Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit, and belongs to the technical field of air conditioners. The indoor unit of the air conditioner comprises a shell, a first air inlet, a second air inlet and an air outlet, the heat exchanger is arranged in the shell and used for exchanging heat with air passing through the heat exchanger; the water pan is arranged below the heat exchanger and is used for collecting condensate water generated by the heat exchanger; the draining pump is used for draining condensate water in the water pan, a mounting frame is arranged on the draining pump, a second connecting hole is formed in the mounting frame, the second connecting hole corresponds to the first connecting hole, and the mounting frame is connected with the support only through a rubber pad; the rubber pad penetrates through the first connecting hole to be connected with the support, and the rubber pad is installed from the opening of the second connecting hole to be connected with the installation frame. The air conditioner indoor unit can effectively reduce transmission of vibration of the drainage pump to the shell and reduce noise, the rubber pad is used for completely replacing a bolt for fixing, and the installation efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner indoor unit. BACKGROUND

[0002] The air conditioner indoor unit will produce condensate water when operating in the refrigeration mode, so a drain pump is usually arranged in the air conditioner indoor unit to drain the condensate water out. The vibration generated by the drain pump when working will be transmitted to the shell panel through the support.

[0003] Since the air conditioner currently adopted is a large-area thin plate structure, which has the characteristics of small rigidity and fast response, when subjected to the vibration of the drain pump, the panel will produce forced vibration and radiate noise outward, which will affect the user's experience.

[0004] In addition, based on the fact that the drain pump is usually connected and fixed by using bolts passing through rubber pads, the assembly between the nut and the bolt has no limit, and if the nut is screwed too loosely, the drain pump will shake, and if the nut is screwed too tightly, the rubber pad will be compressed to weaken the damping effect, and the contact surface between the bolt and the panel still has the problem of vibration transmission. Invention content

[0005] The present application provides an air conditioner indoor unit, which can effectively reduce the transmission of the vibration of the drain pump to the shell and reduce noise; the rubber pad is used to completely replace the bolt for fixation, which greatly improves the installation efficiency.

[0006] An air conditioner indoor unit comprises: a shell, a support connected to the shell, a first connecting hole arranged on the support; a heat exchanger arranged in the shell and used for exchanging heat with air passing through the heat exchanger; a water collecting tray arranged below the heat exchanger and used for collecting condensate water generated by the heat exchanger; a drain pump used for draining the condensate water in the water collecting tray, an installation frame arranged on the drain pump, and a rubber pad connecting the installation frame and the support; the installation frame is provided with a second connecting hole corresponding to the first connecting hole and an opening communicating with the second connecting hole.

[0007] Part of the middle part of the rubber pad is clamped in the first connecting hole, and another part of the middle part of the rubber pad is clamped in the second connecting hole.

[0008] When assembled, the rubber pad is loaded into the second connecting hole from the opening, and the rubber pad is arranged in the first connecting hole.

[0009] In the air conditioner indoor unit of the present application, the installation frame on the drain pump is connected to the support only through the rubber pad, i.e. the drain pump and the support are completely isolated by the rubber pad, so that the connection between the drain pump and the support becomes elastic connection, which can effectively reduce the vibration transmission of the drain pump to the shell and reduce noise.

[0010] In addition, the fixing between the drainage pump and the support cancels the bolt, completely replaces it with the rubber pad, and only needs to be manually pressed to complete the assembly, saving the time of fastening the bolt.

[0011] In some embodiments, the rubber pad comprises: a first limiting part; a first connecting part connected with the first limiting part, the first connecting part being connected at the second connecting hole; a second limiting part connected to a side of the first connecting part away from the first limiting part, the second limiting part being clamped with the first limiting part on both sides of the mounting frame, for limiting the rubber pad from coming out of the mounting frame; a second connecting part connected to a side of the first limiting part away from the first connecting part, the second connecting part being connected at the first connecting hole; and a third limiting part connected to a side of the second connecting part away from the first limiting part, the third limiting part being clamped with the first limiting part on both sides of the support, for limiting the rubber pad from coming out of the support.

[0012] When assembling, the first connecting part is loaded into the second connecting hole from the opening, and the third limiting part passes through the first connecting hole by elastic deformation.

[0013] Based on the above technical solution, due to the limiting action of the first limiting part and the second limiting part, the rubber pad installed on the mounting frame will not come out, and due to the limiting action of the first limiting part and the third limiting part, the rubber pad installed on the support will not come out. The mounting frame on the drainage pump is only elastically connected to the support through the rubber pad, which greatly reduces the vibration transmission of the drainage pump to the shell and reduces the noise.

[0014] In some embodiments, the rubber pad further comprises a guide part, the guide part extending away from the second connecting part from the third limiting part, and the outer diameter of the guide part gradually decreases based on the extension direction, and the minimum outer diameter of the guide part is smaller than the inner diameter of the first connecting hole.

[0015] Based on the above technical solution, the guide part guides the third limiting part to elastically deform to gradually pass through the first connecting hole, avoiding the case that the outer diameter of the third limiting part is much larger than the first connecting hole of the support, and the third limiting part is not easy to pass through the first connecting hole.

[0016] In some embodiments, the rubber pad further comprises a lifting part provided at one end of the guide part away from the third limiting part, and the maximum outer diameter of the lifting part is smaller than the inner diameter of the first connecting hole; when assembling, the lifting part passes through the first connecting hole, and the rubber pad is lifted by the lifting part.

[0017] Based on the above technical solution, the installer only needs to gently lift the lifting part to quickly install the rubber pad on the support, thereby improving the installation efficiency.

[0018] In some embodiments, an end of the pulling part away from and / or close to the guide part is provided with a chamfer to guide the pulling part to pass through the first connecting hole.

[0019] Based on the above technical solution, the chamfer on the pulling part facilitates guiding the pulling part to pass through the first connecting hole more smoothly.

[0020] In some embodiments, the rubber pad further comprises an extension part connected between the pulling part and the guide part, the extension part being used to separate the pulling part from the guide part by a preset interval.

[0021] Based on the above technical solution, after the pulling part passes into the first connecting hole, the pulling part is supported to extend out from the side where the pulling part passes out of the first connecting hole based on the preset interval, which facilitates an installer to grasp the pulling part from the side where the pulling part passes out of the first connecting hole, thereby improving the assembly efficiency.

[0022] In some embodiments, an end of the first limiting part connected to the first connecting part is provided with a chamfer; and / or, an end of the second limiting part connected to the first connecting part is provided with a chamfer, which is used to guide the first connecting part to be connected into the second connecting hole from the opening.

[0023] In some embodiments, an edge of an end of the third limiting part connected to the second connecting part is in a right angle shape.

[0024] Based on the above technical solution, the end of the third limiting part close to the first connecting part is in a right angle shape, i.e., the edge is not provided with a chamfer, thereby improving the difficulty of the third limiting part to pass through the first connecting hole in the disengaging direction, and further improving the reliability of the rubber pad connected on the support.

[0025] In some embodiments, at least one stabilizing member is arranged in the rubber pad, two ends of the stabilizing member being connected to the third limiting part and the second limiting part respectively, to prevent the rubber pad from being deformed or broken.

[0026] Based on the above technical solution, the stabilizing member is connected to each part of the rubber pad, so that the rubber pad as a whole forms a stable support structure, which can provide additional support and limitation when the rubber pad is subjected to an external force, to prevent it from being deformed or broken too much.

[0027] In some embodiments, the plurality of stabilizing members are arranged in a circumferential direction.

[0028] Based on the above technical solution, the stabilizing members are arranged in a circumferential direction, so that the stabilizing members provide uniform support to the rubber pad, to ensure the uniformity of the force.

[0029] In some embodiments, the stabilizing member is a rope-shaped object such as a nylon rope.

[0030] Based on the above technical solution, the rope-like object is thin and long, which can reduce the space occupied by the stabilizing component in the formation of the rubber pad and will not excessively disrupt the continuity of the internal structure of the rubber pad.

[0031] In some embodiments, the outer diameter of the first connecting portion is greater than the maximum inner diameter of the second connecting hole, and the first connecting portion and the second connecting hole are interference-fitted.

[0032] Based on the above technical solution, the interference fit creates a tight connection between the first connecting part and the second connecting hole, which helps to resist external impacts and vibrations and ensures the stable operation of the air conditioner indoor unit.

[0033] In some embodiments, a sound insulation element is provided between the housing and the bracket to reduce vibration transmission and noise.

[0034] Based on the above technical solution, by absorbing some of the vibration energy, the sound insulation component reduces the vibration transmission between the shell and the support, thereby reducing noise and discomfort caused by vibration. Attached Figure Description

[0035] Figure 1 A perspective view of an indoor air conditioning unit according to some embodiments is shown;

[0036] Figure 2 A cross-sectional view of an indoor air conditioning unit according to some embodiments is shown;

[0037] Figure 3 An internal structural diagram of an air conditioner indoor unit according to some embodiments is shown;

[0038] Figure 4 A perspective view showing the connection between the drain pump and the housing in an indoor air conditioning unit according to some embodiments is shown;

[0039] Figure 5 A front view of the drain pump connected to the bracket in an indoor air conditioning unit according to some embodiments is shown;

[0040] Figure 6 A side view showing the connection between the drain pump and the bracket in an indoor air conditioning unit according to some embodiments is shown;

[0041] Figure 7 An enlarged view of a rubber gasket in an indoor unit of an air conditioner according to some embodiments is shown;

[0042] Figure 8 An air conditioner indoor unit according to some embodiments is shown. Figure 7 Sectional view of section AA;

[0043] Figure 9 An air conditioner indoor unit according to some embodiments is shown. Figure 7 BB section sectional view;

[0044] Figure 10 Fig. 1 shows a schematic diagram of the first connecting hole and the second connecting hole in the air conditioner indoor unit according to some embodiments;

[0045] Figure 11 Fig. 2 shows a schematic diagram of the assembly of the rubber pad into the second connecting hole in the air conditioner indoor unit according to some embodiments;

[0046] Figure 12 Fig. 3 shows a schematic diagram of the assembly of the rubber pad into the first connecting hole in the air conditioner indoor unit according to some embodiments;

[0047] Figure 13 Fig. 4 shows a perspective view of the connection of the drainage pump and the shell in the prior art air conditioner indoor unit.

[0048] In the above figures, 10, shell; 11, air inlet; 12, air outlet; 13, middle partition; 14, support; 141, first connecting hole; 15, cover plate; 16, nut; 17, bolt; 20, fan; 30, heat exchanger; 40, water pan; 50, drainage pump; 51, mounting bracket; 511, second connecting hole; 512, opening; 60, drainage pipe joint; 70, rubber pad; 71, first limiting part; 72, third limiting part; 73, second limiting part; 74, first connecting part; 741, first groove; 75, second connecting part; 751, second groove; 76, guide part; 77, extension part; 78, pulling part; 80, stabilizing part; 90, soundproof part. DETAILED DESCRIPTION

[0049] For the purpose of making the purpose and implementation of the present application more clear, the exemplary implementation of the present application will be described clearly and completely in the following with reference to the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0050] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship 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 do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0051] The terms "first", "second", "third", etc. are used only for the purpose of description and do not indicate or imply relative importance or a specific number of the technical features indicated thereby. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified and limited.

[0052] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of 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.

[0053] The air conditioner in the present application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been adjusted and heat exchanged.

[0054] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0055] The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0056] The outdoor unit of the air conditioner refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0057] The indoor heat exchanger and the outdoor heat exchanger are used as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0058] The air conditioner according to the embodiment of the present application can be an all-in-one machine in which the indoor unit and the outdoor unit are integrated in one housing, or can be a split machine in which the indoor unit and the outdoor unit are independent and installed separately.

[0059] The present application is described below by way of example with reference to an indoor unit in a separate machine and a ducted type air conditioner with the indoor unit installed in a ceiling:

[0060] Referring to FIGS. 1 to Figures 1 to 3 The air conditioner indoor unit according to the embodiment of the present application includes a housing 10 in which a plurality of components constituting a refrigeration cycle are installed.

[0061] The housing 10 has a rectangular parallelepiped shape, and among a set of opposite sides of the housing 10, one side is provided with an air inlet 11 and the other side is provided with an air outlet 12. Indoor air is introduced into the housing 10 through the air inlet 11 and is supplied to an indoor space through the air outlet 12.

[0062] In an example of an installation scenario, the air inlet 11 can be faced with an air inlet grille of a ceiling decoration, whereby indoor air can flow into the housing 10 through the air inlet grille and the air inlet 11, and the outside of the air outlet 12 can be provided with an air outlet flange that can be extended to the indoor space by a connection duct.

[0063] Referring specifically to Figure 2 A partition 13 can be provided in the housing 10 to divide the space in the housing 10 into an air inlet chamber and an air outlet chamber, wherein the air inlet chamber is in communication with the air inlet 11 and the air outlet chamber is in communication with the air outlet 12.

[0064] The air conditioner indoor unit can include a fan 20 provided in the air inlet chamber, which can be a centrifugal fan, and the air flow at the air discharge end of the fan 20 blows toward the air outlet chamber through the partition 13.

[0065] The air conditioner indoor unit can include a heat exchanger 30 provided in the air outlet chamber, which is used to absorb heat from or transfer heat to the air introduced into the housing 10.

[0066] Under the action of the fan 20, indoor air enters the air inlet chamber from the air inlet 11, then flows into the air outlet chamber through the fan 20, and then flows to the air outlet 12 after heat exchange through the heat exchanger 30.

[0067] During the refrigeration process, the indoor-side refrigerant is in a low-temperature state, and the heat exchange between the low-temperature refrigerant and the indoor air through the heat exchanger 30 in the indoor side causes the water in the air to condense, and the condensed water adheres to the surface of the heat exchanger 30, and the condensed water accumulates and drips into the water pan 40 below.

[0068] The water pan 40 can be connected to a drain pipe connected to the outside of the housing 10, and the condensed water is drained to the outside of the housing 10.

[0069] Referring specifically to Figure 3The air conditioner indoor unit can include a drain pump 50, which can be arranged above the water pan 40 and used to drain the condensed water in the water pan 40.

[0070] The water suction end of the drain pump 50 can correspond to the drain groove of the water pan 40, and the water discharge end of the drain pump 50 can be in communication with a drain pipe joint 60 connected to the shell 10. The drain pipe joint 60 can be connected to an external drain pipe. When the drain pump 50 is working, the condensed water can be discharged out of the shell 10 through the drain pipe.

[0071] With reference to Figures 4 to 6 The drain pump 50 is connected with a mounting bracket 51, and the mounting bracket 51 is connected with the support 14 connected to the shell 10, so as to realize the installation of the drain pump 50 in the indoor unit.

[0072] Specifically, the support 14 is L-shaped, and the vertical side wall thereof is connected to the cover plate 15 of the shell 10, and the horizontal side wall thereof is connected with the mounting bracket 51.

[0073] When the drain pump 50 is working, the drain pump 50 will generate a large vibration due to the high-speed rotation of the motor rotor in the drain pump 50. The mounting bracket 51 is usually fixed with the support 14 by fasteners such as screws or bolts, which can be regarded as rigid connection, so the vibration of the drain pump 50 can be directly transmitted to the whole machine shell 10. Most of the current indoor unit shells 10 are large-area thin plate structures, which have the characteristics of small rigidity and fast response, and are prone to cause noise problems when excited by the vibration of the drain pump 50.

[0074] With reference to Figure 13 In the prior art, the drain pump 50 and the mounting bracket 51 are fixed as a whole by the bolts 17. The mounting bracket 51 is provided with a mounting groove for mounting the rubber pad 70. The bolts 17 pass through the rubber pad 70 and the support 14, and are connected with the nuts 16 on the support 14, so as to fix the drain pump 50, the mounting bracket 51 and the rubber pad 70.

[0075] At present, the vibration of the drain pump 50 is attenuated by the rubber pad 70, but the bolts 17 and the support 14 are still in direct contact and hard connection, which has no damping effect, so the vibration can be transmitted to the support 14 through the bolts 17, and then transmitted to the cover plate 15 through the support 14.

[0076] In addition, the assembly between the nuts 16 and the bolts 17 has no limit, and if the nuts 16 are screwed too loosely, the drain pump 50 will shake, and if the nuts 16 are screwed too tightly, the rubber pad 70 will be compressed, so that the damping effect of the rubber pad 70 is weakened.

[0077] In order to solve the above technical problems, the vibration transmission path of the drain pump 50 is improved.

[0078] With reference toFigures 4 to 12 The support 14 is provided with a first connecting hole 141. The mounting bracket 51 is provided with a second connecting hole 511 corresponding to the first connecting hole 141.

[0079] The first connecting hole 141 penetrates the through hole of the support 14. The second connecting hole 511 is a through hole penetrating the mounting bracket 51.

[0080] The mounting bracket 51 is further provided with an opening 512 extending from the second connecting hole 511 to the outer side of the mounting bracket 51. The opening 512 is a notch on the mounting bracket 51 in communication with the second connecting hole 511.

[0081] A part of the middle portion of the rubber pad 70 is clamped at the first connecting hole 141 of the support 14, and another part of the middle portion of the rubber pad 70 is clamped at the second connecting hole 511 of the mounting bracket 51.

[0082] During assembly, the rubber pad 70 passes through the first connecting hole 141 on the support 14 in the axial direction (which is the axial direction of the first connecting hole 141). The rubber pad 70 is installed in the second connecting hole 511 on the mounting bracket 51 in the radial direction (which is the radial direction of the second connecting hole 511) through the opening 512, so as to be connected with the support 14 and the mounting bracket 51 respectively.

[0083] The support 14 and the mounting bracket 51 are connected only through the rubber pad 70, without using fasteners such as screws or bolts therebetween, so that a soft connection between the support 14 and the mounting bracket 51 is truly realized. The transmission path of the vibration of the drainage pump 50 only passes through the rubber pad 70, so that the damping effect is better, and the vibration noise problem of the drainage pump 50 can be effectively solved. There is no problem of poor consistency caused by loose or tight fastening bolts.

[0084] In addition, only manual pressing of the rubber pad 70 is needed between the drainage pump 50 and the support 14 to complete the assembly, so that the time for fastening bolts is saved, and the assembly efficiency is improved.

[0085] In some embodiments, with reference to Figures 6 to 12 The rubber pad 70 includes a first limiting portion 71 clamped between the support 14 and the mounting bracket 51, so as to separate the support 14 and the mounting bracket 51, and avoid direct vibration transmission of the mounting bracket 51 to the support 14.

[0086] The rubber pad 70 includes a second limiting portion 73 provided on one side of the first limiting portion 71, and the mounting bracket 51 is clamped between the second limiting portion 73 and the first limiting portion 71. The second limiting portion 73 and the first limiting portion 71 can play a limiting installation role, so as to avoid the rubber pad 70 from being detached from the mounting bracket 51.

[0087] The rubber pad 70 comprises a third limiting portion 72, which is located on the opposite side of the first limiting portion 71 respectively with the second limiting portion 73, and the third limiting portion 72 and the first limiting portion 71 are clamped with the bracket 14. The third limiting portion 72 and the first limiting portion 71 can play the mounting limiting role, so as to avoid the rubber pad 70 from being detached from the bracket 14.

[0088] The rubber pad 70 comprises a first connecting portion 74, which is connected between the first limiting portion 71 and the second limiting portion 73. The first connecting portion 74 can be loaded into the second connecting hole 511 from the opening 512.

[0089] The outer diameter of the first connecting portion 74 is smaller than that of the first limiting portion 71 and the second limiting portion 73, and a step is formed between the first connecting portion 74 and the first limiting portion 71 and the second limiting portion 73, so that a first groove 741 is formed on the outer circumferential side of the first connecting portion 74, and the mounting bracket 51 can be clamped at the first groove 741.

[0090] The rubber pad 70 comprises a second connecting portion 75, which is connected between the first limiting portion 71 and the third limiting portion 72. The outer diameter of the second connecting portion 75 is smaller than that of the third limiting portion 72 to form a step, and the third limiting portion 72 is elastically deformed to pass through the first connecting hole 141, and the step is used to abut against the bracket 14 to limit the third limiting portion 72 from passing through the first connecting hole 141 again and being detached from the bracket 14.

[0091] The outer diameter of the second connecting portion 75 is smaller than that of the first limiting portion 71 and the third limiting portion 72, and a step is formed between the second connecting portion 75 and the first limiting portion 71 and the third limiting portion 72, so that a second groove 751 is formed on the outer circumferential side of the second connecting portion 75, and the bracket 14 can be clamped at the second groove 751 after the third limiting portion 72 is elastically deformed to pass through the first connecting hole 141.

[0092] It should be noted that after the rubber pad 70 is combined with the drainage pump 50, if a similar structure of the second connecting hole 511 is also used on the bracket 14, that is, an opening is arranged on the bracket 14 and communicates with the first connecting hole 141. During assembly, the rubber pad 70 needs to be moved away from the mounting bracket 51 and then loaded into the first connecting hole 141 from the opening towards the mounting bracket 51. Such operation is likely to cause the rubber pad 70 to fall off from the already assembled drainage pump 50.

[0093] In view of the above problems during assembly, the assembly mode of the second connecting portion 75 and the first connecting hole 141 of the bracket 14 is that the third limiting portion 72 is assembled by being elastically deformed to pass through the first connecting hole 141.

[0094] Based on the difference between the two assembly directions, the two do not affect each other during assembly, so as to improve the assembly efficiency.

[0095] The outer diameters of the first limiting portion 71, the third limiting portion 72, and the second limiting portion 73 can be the same to simplify the manufacturing mold of the rubber pad 70 and reduce the production cost.

[0096] In some embodiments, referring to Figure 7 and Figure 12 , the rubber pad 70 further comprises a guiding portion 76 extending from the third limiting portion 72 away from the second connecting portion 75, and the outer diameter of the guiding portion 76 gradually decreases based on the extending direction, for guiding the third limiting portion 72 to elastically deform to gradually pass through the first connecting hole 141.

[0097] The transverse and / or longitudinal cross section of the guiding portion 76 is a tapered surface, and the outer diameter of the guiding portion 76 gradually decreases from the third limiting portion 72 away from the second connecting portion 75. The minimum outer diameter of the guiding portion 76 is smaller than the inner diameter of the first connecting hole 141, and the maximum outer diameter of the guiding portion 76 is not greater than the outer diameter of the third limiting portion 72.

[0098] During assembly, the minimum outer diameter of the guiding portion 76 is first passed through the first connecting hole 141 of the bracket 14. Even if the outer diameter of the guiding portion 76 gradually increases to be greater than the inner diameter of the first connecting hole 141, the guiding portion 76 can guide the rubber pad 70 to elastically deform to pass through the first connecting hole 141, and restore to the original state after the third limiting portion 72 completely passes through the first connecting hole 141.

[0099] The guiding portion 76 is used to guide the rubber pad 70 to gradually elastically deform to pass through the first connecting hole 141, avoiding the situation that the outer diameter of the third limiting portion 72 is much greater than the inner diameter of the first connecting hole 141, which is difficult to pass through the first connecting hole 141.

[0100] In some embodiments, referring to Figure 7 and Figure 12 , the rubber pad 70 further comprises a pulling portion 78 arranged on the side of the guiding portion 76 away from the third limiting portion 72.

[0101] The maximum outer diameter of the pulling portion 78 is smaller than the inner diameter of the first connecting hole 141, and the pulling portion 78 is used to pull the rubber pad 70 after passing through the first connecting hole 141.

[0102] The pulling portion 78 can serve as a convenient pulling point. The installer only needs to pull the pulling portion 78, and the rubber pad 70 can be quickly installed on the bracket 14, thereby improving the installation efficiency.

[0103] In addition, the pulling portion 78 can also serve as a reference point for preliminary positioning during the installation of the rubber pad 70 through the first connecting hole 141. By passing the pulling portion 78 through the first connecting hole 141, the relative position of the mounting frame 51 and the support 14 can be preliminarily determined, thereby simplifying the installation process and improving the installation efficiency.

[0104] After the pulling portion 78 passes through the first connecting hole 141, a temporary anti-falling structure is formed, which facilitates the installation personnel to grasp. Even if the rubber pad 70 falls off before being completely fixed, the installation personnel can quickly grasp the pulling portion 78 to prevent the mounting frame 51 from accidentally falling off, thereby increasing the safety of the installation process.

[0105] In some embodiments, with reference to Figure 7 , the end of the pulling portion 78 away from and / or close to the guide portion 76 is provided with a chamfer to guide the pulling portion 78 to pass through the first connecting hole 141.

[0106] The end of the pulling portion 78 away from the guide portion 76 is provided with a top chamfer, and / or the end close to the guide portion 76 is also provided with a connecting chamfer. The design of these two chamfers is to guide the pulling portion 78 to pass through the first connecting hole 141 more smoothly.

[0107] The chamfer provided at the end of the pulling portion 78 away from the guide portion 76 is a top chamfer. The function of this chamfer is to provide a smooth transition when the pulling portion 78 starts to be installed into the first connecting hole 141, thereby reducing the friction and resistance with the edge of the first connecting hole 141, and enabling the pulling portion 78 to pass through the first connecting hole 141 more easily.

[0108] The chamfer provided at the end of the pulling portion 78 close to the guide portion 76 is located at the connection between the pulling portion 78 and the guide portion 76, which is a connecting chamfer. This chamfer is used to ensure that the guide portion 76 can smoothly follow the movement of the pulling portion 78 during the process of the pulling portion 78 passing through the first connecting hole 141, thereby avoiding the situation of jamming or damage caused by sudden angle change during assembly.

[0109] In some embodiments, with reference to Figure 7 , the rubber pad 70 further comprises an extension portion 77, which is arranged between the pulling portion 78 and the guide portion 76, and the two ends of the extension portion 77 are connected with the pulling portion 78 and the guide portion 76 respectively. The extension portion 77 is used to separate the pulling portion 78 and the guide portion 76 by a predetermined distance.

[0110] The outer diameter of the extension portion 77 is equal to the minimum outer diameter of the guide portion 76, and the outer diameter of the extension portion 77 is smaller than the outer diameter of the pulling portion 78.

[0111] The extension part 77 is used to support the pulling part 78 to extend from the side of the first connecting hole 141 after the pulling part 78 is inserted into the first connecting hole 141 based on a preset interval. This facilitates the installation personnel to grasp the pulling part 78 from the side of the first connecting hole 141, and then pull the guiding part 76 to continue to pass through the first connecting hole 141 through the pulling part 78, thereby improving the assembly efficiency.

[0112] It should be noted that the preset interval is set based on the actual situation, and the preset interval is at least not less than the axial length of the first connecting hole 141, that is, the hole depth.

[0113] In some embodiments, referring to Figure 7 , a chamfer is provided between the third limiting part 72 and the guiding part 76 to guide the third limiting part 72 to pass through the first connecting hole 141.

[0114] During the process of the rubber pad 70 passing through the first connecting hole 141, the third limiting part 72 needs to be elastically deformed to adapt to the size of the first connecting hole 141. At this time, the chamfer between the third limiting part 72 and the guiding part 76 plays a guiding role, so that the third limiting part 72 can be more smoothly transitioned during deformation, reducing the force required for deformation and reducing the potential damage to the material of the rubber pad 70.

[0115] In addition, the chamfer design between the third limiting part 72 and the guiding part 76 also helps to reduce the stress concentration phenomenon. At the edge of the rubber pad 70 in contact with the first connecting hole 141, if there is no chamfer, the stress may be concentrated in these sharp corners, causing the rubber pad 70 material to be more easily damaged or aged. The presence of the chamfer can disperse these stresses, improving the durability and reliability of the rubber pad 70.

[0116] The chamfer design between the third limiting part 72 and the guiding part 76 significantly optimizes the installation process of the rubber pad 70. It reduces the resistance during installation, reduces the installation time, and reduces the requirements for installation tools.

[0117] In some embodiments, referring to Figure 7 , the lower end (the end connected with the first connecting part 74) of the first limiting part 71 is provided with a chamfer; and / or, the upper end (the end connected with the first connecting part 74) of the second limiting part 73 is provided with a chamfer, for guiding the first connecting part 74 to be inserted into the opening 512 to connect the second connecting hole 511.

[0118] When the lower end of the first limiting part 71 is provided with a chamfer, the edge of the first limiting part 71 becomes smooth, reducing the frictional resistance when contacting the mounting frame 51.

[0119] The chamfer can guide the first connecting part 74 to enter along a predetermined path smoothly and avoid assembly difficulty caused by excessive friction during the process of inserting the first connecting part 74 from the opening 512 into the second connecting hole 511.

[0120] The chamfer at the upper end of the second limiting part 73 can also guide the insertion of the first connecting part 74 and reduce friction.

[0121] The chamfer at the upper end of the second limiting part 73 can guide the first connecting part 74 to move along a predetermined path during the insertion process and reduce the friction between the edge of the second limiting part 73 and the mounting frame 51, which helps to ensure that the first connecting part 74 can be accurately inserted into the specified position of the second connecting hole 511 and maintain a stable connection state.

[0122] Optimizing the insertion process through chamfering can help reduce structural stress concentration caused by improper insertion and improve the overall structural strength.

[0123] In some embodiments, the lower end (the end connected to the second connecting part 75) of the third limiting part 72 has no chamfer and is in a straight angle shape.

[0124] When the penetrating object is penetrated into the hole, the chamfer (inverted straight angle or inverted round angle) provided at the edge of the penetrating object has a guiding effect, that is, the provision of the chamfer facilitates the penetration of the penetrating object through the hole. In the embodiments of the present application, the lower end of the third limiting part 72 has no chamfer, which can increase the difficulty of the third limiting part 72 entering the first connecting hole 141 downward and prevent the rubber pad 70 from being detached from the first connecting hole 141 of the support 14 due to vibration or gravity.

[0125] In some embodiments, referring to Figure 8 and Figure 9 The rubber pad 70 is provided with a stabilizing piece 80, which can function as a fixing part to prevent the rubber pad 70 from deforming or breaking.

[0126] The stabilizing piece 80 extends in the axial direction of the rubber pad 70. One end of the stabilizing piece 80 is connected to the third limiting part 72, the guide part 76, the extension part 77 or the lifting part 78 of the rubber pad 70. The other end of the stabilizing piece 80 is connected to the second limiting part 73 of the rubber pad 70.

[0127] The stabilizing piece 80 can be pre-embedded in the rubber material when the rubber pad 70 is formed. The stabilizing piece 80 is a material that is elongated and has a certain strength. The stabilizing piece 80 can be a rope such as a nylon rope or a steel wire rope.

[0128] The rubber pad 70 is used to reduce vibration transmission and weaken noise between the support 14 and the mounting frame 51. The third limiting part 72 and the second limiting part 73 are matched with the first limiting part 71 respectively, so as to limit the support 14 and the mounting frame 51 respectively. However, due to the elasticity and plasticity of the rubber material, the rubber pad 70 may be deformed or even broken after a long time of use or under external force, thereby affecting its performance. Since the third limiting part 72 and the second limiting part 73 are directly in contact with the support 14 and the mounting frame 51 respectively, the two are prone to force deformation or breakage.

[0129] To solve the above problems, in the rubber pad 70, the two ends of the stabilizing piece 80 are connected with the third limiting part 72 and the second limiting part 73 respectively, that is, one end of the stabilizing piece 80 is connected with the third limiting part 72, and the other end sequentially passes through the second connecting part 75, the first limiting part 71, the first connecting part 74, and is connected with the second limiting part 73.

[0130] This connection mode of connecting each part in series makes the rubber pad 70 form a stable support structure as a whole, which can provide additional support and limitation when the rubber pad 70 is subjected to external force, preventing excessive deformation or breakage.

[0131] When the rubber pad 70 is subjected to extrusion, stretching or other external force, the stabilizing piece 80 can transmit these forces and disperse them to other parts of the rubber pad 70, thereby reducing the stress on a single part. At the same time, the stabilizing piece 80 can also limit the movement or deformation of the rubber pad 70 in a certain direction, maintaining the overall stability and shape of the rubber pad 70.

[0132] Through the support and limitation of the stabilizing piece 80, the deformation amount of the rubber pad 70 under stress can be significantly reduced, and its original shape and performance can be maintained. In addition, the design of the stabilizing piece 80 helps to prolong the service life of the rubber pad 70, reduces the replacement frequency and maintenance cost caused by deformation or breakage.

[0133] Reference Figure 9 It should be noted that the number of stabilizing pieces 80 is at least one, and the specific number should be set according to the actual situation. Multiple stabilizing pieces 80 are arranged around the axis of the rubber pad 70 in the circumferential direction, which can improve the uniformity of stress and make the overall stability of the rubber pad 70 stronger.

[0134] In some embodiments, with reference to Figure 11 and Figure 12 The outer diameter of the first connecting part 74 is greater than the maximum inner diameter of the second connecting hole 511, and the first connecting part 74 is in interference fit with the second connecting hole 511.

[0135] The outer diameter of the first connecting portion 74 is designed to be larger than the maximum inner diameter of the second connecting hole 511. During assembly, the first connecting portion 74 needs to overcome a certain resistance to be completely inserted into the second connecting hole 511. The resistance comes from the interference between the first connecting portion 74 and the second connecting hole 511, that is, the difference between the outer diameter of the first connecting portion 74 and the inner diameter of the second connecting hole 511.

[0136] When the first connecting portion 74 is forcibly inserted into the second connecting hole 511, due to the existence of interference, the rubber of the first connecting portion 74 will undergo a certain elastic deformation, thereby tightly filling the internal space of the second connecting hole 511.

[0137] When the first connecting portion 74 is completely inserted into the second connecting hole 511, an interference fit is formed between the two. The interference fit not only provides strong connection force, but also ensures the sealing of the second connecting hole 511, preventing air, moisture or other impurities from entering the connection between the two.

[0138] The interference fit forms a tight connection between the first connecting portion 74 and the second connecting hole 511, significantly improving the strength of the second connecting hole 511. This strong connection helps to resist external impact and vibration, ensuring the stable operation of the air conditioner indoor unit.

[0139] In addition, although the interference fit needs to overcome a certain resistance during assembly, once the first connecting portion 74 is completely inserted into the second connecting hole 511, no additional fasteners or adhesives are needed to maintain the connection. This simplifies the assembly process and reduces production costs.

[0140] The interference fit connection helps to reduce the loosening and falling off phenomenon between the first connecting portion 74 and the second connecting hole 511, improving the reliability and durability of the product. This helps to reduce the failure rate and maintenance cost of the product, prolonging the service life of the product.

[0141] In some embodiments, with reference to Figure 4 and Figure 6 , a sound insulation piece 90 is provided between the housing 10 and the bracket 14 to reduce vibration transmission and reduce noise.

[0142] Long-term exposure to high noise and vibration environments can cause damage to the internal mechanical components of the air conditioner indoor unit. The sound insulation piece 90 is provided between the housing 10 and the bracket 14, and the sound insulation piece 90 is used to reduce such damage, thereby prolonging the service life of the product and reducing maintenance costs.

[0143] The sound insulation piece 90 is made of materials with high sound absorption and insulation performance, including but not limited to foamed plastic, rubber, mineral wool or polyester fiber, etc. These materials have a porous structure that can effectively absorb and dissipate sound wave energy, thereby reducing the propagation of noise.

[0144] The sound insulation piece 90 can absorb part of the vibration energy and convert it into heat energy or other forms of energy to dissipate. At the same time, the porous structure of the sound insulation piece 90 can also effectively scatter and reflect sound waves, further reducing the propagation of noise.

[0145] By absorbing and dissipating sound wave energy, the sound insulation piece 90 effectively reduces the propagation of noise, significantly reducing the noise level when the air conditioner indoor unit is running, and providing a more quiet and comfortable use environment for the user.

[0146] By absorbing part of the vibration energy, the sound insulation piece 90 reduces the vibration transmission between the shell 10 and the support 14, thereby reducing the noise and discomfort caused by vibration.

[0147] When the air conditioner indoor unit is running, the drain pump 50 will generate vibration and noise. Although the rubber pad 70 has weakened most of the vibration and noise, there will inevitably be some vibration and noise transmitted to the shell 10 through the support 14, and then possibly transmitted to the building structure or other rooms.

[0148] By setting the sound insulation piece 90 between the shell 10 and the support 14, the residual part of the vibration and noise can be further weakened during transmission, thereby achieving the technical effect of completely reducing vibration and noise.

[0149] As described above, in the air conditioner indoor unit according to the present application, the mounting bracket 51 and the support 14 are only connected by the rubber pad 70, and the mounting bracket 51 and the support 14 are completely isolated, realizing the completely flexible connection between the drain pump 50 and the support 14, and the vibration of the drain pump 50 is greatly weakened by the consumption of the rubber pad 70, thereby solving the problem of vibration and noise caused by the drain pump 50.

[0150] In addition, the first connecting portion 74 is assembled with the mounting bracket 51 in a horizontal direction from the opening 512 to the second connecting hole 511. While the second connecting portion 75 is assembled with the support 14 in a direction that the third limiting portion 72 passes through the first connecting hole 141. The two assembly directions are different, so they do not affect each other during assembly, thereby improving the assembly efficiency.

[0151] In addition, the rubber pad 70 also includes a guide portion 76, which extends away from the second connecting portion 75 from the third limiting portion 72, and the outer diameter of the guide portion 76 gradually decreases based on the extension direction.

[0152] The guide portion 76 is used to guide the gradual elastic deformation of the rubber pad 70 to fit the first connecting hole 141 of the support 14. Avoiding the situation that the outer diameter of the third limiting portion 72 is much larger than the inner diameter of the first connecting hole 141 of the support 14, which is difficult to pass through the first connecting hole 141.

[0153] In addition, the rubber pad 70 further comprises a pulling portion 78, which is arranged at one end of the guiding portion 76 away from the third limiting portion 72. The maximum outer diameter of the pulling portion 78 is smaller than the inner diameter of the first connecting hole 141.

[0154] The pulling portion 78 can be used as a convenient pulling point, so that the operator can pull the rubber pad 70 upwards by acting on the pulling portion 78, so that the third limiting portion 72 of the rubber pad 70 passes through the first connecting hole 141; and the pulling portion 78 can also be used as a preliminary positioning reference point.

[0155] In addition, at least one stabilizing member 80 is arranged in the rubber pad 70, which can provide additional support and limitation when the rubber pad 70 is subjected to external force, so as to prevent excessive deformation or breakage of the rubber pad 70.

[0156] In addition, a sound insulation member 90 is arranged between the shell 10 and the support 14, which is used to further reduce vibration transmission and reduce noise.

[0157] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0158] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. According to the above teaching, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The outer casing has a bracket connected to it, and the bracket has a first connection hole; A heat exchanger, located inside the housing, is used to exchange heat with the air passing through it; A water collection tray, located below the heat exchanger, is used to collect the condensate produced by the heat exchanger; A drain pump is used to drain the condensate in the water receiving pan. The drain pump is equipped with a mounting bracket, and the mounting bracket and the support are connected only by a rubber pad. The mounting bracket is equipped with a second connection hole and an opening communicating with the second connection hole. The second connection hole corresponds to the first connection hole. The rubber pad includes: First limiting part; The first connecting part is connected to the first limiting part, and the first connecting part is connected to the second connecting hole; The second limiting part is connected to the side of the first connecting part away from the first limiting part. The second limiting part and the first limiting part are sandwiched on both sides of the mounting frame to restrict the rubber pad from coming out of the mounting frame. The second connecting part is connected to the side of the first limiting part away from the first connecting part, and the second connecting part is connected to the first connecting hole; The third limiting part is connected to the side of the second connecting part away from the first limiting part. The third limiting part and the first limiting part are sandwiched between the two sides of the bracket to prevent the rubber pad from coming out of the bracket. During assembly, the first connecting part is inserted into the second connecting hole from the opening, and the third limiting part passes through the first connecting hole through elastic deformation.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The rubber pad also includes: The guide portion extends from the third limiting portion in a direction away from the second connecting portion, and the outer diameter of the guide portion gradually decreases based on the extension direction, and the minimum outer diameter of the guide portion is smaller than the inner diameter of the first connecting hole.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The rubber pad also includes: A lifting portion is provided on the side of the guide portion away from the third limiting portion, and the maximum outer diameter of the lifting portion is smaller than the inner diameter of the first connecting hole; During assembly, the lifting part passes through the first connecting hole and is used to lift the rubber pad.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The rubber pad also includes: An extension is connected between the lifting part and the guide part, and the extension is used to separate the lifting part and the guide part by a predetermined distance.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The edge of the end of the third limiting part that connects to the second connecting part is right-angled.

6. The air conditioning indoor unit according to any one of claims 1 to 5, characterized in that, The rubber pad is provided with at least one stabilizing member, and the two ends of the stabilizing member are respectively connected to the third limiting part and the second limiting part to prevent the rubber pad from deforming or breaking.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The multiple stabilizers are arranged in a circumferential direction.

8. The indoor unit of the air conditioner according to claim 6, characterized in that, The stabilizing component is a nylon rope.

9. The indoor unit of an air conditioner according to any one of claims 1 to 5, characterized in that, A sound insulation component is provided between the outer shell and the bracket.

10. An indoor unit for an air conditioner, characterized in that, include: The outer casing has a bracket connected to it, and the bracket has a first connection hole; A heat exchanger, located inside the housing, is used to exchange heat with the air passing through it; A water collection tray, located below the heat exchanger, is used to collect the condensate produced by the heat exchanger; A drain pump is used to drain the condensate from the drip tray. The drain pump is equipped with a mounting bracket, and the mounting bracket and the support are connected only by a rubber gasket. The mounting bracket is equipped with: The second connecting hole corresponds to the first connecting hole; An opening that communicates with the second connecting hole; Wherein, a portion of the middle part of the rubber pad is engaged at the first connecting hole, and another portion of the middle part of the rubber pad is engaged at the second connecting hole; During assembly, the rubber pad is inserted into the second connecting hole from the opening, and the rubber pad is installed through the first connecting hole.

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