Duct type air conditioner

Abstract

The invention relates to the technical field of air conditioning, and provides a duct type air conditioner which comprises a shell and a heat exchanger module, the shell comprises a rear back plate and two side plates, and the two side plates are connected to the two ends of the rear back plate in the left-right direction correspondingly to define a containing cavity with a front side opening; the heat exchanger module comprises a heat exchanger and a connecting piece, the connecting piece is arranged on the heat exchanger, the heat exchanger is located in the containing cavity, and the first fastening piece detachably penetrates through the connecting piece and the side plate from the front side. The first fastener is detachably arranged on the connecting piece and the side plate in a penetrating mode from the front side, the front side space of the shell is wide, after-sales disassembly and assembly operation of an operator is facilitated, and the maintenance efficiency is improved.

Description

Technical Field

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

[0002] Duct air conditioners are used to adjust indoor air and thus improve the indoor environment. Duct air conditioners are equipped with heat exchangers, which are used to adjust the temperature of the air flowing through them. Duct air conditioners are usually installed in small spaces such as corners or closets. When the heat exchanger needs to be disassembled for after-sales maintenance, it is not easy to disassemble and assemble the heat exchanger, and the operation efficiency is low. Summary of the invention

[0003] In view of this, the embodiments of the present application hope to provide a duct machine that is easy to disassemble and assemble a heat exchanger.

[0004] To achieve the above-mentioned purpose, the embodiment of the present application provides a duct machine, comprising:

[0005] The housing comprises a back plate and two side plates, wherein the two side plates are respectively connected to both ends of the back plate in the left and right directions to define a receiving cavity with a front opening;

[0006] The heat exchanger module comprises a heat exchanger and a connecting piece, wherein the connecting piece is arranged on the heat exchanger, the heat exchanger is located in the accommodating cavity, and a first fastener is detachably inserted through the connecting piece and the side plate from the front side.

[0007] In some embodiments, a flange is formed at the front end of the side panel, the connecting member is located on the outside of the shell, the left and right ends of the connecting member extend to the flange, and the first fastener is detachably inserted into the connecting member and the flange from the front side.

[0008] In some embodiments, the heat exchanger module includes a first fixing frame, a second fixing frame and a water receiving tray, the water receiving tray is arranged on the bottom side of the heat exchanger, the first fixing frame and the second fixing frame are respectively connected to two side plates of the heat exchanger along the left and right directions, and the first fixing frame and the second fixing frame are both connected to the water receiving tray.

[0009] In some embodiments, the first fixing frame and the second fixing frame both include a bracket, the bracket of the first fixing frame and the bracket of the second fixing frame are spaced apart in the left-right direction and connected to the water receiving tray, and the second fastener is detachably passed through the bracket and the water receiving tray from the front side.

[0010] In some embodiments, the bracket includes a support rod and a fixing ear, the support rod is located on the top side of the water receiving tray, the fixing ear is bent from the support rod toward the bottom side, the fixing ear is located on the front side of the water receiving tray, and the second fastener is detachably inserted into the fixing ear and the water receiving tray from the front side.

[0011] In some embodiments, the water receiving tray is formed with a water receiving groove and an upper opening communicated with the water receiving groove, and the bottom of the heat exchanger is inserted into the water receiving groove through the upper opening of the water receiving groove.

[0012] In some embodiments, both side surfaces of the bottom of the heat exchanger along the left-right direction are sealed with both side surfaces of the water receiving tank along the left-right direction through a first sealing layer.

[0013] In some embodiments, the inner surfaces of the side plates are covered with a thermal insulation layer, and both sides of the heat exchanger module along the left-right direction are pressed against the thermal insulation layer.

[0014] In some embodiments, the heat exchanger module includes inlet and outlet pipes, which are connected to the refrigerant pipe of the heat exchanger to input or output refrigerant. The shell includes an end plate and a pressure plate. The end plate connects the two side plates along the length direction and one end away from the heat exchanger. The end plate is formed with a pipe through-hole, and the front end of the end plate is formed with a take-in and put-out port connected to the pipe through-hole. The inlet and outlet pipes can enter the pipe through-hole through the take-in and put-out port. An open groove is formed on the periphery of the pressure plate, and the pressure plate is detachably connected to the end plate. The wall of the open groove is located on the side of the wall of the inlet and outlet pipe away from the pipe through-hole to limit the inlet and outlet pipe from entering the take-in and put-out port.

[0015] In some embodiments, the length direction of the side panel is consistent with the up-down direction, and the housing includes an end panel having an air outlet, and the end panel connects the upper ends of the two side panels.

[0016] In some embodiments, the housing includes a front cover plate, which covers a portion of the front opening of the accommodating cavity, and the other portion of the front opening of the accommodating cavity is a front air inlet. The connecting member is located below the front cover plate, and the connecting member abuts against the front cover plate.

[0017] In some embodiments, the duct machine includes a lower base plate and a shielding plate, the shielding plate is detachably connected to the lower base plate, the lower base plate is connected to the lower ends of the two side panels, the lower base plate is formed with a lower air inlet, and the shielding plate can shield one of the front air inlet and the lower air inlet.

[0018] The duct machine provided in the embodiment of the present application has a first fastener that is detachably inserted into the connecting piece and the side panel from the front, and the front space of the shell is wide. Even if the duct machine is installed in a corner or a closet, the side panel faces the wall or the closet plate, and the wall or the closet plate will not hinder the operator from removing or installing the first fastener from the front, thereby facilitating the operator's after-sales disassembly and assembly operations and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a duct machine in one embodiment of the present application;

[0020] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0021] Figure 3 for Figure 1 A schematic diagram of the partial structure shown, wherein the front cover is not shown;

[0022] Figure 4 This is a schematic diagram of the assembly process of the heat exchanger module and the housing in one embodiment of the present application;

[0023] Figure 5 A schematic diagram of a partial structure of a heat exchanger module in one embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the assembly of a heat exchanger and a water tray in one embodiment of the present application;

[0025] Figure 7 It is a structural schematic diagram of an air duct machine in another embodiment of the present application.

[0026] Description of Reference Numerals

[0027] Shell 1; accommodating chamber 1a; front air inlet 1ab; back plate 11; side plate 12; flange 121; end plate 13; pipe opening 13a; access opening 13b; air outlet 13c; pressing plate 14; opening slot 14a; front cover plate 15; shielding plate 16;

[0028] Heat exchanger module 2; heat exchanger 21; connecting member 22; first fixing frame 23; first fixing member 231; first guide groove 231a; second fixing frame 24; second fixing member 241; second guide groove 241a; water receiving tray 25; inlet and outlet pipes 26; bracket 201; support rod 2011; fixing ear 2012;

[0029] Control device 3; Fan 4;

[0030] A first fastener 100;

[0031] The second fastening member 200 . DETAILED DESCRIPTION

[0032] In the absence of conflict, the embodiments and technical features in the embodiments of the present application may be combined with each other, and the detailed descriptions in the specific implementation methods should be understood as explanations of the purpose of the present application and should not be regarded as improper limitations on the present application.

[0033] It should be noted that in the embodiments of the present application, the directions or positional relationships of "up", "down", "front", "back", "left", and "right" are based on Figure 1and Figure 2 The orientation or position relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The duct unit provided in the embodiment of the present application may be a wall-mounted duct unit. A wall-mounted duct unit means that the back plate 11 of the housing 1 can be used to fix the wall-mounted duct unit to a vertical mounting wall. For example, the mounting wall may be a vertical wall or a vertical plate. Taking the installation of the wall-mounted duct unit in a closet as an example, the back plate 11 of the housing 1 may be fixed to the vertical plate of the closet.

[0035] Duct machines are usually installed in small spaces, such as corners or closets. This results in the two side panels 12 of the housing 1 along the left and right directions usually facing the wall or the closet. In the related art, if the first fastener 100 is passed through the side panel 12 and the heat exchanger 21 from the left or right side from the outside of the housing 1, during the after-sales maintenance of the heat exchanger 21, there is insufficient maintenance space, and the wall or the panel will hinder the operator from removing the first fastener 100 with tools. On the other hand, the inner surfaces of the two side panels 12 along the left and right directions of the housing 1 are usually covered with an insulation layer. The first fastener 100 is passed through the side panels 12 on both sides. During the installation process, the first fastener 100 needs to penetrate the insulation layer, which not only affects the insulation effect, but also may cause the side panel 12 to sag, affecting the appearance.

[0036] See also Figures 1 to 4 The embodiment of the present application provides a duct air conditioner, which includes a housing 1 and a heat exchanger module 2. The housing 1 includes a back plate 11 and two side plates 12. The two side plates 12 are respectively connected to the two ends of the back plate 11 in the left and right directions to define a receiving cavity 1a with a front opening. That is, the rear end of the side plate 12 is connected to the back plate 11.

[0037] The heat exchanger module 2 includes a heat exchanger 21 and a connector 22, the connector 22 is arranged on the heat exchanger 21, the heat exchanger 21 is located in the accommodating cavity 1a, and the first fastener 100 is detachably inserted through the connector 22 and the side plate 12 from the front side. In other words, the connector 22 and the side plate 12 are detachably connected through the first fastener 100.

[0038] It should be noted that the front refers to the side facing the operator, and the rear refers to the direction opposite to the front. The left-right direction is perpendicular to the front-back direction.

[0039] The duct air conditioner provided in the embodiment of the present application has a first fastener 100 that is detachably inserted through the connecting piece 22 and the side panel 12 from the front, and the front space of the housing 1 is wide. Even if the duct air conditioner is installed in a corner or a closet, the side panel 12 faces the wall or the closet plate, and the wall or the closet plate will not hinder the operator from removing or installing the first fastener 100 from the front, thereby facilitating the operator's after-sales disassembly and assembly operations and improving maintenance efficiency.

[0040] For example, in one embodiment, a first fixing hole is formed at the front end of the side plate 12, and second fixing holes are formed at both left and right ends of the connecting member 22, and the first fastener 100 is inserted from the front side into the second fixing hole and the first fixing hole. With such a design, the operator can visually check whether the second fixing hole and the first fixing hole are aligned, avoiding the blind insertion problem caused by the first fastener 100 being inserted from both left and right sides, thereby reducing the difficulty of installing the first fastener 100.

[0041] The first fastener 100 includes but is not limited to a screw or a bolt, etc. Taking the first fastener 100 as a screw as an example, at least one of the second fixing hole and the first fixing hole is a threaded hole threadably matched with the first fastener 100 .

[0042] In one embodiment, please refer to Figure 3 to Figure 4 , a flange 121 is formed at the front end of the side plate 12, the connector 22 is located outside the housing 1, the left and right ends of the connector 22 extend to the flange 121, and the first fastener 100 is detachably inserted through the connector 22 and the flange 121 from the front side. Exemplarily, the left and right ends of the connector 22 are formed with second fixing holes, and the flange 121 is formed with a first fixing hole, which may be a threaded hole. The operator can directly check the connector 22 and the first fastener 100, reducing the difficulty of loading and unloading operations.

[0043] In one embodiment, the back plate 11 and the side plates 12 can both be made of metal materials. In this way, the back plate 11 and the side plates 12 have good structural strength.

[0044] In one embodiment, please refer to Figures 3 to 6 The heat exchanger module 2 includes a first fixing frame 23, a second fixing frame 24 and a water receiving tray 25. The water receiving tray 25 is arranged on the bottom side of the heat exchanger 21. The first fixing frame 23 and the second fixing frame 24 are respectively connected to the two side plates of the heat exchanger 21 along the left and right directions, and the first fixing frame 23 and the second fixing frame 24 are both connected to the water receiving tray 25.

[0045] The water receiving pan 25 is used to carry condensed water from the heat exchanger 21. Condensed water is liquid water produced by condensation of moisture in the air after the refrigerant in the heat exchanger 21 absorbs heat from the air. The water receiving pan 25 and the heat exchanger 21 are fixed together by the first fixing frame 23 and the second fixing frame 24. In this way, during the process of assembling the heat exchanger module 2 and the housing 1, the heat exchanger 21 and the water receiving pan 25 can be installed in the accommodating cavity 1a simultaneously.

[0046] In one embodiment, please refer to Figures 3 to 6 The first fixing frame 23 and the second fixing frame 24 both include a bracket 201. The bracket 201 of the first fixing frame 23 and the bracket 201 of the second fixing frame 24 are arranged at intervals along the left-right direction and connected to the water receiving tray 25. The second fastener 200 is detachably inserted through the bracket 201 and the water receiving tray 25 from the front side. In the case where the heat exchanger 21 and the water receiving tray 25 need to be loaded and unloaded separately in the later stage, the operator can remove or install the second fastener 200 from the front side, and the walls on the left and right sides or the panels of the closet will not hinder the operator from removing or installing the second fastener 200 from the front side, which is convenient for the operator to remove and install. For example, in the case where only the heat exchanger 21 needs to be removed, the first fastener 100 and the second fastener 200 can be removed from the front side respectively, so that the heat exchanger 21 can be removed alone without moving the water receiving tray 25.

[0047] In one embodiment, the second fastener 200 includes but is not limited to a screw or a bolt.

[0048] In one embodiment, the heat exchanger 21 includes a coil and two side plates. The two ends of the coil in the left and right directions are respectively fixed to the two side plates. The heat exchanger 21 is generally a plate-shaped structure. The side plates are used to fix the coil. The first fixing frame 23 and the second fixing frame 24 are connected to the side plates to prevent the first fixing frame 23 and the second fixing frame 24 from damaging the coil. The coil is used to circulate refrigerant and perform heat exchange with the airflow flowing through the coil to adjust the temperature of the airflow.

[0049] Exemplarily, in one embodiment, the coil includes a plurality of straight tubes and a plurality of elbows, and the two ends of the straight tubes in the left and right directions are respectively passed through two side plates, and the ends of each two straight tubes are connected through an elbow, so that the plurality of straight tubes and the plurality of elbows together constitute a continuous pipeline for circulating refrigerant. The side plate may be formed with a plurality of spaced plug holes, and the plug holes are used to pass the straight tubes. The side plate can keep a suitable distance between the plurality of straight tubes, and play a role of fixing and limiting.

[0050] In one embodiment, please refer to Figures 5 and 6The bracket 201 includes a support rod 2011 and a fixing ear 2012, the support rod 2011 is located at the top side of the water receiving tray 25, the fixing ear 2012 is bent from the support rod 2011 to the bottom side, the fixing ear 2012 is located at the front side of the water receiving tray 25, and the second fastener 200 is detachably inserted through the fixing ear 2012 and the water receiving tray 25 from the front side. With such a design, the bracket 201 has a simple structure and low cost.

[0051] For example, in one embodiment, the fixing ear 2012 is formed with a third fixing hole, the water receiving tray 25 is formed with a fourth fixing hole, and the second fastener 200 is inserted into the third fixing hole and the fourth fixing hole from the front side. With such a design, the operator can visually check whether the third fixing hole and the fourth fixing hole are aligned, thereby avoiding the problem of blind insertion of the second fastener 200 and reducing the difficulty of installing the second fastener 200.

[0052] In one embodiment, please refer to Figures 3 to 6 The first fixing frame 23 includes a first fixing member 231, and the second fixing frame 24 includes a second fixing member 241. The first fixing member 231 connects one of the side plates and one of the brackets 201, and the second fixing member 241 connects another side plate and another bracket 201. The first fixing member 231 and the second fixing member 241 are arranged at intervals along the left and right directions to form a placement cavity. The first fixing member 231 forms a first guide groove 231a extending along the top and bottom directions, and the second fixing member 241 forms a second guide groove 241a extending along the top and bottom directions. The filter screen is inserted into the placement cavity from the top side, and the two ends of the filter screen along the left and right directions are respectively located in the first guide groove 231a and the second guide groove 241a. The first fixing member 231 is an integrally formed structure. In this way, the assembly process of the first fixing member 231 can be reduced. The first fixing member 231 and the second fixing member 241 can be used to strengthen the strength of the side plate and to form the first guide groove 231a and the second guide groove 241a, so as to achieve the purpose of dual use of one object.

[0053] The filter can be used to filter the airflow. Exemplarily, the functions of the filter include but are not limited to filtering dust in the airflow and / or sterilizing.

[0054] Exemplarily, the first fixing member 231 may be connected to the bracket 201 in a non-detachable or detachable manner. For example, the first fixing member 231 is welded to the bracket 201. Exemplarily, the second fixing member 241 may be connected to the bracket 201 in a non-detachable or detachable manner. For example, the second fixing member 241 is welded to the bracket 201.

[0055] In one embodiment, the second fixing member 241 includes a positioning plate and a guide rail, the guide rail is detachably disposed on the front side of the positioning plate, and the guide rail and the positioning plate jointly define a second guide groove 241a. The positioning plate and the guide rail are manufactured independently of each other, that is, the positioning plate and the guide rail are separate parts, and the guide rail is detachably connected to the positioning plate to facilitate loading and unloading of the guide rail. At least one sensor is usually disposed on the side plate of the heat exchanger 21, and the guide rail can be removed to expose the sensor disposed on the side plate, so as to facilitate the inspection of the sensor.

[0056] In one embodiment, the water receiving tray 25 is formed with a water receiving groove and an upper opening connected to the water receiving groove, and the bottom of the heat exchanger 21 is inserted into the water receiving groove through the upper opening of the water receiving groove. The water receiving groove is used to store condensed water, and the bottom of the heat exchanger 21 is inserted into the water receiving groove, so that the condensed water on the heat exchanger 21 can flow into the water receiving groove along the surface of the heat exchanger 21 under the action of gravity or the like.

[0057] In one embodiment, both sides of the bottom of the heat exchanger 21 along the left and right directions are sealed with both sides of the water receiving tank along the left and right directions through a first sealing layer. In this way, air leakage is prevented from occurring in the gap between the two sides of the bottom of the heat exchanger 21 along the left and right directions and the two sides of the water receiving tank along the left and right directions.

[0058] The first sealing layer may be made of a flexible material. For example, the first sealing layer may be made of a sponge.

[0059] In one embodiment, the inner surface of the side plate 12 is covered with an insulation layer, and both sides of the heat exchanger module 2 along the left and right directions are pressed against the insulation layer. Exemplarily, the side of the first fixing frame 23 close to the side plate 12 and the side of the second fixing frame 24 close to the side plate 12 are pressed against the insulation layer, and the side of the water receiving tray 25 along the left and right directions are pressed against the insulation layer. With such a design, the airflow flows through the front surface of the heat exchanger 21, avoiding air leakage from the gap between the side plate 12 and the two sides of the heat exchanger module 2 along the left and right directions.

[0060] The insulation layer can be made of insulation material. For example, the insulation layer can be made of glass wool or the like.

[0061] In one embodiment, both sides of the heat exchanger module 2 along the left and right directions can be covered with a second sealing layer, and the interference between the second sealing layer and the side plate 12 is 0 mm to 5 mm. In other words, the deformation of the second sealing layer is 0 mm, 1 mm, 2 mm or 5 mm, etc. Exemplarily, the side of the first fixing frame 23 close to the side plate 12 and the side of the second fixing frame 24 close to the side plate 12 are both covered with the second sealing layer.

[0062] The second sealing layer can be made of a flexible material. For example, the second sealing layer can be made of a sponge.

[0063] It should be noted that the unit "mm" means millimeter.

[0064] In one embodiment, the inner surface of the side plate 12 is covered with a heat-insulating layer, and the interference between the second sealing layer and the heat-insulating layer is 0 mm to 5 mm. In other words, the deformation of the second sealing layer is 0 mm to 5 mm.

[0065] In one embodiment, please refer to Figures 1 to 4 The heat exchanger module 2 includes an inlet and outlet pipe 26, which is connected to the refrigerant pipe of the heat exchanger 21 to input or output the refrigerant. The housing 1 includes an end plate 13 and a pressure plate 14. The end plate 13 connects the two side plates 12 along the length direction and is away from the heat exchanger 21. The end plate 13 is formed with a pipe insertion port 13a. The front end of the end plate 13 is formed with a take-in and put-out port 13b connected to the pipe insertion port 13a (see Figure 4 ), the inlet and outlet pipe 26 can enter the pipe insertion port 13a through the access port 13b, an opening groove 14a is formed on the periphery of the pressing plate 14, the pressing plate 14 is detachably connected to the end plate 13, and the wall surface of the opening groove 14a is located on the side of the inlet and outlet pipe 26 away from the wall surface of the pipe insertion port 13a to limit the inlet and outlet pipe 26 from entering the access port 13b. In other words, the opening groove 14a is an open-loop structure that opens toward the periphery.

[0066] For example, when the inlet and outlet pipe 26 needs to be disassembled, the pressing plate 14 is disassembled, and the inlet and outlet pipe 26 can be taken out from the front side through the access opening 13b. When the inlet and outlet pipe 26 needs to be assembled, the inlet and outlet pipe 26 can be pushed into the pipe insertion opening 13a from the front side through the access opening 13b, and then the pressing plate 14 is fixed to the end plate 13, so that the wall surface of the opening groove 14a is located on the side of the wall surface of the inlet and outlet pipe 26 away from the pipe insertion opening 13a, so as to restrict the inlet and outlet pipe 26 from entering the access opening 13b.

[0067] Compared with the assembly method in which the inlet and outlet pipes 26 are passed through one side of the end plate 13 in the thickness direction, the present application limits the inlet and outlet pipes 26 by the pressure plate 14, which makes it easier to disassemble the inlet and outlet pipes 26 in time during the maintenance of the heat exchanger 21, and the operation is simple and convenient.

[0068] The pressing plate 14 and the end plate 13 are detachably connected by a third fastener. The third fastener includes but is not limited to screws or bolts, etc. The third fastener is penetrated from the front side to the pressing plate 14 and the end plate 13. In this way, it is convenient to remove or install the third fastener from the front side.

[0069] Exemplarily, in one embodiment, the wall surface of the opening groove 14a and the wall surface of the pipe-through opening 13a are combined to form a closed loop hole, and the inner diameter of the closed loop hole is adapted to the outer diameter of the inlet and outlet pipe 26. In this way, the closed loop hole can effectively limit the inlet and outlet pipe 26.

[0070] In one embodiment, the inner circumference of the closed loop hole and the outer circumference of the inlet and outlet pipe 26 can be sealed by a third sealing layer. In this way, air leakage in the gap between the inner circumference of the closed loop hole and the outer circumference of the inlet and outlet pipe 26 is avoided.

[0071] The third sealing layer may be made of a flexible material. For example, the third sealing layer may be made of a sponge.

[0072] Exemplarily, the inlet and outlet pipes 26 may include two independent inlet pipes and outlet pipes, and the inlet pipe and the outlet pipe are respectively connected to the head and tail ends of the coil.

[0073] In one embodiment, please refer to Figures 1 to 4 The length direction of the side plate 12 is consistent with the up-down direction, and the housing 1 includes an end plate 13 having an air outlet 13c, and the end plate 13 connects the upper ends of the two side plates 12. That is, the airflow in the accommodating chamber 1a is discharged from the air duct machine from the upper air outlet 13c. Exemplarily, the end of the inlet and outlet pipe 26 away from the heat exchanger 21 faces upward.

[0074] In one embodiment, please refer to Figures 1 to 4 The housing 1 includes a front cover 15, which covers a part of the front opening of the accommodating chamber 1a. The other part of the front opening of the accommodating chamber 1a is the front air inlet 1ab. The connector 22 is located below the front cover 15, and the connector 22 abuts against the front cover 15. With such a design, the airflow enters the accommodating chamber 1a from the front air inlet 1ab on the front side, passes through the heat exchanger 21, and is discharged from the duct machine through the upper air outlet 13c. The front space is open, which facilitates the indoor airflow to enter the accommodating chamber 1a. The connector 22 abuts against the lower surface of the front cover 15, so that the airflow from the air inlet can all flow through the heat exchanger 21.

[0075] In one embodiment, please refer to Figure 1 , Figure 3 and Figure 7 The duct unit includes a lower bottom plate and a shielding plate 16, the shielding plate 16 is detachably connected to the lower bottom plate, the lower bottom plate is connected to the lower ends of the two side plates 12, the lower bottom plate is formed with a lower air inlet, and the shielding plate 16 can shield one of the front air inlet 1ab and the lower air inlet. With such a design, it is possible to choose to let in air only through the front air inlet 1ab, only through the lower air inlet, or both the front air inlet 1ab and the lower air inlet at the same time according to needs, and the duct unit can be applied to more varied and complex installation environments, thereby improving the applicability of the duct unit.

[0076] In one embodiment, the detachable connection between the shielding plate 16 and the lower base plate includes but is not limited to screw or bolt connection.

[0077] For some examples, see Figure 1 and Figure 4The end plate 13, the back plate 11, the two side plates 12, the front cover plate 15 and the bottom plate are together arranged to form a shell 1 with a receiving cavity 1a, and the shape of the shell 1 is roughly a rectangular parallelepiped.

[0078] In one embodiment, please refer to Figures 2 to 4 , the heat exchanger module 2 can enter or be taken out of the accommodating cavity 1a from the front opening of the accommodating cavity 1a, and the inlet and outlet pipes 26 can enter or be taken out of the pipe-through hole 13a from the front side through the access opening 13b. Taking the installation of the heat exchanger module 2 as an example, after the chassis composed of the back plate 11, the two side plates 12, the end plate 13 and the bottom plate is assembled, the heat exchanger module 2 can enter and exit the accommodating cavity 1a from the front opening of the accommodating cavity 1a, and then the heat exchanger module 2 is turned backward as a whole so that the inlet and outlet pipes 26 enter the pipe-through hole 13a from the front side through the access opening 13b, and then the first fastener 100 is detachably inserted from the front side on the connecting member 22 and the side plate 12, and the pressure plate 14 is detachably connected to the end plate 13, so that the assembly of the heat exchanger module 2 and the chassis is completed. That is to say, the back plate 11, two side plates 12, the end plate 13 and the lower bottom plate together constitute the chassis, and the heat exchanger module 2 is assembled into the chassis as a whole, which can avoid the possibility of chassis deformation and effectively improve the assembly efficiency of the duct air conditioner.

[0079] In one embodiment, please refer to Figure 1 and Figure 3 The duct air conditioner includes a fan 4 and a control device 3. The control device 3 and the fan 4 are both located in the accommodating chamber 1a. The control device 3, the fan 4 and the heat exchanger 21 are arranged in sequence from top to bottom. Exemplarily, the water receiving tray 25 abuts against the inner bottom surface of the outer shell 1, that is, the connecting member 22 abuts against the front cover plate 15, the water receiving tray 25 abuts against the inner bottom surface of the lower bottom plate, and the lower air inlet is located at the front side of the water receiving tray 25. With such a design, both the airflow from the front air inlet 1ab and the airflow from the lower air inlet flow through the filter and the heat exchanger 21, and then enter the fan 4 and are discharged through the air outlet 13c.

[0080] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0081] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A duct machine, characterized in that: include: The housing comprises a back plate and two side plates, wherein the two side plates are respectively connected to both ends of the back plate in the left and right directions to define a receiving cavity with a front opening; The heat exchanger module comprises a heat exchanger and a connecting piece, wherein the connecting piece is arranged on the heat exchanger, the heat exchanger is located in the accommodating cavity, and a first fastener is detachably inserted through the connecting piece and the side plate from the front side.

2. The air duct machine according to claim 1, characterized in that: A flange is formed at the front end of the side plate, the connecting piece is located on the outside of the shell, the left and right ends of the connecting piece extend to the flange, and the first fastener is detachably inserted through the connecting piece and the flange from the front side.

3. The air duct machine according to claim 1, characterized in that: The heat exchanger module includes a first fixing frame, a second fixing frame and a water receiving tray, the water receiving tray is arranged on the bottom side of the heat exchanger, the first fixing frame and the second fixing frame are respectively connected to two side plates of the heat exchanger along the left and right directions, and the first fixing frame and the second fixing frame are both connected to the water receiving tray.

4. The air duct machine according to claim 3, characterized in that: The first fixing frame and the second fixing frame both include a bracket, the bracket of the first fixing frame and the bracket of the second fixing frame are arranged at intervals in the left-right direction and connected to the water receiving tray, and the second fastener is detachably passed through the bracket and the water receiving tray from the front side.

5. The air duct machine according to claim 4, characterized in that: The bracket includes a support rod and a fixing ear, wherein the support rod is located on the top side of the water receiving tray, the fixing ear is bent from the support rod toward the bottom side, the fixing ear is located on the front side of the water receiving tray, and the second fastener is detachably inserted into the fixing ear and the water receiving tray from the front side.

6. The air duct machine according to claim 3, characterized in that: The water receiving tray is formed with a water receiving groove and an upper opening communicated with the water receiving groove, and the bottom of the heat exchanger is inserted into the water receiving groove through the upper opening of the water receiving groove.

7. The air duct machine according to claim 6, characterized in that: Both side surfaces of the bottom of the heat exchanger along the left and right directions are sealed with both side surfaces of the water receiving tank along the left and right directions through a first sealing layer.

8. The air duct machine according to claim 1, characterized in that: The inner surfaces of the side plates are covered with a thermal insulation layer, and both sides of the heat exchanger module along the left and right directions are tightly pressed against the thermal insulation layer.

9. The air duct machine according to claim 1, characterized in that: The heat exchanger module includes inlet and outlet pipes, which are connected to the refrigerant pipe of the heat exchanger to input or output refrigerant. The shell includes an end plate and a pressure plate. The end plate connects the two side plates along the length direction and one end away from the heat exchanger. The end plate is formed with a pipe through-hole, and the front end of the end plate is formed with a take-in and put-out port connected to the pipe through-hole. The inlet and outlet pipes can enter the pipe through-hole through the take-in and put-out port. The periphery of the pressure plate is formed with an open groove, and the pressure plate is detachably connected to the end plate. The wall of the open groove is located on the side of the wall of the inlet and outlet pipe away from the pipe through-hole to limit the inlet and outlet pipe from entering the take-in and put-out port.

10. The air duct machine according to claim 1, characterized in that: The length direction of the side plate is consistent with the up-down direction, and the housing includes an end plate with an air outlet, and the end plate connects the upper ends of the two side plates.

11. The air duct machine according to claim 10, characterized in that: The housing includes a front cover plate, which covers a part of the front opening of the accommodating cavity. The other part of the front opening of the accommodating cavity is a front air inlet. The connecting member is located below the front cover plate and abuts against the front cover plate.

12. The air duct machine according to claim 11, characterized in that: The duct machine includes a lower base plate and a shielding plate, the shielding plate is detachably connected to the lower base plate, the lower base plate is connected to the lower ends of the two side plates, the lower base plate is formed with a lower air inlet, and the shielding plate can shield one of the front air inlet and the lower air inlet.

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