Duct type air conditioner

Abstract

The utility model discloses an air pipe machine which comprises a machine body, an air conditioner air inlet and an air conditioner air outlet are formed in the two ends of the machine body in the width direction respectively, and the machine body comprises a front panel provided with the air conditioner air outlet. The indoor heat exchanger and the heat exchange fan are arranged in the machine body; the fresh air outlet is formed in the front panel in a penetrating manner; the fresh air module communicates with the outdoor environment and the rear end of the fresh air outlet, the TVOC sensor is arranged on the rear side face, close to the heat exchange fan, of the front panel, and the TVOC sensor is arranged on one side of the fresh air outlet and located outside the containing cavity; the plurality of through holes are arranged on the front panel in a penetrating manner corresponding to the TVOC sensors; when the fresh air module works, air on the side, close to the heat exchange fan, of the front panel flows through the TVOC sensor and is sucked into the side, away from the heat exchange fan, of the front panel through the through hole, so that the TVOC detects the air quality of indoor air, and the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a duct air conditioner. Background Art

[0002] With the popularity of air conditioners, more and more users choose to install central air conditioners at home. As a type of central air conditioner, duct air conditioners are favored by users for their low cost, simple structure, hidden installation and other advantages. Existing duct air conditioners can usually be installed in the ceiling, which mainly includes a body and a heat exchange fan and an indoor heat exchanger installed inside the body. The body is provided with an air conditioning inlet and an air conditioning outlet. The heat exchange fan introduces air from the air conditioning inlet into the body, and after heat exchange in the indoor heat exchanger, the air conditioning air is formed and sent out from the outlet.

[0003] In order to realize the fresh air function, the duct air conditioner also includes a fresh air module to introduce outdoor fresh air into the room. At present, most duct air conditioner products on the market have the fresh air function, but users can only know whether the fresh air is turned on or not, but cannot know the effect of the fresh air on improving the air quality.

[0004] To address this problem, some products on the market currently have TVOC sensors designed to detect air quality at the fresh air module, which can let users know about the improvement in air quality. However, due to the design location of the TVOC sensor, such products usually have insensitive signals. When the indoor air quality is poor, even if the fresh air is turned on, the TVOC sensor cannot receive the air quality improvement effect brought by the fresh air. As a result, even if the fresh air is turned on, the TVOC sensor still cannot immediately improve the signal from poor quality to good quality, affecting the user experience. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end,

[0006] The utility model provides a duct machine, comprising:

[0007] A body, wherein a receiving cavity is formed inside the body, and an air-conditioning air inlet and an air-conditioning air outlet connected to the receiving cavity are respectively opened at two ends of the body in the width direction, and the body includes a front panel with the air-conditioning air outlet;

[0008] A heat exchange fan, wherein the heat exchange fan is arranged in the accommodating cavity;

[0009] An indoor heat exchanger, the indoor heat exchanger is arranged in the accommodating cavity; under the action of the heat exchange fan, indoor air enters the accommodating cavity through the air inlet of the air conditioner, and is output to the room through the air outlet of the air conditioner after heat exchange through the indoor heat exchanger;

[0010] A fresh air outlet is provided on the front panel;

[0011] A fresh air module is connected to the outdoor environment, and the fresh air module is connected to one end of the fresh air outlet close to the heat exchange fan, so as to introduce outdoor fresh air into the room through the fresh air outlet;

[0012] A TVOC sensor is disposed on the rear side of the front panel close to the heat exchange fan to detect pollutants in the indoor air, and the TVOC sensor is disposed on one side of the fresh air outlet and outside the accommodating cavity;

[0013] A plurality of through holes corresponding to the TVOC sensors are provided on the front panel;

[0014] When the fresh air module is working, the air on the side of the front panel close to the heat exchange fan will flow through the TVOC sensor and be sucked into the side of the front panel away from the heat exchange fan through the through hole.

[0015] The duct air conditioner provided by the technical solution realizes the fresh air function by setting the TVOC sensor on the leeward side of the front panel and setting the fresh air outlet on the front panel, so that negative pressure areas are formed on the front and rear sides of the front panel. By setting a through hole through the front panel, when the fresh air module is working, due to the existence of negative pressure, the air on the rear side of the front panel will be sucked into the front side of the front panel through the TVOC sensor and the through hole, so that TVOC detects the air quality of the indoor air, improves the detection accuracy, and facilitates users to timely understand the improvement effect of fresh air on air quality.

[0016] The utility model also provides a duct machine, which includes:

[0017] A body, wherein a receiving cavity is formed inside the body, and an air-conditioning air inlet and an air-conditioning air outlet connected to the receiving cavity are respectively opened at two ends of the body in the width direction, and the body includes a front panel with the air-conditioning air outlet;

[0018] A heat exchange fan, wherein the heat exchange fan is arranged in the accommodating cavity;

[0019] An indoor heat exchanger, the indoor heat exchanger is arranged in the accommodating cavity; under the action of the heat exchange fan, indoor air enters the accommodating cavity through the air inlet of the air conditioner, and is output to the room through the air outlet of the air conditioner after heat exchange through the indoor heat exchanger;

[0020] A fresh air outlet is provided on the front panel;

[0021] A fresh air module is connected to the outdoor environment, and the fresh air module is connected to one end of the fresh air outlet close to the heat exchange fan, so as to introduce outdoor fresh air into the room through the fresh air outlet;

[0022] A plurality of through holes are formed on the front panel and are located on one side of the fresh air outlet;

[0023] A TVOC sensor is disposed outside the accommodating cavity to detect pollutants in the indoor air, and the TVOC sensor corresponds to the through hole and is disposed on the side of the front panel close to the heat exchange fan;

[0024] When the fresh air module is working, the air on the side of the front panel close to the heat exchange fan will flow through the TVOC sensor and be sucked into the side of the front panel away from the heat exchange fan through the through hole.

[0025] The duct air conditioner provided by the technical solution can form a negative pressure area on the front and rear sides of the front panel when the fresh air module is working. By arranging the TVOC sensor on the leeward side of the front panel and providing a through hole through the front panel, when the fresh air module is working, the air on the rear side of the front panel will be sucked into the front side of the front panel through the TVOC sensor and the through hole, so that TVOC can detect the air quality of the indoor air and improve the detection accuracy. At the same time, it is convenient for users to timely understand the improvement effect of the fresh air on the air quality.

[0026] In some embodiments, a fresh air outlet area is recessed on the side of the front panel away from the heat exchange fan, the fresh air outlet and the through hole are opened on the fresh air outlet area, and the fresh air outlet area is provided with an air outlet grille to improve the appearance.

[0027] In some embodiments, the duct air conditioner also includes an installation back plate, which is connected to the side of the front panel close to the heat exchange fan, and an installation cavity for installing the TVOC sensor is formed between the installation back plate and the front panel, and the through hole is connected to the installation cavity, and a connecting hole connected to the installation cavity is formed on the installation back plate; by providing the connecting hole, the indoor air can flow from the connecting hole to the TVOC sensor and flow out through the through hole, thereby greatly improving the TVOC sensor's perception of indoor air.

[0028] In some of the embodiments, an enclosure portion is provided on the front panel, and several of the through holes are located in the enclosure portion; the mounting back plate is connected to the enclosure portion to form the mounting cavity, and a wiring portion connected to the mounting cavity, and the wiring portion is for the power supply line of the TVOC sensor to pass through, thereby facilitating the wiring setting.

[0029] In some embodiments, a first clamping portion is provided on the side of the front panel facing the mounting back plate, and a second clamping portion is provided on the mounting back plate. The first clamping portion and the second clamping portion are adaptably connected so that the mounting back plate can be detachably connected to the front panel, thereby facilitating the disassembly, assembly and replacement of the TVOC sensor.

[0030] In some embodiments, at least one fresh air module is provided, the fresh air module is located outside the accommodating cavity, and the fresh air module is located on one side of the machine body in the length direction. By arranging the fresh air module outside the machine body, the space occupied by the internal space of the machine body is reduced, and the volume of the machine body can be effectively reduced.

[0031] In some embodiments, the machine body also includes a main body, and the outlet and the air-conditioning air inlet are respectively provided at both ends of the main body in the width direction, and the front panel is connected to the outlet end of the main body so that the air-conditioning air outlet is connected to the outlet; the length dimension of the front panel is greater than the length dimension of the main body, and the air-conditioning air outlet and the fresh air outlet are spaced apart along the length direction of the front panel.

[0032] In some embodiments, the duct air conditioner also includes a sealing portion connected to one end of the body in the length direction, and the sealing portion includes a first sealing plate, a second sealing plate and a third sealing plate connected in sequence; the first sealing plate is flush with the front panel, and the second sealing plate is flush with the bottom end of the body; the third sealing plate is arranged opposite to the first sealing plate and connected to the second sealing plate, and the fresh air module is installed in the sealing portion; by setting the sealing portion, the through-installation requirements of the rear-mounted duct air conditioner are met.

[0033] In some of the embodiments, the fresh air module includes a fresh air inlet and a fresh air outlet, the fresh air inlet is connected to the outdoor environment, the fresh air outlet is connected to an air outlet duct, one end of the air outlet duct is connected to one end of the fresh air outlet close to the heat exchange fan; the fresh air module is connected to the fresh air outlet through the air outlet duct, thereby realizing fresh air outlet, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of an embodiment of the utility model air duct machine;

[0035] Figure 2 This is a schematic diagram of the structure of the machine body in one embodiment of the utility model air duct machine;

[0036] Figure 3 This is a front view of a body of an embodiment of the utility model duct machine;

[0037] Figure 4 yes Figure 3Sectional view in the AA direction;

[0038] Figure 5 This is a schematic structural diagram of the body of an embodiment of the utility model duct machine from another perspective;

[0039] Figure 6 This is an exploded view of the body and the front panel of an embodiment of the duct machine of the utility model;

[0040] Figure 7 It is a structural schematic diagram of an embodiment of the utility model of the air duct machine in which the air guide plate is omitted from the machine body;

[0041] Figure 8 This is a structural schematic diagram of a fresh air module in one embodiment of the utility model air duct machine;

[0042] Fig. 9 This is a structural schematic diagram of a fresh air module connected to an air outlet duct and an air inlet duct in one embodiment of the utility model air duct machine;

[0043] Fig.10 This is a schematic diagram of the structure of the front panel of an embodiment of the utility model duct machine;

[0044] Fig.11 It is a structural schematic diagram of an embodiment of the utility model of a duct machine in which the air guide plate opens the air outlet of the air conditioner;

[0045] Fig.12 It is a partial structural schematic diagram of the front panel of an embodiment of the utility model air duct machine;

[0046] Fig.13 It is a partial exploded view of the front panel, the mounting back panel and the sensor in one embodiment of the utility model air duct machine;

[0047] Fig.14 yes Fig.13 A partial enlarged view of point B in the middle;

[0048] Fig.15 It is a partial exploded view of the front panel and the mounting back panel of an embodiment of the utility model air duct machine;

[0049] Fig.16 yes Fig.15 A partial enlarged view of point C in the middle;

[0050] Fig.17 This is a schematic diagram of installing a back plate and a sensor in one embodiment of the utility model air duct machine;

[0051] Fig.18 This is an exploded view of the installation of the back plate and the sensor in one embodiment of the utility model duct machine;

[0052] Fig.19This is a schematic diagram of the structure of a sealed box in one embodiment of the utility model air duct machine Figure 1 ;

[0053] Fig. 20 This is a schematic diagram of the structure of a sealed box in one embodiment of the utility model air duct machine Figure 2 .

[0054] In the above figures: body 1; front panel 11; first clamping portion 111; main body 12; top plate 121; bottom plate 122; side plate 123; outlet 124; air-conditioning air inlet 13; air-conditioning air outlet 14; fresh air outlet 15; water receiving tray 16; accommodating chamber 17; air outlet grille 18; air guide plate 19; indoor heat exchanger 2; heat exchange fan 3; fresh air module 4; fresh air volute 41; fresh air inlet 42; fresh air outlet 43; air inlet duct 45; air outlet duct 46; through hole 5; TVOC sensor 6; mounting back plate 7; connecting hole 71; second clamping portion 72; enclosure 8; first sealing plate 91; second sealing plate 92; third sealing plate 93. DETAILED DESCRIPTION

[0055] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0056] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application may be combined with other embodiments without conflict.

[0057] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The terms "first", "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first", "second" may explicitly or implicitly include one or more of the features.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present application, the central air-conditioning duct-type indoor unit (duct unit for short) belongs to an air conditioner, which includes a duct unit (i.e., the indoor unit of the air conditioner) and an outdoor unit (i.e., the outdoor unit of the air conditioner). The air conditioner performs a refrigeration cycle of the indoor unit by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0061] The air duct machine provided by the embodiment of the utility model can have various implementation forms.

[0062] in, Figures 1 to 20 This is an illustrative embodiment of the duct air conditioner of the utility model. The duct air conditioner is set indoors and can be installed in the ceiling and on the ceiling. It can be used as a living room air conditioner, curtain air conditioner, and ceiling air conditioner to exchange heat with the indoor environment. The air conditioner can include an air conditioner outdoor unit, which is usually set outdoors to bring indoor heat to the outdoors.

[0063] refer to Figure 1 to Figure 3 The duct machine comprises a body 1. The body 1 can be installed in a suspended ceiling.

[0064] The machine body 1 has a top end and a bottom end, and the top end and the bottom end of the machine body 1 are two opposite ends of the machine body 1 in the vertical direction. The left side of the machine body 1 and the right side of the machine body 1 are two opposite sides in the length direction of the machine body 1, and the front side of the machine body 1 and the rear side of the machine body 1 are two opposite sides in the width direction of the machine body 1.

[0065] The interior of the body 1 defines a receiving chamber 17. The receiving chamber 17 is used to receive and fix various components in the duct machine, which can prevent foreign objects from colliding with various components in the body 1, thereby improving the reliability of the duct machine during transportation or installation.

[0066] In some embodiments of the present application, reference Figure 5 The body 1 may include an air conditioning air inlet 13 .

[0067] The air inlet 13 is in communication with the accommodating chamber 17 . The air inlet 13 serves as an inlet for the external air of the machine body 1 to flow in, allowing the indoor air to enter the accommodating chamber 17 through the air inlet 13 .

[0068] In some embodiments of the present application, reference Figure 3 The body 1 may include an air conditioning outlet 14 .

[0069] The air conditioning outlet 14 is in communication with the accommodating chamber 17 , and serves as an outlet for the heat exchange airflow in the machine body 1 , allowing the airflow in the accommodating chamber 17 to flow out through the air conditioning outlet 14 .

[0070] The air inlet 13 and the air outlet 14 are respectively disposed at two ends of the machine body 1 in the width direction thereof. That is, the air inlet 13 and the air outlet 14 are disposed opposite to each other in the width direction of the machine body 1.

[0071] refer to Figure 6 The machine body 1 comprises a main body 12, which is roughly in the shape of a rectangular parallelepiped. The two ends of the main body 12 in the width direction are respectively provided with an air inlet 13 and an outlet 18 for air conditioning.

[0072] The main body 12 includes a top plate 121 at the top, a bottom plate 122 at the bottom, and side plates 123 connected to the top plate 121 and the bottom plate 122 on the left and right sides. The top plate 121, the bottom plate 122, and the two side plates 123 enclose a receiving cavity 17, and the ends enclosed by the top plate 121, the bottom plate 122, and the two side plates 123 form an air conditioning air inlet 13 located at the rear side of the main body 12, and the front side of the main body 12 is provided with an air conditioning air inlet 13. The top plate 121, the bottom plate 122, and the side plates 123 can be connected in a split manner or in an integrated manner.

[0073] Continue to refer Figure 6 The machine body 1 may include a front panel 11. The front panel 11 is connected to the main body 12, and the front panel 11 is located at the outlet 18 of the main body 12 to realize the air outlet function of the air duct machine.

[0074] Specifically, the front panel 11 is connected to the main body 12 and covers the outlet 18. The air-conditioning outlet 14 is provided on the front panel 11 and extends along the length direction of the body 1. The air-conditioning outlet 14 is connected to the opening so that the air-conditioning wind at the outlet 18 flows into the room through the air-conditioning outlet 14.

[0075] It should be noted that the direction described in the article is based on the direction in which the user faces the duct machine, wherein the side facing the user when the duct machine is in use is defined as the front side, the opposite side is defined as the rear side, the left and right sides are distinguished by the direction in which the user faces the duct machine, and the upper and lower sides of the duct machine when it is generally working normally are defined to distinguish between up and down.

[0076] refer to Figure 4The duct machine may include an indoor heat exchanger 2. The indoor heat exchanger 2 is arranged in the accommodating cavity 17 and is used for heat exchange with the air entering the machine body 1.

[0077] The duct air conditioner may include a heat exchange fan 3. The heat exchange fan 3 is disposed in the accommodating chamber 17, and is used to drive the indoor air outside the machine body 1 into the accommodating chamber 17 through the air conditioning inlet 13, and to make the air in the accommodating chamber 17 flow along the air conditioning inlet 13 toward the air conditioning outlet 14.

[0078] When the duct air conditioner is running, driven by the heat exchange fan 3, the indoor air enters the accommodating chamber 17 through the air-conditioning air inlet 13, and the indoor air in the accommodating chamber 17 flows through the indoor heat exchanger 2 for heat exchange. The heat exchanged air flows outwardly into the room through the air-conditioning air outlet 14, thereby making the air conditioner cool and heat, playing the role of regulating the indoor temperature to achieve a comfortable temperature for the user.

[0079] In this embodiment, the heat exchange fan 3 is a cross-flow fan. Due to the characteristics of the cross-flow fan, the cross-flow fan is arranged close to the air outlet 14 of the air conditioner, and the indoor heat exchanger 2 is arranged close to the air inlet 13 of the air conditioner. The cross-flow fan is located between the air outlet 14 of the air conditioner and the indoor heat exchanger 2. The cross-flow fan rotates to introduce air from the air inlet 13 of the air conditioner into the body 1, and the air is formed into air-conditioned air after heat exchange in the indoor heat exchanger 2 and is sent out from the air outlet 14 of the air conditioner.

[0080] The cross-flow fan 33 is extended along the length direction of the machine body 1, that is, the length direction of the machine body 1 is the axial direction of the cross-flow fan 33. Since the cross-flow fan 33 is small in size, the size of the duct machine is further reduced, the depth of the ceiling is reduced, the problem of room oppression is solved, and the aesthetics of the room is improved.

[0081] In this embodiment, the indoor heat exchanger 2 is a multi-stage heat exchanger.

[0082] The indoor heat exchanger 2 includes multiple sections so that the indoor heat exchanger 2 has a semi-enclosed structure. Part of the cross-flow fan 33 is arranged in the semi-enclosed structure of the indoor heat exchanger 2, so that the cross-flow fan 33 and the indoor heat exchanger 2 are transformed from being originally separately arranged to being overlappingly arranged. When the volume of the cross-flow fan 33 and the indoor heat exchanger 2 remains unchanged, the space occupied by the indoor heat exchanger 2 and the cross-flow fan 33 is greatly reduced.

[0083] Continue to refer Figure 4 The indoor heat exchanger 2 includes two sections, namely the first section heat exchanger and the second section heat exchanger. The first section heat exchanger and the second section heat exchanger are connected to form a V shape, and the open end of the V shape faces the air outlet 14 of the air conditioner, and the closed end of the V shape faces the air inlet 13 of the air conditioner. This arrangement increases the heat exchange area of ​​the indoor heat exchanger 2, improves the heat exchange efficiency of the air duct machine, and increases the amount of air exchanged.

[0084] The heat exchange fan 3 further includes a driving motor, which is used to drive the heat exchange fan 3 to rotate. The driving motor is arranged at one end of the heat exchange fan 3 .

[0085] In some embodiments, the duct unit may include a water receiving pan 16. The water receiving pan 16 is disposed at the bottom of the accommodating chamber 17 and is used to receive condensed water flowing down from the indoor heat exchanger 2 when the duct unit is working. The water receiving pan 16 is provided with a drain port for discharging the condensed water in the water receiving pan 16 out of the duct unit.

[0086] In some embodiments thereof, the duct air conditioner may include an air guide plate 19. The air guide plate 19 is rotatably connected to the machine body 1 to open or close the air outlet 14 of the air conditioner.

[0087] In this embodiment, a single air guide plate 19 is used to open or shield the air outlet 14 of the air conditioner, thereby increasing the air supply distance. The air guide plate 19 is set to be extra long, which increases the aesthetics of the entire machine.

[0088] The length of the air guide plate 19 is greater than the sum of the length of the air conditioning outlet 14 and the length of the fresh air outlet 15. The air guide plate 19 can open or close the air conditioning outlet 14 and the fresh air outlet 15 at the same time.

[0089] That is to say, the air guide plate 19 can simultaneously shield the fresh air outlet 15 when the air-conditioning outlet 14 is closed.

[0090] The air conditioner outer unit may include an outdoor housing. An outdoor heat exchange air duct may be arranged in the outdoor housing.

[0091] The outdoor housing may include an outdoor air inlet, which may be in communication with the outdoor heat exchange air duct, and may be used to introduce outdoor air into the outdoor heat exchange air duct.

[0092] The outdoor housing may include an outdoor air outlet, which may be connected to the outdoor heat exchange air duct, and may be used to lead the air in the outdoor heat exchange air duct out of the outdoor heat exchange air duct.

[0093] The air conditioner outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger may be arranged in an outdoor heat exchange air duct.

[0094] The air conditioner outer unit may include an outdoor fan. The outdoor fan may be arranged in an outdoor heat exchange air duct.

[0095] The rotation of the outdoor fan causes the outdoor air to enter the heat exchange duct from the outdoor air inlet to exchange heat with the outdoor heat exchanger, and the outdoor air after heat exchange flows out of the outdoor heat exchange duct from the outdoor air outlet.

[0096] The air conditioner may include a compressor, which is arranged in an outdoor heat exchange air duct.

[0097] The air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be provided in the air conditioner indoor unit 100 or the air conditioner outdoor unit.

[0098] The air conditioner performs the refrigeration cycle of the air conditioner by using a compressor, a condenser, a throttling device and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat exchanged.

[0099] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state, and the discharged refrigerant gas flows into the condenser.

[0100] The condenser condenses the compressed refrigerant into liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0101] The throttle device expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.

[0102] The evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in a low temperature and low pressure state to the compressor.

[0103] The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the whole cycle, the air conditioner can adjust the temperature of the indoor space.

[0104] Among the indoor heat exchanger 2 and the outdoor heat exchanger, one is a condenser and the other is an evaporator. When the indoor heat exchanger 2 is used as a condenser, the air conditioner is used as a heater in the heating mode, and when the indoor heat exchanger 2 is used as an evaporator, the air conditioner is used as a cooler in the cooling mode.

[0105] In some embodiments thereof, in order to realize the fresh air function, reference is made to Figure 1 The duct unit may include a fresh air module 4 for introducing outdoor fresh air into the room, improving indoor air quality and enhancing user experience.

[0106] The fresh air module 4 is connected to the outdoor environment and is used to introduce outdoor air into the fresh air module 4. The fresh air module 4 is connected to one end of the fresh air outlet 15 close to the heat exchange fan 3 to introduce outdoor fresh air into the room through the fresh air outlet 15.

[0107] Specifically, refer to Figure 7 , Figure 8 The fresh air module 4 may include a fresh air volute 41. A fresh air duct is defined in the fresh air volute 41.

[0108] The fresh air module 4 may include a fresh air inlet 42. The fresh air inlet 42 is provided on the fresh air volute 41 and is suitable for communicating with the external environment.

[0109] The fresh air module 4 may include a fresh air outlet 43. The fresh air outlet 43 is provided on the fresh air volute 41 and communicates with the fresh air duct.

[0110] The fresh air module 4 may include a fresh air fan. The fresh air fan is arranged in the fresh air duct. When the fresh air fan operates, outdoor fresh air is introduced into the fresh air duct through the fresh air inlet 42 and blown out through the fresh air outlet 43. The fresh air fan is a centrifugal fan.

[0111] refer to Fig. 9 The duct unit may include a fresh air outlet 15 , and the fresh air outlet 15 is arranged through the front panel 11 so that outdoor fresh air flows into the room through the fresh air outlet 15 .

[0112] refer to Figure 1 , Figure 8 The fresh air outlet 43 is connected to an air outlet pipe 46, one end of which is connected to an end of the fresh air outlet 15 close to the heat exchange fan 3, so that the fresh air module 4 is connected to the fresh air outlet 15 through the air outlet pipe 46. The outdoor fresh air is blown out from the front side of the front panel 11 through the fresh air outlet 15.

[0113] In some embodiments thereof, the duct air conditioner may include an air inlet duct 45. One end of the air inlet duct 45 is communicated with the outdoor environment, and the other end thereof is communicated with the fresh air inlet 42.

[0114] Continue to refer Fig. 9 The air duct unit may include a plurality of through holes 5 , and the plurality of through holes 5 are located on one side of the fresh air outlet 15 .

[0115] A plurality of through holes 5 are formed on the front panel 11 along the width direction of the housing 1 , that is, the through holes 5 communicate with the front and rear sides of the front panel 11 .

[0116] refer to Fig.10 The duct unit may include a TVOC sensor 6. The TVOC sensor 6 is arranged outside the accommodating cavity to detect pollutants in the indoor air.

[0117] The TVOC sensor 6 is disposed on the side of the front panel 11 close to the heat exchange fan 3 corresponding to the through hole 5 , that is, the TVOC sensor 6 is disposed on the leeward side (rear side) of the front panel 11 .

[0118] It can be understood that after the fresh air function is turned on, the fresh air module 4 works, and the outdoor fresh air flows out through the fresh air outlet 15 away from one end (front end) of the heat exchange fan 3, causing the air flow rate on the front side of the front panel 11 at the fresh air outlet 15 to increase, thereby reducing the front side pressure of the front panel 11.

[0119] On the other hand, since there is no wind passing through the rear side of the front panel 11, the air velocity is low and the pressure on the front side of the front panel 11 is high. As a result, a negative pressure area is formed on both sides of the front panel 11.

[0120] In this embodiment, a number of through holes 5 are provided, and the TVOC sensors 6 are provided corresponding to the number of through holes 5. Due to the negative pressure difference, after the fresh air is turned on, the air around the TVOC sensor 6 on the rear side of the front panel 11 will be sucked into the front side of the front panel 11 through the number of through holes 5, thereby ensuring that the TVOC sensor 6 detects the air quality of the indoor air rather than the fresh air quality, thereby improving the detection accuracy, avoiding the problem of insensitive received signals, and making it convenient for users to promptly understand the improvement effect of the fresh air on the air quality.

[0121] In some other embodiments of the present application, the TVOC sensor 6 is disposed on the rear side of the front panel 11 near the heat exchange fan 3 to detect pollutants in the indoor air. The TVOC sensor 6 is disposed on one side of the fresh air outlet 15 and outside the accommodating cavity. A plurality of through holes 5 may correspond to the TVOC sensor 6 and are disposed through the front panel 11.

[0122] In some other embodiments of the present application, a fresh air outlet area is recessed on the side of the front panel 11 away from the heat exchange fan 3. The fresh air outlet 15 and the through hole 5 are provided on the fresh air outlet area.

[0123] It can be understood that the area of ​​the fresh air outlet zone is larger than the area of ​​the fresh air outlet 15 .

[0124] By setting the fresh air outlet area, the outdoor fresh air flowing out of the fresh air outlet 15 passes through the fresh air outlet area, increasing the air flow rate in front of the fresh air outlet area, thereby reducing the pressure in the fresh air outlet area.

[0125] In some other embodiments of this application, refer to Fig.11 The fresh air outlet area is provided with an air outlet grille 18. The air outlet grille 18 covers the fresh air outlet 15 and a plurality of through holes to improve the appearance.

[0126] In some other embodiments of this application, refer to Figures 12 to 18 The duct machine may include a mounting back plate 7. The mounting back plate 7 is connected to the side of the front panel 11 close to the heat exchange fan 3.

[0127] An installation cavity is formed between the installation back plate 7 and the front panel 11, and the installation cavity is used to install the TVOC sensor 6. The through hole 5 is connected to the installation cavity, and a connecting hole 71 connected to the installation cavity is opened on the installation back plate 7.

[0128] By providing the connecting hole 71 , a passage can be formed between the installation cavity and the fresh air on the front side of the front panel 11 , so that the indoor air can flow from the connecting hole 71 into the TVOC sensor 6 inside the installation cavity.

[0129] In this embodiment, the TVOC sensor 6 is installed on the mounting back plate 7 , and the mounting back plate 7 is mounted on the front panel, so that the TVOC sensor 6 is installed on the front panel 11 .

[0130] In some other embodiments of the present application, an enclosure portion 8 is provided on the front panel 11 , and a plurality of through holes 5 are located in the enclosure portion 8 .

[0131] In this embodiment, the mounting back plate 7 is connected with the enclosure 8 to form a mounting cavity and a wiring portion communicating with the mounting cavity, wherein the wiring portion is provided for the power supply line of the TVOC sensor 6 to pass through, so as to facilitate the wiring arrangement.

[0132] In some other embodiments of the present application, a first clamping portion is provided on one side of the front panel 11 facing the mounting back panel 7. The first clamping portion may be a buckle structure.

[0133] In some other embodiments of the present application, a second clamping portion is provided on the mounting back plate 7. The second clamping portion may be a clamping slot structure.

[0134] The first clamping portion is adaptively connected to the second clamping portion so that the mounting back plate 7 can be detachably connected to the front panel 11 , thereby facilitating the disassembly, assembly and replacement of the TVOC sensor 6 .

[0135] In some other embodiments of the present application, at least one fresh air module 4 is provided. The fresh air module 4 is located outside the accommodating cavity.

[0136] By arranging the fresh air module 4 outside the machine body 1 , the internal space occupied by the machine body 1 is reduced, and the volume of the machine body 1 can be effectively reduced.

[0137] refer to Fig.19 In this embodiment, the fresh air module 4 is located on one side of the machine body 1 in the length direction.

[0138] In some other embodiments of the present application, the length dimension of the front panel 11 is greater than the length dimension of the main body 12 , and the air conditioning outlet 14 and the fresh air outlet 15 are arranged at intervals along the length direction of the front panel 11 .

[0139] In this embodiment, by setting the length of the front panel 11 to be greater than the length of the main body 12 , the arrangement of the fresh air outlet 15 is facilitated.

[0140] The fresh air outlet 15 and the air conditioning outlet 14 are arranged on the front panel 11 , and the fresh air outlet 15 is located on one side of the air conditioning outlet 14 in the length direction of the front panel 11 to avoid occupying the space of the air conditioning outlet 14 .

[0141] In some other embodiments of the present application, the duct machine may include a sealed box, wherein the sealed cavity has a receiving space inside, and the fresh air module 4 is installed in the receiving space inside the sealed box.

[0142] refer to Fig.19 , Fig. 20 The sealing portion is connected to one end of the body 1 in the length direction so that the fresh air module 4 is located on one side of the body 1.

[0143] The sealing portion may include a first sealing plate 91 . One end of the first sealing plate 91 in the length direction is connected to one end of the body 1 in the length direction, and the first sealing plate 91 is flush with the front panel 11 .

[0144] The sealing portion may include a second sealing plate 92. The second sealing plate 92 is connected to the bottom end of the first sealing plate 91, and the second sealing plate 923 is flush with the bottom plate.

[0145] The sealing portion may include a third sealing plate 93. The third sealing plate 93 is disposed opposite to the first sealing plate 91, and the third sealing plate 93 is connected to an end of the second sealing plate 92 away from the first sealing plate 91.

[0146] Among them, the first sealing plate 91, the second sealing plate 92 and the third sealing plate 93 are connected in sequence to form a sealing portion, and the fresh air module 4 is installed in the sealing portion.

[0147] By providing a sealing portion, the through-installation requirements of the post-installed duct unit can be met. That is, after the decoration is completed, when the user wants to purchase a duct unit central air conditioner and wants a fresh air function at the same time, the duct unit provided in this embodiment can meet the needs of such user groups.

[0148] It can be understood that the sealing parts on both sides serve as decorative panels with appearance on both sides, sealing the space on both sides of the duct machine, and wiring and piping can be routed inside and the fresh air module 4 can be installed.

[0149] In this embodiment, two fresh air modules 4 are configured, and two sealing boxes are configured corresponding to the fresh air modules 4. The two sealing boxes are respectively connected to both ends of the machine body 1 in the length direction.

[0150] That is to say, the first sealing plate 91, the second sealing plate 92 and the third sealing plate 93 are connected to both sides of the length direction of the body 100, which can meet the installation requirements of the rear-mounted duct machine, so that the gaps between the body 1 and both sides of the wall can be blocked.

[0151] In general, in order to ensure the effect of the air conditioner, the air outlet 14 of the air conditioner usually blows toward the center of the room, so the air duct unit is usually set in the center of the ceiling near the wall. At this time, the body 1 of the air duct unit is a certain distance away from the walls on both sides of the length direction, and the space is closed by the sealing boxes on both sides to achieve the effect of hiding the air duct unit in the ceiling and improve the aesthetics.

[0152] It should be noted that the first sealing plate 91, the second sealing plate 92 and the third sealing plate 93 can be formed by an extrusion mold, and their lengths are not limited. They can be cut according to user needs to meet the through-installation requirements of different living rooms.

[0153] In this embodiment, when the central air conditioner is sold from the factory, the duct unit includes a body 1 and a sealing box. During installation, the first sealing plate 91, the second sealing plate 92 and the third sealing plate 93 are placed close to the body 1, and the body 1 and the sealing box are directly installed on the ceiling.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0155] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A duct machine, characterized in that: include: A body, wherein a receiving cavity is formed inside the body, and an air-conditioning air inlet and an air-conditioning air outlet connected to the receiving cavity are respectively opened at two ends of the body in the width direction, and the body includes a front panel with the air-conditioning air outlet; An indoor heat exchanger is arranged in the accommodating cavity; A heat exchange fan is arranged in the accommodating chamber; under the action of the heat exchange fan, indoor air enters the accommodating chamber through the air inlet of the air conditioner, and is output to the room through the air outlet of the air conditioner after heat exchange through the indoor heat exchanger; A fresh air outlet is provided on the front panel; A fresh air module is connected to the outdoor environment, and the fresh air module is connected to one end of the fresh air outlet close to the heat exchange fan, so as to introduce outdoor fresh air into the room through the fresh air outlet; A TVOC sensor is disposed on the rear side of the front panel close to the heat exchange fan to detect pollutants in the indoor air, and the TVOC sensor is disposed on one side of the fresh air outlet and outside the accommodating cavity; A plurality of through holes corresponding to the TVOC sensors are provided on the front panel; When the fresh air module is working, the air on the side of the front panel close to the heat exchange fan will flow through the TVOC sensor and be sucked into the side of the front panel away from the heat exchange fan through the through hole.

2. A duct machine, characterized in that: include: A body, wherein a receiving cavity is formed inside the body, and an air-conditioning air inlet and an air-conditioning air outlet connected to the receiving cavity are respectively opened at two ends of the body in the width direction, and the body includes a front panel with the air-conditioning air outlet; An indoor heat exchanger is arranged in the accommodating cavity; A heat exchange fan is arranged in the accommodating chamber; under the action of the heat exchange fan, indoor air enters the accommodating chamber through the air inlet of the air conditioner, and is output to the room through the air outlet of the air conditioner after heat exchange through the indoor heat exchanger; A fresh air outlet is provided on the front panel; A fresh air module is connected to the outdoor environment, and the fresh air module is connected to one end of the fresh air outlet close to the heat exchange fan, so as to introduce outdoor fresh air into the room through the fresh air outlet; A plurality of through holes are formed on the front panel and are located on one side of the fresh air outlet; A TVOC sensor is disposed outside the accommodating cavity to detect pollutants in the indoor air, and the TVOC sensor corresponds to the through hole and is disposed on the side of the front panel close to the heat exchange fan; When the fresh air module is working, the air on the side of the front panel close to the heat exchange fan will flow through the TVOC sensor and be sucked into the side of the front panel away from the heat exchange fan through the through hole.

3. The air duct machine according to claim 1 or 2, characterized in that: A fresh air outlet area is recessed on the side of the front panel away from the heat exchange fan, the fresh air outlet and the through hole are opened on the fresh air outlet area, and the fresh air outlet area is provided with an air outlet grille.

4. The air duct machine according to claim 1 or 2, characterized in that: It also includes an installation back plate, which is connected to the side of the front panel close to the heat exchange fan, and an installation cavity for installing the TVOC sensor is formed between the installation back plate and the front panel, the through hole is connected to the installation cavity, and a connecting hole connected to the installation cavity is opened on the installation back plate.

5. The air duct machine according to claim 4, characterized in that: The front panel is provided with an enclosure, and the plurality of through holes are located in the enclosure; the mounting back plate is connected with the enclosure to form the mounting cavity and a wiring portion communicating with the mounting cavity.

6. The air duct machine according to claim 4, characterized in that: A first clamping portion is disposed on a side of the front panel facing the mounting back plate, and a second clamping portion is disposed on the mounting back plate. The first clamping portion and the second clamping portion are adapted to be connected.

7. The air duct machine according to claim 1 or 2, characterized in that: The fresh air module is provided with at least one, and the fresh air module is located outside the accommodating cavity, and the fresh air module is located at one side in the length direction of the machine body.

8. The air duct machine according to claim 7, characterized in that: The machine body also includes a main body, and the two ends of the main body in the width direction are respectively provided with an outlet and the air-conditioning air inlet, and the front panel is connected to the outlet end of the main body so that the air-conditioning air outlet is connected to the outlet; the length dimension of the front panel is greater than the length dimension of the main body, and the air-conditioning air outlet and the fresh air outlet are spaced apart along the length direction of the front panel.

9. The air duct machine according to claim 7, characterized in that: It also includes a sealing portion connected to one end of the body in the length direction, the sealing portion includes a first sealing plate, a second sealing plate and a third sealing plate connected in sequence; the first sealing plate is flush with the front panel, and the second sealing plate is flush with the bottom end of the body; the third sealing plate is arranged opposite to the first sealing plate and is connected to the second sealing plate, and the fresh air module is installed in the sealing portion.

10. The air duct machine according to claim 1 or 2, characterized in that: The fresh air module includes a fresh air inlet and a fresh air outlet, the fresh air inlet is connected to the outdoor environment, the fresh air outlet is connected to an air outlet pipe, and one end of the air outlet pipe is connected to one end of the fresh air outlet close to the heat exchange fan.

Images