Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit which comprises a machine shell, and an air inlet and an air outlet are formed in the machine shell. A fan assembly; the fan assembly is used for leading airflow outside the machine shell into the machine shell through the air inlet, and the airflow is output outwards through the air outlet after being subjected to heat exchange through the indoor heat exchanger. The protective net is arranged at the air outlet and connected with the machine shell, and the protective net is used for shielding the fan assembly; a positioning hole is formed in the bottom of the air outlet; the protective net comprises a protective net body, and the protective net body is arranged at the air outlet. The positioning part is connected to the bottom of the protective net body, the positioning part is in positioning fit with the positioning hole, and during installation, the positioning part can rotate in the positioning hole; the top of the air outlet is provided with a clamping part, and the clamping part is matched with the top of the protective net body in a clamping mode. Therefore, by arranging the air conditioner indoor unit, the safety performance of the air conditioner indoor unit can be improved, and the assembly efficiency of the protective net can also be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field especially is related to a kind of air conditioner indoor unit. BACKGROUND

[0002] Wall-mounted air conditioner is usually composed of indoor unit and outdoor unit, outdoor unit is usually installed in outdoor outer wall, balcony, roof and other positions, indoor unit is usually installed on indoor wall, indoor unit inhales air through heat exchange inlet on casing, air is released to indoor after heat exchange by indoor heat exchanger through heat exchange outlet.

[0003] In related art, indoor unit heat exchange outlet of wall-mounted air conditioner is not provided with protection piece, if user accidentally touches high-speed running fan with hand, it can cause personal injury, now some air conditioner hanging machine outlet is designed with protection net to protect fan, to prevent user from touching fan.But, the protection net of the present part is fixed to the outlet of the air conditioner hanging machine by screw, and the other part is additionally provided with plastic piece at both ends of the wire mesh, and then the plastic piece is fixed to the outlet of the air conditioner hanging machine, both of the two fixing forms of the wire mesh have the disadvantages of low assembly efficiency and high cost due to additional parts (such as screws or plastic pieces). SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one object of the utility model is to provide an air conditioner indoor unit, which can improve its safety performance and the assembly efficiency of the protection net.

[0005] According to the air conditioner indoor unit of the utility model, the air conditioner indoor unit comprises a casing, an air inlet and an air outlet are arranged on the casing, a fan assembly is arranged in the casing, an indoor heat exchanger is arranged in the casing, the fan assembly is used to introduce airflow outside the casing into the casing through the air inlet and output the airflow outside through the air outlet after heat exchange by the indoor heat exchanger, a protection net is arranged at the air outlet and connected with the casing, and the protection net is used to shield the fan assembly, a positioning hole is arranged at the bottom of the air outlet, the protection net comprises a protection net body arranged at the air outlet and a positioning part connected with the bottom of the protection net body, the positioning part is positioned with the positioning hole, the positioning part is rotatable in the positioning hole during installation, and a clamping part is arranged at the top of the air outlet and clamped with the top of the protection net body.

[0006] Therefore, by arranging the air conditioner indoor unit, the safety performance thereof can be improved, and the assembly efficiency of the protection net can be improved.

[0007] In some examples of the utility model, the clamping part comprises: a first elastic arm, the upper end of the first elastic arm is connected to the top of the air outlet, a second elastic arm, the upper end of the second elastic arm is connected to the top of the air outlet, the second elastic arm is located behind the first elastic arm, the lower end of the first elastic arm and the lower end of the second elastic arm jointly define a clamping groove, and the clamping groove is clamped and matched with the top of the protective net body.

[0008] In some examples of the utility model, the clamping groove has an opening, and the width of the opening increases in the direction away from the clamping groove.

[0009] In some examples of the utility model, the lower end of the first elastic arm is configured as a first arc-shaped end, the lower end of the second elastic arm is configured as a second arc-shaped end, the first arc-shaped end is located below and behind the second arc-shaped end, and the first arc-shaped end and the second arc-shaped end are arranged with a common center.

[0010] In some examples of the utility model, the protective net body comprises: a plurality of horizontal rods, the plurality of horizontal rods are vertically spaced, a plurality of vertical rods, the plurality of vertical rods are horizontally spaced and connected with the plurality of horizontal rods, wherein the clamping part is clamped and matched with the uppermost horizontal rod, and the positioning part is connected below the lowermost horizontal rod or any vertical rod.

[0011] In some examples of the utility model, the positioning part comprises: a positioning vertical rod, the positioning vertical rod is integrally formed with any vertical rod, and a positioning horizontal rod, the horizontal rod is crossly arranged with the positioning vertical rod, and the positioning horizontal rod abuts against the bottom of the air outlet.

[0012] In some examples of the utility model, the indoor unit of the air conditioner further comprises: a support connected between the top and the bottom of the air outlet, a linkage rod movably arranged on the support, a plurality of guide vanes arranged on the linkage rod and spaced in the length direction of the linkage rod, and a limiting groove is arranged on the support and is in limiting cooperation with the top of the protective net body.

[0013] In some examples of the utility model, the support is provided with a support arm protruding forward, the linkage rod is movably arranged on the support arm, the protective net body is provided with an avoiding opening, and the support arm passes through the avoiding opening.

[0014] In some examples of the utility model, the protective net body includes: multiple horizontal rods, multiple the horizontal rods are spaced apart in vertical direction, at least two the horizontal rods located in the middle are provided with notches to jointly form the avoiding opening, connecting rods, the connecting rods extend along vertical direction and are located at least one side of the avoiding opening in horizontal direction, at least two the horizontal rods located in the middle and the horizontal rods located below are connected with the connecting rods respectively, and the connecting rods and the uppermost horizontal rod form a break.

[0015] According to the indoor unit of the air conditioner of the second aspect of the utility model, the indoor unit comprises: a shell, an air inlet and an air outlet are arranged on the shell; a fan assembly is arranged in the shell; an indoor heat exchanger is arranged in the shell, the fan assembly is used for introducing airflow outside the shell into the shell through the air inlet and outputting the airflow outside through the air outlet after heat exchange by the indoor heat exchanger; a protective net is arranged at the air outlet and connected with the shell, and the protective net is used for shielding the fan assembly; a first clamping part is arranged at the top of the air outlet, a first plug-in part is arranged at the bottom of the air outlet, a second clamping part is arranged at the top of the protective net, and a second plug-in part is arranged at the bottom of the protective net, the first clamping part is clamped and matched with the second clamping part, and the first plug-in part is plug-in matched with the second plug-in part.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0018] Figure 1 is a structural schematic view of the indoor unit of the air conditioner according to the embodiment of the utility model;

[0019] Figure 2 is Figure 1 is an enlarged view of area A in figure 1;

[0020] Figure 3 is Figure 1 is an enlarged view of area B in figure 2;

[0021] Figure 4 is a structural schematic view of the indoor unit of the air conditioner according to another embodiment of the utility model;

[0022] Figure 5 is Figure 4 is an enlarged view of area C in figure 3;

[0023] Figure 6 isFigure 4 An enlarged view of the middle D region;

[0024] Figure 7 Another structural schematic view of the air conditioner indoor unit according to an embodiment of the present application;

[0025] Figure 8 Figure 7 An enlarged view of the middle E region;

[0026] Figure 9 A front view of the air conditioner indoor unit according to an embodiment of the present application;

[0027] Figure 10 Figure 9 A sectional view along the F-F direction.

[0028] Reference signs:

[0029] 100, air conditioner indoor unit;

[0030] 1, housing; 11, air inlet; 12, air outlet; 121, positioning hole; 122, clamping portion; 1221, first elastic arm; 1222, second elastic arm; 1223, clamping groove; 1224, opening;

[0031] 2, protective net; 21, protective net body; 211, horizontal rod; 2111, notch; 212, vertical rod; 213, avoiding opening; 214, connecting rod; 215, break; 22, positioning portion; 221, positioning vertical rod; 222, positioning horizontal rod;

[0032] 3, support; 31, limiting groove; 32, support arm. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and the embodiments described with reference to the drawings are exemplary, and the embodiments of the present application are described in detail below.

[0034] Reference is made below Figures 1-10 The air conditioner indoor unit 100 according to the embodiment of the present application is described, which can improve the safety performance of itself, and can also improve the assembly efficiency of the protective net 2.

[0035] In combination Figures 1-10 As shown in the drawings, the air conditioner indoor unit 100 according to the first aspect embodiment of the present application comprises a housing 1, a fan assembly, an indoor heat exchanger and a protective net 2.

[0036] ​​The air conditioner indoor unit 100 and the air conditioner outdoor unit are connected by a pipeline to transmit refrigerant. The air conditioner indoor unit 100 comprises an indoor heat exchanger and a fan assembly (e.g. a heat exchange fan). The air conditioner outdoor unit comprises a compressor, a four-way valve, an outdoor heat exchanger, an outdoor fan, and an expansion valve. The compressor, the outdoor heat exchanger, the expansion valve, and the indoor heat exchanger are sequentially connected to form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit. The outdoor heat exchanger and the indoor heat exchanger exchange heat with air, respectively, to realize a cooling mode or a heating mode of the air conditioner.

[0037] The expansion valve is connected between the outdoor heat exchanger and the indoor heat exchanger. The opening degree of the expansion valve is adjusted to regulate the pressure of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger, so as to regulate the flow rate of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger. The flow rate and the pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger. The expansion valve can be an electronic valve. The opening degree of the expansion valve is adjustable to control the flow rate and the pressure of the refrigerant flowing through the expansion valve.

[0038] The outdoor heat exchanger is configured to exchange heat between outdoor air and the refrigerant transmitted in the outdoor heat exchanger. For example, the outdoor heat exchanger works as a condenser in the cooling mode of the air conditioner, so that the refrigerant compressed by the compressor is condensed by emitting heat to the outdoor air through the outdoor heat exchanger. The outdoor heat exchanger works as an evaporator in the heating mode of the air conditioner, so that the refrigerant after pressure reduction is evaporated by absorbing heat of the outdoor air through the outdoor heat exchanger.

[0039] In some embodiments, the outdoor heat exchanger further comprises heat exchange fins to expand the contact area between the outdoor air and the refrigerant transmitted in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0040] The air conditioner further comprises a control device. The control device is configured to control the operating frequency of the compressor, the opening degree of the expansion valve, the rotating speed of the outdoor fan, and the rotating speed of the indoor fan. The control device is connected to the compressor, the expansion valve, the outdoor fan, and the indoor fan assembly through a data line to transmit communication information.

[0041] The protective net 2 arranged at the air outlet 12 can effectively prevent foreign matters from entering the inside of the casing 1, help maintain the cleanliness of the inside of the casing 1, protect the internal structure of the casing 1 from being collided, reduce the influence of foreign matters on the air conditioner indoor unit 100, prolong the service life of the air conditioner indoor unit 100, and prevent the user from mistakenly putting fingers or other objects into the air outlet 12 of the air conditioner, thereby avoiding the user from being hurt by mistakenly touching the rotating fan assembly in the casing 1. For example, the protective net 2 can be a wire mesh.

[0042] Specifically, in combination with Figure 1 , Figure 7 and Figure 10As shown, the casing 1 is provided with an air inlet 11 and an air outlet 12, and a fan assembly is arranged in the casing 1, and an indoor heat exchanger is arranged in the casing 1, the fan assembly is used to introduce the airflow outside the casing 1 into the casing 1 through the air inlet 11, and the airflow is outputted outside through the air outlet 12 after heat exchange by the indoor heat exchanger.

[0043] Specifically, the airflow flows through the air inlet 11 and the air outlet 12 on the casing 1, to realize the air circulation between the indoor airflow and the air conditioner indoor unit 100, the fan assembly can drive the external airflow to enter the air conditioner indoor unit 100 from the air inlet 11, the indoor heat exchanger exchanges heat with the external airflow entering from the air inlet 11, and the heat exchange airflow is blown to the indoor environment from the air outlet 12 under the driving of the fan assembly, so as to achieve the effect of adjusting the indoor temperature.

[0044] Wherein, the air inlet 11 is located on the upper side of the casing 1, and the air outlet 12 is arranged below the front side of the casing 1, the indoor heat exchanger can be a V-shaped heat exchanger, a straight plate heat exchanger, etc., and the fan assembly is provided with an indoor fan, which can be a cross-flow fan.

[0045] During the heat exchange process of the indoor heat exchanger, the operation of the fan assembly can increase the wind speed and the air volume, thereby increasing the heat transfer efficiency between the airflow and the indoor heat exchanger, and the user experience is better.

[0046] Further, as shown in Figure 1 and Figure 10 , the protective net 2 is arranged at the air outlet 12, and the protective net 2 is connected with the casing 1, the protective net 2 is used to shield the fan assembly, and the casing 1 can provide a stable mounting carrier for the protective net 2, thereby improving the mounting stability of the protective net 2. Wherein, the protective net 2 will not affect the flow effect of the heat exchange airflow at the air outlet 12, and can also block foreign matters from entering the inside of the casing 1 through the air outlet 12, thereby improving the practicability and safety.

[0047] For example, the protective net 2 can prevent the user from accidentally touching the high-speed running graded assembly in the casing 1 through the air outlet 12 by stretching fingers, thereby improving the use safety of the air conditioner.

[0048] Further, as shown in Figure 1 , Figure 3 and Figure 6 , the bottom of the air outlet 12 is provided with a positioning hole 121, the protective net 2 includes a protective net body 21 and a positioning part 22, the protective net body 21 is arranged at the air outlet 12, the positioning part 22 is connected to the bottom of the protective net body 21, the positioning part 22 is positioned with the positioning hole 121, and the positioning part 22 is rotatable in the positioning hole 121 during installation.

[0049] For example, the protective screen body 21 can be composed of multiple protective rods in the left-right direction and the up-down direction, so that the heat exchange airflow can smoothly pass through the air outlet 12, the protective screen 2 composed of multiple protective rods is simple in structure, is convenient for the user to clean, can improve the appearance aesthetics of the equipment to some extent, and makes the appearance of the equipment more neat and orderly.

[0050] The positioning portion 22 of the protective screen 2 is connected to the bottom of the protective screen body 21, so as to facilitate the positioning portion 22 to establish a positioning cooperation relationship with the positioning hole 121 at the bottom of the air outlet 12, thereby providing a positioning effect for the installation process of the protective screen 2 on the air outlet 12, and enabling the lower end of the protective screen 2 to be connected to the shell 1.

[0051] In addition, the top of the air outlet 12 is provided with a clamping portion 122, and the clamping portion 122 is clamped and cooperated with the top of the protective screen body 21.

[0052] It can be understood that the top of the protective screen body 21 can be clamped and cooperated with the clamping portion 122 at the top of the air outlet 12, so as to connect the upper end of the protective screen 2 to the shell 1 as a whole.

[0053] In summary, in combination with Figure 10 As shown in the drawings, in the installation process of the protective screen 2, the operator first cooperates the positioning portion 22 at the lower end of the protective screen 2 with the positioning hole 121, and then rotates the top of the protective screen body 21 to the clamping portion 122 at the top of the air outlet 12 around the positioning hole 121, and then clamps the top of the protective screen body 21 in the clamping portion 122. Compared with the installation structure form of the traditional additional parts (such as screws or plastic parts, one is to fix the protective screen to the air outlet by screws, and the other is to additionally fix the plastic parts at both ends of the wire mesh, and then fix the plastic parts to the air outlet), the embodiment can effectively improve the assembly efficiency of the protective screen 2, and can also reduce the manufacturing cost.

[0054] In addition, the clamping connection structure is simple, reliable in connection, has the functions of quick and convenient disassembly and installation, and can effectively reduce the time and cost required for maintenance and replacement of the protective screen 2.

[0055] Therefore, by setting the air conditioner indoor unit 100, the safety performance can be improved, and the assembly efficiency of the protective screen 2 can be improved.

[0056] According to some optional embodiments of the utility model, in combination with Figure 1 , Figure 8 and Figure 10As shown, the clamping portion 122 includes a first elastic arm 1221 and a second elastic arm 1222, the upper end of the first elastic arm 1221 is connected to the top of the air outlet 12, the upper end of the second elastic arm 1222 is connected to the top of the air outlet 12, the second elastic arm 1222 is located behind the first elastic arm 1221, and the lower end of the first elastic arm 1221 and the lower end of the second elastic arm 1222 jointly define a clamping groove 1223 that is clamped and matched with the top of the protective net body 21.

[0057] Wherein, the lower end of the first elastic arm 1221 and the second elastic arm 1222 jointly define a clamping groove 1223 that is clamped and matched with the top of the protective net body 21, and the upper end of both is connected to the top of the air outlet 12, so as to provide stable support effect for the clamping groove 1223, and the first elastic arm 1221 and the second elastic arm 1222 are arranged in the front and rear directions, so as to facilitate the protective net body 21 to be clamped into the clamping groove 1223 when the top of the protective net body 21 is rotated from front to back to the clamping groove 1223 under the action of external force, and improve the speed of clamping process.

[0058] Specifically, in combination with Figure 8 As shown, the clamping groove 1223 has an opening 1224, and the width of the opening 1224 increases in the direction away from the clamping groove 1223.

[0059] It can be understood that the width of the opening 1224 on the side away from the clamping groove 1223 is larger, so as to facilitate the protective net body 21 to be more easily matched into the opening 1224 in advance, thereby playing a mounting guiding effect; and the width of the opening 1224 on the side close to the clamping groove 1223 is smaller, and the extrusion force of the opening 1224 on the protective net body 21 gradually increases in the process of the protective net body 21 approaching the clamping groove 1223, so the force applied by the operator to the protective net body 21 is also getting bigger and bigger, so as to reduce the risk of the protective net body 21 being mistakenly detached after being clamped into the clamping groove 1223, thereby improving the clamping stability and reliability between the clamping groove 1223 and the protective net body 21.

[0060] Further, in combination with Figure 8 As shown, the lower end of the first elastic arm 1221 is configured as a first arc-shaped end, and the lower end of the second elastic arm 1222 is configured as a second arc-shaped end.

[0061] Wherein, the lower end of the first elastic arm 1221 and the second elastic arm 1222 are both configured in a circular arc shape, so as to facilitate uniform transition of the connection stress between the protective net body 21, avoid local stress concentration, improve the contour adaptation, also can improve the stress contact area between the clamping groove 1223 and the protective net body 21, improve the stress uniformity between them, prolong the service life.

[0062] Further, the first arc-shaped end is located below and behind the second arc-shaped end, and the first arc-shaped end and the second arc-shaped end are arranged with a common center.

[0063] It can be understood that, when the protective net body 21 is clamped into the clamping groove 1223, the first arc-shaped section can provide an upward force on the protective net body 21, preventing the protective net body 21 from falling out of the clamping groove 1223 due to its own gravity, thereby improving the clamping stability; the first arc-shaped end and the second arc-shaped end are arranged with a common center, which facilitates the machining and manufacturing of the two, simplifies the manufacturing process, and because the protective net 2 is usually a circular cross-section wire mesh, the above arrangement can better match the outer contour of the protective rod, thereby improving the clamping applicability.

[0064] According to some optional embodiments of the utility model, as shown in Figure 2 , Figure 4 and Figure 7 , the protective net body 21 includes a plurality of horizontal rods 211 and a plurality of vertical rods 212, the plurality of horizontal rods 211 are distributed in the vertical direction, the plurality of vertical rods 212 are distributed in the horizontal direction, and the plurality of vertical rods 212 are connected with the plurality of horizontal rods 211.

[0065] Specifically, the protective net body 21 is only composed of a plurality of horizontal rods 211 extending in the horizontal direction (i.e. left and right direction) and a plurality of vertical rods 212 extending in the vertical direction (i.e. up and down direction), to form a mesh protective area, which can simultaneously take into account the flow effect of the airflow at the air outlet 12 and improve the safety of user use, and does not need to process and manufacture a bent or twisted protective rod, which is beneficial to improve the manufacturing efficiency and reduce the manufacturing cost.

[0066] As shown in Figure 3 and Figure 8 , the clamping portion 122 is clamped and matched with the uppermost horizontal rod 211, and the positioning portion 22 is connected below the lowermost horizontal rod 211 or any vertical rod 212.

[0067] That is, the clamping portion 122 is clamped and matched with the uppermost horizontal rod 211 on the protective net 2, so that the clamping portion 122 is clamped and matched with the horizontal rod 211 closest to itself, which can connect the protective net body 21 and the clamping portion 122 as a whole, and can also avoid the additional use of unnecessary materials, thereby improving the rationality and economy of the arrangement.

[0068] Optionally, the diameter of the horizontal rod 211 and the vertical rod 212 is 1.5-2.5mm, and the surface is specially treated (such as spraying and electrophoresis), which can be used to prevent condensation.

[0069] Specifically, as shown in Figure 3 and Figure 6As shown, the positioning part 22 comprises a positioning vertical rod 221 and a positioning horizontal rod 222, and the positioning vertical rod 221 is integrally formed with any one vertical rod 212.

[0070] In the embodiment, the positioning vertical rod 221 is integrally formed with any one vertical rod 212, which can reduce the number of parts and the assembly time, thereby reducing the assembly process, lowering the manufacturing cost, and improving the production efficiency.

[0071] Alternatively, the positioning vertical rod 221 can be connected with any one vertical rod 212 by welding, which is not limited thereto.

[0072] Further, the horizontal rod 211 and the positioning vertical rod 221 are cross arranged, and the positioning horizontal rod 222 abuts against the bottom of the air outlet 12. In this way, part of the outer surface of the positioning horizontal rod 222 is in contact with the upper surface of the bottom of the air outlet 12, which can support the positioning horizontal rod 222, thereby sharing part of the force of the protective net 2 on the positioning hole 121, reducing the risk of stress concentration at the positioning hole 121, and achieving the anti-fumble effect, which is beneficial to the operator to quickly find the installation position of the protective net 2 matched with the positioning hole 121, thereby improving the assembly efficiency.

[0073] In the embodiment, the horizontal rod 211 and the positioning vertical rod 221 are cross arranged, that is, they can be connected with each other in different directions. For example, the horizontal rod 211 and the positioning vertical rod 221 are perpendicular to each other.

[0074] Alternatively, in combination with the above-mentioned embodiment, Figure 5 As shown, the positioning horizontal rod 222 can be a short horizontal rod, which can reduce the shielding area of the positioning horizontal rod 222 on the air outlet 12, thereby reducing the air volume loss at the air outlet 12 and improving the air outlet efficiency.

[0075] Alternatively, the positioning horizontal rod 222 can also be a complete horizontal rod 211, which can improve the manufacturing consistency of all the horizontal rods 211, thereby improving the manufacturing efficiency.

[0076] According to some optional embodiments of the present application, in combination with the above-mentioned embodiment, Figure 2 and Figure 5 As shown, the air conditioner indoor unit 100 further comprises a support 3, a linkage rod, and a plurality of guide vanes, the support 3 is connected between the top and the bottom of the air outlet 12, the linkage rod is movably arranged on the support 3, and the plurality of guide vanes are arranged on the linkage rod and are spaced apart in the length direction of the linkage rod.

[0077] Specifically, along the left-right direction of the air conditioner indoor unit 100, a support piece 3 is arranged at the middle position of the air outlet 12, which can strengthen the structural strength of the air outlet 12, and also provide a mounting basis for the linkage rod and the air guide blade; the air guide blade can change the direction of the airflow, so that the airflow can be blown to the required space range according to the user's demand, and also can avoid the discomfort caused by direct blowing to the human body; the linkage rod can slide up and down or left and right within a certain range, which can drive multiple air guide blades to move synchronously under the action of driving force, realizing unified control of the airflow direction.

[0078] As shown in Figure 2 and Figure 5 , the support piece 3 is provided with a limiting groove 31, which is limited with the top of the protective net body 21, so arranged that the limiting groove 31 can limit the protective net 2, preventing the protective net 2 from leaving the air outlet 12, and further strengthening the stability of the installation position of the protective net 2. Moreover, when the air conditioner indoor unit 100 is running, vibration and noise may be generated, and the limiting groove 31 on the support piece 3 further limits the position of the protective net 2, which can prevent it from loosening or resonating in vibration, thereby reducing noise and improving the working stability of the air conditioner indoor unit 100.

[0079] Specifically, as shown in Figure 2 and Figure 5 , the support piece 3 is provided with a support arm 32 protruding forward, the linkage rod is movably arranged on the support arm 32, the protective net body 21 is provided with an avoiding opening 213, and the support arm 32 passes through the avoiding opening 213.

[0080] It can be understood that the support piece 3 can improve the structural strength of the air outlet 12 on the one hand, and also serves as a force supporting carrier for the linkage rod, and the support arm 32 can shorten the distance between the support piece 3 and the linkage rod, which is conducive to the linkage rod being connected as a whole with the support piece 3 through the support arm 32, thereby improving the installation stability; since the protective net body 21 is arranged on the outside of the support piece 3, the avoiding opening 213 for avoiding the support arm 32 is arranged on the protective net body 21, so as to avoid the risk of structural interference and collision between the protective net body 21 and the support arm 32, thereby improving the rationality of space arrangement.

[0081] Further, as shown in Figure 2 and Figure 5 , the protective net body 21 includes a plurality of horizontal rods 211 and a connecting rod 214, the plurality of horizontal rods 211 are vertically spaced, and at least two horizontal rods 211 located in the middle are provided with notches 2111 to jointly form the avoiding opening 213.

[0082] That is to say, along the up-down direction, the at least two horizontal rods 211 located in the middle are formed with the interrupted gap 2111 at their own, and are jointly formed with the larger-area avoiding opening 213, so that the guard net 2 can be facilitated to release the limiting effect on the support arm 32 in the vertical direction, so as to facilitate the support arm 32 to smoothly pass through the guard net 2.

[0083] Further, in combination with Figure 2 and Figure 5 It is shown that the connecting rod 214 extends in the vertical direction, and the connecting rod 214 is located at least one side of the avoiding opening 213 in the transverse direction, and the at least two horizontal rods 211 located in the middle and the horizontal rod 211 located below are connected with the connecting rod 214, and the connecting rod 214 and the uppermost horizontal rod 211 are formed with the break 215.

[0084] Among them, as arranged above, the end of the horizontal rod 211 forming the gap 2111 close to the support 3 can be connected with the complete horizontal rod 211 as a whole, so as to improve the structural strength of each other, and also improve the positional stability.

[0085] In addition, in combination with Figure 2 and Figure 5 It is shown that the connecting rod 214 and the uppermost horizontal rod 211 are formed with the break 215, so that the uppermost horizontal rod 211 is more elastic at the limiting groove 31, which is conducive to the smooth assembly of the uppermost horizontal rod 211 in the limiting groove 31, thereby improving the assembly convenience.

[0086] The air conditioner indoor unit 100 according to the second aspect of the present application comprises a shell 1, a fan assembly, an indoor heat exchanger and a protective net 2.

[0087] Specifically, the shell 1 is provided with an air inlet 11 and an air outlet 12, the fan assembly is arranged in the shell 1, the indoor heat exchanger is arranged in the shell 1, the fan assembly is used to introduce the airflow outside the shell 1 into the shell 1 through the air inlet 11, and then output the airflow outside through the air outlet 12 after heat exchange by the indoor heat exchanger, the protective net 2 is arranged at the air outlet 12, and the protective net 2 is connected with the shell 1, and the protective net 2 is used to shield the fan assembly.

[0088] Among them, the airflow flows through the air inlet 11 and the air outlet 12 on the shell 1, realizing the air circulation between the indoor airflow and the air conditioner indoor unit 100, the fan assembly can drive the external airflow to enter the air conditioner indoor unit 100 from the air inlet 11, the indoor heat exchanger exchanges heat with the external airflow entering from the air inlet 11, and the heat exchange airflow is blown to the indoor from the air outlet 12 under the driving of the fan assembly, so as to achieve the effect of adjusting the indoor temperature.

[0089] In addition, the protective net 2 is arranged at the air outlet 12, which can effectively prevent foreign matters from entering the inside of the casing 1, and can reduce the influence of foreign matters on the air conditioner indoor unit 100, and can prevent the user from mistakenly putting fingers or other objects into the air outlet 12, and can prevent the user from being hurt by mistakenly touching the rotating fan assembly in the casing 1.

[0090] Further, the top of the air outlet 12 is provided with a first clamping part 122, and the bottom of the air outlet 12 is provided with a first inserting part, the top of the protective net 2 is provided with a second clamping part 122, and the bottom of the protective net 2 is provided with a second inserting part, the first clamping part 122 is clamped with the second clamping part 122, and the first inserting part and the second inserting part are inserted and matched.

[0091] It can be understood that, as arranged above, the assembly efficiency of the protective net 2 can be effectively improved. For example, in the installation process of the protective net 2, the operator first matches the second inserting part at the lower end of the protective net 2 with the first inserting part at the bottom of the air outlet 12, then rotates the top of the protective net 2 to the first clamping part at the top of the air outlet 12 around the first inserting part, and then clamps the second clamping part of the protective net 2 in the first clamping part. Compared with the installation structure form of the conventional additional parts (such as screws or plastic parts, one of which is to fix the protective net 2 to the air outlet 12 through screws, and the other of which is to additionally increase plastic parts at both ends of the wire mesh, and then fix the plastic parts to the air outlet 12), the embodiment of the present case can effectively improve the assembly efficiency of the protective net 2, and can also reduce the manufacturing cost.

[0092] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0093] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example.

[0095] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0096] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example.

[0097] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An indoor unit of an air conditioner, comprising: a casing, an air inlet and an air outlet being arranged on the casing; a fan assembly arranged in the casing; an indoor heat exchanger arranged in the casing, the fan assembly being configured to introduce an airflow outside the casing into the casing through the air inlet, and output the airflow outside the casing through the air outlet after heat exchange by the indoor heat exchanger; a protective screen arranged at the air outlet and connected with the casing, the protective screen being configured to shield the fan assembly; characterized in that: a positioning hole is arranged at a bottom of the air outlet; the protective screen comprises: a protective screen body arranged at the air outlet; a positioning portion connected to a bottom of the protective screen body, the positioning portion being positioned and matched with the positioning hole, and the positioning portion being rotatable in the positioning hole during installation; wherein: a clamping portion is arranged at a top of the air outlet, and the clamping portion is clamped and matched with a top of the protective screen body.

2. The indoor unit of claim 1, wherein, the clamping portion comprises: a first elastic arm, an upper end of the first elastic arm being connected to the top of the air outlet; a second elastic arm, an upper end of the second elastic arm being connected to the top of the air outlet, the second elastic arm being located behind the first elastic arm, and a lower end of the first elastic arm and a lower end of the second elastic arm jointly defining a clamping groove, the clamping groove being clamped and matched with the top of the protective screen body.

3. The air conditioner indoor unit according to claim 2, wherein the clamping groove has an opening, a width of the opening increasing in a direction away from the clamping groove.

4. The indoor unit of claim 2, wherein the lower end of the first elastic arm is configured as a first arc-shaped end, the lower end of the second elastic arm is configured as a second arc-shaped end, the first arc-shaped end is located below and behind the second arc-shaped end, and the first arc-shaped end and the second arc-shaped end are arranged with a common center.

5. The air conditioner indoor unit according to claim 1, wherein the protective screen body comprises: a plurality of horizontal rods, the plurality of horizontal rods being vertically spaced apart; a plurality of vertical rods, the plurality of vertical rods being transversely spaced apart and connected with the plurality of horizontal rods; wherein the clamping portion is clamped and matched with an uppermost horizontal rod, and the positioning portion is connected below a lowermost horizontal rod or any vertical rod.

6. The air conditioner indoor unit according to claim 5, wherein the positioning portion comprises: a positioning vertical rod, the positioning vertical rod being integrally formed with any vertical rod; a positioning horizontal rod, the positioning horizontal rod being transversely arranged with the positioning vertical rod, and the positioning horizontal rod abutting against the bottom of the air outlet.

7. The air conditioner indoor unit according to claim 1, wherein further comprising: a support connected between the top and the bottom of the air outlet; a linkage rod movably arranged in the support; a plurality of guide vanes arranged in the linkage rod and spaced apart along a length direction of the linkage rod; wherein the support is provided with a limiting groove, and the limiting groove is limitingly matched with the top of the protective screen body.

8. The indoor unit of claim 7, wherein, the support is provided with a support arm protruding forward, the linkage rod is movably arranged in the support arm, the protective screen body is provided with an avoiding opening, and the support arm passes through the avoiding opening.

9. The air conditioner indoor unit according to claim 8, characterized in that, the protective screen body comprises: A plurality of horizontal bars, a plurality of the horizontal bars are vertically spaced, at least two horizontal bars in the middle are provided with notches to form the avoiding opening together; A connecting rod, the connecting rod extends vertically and is located at least one side of the avoiding opening transversely, the at least two horizontal bars in the middle and the horizontal bars below are connected with the connecting rod respectively, and a gap is formed between the connecting rod and the uppermost horizontal bar.

10. An air conditioner indoor unit, comprising: A shell, the shell is provided with an air inlet and an air outlet; A fan assembly, the fan assembly is arranged in the shell; An indoor heat exchanger, the indoor heat exchanger is arranged in the shell, the fan assembly is used to introduce the airflow outside the shell into the shell through the air inlet, and the airflow is outputted outside through the air outlet after heat exchange through the indoor heat exchanger; A protective net, the protective net is arranged at the air outlet and connected with the shell, and the protective net is used to shield the fan assembly; Characterized in that, The top of the air outlet is provided with a first clamping part and the bottom is provided with a first inserting part, the top of the protective net is provided with a second clamping part and the bottom is provided with a second inserting part, the first clamping part is clamped with the second clamping part, and the first inserting part and the second inserting part are inserted and matched.

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