Indoor unit of the air conditioner

Abstract

Indoor unit of the air conditioning system, characterized in that it comprises: a base; an engine cover and an air guide frame, wherein the engine cover and the air guide frame are each connected to the base; wherein one is provided with a first plug-in opening between the engine cover and the air guide frame, and the other is provided with a first plug-in snap lock between the engine cover and the air guide frame, and wherein the first plug-in snap lock engages in the first plug-in opening.

Description

TECHNICAL AREA

[0001] The present disclosure relates to the technical field of air conditioning, in particular an indoor unit of the air conditioning system. STATE OF THE ART

[0002] Currently, the air duct frame and the base of the air conditioner's indoor unit are typically manufactured as a single piece. However, if the air duct frame has a complex structure or larger dimensions, it cannot be manufactured as a single unit. In such cases, the air duct frame and base must be machined and manufactured separately, and then joined together. Since the air duct frame, along with other components of the air conditioner's indoor unit, forms the air outlet duct, the question of how to ensure the assembly accuracy of the air duct frame has a significant impact on the air conditioner's performance. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The present disclosure provides an indoor air conditioning unit to improve the assembly accuracy of the air guide frame.

[0004] An indoor unit of the air conditioning system of the present disclosure comprises a base, a motor cover and an air guide frame, wherein the motor cover and the air guide frame are each connected to the base; wherein one of the motor cover and the air guide frame is provided with a first plug-in opening, and the other of the motor cover and the air guide frame is provided with a first plug-in snap lock, and wherein the first plug-in snap lock engages in the first plug-in opening.

[0005] Optionally, the first insertion opening extends along a front-to-back direction, with the insertion direction of the first snap fastener being a front-to-back direction.

[0006] Optionally, the first snap-fit ​​fastener comprises a fitting section and a guide section connected to each other, wherein in the extension direction of the first insertion opening the guide section is arranged on one side of the fitting section, and wherein the fitting section snaps into the first insertion opening, and wherein the cross-sectional area of ​​the guide section gradually increases in the direction close to the fitting section.

[0007] Optionally, the first snap-in fastener forms an interference fit with the first insertion opening.

[0008] Optionally, the first snap-fit ​​fastener comprises a plurality of rib plates, wherein one end of each of the rib plates is connected in the width direction to one end of the other rib plates in the width direction, and wherein the other end of the rib plate is at least partially cantilevered in the width direction and is supported against the wall of the first snap-fit ​​opening.

[0009] Optionally, at least one ribbed plate is a curved plate, wherein the curved plate comprises a first section and a second section which are connected to each other, and wherein the second section is arranged in the width direction of the curved plate on one side of the first section, and wherein the second section forms an obtuse angle with the first section.

[0010] Optionally, the second section comprises a first width segment and a second width segment connected to each other, the second width segment being arranged in the extension direction of the first plug-in opening on one side of the first width segment, and the width of the second width segment being greater than the width of the first width segment; and the first width segment snapping into the first plug-in opening, and a side of the second width segment facing away from the first width segment and a side of the second width segment facing away from the first section each being connected to the engine cover or the air guide frame.

[0011] Optionally, the indoor unit of the air conditioner further includes an evaporator bracket connected to the base, wherein one of the evaporator bracket and the air guide frame is provided with a second plug-in opening, and the other of the evaporator bracket and the air guide frame is provided with a second plug-in snap lock, and wherein the second plug-in snap lock engages in the second plug-in opening.

[0012] Optionally, the extension direction of the second plug-in opening is the same as the extension direction of the first plug-in opening, with the insertion direction of the second plug-in snap lock being the same as the insertion direction of the first plug-in snap lock.

[0013] Optionally, the first and second plug-in openings each extend in a front-to-back direction, with the second and first plug-in openings being arranged on two different sides of the air guide frame in a left-to-right direction.

[0014] Optionally, one is provided with a third plug-in opening between the base and the air guide frame, and the other is provided with a third plug-in snap lock between the base and the air guide frame, wherein the third plug-in snap lock engages in the third plug-in opening.

[0015] Optionally, the extension direction of the third plug-in opening is the same as the extension direction of the first plug-in opening, with the insertion direction of the third plug-in snap lock being the same as the insertion direction of the first plug-in snap lock.

[0016] During the assembly of the air guide frame in the indoor unit of the air conditioning system of this disclosure, the motor cover is first connected to the base; then the first snap-fit ​​fastener engages in the first slot to fix the relative positions of the air guide frame and the base through the motor cover, thereby ensuring these relative positions; after that, the air guide frame is connected to the base. By first positioning the air guide frame and the base and then connecting the air guide frame to the base, the assembly accuracy of the air guide frame is improved. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 shows a schematic diagram of the assembly structure of a base, a motor cover, an air guide frame, an evaporator and an evaporator holder in an indoor unit of the air conditioning system according to the embodiment of the present disclosure; Fig. Figure 2 shows an enlarged view of location A according to Fig. 1; Fig. Figure 3 shows a schematic diagram of the assembly structure of a base, a motor cover and an evaporator holder in an indoor unit of the air conditioning system according to the embodiment of the present disclosure; Fig. Figure 4 shows an enlarged view of location B according to Fig. 3; Fig. Figure 5 shows a schematic diagram of the structure of a first snap-lock fastener according to Fig. 4; Fig. Figure 6 shows an enlarged view of point C according to Fig. 3; Fig. Figure 7 shows a schematic diagram of the structure of an air guide frame in an indoor unit of the air conditioning system according to the embodiment of the present disclosure from one perspective; Fig. Figure 8 shows a schematic diagram of the structure of an air guide frame in an indoor unit of the air conditioning system according to the embodiment of the present disclosure from a different perspective; Fig. Figure 9 shows a schematic diagram of the structure of an air guide frame in an indoor unit of the air conditioning system according to the embodiment of the present disclosure from a further perspective; Fig. Figure 10 shows a schematic diagram of the assembly structure of a base and an evaporator holder in an indoor unit of the air conditioning system according to the embodiment of the present disclosure; Fig. Figure 11 shows a schematic diagram of the assembly structure of a base, a motor cover, an air guide frame and an evaporator holder in an indoor unit of the air conditioning system according to the embodiment of the present disclosure. Reference symbol list 1 Base 11 Third insertion opening 12 Third mounting hole 2 Engine cover 21 First snap fastener 211 Fitting section 212 Management section 213 Ribbed plate 214 Curved plate 2141 First Section 2142 Second Section 2143 First width segment 2144 Second width segment 22 First mounting hole 3 air guide frames 31 First insertion opening 32 Second insertion opening 33 Third snap fastener 4 evaporator holders 41 Second snap fastener 42 Second mounting hole 5 evaporators 6 First fastening element 7 Second fastening element 8 Third fastening element DETAILED DESCRIPTION

[0017] The embodiments of the present disclosure are explained in more detail below, and examples of these embodiments are illustrated in the accompanying drawings. The embodiments explained in connection with the accompanying drawings are exemplary, serve only to explain the present disclosure, and cannot be understood as limiting the present disclosure.

[0018] As in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. As shown in Figure 7, the indoor unit of the air conditioner in the embodiment of the present disclosure comprises a base 1, a motor cover 2, and an air guide frame 3, wherein the motor cover 2 and the air guide frame 3 are each connected to the base 1. One of the motor cover 2 and the air guide frame 3 is provided with a first plug-in opening 31, while the other of the motor cover 2 and the air guide frame 3 is provided with a first plug-in snap lock 21, wherein the first plug-in snap lock 21 engages in the first plug-in opening 31. The indoor unit of the air conditioner can have a wall-mounted configuration.

[0019] For example, the air guide frame 3 is provided with the first plug opening 31 and the motor cover 2 is provided with the first plug snap lock 21.

[0020] During the assembly of the air guide frame 3 in the indoor unit of the air conditioning system according to the embodiment of the present disclosure, the motor cover 2 is first connected to the base 1; then the first snap-fit ​​fastener 21 engages in the first slot 31 to fix the relative positions of the air guide frame 3 and the base 1 through the motor cover 2, thereby securing these relative positions; subsequently, the air guide frame 3 is connected to the base 1. By first positioning the air guide frame 3 and the base 1 and then connecting the air guide frame 3 to the base 1, the assembly accuracy of the air guide frame 3 is improved.

[0021] In some embodiments, such as in Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the insertion direction of the first snap fastener 21 is the front-back direction, with the first insertion opening 31 extending along the front-back direction. The front-back direction is as shown in Figure 5. Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. Figure 6 shows, for example, that the insertion direction of the first snap fastener 21 runs from back to front, i.e., the first snap fastener 21 is inserted into the first opening 31 along a back-to-front direction. The air guide frame 3 can be installed along a front-to-back direction, and during the installation process, the first snap fastener 21 is inserted into the first opening 31 along a back-to-front direction.

[0022] Since the first insertion opening 31 extends along the front-to-back direction and the insertion direction of the first snap lock 21 is also front-to-back, the air guide frame 3, after the first snap lock 21 engages in the first insertion opening 31, can be positioned at least in the top-to-bottom direction to effectively prevent the formation of a gap in the air outlet duct formed by the air guide frame 3 and other components, thus improving the performance of the air conditioner. Furthermore, the air guide frame 3 can be installed and removed along the front-to-back direction. This eliminates the need to provide space in the indoor unit of the air conditioner for the top-to-bottom installation or removal of the air guide frame 3, which facilitates ceiling mounting of the indoor unit.

[0023] In some embodiments, such as in Fig. As shown in Figure 4, the first snap-fit ​​fastener 21 comprises a fitting section 211 and a guide section 212 which are connected to each other, wherein in the extension direction of the first insertion opening 31 the guide section 212 is arranged on one side of the fitting section 211, and wherein the fitting section 211 snaps into the first insertion opening 31, and wherein the cross-sectional area of ​​the guide section 212 gradually increases in the direction close to the fitting section 211.

[0024] The cross-sectional area of ​​the guide section 212 can be understood as the area of ​​the cross-section that results when the guide section 212 is intersected by a plane perpendicular to the direction of extension of the first insertion opening 31. For example, it is the area of ​​the cross-section that results when the guide section 212 is intersected by a plane perpendicular to the front-back direction.

[0025] For example, as in Fig. Figure 4 shows the guide section 212 arranged on the front of the fitting section 211, wherein the cross-sectional area of ​​the guide section 212 gradually increases along a front-to-back direction.

[0026] By gradually increasing the cross-sectional area of ​​the guide section 212 towards the fitting section 211, the guide section 212 plays a guiding role when the first snap fastener 21 is inserted into the first socket 31, making it easier for the first snap fastener 21 to engage in the first socket 31, thereby improving the assembly efficiency of the air guide frame 3.

[0027] Of course, in other embodiments the cross-sectional area of ​​the first snap-lock fastener 21 can be designed so that it is identical throughout.

[0028] In some embodiments, the first snap-in fastener 21 forms an interference fit with the first insertion opening 31.

[0029] By forming an interference fit between the first snap lock 21 and the first opening 31, the fit between the first snap lock 21 and the first opening 31 can be improved in order to improve the positioning and assembly accuracy of the air guide frame 3.

[0030] In some embodiments, such as in Fig. 4 and Fig. As shown in Figure 5, the first snap-fit ​​fastener 21 comprises a plurality of rib plates 213, wherein one end of each of the rib plates 213 is connected in the width direction to one end of the other rib plates 213 in the width direction, and wherein the other end of the rib plates 213 is at least partially cantilevered in the width direction.

[0031] For example, as in Fig. 4 and Fig. Figure 5 shows the first snap lock 21 comprising three ribbed plates 213, one end of which is connected to each other in the lateral direction, and the other end of which is cantilevered in the lateral direction. When the first snap lock 21 and the first insertion opening 31 engage, the cantilevered ends of the ribbed plates 213 are supported against the wall of the first insertion opening 31.

[0032] By designing the first snap fastener 21 to encompass a multitude of rib plates 213, the rib plate 213 can undergo elastic deformation when the first snap fastener 21 engages in the first slot opening 31, thus facilitating the insertion of the first snap fastener 21 into the first slot opening 31 and improving the assembly efficiency of the air guide frame 3.

[0033] Optionally, at least one ribbed plate 213 is a curved plate, wherein the curved plate comprises a first section 2141 and a second section 2142 which are connected to each other, wherein the second section is arranged in the width direction of the curved plate 214 on one side of the first section 2141, and wherein the second section 2142 forms an obtuse angle with the first section 2141.

[0034] For example, as in Fig. 4 and Fig. Figure 5 shows two of the ribbed plates 213 curved plates 214. The lateral direction of the first section 2141 is identical to the left-right direction, while the second section 2142 is inclined downwards relative to the first section 2141. The upper end of the second section 2142 is connected to the first section 2141, while the lower end of the second section 2142 rests against the wall of the first insertion opening 31. The front-back direction and the left-right direction are as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6 shown.

[0035] By arranging the ribbed plate 213 as a curved plate 214, the structural strength of the ribbed plate 213 can be increased, thereby improving the reliability of the indoor unit of the air conditioner. Furthermore, by setting the angle between the second section 2142 and the first section 2141 as an obtuse angle, a problem with stress concentration at the junction between the second section 2142 and the first section 2141 can be effectively avoided, further increasing the structural strength of the ribbed plate 213.

[0036] Optional includes, as in Fig. Figure 5 shows the second section 2142 comprising a first width segment 2143 and a second width segment 2144, which are connected to each other, wherein the second width segment 2144 is arranged in the extension direction of the first plug-in opening 31 on one side of the first width segment 2143, and wherein the width of the second width segment 2144 is greater than the width of the first width segment 2143. The first width segment 2143 can snap into the first plug-in opening 31, with a side of the second width segment 2144 facing away from the first width segment 2143 and a side of the second width segment 2144 facing away from the first section 2141 each being connected to the engine cover 2 or the air guide frame 3.

[0037] For example, as in Fig. Figure 5 shows that the width of the first width segment 2143 is L1 and the width of the second width segment 2144 is L2, where L2 is larger than L1. The second width segment 2144 is located at the rear of the first width segment 2143, with its rear end and lower end connected to the motor cover 2. The lower end of the first width segment 2143 rests against the wall of the first plug-in opening 31.

[0038] By designing the second section 2142 to include a first width segment 2143 and a second width segment 2144, the connection area between the first snap lock 21 and the motor cover 2 can be increased to enhance the connection reliability between the first snap lock 21 and the motor cover 2, thereby further improving the reliability of the indoor unit of the air conditioner.

[0039] In some embodiments, such as in Fig. 1, Fig. 3, Fig. 6, Fig. 9, Fig. 10 and Fig. As shown in Figure 11, the indoor unit of the air conditioner further comprises an evaporator bracket 4, which is connected to the base 1. One of the two components, evaporator bracket 4 and air guide frame 3, is provided with a second plug-in opening 32, and the other is provided with a second snap-in fastener 41, wherein the second snap-in fastener 41 can be engaged in the second plug-in opening 32. The evaporator bracket 4 serves to install and secure the evaporator 5.

[0040] For example, as in Fig. 6, Fig. 8 and Fig. 10 shows the air guide frame 3 being provided with the second plug opening 32 and the evaporator holder 4 being provided with the second plug snap lock 41.

[0041] During the assembly of the air guide frame 3, the motor cover 2 and the evaporator bracket 4 are first connected to the base 1; then the first snap lock 21 engages in the first socket 31, and the second snap lock 41 engages in the second socket 32 ​​to fix the relative positions of the air guide frame 3 and the base 1 through the motor cover 2 and the evaporator bracket 4, thereby further improving the assembly accuracy of the air guide frame 3.

[0042] Optional, as in Fig. 1 shown, the evaporator 5 is arranged on the underside of the air guide frame 3, i.e., the air outlet duct of the indoor unit of the air conditioner is an air outlet duct with an upward air outlet.

[0043] Optionally, the extension direction of the second plug-in opening 32 is the same as the extension direction of the first plug-in opening 31, wherein the insertion direction of the second plug-in snap lock 41 is the same as the insertion direction of the first plug-in snap lock 21.

[0044] For example, the Fig. 3, Fig. 4, Fig. 5 to Fig. 6 The insertion direction of the second snap lock 41 and the insertion direction of the first snap lock 21 are each defined as a front-back direction. The first insertion opening 31 and the second insertion opening 32 each extend along the front-back direction.

[0045] For example, the insertion direction of the second snap lock 41 is from back to front; that is, the second snap lock 41 is inserted into the second slot 32 along a back-to-front direction. The air guide frame 3 can be installed along a front-to-back direction, and during installation, the second snap lock 41 and the first snap lock 21 are each inserted into the second slot 32 and the first slot 31, respectively, along a back-to-front direction.

[0046] By ensuring that the extension direction of the second plug-in opening 32 is the same as the extension direction of the first plug-in opening 31 and that the insertion direction of the second plug-in snap lock 41 is the same as the insertion direction of the first plug-in snap lock 21, it can be achieved in the installation process of the air guide frame 3 that the first plug-in snap lock 21 engages in the first plug-in opening 31 and at the same time the second plug-in snap lock 41 engages in the second plug-in opening 32 in the same direction, in order to further improve the assembly efficiency of the air guide frame 3.

[0047] Optionally, the first plug-in opening 31 and the second plug-in opening 32 each extend along the front-back direction, with the second plug-in opening 32 and the first plug-in opening 31 being arranged on two different sides of the air guide frame 3 in the left-right direction.

[0048] It should be noted that if the user is standing directly opposite the indoor unit of the air conditioner, the left side of the indoor unit of the air conditioner is the user's right side and vice versa.

[0049] For example, the second plug-in opening 32 is located on the left side of the first plug-in opening 31, and the second snap-in fastener 41 is located on the left side of the first snap-in fastener 21. At this point, the evaporator holder 4 is the left holder of the evaporator 5, and a right holder can also be arranged on the right side of the evaporator 5, and the evaporator 5 is securely fastened by means of the left and right holders.

[0050] By having the first plug-in opening 31 and the second plug-in opening 32 each extend along the front-back direction and by arranging the second plug-in opening 32 and the first plug-in opening 31 on two different sides of the air guide frame 3 in the left-right direction, after the first plug-in snap lock 21 has been engaged in the first plug-in opening 31 and the second plug-in snap lock 41 has been engaged in the second plug-in opening 32, not only can the positioning of the air guide frame 3 in the top-bottom and left-right directions be ensured, but also rotation of the air guide frame 3 about an axis running in the front-back direction is prevented in order to improve the stability of the positioning of the air guide frame 3 and thereby further increase the assembly accuracy.

[0051] In some embodiments, as in Fig. 8, Fig. 9 to Fig. 10 shown, one of which is provided with a third plug-in opening 11 between the base 1 and the air guide frame 3, the other of which is provided with a third plug-in snap lock 33 between the base 1 and the air guide frame 3, and wherein the third plug-in snap lock 33 engages in the third plug-in opening 11.

[0052] For example, the air guide frame 3 is provided with a third snap lock 33 and the base 1 is provided with a third plug opening 11.

[0053] When assembling the air guide frame 3, the motor cover 2 and the evaporator bracket 4 are first connected to the base 1; then the first snap lock 21 fits into the first slot 31, the second snap lock 41 fits into the second slot 32, and the third snap lock 33 fits into the third slot 11, in order to fix the relative positions of the air guide frame 3 and the base 1 through the motor cover 2, the evaporator bracket 4, and the base 1, thereby further improving the assembly accuracy of the air guide frame 3.

[0054] Optionally, the extension direction of the third plug-in opening 11 is the same as the extension direction of the first plug-in opening 31, wherein the insertion direction of the third plug-in snap lock 33 is the same as the insertion direction of the first plug-in snap lock 21.

[0055] For example, the insertion direction of the third snap fastener 33 and that of the first snap fastener 21 is the front-back direction, with the first insertion opening 31 and the third insertion opening 11 each extending along the front-back direction.

[0056] For example, the insertion direction of the third snap lock 33 is from back to front; that is, the third snap lock 33 is inserted into the third slot 11 along a back-to-front direction. The air guide frame 3 can be installed along a front-to-back direction, and during installation, the third snap lock 33 and the first snap lock 21 are each inserted into the third slot 11 and the first slot 31, respectively, along a back-to-front direction.

[0057] By ensuring that the extension direction of the third plug-in opening 11 is the same as the extension direction of the first plug-in opening 31 and that the insertion direction of the third plug-in snap lock 33 is the same as the insertion direction of the first plug-in snap lock 21, it is possible during the installation process of the air guide frame 3 for the first plug-in snap lock 21 to engage in the first plug-in opening 31 and simultaneously for the third plug-in snap lock 33 to engage in the third plug-in opening 11 along the same direction, in order to further improve the assembly efficiency of the air guide frame 3.

[0058] In some embodiments, such as in Fig. 4, Fig. 6 and Fig. As shown in Figure 10, the motor cover 2 is provided with a first mounting hole 22, the evaporator bracket 4 with a second mounting hole 42, the base 1 with a third mounting hole 12, and the air guide frame 3 with a first connecting hole, a second connecting hole, and a third connecting hole. Fig.As shown in Figure 11, the indoor unit of the air conditioner comprises a first fastening element 6, a second fastening element 7, and a third fastening element 8. The first fastening element 6 is passed through the first connecting hole and connected to the first mounting hole 22 to ensure a stable connection between the air guide frame 3 and the motor cover 2; the second fastening element 7 is passed through the second connecting hole and connected to the second mounting hole 42 to ensure a stable connection between the air guide frame 3 and the evaporator bracket 4; and the third fastening element 8 is passed through the third connecting hole and connected to the third mounting hole 12 to ensure a stable connection between the air guide frame 3 and the base 1.

[0059] The first mounting hole 22, the second mounting hole 42 and the third mounting hole 12 can be a threaded hole, where the first fastening element 6, the second fastening element 7 and the third fastening element 8 can be screws.

[0060] The assembly and disassembly process of the air guide frame 3 in the indoor unit of the air conditioning system according to the embodiment of the present disclosure is as follows: First, the motor cover 2 and the evaporator bracket 4 are connected to the base 1. Then, the air guide frame 3 is installed in a front-to-back direction so that the first snap fastener 21, the second snap fastener 41, and the third snap fastener 33 each engage in the first slot 31, the second slot 32, and the third slot 11, respectively, to ensure that the air guide frame 3 is limited in the up-down and left-right directions. Then, a stable connection between the air guide frame 3 and the motor cover 2, the evaporator bracket 4, and the base 1 is achieved using the first fastener 6, the second fastener 7, and the third fastener 8 to complete the installation and securing of the air guide frame 3.During disassembly, first the first fastening element 6, the second fastening element 7, and the third fastening element 8 are removed. Then the air guide frame 3 is taken out in a direction running from back to front.

[0061] It should be noted that in the explanation of this disclosure, the directional or positional relationships described by terms such as "middle," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., are based on the directional or positional relationships illustrated in the drawings. They serve only to clarify this disclosure and to facilitate its explanation, and they do not indicate or suggest that the illustrated devices or elements have specific directions or should be constructed and operated in specific directions. Therefore, they cannot be understood as a limitation of this disclosure.

[0062] Furthermore, “the first” and “the second” are used only to explain the objective and cannot be understood as indicating or implying relative importance or implicitly referring to the number of required technical features. Therefore, the features defined by “the first” and “the second” may explicitly or implicitly include at least one of the features. In the explanatory notes to this disclosure, “several” refers to at least two, such as two, three, etc., unless otherwise specified.

[0063] Unless otherwise expressly stated and defined in this disclosure, the terms "installation," "coupling," "connection," and "fastening" should be understood in a broad sense. For example, "fastening" can refer to a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection or a connection via a medium; it can also be a connection within two elements or an interaction between two elements, unless otherwise specified. The person skilled in the art in this field can understand the specific meanings of the aforementioned technical terms in this disclosure based on the specific situations.

[0064] In the present disclosure, the wording that the first feature is “above” or “below” the second feature may refer to the first and second features being in direct contact or to the first and second features being in indirect contact through an intermediary medium, unless other clear statements and definitions exist. Furthermore, the wording that the first feature is “above,” “above,” or “on the top of the second feature” may refer to the first feature being directly above or obliquely above the second feature, or to the horizontal height of the first feature being greater than that of the second feature.Furthermore, the wording that the first feature is "under the second feature", "below the second feature" or "at the bottom of the second feature" can refer to the fact that the first feature is located directly below or diagonally below the second feature, or that the horizontal height of the first feature is less than that of the second feature.

[0065] In this disclosure, the terms “an embodiment”, “some embodiments”, “an example”, “a specific example”, or “some examples” refer to the fact 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 this disclosure. In this description, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined appropriately in one or more embodiments or examples.In the absence of conflicts, experts in this field may additionally combine and connect the various embodiments or examples explained in this description, or the features in the various embodiments or examples.

[0066] Although the embodiments of the present disclosure are presented and explained above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Changes, modifications, substitutions, and variations made to the above embodiments by the person skilled in the art in this field should be considered to be covered by the scope of protection of the present disclosure.

Claims

[1] Indoor unit of the air conditioner, characterized by that it includes: a base; an engine cover and an air guide frame, wherein the engine cover and the air guide frame are each connected to the base; wherein one is provided with a first plug-in opening between the engine cover and the air guide frame, and the other is provided with a first plug-in snap lock between the engine cover and the air guide frame, and wherein the first plug-in snap lock engages in the first plug-in opening. [2] Indoor unit of the air conditioning system according to claim 1, characterized by , that the first insertion opening extends along a front-to-back direction, wherein the insertion direction of the first snap fastener is a front-to-back direction. [3] Indoor unit of the air conditioning system according to claim 1, characterized by, that the first snap-fit ​​fastener comprises a fitting section and a guide section connected to each other, wherein in the extension direction of the first insertion opening the guide section is arranged on one side of the fitting section, and wherein the fitting section snaps into the first insertion opening, and wherein the cross-sectional area of ​​the guide section gradually increases in the direction close to the fitting section. [4] Indoor unit of the air conditioning system according to claim 1, characterized by that the first snap fastener forms an interference fit with the first insertion opening. [5] Indoor unit of the air conditioning system according to claim 4, characterized by, that the first snap-fit ​​fastener comprises a plurality of rib plates, wherein one end of each of the rib plates is connected in the width direction to one end of the other rib plates in the width direction, and wherein the other end of the rib plate is at least partially cantilevered in the width direction and is supported against the wall of the first snap-fit ​​opening. [6] Indoor unit of the air conditioning system according to claim 5, characterized by , that at least one rib plate is a curved plate, wherein the curved plate comprises a first section and a second section which are connected to each other, and wherein the second section is arranged in the width direction of the curved plate on one side of the first section, and wherein the second section forms an obtuse angle with the first section. [7] Indoor unit of the air conditioning system according to claim 6, characterized by, that the second section comprises a first width segment and a second width segment connected to each other, wherein the second width segment is arranged in the extension direction of the first plug-in opening on one side of the first width segment, and wherein the width of the second width segment is greater than the width of the first width segment; and wherein the first width segment snaps into the first plug-in opening, and wherein a side of the second width segment facing away from the first width segment and a side of the second width segment facing away from the first section are each connected to the engine cover or the air guide frame. [8] Indoor unit of the air conditioning system according to claim 1, characterized by, that the indoor unit of the air conditioner further comprises an evaporator bracket connected to the base, wherein one of the evaporator bracket and the air guide frame is provided with a second plug-in opening, and the other of the evaporator bracket and the air guide frame is provided with a second plug-in snap lock, and wherein the second plug-in snap lock engages in the second plug-in opening. [9] Indoor unit of the air conditioning system according to claim 8, characterized by , that the extension direction of the second plug opening is the same as the extension direction of the first plug opening, wherein the insertion direction of the second plug snap lock is the same as the insertion direction of the first plug snap lock. [10] Indoor unit of the air conditioning system according to claim 8, characterized by, that the first plug-in opening and the second plug-in opening each extend in a front-back direction, with the second plug-in opening and the first plug-in opening being arranged on two different sides of the air guide frame in a left-right direction. [11] Indoor unit of the air conditioning system according to any one of claims 1 to 10, characterized by , that one is provided with a third plug-in opening from the base and the air guide frame, and the other is provided with a third plug-in snap lock from the base and the air guide frame, wherein the third plug-in snap lock engages in the third plug-in opening. [12] Indoor unit of the air conditioning system according to claim 11, characterized by , that the extension direction of the third plug-in opening is the same as the extension direction of the first plug-in opening, wherein the insertion direction of the third plug-in snap lock is the same as the insertion direction of the first plug-in snap lock.

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