Water pump assembly and household appliance

Abstract

The utility model discloses a water pump assembly and a household appliance, and belongs to the technical field of electrical equipment. The water pump assembly comprises an anti-vibration pad, a pump body and a sound insulation cover, a first mounting groove is formed in the anti-vibration pad, a through hole communicated with the first mounting groove is formed in the anti-vibration pad, and the through hole is formed in the side, away from a groove opening of the first mounting groove, of the anti-vibration pad; the pump body penetrates through the notch, at least part of the pump body is located in the first mounting groove, and the pump body is provided with a water inlet nozzle penetrating out of the through hole; the sound insulation cover is arranged on the side, away from the water inlet nozzle, of the pump body, the periphery of the anti-vibration pad is sleeved with the sound insulation cover, and a cavity used for containing the pump body is defined by the sound insulation cover and the anti-vibration pad. According to the utility model, the pump body is prevented from directly colliding with the chassis, and the sound insulation cover is separated from the pump body through the anti-vibration pad, so that the pump body is prevented from colliding with the sound insulation cover to generate collision noise, and the generation of the collision noise is reduced. In addition, electromagnetic noise generated by the motor can be limited in the cavity, and transmission of the electromagnetic noise is blocked.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a water pump assembly and a household appliance. Background Technology

[0002] In related technologies, for household appliances such as air conditioners and heat pump equipment, a common practice to solve the problem of condensate accumulation in their chassis is to install a water pump on the chassis, drawing in condensate through an inlet at the bottom of the pump and then draining it through an outlet pipe. However, during the operation of the water pump, it not only experiences mechanical collisions with the chassis, generating collision noise, but its internal motor also produces electromagnetic noise. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a water pump assembly that can reduce the generation of impact noise and block the propagation of electromagnetic noise.

[0004] This utility model also proposes a household appliance that includes the above-mentioned water pump assembly.

[0005] A water pump assembly according to a first aspect of the present invention includes: a vibration damping pad, a pump body, and a sound insulation cover. The vibration damping pad has a first mounting groove and a through hole communicating with the first mounting groove. The through hole is located on the side of the vibration damping pad away from the opening of the first mounting groove. The pump body passes through the opening of the groove, and at least a portion of the pump body is located within the first mounting groove. The pump body has a water inlet extending out of the through hole. The sound insulation cover is located on the side of the pump body away from the water inlet. The sound insulation cover is fitted around the outer periphery of the vibration damping pad and defines a chamber for accommodating the pump body.

[0006] The water pump assembly according to the embodiments of the present utility model has at least the following beneficial effects:

[0007] The water pump assembly of this utility model has interconnected slots and a first mounting groove on the vibration damping pad, allowing the pump body to pass through the slots and at least part of the pump body to be located in the first mounting groove. When the pump body is running, the vibration damping pad can buffer the vibration of the pump body, avoiding direct collision between the pump body and the chassis, thereby reducing the generation of collision noise. Furthermore, by setting a sound insulation cover on the side of the pump body away from the water inlet and fitting the sound insulation cover around the outer periphery of the vibration damping pad, the two together define a chamber. This not only confines the electromagnetic noise generated by the motor within the chamber, reducing the risk of electromagnetic noise propagating outside the chamber and blocking the propagation of electromagnetic noise, but also separates the sound insulation cover from the pump body, preventing collision noise caused by the pump body colliding with the sound insulation cover. This effectively reduces the overall noise level of the water pump assembly and improves the user experience.

[0008] According to some embodiments of the present invention, the pump body includes a main body and the inlet nozzle connected to each other. The main body and the inlet nozzle are arranged sequentially along the groove towards the through hole. The main body is located in the first mounting groove. Along the axial direction of the pump body, the height of the pump body is H, and the depth of the first mounting groove is L, satisfying: L≥H / 3.

[0009] According to some embodiments of this utility model, the vibration damping pad is made of a flexible material, the first mounting groove matches the pump body, the entire main body is located in the first mounting groove, the outer peripheral wall of the main body is attached to the inner wall of the first mounting groove, and the sound insulation cover is spaced apart from the side of the pump body away from the water inlet.

[0010] According to some embodiments of the present invention, the soundproof cover includes a cover body and a top cover. The cover body is arranged around the outer peripheral wall of the vibration damping pad. One end of the cover body is sleeved on the outer periphery of the vibration damping pad, and the top cover is placed on the other end of the cover body. The top cover is spaced apart from the pump body.

[0011] According to some embodiments of the present invention, the outer peripheral wall of the cover includes an arcuate segment and a planar segment arranged sequentially along the circumference of the vibration damping pad. The soundproof cover also includes a first connecting portion protruding from the planar segment. The outer peripheral wall of the vibration damping pad is provided with a clearance opening communicating with the first mounting groove. The pump body is provided with a second connecting portion passing through the clearance opening. The first connecting portion is fitted to the second connecting portion. The water pump assembly also includes a fastener. The fastener is connected to the first connecting portion and the second connecting portion. The planar segment and the fastener are spaced apart.

[0012] According to some embodiments of the present invention, the outer peripheral wall of the vibration damping pad is further provided with a guide surface. The guide surface and the clearance opening are arranged sequentially along the direction of the groove toward the through hole. The guide surface is arranged along the axial direction of the pump body and can slide and cooperate with the planar section along the axial direction of the pump body.

[0013] According to some embodiments of the present invention, the pump body is provided with a lead wire at one end away from the water inlet, the cover is provided with a wire passage groove for the lead wire to pass through, the first opening of the wire passage groove is disposed facing the top cover, and the top cover is configured to close the first opening when the top cover is placed on the cover.

[0014] According to some embodiments of the present invention, the pump body further includes a water outlet, the main body is located in the first mounting groove, the water outlet is connected to the peripheral wall of the main body, the outer peripheral wall of the vibration damping pad is provided with a limiting groove, the limiting groove and the sound insulation cover are spaced apart along the axial direction of the pump body, and the water outlet passes through the limiting groove through the outer peripheral wall of the vibration damping pad.

[0015] According to some embodiments of the present invention, the outer peripheral wall of the vibration damping pad is further provided with a sliding groove, the sliding groove is arranged along the axial direction of the pump body, the second opening of the sliding groove is formed at the groove opening, the limiting groove is connected to the end of the sliding groove away from the second opening, and along the circumferential direction of the vibration damping pad, the width of the sliding groove is less than or equal to the width of the limiting groove.

[0016] A household appliance according to a second aspect of the present invention includes a chassis and a water pump assembly as described in the first aspect embodiment. The chassis is provided with a second mounting groove, the vibration damping pad is inserted into the second mounting groove, and the pump body and the sound insulation cover are respectively connected to the chassis.

[0017] The household appliance according to the embodiments of this utility model has at least the following beneficial effects:

[0018] The household appliance of this utility model adopts the water pump assembly of the first aspect embodiment. Vibration damping pads buffer the vibration of the pump body, preventing direct collision between the pump body and the chassis, thereby reducing collision noise. Furthermore, a soundproof cover is installed on the side of the pump body facing away from the inlet, and this cover is fitted around the outer periphery of the vibration damping pads, thus jointly defining a chamber. This not only confines the electromagnetic noise generated by the motor within the chamber, reducing the risk of electromagnetic noise propagating outside the chamber and blocking its transmission, but also separates the soundproof cover from the pump body, preventing collision noise caused by the pump body colliding with the cover. This effectively reduces the overall noise level of the household appliance, lowers the possibility of damage to components such as the chassis and pump body, extends the service life of the household appliance, and improves the user experience.

[0019] According to some embodiments of the present invention, the chassis is provided with a third connecting part, the soundproof cover includes a first connecting part, the first connecting part protrudes from the outer peripheral wall of the soundproof cover, the vibration damping pad is provided with a clearance opening communicating with the first mounting groove, the pump body is provided with a second connecting part passing through the clearance opening, the first connecting part is fitted to the second connecting part, and the water pump assembly further includes a fastener, the fastener being sequentially connected to the first connecting part, the second connecting part and the third connecting part.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a partial schematic diagram of a household appliance according to an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of a water pump assembly assembled on a chassis according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of a water pump assembly according to an embodiment of the present invention;

[0025] Figure 4 This is an exploded view of a water pump assembly according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a cover according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of a vibration damping pad according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of a water pump assembly with the top cover hidden, according to an embodiment of the present invention.

[0029] Icon labels:

[0030] Water pump assembly 1000; chassis 2000;

[0031] Vibration damping pad 100; First mounting groove 110; Groove 111; Through hole 112; Clearance opening 120; Guide surface 130; Limiting groove 140; Slide groove 150; Second opening 151; Support foot 160;

[0032] Pump body 200; inlet nozzle 210; inlet port 211; motor section 220; pump head 230; second connecting part 240; second connecting hole 241; lead wire 250; main body 260; outlet nozzle 270;

[0033] Soundproof enclosure 300; enclosure body 310; curved section 311; flat section 312; first connecting part 313; first connecting hole 3131; wire channel 314; first opening 315; top cover 320; third mounting slot 330;

[0034] Chamber 400;

[0035] Fasteners 500;

[0036] Second mounting slot 600; baffle 610; third connecting part 620; third connecting hole 621. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] It's understandable that condensation buildup in the chassis of household appliances like air conditioners and heat pumps is a common phenomenon. To drain this condensation, a water pump is typically installed on the chassis. Specifically, the lower half of the pump houses an impeller, while the upper half contains a motor that drives the impeller. When the motor starts, the impeller rotates, drawing condensation from the inlet into the pump, and the condensation is then discharged from the device through the outlet.

[0042] However, during this process, the water pump generates radial vibrations, causing it to continuously collide with the chassis, resulting in persistent collision noise. This also reduces the pump's installation stability, making it prone to damage to the chassis, pump, and other surrounding components. Furthermore, the upper part of the pump transmits electromagnetic noise generated by the motor, further exacerbating the equipment's noise problem.

[0043] To address the aforementioned problems, some embodiments of this utility model propose a water pump assembly 1000 that can reduce collision noise and block the propagation of electromagnetic noise. See details below. Figures 1 to 7 The water pump assembly 1000 is described below.

[0044] For ease of description, the following description uses the water pump assembly 1000 applied to a household appliance as an example. (Refer to...) Figure 1 and Figure 2 As shown in this embodiment of the invention, the household appliance includes a chassis 2000, which is installed at the bottom of the appliance to support and fix its various functional components. Therefore, condensation from the surfaces of the functional components and the inner wall of the appliance's casing naturally drips onto the chassis 2000. Based on this, a water pump assembly 1000 is installed on the chassis 2000 and, through connection to a pipe, discharges the accumulated condensation outside the appliance.

[0045] Reference Figure 3 and Figure 4 As shown, in this embodiment of the present invention, the water pump assembly 1000 includes a pump body 200, a vibration damping pad 100, and a sound insulation cover 300. The pump body 200, the vibration damping pad 100, and the sound insulation cover 300 can be connected to the chassis 2000 respectively. The pump body 200 is generally cylindrical. The sound insulation cover 300 and the vibration damping pad 100 are arranged sequentially along the axial direction of the pump body 200 and connected to each other, jointly defining a chamber 400. The chamber 400 is suitable for accommodating the pump body 200, and the pump body 200 is detachably installed in the chamber 400. It is understood that the axial direction of the pump body 200 is consistent with the vertical direction. Based on this, the vibration damping pad 100 is located on the lower side of the pump body 200, and a first mounting groove 110 is provided inside it. The pump body 200 is inserted into the first mounting groove 110.

[0046] Specifically, refer to Figure 2 and Figure 4 As shown, in this embodiment of the present invention, the pump body 200 includes a motor section 220 and a pump head 230 arranged sequentially from top to bottom. The motor section 220 houses a motor, and the pump head 230 houses an impeller. A water inlet 210 is connected to the lower side of the pump head 230, and the water inlet 210 has an inlet 211 communicating with a water receiving groove (not shown) of the chassis 2000. Correspondingly, the upper end of the vibration damping pad 100 has a slot 111, and the lower end has a through hole 112. The two ends of the first mounting groove 110 are respectively connected to the slot 111 and the through hole 112. The slot 111 allows the pump body 200 to pass through and enter the first mounting groove 110. Figure 6 As shown, in one example, the bottom of the vibration damping pad 100 is provided with a plurality of support feet 160, which are arranged circumferentially along the through hole 112. The arrangement of the support feet 160 can buffer the circumferential vibration of the pump body 200.

[0047] Reference Figure 2As shown, in this embodiment of the present invention, at least a portion of the pump body 200 is located within the first mounting groove 110. Specifically, in this embodiment, the pump body 200 may only be partially located within the first mounting groove 110, with the remaining portion protruding upwards from the groove opening 111. Alternatively, the entire pump body 200 may be located within the first mounting groove 110, with the top of the pump body 200 flush with the groove opening 111. The inlet nozzle 210 extends through the through hole 112, allowing condensate water to enter the pump body 200.

[0048] Understandably, when the pump body 200 is running, the vibration damping pad 100 can buffer the vibration of the portion of the pump body 200 located within the first mounting groove 110. By separating the pump body 200 from the chassis 2000, direct collision between the portion of the pump body 200 located within the first mounting groove 110 and the chassis 2000 is avoided, thereby reducing collision noise. It should be noted that since the radial vibration of the pump body 200 is mainly concentrated in the lower half of the pump head 230, the vibration damping pad 100 fitted onto the lower half of the pump body 200 can significantly reduce the vibration force transmitted from the pump body 200 to the chassis 2000.

[0049] Reference Figure 2 and Figure 4 As shown, in this embodiment of the invention, the soundproof enclosure 300 is located above the pump body 200, and its interior is provided with a third mounting groove 330. The upper part of the assembly of the pump body 200 and the vibration damping pad 100 passes through the third mounting groove 330. It should be noted that related technologies install the water pump inside a soundproof enclosure, and then fix the soundproof enclosure to the chassis. However, this technical solution will generate additional problems, namely, the water pump will directly collide with the inner wall of the soundproof enclosure during operation, still producing significant collision noise.

[0050] Therefore, referring to Figure 2 As shown in this embodiment of the invention, the soundproof cover 300 is fitted around the outer periphery of the vibration damping pad 100. Clearly, the vibration damping pad 100 can separate the soundproof cover 300 from the pump body 200, thereby preventing collision noise caused by the pump body 200 colliding with the soundproof cover 300. Furthermore, the motor section 220 located in the upper half of the pump body 200 is situated within the third mounting groove 330, and the soundproof cover 300 and the vibration damping pad 100 define a relatively enclosed chamber 400. Therefore, not only is the electromagnetic noise generated by the motor confined within the chamber 400, reducing the risk of electromagnetic noise propagating outside the chamber 400, but the propagation of electromagnetic noise is also blocked.

[0051] After numerous experiments, the inventors discovered that when the portion of the vibration damping pad 100 covering the pump body 200 is too small, the damping pad 100 has limited effect in limiting the radial vibration of the pump body 200 and cannot effectively prevent the pump body 200 from colliding with the sound insulation cover 300. Therefore, referring to... Figure 2As shown, in this embodiment of the present invention, the pump body 200 includes a main body 260 and a water inlet 210 connected to each other. The main body 260 and the water inlet 210 are arranged sequentially from top to bottom, and the main body 260 is located within the first mounting groove 110. Along the axial direction of the pump body 200, the height of the pump body 200 is H, and the depth of the first mounting groove 110 is L, satisfying: L≥H / 3. It should be noted that the axial direction of the pump body 200 can be understood as parallel to the extension direction of the motor output shaft inside the pump body 200.

[0052] It is understood that in this embodiment, the pump body 200 is arranged vertically, and the axial direction of the pump body 200 is consistent with the vertical direction. The through hole 112 is formed in the bottom wall of the first mounting groove 110, and the water inlet 210 protrudes from the bottom wall of the pump body 200. Therefore, the height of the pump body 200 refers to the distance between the bottom wall and the top wall of the main body 260. In this embodiment, the bottom wall of the main body 260 is fitted to the bottom wall of the first mounting groove 110. Based on this, the depth of the first mounting groove 110 is equivalent to the height of the overlapping portion of the projection of the main body 260 and the projection of the first mounting groove 110 on a projection plane perpendicular to the radial direction of the pump body 200. This embodiment, by reasonably limiting the ratio of L to H, ensures that the vibration damping pad 100 can effectively separate the pump body 200 and the sound insulation cover 300, effectively limiting the collision between the pump body 200 and the sound insulation cover 300 due to radial vibration.

[0053] In this embodiment of the invention, the vibration damping pad 100 is made of a flexible material. For example, the vibration damping pad 100 can be a rubber part, integrally molded from rubber material. The flexible vibration damping pad 100 can effectively absorb the vibration of the pump body 200, thereby playing a buffering role. To further limit the radial vibration of the pump body 200, refer to... Figure 2 As shown, in this embodiment, the first mounting groove 110 matches the shape and size of the pump body 200. The entire pump body 200 is located within the first mounting groove 110, and the outer peripheral wall of the pump body 200 is in contact with the inner wall of the first mounting groove 110. Therefore, the vibration damping pad 100 can constrain the radial vibration of the pump body 200, thereby reducing the radial vibration of the pump body 200. This not only improves the stability of the pump body 200, but also further enhances the buffering effect on the pump body 200.

[0054] Continue to refer to Figure 2As shown in this embodiment of the invention, it is understood that the peripheral wall of the soundproof cover 300 is located outside the peripheral wall of the vibration damping pad 100, while the peripheral wall of the pump body 200 is located inside the peripheral wall of the vibration damping pad 100. Therefore, the peripheral wall of the soundproof cover 300 and the peripheral wall of the pump body 200 are spaced apart. In this embodiment, the ends of the soundproof cover 300 and the pump body 200 facing away from the water inlet 210 are spaced apart, that is, there is a gap between the upper end of the soundproof cover 300 and the upper end of the pump body 200, further ensuring that the soundproof cover 300 and the pump body 200 cannot collide.

[0055] Reference Figure 3 and Figure 4 As shown, in this embodiment of the present invention, the soundproof cover 300 includes a cover body 310 and a top cover 320. The cover body 310 is an annular structure that surrounds the outer peripheral wall of the vibration damping pad 100. Specifically, in one example, the cover body 310 can be formed by bending a plate, with both ends of the plate overlapping radially along the vibration damping pad 100. The overlapping portion can be fixed by welding, riveting, or other methods to form the cover body 310. In this embodiment, the lower end of the cover body 310 is fitted onto the outer periphery of the vibration damping pad 100, and the upper end is covered by the top cover 320. The top cover 320 and the cover body 310 can be connected and fixed by interference fit, fasteners 500, or other methods, which are not limited in this embodiment. The lower end face of the top cover 320 serves as the bottom wall of the third mounting groove 330 and is spaced apart from the upper end of the pump body 200.

[0056] Reference Figure 5 As shown, in this embodiment of the present invention, the outer peripheral wall of the cover 310 includes an arc-shaped segment 311 and a flat segment 312, which are integrally formed and arranged sequentially along the circumference of the damping pad 100. A first connecting portion 313 is formed on the surface of the flat segment 312 protruding outwards radially from the cover 310. Correspondingly, referring to… Figure 4 and Figure 6 As shown, in this embodiment, the pump body 200 is provided with a second connecting part 240, and the outer peripheral wall of the vibration damping pad 100 is provided with a clearance opening 120 for the second connecting part 240 to pass through the first mounting groove 110. One end of the second connecting part 240 is connected to the outer peripheral wall of the pump body 200, and the other end passes through the clearance opening 120 and is located below the first connecting part 313.

[0057] Reference Figure 3As shown, in this embodiment of the invention, the first connecting portion 313 fits against the upper end face of the second connecting portion 240, thereby avoiding a gap between the first connecting portion 313 and the second connecting portion 240. The mutual constraint between the first connecting portion 313 and the second connecting portion 240 prevents the pump body 200 from transmitting vibration to the soundproof enclosure 300. In this embodiment, the water pump assembly 1000 also includes a fastener 500 for connecting the first connecting portion 313 and the second connecting portion 240. It should be noted that the fastener 500 can sequentially connect the first connecting portion 313, the second connecting portion 240, and the chassis 2000. It is understood that the planar segment 312 reduces the radial dimension of the enclosure 310, reserving installation space for the fastener 500, thereby improving the compactness of the water pump assembly 1000.

[0058] Reference Figure 5 and Figure 6 As shown in this embodiment of the invention, the outer peripheral wall of the vibration damping pad 100 is provided with a guide surface 130. In one example, there are two guide surfaces 130, which are respectively disposed on both sides of the clearance opening 120 along the circumference of the cover 310. The guide surfaces 130 and the clearance opening 120 are arranged sequentially from top to bottom, that is, the two guide surfaces 130 are respectively located on the upper side of the clearance opening 120. It can be understood that the pump body 200 can be inserted into the first mounting groove 110 from top to bottom, and the cover 310 can be fitted onto the outer periphery of the vibration damping pad 100 from top to bottom. Based on this, in order to guide the cover 310, the guide surface 130 is constructed to extend in the vertical direction.

[0059] Continue to refer to Figure 5 and Figure 6 As shown, in this embodiment of the invention, the planar segment 312 and the guide surface 130 are slidably engaged, thereby guiding the assembly and disassembly of the cover 310, thus improving the assembly efficiency of the water pump assembly 1000 and reducing the assembly difficulty of the water pump assembly 1000. Furthermore, the arrangement of the planar segment 312 and the guide surface 130 facilitates quick identification of the installation direction, thereby improving the installation efficiency of the pump body 200, the cover 310, and the top cover 320.

[0060] Reference Figure 7 As shown, in this embodiment of the present invention, the pump body 200 is provided with a lead wire 250, which is connected to the top of the pump body 200. To enable the lead wire 250 to connect to components such as the electrical control box, the peripheral wall of the cover 310 is provided with a wire passage groove 314 matching the lead wire 250, allowing the lead wire 250 to pass through the passage groove 314 and exit the chamber 400. It is understood that in this embodiment, the top of the passage groove 314 is provided with a first opening 315, which is located on the upper surface of the cover 310. Therefore, the lead wire 250 can be inserted into the passage groove 314 from top to bottom through the first opening 315. Figure 2It is understood that when the top cover 320 is placed on the cover 310, the top cover 320 closes the first opening 315, thereby preventing the lead wire 250 from coming off the wire groove 314.

[0061] Reference Figure 3 and Figure 4 As shown, in this embodiment of the present invention, the pump body 200 includes a main body 260 and a water outlet 270. The main body 260 is located within the first mounting groove 110, the water inlet 210 is connected to the bottom end of the main body 260, and the water outlet 270 is connected to the peripheral wall of the main body 260. The outer peripheral wall of the vibration damping pad 100 is provided with a limiting groove 140. In one example, the water outlet 270 is cylindrical, and the limiting groove 140 is a circular hole that matches the water outlet 270. The water outlet 270 passes through the limiting groove 140 and protrudes from the outer peripheral wall of the vibration damping pad 100, thereby enabling it to connect to a drainage pipe. In this embodiment, the limiting groove 140 and the sound insulation cover 300 are spaced apart in the vertical direction. Specifically, the limiting groove 140 is located on the lower side of the sound insulation cover 300, thereby eliminating the need to cut a groove in the sound insulation cover 300 for the water outlet 270 to pass through, and thus enhancing the noise transmission blocking capability of the sound insulation cover 300.

[0062] Reference Figure 4 and Figure 6 As shown, in this embodiment of the invention, the outer peripheral wall of the vibration damping pad 100 is further provided with a sliding groove 150. The sliding groove 150 is located above the limiting groove 140 and communicates with the upper end of the limiting groove 140. The sliding groove 150 extends in the vertical direction and serves to guide the assembly of the pump body 200. Specifically, in this embodiment, the top end of the sliding groove 150 is provided with a second opening 151, wherein the second opening 151 is formed on the upper end surface of the vibration damping pad 100, i.e., at the groove opening 111.

[0063] Understandably, when assembling the pump body 200, the outlet 270 can be inserted into the slide groove 150 through the second opening 151. Simultaneously with inserting the pump body 200 into the first mounting groove 110, the outlet 270 will move along the slide groove 150 until it reaches the limiting groove 140. In one example, the second opening 151 is funnel-shaped; specifically, the width of the second opening 151 gradually decreases from top to bottom, thereby guiding the outlet 270 into the slide groove 150.

[0064] Reference Figure 6As shown, in this embodiment of the invention, the width of the slide groove 150 along the circumference of the damping pad 100 is W, and the width of the limiting groove 140 along the circumference of the damping pad 100 is D. It can be understood that the limiting groove 140 is a circular hole; therefore, the width of the limiting groove 140 along the circumference of the damping pad 100 is the inner diameter of the limiting groove 140. In this embodiment, the damping pad 100 is a flexible component with a certain deformation capacity. Based on this, the condition W≤D is satisfied, thereby ensuring that the water outlet 270 can be clamped when it moves along the slide groove 150, thus accurately guiding the pump body 200 in the installation direction. After the pump body 200 is assembled, the limiting groove 140 can effectively and reliably limit and constrain the water outlet 270.

[0065] This utility model also proposes a household appliance, which can be an air conditioner, heat pump equipment, dehumidifier, etc., and this embodiment does not limit it to this. Specifically, refer to... Figure 1 and Figure 2 As shown, in this embodiment, the household appliance includes a chassis 2000 and a water pump assembly 1000 as described in the above embodiment. A baffle 610 protrudes from the upper surface of the chassis 2000, and the baffle 610 and the upper surface of the chassis 2000 define a second mounting groove 600. The second mounting groove 600 matches the shape and size of the vibration damping pad 100. Based on this, the vibration damping pad 100 can be inserted into the second mounting groove 600, thus separating the baffle 610 and the pump body 200. Since the vibration damping pad 100 is a flexible component, to improve the installation stability of the water pump assembly 1000, the pump body 200 and the soundproof cover 300 are respectively connected to the chassis 2000.

[0066] The household appliance of this utility model adopts the water pump assembly 1000 of the above embodiment. The vibration damping pad 100 buffers the vibration of the pump body 200, avoiding direct collision between the pump body 200 and the chassis 2000, thereby reducing the generation of collision noise. Furthermore, by setting a sound insulation cover 300 on the side of the pump body 200 facing away from the water inlet 210 and placing the sound insulation cover 300 around the outer periphery of the vibration damping pad 100, the sound insulation cover 300 and the vibration damping pad 100 together define the chamber 400. This not only confines the electromagnetic noise generated by the motor within the chamber 400, reducing the risk of electromagnetic noise propagating outside the chamber 400 and blocking the propagation of electromagnetic noise, but also the vibration damping pad 100 separates the sound insulation cover 300 from the pump body 200, preventing the pump body 200 from colliding with the sound insulation cover 300 and generating collision noise. This effectively reduces the overall noise level of the household appliance, reduces the possibility of damage to components such as the chassis 2000 and the pump body 200, extends the service life of the household appliance, and improves the user experience.

[0067] Since the household appliance adopts all the technical solutions of the water pump assembly 1000 of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0068] Combination Figure 1 and Figure 2 It can be understood that the upper surface of the chassis 2000 protrudes upward to form a third connecting portion 620, which is located on one side of the second mounting groove 600 and has a third connecting hole 621. Specifically, the first connecting portion 313, the second connecting portion 240, and the third connecting portion 620 are arranged sequentially from top to bottom. (Refer to...) Figure 4 As shown, in this embodiment, the first connecting part 313 is provided with a first connecting hole 3131, and the second connecting part 240 is provided with a second connecting hole 241. Fasteners 500 are sequentially connected to the first connecting hole 3131, the second connecting hole 241, and the third connecting hole 621, thereby achieving a fixed connection between the soundproof cover 300, the pump body 200, and the chassis 2000. It should be noted that the fasteners 500 can be bolts or rivets; this embodiment does not limit this.

[0069] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A water pump assembly, characterized in that, include: A vibration damping pad is provided with a first mounting groove, and the vibration damping pad is provided with a through hole communicating with the first mounting groove. The through hole is located on the side of the vibration damping pad away from the opening of the first mounting groove. A pump body is inserted through the slot, and at least part of the pump body is located in the first mounting slot. The pump body is provided with a water inlet that extends out of the through hole. A soundproof cover is provided on the side of the pump body away from the water inlet. The soundproof cover is fitted around the outer periphery of the vibration damping pad and defines a cavity for accommodating the pump body together with the vibration damping pad.

2. The water pump assembly according to claim 1, characterized in that, The pump body includes a main body and the inlet nozzle connected to each other. The main body and the inlet nozzle are arranged sequentially along the groove towards the through hole. The main body is located in the first mounting groove. Along the axial direction of the pump body, the height of the pump body is H, and the depth of the first mounting groove is L, satisfying: L≥H / 3.

3. The water pump assembly according to claim 2, characterized in that, The vibration damping pad is made of a flexible material. The first mounting groove matches the pump body. The entire main body is located in the first mounting groove. The outer peripheral wall of the main body is attached to the inner wall of the first mounting groove. The sound insulation cover is spaced apart from the side of the pump body away from the water inlet.

4. The water pump assembly according to claim 3, characterized in that, The soundproof enclosure includes a cover body and a top cover. The cover body is arranged around the outer peripheral wall of the vibration damping pad. One end of the cover body is fitted onto the outer periphery of the vibration damping pad. The top cover is placed over the other end of the cover body. The top cover is spaced apart from the pump body.

5. The water pump assembly according to claim 4, characterized in that, The outer peripheral wall of the enclosure includes an arcuate segment and a planar segment arranged sequentially along the circumference of the vibration damping pad. The soundproof enclosure also includes a first connecting portion protruding from the planar segment. The outer peripheral wall of the vibration damping pad is provided with a clearance opening communicating with the first mounting groove. The pump body is provided with a second connecting portion passing through the clearance opening. The first connecting portion is fitted to the second connecting portion. The water pump assembly also includes a fastener. The fastener is connected to the first connecting portion and the second connecting portion. The planar segment and the fastener are spaced apart.

6. The water pump assembly according to claim 5, characterized in that, The outer peripheral wall of the vibration damping pad is also provided with a guide surface. The guide surface and the clearance opening are arranged sequentially along the direction of the slot toward the through hole. The guide surface is arranged along the axial direction of the pump body and can slide and cooperate with the planar section along the axial direction of the pump body.

7. The water pump assembly according to claim 4, characterized in that, The pump body has a lead wire at one end away from the inlet, and the cover has a wire passage groove for the lead wire to pass through. The first opening of the wire passage groove faces the top cover, and the top cover is configured to close the first opening when the top cover is placed on the cover.

8. The water pump assembly according to claim 3, characterized in that, The pump body also includes a water outlet. The main body is located in the first mounting groove. The water outlet is connected to the peripheral wall of the main body. The outer peripheral wall of the vibration damping pad is provided with a limiting groove. The limiting groove and the sound insulation cover are spaced apart along the axial direction of the pump body. The water outlet passes through the limiting groove and extends out of the outer peripheral wall of the vibration damping pad.

9. The water pump assembly according to claim 8, characterized in that, The outer peripheral wall of the vibration damping pad is also provided with a sliding groove, which is arranged along the axial direction of the pump body. The second opening of the sliding groove is formed at the groove opening. The limiting groove is connected to the end of the sliding groove away from the second opening. Along the circumference of the vibration damping pad, the width of the sliding groove is less than or equal to the width of the limiting groove.

10. A household appliance, characterized in that, The system includes a chassis and a water pump assembly as described in any one of claims 1 to 9, wherein the chassis is provided with a second mounting groove, the vibration damping pad is inserted into the second mounting groove, and the pump body and the sound insulation cover are respectively connected to the chassis.

11. The household appliance according to claim 10, characterized in that, The chassis is provided with a third connecting part, the soundproof cover includes a first connecting part, the first connecting part protrudes from the outer peripheral wall of the soundproof cover, the vibration damping pad is provided with a clearance opening communicating with the first mounting groove, the pump body is provided with a second connecting part passing through the clearance opening, the first connecting part is fitted to the second connecting part, the water pump assembly also includes fasteners, the fasteners are sequentially connected to the first connecting part, the second connecting part and the third connecting part.

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