A washing machine washing energy saving optimization motor

Abstract

The present application relates to the technical field of washing machine motor, in particular to a washing machine washing energy-saving optimization motor. It comprises a motor, a clutch and a cooling device. The cooling device is sleeved on the outer wall of the motor. The cooling device comprises a heat absorption sleeve, a first pipeline, an extension pipe, a power mechanism and a second pipeline. The two ends of the extension pipe are fixedly connected with the first pipeline and one end of the second pipeline respectively and are communicated. The upper and lower sides of the heat absorption sleeve are communicated with the other end of the first pipeline and the second pipeline respectively and form an internal flow channel with the extension pipe for fluid flow. The power mechanism is fixedly connected with the rotating shaft of the motor and is used for extruding the extension pipe to force the fluid in the extension pipe to flow to the heat absorption sleeve through the first pipeline, so that the fluid in the heat absorption sleeve flows to the extension pipe through the second pipeline, thereby forming the circulating flow of the fluid.

Description

Technical Field

[0001] This invention relates to the field of washing machine motor technology, specifically to an energy-efficient electric motor for washing machines. Background Technology

[0002] Washing machine motors are prone to overheating during use, which can lead to malfunctions. Besides the increased workload and heat generation due to a heavy load of laundry, a loose or aged belt can reduce friction on the motor shaft, requiring the motor to operate at higher speeds to achieve the same washing effect, which also contributes to overheating.

[0003] In existing technologies, a cooling wheel is usually installed on the motor shaft. However, when the washing machine is in the washing state, the motor speed is slow and it rotates back and forth, which cannot generate enough airflow to dissipate heat from the motor.

[0004] CN202222160104.1 discloses a high-efficiency heat dissipation washing machine motor, which dissipates heat from the motor through a water-cooling heat dissipation component. The first and second water guide pipes extend into the water tank to guide water flow into the water-cooling coil to absorb the heat of the motor body, thereby achieving heat dissipation over time.

[0005] However, the aforementioned device is located on the lower side of the water tank, preventing water entering the water-cooling coil from flowing out. This hinders water circulation, and once the water in the water-cooling coil absorbs all the heat from the motor, the heat cannot dissipate in time. Furthermore, the heat dissipation casing surrounding the water-cooling coil further impairs heat dissipation, easily causing damage to the motor. Therefore, this invention provides an energy-efficient optimized motor for washing machines. Summary of the Invention

[0006] The purpose of this invention is to provide an energy-saving optimized motor for washing machines to solve the problem of motor overheating mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An energy-saving optimized electric motor for washing machines includes a motor, a clutch, and a cooling device; both the motor and the clutch are installed at the bottom of the inner tub of the washing machine, and the motor and the clutch are connected by a belt drive; the cooling device is sleeved on the outer wall of the motor.

[0009] The cooling device includes a heat-absorbing kit fitted around the outer wall of the motor, a first pipe, a telescopic pipe, a power mechanism, and a second pipe;

[0010] The telescopic tube is fixedly connected to one end of the first pipe and one end of the second pipe at both ends. The upper and lower sides of the heat-absorbing kit are connected to the other ends of the first pipe and the second pipe, respectively, forming an internal flow channel for fluid flow together with the two telescopic cavities inside the telescopic tube. The power mechanism is fixedly connected to the shaft of the motor and slidably connected to the telescopic tube. It is used to squeeze the telescopic tube, forcing the fluid in the telescopic tube to flow unidirectionally into the heat-absorbing kit through the first pipe. Then, the fluid in the heat-absorbing kit flows unidirectionally into the telescopic tube through the second pipe, thus forming a circulating flow of fluid to cool the motor.

[0011] Preferably, a limiting ring is fitted on the outer wall of the motor shaft, and the limiting ring is fixedly connected to the outer wall of the motor; the limiting ring is located between the power mechanism and the end of the motor.

[0012] Preferably, the heat-absorbing kit comprises a detachable multi-section shell, with adjacent shell joint surfaces sealed and connected by a sealing ring and internally interconnected; the upper and lower ends of the heat-absorbing kit are fixedly connected to the first pipe and the second pipe, respectively.

[0013] Preferably, the telescopic assembly includes a pair of telescopic tubes, a pair of limiting discs, and a pair of telescopic rods; the upper and lower sides of the telescopic tubes are respectively connected to the first pipe and the second pipe, and one-way valves are respectively provided at the connection points to control the flow direction; the pair of limiting discs are fixedly connected to the ends of the telescopic tubes, and the telescopic rods are fixedly connected to the middle of the limiting discs; the pair of telescopic tubes are staggered vertically.

[0014] Preferably, the first pipe is a rectangular flat pipe.

[0015] Preferably, the power mechanism includes a planetary gear assembly and a pair of drive rings; the motor shaft passes through the middle of the planetary gear assembly and is fixedly connected, and the pair of drive rings are fixedly connected to the outer wall of the planetary gear assembly; the drive rings are arranged above and below the telescopic tube; a sliding groove is provided in the middle of the outer wall of the drive ring for the telescopic rod to slide.

[0016] Preferably, the width of the drive ring gradually increases from one side to the other, creating a groove depth difference in the sliding groove, so that when the drive ring rotates, it can drive the telescopic tube to extend and retract through the telescopic rod; the maximum width of a pair of drive rings is set in opposite positions, and the groove depth difference matches the extension and retraction distance of the telescopic rod and the telescopic tube.

[0017] Preferably, the limiting ring is fixedly connected to a clamping device via a support rod extending from the outer wall; the clamping device includes a sliding tube with a U-shaped groove, a pair of clamping members slidably connected to the U-shaped groove, a pair of transmission rods with one end cross-meshing, and a limiting member; the other end of the transmission rod passes through the clamping member and is threadedly connected, and the limiting member is rotatably connected to the side of the sliding tube to restrict the axial movement of the transmission rod; the clamping member contacts the outer side of the belt.

[0018] Preferably, the clamping element includes a swivel ring, a clamping rod, and a sliding block. The swivel ring contacts the outer side of the belt and is rotatably connected to the clamping rod. The upper end of the clamping rod is fixedly connected to the sliding block, which matches the U-shaped groove. The protrusions on both sides of the outer wall of the sliding block are slidably connected to the grooves on the inner wall of the sliding tube.

[0019] Preferably, the transmission rod is threadedly connected to the sliding block, and the transmission rod has an annular groove on its outer wall where no threads are present.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This application achieves efficient circulating heat dissipation by incorporating a cooling device. A power mechanism drives the expansion and contraction of the telescopic pipe, combined with a one-way valve design, to achieve directional circulating flow of the fluid, effectively and continuously dissipating heat from the motor. The heat absorption kit encloses the motor in a casing, increasing the contact area between the fluid and the motor, improving heat absorption and dissipation efficiency. Especially during high-load dehydration, it automatically accelerates fluid circulation, ensuring stable motor temperature control. The casing is a multi-section, detachable design, facilitating installation, maintenance, and replacement from the outside of the motor.

[0022] The drive ring and planetary gear assembly work together to dynamically adapt the fluid circulation rate to the motor speed. During washing, the low speed corresponds to the low heat dissipation requirement, while during spin-drying, the high speed simultaneously enhances heat dissipation, avoiding energy waste, reducing the extra energy consumption caused by motor overheating, and effectively achieving energy saving.

[0023] The clamping device, which links the transmission rod and the rotating ring, can adjust the belt tension, avoid insufficient friction caused by belt aging, reduce motor idling losses, ensure washing effect, further reduce the risk of overheating, and extend the service life of the motor and belt. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the connection between the cooling device and the motor of the present invention;

[0026] Figure 3 This is a disassembly diagram of the heat-absorbing kit and motor of the present invention;

[0027] Figure 4 This is a cross-sectional view of the connection between the motor and the heat-absorbing kit of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection between the telescopic pipe fitting and the first and second pipes of the present invention;

[0029] Figure 6 This is a structural disassembly diagram of the power mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged view of the structure at the sliding groove at point A;

[0031] Figure 8 This is a top view of the drive ring of the present invention;

[0032] Figure 9 This is an anatomical diagram of the clamping device structure of the present invention;

[0033] Figure 10 This is a schematic diagram of the connection between the clamping device and the belt in this invention.

[0034] In the diagram: 1. Housing, 2. Inner barrel, 3. Motor, 31. Limiting ring, 32. Support rod, 4. Clutch, 5. Cooling device, 51. Heat absorption kit, 511. First housing, 512. Second housing, 513. Third housing, 52. First pipe, 53. Telescopic fitting, 531. Telescopic tube, 532. Limiting disc, 533. Telescopic rod, 5331. Rotating rod, 54. Power mechanism, 541. Planetary gear assembly, 5411. External gear ring, 542. Drive ring, 5421. Sliding groove, 55. Second pipe, 6. Clamping device, 61. Sliding tube, 62. Clamping piece, 621. Rotating ring, 622. Clamping rod, 623. Sliding block, 63. Transmission rod, 64. Limiting piece. Detailed Implementation

[0035] Example 1:

[0036] Please see Figures 1-8 The present invention provides a technical solution: such as Figures 1-2 As shown, a washing machine energy-saving optimized motor includes a motor 3, a clutch 4, and a cooling device 5. Both the motor 3 and the clutch 4 are installed at the bottom of the inner tub 2 of the washing machine; and a casing 1 is provided outside the inner tub 2 to enclose it. The motor 3 and the clutch 4 are connected by a transmission. The cooling device 5 is fitted onto the outer wall of the motor 3 to absorb the heat generated by the motor 3, thereby achieving cooling.

[0037] The cooling device 5 includes a heat-absorbing assembly 51, a first pipe 52, a telescopic tube 53, a power mechanism 54, and a second pipe 55. The heat-absorbing assembly 51 is fitted onto the outer wall of the motor 3. Both ends of the telescopic tube 53 are fixedly connected to and communicate with one end of the first pipe 52 and the second pipe 55, respectively. The upper and lower sides of the heat-absorbing assembly 51 are fixedly connected to and communicate with the other ends of the first pipe 52 and the second pipe 55, forming an internal flow channel for fluid flow together with the telescopic tube 53. The power mechanism 54 is fixedly connected to the rotating shaft of the motor 3 and slidably connected to the telescopic tube 53. It is used to squeeze the telescopic tube 53, forcing the fluid in the telescopic tube 53 to flow through the first pipe 52 into the heat-absorbing assembly 51, thereby causing the fluid in the heat-absorbing assembly 51 to flow through the second pipe 55 into the telescopic tube 53, thus forming a circulating flow of fluid to cool the motor 3.

[0038] A limiting ring 31 is fitted on the outer wall of the shaft of motor 3, and the limiting ring 31 is fixedly connected to the outer wall of motor 3. The limiting ring 31 is located between the power mechanism 54 and the end of motor 3.

[0039] like Figures 3-4 As shown, the heat-absorbing kit 51 comprises detachable multi-section housings (first housing 511, second housing 512, and third housing 513), with adjacent housing joint surfaces sealed together by sealing rings and internally interconnected. Specifically, the second housing 512 is fitted onto the middle of the outer wall of the motor 3; the first housing 511 is fitted onto the outer wall of the motor 3 located above the second housing 512, and the first housing 511 is fixedly connected to the first pipe 52; the third housing 513 is fitted onto the outer wall of the motor 3 located below the second housing 512. The second housing 512, the first housing 511, and the third housing 513 are detachably and fixedly connected, and internally interconnected. An injection port is provided on the outer wall of any housing for fluid injection and to expel air from the flow channel. The housings are made of a material with high thermal conductivity, and the fluid is preferably a coolant with excellent heat absorption / dissipation properties.

[0040] like Figures 5-8 As shown, the telescopic assembly 53 includes a pair of telescopic tubes 531, a pair of limiting discs 532, and a pair of telescopic rods 533. The interior of the telescopic tubes 531 is the telescopic cavity. The ends of the first pipe 52 and the second pipe 55 that connect to the telescopic assembly 53 each form two connection ends; the connection end of the second pipe 55 is fixedly connected to the lower proximal end of the telescopic tube 531 near the motor 3, and the first pipe 52 is fixedly connected to the upper proximal end of the telescopic tube 531. Each connection end is equipped with a one-way valve to prevent backflow of fluid. The pair of limiting discs 532 are correspondingly fixedly connected to the proximal ends of the telescopic tubes 531, and the telescopic rods 533 are fixedly connected to the middle of the limiting discs 532. The pair of telescopic tubes 531 are staggered vertically.

[0041] The first pipe 52 is a rectangular flat pipe. Without changing the fluid flow rate, the flow area of ​​the fluid in the first pipe 52 is increased, thereby improving the heat dissipation effect.

[0042] The first pipe 52 is a rigid pipe, such as a metal pipe with good heat dissipation; a support plate is fixedly connected to the outside of the first pipe 52 to improve stability. The second pipe 55 is a flexible pipe. The telescopic pipe 531 has a certain degree of rigidity, such as a corrugated pipe.

[0043] The power mechanism 54 includes a planetary gear assembly 541 and a pair of vertically distributed drive rings 542. The shaft of the motor 3 passes through the planetary gear assembly 541 and is fixedly connected to the sun gear. The pair of drive rings 542 are fixedly connected to the outer wall of the outer gear ring 5411 of the planetary gear assembly 541. The planetary gear assembly 541 reduces the rotational speed of the drive rings 542 and increases the torque. The planetary gear assembly 541 here is a conventional technology, and the transmission ratio between the motor 3 shaft and the outer gear ring 5411 can be adjusted according to actual needs, which will not be elaborated further.

[0044] A sliding groove 5421 is formed in the middle of the outer wall of the drive ring 542. A rotating rod 5331 is rotatably connected to the end of the telescopic rod 533, and the rotating rod 5331 is slidably connected in the sliding groove 5421. The ring width of the drive ring 542 gradually increases from one side to the other, so that the sliding groove 5421 forms a groove depth difference. When the drive ring 542 rotates, it can drive the telescopic tube 531 to extend and retract through the telescopic rod 533, thereby squeezing the fluid in the telescopic tube 531 into the first pipe 52. The maximum width of the pair of drive rings 542 is set in opposite positions, and the groove depth difference matches the extension distance of the telescopic rod 533 and the telescopic tube 531.

[0045] Working principle: The operator starts motor 3, and the washing machine begins to work. The shaft of motor 3 drives the planetary gear assembly 541 and drive ring 542 to rotate. The widest side of drive ring 542 is defined as the wide side, and the narrowest side is defined as the narrow side.

[0046] When the upper drive ring 542 rotates half a turn from the narrow side to the wide side at the rotating rod 5331, it will drive the corresponding telescopic rod 533, the limiting plate 532 and the upper telescopic tube 531 (the upper telescopic tube 531 is the telescopic tube 531 corresponding to the upper drive ring 542) to be pulled away from the rotating shaft of the motor 3, and the upper telescopic tube 531 is in a state of being gradually compressed; at the same time, the lower drive ring 542 rotates from the wide side to the narrow side at the rotating rod 5331, driving the corresponding telescopic rod 533, the limiting plate 532 and the lower telescopic tube 531 (the lower telescopic tube 531 is the telescopic tube 531 corresponding to the lower drive ring 542) to be moved closer to the rotating shaft of the motor 3, and the corresponding lower telescopic tube 531 is in a state of being gradually stretched. When the upper telescopic tube 531 is in a compressed state, under the restriction of the one-way valve, the fluid in the upper telescopic tube 531 can only flow into the heat absorption kit 51 through the first pipe 52, thereby forcing a portion of the original fluid in the heat absorption kit 51 to flow into the lower telescopic tube 531, which is being gradually stretched, through the second pipe 55. Meanwhile, less fluid flows into the upper telescopic tube 531, which is in a compressed state, thus completing the first circulation of the fluid.

[0047] When the upper and lower drive rings 542 begin to rotate the second half-turn, the corresponding upper telescopic tube 531 begins to be stretched, and the lower telescopic tube 531 begins to be compressed. At this time, the lower telescopic tube 531 also forces the fluid into the heat-absorbing kit 51, and forces part of the original fluid in the heat-absorbing kit 51 to flow into the upper telescopic tube 531, thus completing the second circulation of the fluid. This alternating fluid circulation occurs. When the fluid flows to the first housing 511, the second housing 512, and the third housing 513, it absorbs the heat generated by the motor 3. When it flows through the first pipe 52, the telescopic tube 53, and the second pipe 55, it exchanges heat with the outside air and releases heat. The alternating fluid circulation cools the motor 3. When the shaft of the motor 3 rotates, the limiting ring 31 also prevents the shaft from deforming.

[0048] When the washing machine is in the washing state, the shaft speed of motor 3 is slow, and the fluid circulation is also slow, resulting in less heat generated by motor 3. When the washing machine is in the spin-drying state, the shaft speed of motor 3 is fast, and motor 3 heats up quickly. Similarly, the fluid circulation is also accelerated to cool motor 3, thereby ensuring that motor 3 is always in a normal temperature environment, reducing energy consumption, reducing wear and tear, and extending service life.

[0049] Example 2:

[0050] Please see Figures 1-2 and Figures 9-10 Based on Embodiment 1, a support rod 32 extends from the outer wall of the limiting ring 31 toward the clutch 4, and a clamping device 6 is fixedly connected to the support rod 32. A belt is provided between the rotating shaft of the motor 3 and the clutch 4, and the rotating shaft of the motor 3 and the clutch 4 are connected by belt drive.

[0051] The clamping device 6 includes a sliding tube 61 with a U-shaped groove, a pair of clamping members 62, a pair of transmission rods 63, and a pair of limiting members 64. The clamping members 62 are slidably connected to the U-shaped groove and contact the outer side of the belt. The transmission rods 63 are respectively threaded to the clamping members 62, and the pair of transmission rods 63 are meshed together. The transmission rods 63 drive the clamping members 62 to move towards each other along the length of the sliding tube 61, thereby clamping the belt and keeping the belt in a relatively taut state.

[0052] The clamping member 62 includes a swivel ring 621, a clamping rod 622, and a sliding block 623. The swivel ring 621 contacts the outer side of the belt and is rotatably connected to the outer wall of the clamping rod 622 near its lower end to reduce the resistance applied to the belt. The upper end of the clamping rod 622 is fixedly connected to the sliding block 623, which matches the U-shaped groove of the sliding tube 61. The protrusions on both sides of the outer wall of the sliding block 623 are slidably connected to the grooves on the inner wall of the sliding tube 61.

[0053] The transmission rod 63 is threadedly connected to the sliding block 623. The transmission rod 63 has an annular groove 631 on its unthreaded outer wall for matching with the limiting member 64. The limiting member 64 is rotatably connected to the side of the sliding tube 61 and can be locked in the annular groove 631 to restrict the movement of the transmission rod 63 along the length of the sliding tube 61.

[0054] Working principle: When the belt becomes loose, rotating one of the transmission rods 63 drives the other transmission rod 63 to rotate synchronously, thereby driving a pair of sliding blocks 623 to move towards each other. The sliding blocks 623 drive the clamping rod 622 and the rotating ring 621 to move synchronously, so that the belt becomes tight again.

Claims

1. An energy-saving optimized electric motor for washing machines, characterized in that: Includes a motor (3), a clutch (4), and a cooling device (5); the motor (3) and the clutch (4) are both installed at the bottom of the inner tub (2) of the washing machine, and the motor (3) and the clutch (4) are connected by belt drive; the cooling device (5) is fitted on the outer wall of the motor (3); The cooling device (5) includes a heat-absorbing kit (51) fitted on the outer wall of the motor (3), a first pipe (52), a telescopic pipe (53), a power mechanism (54), and a second pipe (55); The two ends of the telescopic tube (53) are fixedly connected to one end of the first pipe (52) and the second pipe (55) respectively, and the upper and lower sides of the heat absorption kit (51) are connected to the other ends of the first pipe (52) and the second pipe (55) respectively, forming an internal flow channel for fluid flow together with the two telescopic cavities inside the telescopic tube (53); the power mechanism (54) is fixedly connected to the shaft of the motor (3) and slidably connected to the telescopic tube (53), and is used to squeeze the telescopic tube (53), forcing the fluid in the telescopic tube (53) to flow unidirectionally into the heat absorption kit (51) through the first pipe (52), so that the fluid in the heat absorption kit (51) then flows unidirectionally into the telescopic tube (53) through the second pipe (55), thereby forming a circulating flow of fluid to cool the motor (3); The telescopic assembly (53) includes a pair of telescopic tubes (531), a pair of limiting discs (532), and a pair of telescopic rods (533); the upper and lower sides of the telescopic tubes (531) are respectively connected to the first pipe (52) and the second pipe (55), and one-way valves are respectively installed at the connection points to control the flow direction; the pair of limiting discs (532) are fixedly connected to the ends of the telescopic tubes (531), and the telescopic rods (533) are fixedly connected to the middle of the limiting discs (532); the pair of telescopic tubes (531) are staggered vertically. The power mechanism (54) includes a planetary gear assembly (541) and a pair of drive rings (542); the shaft of the motor (3) passes through the middle of the planetary gear assembly (541) and is fixedly connected, and the pair of drive rings (542) are fixedly connected to the outer wall of the planetary gear assembly (541); the drive rings (542) are arranged vertically and vertically corresponding to the telescopic tube (531); a sliding groove (5421) is provided in the middle of the outer wall of the drive ring (542) for the telescopic rod (533) to slide and connect; The width of the drive ring (542) gradually increases from one side to the other, so that the sliding groove (5421) forms a groove depth difference, so that when the drive ring (542) rotates, it can drive the telescopic tube (531) to move in extension and retraction through the telescopic rod (533); the maximum width of the pair of drive rings (542) is set in opposite positions, and the groove depth difference matches the extension and retraction distance of the telescopic rod (533) and the telescopic tube (531).

2. The washing machine energy-saving optimized motor according to claim 1, characterized in that: A limiting ring (31) is fitted on the outer wall of the shaft of the motor (3), and the limiting ring (31) is fixedly connected to the outer wall of the motor (3); the limiting ring (31) is located between the power mechanism (54) and the end of the motor (3).

3. The washing machine energy-saving optimized motor according to claim 1, characterized in that: The heat absorption kit (51) consists of a detachable multi-section shell, with adjacent shell joint surfaces sealed and connected by a sealing ring and internally connected; the upper and lower ends of the heat absorption kit (51) are fixedly connected to the first pipe (52) and the second pipe (55) respectively.

4. The washing machine energy-saving optimized motor according to claim 1, characterized in that: The first pipe (52) is a rectangular flat pipe.

5. The washing machine energy-saving optimized motor according to claim 2, characterized in that: The limiting ring (31) is fixedly connected to the clamping device (6) via the support rod (32) extending from the outer wall; the clamping device (6) includes a sliding tube (61) with a U-shaped groove, a pair of clamping members (62) slidably connected to the U-shaped groove, a pair of transmission rods (63) with one end cross-meshing, and a limiting member (64); the other end of the transmission rod (63) passes through the clamping member (62) and is threadedly connected, and the limiting member (64) is rotatably connected to the side of the sliding tube (61) to restrict the axial movement of the transmission rod (63); the clamping member (62) contacts the outside of the belt.

6. The washing machine energy-saving optimized motor according to claim 5, characterized in that: The clamping component (62) includes a swivel (621), a clamping rod (622), and a sliding block (623). The swivel (621) contacts the outer side of the belt, and the swivel (621) is rotatably connected to the clamping rod (622). The upper end of the clamping rod (622) is fixedly connected to the sliding block (623), which matches the U-shaped groove. The protrusions on both sides of the outer wall of the sliding block (623) are slidably connected to the grooves on the inner wall of the sliding tube (61).

7. The washing machine energy-saving optimized motor according to claim 6, characterized in that: The transmission rod (63) is threadedly connected to the sliding block (623), and the transmission rod (63) has an annular groove (631) on its unthreaded outer wall.

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