Coil pipe unit and air conditioner

Abstract

The utility model discloses a coil pipe unit and an air conditioner, and relates to the technical field of air conditioning equipment, the coil pipe unit comprises a shell, a water pan, a heat exchanger and a protection piece, the upper end and the lower end of the shell are provided with an air outlet and an air inlet, and the water pan is located at the end close to the air inlet; the fixing parts of the first heat exchange unit and the second heat exchange unit of the heat exchanger are supported on the middle drainage part of the water pan, and the middle drainage part is used for collecting condensate water generated by the first heat exchange unit and the second heat exchange unit. As the middle drainage part is positioned in the middle of the air inlet, the middle drainage part is easily heated by hot air of the gas furnace. Therefore, the protection piece is installed below the middle drainage part, the protection piece has a heat insulation effect, hot air is prevented from directly acting on the middle drainage part, the middle drainage part is prevented from being in a long-time heated state, the risk that the middle drainage part deforms is effectively reduced, and the service life of the water pan is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a coil unit and an air conditioner. Background Technology

[0002] In related technologies, the coil unit is used in conjunction with a gas boiler. During installation, the coil unit is typically installed at the gas boiler's air outlet. The coil unit is primarily used for cooling, while the gas boiler is used for heating. The coil unit does not have its own fan; instead, the gas boiler's fan drives the airflow through the coil unit. The coil unit's drip tray is located closer to the gas boiler. Therefore, when the gas boiler is burning, the heat from combustion enters the coil unit. The drip tray is usually made of plastic, and its bottom is prone to deformation and failure after prolonged exposure to heat, reducing its lifespan. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a coil unit that can reduce the risk of deformation after prolonged heating and extend the service life of the drip tray.

[0004] This utility model also proposes an air conditioner having the above-mentioned coil unit.

[0005] According to a first aspect of the present invention, a coil unit includes: a housing having an air outlet and an air inlet at its two ends along the vertical direction; a water collection tray installed inside the housing and located near the air inlet, the water collection tray including a central drainage portion extending along a first direction, the central drainage portion being located at the middle of the air inlet along a second direction, the second direction being perpendicular to the first direction, and the first direction and the second direction being perpendicular to the vertical direction; a heat exchanger including a first heat exchange unit and a second heat exchange unit, the first heat exchange unit and the second heat exchange unit being arranged along the second direction at an angle, and the fixing portions of the first heat exchange unit and the second heat exchange unit being supported within the central drainage portion; and a protective member installed below the central drainage portion.

[0006] The coil unit according to the embodiment of this utility model has at least the following beneficial effects:

[0007] By setting air outlets and air inlets at the upper and lower ends of the casing, the water collection tray is located near the air inlet. The fixing parts of the first and second heat exchange units of the heat exchanger are supported by the middle drainage section of the water collection tray. The middle drainage section is used to collect the condensate generated by the first and second heat exchange units. Since the middle drainage section is located in the middle of the air inlet, it is easily heated by the hot air from the gas furnace. Therefore, a protective component is installed below the middle drainage section. The protective component has a heat insulation function, inhibiting the direct action of hot air on the middle drainage section, preventing the middle drainage section from being under heat for a long time, effectively reducing the risk of deformation of the middle drainage section, and extending the service life of the water collection tray.

[0008] According to some embodiments of the present invention, the protective member includes a recess and a connecting portion. The recess is wrapped around the lower surface of the intermediate drainage portion, the connecting portion is connected to the edge of the recess, and the connecting portion is fixed to the water receiving tray or the housing.

[0009] According to some embodiments of the present invention, the upper edge of the recess is flush with the upper edge of the intermediate drainage portion; or the upper edge of the recess is lower than the upper edge of the intermediate drainage portion.

[0010] According to some embodiments of the present invention, the connecting part is configured as a hook, and the hook is connected to the side wall of the water receiving tray.

[0011] According to some embodiments of the present invention, the hook is formed by bending a strip of sheet metal connected to the edge of the recess.

[0012] According to some embodiments of the present invention, the connecting part is configured as a snap fastener, and the protective member is fixed to the water receiving tray or the housing by the snap fastener; or the connecting part is configured as a through hole, and the protective member is fixed to the water receiving tray or the housing by a screw inserted into the through hole.

[0013] According to some embodiments of this utility model, the material of the water receiving tray is plastic, and the material of the protective component is metal or non-metallic heat insulation material.

[0014] According to some embodiments of this utility model, the heat exchanger is an M-shaped evaporator or a V-shaped evaporator.

[0015] According to some embodiments of the present invention, the water receiving tray further includes a front-end drainage section extending along the second direction, the front-end drainage section having a drainage hole, the inner cavity of the front-end drainage section communicating with the inner cavity of the middle drainage section, and the bottom wall of the middle drainage section being inclined downward toward the bottom wall of the front-end drainage section.

[0016] An air conditioner according to a second aspect of the present invention includes the coil unit described in the above embodiments.

[0017] The air conditioner according to the embodiment of this utility model has at least the following beneficial effects:

[0018] The coil unit, as described in the first embodiment, has an air outlet and an air inlet at its upper and lower ends of the housing. A water collection tray is located near the air inlet. The fixing parts of the first and second heat exchange units of the heat exchanger are supported by a central drain section of the water collection tray. This central drain section collects the condensate generated by the first and second heat exchange units. Since the central drain section is located in the middle of the air inlet, it is easily heated by the hot air from the gas furnace. Therefore, a protective component is installed below the central drain section. This component provides heat insulation, preventing hot air from directly contacting the central drain section and avoiding prolonged heating. This effectively reduces the risk of deformation of the central drain section and extends the service life of the water collection tray.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a simplified structural diagram of the coil unit and gas furnace in one embodiment of the present invention;

[0022] Figure 2 This is a simplified structural diagram of the coil unit and gas furnace in another embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the water receiving tray according to one embodiment of the present invention;

[0024] Figure 4 This is an exploded view of a water receiving tray according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the bottom structure of the water receiving tray according to an embodiment of the present utility model;

[0026] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 7 This is a top view of a water receiving tray according to an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Sectional view at point BB.

[0029] Icon labels:

[0030] 1000 coil units;

[0031] Housing 100; Air inlet 110; Air outlet 120;

[0032] Water receiving tray 200; middle drainage section 210; hanging plate 211; front drainage section 220; groove 221; rear drainage section 230; left drainage section 240; right drainage section 250; drainage hole 260;

[0033] Heat exchanger 300; first heat exchange unit 310; second heat exchange unit 320; fixing part 330;

[0034] Protective component 400; Recess 410; Connecting part 420; Hook 421; Insulation cavity 430;

[0035] Gas stove 500. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] Reference Figure 1 The diagram shown is a simplified illustration of the use of a coil unit 1000 and a gas furnace 500 in accordance with an embodiment of the present invention. The coil unit 1000 is located above the gas furnace 500. Figure 1The dashed arrows in the diagram indicate the direction of airflow. One embodiment of the coil unit 1000 of this utility model includes a housing 100, a water collection tray 200, and a heat exchanger 300. The housing 100 has an air outlet 120 and an air inlet 110 at its two ends along the vertical direction, for example, the air inlet 110 is located at the lower end of the housing 100, and the air outlet 120 is located at the upper end of the housing 100. The water collection tray 200 is installed inside the housing 100 near the air inlet 110, as shown in the figure. Figure 3 As shown, the water receiving tray 200 includes a central drainage section 210 extending along a first direction. The central drainage section 210 is located at the center of the air inlet 110 along a second direction, which is perpendicular to the first direction. Both the first and second directions are perpendicular to the vertical direction, respectively. For example, the first direction is... Figure 3 The front and back directions, the second direction is Figure 3 The middle drainage section 210 is located in the middle of the air inlet 110 along the second direction. This means that when the air inlet 110 is divided into three equal parts along the second direction, at least part of the structure of the middle drainage section 210 is located in the middle part.

[0041] Reference Figure 1 As shown, the heat exchanger 300 includes a first heat exchange unit 310 and a second heat exchange unit 320. The first heat exchange unit 310 and the second heat exchange unit 320 are arranged along a second direction and are angled. The fixing part 330 of the first heat exchange unit 310 and the second heat exchange unit 320 is supported in the intermediate drainage part 210. It should be noted that the first heat exchange unit 310 and the second heat exchange unit 320 can be connected by a connecting plate, so the fixing part 330 can be a connecting plate; or, the fixing part 330 can also be a side plate of the first heat exchange unit 310 and the second heat exchange unit 320; or the fixing part 330 can be the part of the first heat exchange unit 310 and the second heat exchange unit 320 that abuts against the intermediate drainage part 210, so that the condensate generated by the first heat exchange unit 310 and the second heat exchange unit 320 during cooling can be collected by the intermediate drainage part 210 to prevent condensate from overflowing. The heat exchanger 300 can be M-shaped, meaning the first heat exchange unit 310 and the second heat exchange unit 320 are respectively inverted V-shapes, such that the fixing portion 330 of the first heat exchange unit 310 and the second heat exchange unit 320 is supported by the intermediate drainage portion 210. Alternatively, refer to... Figure 2 As shown, the heat exchanger 300 can also be V-shaped, and the first heat exchange unit 310 and the second heat exchange unit 320 are plate-shaped and set at an angle.

[0042] Using the above scheme, air outlets 120 and air inlets 110 are provided at the upper and lower ends of the casing 100, and the water collection tray 200 is located at the end near the air inlet 110. The first heat exchange unit 310 and the second heat exchange unit 320 of the heat exchanger 300 are supported on the middle drainage section 210 of the water collection tray 200. Therefore, the airflow driven by the fan of the gas furnace 500 enters the interior of the casing 100 through the air inlet 110, and after being cooled by the first heat exchange unit 310 and the second heat exchange unit 320, it forms cold air, which is blown out from the air outlet 120. The condensate produced by the first heat exchange unit 310 and the second heat exchange unit 320 drips into the middle drainage section 210, which collects the condensate and prevents it from overflowing.

[0043] Since the intermediate drain section 210 is usually made of plastic, in order to reduce the significant impact of heat from the gas furnace 500 on the intermediate drain section 210 of the water pan 200 during heating, refer to 4 and Figure 5 As shown in the embodiment of this utility model, the coil unit 1000 further includes a protective component 400, which is installed below the intermediate drain section 210. It is understood that, since the intermediate drain section 210 is located in the middle of the air inlet 110, it is easily heated by the hot air from the gas furnace 500. Therefore, the protective component 400 is installed below the intermediate drain section 210. The protective component 400 has a heat insulation function, inhibiting the direct action of hot air on the intermediate drain section 210, preventing the intermediate drain section 210 from being under prolonged heating, effectively reducing the risk of deformation of the intermediate drain section 210, and extending the service life of the drip tray 200.

[0044] Reference Figure 4 As shown, in an embodiment of this utility model, the protective member 400 includes a recess 410 and a connecting portion 420, the shape of the recess 410 being adapted to the shape of the intermediate drainage portion 210. (Refer to...) Figure 7 and Figure 8 As shown, by providing a recess 410 that wraps around the lower surface of the intermediate drainage section 210, for example, by spaced apart from the intermediate drainage section 210, a heat insulation cavity 430 is formed between the recess 410 and the intermediate drainage section 210. When the recess 410 is heated by hot air, the presence of the heat insulation cavity 430 effectively reduces the direct transfer of heat from the recess 410 to the intermediate drainage section 210, thereby reducing the risk of deformation of the intermediate drainage section 210 and extending its service life. (Refer to...) Figure 3 and Figure 4 As shown, the connecting part 420 is connected to the edge of the recess 410 and the connecting part 420 is fixed to the water receiving tray 200 or the housing 100, thereby determining the relative position of the recess 410 and the intermediate drainage part 210 and reducing the risk of the protective part 400 loosening and falling off.

[0045] Reference Figure 7As shown, in this embodiment of the present invention, the upper edge of the recess 410 is flush with the upper edge of the intermediate drainage portion 210; or the upper edge of the recess 410 is lower than the upper edge of the intermediate drainage portion 210. It is understood that setting the upper edge of the recess 410 to be flush with or lower than the upper edge of the intermediate drainage portion 210 can prevent the upper edge of the recess 410 from being too high, which would reduce the air intake of the coil unit 1000, thus ensuring the rationality of the coil unit 1000's structural design. Simultaneously, when the upper edge of the recess 410 is flush with the upper edge of the intermediate drainage portion 210, the intermediate drainage portion 210 can be protected to the maximum extent, reducing the impact of the heat from the gas furnace 500 on the intermediate drainage portion 210 and improving the reliability of the intermediate drainage portion 210.

[0046] Reference Figure 3 , Figure 4 and Figure 6 As shown in the embodiment of this utility model, the connecting part 420 is configured as a hook 421, which is connected to the side wall of the water receiving tray 200. The protective member 400 is a sheet metal part, and the hook 421 is formed by bending a strip of sheet metal along the edge of the recess 410. For example, four hooks 421 are provided, with two hooks 421 at each of the front and rear ends of the recess 410, and the hooks 421 at the front and rear ends of the recess 410 are located on the left and right sides of the recess 410, respectively. The two hooks 421 located at the front end of the recess 410 are formed by bending a strip of sheet metal along the edge of the recess 410 from back to front, and then bending it downwards. The two hooks 421 located at the rear end of the recess 410 are formed by bending a strip of sheet metal along the edge of the recess 410 from front to back, and then bending it downwards. The intermediate drainage section 210 has hanging plates 211 at both ends, located on the left and right sides of the section. Hooks 421 are attached to the corresponding hanging plates 211 to determine the relative positions of the protective component 400 and the intermediate drainage section 210. Using hooks 421 simplifies the installation and disassembly of the protective component 400, improving assembly efficiency.

[0047] In another embodiment of this utility model, the connecting part 420 can also be configured as a snap fastener, and the protective member 400 is fixedly connected to the water receiving tray 200 or the housing 100 by the snap fastener. For example, the snap fastener forms a slot, and the slot engages with the hanging plate 211. In another embodiment, the connecting part 420 can also be configured as a through hole, and the protective member 400 is fixedly connected to the water receiving tray 200 or the housing 100 by fasteners such as screws and bolts passing through the through hole. The appropriate connection method is selected according to the actual situation.

[0048] In this embodiment of the invention, the drip tray 200 is made of plastic. The plastic can be polypropylene, ABS plastic, etc. Polypropylene is a semi-crystalline resin with high melt strength, rigidity, and transparency; it also has good high-temperature resistance, chemical corrosion resistance, excellent electrical properties, good molding processability, and low price. ABS plastic is a terpolymer with good impact resistance, abrasion resistance, and electrical properties; it has good moldability, low water absorption, and a wide molding temperature range, making it suitable for injection molding. Therefore, the drip tray 200 can be produced by injection molding. Injection molding allows for the production of relatively complex shapes, is easy to automate, has high production efficiency, and is suitable for large-scale production.

[0049] In the embodiments of this utility model, the protective component 400 is made of either a metallic material or a non-metallic thermal insulation material. For example, when the protective component 400 is made of a metallic material, the metallic material can be carbon steel, stainless steel, aluminum alloy, galvanized steel sheet, etc. Carbon steel has high strength, low cost, and is easy to process; stainless steel has good corrosion resistance and mechanical properties; aluminum alloy is lightweight and high strength; galvanized steel sheet has good corrosion resistance. Non-metallic thermal insulation materials include mineral-based thermal insulation materials, organic thermal insulation materials, and composite thermal insulation materials. Mineral-based thermal insulation materials include extended fiber, glass wool, ceramic fiber, etc. Organic thermal insulation materials include rubber foam, and composite thermal insulation materials include porous ceramic materials, etc. The appropriate material is selected based on the specific circumstances.

[0050] Reference Figure 3 As shown, in this embodiment of the present invention, the water receiving tray 200 further includes a front drain portion 220 extending in a second direction, that is, the front drain portion 220 extends in a left-right direction. The front drain portion 220 is provided with a drain hole 260, which can be connected to a drain pipe (not shown in the figure). The drain pipe and the drain hole 260 are threadedly connected, and the drain pipe serves as a guide. The inner cavity of the front drain portion 220 communicates with the inner cavity of the intermediate drain portion 210 and the drain hole 260. The bottom wall of the intermediate drain portion 210 is inclined downward toward the bottom wall of the front drain portion 220. It can be understood that when the condensate on the heat exchanger 300 flows to the intermediate drain portion 210, since the bottom wall of the intermediate drain portion 210 is inclined downward toward the bottom wall of the front drain portion 220, the condensate can be guided to the front drain portion 220 and finally enter the drain pipe through the drain hole 260, preventing the condensate from overflowing the water receiving tray 200.

[0051] Continue to refer to Figure 3As shown, in this embodiment of the present invention, the water receiving tray 200 further includes a rear drainage section 230, a left drainage section 240, and a right drainage section 250. The rear drainage section 230 extends in the left-right direction and is connected to the rear end of the middle drainage section 210. The front drainage section 220 is connected to the front end of the middle drainage section 210. The left drainage section 240 and the right drainage section 250 both extend in the front-back direction, and the two ends of the left drainage section 240 are respectively connected to the left ends of the front drainage section 220 and the rear drainage section 230, and the two ends of the right drainage section 250 are respectively connected to the right ends of the front drainage section 220 and the rear drainage section 230. The inner cavities of the middle drainage section 210, the front drainage section 220, the rear drainage section 230, the left drainage section 240, and the right drainage section 250 are interconnected. When the heat exchanger 300 is an M-shaped heat exchanger 300, the left-end drain section 240 also supports the left side of the first heat exchange unit 310, and the right-end drain section 250 also supports the right side of the second heat exchange unit 320. The bottom walls of the middle drain section 210, the rear drain section 230, the left-end drain section 240, and the right-end drain section 250 are inclined downwards towards the bottom wall of the front drain section 220, which facilitates the collection of condensate into the front drain section 220, and finally enters the drain pipe through the drain hole 260, preventing condensate from overflowing the water collection tray 200.

[0052] In this embodiment of the invention, the middle drainage section 210, the rear drainage section 230, the left drainage section 240, the right drainage section 250, and the front drainage section 220 are integrally injection molded. This integral injection molding method improves the stability and reliability of the connection between the middle drainage section 210, the rear drainage section 230, the left drainage section 240, the right drainage section 250, and the front drainage section 220, while also simplifying assembly steps and improving production efficiency.

[0053] Continue to refer to Figure 3 As shown in the embodiment of this utility model, the drain hole 260 is provided on the front side wall of the front drain section 220. For example, there are two drain holes 260, spaced apart in the left-right direction. Providing two drain holes 260 can improve drainage efficiency. When one drain hole 260 is blocked, the other drain hole 260 can still function, improving the reliability of drainage from the water receiving tray 200. Of course, the number of drain holes 260 can also be other, such as one, three, four, etc. The drain hole 260 has an internal thread, and the interface of the drain pipe has an external thread. The external and internal threads work together to connect the drain pipe to the drain hole 260, making installation simple and convenient. Disassembly is also convenient for subsequent maintenance and cleaning. To ensure a sealing effect, a sealing ring can also be provided inside the drain hole 260 to improve the sealing effect and prevent leakage.

[0054] Reference Figure 7 As shown in the embodiment of this utility model, the bottom wall of the front drainage section 220 has a downwardly recessed groove 221 near the drainage hole 260. It is understood that providing the groove 221 allows the lowest point of the drainage hole 260 to be lower than the bottom wall of the front drainage section 220, which facilitates the collection of condensate into the groove 221 and its discharge through the drainage hole 260, reducing the adverse effects of condensate accumulation in the water collection tray 200, such as the growth of bacteria and insects in the water.

[0055] An air conditioner according to one embodiment of this utility model includes a coil unit 1000 and an outdoor unit as described in the above embodiments. The outdoor unit and the coil unit 1000 are connected by a refrigerant pipe. The air conditioner of this embodiment uses the coil unit 1000 described in the above embodiments. An air outlet 120 and an air inlet 110 are provided at the upper and lower ends of the casing 100. A water collection tray 200 is located near the air inlet 110. The first heat exchange unit 310 and the second heat exchange unit 320 of the heat exchanger 300 are supported on the middle drain portion 210 of the water collection tray 200. Therefore, the airflow driven by the fan of the gas furnace 500 enters the interior of the casing 100 through the air inlet 110. After being cooled by the first heat exchange unit 310 and the second heat exchange unit 320, the cold air is blown out from the air outlet 120. The condensate produced by the first heat exchange unit 310 and the second heat exchange unit 320 drips into the middle drain portion 210, effectively collecting the condensate and preventing overflow. Since the intermediate drain section 210 is located in the middle of the air inlet 110, it is easily heated by the hot air from the gas furnace 500. Therefore, a protective component 400 is installed below the intermediate drain section 210. The protective component 400 has a heat insulation function, preventing hot air from directly acting on the intermediate drain section 210, avoiding prolonged heating of the intermediate drain section 210, effectively reducing the risk of deformation of the intermediate drain section 210, and extending the service life of the water collection tray 200.

[0056] The air conditioner of this utility model adopts all the technical solutions of the coil unit 1000 of the above embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0057] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A coil unit, characterized in that, include: The casing has an air outlet and an air inlet at each end along the vertical direction; A water collection tray is installed inside the housing and located at one end near the air inlet. The water collection tray includes a central drainage section extending along a first direction. The central drainage section is located at the middle of the air inlet along a second direction. The second direction is perpendicular to the first direction, and the first direction and the second direction are respectively perpendicular to the vertical direction. A heat exchanger includes a first heat exchange unit and a second heat exchange unit, the first heat exchange unit and the second heat exchange unit are arranged along the second direction and are angled, and the fixing part of the first heat exchange unit and the second heat exchange unit is supported in the intermediate drainage part; A protective element is installed below the intermediate drainage section.

2. The coil unit according to claim 1, characterized in that: The protective component includes a recess and a connecting portion. The recess is wrapped around the lower surface of the intermediate drainage portion, and the connecting portion is connected to the edge of the recess and fixed to the water receiving tray or the housing.

3. The coil unit according to claim 2, characterized in that: The upper edge of the recess is flush with the upper edge of the intermediate drainage part; or the upper edge of the recess is lower than the upper edge of the intermediate drainage part.

4. The coil unit according to claim 2, characterized in that: The connecting part is configured as a hook, which is connected to the side wall of the water receiving tray.

5. The coil unit according to claim 4, characterized in that: The hook is formed by bending a strip of sheet metal that is connected to the edge of the recess.

6. The coil unit according to claim 2, characterized in that: The connecting part is configured as a snap fastener, and the protective component is fixed to the water receiving tray or the housing by the snap fastener; or The connecting part is configured as a through hole, and the protective member is fixed to the water receiving tray or the housing by screws inserted through the through hole.

7. The coil unit according to any one of claims 1 to 6, characterized in that: The drip tray is made of plastic, and the protective component is made of metal or non-metallic heat-insulating material.

8. The coil unit according to any one of claims 1 to 6, characterized in that: The heat exchanger is an M-shaped evaporator or a V-shaped evaporator.

9. The coil unit according to any one of claims 1 to 6, characterized in that: The water receiving tray also includes a front drain section extending along the second direction. The front drain section is provided with a drain hole. The inner cavity of the front drain section is connected to the inner cavity of the middle drain section. The bottom wall of the middle drain section is inclined downward toward the bottom wall of the front drain section.

10. An air conditioner, characterized in that: Includes the coil unit as described in any one of claims 1 to 9.

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