Rotating shaft assembly of drum washing machine, inner drum assembly and washing machine

Abstract

Disclosed in the present invention is a rotating shaft assembly of a drum washing machine. The rotating shaft assembly comprises a connecting flange fixedly connected to an inner drum of the washing machine, a rotating shaft rotatably connected to the connecting flange, a sealing member, and a cover, wherein a wire harness passes through the interior of the rotating shaft, the sealing member is sleeved onto the wire harness and forms a seal with respect to the wire harness at the connection between the rotating shaft and the connecting flange, and the cover covers the connection and is configured to, together with the sealing member, block washing water or humid air from spreading along the wire harness toward the outside of the inner drum of the washing machine. The design of the present invention effectively prevents washing water and humid air from causing damage to the interior of the rotating shaft, thereby ensuring the safety and reliability of elements of the drum washing machine.

Description

A rotating shaft assembly, an inner drum assembly, and a washing machine for a drum washing machine. Technical Field

[0001] This invention relates to the field of washing machine technology, specifically to a drum washing machine, including a rotating shaft assembly, an inner drum assembly, and the washing machine itself. Background Technology

[0002] With the improvement of residents' living standards, drum washing machines have become an important part of household appliances. Their performance and reliability are directly related to the user's daily experience. As a key component inside the drum washing machine, the spindle assembly undertakes multiple functions, including supporting the inner drum, transmitting power, and wiring. Currently, most drum washing machines on the market use external wiring, making it impossible to run the power cables inside the drum.

[0003] Patent CN118186718A discloses a device for powering the inside of a drum washing machine and the washing machine itself. While this solves the problem of powering the inner drum via wiring, the wiring is prone to tangling, wear, and breakage during operation due to prolonged high-speed rotation and washing. Furthermore, the washing drum operates in a high-temperature and high-humidity environment, making internal components susceptible to moisture corrosion, which can affect the lifespan of the washing machine and its components, leading to serious malfunctions. Therefore, protecting the internal components of the washing machine is the primary issue to be addressed when implementing inner drum power supply. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the first objective of this invention is to provide a rotating shaft assembly for a drum washing machine, comprising:

[0005] A connecting flange fixedly connected to the inner drum of a washing machine, and a rotating shaft rotatably connected to the connecting flange; wherein a wire harness passes through the rotating shaft;

[0006] The shaft assembly also includes a seal and a cover;

[0007] The sealing element is sleeved on the wire harness and forms a seal with the wire harness at the connection between the rotating shaft and the connecting flange;

[0008] The cover is placed over the connection to prevent washing water or humid air from spreading along the wiring harness to the outside of the washing machine drum, together with the seal.

[0009] Furthermore, the connecting flange is provided with a connecting arm.

[0010] Furthermore, at least three connecting arms are provided.

[0011] Furthermore, a cavity is formed inside the connecting arm to accommodate the wire harness.

[0012] Furthermore, the cavity is provided with a wire-holding groove for fixing the wire harness.

[0013] Furthermore, the cavity is provided with a cover.

[0014] Furthermore, the cover is provided with a through hole for passing the wire harness through and connecting it to the inner drum of the washing machine.

[0015] Furthermore, the connecting flange has a central hole for connecting the connecting flange and the rotating shaft.

[0016] Furthermore, a first wiring area is formed inside the cavity, a second wiring area is formed inside the rotating shaft, and a third wiring area is formed on the cover; the wire harness is sequentially inserted into the second wiring area, the third wiring area, and the first wiring area.

[0017] Furthermore, the wiring harness includes power lines and signal control lines.

[0018] A second objective of this invention is to provide a rotating shaft assembly for a drum washing machine, comprising a connecting flange fixedly connected to the inner drum of the washing machine and a rotating shaft rotatably connected to the connecting flange;

[0019] A wire harness passes through the shaft;

[0020] The shaft assembly also includes a branch terminal;

[0021] The branch terminal is located at the connection between the connecting flange and the rotating shaft. One end of the branch terminal is electrically connected to the wiring harness inside the inner drum of the washing machine, and the other end is electrically connected to the wiring harness inside the connecting flange. A seal is formed at the connection to prevent washing water or humid air from spreading out of the inner drum along the wiring harness, thus avoiding corrosion of the branch terminal.

[0022] Furthermore, the rotating shaft assembly also includes a seal that can be fitted onto the wire harness and form a seal between the branch terminal and the connection of the wire harness, so as to prevent washing water or humid air from spreading outward along the wire harness.

[0023] Furthermore, the branch terminal includes a conductive position and a no potential.

[0024] Furthermore, the connecting flange is provided with a connecting arm.

[0025] Furthermore, at least three connecting arms are provided.

[0026] Furthermore, a cavity is formed inside the connecting arm to accommodate the wire harness.

[0027] Furthermore, the cavity is provided with a wire-holding groove for fixing the wire harness.

[0028] Furthermore, the cavity is provided with a cover.

[0029] Furthermore, the cover is provided with a through hole for passing the wire harness through and connecting it to the inner drum of the washing machine.

[0030] Furthermore, the connecting flange has a central hole for connecting the connecting flange and the rotating shaft.

[0031] Furthermore, a first wiring area is formed inside the cavity, and a second wiring area is formed inside the rotating shaft; the wire harness passes through the second wiring area, is branched out by the branch terminal, and then passes through the first wiring area.

[0032] Furthermore, the branch terminal includes a conducting position and a no potential.

[0033] A third objective of the present invention is to provide an inner drum assembly for a drum washing machine, including an inner drum body;

[0034] It also includes the spindle assembly of the drum washing machine as described above;

[0035] The inner cylinder body is used to hold the laundry;

[0036] The rotating shaft assembly is fixed to the inner cylinder body to drive the inner cylinder body to rotate.

[0037] A fourth objective of this invention is to provide a washing machine comprising:

[0038] case;

[0039] cylindrical body;

[0040] It also includes the spindle assembly of the drum washing machine as described above;

[0041] The drum body includes an outer drum and an inner drum assembly of a drum washing machine as described above;

[0042] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0043] This invention provides a rotating shaft assembly, an inner drum assembly, and a washing machine for a drum washing machine. Through a rational structural layout, and by incorporating seals and a cover, this invention effectively prevents washing water and moisture from entering the hollow portion of the rotating shaft, significantly enhancing the waterproof and moisture-proof performance of the rotating shaft assembly.

[0044] This invention improves the orderliness and efficiency of wiring by setting cable slots and branch terminals, while achieving dynamic balance of the washing machine during long-term high-speed operation. This makes the internal structure of the washing machine more compact and orderly, while ensuring stable operation and extending its service life. Attached Figure Description

[0045] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0046] Figure 1 is a schematic diagram of the rotating shaft assembly of the drum washing machine described in Embodiment 1;

[0047] Figure 2 is a cross-sectional view of the rotating shaft assembly of the drum washing machine described in Embodiment 1;

[0048] Figure 3 is a structural assembly diagram of the rotating shaft assembly of the drum washing machine described in Example 1;

[0049] Figure 4 is a front view 1 of the connecting flange described in Embodiment 1;

[0050] Figure 5 is a front view of the cap as described in Example 1;

[0051] Figure 6 is a right view of the rotating shaft described in Embodiment 1;

[0052] Figure 7 is a right view of the seal described in Example 1;

[0053] Figure 8 is a front view of the cover described in Embodiment 1;

[0054] Figure 9 is a schematic diagram of the rotating shaft assembly of the drum washing machine described in Embodiment 2;

[0055] Figure 10 is a cross-sectional view of the rotating shaft assembly of the drum washing machine described in Embodiment 2;

[0056] Figure 11 is a structural assembly diagram of the rotating shaft assembly of the drum washing machine described in Embodiment 2;

[0057] Figure 12 is a schematic diagram of the wiring of the rotating shaft assembly of the drum washing machine described in Embodiment 2;

[0058] Figure 13 is a front view of the branch terminal described in Embodiment 2;

[0059] Figure 14 is a right view of the inner drum assembly of the drum washing machine described in Embodiment 3. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0062] Example 1

[0063] Please refer to Figures 1 to 8. An embodiment of the present invention provides a rotating shaft assembly for a drum washing machine, including a connecting flange 10 fixedly connected to the inner drum of the washing machine and a rotating shaft 20 rotatably connected to the connecting flange.

[0064] A wire harness 30 passes through the rotating shaft 20;

[0065] The shaft assembly also includes a seal 40 and a cover 50;

[0066] The sealing element 40 is sleeved on the wire harness 30 and forms a seal with the wire harness 30 at the connection between the rotating shaft 20 and the connecting flange 10;

[0067] The cover 50 is placed over the connection to prevent washing water or humid air from spreading along the wiring harness 30 to the outside of the washing machine drum, together with the seal 40.

[0068] In a preferred embodiment, the connecting flange 10 is made of a high-strength material to ensure a secure connection with the inner drum of the washing machine.

[0069] Specifically, the high-strength material used to make the connecting flange 10 can be carbon steel with high strength and hardness, alloy steel formed by adding other alloying elements (such as chromium, molybdenum, nickel, etc.) to carbon steel to improve its strength, toughness and corrosion resistance, or stainless steel with excellent corrosion resistance and high strength. In specific implementation, different high-strength materials can be selected to make the connecting flange 10 according to actual needs, and this application does not impose any restrictions.

[0070] In a preferred embodiment, the shaft 20 is made of a wear-resistant and corrosion-resistant material to ensure its long-term operational reliability.

[0071] Specifically, the wear-resistant and corrosion-resistant material used to make the rotating shaft 20 can be alloy steel, resin-based composite material with good elasticity and corrosion resistance, copper alloy material with good thermal conductivity and wear resistance, etc. In specific implementation, different wear-resistant and corrosion-resistant materials can be selected to make the rotating shaft 20 according to actual needs, and this application does not impose any restrictions here.

[0072] In some embodiments, the connecting flange 10 has a shaft hole 110 at its center for connecting the connecting flange 10 and the rotating shaft 20.

[0073] In a preferred embodiment, the outer surface of the rotating shaft 20 is provided with a plurality of radial protrusions. The protrusions are evenly distributed around the outer surface of the rotating shaft 20 to form a wrapping structure for the wire harness 30. The design of the protrusions not only increases the contact area between the shaft hole 110 and the rotating shaft 20, but also improves the sealing and stability of the wire harness 30, effectively preventing washing water or humid air from seeping in from the shaft hole 110.

[0074] In a preferred embodiment, the diameter of the shaft hole 110 matches the outer diameter of the rotating shaft 20, ensuring a tight connection between the two while also allowing the rotating shaft 20 to pass through easily.

[0075] During operation, a large amount of washing water and humid air are generated in a drum washing machine, placing the internal components in a high-temperature and extremely humid environment. This washing water or humid air can easily seep into the shaft 20 through the gap between the shaft 20 and the connecting flange 10, spreading outwards from the inner drum and causing serious damage to the wiring harness 30 and other components outside the drum. This directly affects the safe operation and overall lifespan of the washing machine. Traditional methods for isolating washing water and humid air typically involve adding waterproof coatings or using gaskets. However, these methods often suffer from poor sealing, aging, and damage, allowing washing water or humid air to seep into the shaft 20, corroding the wiring harness 30 and causing serious malfunctions such as water accumulation inside the shaft 20 and short circuits.

[0076] In some embodiments, the sealing element 40 involved in this application is sleeved on the wire harness 30 and tightly connected to the connection between the rotating shaft 20 and the connecting flange 10, thereby forming an effective waterproof barrier and thus forming a seal with the wire harness 30.

[0077] In a preferred embodiment, the seal 40 is made of an elastic material, such as rubber or silicone, which has good sealing and wear resistance and can effectively prevent washing water or humid air from entering the hollow part of the shaft 20, thereby protecting the wire harness 30 that runs through the inside of the shaft 20 from damage.

[0078] In a preferred embodiment, the outer surface of the seal 40 is designed with a multi-lipped stepped ring along the axis. The multi-lipped ring fits tightly against the inner wall of the shaft hole 110, forming multiple sealing barriers. This not only enhances the contact area between the seal 40 and the shaft hole 110, but also forms an axial seal on the hollow part of the rotating shaft 20, thereby improving the sealing effect on the wire harness 30.

[0079] In a preferred embodiment, the shape of the seal 40 is designed to conform to the shape of the shaft hole 110, that is, the outer surface of the seal 40 matches the inner wall shape of the shaft hole 110, thereby reducing the gap between the two and improving the sealing performance, thereby further effectively preventing washing water or humid air from seeping into the interior of the rotating shaft 20.

[0080] In some embodiments, the cover 50, which is disposed at the connection between the rotating shaft 20 and the connecting flange 10, is tightly connected to the sealing element 40, together preventing washing water or humid air from spreading along the wiring harness 30 to the outside of the washing machine drum.

[0081] In a preferred embodiment, the cover 50 is made of a material with sufficient strength and rigidity to ensure its structural strength and corrosion resistance, thereby enabling it to withstand the vibrations and impacts of the washing machine during operation.

[0082] Specifically, the material used to make the cover 50 can be ABS, which has high strength, wear resistance, and good temperature resistance; PP, which has good corrosion resistance and impact resistance; aluminum alloy / stainless steel, which has high strength and rigidity; tempered glass, which has high impact resistance and heat resistance; or resin-based composite materials. In specific implementation, different materials can be selected according to actual needs, and this application does not impose any restrictions.

[0083] During the operation of the washing machine, the sealing element 40 is compressed by pressing, forming a tight sealing structure with the cover 50, further ensuring that washing water or moisture will not seep in from the connection.

[0084] In some embodiments, the wiring harness 30 includes power lines and signal control lines. The wiring harness 30 is connected to the inner tub of the washing machine to establish an electrical connection, providing driving force to the washing machine's power supply and motor, ensuring the motor can operate normally. It should be understood that the wiring harness 30 may include multiple power lines and signal control lines simultaneously, or it may contain only a single power line or signal control line. By equipping multiple power lines and signal control lines, not only is the power connection and signal interaction between the rotating shaft assembly and the inner tub of the washing machine achieved, but the dynamic balance of the connecting flange 10 is also achieved, effectively solving the problem of uneven power during the rotation of the washing machine.

[0085] In a preferred embodiment, the wire harness 30 is wrapped with a waterproof and insulating material to prevent washing water or humid air from penetrating into the wire harness 30.

[0086] In some embodiments, the connecting flange 10 is provided with a connecting arm 120.

[0087] In a preferred embodiment, the number of connecting arms 120 is at least three, or may be five, seven, etc.; in another preferred embodiment, the number of connecting arms 120 may also be four, six, eight, etc., to achieve the balance of the connecting flange 10. The specific number may be consistent with the number of lifting ribs provided in the drum washing machine or may be obtained through precise calculation to ensure the balance and stability of the connecting flange 10. This application does not impose any restrictions here.

[0088] In another preferred embodiment, the number of connecting arms 120 involved in this application is three, so that the connecting flange 10 forms a triangular structure, thereby having stronger stability, effectively preventing the deformation of the connecting flange 10, and also achieving the effect of better distributing the weight of the inner drum of the washing machine and the force it experiences during operation.

[0089] In some embodiments, the connecting arm 120 has a cavity 121 formed inside to accommodate the wire harness 30.

[0090] In a preferred embodiment, the cavity 121 is provided with a wire-holding groove 122 for fixing the wire harness.

[0091] In some embodiments, a first wiring area is formed inside the cavity 121, a second wiring area is formed inside the rotating shaft, and a third wiring area is formed on the cover; the wire harness 30 is sequentially inserted into the second wiring area, the third wiring area, and the first wiring area.

[0092] Traditional drum washing machines often use external wiring or directly create wire channels on the rotating shaft surface for wiring harness layout. These methods not only result in messy wiring harnesses that can easily cause safety hazards, but also cause the wiring harnesses to wear and break due to continuous rotation during long-term operation of the washing machine, leading to unstable power supply or failure.

[0093] In some embodiments, the wire harness 30 is laid out through a first wiring area, a second wiring area, and a third wiring area. The wire harness 30 passes through the second wiring area and exits through the shaft hole 110, then is branched through the third wiring area and passed through the first wiring area. This allows the wire harness 30 to be safely and stably laid out in the rotating shaft assembly and fixed by appropriate fixing devices to ensure that it will not loosen or fall off.

[0094] In a preferred embodiment, the fixing device can be a cable tie, buckle, strap, wire channel, or other material that can neatly and stably fix the wire harness 30.

[0095] In some embodiments, this application provides wire-holding grooves 122 within the cavity for securing the wire harness. There may be one or more wire-holding grooves 122, arranged at intervals, thereby ensuring the wire harness 30 is securely fixed within the cavity 121, preventing it from loosening or being damaged during washing machine operation and reducing the risk of external impact and wear. Simultaneously, the multiple wire-holding grooves 122 isolate washing water or humid air, thus protecting the wire harness 30 and preventing it from spreading along the wire harness 30 to the outside of the washing machine drum, causing damage to washing machine components.

[0096] In some embodiments, a cover 123 is provided on the cavity 121 to achieve a tight seal with the cavity 121 and fix the wire harness 30 outgoing from the cavity.

[0097] In a preferred embodiment, the cover 123 is provided with a through hole for passing the wire harness 30 through and connecting it to the inner drum of the washing machine.

[0098] The rotating shaft assembly of the drum washing machine involved in this embodiment is fixedly connected to the inner drum of the washing machine via a connecting flange 10. A wiring area is formed inside the connecting flange 10, the connecting arm 120, and the rotating shaft 20, providing power to the inner drum while also enabling the orderly arrangement of the wiring harness 30. The rotating shaft 20 is rotatably connected to the connecting flange 10 via the shaft hole 110, and its internal second wiring area effectively accommodates the wiring harness 30. The tight sealing of the seal 40 and the cover 50 further enhances the waterproof and moisture-proof performance, ensuring that washing water or humid air cannot penetrate the interior of the rotating shaft along the wiring harness 30 and spread to the outside of the inner drum. In summary, the rotating shaft assembly of the drum washing machine involved in this application not only optimizes the wiring method of the washing machine, improving wiring neatness and maintainability, but also significantly enhances waterproof and moisture-proof performance, extends the service life of the washing machine, and provides users with a more reliable and efficient washing experience.

[0099] Example 2

[0100] Please refer to Figures 9 to 13. An embodiment of the present invention provides a rotating shaft assembly for a drum washing machine, including a connecting flange 10 fixedly connected to the inner drum of the washing machine and a rotating shaft 20 rotatably connected to the connecting flange, wherein a wire harness 30 passes through the rotating shaft 20;

[0101] The shaft assembly also includes a branch terminal 60;

[0102] The branch terminal 60 is located at the connection between the connecting flange 10 and the rotating shaft 20. One end of the branch terminal 60 is electrically connected to the wiring harness inside the inner drum of the washing machine, and the other end is electrically connected to the wiring harness 30 inside the connecting flange 10. A seal is formed at the connection to prevent washing water or humid air from spreading out of the inner drum along the wiring harness 30, thereby avoiding corrosion of the branch terminal 60.

[0103] In some embodiments, the shaft assembly further includes a seal 40, which can be sleeved on the wire harness 30 and form a seal on the wire harness 30 between the branch terminal 60 and the connection of the wire harness 30, so as to prevent washing water or humid air from spreading along the wire harness to the outside of the inner drum together with the branch terminal, thereby avoiding corrosion of the branch terminal.

[0104] In some embodiments, the branch terminal 60 includes a conduction position and a no potential.

[0105] In some embodiments, the connecting flange 10 has a shaft hole 110 at its center for connecting the connecting flange 10 and the rotating shaft 20. The detailed description of the shaft hole 110 is the same as that of the shaft hole 110 in Embodiment 1, and will not be repeated here.

[0106] The detailed description of the rotating shaft 20 is consistent with that of the rotating shaft 20 in Embodiment 1, and will not be repeated here.

[0107] The detailed description of the wire harness 30 is consistent with that of the wire harness 30 described in Embodiment 1, and will not be repeated here.

[0108] The detailed description of the seal 40 is consistent with that of the seal 40 described in Embodiment 1, and will not be repeated here.

[0109] In some embodiments, the connecting flange 10 is provided with a connecting arm 120. The detailed description of the connecting arm 120 is consistent with that of the connecting arm 120 in Embodiment 1, and will not be repeated here.

[0110] In some embodiments, the connecting arm 120 has a cavity 121 formed inside to accommodate the wire harness 30. The detailed description of the cavity 121 is consistent with that of the cavity 121 in Embodiment 1, and will not be repeated here.

[0111] In a preferred embodiment, the cavity 121 is provided with a wire-holding groove 122 for fixing the wire harness. The detailed description of the wire-holding groove 122 is the same as that of the wire-holding groove 122 in Embodiment 1, and will not be repeated here.

[0112] In some embodiments, a cover 123 is provided on the cavity 121. The detailed description of the cover 123 is consistent with that of the cover 123 in Embodiment 1, and will not be repeated here.

[0113] A first wiring area is formed within the cavity 121, and a second wiring area is formed inside the rotating shaft 20. The wire harness 30 passes through the second wiring area, exits through the branch terminal, and then passes through the first wiring area. It should be understood that the branch terminal has two ends, one end of which is electrically connected to the wire harness 30 in the second wiring area, and the other end is electrically connected to the wire harness 30 in the connecting flange 10 (i.e., the first wiring area). Alternatively, the wire harness 30, as a whole wire harness, is accommodated in the second wiring area through one end of the branch terminal 60, exits through the other end of the branch terminal 60, is branched in the connecting flange 10, and then connected to the corresponding conductive position or empty potential before passing through the first wiring area.

[0114] Because washing machines have several lifting elements to control functions such as heating and agitation of clothes inside the drum, these lifting elements need to be energized. However, during operation, different power lines may need independent control to achieve different washing functions or modes. Furthermore, the humid environment and mechanical vibrations inside the washing machine place high demands on the safety and stability of the wiring. If only one end of the wiring harness is energized and connected to the drum during operation, the drum will rotate unbalanced, causing severe vibrations and affecting the lifespan of the washing machine.

[0115] In some embodiments, the branch terminal 60 includes a conductive position and an empty potential. It should be understood that when the wiring harness 30 is connected to the conductive position, the wiring harness 30 is energized and can be connected to the motor components in the washing machine to provide power to the inner drum, thereby enabling individual control of functions such as heating and agitation within the inner drum. When the wiring harness 30 is connected to the empty potential, the wiring harness 30 is de-energized and can only be connected to the inner drum to achieve dynamic balance during the washing machine's rotation.

[0116] In a preferred embodiment, by connecting the wiring harness 30 associated with the lifting element that does not require power to an empty potential, and connecting the wiring harness 30 associated with the lifting element that requires power to a conductive position, a stable wiring structure and counterweight can be formed, ensuring the balance of the washing machine drum during rotation. This solves the problem of rotational imbalance of the washing machine drum during operation and allows for precise power distribution. Simultaneously, under specific conditions (such as in case of washing water intrusion, circuit failure, or other emergencies), the power can be quickly cut off, achieving precise control of the wiring harness 30, preventing safety hazards such as current leakage or short circuits, and protecting the safety of the washing machine and the user. This application, by rationally setting the conductive and empty potentials, can optimize the wiring layout, reduce wiring intersections and interference, improve the neatness and orderliness of the wiring, and also facilitate subsequent maintenance and repair work.

[0117] In another preferred embodiment, the wiring harness 30 associated with the lifting element that requires power can be connected to a conductive position, while the wiring harness 30 associated with the lifting element that does not require power can be left unconnected or have no potential. Instead, other counterweight methods can be used to achieve the purpose of counterweighting, thereby ensuring the balance of the inner drum of the washing machine during rotation and solving the problem of rotational imbalance of the inner drum of the washing machine during operation.

[0118] In a preferred embodiment, the on-state and the empty potential can be connected to multiple wire harnesses 30 at the same time during implementation, and are not limited to one wire harness 30 corresponding to one on-state or empty potential.

[0119] In another preferred embodiment, the seal 40 can be removed, and the rotating shaft 20 and the branch terminal 60 can be integrated into a single structure. The wiring harness 30 is laid through the branch terminal 60. When the wiring harness 30 passes through the branch terminal 60, it is connected to the conductive position or the empty potential connection to the first wiring area, thereby achieving connection with the inner drum of the washing machine and effectively preventing washing water or moisture from directly entering the rotating shaft.

[0120] In a preferred embodiment, a protective device is provided on the branch terminal 60. The protective device may be a cover, integrally formed or fastened to the branch terminal 60, to prevent washing water or moisture from seeping into the branch terminal 60.

[0121] The drum washing machine assembly described in this embodiment achieves independent control of different power lines by setting conductive positions and empty potentials on the branch terminals. This constitutes a stable wiring structure and counterweight, effectively avoiding severe vibrations caused by rotational imbalance of the inner drum and extending the service life of the washing machine. At the same time, the protective device on the branch terminals further prevents washing water or moisture from seeping in, improving the safety and reliability of the entire drum assembly.

[0122] Example 3

[0123] Please refer to Figure 14. This application provides an inner drum assembly for a drum washing machine, including an inner drum body 70 and a rotating shaft assembly for a drum washing machine as described in Embodiment 1 or Embodiment 2.

[0124] The inner drum body 70 is designed in the shape of a cylinder to hold the laundry and ensure that the clothes can be fully tumbled during the washing process to achieve a good washing effect.

[0125] The rotating shaft assembly is fixed to the inner cylinder body to drive the inner cylinder body to rotate.

[0126] In a preferred embodiment, a fixing structure 701 is provided on the inner drum body 70, which is locked with rivets or bolts to achieve the effect of fixing the drum body to the rotating shaft assembly, ensuring that the rotating shaft assembly will not loosen or shift during the operation of the washing machine.

[0127] This embodiment provides an inner drum structure for a drum washing machine. This structure employs the rotating shaft assembly of a drum washing machine as described in Embodiment 1 or Embodiment 2. This inner drum structure also features neat wiring and excellent waterproof performance. The wiring area inside the rotating shaft assembly is rationally designed, allowing the wiring harness 30 to be arranged in an orderly manner, avoiding messy wiring. It also protects the wiring harness 30 from damage to other components inside the washing machine, enhancing the overall stability of the inner drum assembly and improving the durability and safety of the washing machine, thereby ensuring its normal operation and long service life.

[0128] Example 4

[0129] This embodiment provides a washing machine, including a housing and a drum.

[0130] The drum body includes an outer drum and an inner drum assembly of a drum washing machine as described in Example 3;

[0131] The washing machine also includes a spindle assembly of a drum washing machine as described in Embodiment 1 or Embodiment 2.

[0132] In a preferred embodiment, the outer drum is shaped to match the inner drum, typically in a cylindrical shape, to prevent water from splashing out during the washing process and to provide sufficient space for the inner drum to rotate and for the clothes to tumble.

[0133] In a preferred embodiment, a shock absorber may be provided between the outer drum and the inner drum or at the bottom of the outer drum to reduce vibration and noise during the operation of the washing machine.

[0134] In a preferred embodiment, a drain outlet and a drain pipe are provided at the bottom of the outer cylinder for discharging wastewater during the washing process.

[0135] In a preferred embodiment, a control panel is provided at an appropriate position on the outer drum for controlling parameters such as the washing program, water temperature, and spin speed of the washing machine.

[0136] This application provides a washing machine that not only provides stable support and protection, but also effectively improves the sealing performance and ease of wiring management through the structural design of the inner drum, ensuring the normal operation and long service life of the washing machine. At the same time, additional features such as shock absorption design, drainage system, and control panel further enhance the user experience and convenience of the washing machine.

[0137] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A rotating shaft assembly for a drum washing machine, comprising a connecting flange fixedly connected to the inner drum of the washing machine and a rotating shaft rotatably connected to the connecting flange, characterized in that: A wire harness runs through the shaft; The shaft assembly also includes a seal and a cover; The sealing element is sleeved on the wire harness and forms a seal with the wire harness at the connection between the rotating shaft and the connecting flange; The cover is placed over the connection to prevent washing water or humid air from spreading along the wiring harness to the outside of the washing machine drum, together with the seal.

2. The rotating shaft assembly of a drum washing machine according to claim 1, characterized in that, The connecting flange is provided with a connecting arm.

3. The rotating shaft assembly of a drum washing machine according to claim 2, characterized in that, The connecting arm has a cavity inside that accommodates the wire harness.

4. The rotating shaft assembly of a drum washing machine according to claim 1, characterized in that, The connecting flange has a central hole for connecting the connecting flange and the rotating shaft.

5. The rotating shaft assembly of a drum washing machine according to claim 3, characterized in that, A first wiring area is formed inside the cavity, a second wiring area is formed inside the rotating shaft, and a third wiring area is formed on the cover; the wire harness is sequentially inserted into the second wiring area, the third wiring area, and the first wiring area.

6. A drum washing machine shaft assembly according to claim 1, characterized in that, The wiring harness includes power lines and signal control lines.

7. A rotating shaft assembly for a drum washing machine, comprising a connecting flange fixedly connected to the inner drum of the washing machine and a rotating shaft rotatably connected to the connecting flange, characterized in that: A wire harness runs through the shaft; The shaft assembly also includes a branch terminal; The branch terminal is located at the connection between the connecting flange and the rotating shaft. One end of the branch terminal is electrically connected to the wiring harness inside the inner drum of the washing machine, and the other end is electrically connected to the wiring harness inside the connecting flange. A seal is formed at the connection to prevent washing water or humid air from spreading out of the inner drum along the wiring harness.

8. The rotating shaft assembly of a drum washing machine according to claim 7, characterized in that: The rotating shaft assembly also includes a seal that can be fitted onto the wire harness and forms a seal between the branch terminal and the connection of the wire harness, so as to prevent washing water or humid air from spreading outward along the wire harness.

9. The rotating shaft assembly of a drum washing machine according to claim 7, characterized in that: The branch terminal includes a conductive position and a no potential.

10. An inner drum assembly for a drum washing machine, comprising an inner drum body, characterized in that: It also includes the spindle assembly of the drum washing machine as described in claim 1 or 7; The inner cylinder body is used to hold the laundry; The rotating shaft assembly is fixed to the inner cylinder body to drive the inner cylinder body to rotate.

11. A washing machine, characterized in that, include: The spindle assembly of a drum washing machine as described in claim 1 or 7.

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