Air conditioner and air conditioner

Abstract

The present application relates to an indoor unit of an air conditioner and an air conditioner. The indoor unit of the air conditioner includes a heat exchanger module and a fan module; the heat exchanger module includes a first shell, an electronic expansion valve is installed in the first shell, and the top surface, bottom surface, left side and right side of the first shell all have first installation holes; the fan module includes a second shell, and the second shell has an air outlet in a fixed direction; when the heat exchanger module is in a preset installation state, the second shell can be detachably connected to the top surface or bottom surface of the first shell, and the electronic expansion valve always maintains a vertically upward installation state, one of the first installation holes forms an air inlet, and the air inlet maintains a sealed connection with the air outlet in the same direction; at the same time, the remaining first installation holes are all in an openable and closable sealing state, and the openable and closable sealing state is achieved by disassembling and assembling the cover in a changing direction, and is used to form a circumferential side sealed air duct.

Description

Technical Field

[0001] The present application relates to the field of duct type air conditioner indoor units, and in particular to an air conditioner indoor unit and an air conditioner. Background Art

[0002] The household type is a common duct type air conditioner in the US market. It generally includes a heat exchanger module and a fan module. To adapt to different installation environments, this type of air conditioner has the function of switching installation methods. Since the position and installation method of the pipeline and internal structure are fixed, when changing different installation methods (including vertical installation and horizontal installation), the electronic expansion valve of the air conditioner indoor unit may be placed horizontally. It should be pointed out that in the conventional requirements, the electronic expansion valve should be installed vertically in the pipeline system. If it is horizontal or inverted, it will affect the long-term reliability of the electronic expansion valve, and thus affect the service life of the air conditioner.

[0003] For example, common household units on the market are all installed in the factory default upper air outlet mode, and the electronic expansion valve is installed vertically by default. If the existing air-conditioning indoor unit structure is used, since the installation method between the fan module and the heat exchanger module is fixed, if it needs to be adjusted according to the change of the air inlet or outlet direction, the vertical state needs to be mechanically changed to a horizontal state by rotating 90°. In this way, the electronic expansion valve is placed horizontally when installed horizontally. Summary of the invention

[0004] The present application provides an indoor unit of an air conditioner and an air conditioner to solve the technical problem in the prior art that the electronic expansion valve is placed horizontally after the household unit is changed from a vertical installation state to a horizontal installation state.

[0005] The indoor unit of an air conditioner provided by the present invention comprises a heat exchanger module and a fan module; the heat exchanger module comprises a first shell, an electronic expansion valve is installed in the first shell, and the top surface, bottom surface, left side and right side of the first shell are all provided with first installation holes; the fan module comprises a second shell, and the second shell is provided with an air outlet in a fixed direction; when the heat exchanger module is in a preset installation state, the second shell can be detachably connected with the top surface or bottom surface or left side or right side of the first shell, one of the first installation holes forms an air inlet, and the air inlet and the air outlet are kept in sealed communication in the same direction; at the same time, the remaining first installation holes are all in an openable and closable sealed state, and the openable and closable sealed state is achieved by disassembling and assembling the two covers in changing directions, so as to form an air duct with a circumferential side seal;

[0006] When the vertical installation is adopted, the second shell is detachably connected to the top surface or the bottom surface of the first shell, and the two covers are detachably connected to the left and right sides of the first shell respectively, so as to block the first installation holes on the left and right sides of the first shell;

[0007] When the horizontal installation is adopted, the second shell is detachably connected to the left side or the right side of the first shell, one of the covers is detachably connected to the right side or the left side of the first shell to block the corresponding first installation hole, and the other cover is detachably connected to the top surface of the first shell to block the corresponding first installation hole;

[0008] In both installation states of the vertical installation mode and the horizontal installation mode, each vertical surface of the first shell is always in a vertical state, and the electronic expansion valve always maintains a vertically upward installation state.

[0009] Wherein, the first shell further has a baffle, and the baffle is the covering, and the two first mounting holes arranged opposite to each other can be detachably connected to one of the baffles.

[0010] The first shell adopts a cubic structure, and the dimensions of each side surface of the first shell are equal to the dimensions of the side surface of the second shell where the air outlet is located.

[0011] Wherein, the heat exchanger module further includes an evaporator, which is obliquely mounted on the first shell, and a windward channel of a fixed area is formed between the windward side of the evaporator and the air outlet of the second shell.

[0012] Wherein, the evaporator is constructed as a plate evaporator, and the heat exchanger module also includes support plates arranged in pairs, each of which is used to support the windward side of the evaporator to form the windward channel of a fixed area between the windward side and the first mounting hole on either side.

[0013] Among them, the heat exchanger module also includes a water receiving tray, which is movably mounted on the first shell, the water receiving tray is located below the evaporator, the water receiving tray has a drainage hole, the bottom surface of the water receiving area of ​​the water receiving tray is inclined, and the drainage hole is located in a low position area.

[0014] Wherein, the water receiving tray is constructed as a U-shaped structure.

[0015] The water receiving tray comprises three water receiving areas connected in sequence, and the bottom surface of each water receiving area is inclined.

[0016] The bottom surface of each water receiving area has different heights at different inflection points, so that each water receiving area forms a different inclined channel, and the drainage hole of the water receiving tray is located at the downstream position of each inclined channel.

[0017] Wherein, there is one drainage hole.

[0018] The air conditioner provided by the present invention comprises the aforementioned air conditioner indoor unit.

[0019] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0020] The air conditioner indoor unit and air conditioner provided in the embodiments of the present application take into account the actual installation scenarios of the air conditioner indoor unit. They are generally applied to duct-type air conditioner indoor units, also known as household units, which generally include two parts: a heat exchanger module and a fan module. In order to enable the household unit to flexibly adapt to both vertical and horizontal application scenarios, in the air conditioner indoor unit provided by the present solution, the heat exchanger module includes a first shell, each side of the first shell has a first mounting hole; the fan module includes a second shell, and the second shell has an air outlet in a fixed direction; the second shell can be detachably connected to any side of the first shell, one of the first mounting holes forms an air inlet, and the air inlet and the air outlet maintain a sealed connection in the same direction; at the same time, the remaining first mounting holes are all in a sealed state that can be opened and closed.

[0021] It should be pointed out that the description of the heat exchanger module being in a preset installation state in the present application can be understood as that the installation direction of the heat exchanger module and the structural components therein remain unchanged, that is, the electronic expansion valve in the heat exchanger module is always in a vertically upward installation state, and will not change due to the change in the position of the detachable connection between the first shell and the second shell. In this way, without changing the installation orientation of the heat exchanger module (that is, the electronic expansion valve in the heat exchanger module is always in a vertically upward installation state), the second shell of the fan module can be detachably connected to any side of the first shell of the heat exchanger module. At the same time, the first installation hole on one side of the first shell constitutes the air inlet of the overall device, and the air inlet and the air outlet of the second shell are sealed and connected in the same direction. For example, the directions of the air inlet and the air outlet are in the same straight line. It can also be understood that the airflow entering the first shell (heat exchanger module) through the air inlet does not need to turn and can be directly discharged through the air outlet of the second shell (fan module), thereby ensuring that the heat exchanger module does not change its own installation direction. That is, no matter whether it is installed vertically or horizontally, the electronic expansion valve in the heat exchanger module is always in a vertically upward installation state, and the vertical surface of each side of the heat exchanger module is always in a vertical surface, and will not be tilted from the vertical surface to the plane or inverted position; further, using the solution of the air conditioner indoor unit of the present application, the air outlet of the overall equipment is fixed, and with the change of the connection side between the fan module and the heat exchanger module, the position of the air inlet of the heat exchanger module can be changed, thereby changing the direction of the air flow through the surface of the heat exchange tube. At the same time, with the change of the position of the air inlet, the formation position of the circumferential side sealed air duct formed by the covering is also changing, but the installation orientation of the electronic expansion valve is always vertically upward. In this way, the heat exchanger module can be installed in a sealed connection with the air outlet of the fan module in the same direction, thereby ensuring the normal operation of the cooling or heating function of the household machine, and the electronic expansion valve will not be installed horizontally or inverted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0025] Figure 1 A schematic diagram of the structure of the fan module and the heat exchanger module provided in the embodiment of the present application in a vertical installation state;

[0026] Figure 2 for Figure 1 Schematic diagram of the internal structure of the blower module and the heat exchanger module;

[0027] Figure 3 The fan module and the heat exchanger module provided in the embodiment of the present application are schematically shown in the horizontal installation state. Figure 1 ;

[0028] Figure 4 The fan module and the heat exchanger module provided in the embodiment of the present application are schematically shown in the horizontal installation state. Figure 2 ;

[0029] Figure 5 for Figure 4 Schematic diagram of the installation structure between the evaporator, the water tray and the support plate;

[0030] Figure 6 A schematic diagram of the structure of the water receiving tray provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Fan module; 101. Second housing; 102. Centrifugal fan; 103. Motor; 104. Electrical box component; 105. Air outlet;

[0033] 2. Heat exchanger module; 201. First shell; 2011. First mounting hole; 202. Baffle; 203. Connecting pipe assembly; 204. Evaporator; 205. Water tray; 2051. Drain hole; 206. Electronic expansion valve; 207. Support plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0035] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0037] From the appearance, the air conditioner includes an indoor unit and an outdoor unit connected to the indoor unit through a pipe. In fact, the air conditioner is composed of four core components, including: compressor, condenser, throttling expansion valve and evaporator. The pipes used to connect the indoor unit and the outdoor unit are generally copper pipes, and the copper pipes are filled with refrigerant for heat exchange. The air conditioner has a cooling function. In essence, the air conditioner absorbs a lot of indoor heat. With less indoor heat, the temperature naturally decreases. The boiling point of the refrigerant used by the air conditioner is generally close to room temperature. The refrigerant is the refrigerant. In the air conditioner, the copper pipe with the refrigerant circulating is used as a transmission belt for transporting heat, and a curved structure is designed between the indoor unit and the outdoor unit to increase the heat absorption area and the heat dissipation area. In the indoor unit, the refrigerant in the copper pipe boils to absorb the indoor heat and turns into gas. It is then transported to the outdoor unit through the copper pipe, and the absorbed heat is released through condensation. This cycle repeats. The fan can blow cold air out of the indoor unit to achieve the cooling effect.

[0038] Regarding ordinary air conditioners, they generally include cabinet units, wall units, duct units and central air conditioners. Cabinet units and wall units are vertical air conditioners and wall units respectively. They are both an outdoor unit and an indoor unit. Their characteristics are: cheap, ready to use, suitable for all ages, but they take up more space. Among them, central air conditioners (using multi-machine linkage mode) generally have one outdoor unit with multiple indoor units, that is, one-to-three, one-to-four and other air conditioning modes. The advantages of central air conditioners are: beautiful, hidden, more beautiful, high comfort, long service life, especially the mute effect is particularly good, because it only includes one outdoor unit, and the outdoor unit is set far away from the room, so the noise generated by the outdoor unit will not affect the room. Here we have to mention cabinet units or wall units. Each room is matched with an outdoor unit and an indoor unit, which is easy to produce a buzzing sound. The disadvantages of central air conditioning are: expensive, affecting the room height, not energy-efficient and inconvenient maintenance (the return air outlet and the inspection port are integrated. The duct air conditioner, also known as the duct air conditioner, is commonly known as one-to-one, consisting of an outdoor unit and an indoor unit. The indoor unit here is buried in the ceiling, which is suitable for small-space apartments. Its advantages are: high cost performance, combining the price of cabinet units with the beauty of central air conditioners. Its disadvantages are: slightly noisy. It should be noted that a suitable ceiling needs to be designed before installing the duct air conditioner.

[0039] Taking the duct unit as an example, the general purchase requirements are: combining beauty and energy saving, generally suitable for living rooms. In general, the indoor unit of the duct unit will be installed at a position far from the outdoor unit, but based on the complexity and diversity of the installation environment, some positions are suitable for vertical installation and some positions are suitable for horizontal installation. Using the existing indoor unit structure of the duct unit, the indoor unit of the duct unit generally includes a heat exchanger module and a fan module connected to the heat exchanger module in a fixed direction. For example, when the preset installation orientation of the indoor unit of the duct unit is vertical installation, the electronic expansion valve in the heat exchanger module remains in a vertical upward installation state. However, if the indoor unit of the duct unit cannot be installed vertically due to the narrow installation environment or the limitation of the air inlet and outlet position area of ​​the air duct, the indoor unit of the duct unit cannot be installed vertically. In such cases, the duct unit can only be installed horizontally by rotating the angle. In the horizontal installation state, since the heat exchanger module is rotated by the installation angle, the electronic expansion valve will be installed horizontally, which will affect the long-term reliability of the electronic expansion valve and thus affect the service life of the air conditioner.

[0040] In order to alleviate the above problems, Figure 1-Figure 6The present invention provides a household unit, more specifically, an indoor unit of an air conditioner of a household unit, which includes a heat exchanger module 2 and a fan module 1; wherein the heat exchanger module 2 includes a first shell 201, each side of the first shell 201 has a first mounting hole 2011; wherein the fan module 1 includes a second shell 101, and the second shell 101 has an air outlet 105 in a fixed direction; considering the connection state between the heat exchanger module 2 and the fan module 1, that is, the fan module 1 is used to guide the heat exchanger module 2, specifically, when the heat exchanger module 2 is in In the preset installation state, the second shell 101 can be detachably connected to any side of the first shell 201, and one of the first installation holes 2011 forms an air inlet, and the air inlet and the air outlet 105 maintain a sealed connection in the same direction; at the same time, the remaining first installation holes 2011 are all in a sealed state that can be opened and closed, and the sealed state that can be opened and closed is achieved by disassembling and assembling the covering in a changing direction. It should be pointed out that the covering of the present application is a blocking structure with a limited number, and the covering is used to block the side of the unnecessary first installation holes 2011.

[0041] In the description of the heat exchanger module 2 in the indoor unit of the air conditioner using the present invention being in a preset installation state, it means that the electronic expansion valve 206 in the heat exchanger module 2 is in a vertically upward installation state (i.e., the aforementioned preset installation state), and when this state is maintained, there is no change in the displacement between the electronic expansion valve 206 and the first shell 201. Exemplarily, without changing the installation state of the heat exchanger module 2, that is, regardless of whether it is installed vertically or horizontally, the electronic expansion valve 206 in the heat exchanger module 2 is always in a vertically upward installation state, and the vertical surface of each side of the heat exchanger module 2 is always in a vertical surface, and will not be tilted from a vertical surface orientation to a flat surface orientation or an inverted orientation; the second shell 101 of the fan module 1 can be detachably connected to any side of the first shell 201 of the heat exchanger module 2, and one of the first installation holes 2011 forms an air inlet, and the air inlet and the air outlet 105 of the second shell 101 always maintain a sealed connection state in the same direction; it should be pointed out that the fan module The second housing 101 of the heat exchanger 201 can be detachably connected to the top surface, bottom surface, left side and right side (the left side and the rear side can be understood as the two sides of the large area of ​​the heat exchange tube where the airflow directly flows), no matter which direction the installation connection state is located, there will be a first installation hole 2011 on one side to form the air inlet of the whole device, and the remaining first installation holes 2011 (the first installation holes 2011 not located between the air outlet 105 and the air inlet) are all in a sealed state that can be opened and closed, so that the remaining first installation holes 2011 can be in an open state when the air inlet direction needs to be changed, and can be in a closed sealed state when the air inlet direction does not need to be changed. In this way, it can be ensured that the heat exchanger module 2 can be kept in a sealed connection installation with the air outlet 105 of the fan module 1 at any time without changing its own installation state (the electronic expansion valve 206 is always in a vertical upward installation state), thereby ensuring the normal operation of the cooling or heating function of the household machine.

[0042] Exemplarily, the openable and closable sealing state is achieved by disassembling and assembling the cover in a changing direction. It should be noted that the cover of the present application is a blocking structure with a limited number of parts, and the cover is used to block the side where the unnecessary first mounting hole 2011 is located. In the process of switching the opening and closing state of the first mounting hole 2011, the cover will not be placed outside the overall device, but will be used as a part of the heat exchanger module to form a circumferential side sealed air duct.

[0043] By adopting the solution of the indoor unit of the air conditioner of the present application, the air outlet of the overall equipment is fixed. As the connection side between the fan module and the heat exchanger module changes, the orientation of the air inlet of the heat exchanger module can be changed, thereby changing the direction of the airflow through the surface of the heat exchange tube. At the same time, as the orientation of the air inlet changes, the orientation of the air duct formed by the circumferential side seal formed by the covering also changes. However, the installation orientation of the electronic expansion valve is always vertically upward, which can adapt to different installation environments and at the same time has a better heat exchange effect.

[0044] Exemplarily, the heat exchanger module 2 can be set as an evaporator module or a condenser module according to the application requirements of the actual scene. When the temperature in the scene is high and needs to be cooled down, the evaporator module is generally used, and the refrigerant absorbs heat by vaporizing through the copper tube of the evaporator module, which can absorb the heat of the air in the scene. When the temperature in the scene is low and needs to be heated up, the condenser module is generally used, and the refrigerant liquefies and releases heat through the copper tube of the condenser module, which can release heat to the air in the scene, thereby increasing the temperature of the air in the scene.

[0045] The present application does not limit the shape and size of the first installation hole 2011 , as long as the first shell 201 can be detachably connected to the second shell 101 and the sealed connection between the first installation hole 2011 and the air outlet 105 is ensured.

[0046] Exemplarily, both the first shell 201 and the second shell 101 adopt a rigid structure, which can ensure the structural stability of the fan module 1 and the heat exchanger module 2 in different installation scenarios, thereby avoiding shaking due to structural instability or forming gaps that introduce too many impurities and reduce energy consumption.

[0047] The normal installation state is that the electronic expansion valve 206 in the heat exchanger module 2 is installed vertically upward, and the heat exchanger module 2 is maintained in such an installation direction.

[0048] Exemplarily, the fan module 1 also includes an air inlet. Generally speaking, the air inlet is located at the front side of the fan, and the air outlet 105 is located at the rear side of the fan. The air outlet 105 here is the aforementioned fixed-direction air outlet 105. The air inlet here is a fixed air inlet belonging to the fan module 1 and arranged opposite to the air outlet 105. It should be pointed out that the detachable connection between the fan module 1 and the heat exchanger module 2 of the present application is realized through the air inlet of the fan module 1. The present application does not limit the shape and size of the air inlet and the air outlet 105, as long as the energy consumption of the fan is not wasted, that is, the edge of the air inlet or the air outlet 105 does not block the air intake and air outlet.

[0049] In the vertical installation scenario, the fan module 1 can be installed on the top surface of the heat exchanger module 2. At this time, the air inlet side of the second shell 101 is detachably connected to the first mounting hole 2011 side of the top surface of the first shell 201, and the air inlet is directly connected to the first mounting hole 2011. At this time, the first mounting hole 2011 on the bottom surface of the first shell is also in an open state. The fan module 1 operates normally, and air enters from the first mounting hole 2011 on the bottom surface of the first shell 201, passes through the heat exchanger module 2, and exchanges heat with the refrigerant copper tube of the heat exchanger module 2, and then is discharged from the air outlet 105 of the fan module 1, thereby realizing the function of cooling or heating.

[0050] In the horizontal installation scenario, the fan module 1 can be installed on the rear side of the heat exchanger module 2. At this time, the air inlet side of the second shell 101 is detachably connected to the first mounting hole 2011 side of the rear side of the first shell 201, and the air inlet is directly connected to the first mounting hole 2011. At this time, the first mounting hole 2011 on the front side of the first shell 201 is also in an open state. The fan module 1 operates normally, and air enters from the first mounting hole 2011 on the front side of the first shell 201, passes through the heat exchanger module 2, and exchanges heat with the refrigerant copper tube of the heat exchanger module 2, and then is discharged from the air outlet 105 of the fan module 1, thereby realizing the function of cooling or heating.

[0051] In this way, without changing the installation state of the heat exchanger module 2, the normal operation of the household machine is ensured by installing the fan module 1 on different sides of the heat exchanger module 2. Taking the fan as a centrifugal fan as an example, the normal operation here means that the fan module 1 is started and the fan rotates. Generally, the fan is set directly opposite the heat exchanger. Since the fan blows away the air in the area, the air pressure in the heat exchanger module 2 is reduced, while the outside remains at atmospheric pressure. Therefore, the air will flow from the high-pressure area to the low-pressure area, that is, the air will flow from the outside of the heat exchanger module 2 into the first shell 201, thereby ensuring the normal heat exchange between the air and the refrigerant. It should be pointed out that when the fan module 1 and the heat exchanger module 2 of the present application are in normal operation, it should be ensured that a limited air duct is formed between the heat exchanger in the heat exchanger module 2 and the air inlet of the fan module 1. In this way, when the fan rotates, it can be ensured that the low-pressure area is formed between the evaporator 204 module and the fan. The specific scheme for limiting the air duct will be explained later.

[0052] The present application does not limit the detachable connection between the first shell 201 and the second shell 101, as long as it can facilitate the installation and disassembly between the two shells. Among them, the detachable connection between the first shell 201 and the second shell 101 is to fix the parts together using screws, splines, wedge pins, etc. This connection method can be disassembled during maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of bolts, keys, and wedge pins) and properly tightened. Exemplarily, the detachable installation between the first shell 201 and the second shell 101 can be achieved by threaded connection or snap connection.

[0053] Taking the threaded connection between the first shell 201 and the second shell 101 as an example, an edge structure is set on one side for connection between the first shell 201 and the second shell 101, and holes are punched on the corresponding edge structure. Bolts or screws are passed through the punched positions and fastened with gaskets and nuts. In this way, a detachable threaded connection between the first shell 201 and the second shell 101 can be achieved.

[0054] Taking the snap-fit ​​connection between the first shell 201 and the second shell 101 as an example, an edge structure is provided on one side for connection between the first shell 201 and the second shell 101, and an outer protrusion structure and an inner protrusion structure are provided on the corresponding edge structure, respectively, and the effect of snap-fit ​​connection is finally achieved through the relative sliding engagement between the outer protrusion structure and the inner protrusion structure. Alternatively, a hole structure is provided on one side of the corresponding edge structure, and a mortise-and-tenon type columnar structure is provided on the other side, and the mortise-and-tenon type columnar structure can pass through the hole structure for hole-shaft matching assembly.

[0055] Considering that the fan module 1 can be detachably connected to any side of the heat exchanger module 2, and at the same time, the normal realization of the cooling or heating function can be ensured, the first shell 201 of the present application also has a baffle 202, which is the aforementioned covering, and the baffle 202 is used to be detachably connected to the side of the first shell 201 that does not require air exchange at the first installation hole 2011, so that air can be prevented from flowing into this side, and the fan can further be prevented from forming the aforementioned low-pressure area. It should be pointed out that the baffle 202 of the present application is mainly used to block the side of the first shell 201 that does not require air exchange. When it is not blocked, even if the fan rotates, air will naturally flow in from the side that does not require air exchange, resulting in the evaporator 204 module and the fan. The low-pressure area cannot be formed, and then the first installation hole 2011 on the front side of the first shell 201 cannot drain air, and it is impossible to ensure that there is enough air to exchange heat with the refrigerant copper pipe of the heat exchanger. At this point, the air conditioner indoor unit of the present application cannot complete the cooling or heating function. Therefore, the setting of the baffle 202 can ensure the formation of a low-pressure area, and for the air conditioner indoor unit composed of the fan module 1 and the heat exchanger module 2, it only has one air inlet and one air outlet 105. Exemplarily, the baffle 202 of the present application has two, and the two first mounting holes 2011 arranged opposite to each other can be detachably connected to a baffle 202, so that, among the two first mounting holes 2011 arranged adjacent to the two baffles 202, one of the first mounting holes 2011 is directly connected to the air inlet of the fan module 1 to form the air outlet 105 of the heat exchanger module 2, wherein the other first mounting hole 2011 serves as the air inlet of the heat exchanger module 2 and also the air inlet of the overall air conditioner indoor unit, and the air outlet 105 of the fan module 1 is also the air outlet 105 of the overall air conditioner indoor unit. In this way, it can be ensured that when the fan is running, there is enough air volume to exchange heat with the refrigerant copper tube, and there will be no temperature fault. In addition, as the orientation of the air inlet of the entire equipment changes, the orientation of the air duct sealed on the circumferential side is also changed through the disassembly and assembly of the baffle 202. However, the installation orientation of the electronic expansion valve is always vertically upward.

[0056] The present application does not limit the shape and size of the baffle 202, as long as it can block the first installation hole 2011 and can be detachably mounted on the first housing 201 at the first installation hole 2011. Exemplarily, the baffle 202 of the present application can be a sheet metal structure or a stamping plate structure with a preset thickness, and the preset thickness can be determined according to product specifications.

[0057] Exemplarily, the first mounting hole position 2011 is constructed as a hole feature, which can be any one of regular shapes such as circular, square, angular, trapezoidal, etc., or the first mounting hole position 2011 can also be any one of irregular shapes. Alternatively, the first mounting hole position 2011 can be a regional hole feature that adapts to the side shape of the first shell 201. Exemplarily, the side of the first shell 201 can be square, and correspondingly, the first mounting hole position 2011 can be a circular hole in the square frame of the side. Exemplarily, the radial dimension of the open surface of the circular hole should be larger than the radial dimension of the outermost edge of the blade in the fan, so that the longitudinal cross-sectional area of ​​the circular hole is larger than the coverage area of ​​the fan blade relative to the longitudinal cross-section, further avoiding unnecessary consumption of the fan kinetic energy.

[0058] Considering that the air inlet of the fan module 1 can be detachably connected with any side of the first shell 201 of the heat exchanger module 2, the first shell 201 of the present application adopts a cubic structure, and the dimensions of each side of the first shell 201 are equal to the dimensions of the side where the air outlet 105 of the second shell 101 is located. In this way, the dimensions of each side of the first shell 201 are the same, and then the first installation hole 2011 of the same shape and size can be formed on any side of the first shell 201. At the same time, it is also conducive to forming the same detachable connection position on any side of the first shell 201. The detachable connection position here includes a hole position, a slot position or a protrusion position formed on any side of the first shell 201. In this way, even if the side is replaced for detachable installation, the position for assembly between the first shell 201 and the second shell 101 remains unchanged, which is convenient for mass production and assembly. Furthermore, the dimensions of each side of the first shell 201 are set equal to the dimensions of the side where the air outlet 105 of the second shell 101 is located. Since the air inlet of the second shell 101 is generally arranged opposite to its own air outlet 105, the dimensions of each side of the first shell 201 are set equal to the dimensions of the side where the air outlet 105 of the second shell 101 is located, that is, the dimensions of each side of the first shell 201 are equal to the dimensions of the side where the air inlet of the second shell 101 is located, which can further facilitate the formation of a limited air duct on the air inlet side of the first shell 201 and the second shell 101. In addition, the size of the first shell 201 will not be wasted, and at the same time, it can also avoid the formation of an air leakage area between the air inlet of the second shell 101 and the first shell 201 due to the side size of the first shell 201 being too small.

[0059] Exemplarily, the first shell 201 of the present application is set as a cubic structure, which can be understood as a standard cubic structure. The frame structure dimensions of each face are the same, and the first mounting hole positions 2011 of each face are set concentrically with the square of each face. Furthermore, the dimensions of the first mounting hole positions 2011 of each face are the same, and the shapes, positions and spacing dimensions of the structural features for detachable connection on the frame structure of each face are the same. This is conducive to quickly realizing the detachable connection between the first shell 201 and the second shell 101.

[0060] Taking the heat exchanger module 2 for cooling function as an example, the heat exchanger module 2 of the present application also includes an evaporator 204, which is obliquely installed on the first shell 201, and a fixed area of ​​the windward channel is formed between the windward side of the evaporator 204 and the air outlet 105 of the second shell 101.

[0061] Among them, the heat exchanger module 2 includes an evaporator 204, and the refrigerant vaporizes and absorbs heat in the copper tube, absorbs the heat of the air, and can reduce the air temperature in the scene, thereby achieving the effect of cooling. Further, the evaporator 204 adopts one, which can make all the incoming air flow through the heat exchange surface of the evaporator 204, which can ensure the cooling effect while not causing the problem of energy waste caused by more evaporators 204. Further, the evaporator 204 is installed obliquely on the first shell 201, because in a limited space, the installation surface of the inclined surface is larger than the area of ​​the longitudinal section or the cross section, which can greatly and effectively utilize the space installation environment, and use the maximum installation cross-sectional size of the inclined surface in the limited installation environment to install the evaporator 204 with the largest heat exchange area in the limited space, so that all the air can flow through the heat exchange surface of the evaporator 204, and avoid the airflow from the evaporator 204 module and the fan module 1 without passing through the heat exchange surface. In addition, a fixed area of ​​the windward channel is formed between the windward side of the evaporator 204 and the air outlet 105 of the second shell 101. In this way, the windward channel in the fixed area can ensure that the air will not flow out from other sides after flowing into the evaporator 204 module, so that it can flow through the fan module 1 and then be discharged to the outside air. For example, the household unit of the present application, based on its similar installation method to that of the central air conditioner, the air discharged through the fan module 1 of the indoor unit of the air conditioner will be discharged to the outside space through the pipeline by the outdoor unit. In this way, the indoor unit of the air conditioner can ensure the effect of cooling the air in the scene.

[0062] Further considering the convenient assembly of the evaporator 204 in a limited space, the evaporator 204 of the present application is constructed as a plate-type evaporator 204, and the heat exchanger module 2 also includes support plates 207 arranged in pairs, each support plate 207 is used to support the windward side or the leeward side of the evaporator 204, so that a windward channel of a fixed area is formed between the windward side or the leeward side and the first mounting hole 2011 on either side.

[0063] For example, the plate evaporator 204 is widely used in the evaporation market because of its advantages such as high heat conduction efficiency, convenient maintenance, and easy expansion. The plate evaporator 204 is mainly composed of: a plate preheater, a plate heat exchanger, a plate condenser, a material pump, a separator, a demister, a steam scrubber, a pipeline, etc., because the heat exchanger in the whole set of equipment is an evaporation device of a plate heat exchanger. This type of evaporator 204 is used in the evaporation process, and the plate is the main heat transfer element. The working principle of the plate evaporator 204 is to achieve the temperature of the material to be evaporated to above the bubble point under the corresponding pressure through heat exchange of the partition wall, produce continuous boiling, and separate into high-concentration liquid and pure saturated water vapor in the gas-liquid separator to achieve the purpose of concentration. The material and steam channels of the plate evaporator 204 are composed of the same plates alternately combined by sealing gaskets or welding, and the assembly forms are detachable, semi-welded and fully welded. The detachable plate evaporator 204 has the advantages of high total heat transfer efficiency, low comprehensive cost, saving precious metal consumption, relatively small footprint, convenient operation and maintenance, and adjustable evaporation area. In addition, the plate evaporator 204 has a high heat transfer coefficient, which makes it easy for the feed liquid to reach a vigorous turbulent state, which is 2 to 3 times the heat transfer coefficient of the tube evaporator 204. The plate evaporator 204 is not easy to be blocked, and the feed liquid forms a disturbed flow on the heat exchange surface, flushing the heat exchanger surface, which can delay the scaling cycle.

[0064] Furthermore, the plate evaporator 204 has a compact structure and a small size. Under the condition of the same evaporation capacity, the space occupied by the plate evaporator 204 is only one-third to one-quarter of the tube evaporator 204, and the height is only one-tenth of the tube evaporator 204. It is very convenient for maintenance, and only the screw of the plate heat exchanger needs to be loosened. The plate heat exchanger is also relatively easy to expand and can adapt to a variety of environments and meet the needs of occasions with limited space.

[0065] Exemplarily, the heat exchanger module 2 of the present application further includes supporting plates 207 arranged in pairs, each supporting plate 207 being used to support the windward side or the leeward side of the evaporator 204, so that a windward passage of a fixed area is formed between the windward side or the leeward side and the first mounting hole 2011 on either side. In this way, the supporting plates 207 can not only support the evaporator 204 and support the evaporator 204 to maintain an inclined installation state in the first housing 201, but also block the area between the evaporator 204 and the first mounting hole 2011 on either side to prevent airflow from flowing into or out of the area and affecting the formation of the aforementioned low-pressure area.

[0066] The support plate 207 of the present application adopts a rigid structure and has a certain hardness characteristic, so that the evaporator 204 can be rigidly supported to prevent it from being out of the tilted installation state. According to different hardness characteristics, the support plate 207 can be in the form of a plate or a sheet. The support plate 207 and the evaporator 204 can be connected in a detachable manner, or the support plate 207 and the evaporator 204 can be connected in an overlapping or piggyback manner. For example, the support plate 207 and the evaporator 204 can also be connected in a snap-on or snap-fit ​​manner.

[0067] When a detachable connection is adopted between the support plate 207 and the evaporator 204, taking a snap-fit ​​installation method as an example, a snap-fit ​​connection structure can be provided on the outer structure of the evaporator 204, and correspondingly, a snap-fit ​​hole structure corresponding to the snap-fit ​​connection structure or a structure that slides and snaps with the snap-fit ​​connection structure is provided on the support plate 207.

[0068] When the support plate 207 and the evaporator 204 are connected in an overlapping or riding manner, the inclined surface of the support plate 207 for supporting the evaporator 204 has a supporting plane adapted to the evaporator 204, and the supporting plane also has a blocking edge, which can prevent the evaporator 204 from escaping from the supporting plane in the horizontal direction.

[0069] Considering the connection mode between the support plate 207 and the bottom surface of the first shell 201, illustratively, the bottom surface of the support plate 207 has raised edges arranged at intervals, and the bottom surface edge of the first shell 201 has slit holes, and the raised edges can be inserted into the slit holes, thereby realizing a snap-fit ​​detachable connection mode between the support plate 207 and the bottom surface of the first shell 201. It should be pointed out here that the bottom surface of the first shell 201 is always a side surface below the evaporator 204, and the installation orientation of the evaporator 204 module has never changed during the installation process and use process.

[0070] Considering the heat exchange process between the air and the refrigerant copper tube of the evaporator 204, liquefaction and heat release will occur, and droplets will be formed and slowly drip downward along the tube wall of the evaporator 204. In order to prevent these droplets from falling to the bottom surface of the first shell 201 to form liquid accumulation, and also to prevent the accumulated liquid from being blown out by the rotation of the fan. The heat exchanger module 2 of the present application also includes a water receiving tray 205, which can be movably mounted on the first shell 201. The water receiving tray 205 is located below the evaporator 204. The water receiving tray 205 has a drainage hole 2051. The bottom surface of the water receiving area of ​​the water receiving tray 205 is tilted, and the drainage hole 2051 is located in a low position area. The heat exchanger module 2 of the present application has a water receiving tray 205. The water receiving tray 205 has a drainage hole 2051. The bottom surface of the water receiving area of ​​the water receiving tray 205 is tilted, and the drainage hole 2051 is located in a low position area. In this way, the droplets dripping from the tube wall of the evaporator 204 can fall into the water collecting area of ​​the water collecting tray 205. Since the bottom surface of the water collecting area of ​​the water collecting tray 205 is inclined and the drainage hole 2051 is located in the low position area of ​​the water-saving area, when the drainage hole 2051 is opened, the water stored in the water collecting area of ​​the water collecting tray 205 can flow along the inclined bottom surface and finally be discharged from the drainage hole 2051.

[0071] The present application does not limit the shape and size of the drain hole 2051, as long as it can adapt to the drainage requirements of the water receiving tray 205. Exemplarily, the drain hole 2051 can be constructed in any of a circular, square, angular, trapezoidal, elliptical, etc. In order to adapt to the function of timely plugging the drain hole 2051, the heat exchanger module 2 of the present application also has a plug, which can be used to plug the drain hole 2051, so that the water receiving tray 205 can store water for a period of time, and the plug can be opened at an appropriate time to discharge the stored water.

[0072] For example, the water receiving tray 205 here can be freely placed on the first housing 201, or the water receiving tray 205 can be installed below the evaporator 204 along the guide channel, and when it needs to be removed, it can be removed along the guide channel in the opposite direction. For example, the guide channel here can be a convex block or a groove, and correspondingly, the bottom surface of the water receiving tray 205 can be provided with a groove or a convex block, and the water receiving tray 205 and the guide channel can be assembled by sliding guides to achieve limited assembly.

[0073] Based on the evaporator 204 of the present application, a plate evaporator 204 is used, which is installed tilted in one direction. Based on this, the water receiving tray 205 of the present application can be constructed as a U-shaped structure. The U-shaped structure here can be understood as a U-shaped water receiving area, that is, the U-shaped water receiving area corresponds to the three sides where droplets can drip after the plate evaporator 204 is installed tilted. In this way, the waste of the water receiving area can be avoided. At the same time, the water receiving tray 205 as a whole constitutes a U-shaped structure, which can leave a channel for air flow on the bottom surface of the first shell 201, and then when it is adapted to be installed vertically, air can flow in from the bottom of the water receiving tray 205. At the same time, the U-shaped structure can just block the airflow on the side, so as to prevent the airflow from affecting the water storage in the U-shaped water-saving area and preventing the stored water from splashing out of the water receiving tray 205.

[0074] Exemplarily, the water receiving tray 205 may be made of plastic material, which can prevent the water stored in the water receiving tray 205 from rusting.

[0075] Considering that the water receiving pan 205 is arranged on the bottom surface of the first shell 201, considering that it is installed in a scene together with the evaporator 204 module and the fan module 1, and generally, the indoor unit of the household machine is buried in the indoor ceiling, it is not convenient to directly disassemble the water receiving pan 205 to dump the stored water. In order to facilitate the discharge of stored water, the water receiving pan 205 of the present application may include three sections of sequentially connected water receiving areas, and the bottom surface of each water receiving area is inclined. Exemplarily, the bottom surface of each water-saving area in the three sections of sequentially connected water receiving areas is inclined, which can be understood as two types, one is that each section is an inclined bottom surface, and the water receiving areas of the adjacent two sections form a stepped surface at the bottom connection, so that the water storage space of the water receiving area can be increased, and only the water stored above the highest position of the stepped surface will flow in the water receiving pan 205, and finally discharged from the drainage hole 2051, and the water stored in the water receiving pan 205 can evaporate for a long time, and the air humidity can be appropriately increased. The other is that each section has an inclined bottom surface, and the inclined bottom surfaces at both adjacent ends are smoothly connected, so that the three water receiving areas smoothly form a continuous inclined drainage channel with a corner and finally inclined downward. In this way, all the water stored in the water receiving tray 205 can be drained in one drainage process.

[0076] The structure of the water receiving tray 205 of the present application is further described below by taking the water receiving tray 205 using a smooth drainage channel as an example.

[0077] In the water receiving tray 205 provided by the present application, based on the aforementioned U-shaped structure, the bottom surface of each water receiving area has different heights at different inflection points, so that each water receiving area forms a different inclined channel, and the drainage hole 2051 of the water receiving tray 205 is located at the downstream position of each inclined channel. In this way, due to the different positions of the drainage hole 2051 in the water receiving tray 205, as the distances of the different inflection points of the bottom surface of each water receiving area relative to the drainage hole 2051 are close, it can be understood that the farther the position from the drainage hole 2051 is, the higher the height of the corresponding viewpoint position is, so that the stored water flows from the top and bottom relative to the drainage hole 2051, and the stored water can be discharged quickly.

[0078] Considering the installation scenario of the indoor unit of a household machine, there may be only one side that is convenient for users or maintenance personnel to operate. Therefore, the present application has one drainage hole 2051. In this way, the one drainage hole 2051 can be set on one side of the air grille in the ceiling. The drainage hole 2051 can be opened by opening the air grille, or a drainage pipe can be connected to the drainage hole 2051, and the drainage pipe can directly lead the stored water to the outside.

[0079] In summary, the indoor unit of the air conditioner of the household type machine of the present application can be detachably installed on any side of the heat exchanger module 2. It should be pointed out that there are only two baffles 202 of the present application. When the vertical installation method is adopted, the baffles 202 can be used to block the first installation holes 2011 on both sides for detachable connection. When the horizontal installation method is adopted, the baffles 202 can be used to block the first installation holes 2011 on the top and bottom surfaces for detachable connection. From the beginning to the end, it can be ensured that the installation orientation of the electronic expansion valve 206 in the heat exchanger module 2 is always vertically upward, thereby improving the service life of the indoor unit of the air conditioner of the present application. Specifically, the fan module 1 includes a second housing 101, a centrifugal fan 102, a motor 103, an electrical box component 104, an air duct, etc., and the heat exchanger module 2 is assembled from an evaporator 204, a water receiving tray 205, a first housing 201, a connecting pipe assembly 203, an electronic expansion valve 206, a baffle 202, etc. The present application adopts a straight plate evaporator 204, and the electronic expansion valve 206 and the connecting pipe components 203 such as the liquid distribution pipe and the gas collecting pipe are designed in the space on the side of the evaporator 204, and the electronic expansion valve 206 is placed vertically. In the default state, the fan module 1 is on the upper part of the heat exchanger module 2, and the air enters from the bottom and the air is discharged from the upper part, that is, the vertical installation state. The U-shaped water receiving tray 205 of the present application surrounds the bottom of the evaporator 204 and can completely collect condensed water. The internal plane of the water receiving tray 205 is tilted to a corner for easy drainage. In addition, only two panels in the heat exchanger module 2 are provided with a detachable baffle 202. When switching the air outlet mode, such as horizontal installation, it is only necessary to remove the baffle 202 on the side of the heat exchanger module 2, and rotate the fan module 1 to connect with the side of the heat exchanger module 2 to realize the side return air. At this time, the heat exchanger module 2 remains unchanged, ensuring that the electronic expansion valve 206 always remains vertically upward. When switching to the bottom air outlet mode, open the top and bottom baffles 202 of the heat exchanger module 2, and seal the left and right sides with the two baffles 202, rotate the fan module 1 and install it at the bottom, and the heat exchanger module 2 does not need to change direction.

[0080] Considering the actual installation scenario of the indoor unit of the air conditioner, the installation space reserved for the household air conditioner by the user during installation is uncertain. The installation direction can be flexibly adjusted according to the actual situation. Most of the existing products are V-shaped or M-shaped evaporators 204, and the principles are basically the same. The present application adopts a straight plate evaporator 204, which can have two more directions of air intake and return. The positions for detachable connection are actually the top surface, bottom surface, left side and right side of the first shell 201. The top surface and bottom surface are two positions that are intuitively visible in the default state. The left and right sides are equipped with detachable panels (i.e. baffles 202). When it is needed, the panels (i.e. baffles 202) are removed first, and then the first shell 201 and the second shell 101 are detachably connected at this side position, that is, spliced. The baffle 202 here is a common structure for each side surface of the first shell 201 (that is, the four sides of the top, bottom, left and right sides). The inner bottom surface of the water receiving tray 205 of the present application is designed with an inclined angle, and the drain outlet is located at the lowest point to facilitate the discharge of condensed water. Regardless of which installation direction is switched, the installation direction of the evaporator 204 component and the water receiving tray 205 is always kept the same, and the inclination angle designed in the water receiving tray 205 only needs to be inclined in one direction, and there is no need to add an additional auxiliary water receiving tray 205.

[0081] The present invention also provides an air conditioner, which includes the aforementioned air conditioner indoor unit, which is generally used for duct-type air conditioner indoor units, also known as household units, which generally include two parts: a heat exchanger module 2 and a fan module 1. In order to enable the household unit to flexibly adapt to both vertical and horizontal application scenarios, in the air conditioner indoor unit provided by this solution, the heat exchanger module 2 includes a first shell 201, and each side of the first shell 201 has a first mounting hole 2011; the fan module 1 includes a second shell 101, and the second shell 101 has an air outlet 105 in a fixed direction; the second shell 101 can be detachably connected to any side of the first shell 201, and one of the first mounting holes 2011 forms an air inlet, and the air inlet and the air outlet 105 maintain a sealed connection in the same direction; at the same time, the remaining first mounting holes 2011 are all in a sealed state that can be opened and closed.

[0082] It should be pointed out that in the present application, the installation direction of the heat exchanger module 2 and the structural components therein remain unchanged, that is, the electronic expansion valve 206 in the heat exchanger module 2 is always in a vertically upward installation state, and will not change due to the change in the position of the detachable connection between the first shell 201 and the second shell 101. In this way, without changing the installation orientation of the heat exchanger module 2 (that is, the electronic expansion valve 206 in the heat exchanger module 2 is always in a vertically upward installation state), the second shell 101 of the fan module 1 can be detachably connected to any side of the first shell 201 of the heat exchanger module 2. At the same time, the first installation hole 2011 on one side of the first shell 201 constitutes the air inlet of the overall device, and the air inlet maintains a sealed connection with the air outlet 105 of the second shell 101 in the same direction. For example, the directions of the air inlet and the air outlet 105 are in the same straight line. It can also be understood that the airflow entering the first shell 201 (heat exchanger module 2) through the air inlet The air can be discharged directly through the air outlet of the second shell 101 (fan module 1) without turning, thereby ensuring that the heat exchanger module 2 does not change its own installation direction, that is, regardless of whether it is installed vertically or horizontally, the electronic expansion valve 206 in the heat exchanger module 2 is always in a vertically upward installation state, and the vertical surface of each side of the heat exchanger module 2 is always in a vertical surface, and will not be tilted from a vertical surface orientation to a flat orientation or an inverted orientation; the heat exchanger module 2 can be installed in a sealed and connected manner with the air outlet 105 of the fan module 1 in the same direction at all times, thereby ensuring the normal operation of the cooling or heating function of the household machine, and the electronic expansion valve 206 will not be installed horizontally or inverted.

[0083] Furthermore, the air conditioner of the present application is a household unit, which includes not only the aforementioned indoor unit of the air conditioner, but also an outdoor unit of the air conditioner. The heat exchange between the indoor unit of the air conditioner and the outdoor unit of the air conditioner is achieved by transmitting refrigerant through copper tubes.

[0084] The following is a supplementary description of the actual installation scenarios of the indoor and outdoor units.

[0085] Take the outdoor unit as an example. It is generally installed on the outer wall of the building and needs to be installed in a well-ventilated location. For example, avoid installing it in a narrow ventilation shaft or a corner blocked by other objects. Because the outdoor unit needs to dissipate heat to the surrounding air through a fan during operation, if the ventilation is not smooth, it will lead to poor heat dissipation and affect the cooling and heating efficiency of the air conditioner. Ideally, there should be at least 0.5-1 meter of space around the outdoor unit without obstacles to ensure that the air can circulate freely. At the same time, it is necessary to consider avoiding direct sunlight. Although the outdoor unit has a certain sun protection design, long-term exposure to strong sunlight will increase the temperature of the outdoor unit casing and increase the workload of the compressor. Therefore, it is usually chosen to be installed on the north side of the building or in a location with sunshade facilities. In addition, attention should be paid to waterproofing. The outdoor unit should be installed at a certain distance above the ground. Usually, the bottom of the mounting bracket is at least 2.5 meters from the ground to prevent it from being soaked in water during heavy rain. Because there are electrical components inside the outdoor unit, once water enters, it may cause short circuit and other faults. It is common to use a special mounting bracket to fix the outdoor unit to the wall. The material of the mounting bracket is generally stainless steel or rust-proof metal to ensure sufficient strength and durability. During installation, make sure that the bracket is firmly fixed to the load-bearing structure of the wall, such as a concrete wall or a brick wall with sufficient strength. For some old buildings or those with weak wall structures, special reinforcement measures may be required. In some special cases, such as when there is no suitable exterior wall installation location, the outdoor unit can also be installed on the roof platform. However, it is necessary to take measures to prevent wind, rain and sun, and ensure that the installation location will not affect the roof drainage system.

[0086] Taking the indoor unit as an example, its installation position is generally determined according to the layout and use function of the room. It is generally installed above the room. For example, the bedroom is usually installed near the ceiling above the head of the bed or at a higher position on the wall. This is because the cold air sinks and the hot air rises. Installing the indoor unit at a higher position can make the cold air circulate better in the room and achieve a more uniform cooling effect. Avoid installing it near heat sources, such as stoves, heaters, etc. To prevent the indoor unit from inhaling hot air and affecting the cooling effect of the air conditioner. At the same time, it cannot be installed in places where water vapor is often generated, such as bathrooms or near kitchen sinks, because there are electronic components inside the indoor unit, which may be damaged by moisture. For some rooms with special requirements, such as machine rooms or laboratories with high requirements for temperature control accuracy, the installation position of the indoor unit may need to be determined according to the layout and heat dissipation requirements of the equipment. It is usually necessary to ensure that the air outlet 105 of the air conditioner can blow directly to the heating equipment to achieve effective cooling. Wall-mounted indoor units are one of the most common installation methods. The indoor unit is hung on the hanging board by installing a hanging board on the wall. When installing the hanging board, make sure that the hanging board is level and firmly fixed to the wall, and use appropriate expansion bolts and other fixings. The installation height is generally about 2-2.5 meters from the ground, which is convenient for operation and can ensure good air outlet effect. For some large indoor spaces or commercial places, embedded indoor units or ducted indoor units may be used. The embedded indoor unit is installed in the ceiling of the ceiling, and it is necessary to reserve suitable installation space and the position of the air outlet 105 and the return air outlet during the decoration stage. The ducted indoor unit transports hot and cold air to each room through the air duct. During installation, pay attention to the layout and sealing of the air duct to prevent air leakage from affecting the air conditioning effect.

[0087] The indoor unit of the air conditioner of the present application, combined with the outdoor unit application, can be adapted to different installation scenarios, and can also ensure that the electronic expansion valve 206 is always installed in a vertically upward state, which can increase the service life of the entire air conditioner. In addition, the use of a plate evaporator 204 and a corresponding U-shaped water tray 205 structure can collect the droplets flowing out of the surface of the evaporator 204, and can also facilitate discharge through the drainage hole 2051 in a small space. It can also ensure that the airflow can also flow in from the bottom of the heat exchanger, and the U-shaped structure of the water tray 205 can reserve enough space for the airflow to pass through, and the overall structure can improve the energy consumption ratio of the evaporator 204.

[0088] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0089] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0090] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An air conditioner indoor unit, characterized in that: The air conditioner indoor unit includes a heat exchanger module and a fan module; The heat exchanger module comprises a first shell, an electronic expansion valve is installed in the first shell, and the top surface, bottom surface, left side and right side of the first shell are all provided with first installation holes; The fan module comprises a second housing, wherein the second housing has an air outlet with a fixed direction; When the heat exchanger module is in a preset installation state, the second shell can be detachably connected to the top surface or the bottom surface or the left side or the right side of the first shell, one of the first installation holes forms an air inlet, and the air inlet and the air outlet maintain sealed communication in the same direction; At the same time, the remaining first installation holes are all in an openable and closable sealed state, and the openable and closable sealed state is achieved by disassembling and assembling the two covers in changing directions, so as to form a circumferentially sealed air duct; When the vertical installation is adopted, the second shell is detachably connected to the top surface or the bottom surface of the first shell, and the two covers are detachably connected to the left and right sides of the first shell respectively, so as to block the first installation holes on the left and right sides of the first shell; When the horizontal installation is adopted, the second shell is detachably connected to the left side or the right side of the first shell, one of the covers is detachably connected to the right side or the left side of the first shell to block the corresponding first installation hole, and the other cover is detachably connected to the top surface of the first shell to block the corresponding first installation hole; In both installation states of the vertical installation mode and the horizontal installation mode, each vertical surface of the first shell is always in a vertical state, and the electronic expansion valve always maintains a vertically upward installation state.

2. The air conditioner indoor unit according to claim 1, characterized in that: The first shell further has a baffle, which is the covering, and the two first mounting holes arranged opposite to each other can be detachably connected to one of the baffles.

3. The air conditioner indoor unit according to claim 1, characterized in that: The first shell adopts a cubic structure, and the dimensions of each side surface of the first shell are equal to the dimensions of the side surface of the second shell where the air outlet is located.

4. The air conditioner indoor unit according to claim 1, characterized in that: The heat exchanger module further includes an evaporator, which is obliquely mounted on the first shell, and a windward channel of a fixed area is formed between the windward side or the leeward side of the evaporator and the air outlet of the second shell.

5. The air conditioner indoor unit according to claim 4, characterized in that: The evaporator is constructed as a plate-type evaporator, and the heat exchanger module further includes support plates arranged in pairs, each of which is used to support the windward side of the evaporator so as to form the windward channel in a fixed area between the windward side and the first mounting hole on either side.

6. The air conditioner indoor unit according to claim 4, characterized in that: The heat exchanger module also includes a water receiving pan, which is movably mounted on the first shell and located below the evaporator. The water receiving pan has a drainage hole, and the bottom surface of the water receiving area of ​​the water receiving pan is inclined, and the drainage hole is located in a low position area.

7. The air conditioner indoor unit according to claim 6, characterized in that: The water receiving tray is constructed as a U-shaped structure.

8. The air conditioner indoor unit according to claim 7, characterized in that: The water receiving tray comprises three water receiving areas which are connected in sequence, and the bottom surface of each water receiving area is inclined.

9. The air conditioner indoor unit according to claim 8, characterized in that: The bottom surface of each water receiving area has different heights at different inflection points, so that each water receiving area forms a different inclined channel, and the drainage hole of the water receiving tray is located at the downstream position of each inclined channel.

10. The air conditioner indoor unit according to claim 9, characterized in that: The drainage hole has one.

11. A household air conditioner, characterized in that: It comprises an air conditioner indoor unit as claimed in any one of claims 1 to 10.

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