CN110331557B - Outer cylinder bottom of washing machine - Google Patents
Outer cylinder bottom of washing machine Download PDFInfo
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- CN110331557B CN110331557B CN201910516502.2A CN201910516502A CN110331557B CN 110331557 B CN110331557 B CN 110331557B CN 201910516502 A CN201910516502 A CN 201910516502A CN 110331557 B CN110331557 B CN 110331557B
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- washing machine
- sub
- motor stator
- support body
- mounting
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
- D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
Abstract
The invention discloses an outer cylinder bottom of a washing machine, which comprises an outer cylinder bottom body and a shaft sleeve embedded in the outer cylinder bottom body; wherein the shaft sleeve comprises a bearing installation chamber which can be assembled with a bearing, and at least one supporting body; the support body is arranged on the outer wall of the bearing installation chamber; the supporting body is arranged on the outer wall of the bearing installation chamber, the supporting body can disperse the stress of the inner cylinder shaft at the bottom of the outer cylinder, the deformation of the bottom of the outer cylinder is reduced, and therefore the strength of the bottom of the outer cylinder is improved.
Description
Technical Field
The invention belongs to the field of washing machines, and particularly relates to an outer cylinder bottom of a washing machine.
Background
The drum washing machine which is generally produced and used at present comprises an inner drum for washing and an outer drum for storing water, wherein the outer drum is generally made of plastic materials; the inner cylinder is generally made of stainless steel, the inner cylinder body is provided with water permeable holes and is used for containing clothes to be washed, an inner cylinder shaft is fixed at the center of the rear part of the inner cylinder, the other end of the inner cylinder shaft penetrates through the bottom of the outer cylinder to be connected with a rotor of a motor, the inner cylinder shaft is used for transmitting rotating power, the rotor of the motor drives the inner cylinder to rotate through the inner cylinder shaft, when the roller washing machine operates, the outer cylinder is fixed, and the inner cylinder rotates under the driving of the motor. In order to ensure that the inner cylinder can normally rotate, the part of the shaft of the inner cylinder, which is positioned at the bottom of the outer cylinder of the washing machine, needs to be supported by a bearing, and the bearing is pressed on a shaft sleeve at the bottom of the outer cylinder of the washing machine by a tool;
to the axle sleeve on the outer bobbin base of washing machine, the axle sleeve at the bottom of current outer bobbin is mostly the cylindrical design that has the bearing installation room, the bearing assembly is in the bearing installation room, the inner tube axle runs through the bearing installation room and is connected with the rotor of motor, current axle sleeve adopts cast iron or aluminum alloy material more, the axle sleeve imbeds at the bottom of the outer bobbin, and through injection moulding technology and outer bobbin base integrated into one piece, in injection moulding technology, the polymer thermoplastic material who moulds plastics the adoption fixes the axle sleeve parcel on the outer bobbin base, because the axle sleeve is mostly cylindrical design, make the inner tube axle stress that receives at the bottom of the outer bobbin concentrate relatively, thereby make the yielding damage at the bottom of the outer bobbin, lead to the outer bobbin base intensity relatively poor.
Disclosure of Invention
The invention provides an outer cylinder bottom of a washing machine, aiming at overcoming the defects of concentrated stress on the outer cylinder bottom and poor strength of the outer cylinder bottom of the washing machine in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
in one aspect of the invention, the outer cylinder bottom of the washing machine comprises an outer cylinder bottom body and a shaft sleeve embedded in the outer cylinder bottom body; the shaft sleeve comprises a bearing installation chamber capable of being assembled with a bearing, and a support body radially extends outwards from the outer wall of the bearing installation chamber.
Further, the shaft sleeve comprises a plurality of supporting bodies; the support bodies are arranged on the outer wall of the bearing installation chamber at intervals along the circumferential direction of the bearing installation chamber and extend along the radial direction of the bearing installation chamber;
preferably, the bearing installation chamber is coaxially arranged with the outer cylinder bottom body.
Further, the shaft sleeve further comprises an annular shell; the support body extends along the radial direction of the bearing installation chamber to be connected with the inner wall of the annular shell;
preferably, the annular housing extends along the outer circumference of the bottom of the outer cylinder for one circle.
Furthermore, the supporting body is provided with an installation part matched with the installation hole of the motor stator.
Further, the installation department includes the installation department body, set up the mounting hole with motor stator mounting hole adaptation on the installation department body, the axial lead of mounting hole with the axial lead of bearing installation room is parallel.
Furthermore, the support body is divided into a first sub-support body connected with the outer wall of the bearing installation chamber, an installation part body and a second sub-support body connected with the auxiliary support body along the radial direction of the bearing installation chamber; the first sub-supporting body and one side of the mounting part body facing the motor stator are arranged in a protruding mode relative to the second sub-supporting body;
preferably, the first sub-supporting body and the mounting portion body have the same protruding size on the side facing the motor stator.
Further, in the axial direction of the bearing installation chamber,
the thickness dimension of the mounting part body is larger than the thickness dimensions of the first sub-supporting body and the second sub-supporting body.
Furthermore, the supporting body is also provided with a positioning part, and the positioning part is provided with a positioning hole for positioning the motor stator during installation;
preferably, the positioning hole and the mounting hole are located on the same support body, and the axis of the positioning hole is parallel to the axis of the mounting hole.
Furthermore, a grounding wire seat is arranged on the support body, and a grounding wire hole is formed in the grounding wire seat;
preferably, the ground wire hole and the mounting hole are respectively located on one support body.
Furthermore, a water retaining reinforcing rib wrapped outside the motor extends outwards from the outer cylinder bottom body.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The outer cylinder bottom of the washing machine provided by the invention comprises an outer cylinder bottom body and a shaft sleeve embedded in the outer cylinder bottom body, wherein the shaft sleeve comprises a bearing installation chamber capable of being assembled with a bearing, a support body radially extends outwards from the outer wall of the bearing installation chamber, and the support body improves the strength of the outer cylinder bottom of the washing machine.
2. The outer cylinder bottom of the washing machine provided by the invention comprises the mounting part, and the mounting part is provided with the mounting hole matched with the mounting hole of the motor stator, so that the motor is firmly fixed and is not easy to loosen, a reinforcing plate can be omitted, and the manufacturing cost is reduced.
3. The support body of the outer cylinder bottom of the washing machine provided by the invention is divided into three parts, namely the first sub-support body, the mounting part body and the second sub-support body, and the first sub-support body and the mounting part body protrude towards the motor stator relative to the second sub-support body, so that the firmness between the motor stator and the outer cylinder bottom is improved.
4. The support body of the outer drum bottom of the washing machine provided by the invention is divided into a first sub-support body, an installation part body and a second sub-support body, the thickness dimension of the installation part body is larger than that of the first sub-support body and the second sub-support body, stress concentration can be avoided, and the installation part is prevented from being deformed and damaged.
5. The support body of the outer drum bottom of the washing machine provided by the invention is provided with the positioning part which is provided with the positioning hole, so that the alignment speed of the motor stator mounting hole and the mounting hole can be accelerated, and the electronic fixing efficiency of the motor can be accelerated.
6. The support body at the outer cylinder bottom of the washing machine provided by the invention is provided with a grounding wire hole for installing a grounding wire.
7. The outer cylinder bottom of the washing machine provided by the invention comprises an outer cylinder bottom body, wherein the outer cylinder bottom body extends outwards to form a water retaining reinforcing rib wrapped outside the motor, so that water inflow leakage can be prevented, condensed water is prevented from flowing into the motor to cause short circuit, and the outer cylinder bottom body is used as a reinforcing part and a stopping part of the outer cylinder bottom under the condition of extreme vibration, and has the functions of protecting and stabilizing the motor.
8. The outer cylinder bottom of the washing machine provided by the invention comprises an outer cylinder bottom body and a shaft sleeve which is integrally formed with the outer cylinder bottom body through an injection molding process, wherein the shaft sleeve comprises a supporting body, and the supporting body enables the rubber coating area between the shaft sleeve and the outer cylinder bottom body to be large, the rubber coating strength to be good and the bonding strength to be high, so that the shaft sleeve is not easy to loosen, and the water seepage of gaps is avoided.
9. The outer cylinder bottom of the washing machine provided by the invention is simultaneously provided with two motor fixing modes, and besides the transmission of the direct drive motor, the outer cylinder bottom of the washing machine is provided with the fixing holes for fixing the brushless direct current motor, so that the universality of the outer cylinder bottom of the washing machine is improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention to the proper form disclosed herein. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural view of an outer tub bottom of a washing machine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a shaft sleeve in a bottom of an outer drum of a washing machine according to an embodiment of the invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is an assembly view of a bottom of an outer tub and a motor of a washing machine according to an embodiment of the present invention.
In the figure: 1-an annular housing; 2-a bearing installation chamber; 3-a first support; 31-a first sub-support; 32-a second sub-support; 4-a second support; 41-a third sub-support; 5-a third support; 6-an installation part; 61-a mounting portion body; 62-mounting holes; 7-a positioning section; 71-positioning holes; 8-a ground wire base; 81-ground wire hole; 9-annular reinforcing ribs; 10-outer cylinder bottom body; 11-water retaining reinforcing ribs; 12-motor.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides an outer drum bottom of a washing machine, which includes an outer drum bottom body 10 and a shaft sleeve embedded inside the outer drum bottom body 10; the sleeve comprises a bearing housing 2 into which the bearing can be fitted, and a support body extending radially outwardly from the outer wall of the bearing housing.
In prior art, the axle sleeve at the bottom of current outer barrel is mostly the cylindrical design that has the bearing installation room, the bearing assembly is in the bearing installation room, the inner tube axle runs through the rotor connection of bearing installation room and motor, present axle sleeve adopts cast iron or aluminum alloy material more, the axle sleeve imbeds at the bottom of the outer barrel, and through injection moulding process and urceolus end integrated into one piece, in injection moulding process, the polymer thermoplastic material who moulds plastics the adoption fixes the axle sleeve parcel on the urceolus bottom, because the axle sleeve is mostly cylindrical design, make the inner tube axle stress that receives at the bottom of the urceolus relatively concentrate, thereby make yielding damage at the bottom of the urceolus, lead to the urceolus end intensity relatively poor.
In the embodiment of the invention, when the washing machine works, the rotation of the inner cylinder shaft generates axial stress on the bearing installation chamber and the bottom of the outer cylinder, the shaft sleeve of the bottom of the outer cylinder of the washing machine comprises the bearing installation chamber 2 and at least one support body, the support body is arranged on the outer wall of the bearing installation chamber 2, and the support body can disperse the stress of the inner cylinder shaft to the bottom of the outer cylinder, reduce the deformation of the bottom of the outer cylinder and further improve the strength of the bottom of the outer cylinder.
The means for connecting the support body to the outer wall of the bearing installation chamber 2 includes: the smooth transition of the supporting body and the outer wall of the bearing installation chamber 2 avoids stress concentration and reduces the frequency of damage of the shaft sleeve of the washing machine.
The washing machine shaft sleeve is used as a center, the outer cylinder bottom body 10 is an arc-shaped plate which emits outwards, and the arc-shaped plate back to the inner part of the outer cylinder protrudes to increase the volume of the outer cylinder.
In an embodiment of the invention, the shaft sleeve comprises a plurality of supporting bodies;
the support bodies are arranged on the outer wall of the bearing installation chamber 2 at intervals along the circumferential direction of the bearing installation chamber 2 and extend along the radial direction of the bearing installation chamber 2;
preferably, the bearing installation chamber 2 is coaxially provided with the outer cylindrical bottom body 10.
In the embodiment of the invention, when the washing machine works, the rotation of the inner cylinder shaft generates axial stress on the bearing installation chamber 2 and the bottom of the outer cylinder, and because the plurality of supporting bodies are arranged on the outer wall of the bearing installation chamber 2 along the circumferential direction of the bearing installation chamber 2, the supporting bodies can disperse the axial stress at all positions of the bottom of the outer cylinder, so that the bottom of the outer cylinder is uniformly stressed, the bottom of the outer cylinder is not easy to deform and damage, and the strength of the bottom of the outer cylinder can be improved;
in addition, because the axle sleeve is inlayed and is gone into washing machine outer barrel head setting, bearing installation room 2 and supporter and outer barrel head all contact connection for being connected at the bottom of this axle sleeve and the outer barrel except the circumferential direction of bearing installation room 2 is connected, and the slant of supporter and outer barrel head is connected in addition, has increased and has connected the dimension between axle sleeve and the outer barrel head, makes the axle sleeve fixed good, thereby is difficult for not hard up on outer barrel head, and stability is good.
Preferably, a plurality of supporting bodies are uniformly arranged, so that the uniformity of axial stress dispersion is increased, and the strength of the outer cylinder bottom is further improved.
In an embodiment of the invention, the shaft sleeve further comprises an annular housing;
the support body extends along the radial direction of the bearing installation chamber 2 to be connected with the inner wall of the annular shell 1;
preferably, the annular housing extends along the outer circumference of the bottom of the outer cylinder for one circle.
In the embodiment of the invention, two ends of the supporting body are respectively connected with the bearing installation chamber 2 and the annular shell 1, and the annular shell 1 increases the supporting area relative to a plurality of supporting bodies, so that the uniformity of axial stress dispersion can be further increased, and the strength of the outer cylinder bottom is further improved.
In the embodiment of the present invention, as shown in fig. 1, the outer wall of the auxiliary supporting body 1 is provided with a ring-shaped reinforcing rib.
The annular reinforcing rib 9 is arranged on the outer wall of the rim type shell 1, and the strength of the rim type shell 1 can be increased, so that the strength of the shaft sleeve is increased, and the capacity of resisting external force is enhanced.
As shown in fig. 1, in the embodiment of the present invention, the supporting body is provided with a mounting portion adapted to the motor stator mounting hole 62.
In the prior art, the manner of fixing the motor includes the following manners: the first method is as follows: the motor stator is fixedly connected to the bottom of the outer barrel through fastening components such as screws, the outer barrel is made of plastic materials, the screws and the like fixed on the outer barrel are generally metal parts, the fastening effect between the two materials is limited, and after the motor stator is used for a long time, the rear plate material of the outer barrel is easy to embrittle, so that the motor is easy to be fixed and even loosened, and mechanical faults are caused when the inner barrel rotates; the second method comprises the following steps: the motor fixing structure is characterized in that a reinforcing plate for fixing the motor is additionally arranged on the bottom of the outer barrel, wherein the reinforcing plate is fixedly connected to the bottom of the outer barrel by fastening components such as screws, and the screws are easy to loosen after being used for a long time, so that the effect of the reinforcing plate is ineffective;
in the embodiment of the invention, in the first mode, the motor stator is fixedly connected to the support body by matching the motor stator mounting hole 62 with the mounting part 6, and the support body is made of cast iron or aluminum alloy, so that the fastening effect between metal parts such as screws and the support body is stronger, and the motor 12 is fixed more firmly and is not easy to loosen; in the second mode, the motor stator is directly fixed to the support body, so that a reinforcing plate can be omitted, and the manufacturing cost can be reduced.
As shown in fig. 1 and 2, in the embodiment of the present invention, the mounting portion 6 includes a mounting portion body 61, and a mounting hole 62 adapted to a motor stator mounting hole is formed in the mounting portion body 61, wherein an axial line of the mounting hole 62 is parallel to an axial line of the bearing mounting chamber 2.
In the embodiment of the present invention, the motor stator is fixedly connected to the support body by matching the motor stator mounting hole 62 with the mounting hole 62 on the mounting portion body 61, wherein the matching manner of the motor stator mounting hole 62 and the mounting hole 62 on the mounting portion body 61 includes:
the first method is as follows: the mounting part body 61 is provided with a screw hole, and during mounting, a fastener is a screw which penetrates through the motor stator mounting hole 62 and is in threaded connection with the screw hole on the mounting part, wherein the screw hole is a blind hole or a through hole, preferably, the screw hole is a blind hole, so that the damage of the screw to the outer cylinder bottom is reduced;
the second method comprises the following steps: the mounting part body 61 is provided with a non-screw hole, when mounting, a fastener adopts a bolt and a nut, the bolt passes through the motor stator mounting hole 62 and tightly penetrates through the non-screw hole, and the motor stator is fixed on the outer cylinder bottom through the bolt and the nut in a threaded manner; the non-screw holes are blind holes or through holes, preferably, the non-screw holes are blind holes, and damage of the screws to the outer cylinder bottom is reduced.
It should be noted that, because the number of the mounting holes 62 on the motor stators with different specifications is different, the mounting holes 62 may be provided on the plurality of supporting bodies to adapt to the motor stators with different specifications, so as to increase the applicable range of the shaft sleeve, for example, the number of the mounting holes 62 of the motor stator is eight or four, and when the number of the mounting holes 62 of the motor stator is four, the mounting holes 62 may be provided on the eight supporting bodies, and the four mounting holes 62 may be adapted to the four mounting holes 62 of the motor stator;
when the number of the mounting holes of the motor stator is four, preferably, the mounting holes on the four supporting bodies are on the same plane, so that the problem that the motor is not firm to mount due to inclination when being mounted is avoided.
In addition, the axis of the mounting hole 62 is parallel to the axis of the bearing mounting chamber 2, so that the mounting hole 62 can be aligned with the mounting hole 62 of the motor stator, the screw can be fixed along a straight line without deviation, and the firmness of the motor stator on the outer cylinder bottom is improved.
In the embodiment of the invention, the mounting part body 61 is provided with a bulge similar to a bolt, the fastening piece adopts a nut, and when the mounting is carried out, the bulge passes through the mounting hole 62 of the motor stator and is in threaded connection with the nut so as to fix the motor stator on the outer cylinder bottom.
As shown in fig. 2, in the embodiment of the present invention, the support body is divided into three parts, along the radial direction of the bearing installation chamber 2, a first sub-support body 31 connected to the outer wall of the bearing installation chamber 2, an installation part body 61, and a second sub-support body 32 connected to the auxiliary support body; the first sub-supporting body 31 and the side of the mounting part body 61 facing the motor stator are arranged in a protruding way relative to the second sub-supporting body 32;
preferably, the first sub-supporting body 31 and the mounting portion body 61 protrude to the same size on the side facing the motor stator.
In the embodiment of the present invention, the support body is divided into three parts along the radial direction of the bearing installation chamber 2, the three parts are the first sub-support body 31, the installation body 61 and the second sub-support body 32, the first sub-support body 31 is smoothly transited to the bearing installation chamber 2, the second sub-support body 32 is smoothly transited to the auxiliary support body, among the above three parts, the first sub-supporting body 31 and the mounting part body 61 are protruded toward the motor stator with respect to the second sub-supporting body 32, the second sub-supporting body 32 is recessed with respect to the mounting part body 61, and for the motor stator, a protrusion is provided in the vicinity of the motor stator mounting hole 62, the protrusion is adapted to the second sub-supporting body 32, and a locking groove is provided on the protrusion, when the motor stator is installed, the clamping groove can be clamped on the second sub-supporting body 32, and firmness between the motor stator and the outer barrel rear plate can be further improved.
As shown in fig. 2, in the embodiment of the present invention, the thickness dimension of the mounting portion body 61 is larger than the thickness dimensions of the first and second sub-support bodies 31 and 32 in the axial direction of the bearing mounting chamber.
In the embodiment of the present invention, the mounting portion body 61 protrudes outward relative to the first sub-support 31 and the second sub-support 32 in the radial direction perpendicular to the bearing mounting chamber 2, and since the mounting portion body 61 is used for fixedly connecting the motor stator, the mounting portion 6 is prevented from being deformed and damaged in order to avoid stress concentration, and thus the thickness dimension of the mounting portion 6 in the radial direction perpendicular to the bearing mounting chamber 2 is designed to be relatively large.
Wherein the mounting portion body 61 may be a cylinder, then, in order to avoid the mounting portion 6 from being deformed and damaged, the diameter of the mounting portion body 61 in the direction perpendicular to the radial direction of the bearing mounting chamber 2 is larger than the thickness dimension of the first sub-supporting body 31 and the thickness dimension of the second sub-supporting body 32.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, a positioning portion 7 is further disposed on the supporting body, and the positioning portion 7 is provided with a positioning hole 71 for positioning the motor stator;
preferably, the positioning hole 71 and the mounting hole 62 are located on a single support, and the axis of the positioning hole 71 is parallel to the axis of the mounting hole 62.
In the embodiment of the invention, the shaft sleeve of the washing machine comprises four first supporting bodies 3, and the four first supporting bodies 3 are uniformly arranged, so that the pressure can be uniformly dispersed, and the damage degree to the outer cylinder is reduced; the first supporting body 3 is provided with a positioning hole 71 in addition to the mounting hole 62, and the positioning hole 71 is used for positioning the motor stator when the motor stator is mounted, so that the alignment speed of the motor stator mounting hole 62 and the mounting hole 62 is increased, and the fixing efficiency of the motor stator is increased.
When the motor stator is mounted, the auxiliary tool, which is a support member having positioning claws inserted into the positioning holes 71, is held by hand and supports the motor 12 such that the motor stator mounting holes 62 are aligned with the mounting holes 62.
For example, when the support body is divided into the first sub-support body 31, the mounting portion body 61, and the second sub-support body 32, the positioning portion 7 is disposed on the first sub-support body 31, and the positioning portion 7 penetrates through the first sub-support body 31, and the thickness of the positioning portion 7 is greater than that of the first sub-support body 31 along a radial direction perpendicular to the bearing mounting chamber 2, so as to avoid stress concentration of the positioning portion 7 during mounting and avoid deformation and damage of the positioning portion 7.
It should be noted that, when the washing machine shaft sleeve and the outer cylinder bottom body are integrally formed in an injection molding manner to form the outer cylinder bottom, a through hole of the bearing installation chamber needs to be reserved on an injection molding layer arranged between the washing machine shaft sleeve and the outer cylinder bottom body, a through hole for the inner cylinder shaft to pass through is formed on the outer cylinder bottom, an installation hole on the support body needs to be reserved on the injection molding layer arranged between the washing machine shaft sleeve and the outer cylinder bottom body, an installation hole matched with the motor stator installation hole is formed on the outer cylinder bottom, and a positioning hole on the support body needs to be reserved on the injection molding layer arranged between the washing machine shaft sleeve and the outer cylinder bottom body, so that a positioning hole matched with the motor installation is formed on the outer cylinder bottom.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the supporting body is further provided with a ground wire seat 8, and the ground wire seat 8 is provided with a ground wire hole 81;
preferably, the ground wire hole 81 and the mounting hole 62 are located on one support body.
In an embodiment of the present invention, the washing machine shaft sleeve further includes two second supporting bodies 4 and two third supporting bodies 5, preferably, four first supporting bodies 3, two second supporting bodies 4 and two third supporting bodies 5 are uniformly arranged, the two second supporting bodies 4 are located between two adjacent first supporting bodies 3, and the two second supporting bodies 4 are symmetrically arranged, and the two third supporting bodies 5 are located between two adjacent first supporting bodies 3, and the two third supporting bodies 5 are symmetrically arranged; in the two second support bodies 4, the second support body 4 is provided with the ground wire holder 8, the ground wire hole 81 in the ground wire holder 8 is used for mounting a ground wire, and the ground wire hole 81 is provided in the second spoke type support body, thereby reducing the load pressure of the support body 3.
As shown in fig. 2, in the embodiment of the present invention, the ground wire holder 8 penetrates the support body to plan the support body into the ground wire holder 8 connected to the bearing installation chamber 2, and the third sub-support body 41 connected to the auxiliary support body; the ground wire holder 8 protrudes toward the motor stator with respect to the third sub-support 41; and the thickness dimension of the ground wire holder is larger than that of the third sub-support 41 in the radial direction perpendicular to the bearing installation chamber 2.
In the embodiment of the invention, the grounding wire seat 8 is used for installing the grounding wire, so that the grounding wire seat is prevented from being deformed and damaged in order to avoid stress concentration, and the thickness dimension of the grounding wire is designed to be larger; the grounding wire seat 8 protrudes towards the motor stator relative to the third sub-supporting body 41, so that the grounding wire seat can be better matched with the motor stator, and the fixing firmness of the motor stator is improved.
As shown in fig. 3 and 4, in the embodiment of the present invention, the outer cylinder bottom body 10 extends outward to form a water blocking rib 11 wrapped outside the motor 12.
In the embodiment of the invention, the water retaining reinforcing rib 11 is arranged on the outer cylinder bottom body 10, and the water retaining reinforcing rib 11 is wrapped outside the motor of the washing machine, so that on one hand, the water retaining reinforcing rib has a stable effect on the motor of the washing machine, buffers the vibration amplitude of the motor, effectively reduces the noise generated by vibration, on the other hand, the water inlet leakage can be prevented, and condensed water is prevented from flowing into the motor to cause short circuit.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. The outer cylinder bottom of the washing machine is characterized by comprising an outer cylinder bottom body and a shaft sleeve embedded in the outer cylinder bottom body; the shaft sleeve comprises a bearing installation chamber capable of being assembled with a bearing, and a support body radially extends outwards from the outer wall of the bearing installation chamber;
the shaft sleeve further comprises an annular housing; the supporting body extends along the radial direction of the bearing installation chamber to be connected with the inner wall of the annular shell;
the motor stator is provided with a motor stator mounting hole, the supporting body is provided with a mounting part, the mounting part comprises a mounting part body, the mounting part body is provided with a mounting hole matched with the motor stator mounting hole, and the motor stator is fixedly connected to the supporting body through the matching of the motor stator mounting hole and the mounting hole;
the support body is divided into a first sub-support body connected with the outer wall of the bearing installation chamber, an installation part body and a second sub-support body connected with the annular shell along the radial direction of the bearing installation chamber; the first sub-supporting body and one side of the mounting part body facing the motor stator are arranged in a protruding mode relative to the second sub-supporting body;
a thickness dimension of the mounting portion body is larger than thickness dimensions of the first sub-support body and the second sub-support body in an axial direction of the bearing mounting chamber;
the bulge is arranged near the motor stator mounting hole, the clamping groove is formed in the bulge and matched with the second sub-support body, and when the motor stator is mounted, the clamping groove can be clamped on the second sub-support body.
2. A washing machine outer drum bottom according to claim 1, characterized in that the shaft sleeve comprises a plurality of supporting bodies; the support bodies are arranged on the outer wall of the bearing installation chamber at intervals along the circumferential direction of the bearing installation chamber and extend along the radial direction of the bearing installation chamber.
3. The washing machine outer drum bottom according to claim 2, characterized in that the bearing mounting chamber is arranged coaxially with the outer drum bottom body.
4. A washing machine outer drum bottom according to claim 1, characterized in that the annular outer casing extends a circle along the outer circumference of the outer drum bottom.
5. A washing machine outer drum bottom according to claim 1, characterized in that the axis of the mounting hole is parallel to the axis of the bearing mounting chamber.
6. A washing machine outer drum bottom according to claim 1, characterized in that the first sub-supporting body and the mounting part body are protruded to the same size on the side facing the motor stator.
7. The outer drum bottom of the washing machine as claimed in any one of claims 1 to 6, wherein the supporting body is further provided with a positioning portion, and the positioning portion is provided with a positioning hole for positioning the motor stator during installation.
8. The outer drum bottom of the washing machine as claimed in claim 7, wherein the positioning hole and the mounting hole are located on the same support body, and the axis of the positioning hole is parallel to the axis of the mounting hole.
9. The outer drum bottom of the washing machine as claimed in any one of claims 1 to 6, wherein the support body is provided with a ground wire seat, and the ground wire seat is provided with a ground wire hole.
10. A washing machine outer drum bottom according to claim 9, characterized in that the ground wire hole and the mounting hole are respectively positioned on one support body.
11. The outer drum bottom of a washing machine as claimed in claim 1, wherein a water blocking reinforcing rib wrapped outside the motor extends outwards from the outer drum bottom body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516502.2A CN110331557B (en) | 2019-06-14 | 2019-06-14 | Outer cylinder bottom of washing machine |
| PCT/CN2020/095818 WO2020249084A1 (en) | 2019-06-14 | 2020-06-12 | Washing machine shaft sleeve and washing machine outer drum base |
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| CN201910516502.2A CN110331557B (en) | 2019-06-14 | 2019-06-14 | Outer cylinder bottom of washing machine |
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| CN110331557B true CN110331557B (en) | 2022-09-16 |
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| WO2020249084A1 (en) * | 2019-06-14 | 2020-12-17 | 青岛海尔滚筒洗衣机有限公司 | Washing machine shaft sleeve and washing machine outer drum base |
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| CN110331557A (en) | 2019-10-15 |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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Effective date of registration: 20220818 Address after: 400026 No.303, Block E, No.1 Gangcheng South Road, Jiangbei District, Chongqing Applicant after: Chongqing Haier Front-loading Washing Machine Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Applicant before: Haier Zhijia Co.,Ltd. |
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