A dishwasher

Abstract

The application discloses a dishwasher, which comprises an inner container for containing tableware, a base under the inner container, a power device for driving water flow, the power device having a motor and a water pump driven by the motor, and the motor is fixed on the base, a damping part is arranged between the base and the motor, the motor is snap-fitted on the damping part, and the damping part is fixed on the base. The damping part arranged between the base and the motor can reduce the vibration transmission of the motor to the shell of the dishwasher, reduce the vibration and noise. The motor is snap-fitted on the damping part, so that the assembly operation of the motor is simple, the assembly speed of the dishwasher is improved, the motor and the base are not directly contacted, the damping effect is ensured, and the stability and safety of the dishwasher during the washing process are improved.

Description

Technical Field

[0001] This invention belongs to the field of dishwasher technology, and specifically relates to a dishwasher. Background Technology

[0002] Currently, with the continuous improvement of people's living standards, dishwashers have gradually become a common household appliance, mainly used for cleaning and drying dishes and other tableware. Using a dishwasher to wash tableware can greatly reduce tedious manual labor. Simply put the tableware to be washed into the dishwasher, turn on the tap, press a button, and you can confidently do other things, because no one needs to supervise the washing process, and it can be completed automatically. Dishwashers reduce people's labor intensity and improve work efficiency.

[0003] During the washing process, a dishwasher requires a washing motor to drive a washing pump. Washing water is sprayed from a tank at the bottom of the inner tub into the tub, and then flows back into the tank, completing a washing cycle. Currently, the motor is typically bolted to the dishwasher base, and the washing pump is fixed to the motor's output end. This results in vibrations from the motor and washing pump being directly transmitted to the base and then to the outer casing, causing significant vibrations and noise. Excessive vibration can also lead to movement of the dishwasher or detachment of parts, affecting its stability, safety, quality, and performance. Furthermore, fixing the motor requires positioning and tightening bolts, which takes time and hinders assembly efficiency.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This invention addresses the aforementioned problems in the prior art by proposing a dishwasher that helps reduce vibration and improves motor assembly efficiency.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] A dishwasher, comprising:

[0008] The inner liner, which is used to hold the tableware;

[0009] The base is located below the inner liner;

[0010] A power unit for driving the flow of water, the power unit having an electric motor and a water pump driven by the electric motor;

[0011] The motor is fixed on the base, and a shock absorber is provided between the base and the motor. The motor is snapped onto the shock absorber, and the shock absorber is fixedly set to the base.

[0012] Furthermore, an upwardly extending mounting plate is provided on the base, the shock absorber has a cylindrical body, and a support column matching the inner diameter of the body is provided on the mounting plate, the body being fitted onto the outside of the support column.

[0013] Furthermore, the shock absorber also has a plurality of mounting claws spaced apart circumferentially, the mounting claws being located on the outside of the body and spaced apart from the body.

[0014] Furthermore, the shock absorber also has a shock absorber sleeve sleeved on the outside of the body, and the mounting claw extends axially along the end of the shock absorber sleeve away from the mounting plate.

[0015] Furthermore, a plurality of radially spaced connecting ribs are provided between the shock-absorbing sleeve and the body, and an annular connecting plate extending inward and connected to the body is provided at the end of the shock-absorbing sleeve away from the mounting plate.

[0016] Furthermore, the motor has a power output end connected to the water pump and a fixing end for fixing. The fixing end of the motor is provided with an assembly groove that matches the outer diameter side of the body and an outer assembly cylinder sleeved on the outside of the assembly groove. An assembly hole that matches the direction of the mounting claw is provided between the assembly groove and the outer assembly cylinder.

[0017] Furthermore, on the side of the mounting claw away from the mounting plate, there is an outwardly extending claw portion, and the mounting hole has a locking groove that engages with the claw portion, and the claw portion engages in the locking groove.

[0018] Furthermore, the assembly groove and the outer assembly cylinder are coaxially arranged, and a plurality of radially arranged support ribs are provided between the assembly groove and the outer assembly cylinder.

[0019] Furthermore, radially arranged shock-absorbing grooves are provided on the body and the mounting claw, with the opening end of the shock-absorbing groove located at the end of the shock-absorbing groove away from the mounting plate.

[0020] Furthermore, the inner side of the body away from the mounting plate has a plurality of circumferentially arranged positioning grooves, and a positioning protrusion matching the positioning groove is provided at the bottom of the assembly groove, the positioning protrusion being located within the positioning groove.

[0021] Furthermore, the water pump is fixed to the power output end of the motor, and the water pump has a pump chamber and an inlet pipe and an outlet pipe communicating with the pump chamber. The inlet pipe and the outlet pipe are fixed to the water tank of the inner tank.

[0022] Furthermore, the outlet end of the water inlet pipe is connected to the pump chamber, the outlet end of the water inlet pipe and the pump chamber are coaxially arranged, and the water inlet pipe is an arc-shaped pipe.

[0023] Furthermore, the outlet pipe extends tangentially along the pump chamber.

[0024] Furthermore, the body and the support column are interference-fitted.

[0025] Furthermore, the shock absorber is integrally molded from rubber material.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows: by providing a shock-absorbing component between the base and the motor, it is beneficial to reduce the transmission of motor vibration to the dishwasher casing, thereby reducing vibration and noise; by having the motor snap-fitted onto the shock-absorbing component, the assembly operation of the motor is simplified, which helps to improve the assembly speed of the dishwasher; and by ensuring that the motor and the base do not directly contact each other, the shock absorption effect is guaranteed, which helps to increase the stability and safety of the dishwasher during the washing process.

[0027] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of a dishwasher proposed in this invention;

[0030] Figure 2 for Figure 1 Structural diagram of the central base;

[0031] Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle;

[0032] Figure 4 for Figure 3 Enlarged schematic diagram of the middle section structure;

[0033] Figure 5 for Figure 3 Cross-sectional structural schematic diagram of the drive unit and shock absorber;

[0034] Figure 6for Figure 5 Enlarged structural diagram of the middle shock absorber;

[0035] Figure 7 for Figure 6 A schematic diagram of the structure after removing the damping components;

[0036] Figure 8 for Figure 2 A schematic diagram of the structure after removing the drive unit;

[0037] Figure 9 for Figure 8 Enlarged schematic diagram of the middle section structure;

[0038] Figure 10 for Figure 9 A schematic diagram of the structure after removing the damping components;

[0039] Figure 11 This is a structural schematic diagram of the shock absorber;

[0040] Figure 12 This is a structural schematic diagram of the shock absorber from another angle;

[0041] Figure 13 This is a structural diagram of the shock absorber at another angle. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, with the direction closer to the inner cylinder axis being "inner," and the opposite being "outer." These terms are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] See Figures 1-13 An embodiment of a dishwasher proposed in this invention includes: a housing 10, an inner tub (not shown in the figure) inside the housing 10, a base 20 below the inner tub, and a water tank at the bottom of the inner tub; the inner tub is used to hold tableware, and a power unit 30 is used to drive the flow of water. The power unit has a motor 31 and a water pump 32 driven by the motor; the motor 31 is fixed on the base 20, and a shock absorber 40 is provided between the base 20 and the motor 31. The motor 31 is engaged with the shock absorber 40, and the shock absorber 40 is fixedly set with the base 20.

[0046] By providing a shock absorber 40 between the base 20 and the motor 31, the vibration of the motor 31 is reduced from being transmitted to the dishwasher housing 10, thus reducing vibration and noise. The motor 31 is snapped into the shock absorber 40, making the assembly of the motor 31 simple and improving the assembly speed of the dishwasher. Furthermore, it ensures that the motor 31 does not directly contact the base 20, guaranteeing the shock absorption effect and increasing the stability and safety of the dishwasher during the washing process.

[0047] In this embodiment, the water pump 32 is a washing pump, used to transport the washing water in the water tank to the spray device and then spray it into the inner tank; in other embodiments, the water pump 32 may also be a drain pump.

[0048] See Figure 3 As shown, the shock absorber 40 is made of hard rubber, ensuring both shock absorption and support for the motor 31. The motor 31 has a power output end 311 connected to the water pump 32 and a fixing end 312 for fixing. The water pump 32 is fixed to the power output end 311, and the fixing end 312 is snapped onto the shock absorber 40. The water pump 32 has a pump chamber 321 and an inlet pipe 322 and an outlet pipe 323 communicating with the pump chamber 321. The inlet pipe 322 and the outlet pipe 323 are fixed to the water tank inside the tank. After the motor 31 and the water pump 32 are fixed, one end of the power unit 30 is fixed to the shock absorber 40, and the other end is fixed to the water tank, making the power unit 30 firmly fixed.

[0049] In order to better fix one end of the power unit 30 by using a single shock absorber 40, it is preferable to set the shock absorber 40 to be supported at the shaft of the motor 31, that is, the shock absorber 40 and the motor 31 are coaxially arranged; therefore, an upwardly extending mounting plate 21 is provided on the base 20, the shock absorber 40 is fixed on the mounting plate 21, and then the motor 31 is snapped onto the shock absorber 40.

[0050] See Figure 9 and Figure 10 As shown, the damper 40 can be fixed to the mounting plate 21 using screws; preferably, the damper 40 has a cylindrical body 41, and a support column 22 matching the inner diameter of the body 41 is provided on the mounting plate 21, with the body 41 fitted onto the outside of the support column 22; the damper 40 can be directly fitted onto the support column 22 during installation, making the installation and fixing operation of the damper 40 simple and improving assembly efficiency. The body 41 and the support column 22 are interference-fitted, ensuring the firmness of the damper 40 after it is installed on the support column 22.

[0051] See Figures 4-7 As shown, for the assembly structure between the shock absorber 40 and the motor 31, a mounting groove 313 matching the outer diameter side of the body 41 is provided at the fixed end 312 of the motor 31. Preferably, the mounting groove 313 and the outer diameter side of the body 41 are interference-fitted. The shock absorber 40 also has a plurality of mounting claws 42 arranged circumferentially at intervals. The mounting claws 42 are located on the outside of the body 41 and are spaced apart from the body 41. A mounting hole 314 matching the mounting claws 42 is provided at the fixed end 312, and the mounting claws 42 are engaged and fixed in the mounting hole 314. The inner diameter of the body 41 matches the support column 22, allowing the shock absorber 40 to be fixed to the support column 22. The outer diameter of the body 41 matches the mounting groove 313 on the motor 31, allowing the motor 31 to be mounted onto the shock absorber 40. After the motor 31 is installed, the outer side of the support column 22 is the body 41, and the outer side of the body 41 is the wall of the mounting groove 313, forming a coaxial, multi-layered mounting system. This facilitates a tight and stable fit and an interference fit. Furthermore, the mounting claw 42 is used to lock and fix the shock absorber 40 and the motor 31 together. Preferably, the inner side of the mounting claw 42 fits against the outer side of the mounting groove 313 wall, increasing the tightness and stability of the structure.

[0052] See Figures 11-13The structure of the damper 40 is illustrated below. The damper 40 has a cylindrical body 41 and a damping sleeve 43 fitted onto the outside of the body 41. A mounting claw 42 extends axially along the end of the damping sleeve 43 away from the mounting plate 21. The damping sleeve 43 helps to increase the firmness of the mounting claw 42 and ensure its load-bearing performance. The axial extension of the mounting claw 42 also helps to support the motor 31. Multiple radially spaced connecting ribs 44 are provided between the damping sleeve 43 and the body 41. An annular connecting plate 45 extends inward and connects to the body 41 at the end of the damping sleeve 43 away from the mounting plate 21. The connecting ribs 44 and the connecting plate 45 increase the connection between the damping sleeve 43 and the body 41, improving the structural strength of the damper 40. The multiple radially spaced connecting ribs 44, compared to a solid structure, help to reduce material usage and improve the damping effect. The connecting plate 45 further enhances the support for the mounting claw 42. Radially arranged damping grooves 46 are provided on the main body 41 and the mounting claw 42. The opening end of the damping groove 46 is located at the end of the damping groove 46 away from the mounting plate 21. The purpose of setting the damping groove 46 is twofold: first, to reduce the transmission of vibration, so that the vibration is drastically attenuated at the damping groove 46, thereby increasing the damping effect; second, to facilitate deformation during installation, making the assembly operation of the main body 41 with the support column 22 and the assembly groove 313 simple, and making the operation of the mounting claw 42 engaging and fixing into the assembly hole 314 simple and convenient.

[0053] See Figures 5-7 As shown, a mounting groove 313 and an outer mounting sleeve 315 are provided on the fixed end 312 of the motor 31. A mounting hole 314 matching the mounting claw 42 is provided between the mounting groove 313 and the outer mounting sleeve 315. A claw portion 421 extending outward is provided on the side of the mounting claw 42 away from the mounting plate 21. A locking groove 3141 that engages with the claw portion 421 is provided on the mounting hole 314. Multiple radially arranged support ribs 316 are provided between the assembly groove 313 and the outer assembly cylinder 315. The support ribs 316 help to increase the structural strength of the motor 31 and increase the heat dissipation performance. The assembly hole 314 can be formed by two adjacent support ribs 316, the groove wall of the assembly groove 313 and the baffle ribs 317 welded between the two adjacent support ribs 316. The baffle ribs 317 are spaced apart from the housing of the motor 31, that is, there is a gap between the baffle ribs 317 and the housing of the motor 31. The gap between the baffle ribs 317 and the motor 31 is the engagement groove 3141.

[0054] In other embodiments, the outer mounting cylinder 315 and the groove wall of the mounting groove 313 can be configured as the enclosure of the mounting hole 314. The inner end face of the mounting claw 42 fits against the groove wall of the mounting groove 313, and the outer end face of the mounting claw 42 fits against the outer mounting cylinder 315. That is, the distance between the outer mounting cylinder 315 and the groove wall of the mounting groove 313 matches the radial dimension of the mounting claw 42, which is beneficial for the tight fit of the two after the motor 31 is engaged and fixed to the shock absorber 40, and helps to increase the firmness. The groove wall of the mounting groove 313 and the outer mounting cylinder 315 are stiffeners provided on the outside of the motor 31 housing, which increases the structural strength of the housing, improves heat dissipation performance, and also has the function of engaging and fixing with the shock absorber 40.

[0055] On the inner side of the body 41 at the end away from the mounting plate 21, there are multiple circumferentially spaced positioning grooves 411. At the bottom of the assembly groove 313, there is a positioning protrusion 3131 that matches the positioning grooves 411 and is located within the positioning grooves 313. By setting the positioning grooves 411 and the positioning protrusion 3131, it is beneficial to position the motor 31 and the shock absorber 40 in the circumferential direction, avoid relative movement in the circumferential direction, and ensure the firmness of the motor 31 after it is fixed.

[0056] The water pump 32 is fixed to the power output end 311 of the motor 31. The outlet end of the water inlet pipe 322 is connected to the pump chamber 321. The axis of the outlet end of the water inlet pipe 322 coincides with the axis of the pump chamber 321, meaning the outlet end of the water inlet pipe 322 and the motor 31 are coaxially arranged. This allows the power unit 30 to be fixed axially at one end to the shock absorber 40 and at the other end to the water tank of the inner tank via the water inlet pipe 322. The water inlet pipe 322 is an arc-shaped pipe, meaning the axis of the outlet end of the water inlet pipe 322 and the axis of the inlet end have an angle. Preferably, the axis of the outlet end of the water inlet pipe 322 is perpendicular to the axis of the inlet end. The outlet pipe 323 extends tangentially along the pump chamber 321, allowing the washing water in the pump chamber 321 to be pumped out tangentially.

[0057] The installation of the power unit 30 involves the following steps:

[0058] S10. Fix the motor 31 and the water pump 32 to form a drive device 30;

[0059] S20. Seally connect the inlet pipe 322 and the outlet pipe 323 to the water tank;

[0060] S30. Install the shock absorber 40 onto the support column 22 on the mounting plate 21;

[0061] S30. Press the motor 31 close to the shock absorber 40 and towards the mounting plate 21 so that the shock absorber 40 and the motor 31 are engaged and fixed.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A dishwasher, characterized in that, include: The inner liner, which is used to hold the tableware; The base is located below the inner liner; A power unit for driving the flow of water, the power unit having an electric motor and a water pump driven by the electric motor; An electric motor is fixedly mounted on the base. A shock absorber is provided between the base and the motor. The motor is snapped onto the shock absorber. The shock absorber is fixedly mounted to the base. The shock absorber has a cylindrical body and a plurality of circumferentially spaced mounting claws. The mounting claws are located on the outside of the body and are spaced apart from the body. Both the body and the mounting claws have radially arranged shock-absorbing grooves. An upwardly extending mounting plate is provided on the base. A support column matching the inner diameter of the body is opened on the mounting plate. The body is fitted onto the outside of the support column. The fixed end of the motor is provided with an assembly groove that matches the outer diameter of the main body, and an outer assembly cylinder sleeved on the outside of the assembly groove. An assembly hole that matches the mounting claw is provided between the assembly groove and the outer assembly cylinder. An outwardly extending claw portion is provided on the side of the mounting claw away from the mounting plate. Multiple radially arranged support ribs are provided between the assembly groove and the outer assembly cylinder. Two adjacent support ribs, the groove wall of the assembly groove, and the baffle rib welded between the two adjacent support ribs form an assembly hole. The gap between the baffle rib and the motor is a locking groove for engaging with the claw portion.

2. The dishwasher according to claim 1, characterized in that, The shock absorber also has a shock absorber sleeve fitted on the outside of the body, and the mounting claw extends axially along the end of the shock absorber sleeve away from the mounting plate.

3. The dishwasher according to claim 2, characterized in that, Multiple radially spaced connecting ribs are provided between the shock-absorbing sleeve and the body, and an annular connecting plate extending inward and connected to the body is provided at the end of the shock-absorbing sleeve away from the mounting plate.

4. The dishwasher according to claim 1, characterized in that, The motor has a power output terminal connected to the water pump.

5. The dishwasher according to claim 1, characterized in that, The assembly hole has a locking groove that engages with the claw portion, and the claw portion engages within the locking groove.

6. The dishwasher according to claim 1, characterized in that, The assembly slot and the outer assembly cylinder are coaxially arranged.

7. The dishwasher according to any one of claims 1 to 6, characterized in that, The opening end of the damping groove is located at the end of the damping groove away from the mounting plate.

8. The dishwasher according to any one of claims 1 to 6, characterized in that, The main body has a plurality of circumferentially arranged positioning grooves on the inner side of the end away from the mounting plate, and a positioning protrusion matching the positioning groove is provided at the bottom of the mounting groove, the positioning protrusion being located within the positioning groove.

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