Roller washing machine
By using sheet metal reinforcement components to fix the outer drum and the casing in the drum washing machine, the problems of cracking bolt holes in the outer drum and deformation of the casing were solved, thereby reducing vibration and noise and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
Existing drum washing machines are prone to cracking of the bolt holes in the outer drum and deformation around the bolt holes in the casing during transportation, leading to vibration and noise problems.
Sheet metal reinforcement components are used, including a lower reinforcement plate, an upper reinforcement plate, a rear side plate, and a rear cover plate. The high yield strength of sheet metal reduces the impact of vibration on the outer cylinder and the box during transportation, and the outer cylinder and the box are fixed together by bolts.
It effectively prevents cracking of the outer cylinder bolt holes, reduces housing deformation, lowers noise, increases the overall natural frequency, and enhances the user experience.
Smart Images
Figure CN223963707U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of household appliance technology, and in particular to a drum washing machine. Background Technology
[0002] Currently, drum washing machines have become an indispensable household appliance in our daily lives. In related technologies, the outer drum material of existing drum washing machines is generally made of PP with glass fiber, namely glass fiber reinforced polypropylene (PP / GF), a composite material that strengthens polypropylene (PP) by adding glass fiber (GF).
[0003] However, drum washing machines typically use packaging bolts to secure the outer drum to the casing. This means that bolt holes are designed on both the back of the casing and the outer drum, and these bolts connect the casing and outer drum after assembly. During packaging and transportation, handling or bumps can easily cause the bolt holes on the outer drum to crack. Simultaneously, dents often appear around the bolt holes on the casing, affecting the product's appearance. Furthermore, if the bolt holes crack, the outer drum and casing may not remain relatively fixed, increasing vibration during use and resulting in greater noise, negatively impacting the user experience. Utility Model Content
[0004] In view of this, the purpose of this disclosure is to provide a washing machine that at least solves the technical problem in the prior art where the corresponding packaging bolt hole areas of the casing and outer drum in drum washing machines are prone to cracking or deformation.
[0005] To achieve at least one of the above objectives, this disclosure provides the following technical solutions:
[0006] This disclosure provides a drum washing machine, the drum washing machine comprising:
[0007] Box;
[0008] An outer cylinder, which is disposed inside the housing;
[0009] and sheet metal reinforcement components for fixing the outer cylinder into the housing, the sheet metal reinforcement components including:
[0010] An outer cylinder reinforcement assembly, the outer cylinder reinforcement assembly including a lower cylinder reinforcement plate disposed on the lower side of the outer cylinder and an upper cylinder reinforcement plate disposed on the upper side of the outer cylinder;
[0011] A housing reinforcement assembly, comprising a first reinforcement plate disposed above the rear cover of the housing, and a second reinforcement plate disposed inside the rear cover of the housing;
[0012] The first reinforcing plate and the rear cover plate cooperate to form the rear side plate of the box body, and the first reinforcing plate and the upper reinforcing plate of the cylinder cooperate to fix the bottom of the outer cylinder; the second reinforcing plate and the lower reinforcing plate of the cylinder cooperate to support and fix the peripheral side wall of the outer cylinder.
[0013] In the above technical solution, sheet metal reinforcement components are used to transfer the force exerted on the outer drum by the washing machine cabinet during transportation (due to external forces caused by bumps, vibrations, or impacts), thereby reducing the impact of the cabinet on the packaging bolt holes of the outer drum. In addition, since the first and second reinforcing plates are made of sheet metal, the high yield strength of the sheet metal reinforcement components can also reduce or limit the deformation of the rear panel of the cabinet.
[0014] In some embodiments, the middle section of the second reinforcing plate protrudes towards the rear side plate of the housing to form an abutment portion, which abuts against the rear cover plate of the housing.
[0015] In the above technical solution, the second reinforcing plate is optimized so that the top of the second reinforcing plate abuts against the rear cover of the cabinet, thereby increasing the natural frequency of the whole machine and reducing the impact of random vibrations on the drum washing machine during transportation or use.
[0016] In some embodiments, the abutting portion is provided with a plate reinforcement groove recessed toward the side opposite to the rear cover plate.
[0017] In the above technical solution, the design based on the plate reinforcement groove can enhance the structural strength of the second reinforcement plate while ensuring that the second reinforcement plate of the sheet metal material has a certain toughness, thereby improving the stability of the second reinforcement plate in supporting and fixing the outer cylinder.
[0018] In some embodiments, the edge of the second reinforcing plate has a flange structure.
[0019] In the above technical solution, the design method based on the flange structure can improve the overall structural strength of the second reinforcing plate while ensuring that the second reinforcing plate of sheet metal has a certain degree of toughness.
[0020] In some embodiments, the rear cover plate has a first protrusion protruding toward one side of the second reinforcing plate in the middle, and the first protrusion abuts against the middle section of the second reinforcing plate to reduce vibration of the drum washing machine.
[0021] In the above technical solution, by setting a protrusion on the rear cover plate, the middle section of the second reinforcing plate is effectively abutted against the inner side of the rear cover plate, thereby achieving efficient vibration reduction for the drum washing machine.
[0022] In some embodiments, the middle section of the second reinforcing plate has a hollow structure adapted to the first protrusion. The hollow structure is used to cooperate with the first protrusion so that the second reinforcing plate limits and supports the rear cover plate.
[0023] In the above technical solution, in order to improve the contact stability between the back cover and the second reinforcing plate, a hollow structure is set in the middle plate section to cooperate with the first protrusion formed in the middle of the back cover. The middle plate section of the second reinforcing plate limits the first protrusion and slightly lifts the back cover, which can effectively reduce the vibration of the drum washing machine during use.
[0024] In some embodiments, the second reinforcing plate extends along the left-right direction of the housing, one end of the second reinforcing plate is fixedly connected to the left side plate of the housing, and the other end of the second reinforcing plate is fixedly connected to the right side plate of the housing.
[0025] In the above technical solution, since the second reinforcing plate is not directly connected to the rear cover plate, this method can further reduce the deformation of the rear cover plate caused by the force exerted on the second reinforcing plate by the outer cylinder.
[0026] In some embodiments, the second reinforcing plate extends along the left-right direction of the housing, one end of the second reinforcing plate is fixedly connected to the rear cover plate, and the other end of the second reinforcing plate is fixedly connected to the rear cover plate.
[0027] In the above technical solution, the connection method is made simpler by connecting the second reinforcing plate and the rear cover plate. After the two are connected and fixed, they can be integrated into one unit. When maintenance or replacement is required, they can be removed as a whole, making the entire disassembly and assembly operation more convenient and efficient.
[0028] In some embodiments, the second reinforcing plate extends along the left-right direction of the box body, one end of the second reinforcing plate is fixedly connected to the left side plate and the rear cover plate of the box body respectively, and the other end of the second reinforcing plate is fixedly connected to the right side plate and the rear cover plate of the box body respectively.
[0029] In the above technical solution, by fixing the second reinforcing plate to the left side plate, the right side plate and the rear cover plate, the stability of the overall structure of the box can be further improved.
[0030] In some embodiments, the enclosure further includes: a top panel, a left side panel, and a right side panel;
[0031] The first reinforcing plate has two long sides opposite each other in the left-right direction of the box body, and the two long sides are respectively fixed to the rear plate side of the top plate and the upper plate side of the rear cover plate; the first reinforcing plate has two short sides opposite each other in the up-down direction of the box body, and the two short sides are respectively fixed to the left side plate and the right side plate.
[0032] In the above technical solution, the first reinforcing plate and the rear cover plate cooperate to form the rear side plate of the box. When the first reinforcing plate is installed, in addition to connecting with the rear cover plate, the first reinforcing plate is also fixedly connected with the left side plate, right side plate and top plate of the box, thereby improving the stability of the overall structure of the box.
[0033] In some embodiments, the upper reinforcing plate of the cylinder is provided with a first packaging bolt hole, the lower reinforcing plate of the cylinder is provided with a second packaging bolt hole, the first reinforcing plate is provided with a third packaging bolt hole that mates with the first packaging bolt hole, and the second reinforcing plate is provided with a fourth packaging bolt hole that mates with the second packaging bolt hole.
[0034] In the above technical solution, the installation cost is effectively reduced by connecting the outer cylinder reinforcement component and the housing reinforcement component with bolts. Furthermore, the bolt connection method also ensures connection stability while improving the overall assembly and disassembly efficiency. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 This is an illustration of a drum washing machine provided according to some embodiments of the present disclosure. Figure 1 ;
[0037] Figure 2 for Figure 1 A cross-sectional view at position AA in the middle;
[0038] Figure 3 This is an illustration of a drum washing machine provided according to some embodiments of the present disclosure. Figure 2 ;
[0039] Figure 4 This is an illustration of a drum washing machine provided according to some embodiments of the present disclosure. Figure 3 ;
[0040] Figure 5 This is a schematic diagram of the assembly state of the rear cover and the second reinforcing plate according to some embodiments of this disclosure;
[0041] Figure 6 This is a schematic diagram of the outer side of the rear cover provided according to some embodiments of the present disclosure;
[0042] Figure 7 This is a schematic diagram of the inner side of a rear cover provided according to some embodiments of the present disclosure;
[0043] Figure 8 This is a schematic diagram of a first reinforcing plate (facing the rear cover plate) provided according to some embodiments of the present disclosure;
[0044] Figure 9 This is a schematic diagram of a first reinforcing plate (facing away from the rear cover plate) provided according to some embodiments of the present disclosure;
[0045] Figure 10 This is a schematic diagram of a cylinder reinforcement plate provided according to some embodiments of the present disclosure;
[0046] Figure 11 This is a schematic diagram of a second reinforcing plate provided according to some embodiments of the present disclosure;
[0047] Figure 12 This is a schematic diagram of a lower reinforcing plate provided according to some embodiments of the present disclosure.
[0048] The attached figures are labeled as follows:
[0049] 10. Drum washing machine; 11. Drum assembly; 111. Upper drum reinforcing plate; 1111. First packaging bolt hole; 112. Lower drum reinforcing plate; 1121. Second packaging bolt hole; 113. Outer drum; 12. Cabinet; 121. First reinforcing plate; 1211. Third packaging bolt hole; 122. Rear cover plate; 1221. First protrusion; 1222. Clearance groove; 123. Second reinforcing plate; 1231. Plate end; 1232. Fourth packaging bolt hole; 1233. Pressed structure; 1234. Hollowed-out structure; 1235. Middle plate segment; 124. Top plate; 125. Left side plate; 126. Right side plate. Detailed Implementation
[0050] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present disclosure will become clearer and more apparent.
[0051] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit this disclosure; the terms “comprising” and “having” and any variations thereof in the specification and the foregoing description of this disclosure are intended to cover non-exclusive inclusion.
[0052] The term "embodiment" as used in this disclosure means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this disclosure can be combined with other embodiments.
[0053] The specific term "exemplary" used in this disclosure means "serving as an example, embodiment, or illustration." Any embodiment illustrated as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.
[0054] In the description of this disclosure, the technical terms “first,” “second,” “third,” etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary or secondary relationship of the indicated technical features.
[0055] In the description of this disclosure, the technical term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.
[0056] In the description of this disclosure, the technical terms "upper", "lower", "inner", "outer", "front", "back", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship under the working state of this disclosure. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0057] In the description of this disclosure, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0058] In the description of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0059] In the description of this disclosure, "multiple" means two or more (including two), unless otherwise expressly and specifically limited.
[0060] In the description of this disclosure, the same reference numerals denote the same components, and for brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, and other dimensions of various components in the embodiments of this disclosure shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this disclosure.
[0061] As part of the inventive concept of this disclosure, before describing the embodiments of this disclosure, it is necessary to analyze the causes of the problems of cracked outer drum bolt holes and easily deformed cabinet bolt hole positions in existing drum washing machines in related technologies, and obtain the technical solutions of the embodiments of this disclosure through reasonable analysis.
[0062] In related technologies, the outer drum of a drum washing machine is generally made of PP reinforced with fiberglass. Drum washing machines typically use packaging bolts to secure the outer drum to the casing. This makes it prone to bolt hole cracking during packaging and transportation due to handling or bumps. Simultaneously, dents often appear around the bolt holes in the casing, affecting the product's appearance. Furthermore, once bolt holes crack, the outer drum and casing may not remain relatively fixed, increasing vibration during use and resulting in greater noise.
[0063] To this end, this disclosure provides a drum washing machine, which optimizes the fixing method between the outer drum and the cabinet by setting a first reinforcing plate above the rear cover of the cabinet (i.e., the upper rear side of the cabinet) to cooperate with the upper drum reinforcing plate on the upper side of the outer drum; at the same time, a second reinforcing plate is set inside the rear cover of the cabinet to cooperate with the lower drum reinforcing plate set below the outer drum, thereby forming a fixed installation of the outer drum inside the cabinet.
[0064] The technical solutions of the embodiments of this disclosure are described in detail below with reference to the accompanying drawings. The technical features involved in the different embodiments of this disclosure described below can be combined with each other as long as they do not conflict with each other.
[0065] like Figures 1-5 As shown, an embodiment of this disclosure provides a drum washing machine 10, which includes a housing 12, a drum assembly 11, and sheet metal reinforcing components. The drum assembly 11 includes an outer drum 113 and an inner drum (not shown) coaxially sleeved together. Optionally, the outer drum 113 may be a sheet metal outer drum made of sheet metal material. The sheet metal reinforcing components are used to fix the outer drum 113 in the drum assembly 11 inside the housing 12.
[0066] Specifically, the sheet metal reinforcement assembly includes an outer cylinder reinforcement assembly and a housing 12 reinforcement assembly. The outer cylinder reinforcement assembly includes a lower cylinder reinforcement plate 112 and an upper cylinder reinforcement plate 111. The lower cylinder reinforcement plate 112 is disposed on the lower side of the outer cylinder 113, and is connected to the corresponding support base plate on the housing 12 base via shock absorbers or other connecting components. The lower cylinder reinforcement plate 112 provides support and fixation for the outer cylinder 113 on the lower side of the outer cylinder 113. The upper cylinder reinforcement plate 111 is disposed on the upper side of the outer cylinder 113 and is used to fix it on the upper side of the outer cylinder 113. The housing 12 reinforcement assembly includes a first reinforcement plate 121 disposed above the rear cover plate 122 of the housing 12, and a second reinforcement plate 123 disposed in the middle of the rear cover plate 122 of the housing 12. The first reinforcing plate 121 and the rear cover plate 122 cooperate to form the rear side plate of the box body 12, and the first reinforcing plate 121 is fixedly connected to the upper reinforcing plate 111 of the cylinder to fix the bottom of the outer cylinder 113 (referring to the end of the outer cylinder 113 near the rear cover plate 122 of the box body 12); the second reinforcing plate 123 is fixedly connected to the lower reinforcing plate 112 of the cylinder to support and fix the peripheral side wall of the outer cylinder 113.
[0067] In this embodiment, considering that the existing PP reinforced fiberglass material used for the outer drum is prone to cracking of the bolt holes or deformation of the rear panel of the casing 12 during transportation, a sheet metal reinforcement assembly is added inside the casing 12 to fix the outer drum. The principle is to use the sheet metal reinforcement assembly to unload and transmit the force exerted on the outer drum 113 by the casing 12 (due to bumps, vibrations, or impacts) during the transportation of the drum washing machine 10, thereby reducing the impact of the casing 12 on the packaging bolt holes of the outer drum 113. Since the first reinforcing plate 121 and the second reinforcing plate 123 are made of sheet metal, the yield strength of the sheet metal reinforcement assembly is higher than that of the PP reinforced fiberglass material, which can also reduce or limit the deformation of the rear panel of the casing 12. In addition, if the outer drum 113 is made of sheet metal, it can further prevent the casing 12 from affecting the packaging bolt holes of the outer drum 113, protecting the packaging bolt holes at the corresponding locations.
[0068] In addition, in this embodiment, the rear side panel of the box 12 is designed to be assembled from the first reinforcing plate 121 and the rear cover plate 122, which not only enhances the deformation resistance of the upper part of the rear side panel of the box 12, but also avoids the high cost problem caused by using sheet metal material for the entire rear side panel.
[0069] It should be noted that sheet metal work is a comprehensive cold processing technology for thin metal sheets (usually less than 6mm), mainly including shearing, punching / cutting / combined cutting, bending, riveting, splicing, and forming (such as automobile bodies). For the sheet metal parts involved in this disclosure, such as outer cylinders and sheet metal reinforcing components, commonly used materials include low carbon steel, stainless steel, and aluminum alloys.
[0070] In some exemplary embodiments, to reduce the impact of random vibrations on the drum washing machine 10 during transportation or use, the second reinforcing plate 123 is optimized so that it abuts against the rear cover plate 122 of the casing 12, thereby increasing the natural frequency of the entire machine. For example, as... Figures 8-9 As shown, the second reinforcing plate 123 is a long plate arranged along the left-right direction of the housing 12, wherein the middle plate segment 1235 of the second reinforcing plate 123 (corresponding to Figure 8 The area between the two dotted lines protrudes towards the rear panel of the housing 12 to form an abutment portion, which abuts against the rear cover plate 122 of the housing 12. It is understood that the second reinforcing plate 123 can also be a square plate or other plate-shaped structure, but the middle area of the second reinforcing plate 123 needs to form a protrusion of a certain height to abut against the inner side of the rear cover plate 122.
[0071] In this embodiment, the second reinforcing plate 123 adopts a long plate structure, which can be understood as an "arch" shape or a "C" shape, that is, to ensure that the middle plate segment 1235 of the second reinforcing plate 123 can be positioned relative to the two plate ends 1231 of the second reinforcing plate 123 (corresponding to...). Figure 8 The outer portions of the two dotted lines in the middle protrude. When assembling the second reinforcing plate 123 with the rear cover plate 122 of the housing 12, the protrusion formed by the middle section 1235 of the second reinforcing plate 123 can be used to press against the rear cover plate 122, that is, to apply a certain pre-tightening force to the rear cover plate 122. This design can avoid the formation of a certain gap between the middle section 1235 of the rear cover plate 122 and the second reinforcing plate 123, and can effectively prevent noise caused by the collision between the second reinforcing plate 123 and the rear cover plate 122 due to the vibration of the outer drum 113 during the operation of the drum washing machine 10.
[0072] It should be noted that, in order to facilitate the assembly of the second reinforcing plate 123 with the rear cover plate 122, the middle plate section 1235 of the second reinforcing plate 123 has a first flat plate surface that is adapted to the inner side of the rear cover plate 122; the two plate ends 1231 of the second reinforcing plate 123 should also be able to fit as close as possible to the rear cover plate 122, and at this time, the two plate ends 1231 of the second reinforcing plate 123 both form a second flat plate surface that is adapted to the rear cover plate 122.
[0073] In some exemplary embodiments, to enhance the structural strength of the second reinforcing plate 123, the plate body of the second reinforcing plate 123 is subjected to a pressing process. For example, as... Figure 8 As shown, the second reinforcing plate 123 is provided with a forming structure 1233 extending along its length. In addition, a flange structure can be formed on the edge of the second reinforcing plate 123.
[0074] Optionally, such as Figure 8 As shown, the pressed structure 1233 is a reinforcing groove formed by pressing the middle plate segment 1235 on the side facing away from the rear cover plate 122, such as an arc-shaped groove pressed along the length of the second reinforcing plate 123. The cross-section of this arc-shaped groove in the width direction of the plate can be regarded as a semi-circular or approximately semi-circular structure, which can improve the overall structural strength of the second reinforcing plate 123 while ensuring that the sheet metal material of the second reinforcing plate 123 has a certain degree of toughness.
[0075] It should be noted that a profiled structure is formed by pressing thin metal sheets into corrugated sheets of a certain shape and size using a profiled press machine, and then assembling these profiled sheets together. Common profiled metal sheets include profiled steel sheets and profiled aluminum sheets. In the embodiment, the profiled structure 1233 can be understood as a groove pressed along the length of the second reinforcing plate 123. The length and width of this groove can be pressed according to actual needs. Furthermore, when the profiled structure 1233 is designed as an arc-shaped groove, the bottom and edges of the groove are pressed to form transition arcs, ensuring a smooth overall appearance.
[0076] In some exemplary embodiments, a clearance groove 1222 is formed in the middle region of the rear cover plate 122 to increase the internal space of the housing 12. Increasing the internal space of the housing 12 facilitates the installation of components such as the cylinder assembly 11 and the motor. For this purpose, a protrusion protruding towards the inside of the rear cover plate 122 can be provided on the rear cover plate 122, ensuring effective contact between the middle section 1235 of the second reinforcing plate 123 and the inside of the rear cover plate 122. For example, as... Figure 7As shown, the rear cover plate 122 has a first protrusion 1221 protruding towards the second reinforcing plate 123 in the middle. The first protrusion 1221 abuts against the middle section 1235 of the second reinforcing plate 123 to dampen the drum washing machine 10. Optionally, the first protrusion 1221 is a hemispherical protrusion.
[0077] In this embodiment, since the rear cover plate 122 of the housing 12 is connected to the second reinforcing plate 123, and the rear cover plate 122 has a protrusion in the middle, when the second reinforcing plate 123 and the rear cover plate 122 are connected by corresponding connectors (such as screws), the screw preload can be increased, making the connection more reliable.
[0078] It should be noted that the protrusion can also be set to other shapes, such as an elliptical protrusion or a frustum-shaped protrusion. In addition, the first protrusion 1211 is not necessarily a perfect hemisphere; it can be a partial hemisphere or a multi-hemispherical hemisphere.
[0079] In some exemplary embodiments, considering that the rear cover 122 is provided with a protrusion, in order to improve the stability of the rear cover 122 and the second reinforcing plate 123 in the abutment state, the structure of the second reinforcing plate 123 can be further optimized. For example, such as... Figure 9 As shown, a hollow structure 1234 adapted to the first protrusion 1221 is provided on the middle plate segment 1235 of the second reinforcing plate 123. The hollow structure 1234 is used to cooperate with the first protrusion 1221 so that the second reinforcing plate 123 limits and supports the rear cover plate 122.
[0080] During transportation, the drum washing machine 10 will experience random vibrations. When using the drum washing machine 10 structure described in the above embodiment, the natural frequency can be increased by adding a second reinforcing plate 123, which can more effectively avoid the risk of failure caused by vibration. In addition, during user use, such as during the spin-drying process, the cabinet 12 will vibrate. Since the first protrusion 1221 formed in the middle of the rear cover plate 122 can be lifted by the middle plate segment 1235 of the second reinforcing plate 123, the vibration can also be effectively reduced based on this design.
[0081] In this embodiment, as Figure 5 and Figure 9 As shown, the semi-circular cross-section of the pressed structure 1233 formed at the center of the second reinforcing plate 123 can span the hollow structure 1234 (i.e., semi-circular holes are opened on both sides of the pressed structure 1233), which avoids reducing the lateral stiffness of the second reinforcing plate 123 at the hollow structure 1234. In addition, based on the flange structure on both sides of the second reinforcing plate 123, the lateral stiffness can also be improved, thereby increasing the overall first-order natural frequency and effectively avoiding resonance.
[0082] In some exemplary embodiments, to secure the second reinforcing plate 123 to the housing 12, it can be directly fixedly connected to the rear cover plate 122. For example, as... Figure 5 and Figure 8 As shown, the first end of the second reinforcing plate 123 (corresponding to one of the two end plates 1231) is fixedly connected to the rear cover plate 122, and the second end of the second reinforcing plate 123 (corresponding to the other of the two end plates 1231) is fixedly connected to the rear cover plate 122. This connection method is simple, and the disassembly and assembly operations are more convenient during maintenance and replacement.
[0083] In another alternative, the second reinforcing plate 123 can also be connected to the left side plate 125 and the right side plate 126 of the housing 12. For example, the first end of the second reinforcing plate 123 (corresponding to one of the two end plates 1231) is fixedly connected to the left side plate 125 of the housing 12, and the second end of the second reinforcing plate 123 (corresponding to the other of the two end plates 1231) is fixedly connected to the right side plate 126 of the housing 12. This method can further reduce or limit the deformation of the rear cover plate 122 caused by the force exerted on the second reinforcing plate 123 by the outer cylinder 113.
[0084] It should be noted that the second reinforcing plate 123 can also be simultaneously connected to the left side plate 125, right side plate 126 and rear cover plate 122 of the housing 12, thereby further improving the structural stability of the housing 12 through the arrangement of the second reinforcing plate 123.
[0085] In some exemplary embodiments, considering that the first reinforcing plate 121 and the rear cover plate 122 cooperate to form the rear side plate of the housing 12, when installing the first reinforcing plate 121, in addition to connecting it to the rear cover plate 122, the first reinforcing plate 121 can also be fixedly connected to structures such as the left side plate 125, the right side plate 126, and the top plate 124 of the housing 12. For example, as... Figure 3 and Figure 4 As shown, the housing 12 also includes: a top plate 124, a left side plate 125, and a right side plate 126; wherein, the first reinforcing plate 121 has two long sides opposite to each other in the left-right direction of the housing 12, and the two long sides are respectively fixed to the rear plate edge of the top plate 124 and the upper plate edge of the rear cover plate 122; the first reinforcing plate 121 has two short sides opposite to each other in the up-down direction of the housing 12, and the two short sides are respectively fixed to the left side plate 125 and the right side plate 126.
[0086] Optionally, there are 10 connecting screws around the first reinforcing plate 121, of which 2 are connected to the left side plate 125, 2 are connected to the right side plate 126, 3 are connected to the rear cover plate 122, and 3 are connected to the top plate 124.
[0087] In some exemplary embodiments, the lower reinforcing plate 112 and the upper reinforcing plate 111 are respectively bolted to the outer cylinder 113. The first reinforcing plate 121 is bolted to the top plate 124, the left side plate 125, the right side plate 126, and the rear cover plate 122. The second reinforcing plate 123 is bolted to the rear cover plate 122. To reduce installation costs, the outer cylinder reinforcing assembly and the housing 12 reinforcing assembly can also be connected by bolts. For example, as... Figures 5-8 , Figures 10-12 As shown, the upper reinforcing plate 111 of the cylinder is provided with a first packaging bolt hole 1111, the lower reinforcing plate 112 of the cylinder is provided with a second packaging bolt hole 1121, the first reinforcing plate 121 is provided with a third packaging bolt hole 1211 that mates with the first packaging bolt hole 1111, and the second reinforcing plate 123 is provided with a fourth packaging bolt hole 1232 that mates with the second packaging bolt hole 1121.
[0088] In this embodiment, the outer cylinder and each reinforcing plate are made of sheet metal, which avoids the problem of cracking of plastic bolt columns. The first reinforcing plate 121 and the second reinforcing plate 123 cooperate with the rear cover plate 122 to provide good reinforcement and support for the rear cover plate 122 of the box body 12, reduce or limit the dent deformation around the packaging bolt holes of the box body 12, and at the same time improve the first natural frequency of the box body 12, so as to bring a better user experience.
[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and not to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure, and they should all be covered within the scope of the claims and specification of this disclosure. This disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A drum washing machine, characterized in that, The drum washing machine includes: Box; An outer cylinder, which is disposed inside the housing; and sheet metal reinforcement components for fixing the outer cylinder into the housing, the sheet metal reinforcement components including: An outer cylinder reinforcement assembly, the outer cylinder reinforcement assembly including a lower cylinder reinforcement plate disposed on the lower side of the outer cylinder and an upper cylinder reinforcement plate disposed on the upper side of the outer cylinder; A housing reinforcement assembly, comprising a first reinforcement plate disposed above the rear cover of the housing, and a second reinforcement plate disposed inside the rear cover of the housing; The first reinforcing plate and the rear cover plate cooperate to form the rear side plate of the box body, and the first reinforcing plate is fixedly connected to the upper reinforcing plate of the cylinder to fix the bottom of the outer cylinder; the second reinforcing plate is fixedly connected to the lower reinforcing plate of the cylinder to support and fix the peripheral side wall of the outer cylinder.
2. The drum washing machine according to claim 1, characterized in that, The middle section of the second reinforcing plate protrudes towards the rear side panel of the housing to form an abutment portion, which abuts against the rear cover plate of the housing.
3. The drum washing machine according to claim 2, characterized in that, The abutting part is provided with a plate reinforcement groove formed by a recess on the side opposite to the rear cover plate.
4. The drum washing machine according to claim 3, characterized in that, The second reinforcing plate has a flanged edge structure.
5. The drum washing machine according to claim 2, characterized in that, The rear cover plate has a first protrusion in the middle that protrudes toward the side of the second reinforcing plate, and the first protrusion abuts against the middle section of the second reinforcing plate.
6. The drum washing machine according to claim 5, characterized in that, The second reinforcing plate has a hollow structure on its middle section that is adapted to the first protrusion. The hollow structure is used to cooperate with the first protrusion so that the second reinforcing plate is positioned and supports the rear cover plate.
7. The drum washing machine according to claim 2, characterized in that, The second reinforcing plate extends along the left-right direction of the box body. One end of the second reinforcing plate is fixedly connected to the left side plate of the box body, and the other end of the second reinforcing plate is fixedly connected to the right side plate of the box body.
8. The drum washing machine according to claim 2, characterized in that, The second reinforcing plate extends along the left and right direction of the box body, and the two ends of the second reinforcing plate are fixedly connected to the left and right sides of the rear cover plate, respectively.
9. The drum washing machine according to claim 2, characterized in that, The second reinforcing plate extends along the left and right direction of the box body. One end of the second reinforcing plate is fixedly connected to the left side plate and the rear cover plate of the box body, respectively, and the other end of the second reinforcing plate is fixedly connected to the right side plate and the rear cover plate of the box body, respectively.
10. The drum washing machine according to any one of claims 1-9, characterized in that, The enclosure also includes: a top panel, a left side panel, and a right side panel; The first reinforcing plate has two long sides opposite each other in the left-right direction of the box body, and the two long sides are respectively fixed to the rear plate side of the top plate and the upper plate side of the rear cover plate; the first reinforcing plate has two short sides opposite each other in the up-down direction of the box body, and the two short sides are respectively fixed to the left side plate and the right side plate.