CN214007534U - Household appliance drainage pump with low energy consumption and high reliability - Google Patents
Household appliance drainage pump with low energy consumption and high reliability Download PDFInfo
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- CN214007534U CN214007534U CN202023013754.0U CN202023013754U CN214007534U CN 214007534 U CN214007534 U CN 214007534U CN 202023013754 U CN202023013754 U CN 202023013754U CN 214007534 U CN214007534 U CN 214007534U
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Abstract
The utility model discloses a domestic appliance drain pump that low energy consumption reliability is high, it includes the motor housing subassembly and is located the rotor subassembly of motor housing subassembly, the rotor subassembly includes that the magnetic ring moulds plastics the subassembly, the shaft coupling moulds plastics the subassembly and the yielding rubber, the shaft coupling mould plastics the subassembly and passes the magnetic ring subassembly of moulding plastics, the magnetic ring subassembly of moulding plastics is including the portion of moulding plastics and magnet portion, the portion one end of moulding plastics is provided with the portion inner chamber of moulding plastics, the portion inner chamber of moulding plastics is formed with spacing muscle, the shaft coupling subassembly of moulding plastics includes motor shaft and shaft coupling, the shaft coupling is located the portion inner chamber of moulding plastics and moulds plastics on the motor shaft, the one end riveting of motor shaft has the impeller. The utility model provides a domestic appliance drain pump that low energy consumption reliability is high reduces the mechanical loss in the drain pump working process, prolongs drain pump life, improves the work efficiency of drain pump, ensures good startability and low noise simultaneously.
Description
Technical Field
The utility model relates to a domestic appliance drain pump that low energy consumption reliability is high.
Background
At present, with the market competition of the household appliance industry, the comprehensive functions of the products are gradually taken into consideration in the whole factory. In the household electrical appliance, the service life, energy conservation and silence are always the main factors.
The U-type ac permanent magnet synchronous motor is a drainage device commonly used in household appliances such as washing machines and dishwashers, and the drainage device is also often called as a drainage pump, but the structure of the drainage pump in the prior art has many problems:
1. the idle stroke angle of the existing drainage pump is usually less than 250 degrees, so that the idle stroke of a starting part is small, enough starting kinetic energy cannot be obtained, the low-voltage starting performance is poor, and more ferromagnetic materials are required to be used for improving the starting performance.
2. The traditional motor iron core is overlapped thick and is 20-40 mm, the weight of an enameled wire is more than 40g, iron loss and copper loss are large, working efficiency is low, input power is large, and electricity is wasted.
3. Because the traditional design only sets up the card sealing washer on the motor shaft of magnetic ring subassembly one side of moulding plastics, there is the clearance radially between subassembly and the motor shaft of moulding plastics of one side magnetic ring that does not have the card sealing washer in this kind of design, and the high-speed rotation of during operation rotor subassembly will take place to beat between subassembly is moulded plastics to motor shaft and magnetic ring, and then produces big vibration and vibration noise.
4. Rely on interference fit between the part to seal and start intracavity grease, the big part of magnitude of interference is cracked easily, and the magnitude of interference is little, and the part circularity is not high makes both fitting surfaces local existence laminating inseparable, leads to the grease to run off, and the grease runs off can cause the noise to reduce simultaneously and starts the chamber part life-span.
5. The damping rubber is cylindrical or horseshoe-shaped, the damping rubber has weak capacity of buffering force, and the starting noise is large.
Disclosure of Invention
The utility model aims to solve the technical problem that, overcome prior art not enough, provide a high domestic appliance drain pump of low energy consumption reliability, reduce the mechanical loss in the drain pump working process, prolong drain pump life, improve the work efficiency of drain pump, ensure good startability and low noise simultaneously.
In order to solve the technical problem, the technical scheme of the utility model is that:
a low-energy-consumption high-reliability drainage pump for household appliances comprises a motor shell assembly and a rotor assembly positioned in the motor shell assembly, the rotor component comprises a magnetic ring injection molding component, a coupler injection molding component and damping rubber, the coupler injection molding component penetrates through the magnetic ring injection molding component, the magnetic ring injection molding component comprises an injection molding part and a magnet part, an inner cavity of the injection molding part is arranged at one end of the injection molding part, the inner cavity of the injection molding part is provided with a limiting rib, the coupling injection molding assembly comprises a motor shaft and a coupling, the shaft coupling is positioned in the inner cavity of the injection molding part and is injected on the motor shaft, damping rubber is arranged between the shaft coupling and the limiting rib, the coupler and the damping rubber are sealed in an inner cavity of the injection molding part through a clamping piece, and the idle stroke angle formed by the limiting rib, the damping rubber and the coupler when the drainage pump is started is 310-440 degrees.
Further, the coupler comprises a tubular main body and a starting rib protruding outwards from the outer wall of the tubular main body, and the pan head extends out of the end faces of the tubular main body and the starting rib.
Further, the outer ring part of the magnet part is exposed outside, and the rest part of the magnet part is wrapped by the injection molding part.
Further, the magnet part is a whole permanent magnet, and the length A of the exposed outer ring part of the magnet part is 24-28 mm.
Further, spacing muscle is along the radial outside salient of the portion inner chamber of moulding plastics, the both sides terminal surface of spacing muscle is provided with a pair of spacing wall, spacing wall is suitable for restriction yielding rubber's slip region.
Further, an angle a formed by the outer contour of the limiting rib along the circumferential direction is greater than or equal to 80 degrees and less than or equal to 100 degrees, an angle b formed by the outer contour of the shock absorption rubber along the circumferential direction is greater than or equal to 90 degrees and less than or equal to 140 degrees, an angle c formed by the outer contour of the coupler along the circumferential direction is greater than or equal to 20 degrees and less than or equal to 30 degrees, and the idle stroke angle satisfies the following formula:
idle stroke angle ═ (360-b-c) + (360-a-b).
Further, an angle a formed by the limiting rib along the outer contour in the circumferential direction is 90 degrees, an angle b formed by the damping rubber along the outer contour in the circumferential direction is 100 degrees or 135 degrees, an angle c formed by the coupler along the outer contour in the circumferential direction is 25 degrees, and the idle stroke angle is 335 degrees or 405 degrees.
Further, the damping rubber is of a horseshoe-shaped structure and comprises a starting portion and an end face portion.
Further, all be provided with the card sealing washer on the motor shaft at the portion both ends of moulding plastics, the both ends of the portion of moulding plastics all are provided with the holding tank that is used for holding the card sealing washer.
Further, be provided with welding face and card guide angle on the card, set up the welding groove on the portion of moulding plastics and mould plastics the guide angle, the card passes through ultrasonic bonding with the portion of moulding plastics.
Further, an impeller is fixed at one end of the motor shaft.
Further, an iron core and a coil assembly are arranged on the side wall of the motor shell assembly.
Further, the lamination thickness B of the iron core is 8-13 mm, and the weight of the enameled wire in the coil assembly is 30-38 g.
Further, the lamination thickness B of the iron core is 13mm, and the weight of the enameled wire in the coil assembly is 34 g.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
1. the utility model discloses a actuating mechanism is constituteed to portion of moulding plastics, yielding rubber, shaft coupling and motor shaft, has increased actuating mechanism's idle stroke angle, can guarantee that the motor keeps good startability.
2. The utility model discloses reduced folding of iron core thick, made the enameled wire quantity reduce, can reduce the copper and consume, the iron core folds thick and reduces and can reduce the iron loss, and then has promoted the work efficiency of drainage pump, has reduced the energy consumption.
3. The utility model discloses a both ends at the portion of moulding plastics all set up the card sealing washer, reduce the motor shaft and the magnetic ring and mould plastics the radial momentum of shaking between the subassembly, are favorable to eliminating the vibration that produces between motor shaft and the magnetic ring subassembly of moulding plastics to reduce the vibration noise.
4. The utility model discloses set up the guide angle on card and magnetic ring subassembly of moulding plastics, be favorable to guaranteeing the card and the magnetic ring concentricity between the subassembly of moulding plastics, further be favorable to the even running of motor.
Drawings
FIG. 1 is an exploded view of a household appliance drain pump of the present invention with low power consumption and high reliability;
fig. 2 is an exploded view of the rotor assembly of the present invention;
fig. 3 is a front view of the rotor assembly of the present invention;
fig. 4 is an exploded view of the rotor assembly of the present invention;
fig. 5 is a schematic view of the internal structure of the rotor assembly of the present invention;
fig. 6 is a schematic structural view of the coupling injection molding assembly of the present invention;
fig. 7 is a schematic structural diagram of the coupling of the present invention;
fig. 8 is a schematic structural view of the magnetic ring injection molding assembly of the present invention;
fig. 9 is a side view of the magnetic ring injection molding assembly of the present invention;
FIG. 10 is a schematic view of the internal structure of FIG. 9;
FIG. 11 is a schematic structural view of the inner cavity of the injection molding part of the present invention;
FIG. 12 is a schematic structural view of the cushion rubber of the present invention;
fig. 13 is a schematic structural view of the idle stroke angle of the present invention;
fig. 14 is a schematic structural view of the iron core of the present invention;
fig. 15 is a front view of the magnetic ring injection molding assembly of the present invention;
FIG. 16 is a cross-sectional view of a discharge pump for household appliances of the present invention with low power consumption and high reliability;
FIG. 17 is an enlarged view of portion I of FIG. 16;
FIG. 18 is an enlarged view of section II of FIG. 16;
fig. 19 is a sectional view of the magnetic ring injection molding assembly of the present invention;
FIG. 20 is an enlarged view of section III of FIG. 19;
fig. 21 is a front view of the card of the present invention;
fig. 22 is a top view of the magnetic ring injection molding assembly of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 to 22, a drain pump for a household appliance with low power consumption and high reliability comprises a motor housing assembly 1, a rotor assembly 2 located in the motor housing assembly 1, and an iron core 3 and a coil assembly 4 located on a side wall of the motor housing assembly 1, wherein when the coil assembly 4 is powered on, an alternating magnetic field generated by a coil drives the rotor assembly 2 to rotate in a certain direction through the iron core 3.
As shown in fig. 2 to 22, the rotor assembly 2 includes a magnetic ring injection molding assembly 21, a coupling injection molding assembly 22 and a damping rubber 23, the coupling injection molding assembly 22 passes through the magnetic ring injection molding assembly 21, the damping rubber 23 is of a horseshoe-shaped structure, and the damping rubber 23 includes a start portion 231 and an end surface portion 232;
the magnetic ring injection molding assembly 21 comprises an injection molding part 211 and a magnet part 212, wherein one end of the injection molding part 211 is provided with an inner cavity of the injection molding part 211, a limiting rib 213 is formed in the inner cavity of the injection molding part 211, the limiting rib 213 protrudes outwards along the radial direction of the inner cavity of the injection molding part 211, two side end faces of the limiting rib 213 are provided with a pair of limiting walls 215, and the limiting walls 215 are suitable for limiting the sliding area of the damping rubber 23;
the coupling injection molding assembly 22 comprises a motor shaft 221 and a coupling 222, the coupling 222 is located in an inner cavity of the injection molding part 211 and is injected on the motor shaft 221, one end of the motor shaft 221 is riveted with an impeller 5, a bearing assembly 9 is fixed below the impeller 5, a damping rubber 23 is arranged between the coupling 222 and a limiting rib 213, the coupling 222 and the damping rubber 23 are sealed in the inner cavity of the injection molding part 211 through a card 6, the coupling 222 comprises a tubular main body 223 and a starting rib 224 protruding outwards from the outer wall of the tubular main body 223, and the end faces of the tubular main body 223 and the starting rib 224 extend out of a disc head 225.
After the coil assembly 4 is electrified, acting force is generated on the magnetic ring injection molding assembly 21, the limiting wall 215 on the limiting rib 213 of the magnetic ring injection molding assembly 21 pushes the starting part 231 of the damping rubber 23, the damping rubber 23 slides in the inner cavity of the injection molding part 211 of the magnetic ring injection molding assembly 21 under the thrust until the starting part 231 of the damping rubber 23 impacts the starting rib 224 of the coupling injection molding assembly 22, and the impeller 5 is thermally riveted with the motor shaft 221, so that the impeller 5 rotates.
As shown in fig. 9 and 10, the outer ring portion 214 of the magnet portion 212 is exposed, and the rest of the magnet portion 212 is wrapped by the injection molded portion 211. The magnet portion 212 is a one-piece permanent magnet, and the length A of the exposed outer ring portion 214 of the magnet portion 212 is 24-28 mm, preferably 26 mm.
As shown in fig. 13, the angle formed by the limiting rib 213 in the inner cavity of the injection part 211 along the outer contour in the circumferential direction is a, wherein a is greater than or equal to 80 degrees and less than or equal to 100 degrees, preferably 90 degrees;
the angle formed by the outer contour of the shock absorption rubber 23 along the circumferential direction is b, wherein b is more than or equal to 90 degrees and less than or equal to 140 degrees, and preferably is 100 degrees or 135 degrees;
the angle formed by the outer contour of the coupler 222 along the circumferential direction is c, wherein c is more than or equal to 20 degrees and less than or equal to 30 degrees, and preferably is 25 degrees;
the idle stroke angle satisfies the following formula:
idle stroke angle ═ (360-b-c) + (360-a-b).
The idle stroke angle refers to the maximum angle when the limiting rib on the rotor rotates to the shock absorption rubber and the coupler to collide in the starting process of the drainage pump. The idle stroke angle ranges from 310 ° to 440 °, preferably 335 ° or 405 °. The idle stroke angle of traditional motor is less than 250, the utility model discloses an idle stroke angle is 310 ~ 440, can improve the startability of motor. Because the iron core folds thick shortening and the enameled wire quantity reduces and can lead to starting torque to diminish to reduce low pressure startability, the utility model discloses an increase idle stroke angle, when making the start-up, spacing muscle 213, yielding rubber 23 and shaft coupling 222 possess sufficient start-up stroke, can guarantee that the motor keeps good startability.
As shown in FIG. 1, the weight of the enameled wire in the coil assembly 4 is 30-38 g, preferably 34 g. Traditional motor core folds thick folding and is 20 ~ 40mm, the utility model discloses an iron core folds thick 8 ~ 13mm, preferred 13mm, and the quantity of enameled wire is also less than traditional motor, thereby has saved the weight of iron core 3's material and enameled wire and has reached reduce cost's purpose.
As shown in fig. 15 to 22, the motor shafts 221 at the two ends of the injection molding part 211 are respectively provided with a card sealing ring 7, and the two ends of the injection molding part 211 are respectively provided with an accommodating groove 8 for accommodating the card sealing ring 7, so that radial shaking generated in the balance working process is facilitated.
As shown in fig. 19 to 22, the card 6 is provided with a welding surface 61 and a card guide angle 62, the injection part 211 is provided with a welding groove 216 and an injection guide angle 217, and the card 6 and the injection part 211 are ultrasonically welded. Adopt ultrasonic bonding to make card and magnetic ring mould plastics firm bonding of subassembly and be in the same place, prevent to start intracavity grease and follow card and magnetic ring and mould plastics the gap of subassembly and run off, further can prolong the life of motor.
The above embodiments further describe the technical problems, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. The utility model provides a domestic appliance drain pump that low energy consumption reliability is high which characterized in that: the motor comprises a motor shell assembly (1) and a rotor assembly (2) located in the motor shell assembly (1), wherein the rotor assembly (2) comprises a magnetic ring injection molding assembly (21), a coupler injection molding assembly (22) and damping rubber (23), the coupler injection molding assembly (22) penetrates through the magnetic ring injection molding assembly (21), the magnetic ring injection molding assembly (21) comprises an injection molding part (211) and a magnet part (212), one end of the injection molding part (211) is provided with an inner cavity of the injection molding part (211), a limiting rib (213) is formed in the inner cavity of the injection molding part (211), the coupler injection molding assembly (22) comprises a motor shaft (221) and a coupler (222), the coupler (222) is located in the inner cavity of the injection molding part (211) and is injected on the motor shaft (221), the damping rubber (23) is arranged between the coupler (222) and the limiting rib (213), and the coupler (222) and the damping rubber (23) are sealed in the inner cavity of the injection molding part (211) through a card (6), the idle stroke angle formed by the limiting rib (213), the shock absorption rubber (23) and the coupler (222) when the drainage pump is started is 310-440 degrees.
2. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: the coupler (222) comprises a tubular main body (223) and an actuating rib (224) protruding outwards from the outer wall of the tubular main body (223), and the end faces of the tubular main body (223) and the actuating rib (224) extend out of a pan head (225).
3. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: the magnet part is characterized in that an outer ring part (214) of the magnet part (212) is exposed outside, the rest part of the magnet part (212) is wrapped by an injection molding part (211), the magnet part (212) is a whole piece of permanent magnet, and the length A of the exposed outer ring part (214) of the magnet part (212) is 24-28 mm.
4. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: the limiting rib (213) protrudes outwards along the radial direction of the inner cavity of the injection molding part (211), a pair of limiting walls (215) are arranged on the end faces of two sides of the limiting rib (213), and the limiting walls (215) are suitable for limiting the sliding area of the damping rubber (23).
5. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: the angle a formed by the outer contour of the limiting rib (213) along the circumferential direction is more than or equal to 80 degrees and less than or equal to 100 degrees, the angle b formed by the outer contour of the shock absorption rubber (23) along the circumferential direction is more than or equal to 90 degrees and less than or equal to 140 degrees, the angle c formed by the outer contour of the coupling (222) along the circumferential direction is more than or equal to 20 degrees and less than or equal to 30 degrees, and the idle stroke angle satisfies the following formula:
idle stroke angle ═ (360-b-c) + (360-a-b).
6. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 5, characterized in that: the angle a formed by the outer contour of the limiting rib (213) along the circumferential direction is 90 degrees, the angle b formed by the outer contour of the shock absorption rubber (23) along the circumferential direction is 100 degrees or 135 degrees, the angle c formed by the outer contour of the coupling (222) along the circumferential direction is 25 degrees, and the idle stroke angle is 335 degrees or 405 degrees.
7. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: the damping rubber (23) is of a horseshoe-shaped structure, and the damping rubber (23) comprises a starting portion (231) and an end surface portion (232).
8. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: all be provided with card sealing washer (7) on motor shaft (221) at portion (211) both ends of moulding plastics, the both ends of portion (211) of moulding plastics all are provided with holding tank (8) that are used for holding card sealing washer (7).
9. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: be provided with face of weld (61) and card guide angle (62) on card (6), be provided with weld groove (216) and injection molding guide angle (217) on the portion of moulding plastics (211), card (6) passes through ultrasonic bonding with the portion of moulding plastics (211).
10. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: an impeller (5) is fixed at one end of the motor shaft (221).
11. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 1, characterized in that: and an iron core (3) and a coil assembly (4) are arranged on the side wall of the motor shell assembly (1).
12. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 11, characterized in that: the lamination thickness B of the iron core (3) is 8-13 mm, and the weight of the enameled wire in the coil assembly (4) is 30-38 g.
13. A household appliance drain pump with low energy consumption and high reliability as claimed in claim 12, characterized in that: the stacking thickness B of the iron core (3) is 13mm, and the weight of the enameled wire in the coil assembly (4) is 34 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023013754.0U CN214007534U (en) | 2020-12-15 | 2020-12-15 | Household appliance drainage pump with low energy consumption and high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023013754.0U CN214007534U (en) | 2020-12-15 | 2020-12-15 | Household appliance drainage pump with low energy consumption and high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214007534U true CN214007534U (en) | 2021-08-20 |
Family
ID=77312748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023013754.0U Active CN214007534U (en) | 2020-12-15 | 2020-12-15 | Household appliance drainage pump with low energy consumption and high reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214007534U (en) |
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2020
- 2020-12-15 CN CN202023013754.0U patent/CN214007534U/en active Active
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