CN216040282U - Drainage motor installation part, drainage motor assembly and washing machine - Google Patents

Abstract

The utility model discloses a drainage motor installation department, drainage motor installation department is provided with one or more mounting hole be provided with at least one injection moulding process hole that is sunken form in the circumference outside region of one or more mounting hole injection moulding process hole below is formed with runner shaping district. The main shell of the drainage motor component is provided with the drainage motor installation part. Also disclosed is a washing machine including the drain motor assembly as described above.

Description

Drainage motor installation part, drainage motor assembly and washing machine

Technical Field

The present disclosure relates to a drain motor mounting part, a drain motor assembly and a washing machine including the same.

Background

The connection mode of the drainage motor component and the washing machine main body in the prior art is roughly divided into the following two types:

firstly, a drainage motor assembly is connected to a washing machine main body through a metal mounting plate which is connected with a motor shell of the drainage motor assembly through screws and serves as a bridge, the metal mounting plate and the motor shell are fastened through the screws, although the metal mounting plate and the motor shell are feasible, the cost of the whole part is too high, the fixing strength of the motor shell and the shell cover is poor, the possibility that the motor shell and the shell cover deform due to the stress of a transmission part during working is easily generated, and the transmission effect of the internal transmission part is further influenced; and the manufacturing process is inefficient;

the second kind, the drainage motor subassembly passes through the screw and directly is connected motor casing and washing machine main part, and this scheme defect lies in that current motor casing structure can't bear the moment of torsion of locking screw when installing, has the risk of fracture, smooth tooth and throw off.

Accordingly, there is a need for a new drain motor assembly that includes a mounting structure that is capable of connecting a motor housing to a washing machine in a manner that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

To this end, according to one aspect of the present invention, there is provided a drain motor mounting part provided with one or more mounting holes, at least one injection molding process hole in a recessed form being provided in a circumferential outer region of the one or more mounting holes, a gate molding region being formed below the injection molding process hole.

The drain motor mounting proposed according to the present invention may comprise one or more of the following developments.

In some embodiments, the injection molding process hole is provided in a mounting surface of the drain motor mounting part for mounting with other equipment.

In some embodiments, the thickness of the drain motor mounting part is L, and the depth H of the injection molding process hole satisfies 1/9L < H < 4/9L.

In some embodiments, the radius of the mounting hole is r, and the shortest distance D between the edge of the injection molding process hole and the edge of the mounting hole satisfies: d is more than r.

In some embodiments, the radius r of the mounting hole is 1.9mm, and the shortest distance D > 2 mm.

In some embodiments, the thickness L of the drain motor mounting part has a value of 9 mm.

In some embodiments, the injection molding process holes are in the form of round holes, square holes, triangular holes, or polygonal holes.

In some embodiments, the drain motor mounting part is provided with two mounting holes, and one injection molding process hole is provided at a circumferential outer portion of each of the two mounting holes.

In some embodiments, the drain motor mounting part is provided with two mounting holes, and one injection molding process hole is provided between the two mounting holes.

In some embodiments, the drain motor mounting part is connected to a main housing of the drain motor, and the drain motor is provided with at least one triangular reinforcing rib at a connection part connected to the main housing.

In some embodiments, at least one shrink-proof rib is provided in the drain motor mounting portion, the at least one shrink-proof rib being formed by at least one recess provided in a face of the drain motor mounting portion opposite to the mounting face.

According to another aspect of the present invention, there is provided a drainage motor assembly comprising:

a main housing;

a motor located inside the main housing;

a transmission assembly located inside the main housing and connected to the motor to transmit torque of the motor;

a traction assembly coupled to the drive assembly and extending out of the main housing to receive torque from the drive assembly;

wherein, be provided with at least one according to above drainage motor installation department on the main casing.

The drain motor assembly proposed according to the utility model may comprise one or more of the following developments.

In some embodiments, at least one of the motor mounting portions is provided as a mounting plate protruding with respect to the periphery of the main housing.

In some embodiments, the main housing includes an upper housing and a lower housing that are secured to each other.

In some embodiments, the mounting plate is integrally formed with the lower housing.

According to yet another aspect of the present invention, a washing machine is proposed, comprising a drainage motor assembly according to the above.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from the drawings without inventive effort. In the drawings:

FIG. 1 illustrates a perspective schematic view of a drainage motor assembly according to one embodiment of the present invention;

FIG. 2 illustrates an exploded perspective view of the drainage motor assembly of FIG. 1;

3-4 illustrate perspective views of a lower housing of a main housing of a drainage motor assembly according to an embodiment of the present invention, each from a different perspective;

fig. 5A-5B are schematic views showing, in fragmentary views, mounting holes in mounting portions of a prior art main casing and weld mark positions formed in the mounting plates, respectively, wherein fig. 5A is a plan view and fig. 5B is a sectional view;

fig. 6A-6B are partial schematic views illustrating a mounting hole and an injection process hole in a mounting portion of a main housing and a flow of a melt during injection molding, respectively, provided in accordance with an embodiment of the present invention, wherein fig. 6A is a plan view and fig. 6B is a sectional view;

FIG. 7 shows a perspective view of the sheath portion with the cover portion removed;

fig. 8 shows the skeleton and the sheath part of the electric machine connected together from the bottom in a plan view, in which a partial cross-sectional view of the sheath part is shown;

FIG. 9 shows the main housing and sheath portion connected together from the side in plan view, with a partial cross-sectional view of the sheath portion and its connection with other components shown;

FIG. 10 shows an enlarged view of the partial cross-sectional view of FIG. 9; and

fig. 11 shows a water-proof eave on the upper housing of the main housing in a partial view.

List of reference numerals

10 drainage motor subassembly

100 main casing

101 mounting plate

102 water leakage groove

1011 mounting surface

1012 opposite the mounting surface

110. 120 mounting part

111. 111a, 112, 121 mounting holes

113. 114 injection molding process hole

115 first surface

117. 118 triangular reinforcing rib

119 shrink-proof rib

130 upper shell

131 waterproof eaves

132 waterproof stop

133 spigot mating face

140 lower casing

150 bottom wall

151 bottom wall drain hole

160 top surface

161 water retaining rib

200 motor

210 framework

220 first inserting sheet

221 first terminal post

222 first lug

223 first connection section

230 second insert sheet

233 second connecting section

250 Upper disc

260 bottom wall

270 first retention tab

280 second retention tab

300 drive assembly

400 traction assembly

500 sheath part

510 dividing baffle

511 first baffle plate portion

512 second baffle part

513 Barrier wall

520 first tab zone

523 first terminal post accommodating part

524 first lug receiving portion

530 second tab region

533 second terminal holding part

534 second lug holding part

521. 531 Drain hole

540 interface wall

541 first water draining channel

542 second drainage channel

550 bottom plate

560 first retaining wall

561 first recess

562 a first jack

570 second retaining wall

571 first recess

572 second Jack

580 cover part

516 inserting groove

Thickness of L-shaped mounting part

Depth of H injection molding process hole

D shortest safe distance

Detailed Description

Hereinafter, a motor assembly for draining water of a washing machine according to embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. To make the objects, technical solutions and advantages of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure.

Thus, the following detailed description of the embodiments of the present disclosure, presented in conjunction with the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The singular forms include the plural unless the context otherwise dictates otherwise. Throughout the specification, the terms "comprises," "comprising," "has," "having," "includes," "including," "having," "including," and the like are used herein to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

In addition, even though terms including ordinal numbers such as "first", "second", etc., may be used to describe various elements, the elements are not limited by the terms, and the terms are used only to distinguish one element from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of the present disclosure.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the disclosed products are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing and simplifying the present disclosure, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present disclosure.

The utility model relates to a drainage motor assembly 10, and fig. 1 and 2 show an embodiment of the drainage motor assembly 10 according to the utility model in a perspective schematic view and in an exploded perspective view, respectively. As shown, in this embodiment, the drain motor assembly 10 includes at least a main housing 100, a motor 200 located within the main housing 100 and a transmission assembly 300 for transmitting torque from the motor 200, and a traction assembly 400 connected to the transmission assembly 300 and thus transmitting torque of the motor 200, for example, the traction assembly 400 transmits torque from the motor 200 to a drain valve (not shown) of a washing machine through the transmission assembly 300 to enable the washing machine to drain, and the transmission assembly 300 includes one or more of a number of gears, a transmission shaft, a transmission belt, and the like.

Mounting of a drainage motor assembly to a washing machine

The main housing 100 carries and encloses the motor 200 and the transmission assembly 300 to support and protect the motor 200 and the transmission assembly 300. In addition, the main housing 100 is also used to connect the drain motor assembly 10 to a washing machine (not shown), and for this purpose, the main housing 100 is provided with one or more drain motor mounting parts 110, 120 for connection to the main body of an external device, such as a washing machine, as shown in fig. 1 to 4. The one or more drain motor mounting parts 110, 120 may each be provided with one or more mounting holes 111, 112, 121, for example by screws tightly fitted in the mounting holes to fix the drain motor mounting part 110, 120 to the main body of the external device. In order to enhance the strength of the drain motor mounting part around the mounting hole, and thus the strength of the entire main housing 100, and the mounting stability and workability of the drain motor assembly 10 to an external device such as a washing machine and the overall performance of the external device, the present invention proposes that, in at least one drain motor mounting part 110 of the one or more drain motor mounting parts 110, 120, at least one injection molding process hole 113, 114 in the form of a depression is provided in a circumferential outer region of the one or more mounting holes 111, 112, and a gate molding region is formed below the respective injection molding process hole 113, 114, as shown in fig. 4-6B.

Specifically, in the related art, as shown in fig. 5A-5B, only the mounting hole 111a is provided in the drain motor mounting portion 110a without an injection molding process hole as proposed in the present application, and in this case, during injection molding of the parts, the melt may flow at the mounting hole 111a and then converge at the other end as shown by an arrow in fig. 5B, and finally the mounting hole 111a is formed. However, in this process, the fusion marks are generated by the convergence of the melts, and the fusion marks penetrate the entire mounting hole 111 a. The mechanical property of the plastic at the welding mark is reduced, and particularly when a self-tapping screw larger than the diameter of the mounting hole 111a is locked, the plastic is very easy to crack, so that the locking force of the drainage motor assembly is influenced.

It should be noted that in the sense of the present disclosure, the gate on the mold is the material inlet when the housing is molded, and the position of the gate on the mold corresponds to the gate molding area on the molded part, and the gate molding area is recessed relative to the surface of the part, thereby forming the injection molding process hole. Regarding the gate forming area, after the forming part is injection-molded by the mold and the forming part is ejected from the mold, a part of the material at the gate of the mold is left on the forming part and forms a gate forming part, and the gate forming area is the area where the gate forming part is located. The weld mark is a portion where materials introduced from the material inlet cross each other.

In the embodiment according to the present invention, the strength of the drain motor mounting part 110 around the mounting holes 111, 112 can be improved by providing the injection molding process holes 113, 114 and the corresponding recess gate molding regions around the mounting holes 111, 112 of the drain motor mounting part 110. This is because, as shown in fig. 6A-6B, the gate of the mold will be disposed at a recessed gate-forming region that is lower than the first surface 115 of the drain motor mounting portion 110 where the injection-molded process holes 111, 112 are disposed. Thus, during the injection molding process, the plastic melt first converges at the bottom of the drain motor mounting portion 110 opposite to the first surface 115, where it is inevitable that a weld mark is formed, as schematically shown by the arrows in fig. 6B. When the plastic melt continues to fill the drainage motor mounting portion 110 solid above the molding surface of the gate molding area (which corresponds to the bottom surface of the injection molding process hole), the plastic melt is completely converged and the gate continues to input the melt to increase the pressure, and under the action of the pressure, the converged melt is filled upwards to finally form the whole solid, and in the process, the part does not form a weld mark.

As can be seen from the above molding process, in the drain motor mounting portion 110, there are weld marks in the portions of the mounting holes 111, 112 lower than the molding surface of the gate molding region, and the weld marks can be removed in the portions higher than the molding surface of the gate molding region. Therefore, in a specific embodiment, the injection molding holes 113 and 114 are disposed in the installation surface of the corresponding drain motor installation part 110, which is installed in the washing machine, as shown in fig. 4, that is, the opening of the gate forming region of the recess is directed to the surface matched with the washing machine, so that the screw is preferentially locked into the body without the weld mark, and the screw torque bearing capacity is improved.

In order to further improve the bearing capacity of the mounting holes 111, 112, it is necessary to reduce the length of the weld mark as much as possible, and it can be seen from the above description of the injection molding process that the depth of the injection molding process holes 113, 114 has a direct influence on the length of the weld mark, and in the case that the bottom side (opposite to the above first surface) meets the requirements of strength and injection molding thickness, the deeper the injection molding process hole, the shorter the weld mark.

Since the thickness of the plastic part is fixed, the depth of the injection molding process hole directly affects the thickness of the bottom solid portion. From the above, the bottom of the injection molding process hole is the gate forming area, and the thickness of the bottom directly affects the quality of injection molding. When the thickness of the bottom is too thin, the overall fluidity of the part is slowed down due to the influence of the thin wall when plastic melt enters the cavity from the part, so that the time for filling the whole cavity is prolonged; meanwhile, as the fluidity is slowed down, the temperature difference of the plastic melting materials at all parts of the part is large, and the difference of the chemical properties after solidification is large, so that the overall performance of the part is influenced; considering from the aspect of injection molding machine, the thin wall can greatly increase the injection molding pressure at the point gate, and the integral injection molding efficiency is influenced. When the thickness of the bottom is too thick, the part is easy to shrink at the position to influence the strength of the part; from the above, it can be seen that only the solid structure of the molding portion above the gate molding area can remove the weld mark, i.e. the depth of the injection molding hole affects the ability of the injection molding process to withstand the screw torque, and the thicker the bottom solid means the shallower the depth of the hole, the more solid bodies with weld marks, resulting in the lower the bearing ability. In view of the above, in one specific embodiment, as shown in fig. 6B, if the thickness of the drain motor mounting part is L and the depth of the injection molding process hole is H, it is set to satisfy 1/9L < L-H < 4/9L L. Therefore, the relation between the thickness L of the installation part of the drainage motor and the depth H of the injection molding process hole is 5/9L < H < 8/9L, namely the wall thickness of the installation plate in the area of the gate forming area is L-H.

In a specific embodiment, as shown in fig. 6B, the thickness L of the drain motor mounting portion 110 of the main housing 100 is set to 9mm, which is advantageous in reducing the deformation amount thereof during the traction process and increasing the stability. In this case, the depth H of the injection molding process holes 113, 114 may be set between 5mm and 8 mm. More specifically, the depth H of the injection molding hole 113, 114 is 7mm, and the thickness of the bottom solid portion (i.e., gate molding region) of the injection molding hole 113, 114 is 2 mm. The cross-sectional shape of the injection molding process holes 113, 114 may be circular, square, or triangular. A sufficient minimum safety distance D needs to be provided between the mounting holes 111, 112 and the injection-molded holes 113, 114, so that it is ensured that the locking screws do not crack due to excessive weakness. Preferably, the shortest safety distance D needs to be larger than the radius of the mounting holes 111, 112. In a specific embodiment, the radius of the mounting holes 111, 112 is 1.9mm, and the shortest safety distance D between the mounting holes 111, 112 and the injection molding process holes 113, 114 is 2.1 mm. As can be seen, the distance D between the mounting hole 111 and the corresponding injection molding hole 113 is the weakest part around the entire mounting hole; because the screw and the mounting hole 111 can be in interference fit, the screw needs a single-side interference mounting hole of 0.5mm according to the design standard; in order to be able to withstand the pressure of the screw driving, the shortest safety distance D between the mounting hole 111 and the injection molding hole 113 is greater than 2 mm.

In a specific embodiment, as shown in fig. 1 to 4, the main housing 100 may be provided with a mounting plate 101 protruding with respect to the outer periphery of the main housing 100, and the main housing 100 of the drain motor assembly 10 may be mounted to the main body of an external device such as a washing machine through at least the mounting plate 101. As shown, a first drain motor mounting portion 110 may be formed at the mounting plate 101, one or more mounting holes 111, 112 may be provided in the first drain motor mounting portion 110, and at least one injection molding process hole 113, 114 may be provided at a circumferential outer portion of the one or more mounting holes 111, 112. More specifically, in the illustrated embodiment, the first drain motor mounting portion 110 is provided with two mounting holes 111, 112, and one injection-molded hole 113, 114 is provided at a circumferential outer portion of each of the two mounting holes 111, 112. In a not shown embodiment, in the case of a short distance between the two mounting holes, it is also possible to provide only one injection molding hole between the two mounting holes. It should be noted that if the plurality of mounting holes in the drain motor mounting portion are closer to each other, the above technical effect can be achieved by providing one injection molding process hole between the plurality of mounting holes, that is, the number of the injection molding process holes and the number of the mounting holes do not need to follow a one-to-one correspondence relationship.

In a more specific embodiment, as shown in fig. 2 to 4, at least one reinforcing rib, for example, triangular reinforcing ribs 117, 118, is further provided at the mounting portion where the mounting plate 101 and the rest of the main housing 100 are connected to each other to further enhance the connection strength of the mounting plate 101, to prevent it from being cracked with respect to the rest of the main housing 100 due to stress, and to prevent excessive shaking or vibration from occurring during the operation of the motor, thereby securing the operational stability and safety of the drain motor assembly 10 and even the external device such as the washing machine. More specifically, as shown, at least one triangular reinforcing rib 117, 118, for example, 3-5 triangular reinforcing ribs 117, 118 regularly arranged, are provided on both the mounting surface 1011 of the mounting plate 101 and the other surface 1012 opposite to the mounting surface 1011 at the connection where the mounting plate 101 and the rest of the main housing 100 are connected to each other.

In a more specific embodiment, as shown in fig. 1-3, in order to ensure consistent distribution and molding of the injection melt during molding of the mounting plate 101, thereby ensuring overall structural strength and avoiding excessive distortion, one or more anti-collapse ribs 119 are also provided on the mounting plate 101, specifically in the form of recesses and in particular in a face 1012 of the mounting plate 101 opposite the mounting face 1011. The one or more anti-shrink ribs 119 may be arranged regularly or irregularly as desired.

Further, in a more specific embodiment, as shown in fig. 1 to 4, the main housing 100 may include an upper housing 130 and a lower housing 140 fixed to each other, which may be fixed together by screw holes and studs. And more specifically, the mounting board 101 is integrally formed with the lower case 140.

In a more specific embodiment, as shown in fig. 4, the main housing 100 further includes a second drain motor mounting portion 120 spaced apart from the mounting plate 101 and disposed at a periphery of the main housing 100, which is also used for a fixed connection with the main body of the washing machine, which is advantageous to further secure the mounting stability of the drain motor assembly.

From this, this disclosure adopts the thickening mounting panel to be provided with the strengthening rib between the mounting panel and the rest of the main casing body, increase the fabrication hole of moulding plastics, reduce material and cost of labor on the one hand, on the other hand makes drainage motor subassembly have improved holistic bearing capacity, has reduced the deflection of complete machine, and then makes drainage motor subassembly's internal transmission system more stable, makes drainage motor's life-span can prolong, and makes corresponding washing machine's operation more stable and safe.

Waterproofing and drainage of a hydroelectric machine assembly

According to a specific embodiment, as shown in fig. 8-10, the electric machine 200 of the drainage electric machine assembly 10 proposed by the present disclosure includes a conductive coil (not shown) and a skeleton 210 for holding the conductive coil, and it is necessary to electrically connect the conductive coil of the electric machine 200 to an external power source via conductive tabs 220, 230. Drainage motor assemblies are used in wet environments such as washing machines and the like, and it is necessary to ensure that the motor in the drainage motor assembly, particularly the conductive coil and the conductive insert thereof, will not be short-circuited or otherwise damaged by contact with water or water vapor. For this purpose, an internal drainage system and an external drainage system may be provided for the drainage motor assembly. The internal drainage system is mainly used for timely draining water entering the internal part on one hand and preventing short circuit between different wiring pieces due to the formation of water paths on the other hand; the external drainage system is used for preventing external water from entering the interior of the main shell.

Internal drainage and waterproofing system for a drainage motor assembly

Thus, as shown in fig. 1-2 and 7-10, the main housing 100 of the electric drainage motor assembly 10 may further include a sheath portion 500, optionally formed separately from the main housing 100, for positioning, supporting and protecting the skeleton 210 of the motor 200 and for positioning, supporting and protecting the conductive tabs 220, 230 of the motor 200. The sheath part 500 may be fixedly coupled with the main housing 100.

In one particular embodiment, as shown in fig. 8-10, the motor 200 includes electrically conductive first and second blades 220, 230 that are connected, for example, to the neutral and live wires, respectively, and are used to establish an electrical connection between the electrically conductive coils of the motor 200 and an external power source. For example, each blade optionally includes a terminal post for electrical connection with a conductive coil of the electric machine and a terminal tab for electrical connection with an external power source; and further optionally, each tab may further comprise a connecting section connected between the terminal post and the lug. In order to avoid a short circuit fault caused by a water path formed between the first insert sheet 220 and the second insert sheet 230 in the presence of water or moisture, the sheath portion 500 is provided with a separating barrier 510, and the separating barrier 510 is used for separating the sheath portion 500 into a first insert sheet region 520 for the first insert sheet 220 and a second insert sheet region 530 for the second insert sheet 230, so that the separating barrier 510 can effectively block the water path between the first insert sheet 220 and the second insert sheet 230, and help to avoid a short circuit. Furthermore, in order to drain off water that may enter the sheath portion 500 in a timely manner, at least one drainage hole 521, 531 is provided in each of the first and second insert regions 520, 530, the drainage holes 521, 531 being provided, for example, in the bottom of the first and second insert regions 520, 530 and opening out of the sheath portion 500.

In a more specific embodiment, as described above, and as shown in fig. 9-10, the first tab 220 may be provided with a first terminal 221 for connection with the conductive coil and a first tab 222 for connection with an external power source, and the second tab 230 may also be provided with a second terminal for connection with the conductive coil and a second tab for connection with the external power source. In this case, in order to effectively prevent the occurrence of short circuits between the first and second tabs 220 and 230, the separation fence 510 may be provided to include a first fence portion 511 and a second fence portion 512 connected to each other such that the first terminal 221 of the first tab 220 and the second terminal of the second tab 230 are located at both sides of the first fence portion 511, respectively, and the first terminal 222 of the first tab 220 and the second terminal of the second tab 230 are located at both sides of the second fence portion 512, respectively. That is, the first baffle portion 511 is closer to the backbone 210 of the motor 200 and thus closer to the motor interior, which may be referred to as proximal; the second baffle portion 512 is farther from the bobbin 210 of the motor 200, and may be referred to as an outer side.

Alternatively, as shown in fig. 8-10, the skeleton 210 may include an annular disk portion, and the dividing baffle 510 may extend radially outward relative to the annular disk portion of the skeleton 210.

In one particular embodiment, as shown in fig. 7-10, the first baffle portion 511 may be configured to include proximal and distal ends opposite one another, with the first baffle portion 511 being connected to the second baffle portion 512 at its distal end. Furthermore, in order to avoid that water that may enter the sheath portion 500 flows into the backbone 210 and thus further towards the center of the motor 200, the sheath portion 500 may be further arranged to comprise a blocking wall 513 extending transversely to the first baffle portion 511 at the proximal end of the first baffle portion 511, and the blocking wall 513 is arranged to form a T-shaped rib together with the first baffle portion 511. More specifically, the blocking wall 513 extends across the first and second insert regions 520 and 530 to provide an effective blocking function. Thus, water does not flow from the tab regions 520, 530 into the center of the frame 210 and the motor 200, but is discharged to the outside only through the water discharge holes 521, 531 in the tab regions 520, 530.

In a particular embodiment, as shown in fig. 7-10, the sheath portion 500 is further provided with an interface wall 540 disposed transverse to the dividing baffle 510, the interface wall 540 extending, for example, perpendicular to the dividing baffle 510 and intersecting the dividing baffle 510. Thus, the boundary wall 540 divides the first tab zone 520 into a first terminal receiving part 523 for receiving the first terminal 221 of the first tab 220 and a first tab receiving part 524 for receiving the first tab 222 of the first tab 220, and divides the second tab zone 530 into a second terminal receiving part 533 for receiving the second terminal of the second tab 230 and a second tab receiving part 534 for receiving the second tab 230. Thus, the terminal post of each blade may be separated from the terminal lug by the boundary wall 540, preventing a communication waterway from being formed between the corresponding terminal post and the terminal lug, and thus ensuring equipment and personal safety. Further, as shown in fig. 7, more specifically, the partition barrier 510 and the boundary wall 540 may constitute peripheral walls of the first and second tab receiving parts 524 and 534, and the first and second tab receiving parts 524 and 534 further include two additional peripheral walls to form cavities, respectively, in which the first and second tabs 220 and 230 are placed to protect. Further, more specifically, a bottom of each of the first and second tab receiving parts 524 and 534 is open, as particularly shown in fig. 9 to 10, so that the first and second tabs 220 and 230 can be connected with an external component.

In this case, in a more specific embodiment, as shown in fig. 7 to 10, the sheath part 500 may include a bottom plate 550 disposed at the first terminal accommodating part 523 and the second terminal accommodating part 533, and at least one water drain hole 521, 531 may be provided in both the bottom plate of the first terminal accommodating part 523 and the bottom plate at the second terminal accommodating part 533 to drain away water that may be accumulated in the first and second chip regions 520, 530.

As shown in fig. 9 to 10, in a more specific embodiment, the first tab 220 may further include a first connection section 223 disposed between the first terminal 221 and the first tab 222, and correspondingly, the second tab 230 may further include a second connection section 233 disposed between the second terminal and the second tab, and the first terminal 221 and the first tab 222 may be both bent in a first direction with respect to the first connection section 223 (i.e., bent in a downward direction in the drawing), and the second terminal and the second tab may be both bent in a first direction with respect to the second connection section 233 (i.e., bent in a downward direction in the drawing). Alternatively, the first post 221 and the first tab 222 may be vertically bent with respect to the first connection section 223, and the second post and the second tab may be vertically bent with respect to the second connection section.

In this case, as shown in fig. 7 to 10, more specifically, the sheath portion 500 may be further provided with a first retaining wall 560 and a second retaining wall 570 at the first and second tab receiving portions 524 and 534, respectively, the first and second retaining walls 560 and 570 each being connected to the partition baffle 510 and the boundary wall 540. Alternatively, as shown in fig. 7 to 10, the first and second retaining walls 560 and 570 may constitute top walls of the cavities for receiving the first and second tabs 222 and 232, respectively, described above. The first holding wall 560 is provided therein with a first recess 561 for holding a first distal portion of the first connection section 223 of the first blade 220 connected to the first tab 222 and a first insertion hole 562 penetrating the first holding wall 560, the first insertion hole 562 being for the first tab 222 to pass through into the cavity accommodating it, and as shown, the first recess 561 may communicate with the first insertion hole 562. Accordingly, the second retaining wall 570 is provided with a second recess 571 and a second receptacle 572 through the second retaining wall 570, the second recess 571 being for retaining a second distal portion of the second connection section 233 of the second blade 230 connected to a second wire connector lug, the second receptacle 572 being for the second wire connector lug to pass through into the cavity in which it is received.

Further, as shown in fig. 7 to 10, more specifically, a first drain channel 541 communicating with the first recess 561 and a second drain channel 542 communicating with the second recess 571 are provided in the boundary wall 540, and the first drain channel 541 and the second drain channel 542 are open to the outside of the sheath portion 500 and thus the outside of the main housing 100 to enable timely drainage of water near the first insert sheet 220 and the second insert sheet 230. More specifically, as shown in the drawing, both the first drain channel 541 and the second drain channel 542 are provided on the proximal surface of the boundary wall 540.

Therefore, in the drainage motor assembly 10 according to the present invention, the contact surfaces of the first and second blades 220 and 230 with the sheathing part 500 are very small, which may effectively prevent water stains from flowing into the surface of the frame 210 along the contact surfaces therebetween.

In one particular embodiment, as shown in fig. 9-10, the backbone 210 of the motor 200 can include an upper plate 250 and a lower plate 260. Upper plate 250 may be used to hold first tab 220 and second tab 230. To this end, the upper plate 250 may include a first retention tab 270 and a second retention tab 280, the first retention tab 270 for retaining the first terminal post 221 of the first prong 220 and a first proximal portion of the first connection section 223 connected to the first terminal post 221, the second retention tab 280 for retaining the second terminal post of the second prong 230 and a second proximal portion of the second connection section 233 connected to the second terminal post. For example, the first and second retention tabs 270 and 280 are each provided with a recess for retaining the respective proximal portion and a receptacle for passing the respective post therethrough. In this case, in a more specific embodiment, as shown in fig. 8, the proximal end of the second flap portion 512 of the dividing flap 510 may be interposed between the first and second retention tabs 270 and 280, i.e., the second flap portion 512 extends proximally into the space between the first and second retention tabs 270 and 280, which may more effectively space the first and second tabs 220 and 230 apart, further helping to avoid short circuits.

Further, as shown in fig. 8 to 10, the blocking wall 513 of the sheath portion 500 may abut against a portion of the outer periphery of the lower plate 260 of the skeleton 210 and be complementary in shape to the portion of the outer periphery of the lower plate 260, for example, each having a circular arc shape. This ensures that water stains are prevented from further flowing toward the center of the bobbin 210 and the motor 200. Further, the sheath portion 500 may also be provided with a peripheral wall, such as a peripheral wall connected between the barrier wall 513 and the boundary wall 540, at the respective terminal accommodating portions 523, 533.

More specifically, as shown in fig. 7 to 10, the main housing 100 includes a bottom wall 150, and at least one drain hole 151 is provided in the bottom wall 150. In this case, water flowing into the main housing 100 through the water drainage holes 521, 531 in the first terminal accommodating part 523 and/or the second terminal accommodating part 523 of the sheath part 500 or otherwise entering the main housing 100 may be drained out of the main housing 100 through the at least one water drainage hole 151 (shown in fig. 3 to 4) in the bottom wall 150 of the main housing 100.

In addition, as shown in fig. 9-10, in a more specific embodiment, the sheath part 500 may be further provided with a cover part 580, for example, a socket groove 516 may be provided on the top of the second shutter part 512 of the partition shutter 510, and a socket plate extending from a surface of the cover part may be provided in the cover part 580, which may be plugged in the socket groove 516 to position and mount the cover part 580.

Further, it should be noted that the sheath part 500 may be formed separately from the rest of the main housing 100.

External water-proofing system for a hydroelectric generator assembly

In the case where the sheath part is formed separately from the main case, a water leakage groove 102 may be provided at a connection portion between the sheath part 500 and the main case 100, as shown in fig. 1, so that a water current existing above the cover part 580 of the sheath part 500 may be safely discharged without penetrating into the inside of the sheath part 500.

Further, as shown in fig. 1-2, a water blocking rib 161 protruding and extending upward with respect to the top surface 160 may be provided on the top surface 160 of the main housing 100 on the side where the sheath part 500 is installed. And, for example, in the case where the main housing 100 includes the upper housing 130 and the lower housing 120, the water blocking rib 161 is more specifically provided on the top surface of the upper housing 100. The water blocking rib 161 is provided to block water from flowing to the sheath portion 500, thereby securing safety of the circuit portion.

In the case where the main housing 100 includes the upper housing 130 and the lower housing 140, as shown in fig. 1-2, 9 and 11, a waterproof eaves 131 extending downward from a circumferential side wall of the upper housing 130 may be further provided on the upper housing 130, so that water may be prevented from directly contacting the spigot mating surface 133 between the upper housing 130 and the lower housing 140 and entering the interior of the motor 200. The waterproof eaves 131 may be triangular in cross-section as shown in fig. 11, and may provide a drainage slope, an included angle of 0 to 90 ° is formed between the drainage slope and the spigot mating surface, and the drainage slope has a shape including, but not limited to, a plane shape or an arc surface shape. In addition, the waterproof eaves 131 may be disposed near the mating surface of the spigot, so that water drops or water flow dropping or gathering on the upper portion of the main housing may be guided outward by the slope in the down-flow process, avoiding contact with and water inflow through the mating surface of the spigot.

Further, more specifically, as shown in fig. 11, the waterproof eaves 131 may also be provided with a waterproof stopper 132 extending downward from the bottom, the waterproof stopper 132 being more specifically provided to extend beyond the spigot mating face. The setting of waterproof dog 132 can increase under the influence of the adhesive force on fluid and main housing surface, the degree of difficulty of fluid to tang fitting surface diffusion on the one hand, and on the other hand, the lower surface of waterproof dog is less than the tang fitting surface, and in moist operational environment, this structure can effectively reduce the direct contact of gaseous state water or the water droplet of sputtering and tang fitting surface, plays fine guard action.

In conclusion, according to the drainage motor assembly provided by the utility model, the special internal drainage system is designed in the drainage motor assembly while the waterproof structure is externally reinforced, so that the service life of the motor in a humid environment can be greatly prolonged.

Although the exemplary embodiment of the drain motor assembly for a washing machine according to the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above, and various combinations of the various features and structures proposed by the present invention may be made without departing from the concept of the present invention.

The scope of the present disclosure is not defined by the above-described embodiments but is defined by the appended claims and equivalents thereof.

Claims (16)

1. The utility model provides a drainage motor installation department, its characterized in that, drainage motor installation department is provided with one or more mounting hole be provided with in the circumference outside region of one or more mounting hole at least one injection moulding process hole that is sunken form the runner shaping district is formed below the injection moulding process hole.

2. The drain motor mounting portion of claim 1, wherein the injection molding tooling holes are provided in a mounting surface of the drain motor mounting portion for mounting with other equipment.

3. The drain motor mounting part of claim 2, wherein the drain motor mounting part has a thickness L, and the depth H of the injection molding hole satisfies 1/9L < H < 4/9L.

4. The drain motor mounting part according to claim 3, wherein the radius of the mounting hole is r, and the shortest distance D between the edge of the injection molding process hole and the edge of the mounting hole satisfies: d is more than r.

5. The drain motor mounting portion of claim 4, wherein the radius r of the mounting hole is 1.9mm, and the shortest distance D > 2 mm.

6. A drain motor mounting according to any of claims 3 to 5, wherein the thickness L of the drain motor mounting has a value of 9 mm.

7. The drain motor mounting part according to any one of claims 1 to 5, wherein the injection-molded hole is in the form of a circular hole, a square hole, a triangular hole, or a polygonal hole.

8. The drain motor mounting part according to any one of claims 1 to 5, wherein the drain motor mounting part is provided with two mounting holes, and one injection molding process hole is provided at a circumferential outer portion of each of the two mounting holes.

9. The drain motor mounting part according to any one of claims 1 to 5, wherein the drain motor mounting part is provided with two mounting holes, and one injection molding process hole is provided between the two mounting holes.

10. The drain motor mounting portion according to any one of claims 1 to 5, wherein the drain motor mounting portion is connected to a main housing of a drain motor, and the drain motor is provided with at least one triangular reinforcing rib at a connection portion with the main housing.

11. The drain motor mounting portion according to any one of claims 2 to 5, wherein at least one shrink prevention rib is provided therein, the at least one shrink prevention rib being formed by at least one recess provided in a face of the drain motor mounting portion opposite to the mounting face.

12. A hydroelectric drainage assembly, comprising:

a main housing;

a motor located inside the main housing;

a transmission assembly located inside the main housing and connected to the motor to transmit torque of the motor;

a traction assembly coupled to the drive assembly and extending out of the main housing to receive torque from the drive assembly;

wherein the main housing is provided with at least one drain motor mounting portion according to any one of claims 1 to 11.

13. The drain motor assembly of claim 12, wherein at least one of the motor mounting portions is provided as a mounting plate that protrudes relative to a periphery of the main housing.

14. The electric drain motor assembly of claim 13, wherein the main housing comprises an upper housing and a lower housing secured to one another.

15. The drainage motor assembly of claim 14, wherein the mounting plate is integrally formed with the lower housing.

16. A washing machine characterised in that it includes a drain motor assembly according to any one of claims 12 to 15.

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