A duct machine

Abstract

The present invention provides a duct machine, comprising a shell, a partition 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 shell comprises a bottom plate, a gap is provided between the bottom of the partition and the bottom plate, the water receiving tray is arranged on the bottom plate, an upwardly extending baffle is arranged at the rear of the water receiving tray, the upper edge of the baffle is higher than the lower edge of the partition, and the baffle is in contact with the partition. The duct machine of the present invention is provided with a baffle on the water receiving tray, the baffle can block the gap between the partition and the bottom plate, play a sealing role, prevent the gas in the heat exchange chamber and the fan chamber from flowing from the gap below the partition, and ensure the heat exchange efficiency of the duct machine, and in addition, when the water receiving tray is installed, the baffle can play a positioning role, which is convenient for the water receiving tray to be installed in a set position.

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] A partition is installed inside the duct air conditioner, dividing the internal space 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, a clearance gap needs to be set 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 to ensure the heat exchange efficiency of the duct fan.

[0005] In order to solve the above problems, the present invention provides a duct machine, comprising a shell, a partition and a water collecting tray, the partition divides the internal space of the shell into a fan chamber and a heat exchange chamber, the shell comprises a bottom plate, and there is a gap between the bottom of the partition and the bottom plate, the water collecting tray is arranged on the bottom plate, and an upwardly extending baffle is provided at the rear of the water collecting tray, the upper edge of the baffle is higher than the lower edge of the partition, and the baffle is in contact with the partition.

[0006] Compared with the prior art, the duct air conditioner of the present invention is provided with a baffle on the water receiving tray, which can block the gap between the partition and the bottom plate to play a sealing role, thereby preventing the gas in the heat exchange chamber and the fan chamber from flowing from the gap under the partition, thereby ensuring the heat exchange efficiency of the duct air conditioner. In addition, when the water receiving tray is installed, the baffle can play a positioning role, thereby facilitating the installation of the water receiving tray in the set position.

[0007] Optionally, a vertical distance between an upper edge of the baffle and a lower edge of the partition is greater than or equal to 30 mm.

[0008] Therefore, by limiting the height of the contact portion between the baffle and the partition, the sealing effect between the baffle and the partition can be ensured, thereby achieving the effect of preventing air leakage.

[0009] Optionally, the shell includes a left side plate and a right side plate, a left side edge of the baffle abuts against the left side plate, and a right side edge of the baffle abuts against the right side plate.

[0010] Thus, the left and right sides of the baffle are respectively against the side plates of the air duct housing, and air will not leak from both sides of the baffle, thereby ensuring the sealing between the heat exchange cavity and the fan cavity.

[0011] Optionally, the baffle includes a fitting portion, a step portion and a fixing portion which are sequentially connected from top to bottom, the fitting portion is fitted with the partition, the lower edge of the fitting portion extends forward to form the step portion, the front edge of the step portion extends downward to form the fixing portion, and the fixing portion is connected to the water receiving tray.

[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, a notch is provided in the middle of the fitting portion, and a connecting structure is provided on the partition at a position corresponding to the notch.

[0014] Therefore, a notch is provided on the baffle to make way for the connecting structure on the partition, so as to facilitate the connection of the partition with other components.

[0015] Optionally, at least one inserting piece is provided on the blocking piece, and a slot matching the inserting piece is provided on the partition.

[0016] Thus, the baffle and the partition plate can be quickly positioned and connected by cooperating with the insert and the slot, and the insert can also play a limiting role to prevent the water receiving tray from moving.

[0017] Optionally, the width of the insert is greater than or equal to 30 mm.

[0018] Thus, the width of the insert is limited, ensuring that the insert has a certain structural strength and that the insert will not be misplaced during installation.

[0019] Optionally, at least one handle is provided on the baffle.

[0020] Therefore, a handle is provided to facilitate the movement of the water receiving tray. When the duct unit is disassembled and cleaned, the water receiving tray can be pulled out of the heat exchange chamber by the handle.

[0021] 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.

[0022] 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.

[0023] Optionally, the duct air conditioner also includes an evaporator, which is located above the water receiving tray. A boss is provided in the middle of the water receiving tray, and the bottom of the evaporator is in contact with the boss. The height of the boss is greater than or equal to the height of the surrounding edge, and the distance between the bottom of the partition and the bottom plate is greater than or equal to the height of the boss.

[0024] Therefore, the boss provided on the water receiving tray can limit the bottom position of the evaporator, avoid interference between the surrounding edge and the evaporator when the water receiving tray is moved, and facilitate the disassembly and assembly of the water receiving tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an internal structure diagram of the duct machine in the embodiment of the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0027] Figure 3 A structural diagram of a water receiving tray in an embodiment of the present invention;

[0028] Figure 4 It is a rear view of the water receiving tray in the embodiment of the present invention;

[0029] Figure 5 It is a right side view of the water receiving tray in the embodiment of the present invention;

[0030] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0031] Figure 7 This is a schematic diagram of the assembly state of the water receiving tray in an embodiment of the present invention;

[0032] Figure 8 The assembly structure of the partition plate and the water receiving tray in another embodiment of the present invention is shown in FIG. Figure 1 ;

[0033] Fig. 9 for Figure 8 A partial enlarged view of the center C

[0034] Fig.10 The assembly structure of the partition plate and the water receiving tray in another embodiment of the present invention is shown in FIG. Figure 2 ;

[0035] Fig.11 It is a rear view of the internal structure of the air duct machine in another embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 11-top plate, 12-left side plate, 13-right side plate, 14-bottom plate, 15-fan cavity, 16-heat exchange cavity, 2-partition plate, 21-slot, 3-water tray, 31-edge, 32-boss, 4-blocking piece, 41-fitting part, 42-step part, 43-fixing part, 44-insertion piece, 45-handle, 46-notch, 5-evaporator. DETAILED DESCRIPTION

[0038] 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.

[0039] A coordinate system XYZ is provided in the drawings of the embodiments of the present invention, wherein the positive direction of the X axis represents the front, the negative direction of the X axis represents the back, the positive direction of the Y axis represents the top, the negative direction of the Y axis represents the bottom, the positive direction of the Z axis represents the right, and the negative direction of the Z axis represents the left.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Combination Figures 1 to 7As 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.

[0045] Combination Figure 1 and Figure 7 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.

[0046] 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.

[0047] 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 3. The water receiving pan 3 is arranged on the bottom plate 14, and the evaporator 5 is arranged above the water receiving pan 3. 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 3 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. A drainage nozzle is provided on the water receiving pan 3 to drain the accumulated water in the water receiving pan 3.

[0048] After the duct machine has been used for a long time, the water receiving pan 3 is prone to accumulate dirt, and the water receiving pan 3 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 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 3 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 3 and the evaporator 5. When disassembling and cleaning the water receiving pan 3, it can be removed separately without disassembling the evaporator 5 first, thereby avoiding the cumbersome operation of disassembling and assembling the evaporator 5.

[0049] In order to facilitate the removal of the water tray 3, 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 3 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 and cleaning or maintenance of the duct machine. The partition 2 can serve as the skeleton of the shell to play a supporting role, ensure the structural strength of the shell, and prevent the shell from being deformed due to the weight of the evaporator 5.

[0050] Combination Figure 3 and Figure 7 As shown, the water receiving tray 3 is provided with a surrounding edge 31 around it, so that the water receiving tray 3 has a certain water storage space to prevent water from flowing out from around the water receiving tray 3. In order to prevent the partition 2 from interfering with the movement of the water receiving tray 3, 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 31, so that the water receiving tray 3 can be directly pulled out from under the partition 2 when disassembled.

[0051] Furthermore, an upwardly protruding boss 32 is provided in the middle of the water receiving tray 3, and the bottom of the evaporator 5 contacts the boss 32 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 tray 3 without passing through the evaporator 5 for heat exchange, thereby ensuring the heat exchange efficiency.

[0052] In addition, the boss 32 serves to limit the height of the bottom of the evaporator 5 to prevent the surrounding edge 31 from interfering with the evaporator 5 when the water receiving tray 3 moves. Therefore, the height of the boss 32 is greater than or equal to the height of the surrounding edge 31. In order to prevent the partition 2 from interfering with the movement of the water receiving tray 3, 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 32, 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 3, so that the water receiving tray 3 can move backward horizontally and be pulled out from under the partition 2.

[0053] 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.

[0054] Combination Figures 1 to 7 As shown, in the duct unit of this embodiment, a baffle 4 extending upward is provided at the rear of the water tray 3. The baffle 4 has a certain extension height. When the water tray 3 is installed to the preset position, the upper edge of the baffle 4 is higher than the lower edge of the partition 2, and the baffle 4 fits with the partition 2, closing the gap between the partition 2 and the bottom plate 14, playing a role in sealing and preventing air leakage, preventing the gas in the heat exchange chamber 16 and the fan chamber 15 in the shell from flowing from the gap below the partition 2, and ensuring the heat exchange efficiency of the duct unit.

[0055] Combination Figure 7 As shown, the arrow F in the figure points to the moving direction of the water receiving tray 3 when it is installed. The water receiving tray 3 moves forward under the partition 2. When the water receiving tray 3 moves to the preset position, the baffle 4 abuts against the partition 2, interfering with the water receiving tray 3 continuing to move forward. The baffle 4 plays a positioning role.

[0056] Combination Figure 2 As shown, the vertical height H between the upper edge of the baffle 4 and the lower edge of the partition 2 is related to the sealing effect of the baffle 4. If H is too small, there is a gap between the baffle 4 and the partition 2 for air leakage. Therefore, H is limited to be greater than or equal to 30 mm to ensure the sealing effect between the fan cavity 15 and the heat exchange cavity 16.

[0057] Combination Figure 4 As shown, the baffle 4 has a step structure to improve the sealing effect with the partition 2. Specifically, the baffle 4 includes a fitting portion 41, a step portion 42 and a fixing portion 43 which are sequentially connected from top to bottom. The fitting portion 41 is arranged parallel to the partition 2 and is used to fit the partition 2 so that there is no gap between the partition 2 and the baffle 4. The lower edge of the fitting portion 41 extends forward to form a step portion 42, and the step portion 42 is perpendicular to the partition 2. The fitting portion 41 and the step portion 42 form a step structure, which can improve the sealing between the baffle 4 and the partition 2 and avoid air leakage. The front edge of the step portion 42 extends downward to form a fixing portion 43, and the fixing portion 43 fits with the rear wall of the water receiving tray 3. The fitting portion has a certain height to prevent the baffle 4 from deflecting.

[0058] Furthermore, the baffle 4 is an integrally formed sheet metal part with good structural strength. The fitting portion 41, the step portion 42 and the fixing portion 43 are formed by sheet metal processing, which is convenient for processing. The fixing portion 43 is chemically connected to the water receiving tray 3 by an adhesive or mechanically connected by screws. If the baffle 4 is deformed or damaged, it can be removed and replaced separately to ensure the heat exchange effect of the duct air conditioner.

[0059] Combination Figures 8 to 11 As shown, this embodiment provides another duct air conditioner. Compared with the duct air conditioner described in the above embodiment, the structure of the baffle 4 arranged on the water receiving tray 3 is improved in this embodiment.

[0060] Specifically, in order to avoid air leakage on both sides of the baffle 4, the left edge of the baffle 4 abuts against the left plate 12, and the right edge of the baffle 4 abuts against the right plate 13, so that there is no gap on both sides of the baffle 4, thereby ensuring the sealing between the heat exchange chamber 16 and the fan chamber 15.

[0061] Combination Figure 8 and Fig. 9 As shown, the baffle 4 is provided with four inserts 44, and the intervals between each insert 44 are uniform. The insert 44 extends from the upper edge of the fitting portion 41 to the front side, and is formed by bending and processing through a sheet metal process. The entire baffle 4 is an integrated structure to ensure structural strength. The partition 2 is provided with four slots 21 that match the insert 44. The insert 44 is perpendicular to the partition 2, which is convenient for entering the slot 21. When the baffle 4 is assembled with the partition 2, the insert 44 enters the slot 21, so that the baffle 4 and the partition 2 are quickly positioned and connected. After the baffle 4 is assembled with the partition 2, the insert 44 can play a limiting role to prevent the water tray 3 from moving left and right.

[0062] In other embodiments, the number of the inserting pieces 44 on the blocking piece 4 may be 1 to 10, and the number and positions of the slots 21 on the partition plate 2 correspond to the inserting pieces 44 .

[0063] Furthermore, the width d of the insert 44 is the horizontal distance between the left edge and the right edge of the insert 44. The width of the insert 44 cannot be too narrow, otherwise it will affect the structural strength of the insert 44 and the insert 44 will be easily damaged. In this embodiment, the width d of the insert 44 is greater than or equal to 30 mm, which ensures the stability of the overall structural strength of the baffle 4 and avoids damage to the insert 44. The wider insert 44 can prevent assembly dislocation.

[0064] Combination Fig.10 As shown, a handle 45 is provided on the left side of the baffle 4, and the handle 45 extends from the upper edge of the fitting portion 41 to the rear side, and is formed by bending and processing through a sheet metal process. In other embodiments, a handle 45 can be provided on each of the left and right sides of the baffle 4, and the handle 45 can also be provided in the middle of the baffle 4. When the duct air conditioner is disassembled and cleaned, the water receiving tray 3 can be pulled out from under the partition 2 by pulling the handle 45, which is easy to operate and improves the convenience of moving the water receiving tray 3.

[0065] The partition plate 2 is provided with a plurality of connection structures, such as screw holes, slots, etc., for fixing and installing other components on the partition plate 2. Fig.10 and Fig.11As shown, in this embodiment, a notch 46 is provided in the middle of the fitting portion 41, and the position of the notch 46 corresponds to the position of the two screw holes on the partition 2, which is used to make room for the screw holes and facilitate the connection of other components to the partition 2. In other embodiments, the position and size of the notch 46 can be adjusted according to the connection structure on the partition 2 to avoid the blocking sheet 4 blocking the connection part and causing assembly inconvenience.

[0066] 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) and a water receiving tray (3), wherein the partition (2) divides the internal space of the shell into a fan chamber (15) and a heat exchange chamber (16), the shell comprises a bottom plate (14), a gap is provided between the bottom of the partition (2) and the bottom plate (14), the water receiving tray (3) is arranged on the bottom plate (14), and a baffle (4) extending upward is provided at the rear of the water receiving tray (3), the upper edge of the baffle (4) is higher than the lower edge of the partition (2), and the baffle (4) is in contact with the partition (2); the baffle ( 4) comprises a fitting portion (41), a step portion (42) and a fixing portion (43) connected in sequence from top to bottom, the fitting portion (41) fitting with the partition (2), the lower side edge of the fitting portion (41) extending forward to form the step portion (42), the front side edge of the step portion (42) extending downward to form the fixing portion (43), the fixing portion (43) connected with the water receiving tray (3); at least one inserting piece (44) is provided on the baffle (4), and a slot (21) matching the inserting piece (44) is provided on the partition (2).

2. The air duct machine according to claim 1, characterized in that: The vertical distance between the upper edge of the baffle (4) and the lower edge of the partition (2) is greater than or equal to 30 mm.

3. 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 (4) abuts against the left side plate (12), and the right side edge of the baffle (4) abuts against the right side plate (13).

4. The air duct machine according to claim 1, characterized in that: A notch (46) is provided in the middle of the fitting portion (41), and a connecting structure is provided on the partition (2) at a position corresponding to the notch (46).

5. The air duct machine according to claim 1, characterized in that: The width of the insert (44) is greater than or equal to 30 mm.

6. The air duct machine according to claim 1, characterized in that: At least one handle (45) is provided on the blocking piece (4).

7. The air duct machine according to claim 1, characterized in that: The water receiving tray (3) comprises a peripheral edge (31) 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 (31).

8. The air duct machine according to claim 7, characterized in that: It also includes an evaporator (5), the evaporator (5) is located above the water receiving tray (3), a boss (32) is provided in the middle of the water receiving tray (3), the bottom of the evaporator (5) is in contact with the boss (32), the height of the boss (32) is greater than or equal to the height of the surrounding edge (31), 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 boss (32).

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