be easily misplaced during installation.

[0025] Optionally, the baffle includes at least one lug, and a screw hole is provided on the lug.

[0026] Thus, the baffle and the partition can be connected by screws to ensure a reliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view of a duct machine according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0029] Figure 3 This is an internal structure diagram of the duct machine in the embodiment of the present invention;

[0030] Figure 4 It is a partial structural assembly diagram of the duct machine in the embodiment of the present invention;

[0031] Figure 5 A structural diagram of a baffle in an embodiment of the present invention;

[0032] Figure 6 is a front view of a baffle in an embodiment of the present invention;

[0033] Figure 7 It is a right side view of the baffle in the embodiment of the present invention;

[0034] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0035] Fig. 9 An exploded view of a partition and a baffle in an embodiment of the present invention;

[0036] Fig.10 It is an assembly diagram of the partition plate and the baffle plate in the embodiment of the present invention;

[0037] Fig.11 It is a rear view of the assembly state of the partition plate and the baffle plate in the embodiment of the present invention;

[0038] Fig.12 It is a cross-sectional view of the assembly state of the partition plate and the baffle plate in the embodiment of the present invention;

[0039] Fig.13 for Fig.12 A partial enlarged view of point C in the middle;

[0040] Description of reference numerals:

[0041] 11-top plate, 12-left plate, 13-right plate, 14-bottom plate, 15-fan cavity, 16-heat exchange cavity, 2-partition, 21-slot, 3-baffle, 31-fixing portion, 32-step portion, 33-sealing portion, 34-support portion, 35-buckle, 351-extension portion, 352-first guide portion, 353-limiting portion, 354-second guide portion, 36-first lug, 37-second lug, 38-screw hole, 4-water tray, 41-edge, 42-boss, 5-evaporator. DETAILED DESCRIPTION

[0042] In the description of the present invention, it should be noted that the terminology nouns in the various embodiments, such as "up", "down", "front", "back", "left", "right", etc., which indicate directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and defined operations and methods and structures in the specification. Such directional nouns do not constitute a limitation on the present invention.

[0043] A coordinate system XYZ is provided in the drawings of the embodiments of the present invention, wherein the positive direction of X represents the front, the reverse direction of X represents the back, the positive direction of the Y axis represents the top, the reverse direction of the Y axis represents the bottom, the positive direction of the Z axis represents the right, and the reverse direction of the Z axis represents the left.

[0044] The “inside” and “outside” mentioned in the embodiments of the present invention refer to a shell structure, where the side close to the center of the shell is the inside, and the side far from the center of the shell is the outside.

[0045] In the description of the present invention, it should be noted that the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0046] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0048] Combination Figures 1 to 13 As shown, an embodiment of the present invention provides a duct air conditioner installed in a suspended ceiling for adjusting the indoor air environment. The duct air conditioner includes a housing, a return air port is provided at the bottom (in the opposite direction of the Y axis) of the housing, an air outlet is provided at the front (in the positive direction of the X axis), and a fan assembly and a heat exchange assembly are provided in the housing. When the duct air conditioner is working, the gas in the environment enters the housing from the return air port and is blown out from the air outlet after heat exchange.

[0049] Combination Figures 1 to 4 As shown, the shell of the duct machine includes a top plate 11 arranged on the upper side (positive direction of the Y axis), a bottom plate 14 arranged on the lower side (negative direction of the Y axis), a back plate (not shown in the figure) arranged on the rear side (negative direction of the X axis), a left side plate 12 arranged on the left side (negative direction of the Z axis) and a right side plate 13 arranged on the right side (positive direction of the Z axis), and a cavity for installing internal components is formed among the top plate 11, the bottom plate 14, the back plate, the left side plate 12 and the right side plate 13.

[0050] A partition 2 is provided in the shell, and the left and right sides of the partition 2 are connected to the left plate 12 and the right plate 13 respectively. The upper edge of the partition 2 is against the top plate 11, and the partition 2 plays the role of a skeleton support to ensure the structural strength of the shell. At the same time, the partition 2 divides the internal space of the shell into two parts. The internal space located in the front side of the partition 2 (positive direction of the X axis) is the heat exchange chamber 16, and the internal space located in the rear side of the partition 2 (negative direction of the X axis) is the fan chamber 15. The fan chamber 15 is connected to the return air port, and the heat exchange chamber 16 is connected to the air outlet. The fan assembly (not shown in the figure) is installed in the fan chamber 15, and the heat exchange assembly is installed in the heat exchange chamber 16. When the duct air conditioner is working, the ambient air is sucked in from the return air port, and the fan assembly transports the gas in the fan chamber 15 to the heat exchange chamber 16, and blows it out from the air outlet after heat exchange by the heat exchange assembly to achieve air conditioning. The partition plate 2 separates the fan chamber 15 from the heat exchange chamber 16 to prevent the gas in the shell from freely flowing between the fan chamber 15 and the heat exchange chamber 16, thereby ensuring the heat exchange efficiency.

[0051] A heat exchange component is installed in the heat exchange chamber 16, and the heat exchange component includes an evaporator 5 and a water receiving pan 4. The water receiving pan 4 is arranged on the bottom plate 14, and the evaporator 5 is arranged above the water receiving pan 4. A heat exchange medium is introduced into the evaporator 5, and the temperature of the gas flowing through the evaporator 5 will change, completing the heat exchange. The water receiving pan 4 is used to hold the condensed water generated by the evaporator 5 to prevent the condensed water from dripping onto the ceiling or indoors to pollute the environment. The water receiving pan 4 is provided with a drainage nozzle, which can drain the accumulated water in the water receiving pan 4.

[0052] After the duct machine has been used for a long time, the water receiving pan 4 is prone to accumulate dirt, and the water receiving pan 4 needs to be cleaned regularly to avoid affecting the drainage effect and the air quality of the duct machine. The evaporator 5 is connected to the gas-liquid pipeline for conveying the heat exchange medium. To remove the evaporator 5, the gas-liquid pipeline needs to be disconnected first, which is inconvenient to disassemble and assemble. In addition, the pipeline of the evaporator 5 will have residual heat exchange medium, and there are certain safety risks in disassembling and assembling the evaporator 5. Therefore, the evaporator 5 of the duct machine in this embodiment is connected to the top plate 11 and / or the side plate of the shell, and the weight of the evaporator 5 is borne by the top plate 11, the left side plate 12, and the right side plate 13. The water receiving pan 4 will not be subjected to the pressure of the evaporator 5 and will not play a supporting role. There is no connection between the water receiving pan 4 and the evaporator 5. When disassembling and cleaning the water receiving pan 4, it can be removed separately without disassembling the evaporator 5 first, thereby avoiding the cumbersome operation of disassembling and assembling the evaporator 5.

[0053] In order to facilitate the removal of the water tray 4, there is a gap between the bottom of the partition 2 and the bottom plate 14 to form a clearance structure. When the water tray 4 is removed, it can be directly pulled out from under the partition 2 without removing the partition 2 first, saving work. At the same time, the partition 2 does not need to be removed during the disassembly of the duct machine for cleaning or maintenance. The partition 2 can serve as a support for the shell frame to ensure the structural strength of the shell and prevent the shell from being deformed due to the weight of the evaporator 5.

[0054] The water receiving tray 4 is provided with a surrounding edge 41 around it, so that the water receiving tray 4 has a certain water storage space to prevent water from flowing out from around the water receiving tray 4. In order to prevent the partition 2 from interfering with the movement of the water receiving tray 4, the distance between the bottom of the partition 2 and the bottom plate 14 is greater than or equal to the height of the surrounding edge 41, so that the water receiving tray 4 can be directly pulled out from under the partition 2 when disassembled.

[0055] Furthermore, an upwardly protruding boss 42 is provided in the middle of the water receiving pan 4, and the bottom of the evaporator 5 contacts the boss 42 to form a sealing structure, thereby preventing the air in the heat exchange chamber 16 from leaking out from the gap between the evaporator 5 and the water receiving pan 4 without passing through the evaporator 5 for heat exchange, thereby ensuring the heat exchange efficiency.

[0056] In addition, the boss 42 serves to limit the bottom height of the evaporator 5 to prevent the surrounding edge 41 from interfering with the evaporator 5 when the water receiving tray 4 moves. Therefore, the height of the boss 42 is greater than or equal to the height of the surrounding edge 41. In order to prevent the partition 2 from interfering with the movement of the water receiving tray 4, the distance between the bottom of the partition 2 and the bottom plate 14 is greater than or equal to the height of the boss 42, that is, the height of the gap between the partition 2 and the bottom plate 14 is greater than or equal to the thickness of the thickest part of the water receiving tray 4, so that the water receiving tray 4 can move backward horizontally and be pulled out from under the partition 2.

[0057] In the duct air conditioner of the above embodiment, there is a gap between the partition 2 and the bottom plate 14. If the gas between the heat exchange chamber 16 and the fan chamber 15 flows through the gap, gas that has not undergone heat exchange will be blown out from the air outlet, thereby affecting the heat exchange efficiency of the duct air conditioner.

[0058] Combination Figure 1 , Figure 2 , Figures 9 to 13 As shown, a baffle 3 is arranged in the housing of the duct air conditioner to seal the gap between the partition 2 and the bottom plate 14. The baffle 3 is connected to the lower part of the partition 2 and can be removed independently. After the baffle 3 is assembled with the partition 2, the bottom of the baffle 3 abuts against the bottom plate 14.

[0059] When the water collecting pan 4 needs to be disassembled and cleaned, the baffle 3 must be removed first, and then the water collecting pan 4 must be moved out from under the partition 2; after the water collecting pan 4 is installed and reset, the baffle 3 is connected and assembled with the partition 2. The baffle 3 and the partition 2 cooperate to form a sealing structure, separating the fan cavity 15 and the heat exchange cavity 16, preventing the gas from flowing from the gap under the partition 2, thereby ensuring the heat exchange efficiency of the duct machine.

[0060] In other embodiments, after the baffle 3 is assembled with the partition 2, the lower portion of the baffle 3 abuts against the surrounding edge 41 on the rear side of the water receiving tray 4, and can also close the gap between the fan cavity 15 and the heat exchange cavity 16 to ensure the heat exchange efficiency of the duct air conditioner.

[0061] Furthermore, in order to avoid air leakage on both sides of the baffle 3, the left edge of the baffle 3 abuts against the left plate 12, and the right edge of the baffle 3 abuts against the right plate 13, so that there is no gap on both sides of the baffle 3, thereby ensuring the sealing between the heat exchange chamber 16 and the fan chamber 15.

[0062] Combination Figures 5 to 8As shown, the baffle 3 has a step structure to improve the sealing performance. Specifically, the baffle 3 includes a fixing portion 31, a step portion 32, a sealing portion 33 and a supporting portion 34 which are connected in sequence from top to bottom. The fixing portion 31 is arranged in parallel with the partition 2, and is used to fit the partition 2 so that there is no gap between the partition 2 and the baffle 3. The fixing portion 31 is also used to connect the partition 2 so that the position of the baffle 3 is fixed. The lower edge of the fixing portion 31 extends forward to form a step portion 32, and the step portion 32 is perpendicular to the partition 2. The fixing portion 31 and the step portion 32 form a step structure, which can improve the sealing performance between the baffle 3 and the partition 2 and avoid air leakage. The front edge of the step portion 32 extends downward to form a sealing portion 33, which is parallel to the partition 2, and its bottom is against the bottom plate 14, blocking the gap between the partition 2 and the bottom plate 14, and closing the gas flow channel between the heat exchange chamber 16 and the fan chamber 15. The lower edge of the sealing portion 33 extends forward to form a supporting portion 34 . The supporting portion 34 is parallel to and in contact with the bottom plate 14 , and can limit the bottom position of the baffle 3 to prevent the baffle 3 from deflecting.

[0063] The baffle 3 is an integrated sheet metal part with good structural strength. The fixing portion 31 , the step portion 32 , the sealing portion 33 and the supporting portion 34 are formed by sheet metal processing, and the production cost is low.

[0064] Furthermore, four buckles 35 are provided on the fixing portion 31, and the intervals between each buckle 35 are uniform. The rear edge of the buckle 35 is connected to the upper edge of the fixing portion 31, and the buckle 35 is formed by sheet metal processing, and the entire baffle 3 is an integrated structure to ensure structural strength. Fig. 9 As shown, the partition 2 is provided with four slots 21 matching with the buckles 35. When the baffle 3 is assembled with the partition 2, the buckles 35 enter the slots 21, so that the baffle 3 and the partition 2 are quickly positioned and connected. After the baffle 3 and the partition 2 are assembled, the buckles 35 can also play a limiting role to prevent the baffle 3 from moving left and right.

[0065] In other embodiments, the number of the buckles 35 on the baffle 3 may be 1 to 10, and the number and positions of the slots 21 on the partition 2 correspond to the buckles 35 .

[0066] Furthermore, the width d of the buckle 35 is the horizontal distance between the left edge and the right edge of the buckle 35. The width d of the buckle 35 is limited not to be too narrow, otherwise the structural strength of the buckle 35 will be affected and the buckle 35 will be easily damaged. In this embodiment, the width d of the buckle 35 is greater than or equal to 30 mm, which ensures the stability of the overall structural strength of the baffle 3 and avoids damage to the buckle 35. The wider buckle 35 can prevent assembly dislocation.

[0067] Combination Figure 8 and Fig.13As shown, in order to facilitate the assembly and disassembly of the baffle 3, the buckle 35 includes a multi-section bending structure, which is formed by sheet metal processing. Specifically, the buckle 35 includes an extension portion 351, a first guide portion 352, a limit portion 353 and a second guide portion 354 connected in sequence from top to bottom. The upper edge of the fixing portion 31 extends forward to form an extension portion 351, and the extension portion 351 is perpendicular to the partition 2. The horizontally arranged extension portion 351 allows the baffle 3 to have some moving space, which is convenient for the installation and disassembly of the baffle 3. The front edge of the extension portion 351 extends forward and downward to form a first guide portion 352. The inclined first guide portion 352 can play a guiding role when the baffle 3 is disassembled, which is convenient for removing the baffle 3 from the partition 2. The angle between the first guide portion 352 and the extension portion 351 is between 120° and 150°. The front edge of the first guide portion 352 extends downward to form a limiting portion 353, which is parallel to the partition 2 and is used to limit the position of the baffle 3 in the front-to-back direction to prevent the baffle 3 from moving forward and backward. The lower edge of the limiting portion 353 extends forward and downward to form a second guide portion 354, which is inclined to guide the baffle 3 when it is installed, so as to facilitate the connection between the buckle 35 and the partition 2. The angle between the second guide portion 354 and the limiting portion 353 is between 120° and 150°.

[0068] Furthermore, the extension length of the extension part 351 is limited to ensure that the baffle 3 and the partition 2 fit each other in the assembled state to prevent air leakage. The extension length of the extension part 351 is slightly greater than the thickness of the partition 2, so that the distance L between the limit part 353 and the partition 2 is between 0.5mm and 1mm, so that the buckle 35 has some room for movement and will not be completely stuck, which is convenient for the disassembly and assembly of the baffle 3.

[0069] The baffle 3 also includes two lugs extending upward, namely, a first lug 36 and a second lug 37 on the left side, and a screw hole 38 is respectively provided on the first lug 36 and the second lug 37. When the baffle 3 and the partition 2 are assembled, they are first positioned and connected by the buckle 35 and the slot 21, and then fastened by screws to ensure reliable connection.

[0070] In other embodiments, the number of lugs may be 1 to 6, so as to ensure that the baffle 3 is securely installed and will not move or fall off.

[0071] 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 shell, a partition (2), a baffle (3) and a water receiving tray (4), wherein the partition (2) divides the internal space of the shell into a fan chamber (15) and a heat exchange chamber (16), the water receiving tray (4) is installed in the heat exchange chamber (16), the shell comprises a bottom plate (14), the water receiving tray (4) is arranged on the bottom plate (14), a gap is provided between the bottom of the partition (2) and the bottom plate (14), the baffle (3) is detachably connected to the partition (2), the lower part of the baffle (3) abuts against the water receiving tray (4) and / or the bottom plate (14), thereby closing the gap between the fan chamber (15) and the heat exchange chamber (16); the baffle (3) comprises: A fixed portion (31), a step portion (32) and a sealing portion (33) are connected to each other, the fixed portion (31) is attached to and connected with the partition (2), the lower edge of the fixed portion (31) extends forward to form the step portion (32), the front edge of the step portion (32) extends downward to form the sealing portion (33), the sealing portion (33) abuts against the water receiving tray (4) and / or the bottom plate (14), the baffle (3) further comprises a supporting portion (34), the lower edge of the sealing portion (33) extends forward to form the supporting portion (34); the baffle (3) comprises at least one buckle (35), and the partition (2) is provided with a buckle groove (21) matching the buckle (35).

2. The air duct machine according to claim 1, characterized in that: The shell comprises a left side plate (12) and a right side plate (13); the left side edge of the baffle plate (3) abuts against the left side plate (12), and the right side edge of the baffle plate (3) abuts against the right side plate (13).

3. The air duct machine according to claim 1, characterized in that: The water receiving tray (4) comprises a peripheral edge (41) arranged on all sides, and the distance between the bottom of the partition (2) and the bottom plate (14) is greater than or equal to the height of the peripheral edge (41).

4. The air duct machine according to claim 1, characterized in that: The buckle (35) includes an extension portion (351), a first guide portion (352) and a limiting portion (353) which are connected in sequence from top to bottom, wherein the extension portion (351) is perpendicular to the partition (2), the upper edge of the baffle (3) extends forward to form the extension portion (351), the front edge of the extension portion (351) extends forward and downward to form the first guide portion (352), the front edge of the first guide portion (352) extends downward to form the limiting portion (353), and the limiting portion (353) is parallel to the partition (2).

5. The air duct machine according to claim 4, characterized in that: The buckle (35) further comprises a second guide portion (354), and the lower edge of the limiting portion (353) extends forward and downward to form the second guide portion (354).

6. The air duct machine according to claim 4, characterized in that: The distance between the limiting portion (353) and the partition (2) is between 0.5 mm and 1 mm.

7. The air duct machine according to claim 4, characterized in that: The width of the buckle (35) is greater than or equal to 30 mm.

8. The duct machine according to any one of claims 1 to 3, characterized in that: The baffle (3) comprises at least one lug, and a screw hole (38) is provided on the lug.

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