Fan-coil and central air conditioner

Abstract

The application relates to the air conditioning technical field, and particularly discloses a fan coil and a central air conditioner. The fan coil comprises a shell with an air cavity; an air supply module arranged at one of the cavity openings of the air cavity, the air supply module being used for sucking air in the air cavity and discharging the air out of the cavity opening; a heat exchange module arranged at the other cavity opening of the air cavity, the edge of the heat exchange module abutting against the cavity wall of the air cavity; and an integrated water collecting tray with a collecting area and a drainage area, the collecting area being arranged at the bottom of the heat exchange module, the drainage area being recessed at the bottom of the collecting area, and the plane of the heat exchange module being inclined towards the drainage area so that the condensed water on the heat exchange module flows to the drainage area. The fan coil can reduce the screw connection process and assembly process, improve the assembly efficiency, improve the sealing performance of the water collecting tray, reduce the risk of dew condensation and water dripping at the cavity opening of the air cavity, avoid water leakage of the water collecting tray itself, avoid mold smell and air pollution, and ensure the physical and mental health of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a fan coil and a central air conditioner. BACKGROUND

[0002] The fan coil is a common terminal device in the central air conditioner, which circulates indoor air through the heat exchanger by the operation of the fan to adjust the indoor temperature. The fan sends the indoor air or the mixed air of indoor and outdoor into the room after cooling or heating by the heat exchanger, so as to reduce or increase the indoor temperature to meet the comfort requirements of people.

[0003] However, the current fan coil generally connects the water pan, fin evaporator (heat exchanger), fan and air cavity together by screws, which leads to complex assembly and also causes condensation in the air cavity opening due to the penetration of moisture. The water pan composed of sheet metal structure is also prone to water leakage. If a sponge is used to block moisture, the sponge is prone to mold in a long-term humid environment, which causes moldy smell in the air supply of the fan coil and also affects physical and mental health. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a fan coil and a central air conditioner, which can solve the problems of condensation and water leakage of the fan coil in the prior art.

[0005] To achieve the above purpose, the following technical solutions are adopted in the present application:

[0006] On the one hand, a fan coil is provided, comprising:

[0007] a housing having an air cavity;

[0008] a air supply module arranged at one of the cavity openings of the air cavity, the air supply module being configured to suck air in the air cavity and discharge the air out of the cavity opening;

[0009] a heat exchange module arranged at another cavity opening of the air cavity, the edge of the heat exchange module abutting against the cavity wall of the air cavity;

[0010] an integrated water pan having a collection area and a drainage area, the collection area being arranged at the bottom of the heat exchange module, the drainage area being recessed at the bottom of the collection area, and the plane of the heat exchange module being inclined towards the drainage area, so that the condensed water on the heat exchange module flows to the drainage area.

[0011] As a preferred scheme of the fan coil, further comprising:

[0012] a filter screen arranged in the air cavity and located between the heat exchange module and the air supply module, the edge of the filter screen abutting against the cavity wall of the air cavity, and the filter screen being configured to filter and absorb moisture.

[0013] As a preferred scheme of the fan-coil unit, the plane of the filter screen is inclined towards the drainage area.

[0014] As a preferred scheme of the fan-coil unit, the filter screen is an activated carbon filter screen.

[0015] As a preferred scheme of the fan-coil unit, further comprising:

[0016] A sealing plate is arranged in the air cavity, and edges of the sealing plate abut against the heat exchange module, the air supply module and the cavity wall of the air cavity, respectively.

[0017] As a preferred scheme of the fan-coil unit, the integrated water pan further has a first clamping groove and a second clamping groove, the sealing plate is provided with a first clamping buckle, the air supply module is provided with a second clamping buckle, the first clamping buckle is correspondingly clamped with the first clamping groove, and the second clamping buckle is correspondingly clamped with the second clamping groove.

[0018] As a preferred scheme of the fan-coil unit, the heat exchange module comprises a fin heat exchanger and a medium circulation pipe, the medium circulation pipe is arranged in the fin heat exchanger, and the medium circulation pipe is used for passing the heat exchange medium.

[0019] As a preferred scheme of the fan-coil unit, the heat exchange module further comprises a fixing plate, the fixing plate is arranged at two ends of the fin heat exchanger, and the fixing plate is used for fixedly connecting the air cavity.

[0020] As a preferred scheme of the fan-coil unit, the heat exchange module further comprises a heater, and the heater is arranged at a side of the heat exchange module away from the air supply module.

[0021] In another aspect, a central air conditioner is provided, comprising the fan-coil unit.

[0022] The application has the following beneficial effects:

[0023] The air supply module, the heat exchange module and the integrated water pan are accommodated in the air cavity of the shell, the air supply module is arranged at one of the cavity openings of the air cavity, the heat exchange module is arranged at the other cavity opening of the air cavity, and the collector of the integrated water pan is arranged at the bottom of the heat exchange module. Since the edge of the heat exchange module abuts against the cavity wall of the air cavity, and the air supply module can suck the air in the air cavity and discharge the air from the cavity opening, a negative pressure is formed in the air cavity, so that the air from outside of the other cavity opening is sucked into the air cavity to exchange heat with the heat exchange module. When the temperature of the heat exchange medium in the heat exchange module is lower than the temperature of the air, the air is cooled and the water vapor in the air may be condensed into water and attached to the heat exchange module, and the condensed water is collected and dripped on the collection area of the integrated water pan.

[0024] In addition, since the bottom of the collection area of the integrated water pan is concave with a drainage area, the condensed water dropped on the collection area can flow to the drainage area and be discharged. At the same time, the plane of the heat exchange module is inclined towards the drainage area, so that the condensed water on the heat exchange module flows into the drainage area under the action of gravity, which can improve the collection efficiency and discharge efficiency of the condensed water. Moreover, the inclined heat exchange module can also intercept part of the moisture from the cavity opening, so that the moisture directly condenses into water on the heat exchange module, reducing the damage of the moisture to the air supply module, and avoiding the condensed water from the condensation of the moisture from being unable to drip on the integrated water pan.

[0025] Therefore, the fan coil of the present application can reduce the screw connection process and assembly process, improve the assembly efficiency, and improve the sealing performance of the water pan, reduce the risk of condensation water dripping from the cavity opening of the air cavity, and avoid water leakage of the water pan itself. Moreover, since the condensed water is collected by the integrated water pan and the inclined heat exchange module, the use of sponge to block the moisture can be avoided, thereby avoiding the generation of mold smell and air pollution, and ensuring the physical and mental health of the user. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application will be further described in detail below according to the drawings and embodiments.

[0027] Figure 1 The cross-sectional structure schematic diagram of the fan coil provided by an embodiment of the present application is shown.

[0028] Figure 2 The exploded structure schematic diagram of the fan coil provided by an embodiment of the present application is shown.

[0029] Figure 3 The structure schematic diagram of the integrated water pan provided by an embodiment of the present application is shown.

[0030] Figure 4 The structure schematic diagram of the heat exchange module provided by an embodiment of the present application is shown.

[0031] Figure 5 The structure schematic diagram of the central air conditioner provided by an embodiment of the present application is shown.

[0032] In the drawings:

[0033] 1, housing; 11, air cavity;

[0034] 2, air supply module; 21, second buckle; 22, volute; 23, cross-flow fan;

[0035] 3, heat exchange module; 31, fin heat exchanger; 32, medium circulation pipe; 33, fixed plate; 34, heater;

[0036] 4, integrated water pan; 41, collection area; 42, drainage area; 43, first clamping groove; 44, second clamping groove; 45, connecting plate; 46, mounting groove; 47, recessed structure;

[0037] 5, filter screen; 6, sealing plate; 61, first buckle. DETAILED DESCRIPTION

[0038] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application are further described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] The fan coil of the prior art is generally connected by screws to the water pan, the fin evaporator (heat exchanger), the fan and the air cavity 11, resulting in complex assembly and also causing condensation at the air cavity 11 opening due to moisture penetration, and the water pan composed of sheet metal structure is also prone to water leakage.

[0042] In order to solve the problems of condensation and water leakage of the fan coil in the prior art, as shown in Figure 1 The embodiment provides a fan coil, which comprises:

[0043] The shell 1 has an air cavity 11.

[0044] The air supply module 2 is arranged at one of the air cavity 11 openings, and is used to suck air in the air cavity 11 and discharge it from the opening;

[0045] The heat exchange module 3 is arranged at the other air cavity 11 opening, and the edge of the heat exchange module 3 abuts against the air cavity 11 wall;

[0046] The integrated water pan 4 has a collection area 41 and a drainage area 42, the collection area 41 is arranged at the bottom of the heat exchange module 3, the drainage area 42 is recessed at the bottom of the collection area 41, and the plane of the heat exchange module 3 is inclined towards the drainage area 42, so that the condensed water on the heat exchange module 3 flows to the drainage area 42.

[0047] The air supply module 2 is arranged at one of the air cavity 11 openings, and is used to suck air in the air cavity 11 and discharge it from the opening;

[0048] The heat exchange module 3 is arranged at the other air cavity 11 opening, and the edge of the heat exchange module 3 abuts against the air cavity 11 wall;

[0049] Therefore, the fan coil of the present application can reduce the screw connection process and assembly process, improve the assembly efficiency, and improve the sealing performance of the water pan, reduce the risk of condensation and water dripping at the air cavity 11 opening, and avoid water leakage of the water pan itself.

[0050] It should be noted that the drainage area 42 of the integrated water pan 4 in this embodiment can be provided with a water guide pipe on the side to guide the condensed water, or the condensed water can be directly guided through the drainage area 42 itself. In addition, the side of the collection area 41 can be provided with a coaming, which can abut and fix the air cavity 11, the heat exchange module 3 and the air supply module 2. The ground of the collection area 41 can also be directly connected to the cavity wall of the air cavity 11, and this embodiment is not limited in particular.

[0051] In particular, with reference to Figure 1 , the fan coil of the present application further comprises a filter screen 5 arranged in the air cavity 11 and located between the heat exchange module 3 and the air supply module 2, and the edge of the filter screen 5 abuts against the cavity wall of the air cavity 11, which can divide the air cavity 11 between the heat exchange module 3 and the air supply module 2. The filter screen 5 of this embodiment can filter the particulate impurities in the air, and also can absorb part of the moisture to further reduce the humidity of the air after passing through the heat exchange module 3, so as to reduce the moisture entering the air supply module 2.

[0052] Preferably, with reference to Figure 1 , the plane of the filter screen 5 is inclined towards the drainage area 42, so that the condensed water attached to the filter screen 5 can also flow into the drainage area 42 under the action of gravity, and the collection efficiency of the condensed water can be further improved. More preferably, the filter screen 5 and the heat exchange module 3 form a funnel-shaped structure, which can collect the condensed water from the top of the air cavity 11, and can further guide the condensed water into the drainage area 42 of the integrated water pan 4, so as to avoid the condensed water at the top of the air cavity 11 flowing to the air supply module 2 by wind force, and to avoid damaging the air supply module 2.

[0053] Another preferably, the filter screen 5 is an activated carbon filter screen. The activated carbon filter screen is made by loading powdered activated carbon on polyurethane foam, and the carbon content is about 35% to 50%. It not only has high adsorption performance of activated carbon, which can be used for air purification to remove volatile organic compounds such as formaldehyde, toluene, hydrogen sulfide, chlorobenzene and pollutants in the air, but also has the characteristics of small air resistance and low energy consumption. Therefore, the activated carbon filter screen of this embodiment can deodorize, remove odor and purify the environment under a certain air volume, and has good purification effect.

[0054] In a preferred example, the activated carbon filter screen is provided with honeycomb holes, which can be used for ventilation and maintain the structural strength of the activated carbon filter screen.

[0055] Optionally, with reference to Figure 1 and Figure 2The fan-coil of the present application further comprises a sealing plate 6 arranged in the air cavity 11. The edge of the sealing plate 6 abuts against the heat exchange module 3, the air supply module 2 and the cavity wall of the air cavity 11 respectively. The sealing plate 6 can be used to seal the gap between the heat exchange module 3, the air supply module 2 and the cavity wall of the air cavity 11, so as to avoid the moisture bypassing the heat exchange module 3 and directly entering the air cavity 11. Meanwhile, the sealing plate 6 can also serve as a connecting plate 45 between the heat exchange module 3, the air supply module 2 and the air cavity 11, so as to improve the connecting strength among them. Moreover, since the air only enters the air cavity 11 and passes through the heat exchange module 3, the heat exchange effect of the heat exchange module 3 on the air can be improved.

[0056] Further, referring to Figure 2 and Figure 3 The integrated water pan 4 further has a first clamping groove 43 and a second clamping groove 44. Correspondingly, the sealing plate 6 is provided with a first clamping buckle 61, and the air supply module 2 is provided with a second clamping buckle 21. The first clamping buckle 61 is correspondingly clamped with the first clamping groove 43, and the second clamping buckle 21 is correspondingly clamped with the second clamping groove 44, so as to improve the connecting strength of the air supply module 2 and the sealing plate 6 with the integrated water pan 4 respectively. Meanwhile, the use of screws is avoided, and the installation complication and loosening risk of screw locking are reduced.

[0057] In other embodiments, referring to Figure 3 The connecting plate 45 can be arranged at the position of the integrated water pan 4 corresponding to the air supply module 2 and the filter screen 5, and the connecting plate 45 is provided with a mounting groove 46 and a second clamping groove 44, which can be respectively used to fix the edge of the filter screen 5 and the air supply module 2, so as to reduce the assembly complication and the risk of water leakage caused by the use of screws. Meanwhile, the connecting plate 45 can also serve as a support structure, which can share the load of the shell 1.

[0058] Particularly, referring to Figure 3 The recess structure 47 is arranged in the connecting plate 45, so that an air-avoiding cavity is formed in the middle of the connecting plate 45. The air-avoiding cavity can maintain the air tightness of the heat exchange module 3, the air supply module 2 and the side wall of the air cavity 11, and also avoid increasing the weight.

[0059] For the specific implementation structure of the heat exchange module 3, referring to Figure 4 The heat exchange module 3 comprises a fin heat exchanger 31 and a medium circulation pipe 32. The medium circulation pipe 32 is arranged in the fin heat exchanger 31. When the heat exchange medium is introduced into the medium circulation pipe 32, the heat exchange efficiency of the heat exchange medium and the air can be improved by using the large heat exchange area of the fin heat exchanger 31 and the air. The fin structure on the fin heat exchanger 31 is not air-permeable, which is beneficial to cooling the air and improving the condensation rate of the condensed water, so that the water vapor can be condensed on the fin heat exchanger 31 and collected on the collection area 41 and the drainage area 42 under the action of gravity.

[0060] Preferably, referring to Figure 4The heat exchange module 3 further comprises a fixing plate 33, which is arranged at both ends of the finned heat exchanger 31, and can be used to fix and connect the air cavity 11, so as to reduce the influence of the connecting structure of the heat exchange module 3 on the air tightness of the air cavity 11.

[0061] Still preferably, referring to Figure 1 and Figure 4 The heat exchange module 3 further comprises a heater 34, which is arranged at the side of the heat exchange module 3 away from the air supply module 2, and can be used to heat the air entering the cavity, so as to avoid the cavity of the air cavity 11 from frosting and affecting the air inlet. At the same time, the amount of condensate water is also reduced, so as to avoid the condensate water from frosting and blocking the air cavity 11. The heater 34 in the embodiment can be an electric heater or a condenser in a heat pump system, which is not limited in the embodiment.

[0062] In the application, the air supply module 2 can comprise a volute 22 and a cross-flow fan 23. The shell wall of the volute 22 has a flow guide structure, which can change the flow direction of the air, so that the condensate water in the air reaching the air supply module 2 can stay at the bottom of the volute 22 under the action of gravity, further reducing the risk of water leakage at the air outlet. The cross-flow fan 23 is also called a cross-flow fan, and the impeller is a multi-blade long cylindrical shape with a forward multi-wing blade. When the impeller rotates, the airflow enters the blade from the open part of the impeller, passes through the inside of the impeller, and is discharged from the other blade, forming a working airflow. The air blown by the cross-flow fan 23 is concentrated and columnar, so it can be used in multiple combinations to form a relay air flow transmission, the air speed is evenly distributed, and the air flow at the air outlet is distributed uniformly along the axial direction.

[0063] In addition, the shell 1 of the application can be surrounded by side plates, top plates and bottom plates, or can be integrally formed, which is not limited in the embodiment.

[0064] As shown in Figure 5 The application further provides a central air conditioner comprising the fan coil of any one of the above embodiments. Since the fan coil in the embodiment of the application is simple to assemble and can reduce condensation and water leakage, the central air conditioner comprising the fan coil is also easy to maintain and has a low risk of water leakage. The fan coil in the embodiment can have the same structure and achieve the same effect as the fan coil in the above embodiments, which is not described herein again.

[0065] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like, are intended to facilitate the description and are not intended to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", are only used to distinguish in the description, and have no special meaning.

[0066] In the description of the present application, the description referring to the terms "an embodiment", "an example", and the like, 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 present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0067] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the present application is only for the sake of clarity, and those skilled in the art should consider the present application as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0068] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as limiting the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to make creative efforts to conceive other specific embodiments of the present application, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A fan-coil, characterized in that, The application relates to a fan-coil unit. The application comprises: a housing (1) with a wind cavity (11); a blowing module (2) arranged at one of the cavity openings of the wind cavity (11), the blowing module (2) being used for sucking air in the wind cavity (11) and discharging the air out of the cavity opening; a heat exchange module (3) arranged at another cavity opening of the wind cavity (11), the edge of the heat exchange module (3) abutting against the cavity wall of the wind cavity (11); an integrated water collecting tray (4) with a collecting area (41) and a drainage area (42), the collecting area (41) being arranged at the bottom of the heat exchange module (3), the drainage area (42) being recessed at the bottom of the collecting area (41), and the plane of the heat exchange module (3) being inclined towards the drainage area (42) so that the condensed water on the heat exchange module (3) flows to the drainage area (42); a sealing plate (6) arranged in the wind cavity (11), the edge of the sealing plate (6) abutting against the heat exchange module (3), the blowing module (2) and the cavity wall of the wind cavity (11) respectively, and the sealing plate (6) being used for sealing the gap between the heat exchange module (3), the blowing module (2) and the cavity wall of the wind cavity (11); the integrated water collecting tray (4) further comprises a first clamping groove (43) and a second clamping groove (44), the sealing plate (6) is provided with a first clamping buckle (61), the blowing module (2) is provided with a second clamping buckle (21), the first clamping buckle (61) is correspondingly clamped with the first clamping groove (43), and the second clamping buckle (21) is correspondingly clamped with the second clamping groove (44); 2. The fan-coil of claim 1, wherein, the heat exchange module (3) comprises a fin heat exchanger (31) and a medium circulation pipe (32), the medium circulation pipe (32) is arranged in the fin heat exchanger (31), and the medium circulation pipe (32) is used for circulating heat exchange medium. The application further comprises:

3. The fan coil of claim 2, wherein, a filter screen (5) arranged in the wind cavity (11) and located between the heat exchange module (3) and the blowing module (2), the edge of the filter screen (5) abutting against the cavity wall of the wind cavity (11), and the filter screen (5) being used for filtering and absorbing moisture.

4. The fan coil of claim 2, wherein, The plane of the filter screen (5) is inclined towards the drainage area (42).

5. The fan coil of claim 1, wherein, The filter screen (5) is an activated carbon filter screen.

6. The fan coil of claim 1, wherein, The heat exchange module (3) further comprises a fixing plate (33), the fixing plate (33) being arranged at the two ends of the fin heat exchanger (31), and the fixing plate (33) being used for fixedly connecting the wind cavity (11).

7. A central air conditioner, characterized by comprising: The heat exchange module (3) further comprises a heater (34), the heater (34) being arranged at the side of the heat exchange module (3) away from the blowing module (2). The application further comprises the fan-coil unit according to any one of claims 1 to 6.

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