Clothes dryer

Abstract

The utility model discloses a clothes dryer which comprises a base, a first shell, a second shell and a cover plate, the first shell and the second shell are spliced to the base through a guide structure, the cover plate is installed on the top of the first shell and the top of the second shell, the guide structure comprises a guide part and an insertion part, and the insertion part is inserted into the guide part. The guiding part is arranged on the base in a protruding mode, the inserting part is arranged on the splicing end face, opposite to the second shell, of the first shell in a protruding mode, a dovetail groove in interference fit with the guiding part is formed in the inserting part, and an inserting groove locked with the inserting part in a matched mode is formed in the second shell. The base and the shell can be quickly positioned and mounted, the mounting efficiency and precision are improved, and primary locking and fixing can be realized after mounting.

Description

Technical Field

[0001] This application relates to the technical field of clothes dryers, and more particularly to a clothes dryer. Background Technology

[0002] In current dryer assembly processes, the base and outer casing are primarily secured using bolts. While this traditional method ensures structural stability to some extent, it presents several challenges in practice. Specifically, due to the lack of a precise positioning structure between the base and casing, assemblers often need to spend considerable time and effort repeatedly adjusting their relative positions to ensure accurate alignment when bolting.

[0003] The complexity of this alignment process not only increases the difficulty of assembly but may also lead to a significant reduction in production efficiency. Furthermore, repeated adjustments can cause unnecessary wear or damage to the overall structure of the dryer, thus affecting its lifespan and performance stability. Therefore, improving the connection between the base and the outer casing to achieve faster, more accurate, and reliable assembly has become a pressing technical problem to be solved in current dryer assembly processes. Utility Model Content

[0004] The purpose of this application is to provide a clothes dryer that enables rapid positioning and installation between the base and the housing, improving installation efficiency and accuracy, and providing initial locking and fixation after installation.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On one hand, a clothes dryer is provided, comprising: a base, a first housing, a second housing, and a cover plate. The first housing and the second housing are spliced ​​onto the base via a guide structure. The cover plate is installed on the top of the first housing and the second housing. The guide structure includes a guide portion and a plug-in portion. The guide portion protrudes from the base, and the plug-in portion protrudes from the splicing end face of the first housing relative to the second housing. The plug-in portion has a dovetail groove that is interference-fitted with the guide portion, and the second housing has a plug-in groove that is locked in place with the plug-in portion.

[0007] Furthermore, the cross-section of the plug portion is trapezoidal.

[0008] Furthermore, the upper part of the first housing extends inward to form a first folded edge, and the upper part of the second housing extends inward to form a second folded edge that connects with the first folded edge. The first folded edge and the second folded edge form a mounting position for mounting the cover plate.

[0009] Furthermore, the first folded edge is connected to the cover plate by fasteners, and the second folded edge is connected to the cover plate by fasteners.

[0010] Furthermore, the cover plate has stepped holes that mate with the fastener, so that the top surface of the fastener is flush with the top surface of the cover plate after the fastener is locked.

[0011] Furthermore, the distance between the top surface of the first folded edge and the top surface of the first housing is the same as the thickness of the cover plate, and the distance between the top surface of the second folded edge and the top surface of the second housing is the same as the thickness of the cover plate.

[0012] Furthermore, the base is provided with inclined guide rails at both ends, and the extension direction of the guide rails is consistent with the extension direction of the guide portion.

[0013] Furthermore, the tilt angle of the guide rail is 25° to 50°, and the height is 10 to 30 mm.

[0014] Furthermore, the guide rail surface is provided with a polytetrafluoroethylene coating with a coating thickness of 0.1 to 0.3 mm.

[0015] Furthermore, the guide portion is symmetrically arranged on both sides of the base, and the length of the guide portion is 1 / 8 to 1 / 5 of the length of the base.

[0016] The beneficial effects of this application are as follows: The dryer forms a three-dimensional spatial constraint system through the interference fit between the linear guide on the base and the dovetail groove of the housing. In the X / Y axis direction, the tapered sidewall of the trapezoidal cross-section of the dovetail groove generates a self-centering effect, automatically correcting the positional deviation within a certain error range when the first housing translates. In the Z axis direction, the wedge-shaped chamfer contact between the insertion part and the insertion groove of the second housing generates a pre-tightening force, achieving temporary locking through the elastic deformation of the material. The interference fit between the guide and the dovetail groove eliminates assembly gaps through local plastic deformation, while the elastic buckle in the insertion groove provides vibration-resistant fixation before the cover plate is installed, forming a phased assembly mechanical logic. This structure greatly reduces assembly time, significantly improves positioning accuracy, and greatly reduces the amount of bolts used, thus lowering the overall cost. Attached Figure Description

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a perspective view of the clothes dryer described in the embodiments of this application;

[0019] Figure 2 This is an exploded view of the clothes dryer described in the embodiments of this application;

[0020] Figure 3This is a perspective view of the base described in the embodiment of this application;

[0021] Figure 4 This is a perspective view of the first housing in an embodiment of this application;

[0022] Figure 5 This is a perspective view of the second housing according to an embodiment of this application;

[0023] Figure 6 This is a perspective view of the cover plate described in an embodiment of this application.

[0024] In the figure: 1. Base; 101. Guide part; 102. Guide rail; 2. First housing; 201. Insertion part; 202. First folded edge; 2011. Dovetail groove; 3. Second housing; 301. Insertion groove; 302. Second folded edge; 4. Cover plate; 401. Stepped hole; 5. Fastener. Detailed Implementation

[0025] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" 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 application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being 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 includes the first feature being 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.

[0028] like Figures 1 to 6As shown, this embodiment provides a clothes dryer, including: a base 1, a first housing 2, a second housing 3, and a cover plate 4. The first housing 2 and the second housing 3 are spliced ​​on the base 1 by a guide structure. The cover plate 4 is installed on the top of the first housing 2 and the second housing 3. The guide structure includes a guide part 101 and a plug-in part 201. The guide part 101 protrudes from the base 1, and the plug-in part 201 protrudes from the splicing end face of the first housing 2 opposite to the second housing 3. The plug-in part 201 has a dovetail groove 2011 that is interference-fitted with the guide part 101. The second housing 3 has a plug-in groove 301 that is locked to the plug-in part 201.

[0029] Based on the above scheme, the dryer forms a three-dimensional spatial constraint system through the interference fit between the linear guide 101 on the base 1 and the dovetail groove 2011 of the housing: in the X / Y axis direction, the tapered sidewall of the trapezoidal cross section of the dovetail groove 2011 generates a self-centering effect, which automatically corrects the positional deviation within ±0.2mm when the first housing 2 is translated; in the Z axis direction, the wedge-shaped chamfer contact between the insertion part 201 and the insertion groove 301 of the second housing 3 generates a preload force of 5 to 10N, which is temporarily locked by utilizing the elastic deformation of the material. The interference fit (0.1 to 0.3mm) between the guide 101 and the dovetail groove 2011 eliminates the assembly gap through local plastic deformation, while the elastic buckle in the insertion groove 301 provides vibration-resistant fixation before the cover plate 4 is installed, forming a mechanical logic of staged assembly.

[0030] This structure reduces assembly time from 180 seconds to 45 seconds, improves positioning accuracy to ±0.2mm (compared to ±1.5mm in traditional processes), reduces bolt usage by 70%, and lowers overall costs by 28%. Vibration testing shows an 82% reduction in resonance point offset and a joint displacement of <0.05mm, meeting IP54 protection requirements. Combined with a hardness gradient design (base 1HRC28 / shell HRC22) and controllable disassembly force of 30 to 50N, maintenance efficiency is improved by 60%, mold life is extended to 500,000 cycles, and it adapts to the rapid changeover requirements of flexible production lines.

[0031] Furthermore, the cross-section of the insertion part 201 is trapezoidal. The interference fit between the guide part 101 and the dovetail groove 2011 forms a three-dimensional spatial constraint system, ensuring positional accuracy and stability during assembly. The trapezoidal cross-section design of the insertion part 201 further enhances the self-centering of the assembly, reduces contact stress concentration, and compensates for machining tolerances through geometric symmetry, making the assembly process smoother and more efficient. In addition, this design significantly improves the structure's resistance to transverse shear, providing a solid guarantee for the overall performance and service life of the dryer. These innovative designs work together to significantly shorten assembly time, significantly improve positioning accuracy, effectively control costs, and simultaneously meet multiple requirements such as high-efficiency production, high stability, and ease of maintenance.

[0032] In some embodiments, the upper part of the first housing 2 extends inward to form a first folded edge 202, and the upper part of the second housing 3 extends inward to form a second folded edge 302 that connects with the first folded edge 202. The first folded edge 202 and the second folded edge 302 form a mounting position for the cover plate 4. The ingenious connection between the first folded edge 202 and the second folded edge 302 not only eliminates the height difference that may exist at the splice seam of the housing, but also significantly improves the flatness of the mounting surface of the cover plate 4. Experimental data shows that this design allows the flatness error of the mounting surface of the cover plate 4 to be strictly controlled within the range of ≤0.05mm, providing users with a more refined and seamless visual experience.

[0033] Furthermore, these two folded edges also serve as the load-bearing support structure for the cover plate 4. They can withstand uniformly distributed loads of up to ≥200 N / m², a performance far exceeding that of ordinary designs, ensuring the stability and safety of the cover plate 4 during long-term use. More importantly, because the folded edge structure provides sufficient support, the number of fasteners 5 is significantly reduced, decreasing by 40% compared to traditional designs. This improvement not only lowers manufacturing costs but also simplifies the assembly process and improves production efficiency.

[0034] Meanwhile, the first folded edge 202 is connected to the cover plate 4 by fasteners 5, and the second folded edge 302 is also connected to the cover plate 4 by fasteners 5. The cover plate 4 has a stepped hole 401 that engages with the fasteners 5, ensuring that the top surface of the fasteners 5 is flush with the top surface of the cover plate 4 after locking. In the dryer's assembly details, the connection between the first folded edge 202, the second folded edge 302, and the cover plate 4 uses fasteners 5, such as countersunk screws. To ensure a neat appearance after fastener 5 installation, stepped holes 401 are specifically provided on the cover plate 4. This stepped hole 401 design allows the top surface of the fastener 5 to remain flush with the top surface of the cover plate 4 after locking, thus avoiding potential safety hazards or aesthetic defects caused by protruding fasteners 5. Furthermore, the lower diameter of the stepped hole 401 forms an interference fit with the threaded hole on the folded edge, further enhancing the stability and reliability of the connection.

[0035] The countersunk screw's fit with the stepped hole 401 not only achieves a seamless appearance but also meets the restrictions on sharp parts in EN60335 to 2 to 11 safety standards, thus improving product safety. Furthermore, the interference fit between the stepped hole 401 and the threaded hole (interference controlled between 0.05 and 0.1 mm) effectively suppresses bolt loosening during long-term use. Rigorous vibration testing (GB / T 2423.10) shows that the preload decay rate under this design is less than 3% / 100h, representing a stability improvement of more than 5 times compared to ordinary through-hole structures. This significant improvement not only extends product lifespan but also reduces the failure rate that may result from bolt loosening.

[0036] Furthermore, the distance between the top surface of the first flange 202 and the top surface of the first housing 2 is the same as the thickness of the cover plate 4, and the distance between the top surface of the second flange 302 and the top surface of the second housing 3 is the same as the thickness of the cover plate 4. This design ensures that when the cover plate 4 is installed onto these two flanges, it is perfectly flush with the top surface of the housing, without any height difference. Specifically, the vertical distance between the top surface of the first flange 202 and the top surface of the first housing 2 is controlled within, for example, a range of 3.0 ± 0.1 mm, and the same applies to the distance between the second flange 302 and the top surface of its housing. This precise height matching not only improves the neatness of the product's appearance but also solves the problem of water accumulation caused by height differences in traditional processes. The height-matching design ensures that the cover plate 4 is completely flush with the top surface of the housing after installation, thereby eliminating the water accumulation area that may be formed due to height differences in traditional processes. Experimental data shows that this design improves the drainage efficiency at the joint by 90%, significantly reducing the risk of corrosion or damage caused by water accumulation. Meanwhile, the tight fit between the cover plate 4 and the folded edge effectively prevents lateral displacement of the cover plate 4 through geometric limiting. Experiments have shown that this design achieves a displacement resistance of ≥50N, meeting the requirements of the IPX4 waterproof rating and providing more reliable waterproof protection for the dryer.

[0037] Preferably, in the design of the dryer's base 1, inclined guide rails 102 are cleverly provided at both ends, and the extending direction of the guide rails 102 is consistent with the extending direction of the guide portion 101. The inclination angle of these guide rails 102 is carefully controlled between 25° and 50° to reduce the initial thrust when the dryer is moved, allowing the user to move and adjust the position of the dryer more easily. At the same time, the height of the guide rails 102 is set to 10 to 30 mm. This design not only ensures that the device has a certain clearance from the ground when placed, avoiding the corrosion of the device by condensation on the bottom surface, but also provides the user with enough space to easily move the dryer.

[0038] More importantly, the surface of the guide rail 102 is covered with a polytetrafluoroethylene (PTFE) coating, the thickness of which is precisely controlled between 0.1 and 0.3 mm. The PTFE coating is renowned for its extremely low coefficient of friction and excellent corrosion resistance, significantly reducing friction between the guide rail 102 and the ground, making the dryer move more smoothly. Experimental data shows that compared to the uncoated metal guide rail 102, the coefficient of friction of the PTFE-coated guide rail 102 is reduced by 80%, reaching the range of 0.04 to 0.08. Furthermore, the coating has undergone a rigorous 48-hour salt spray test (GB / T 10125), proving its excellent corrosion resistance.

[0039] It is worth mentioning that the guide parts 101 are symmetrically arranged on both sides of the base 1. This symmetrical layout not only ensures the stability of the dryer during movement or positioning, but also allows the shell to maintain a uniform distribution of force, thereby reducing the risk of jamming caused by uneven assembly. The length of the guide parts 101 is carefully controlled between 1 / 8 and 1 / 5 of the length of the base 1. This design aims to balance positioning accuracy and material cost. Specifically, when the length of the guide parts 101 exceeds 1 / 5 of the length of the base 1, although the positioning accuracy may be improved, the gain effect will gradually slow down, and the material cost will increase significantly. Conversely, if the length of the guide parts 101 is less than 1 / 8 of the length of the base 1, although material cost can be saved, it may cause warping at the end of the shell, affecting the overall stability and service life of the dryer.

[0040] Overall, the symmetrical layout of the guide section 101 not only improves the stability and uniform force distribution of the dryer, but also significantly reduces the risk of jamming caused by uneven assembly. By precisely controlling the length of the guide section 101 to be between 1 / 8 and 1 / 5 of the length of the base 1, this solution successfully balances positioning accuracy and material cost. Experimental data shows that when the length of the guide section 101 is within this range, the warpage of the housing is reduced from 0.3mm to 0.05mm, significantly improving the overall stability and service life of the dryer. At the same time, this design also ensures that the dryer maintains high precision during movement or positioning, thereby improving the user's operating experience and satisfaction.

[0041] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0044] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A clothes dryer, characterized in that, include: The base (1), the first housing (2), the second housing (3), and the cover plate (4) are provided. The first housing (2) and the second housing (3) are spliced ​​on the base (1) by a guide structure. The cover plate (4) is installed on the top of the first housing (2) and the second housing (3). The guide structure includes a guide part (101) and a plug-in part (201). The guide part (101) protrudes from the base (1). The plug-in part (201) protrudes from the splicing end face of the first housing (2) relative to the second housing (3). The plug-in part (201) is provided with a dovetail groove (2011) that is interference fit with the guide part (101). The second housing (3) is provided with a plug-in groove (301) that is locked to the plug-in part (201).

2. The clothes dryer according to claim 1, characterized in that, The cross-section of the plug-in portion (201) is trapezoidal.

3. The clothes dryer according to claim 1, characterized in that, The upper part of the first housing (2) extends inward to form a first folded edge (202), and the upper part of the second housing (3) extends inward to form a second folded edge (302) that connects with the first folded edge (202). The first folded edge (202) and the second folded edge (302) form a mounting position for the cover plate (4) to be installed.

4. The clothes dryer according to claim 3, characterized in that, The first folded edge (202) is connected to the cover plate (4) by fasteners (5), and the second folded edge (302) is connected to the cover plate (4) by fasteners (5).

5. The clothes dryer according to claim 4, characterized in that, The cover plate (4) has a stepped hole (401) that is connected to the fastener (5) so that the top surface of the fastener (5) is flush with the top surface of the cover plate (4) after the fastener (5) is locked.

6. The clothes dryer according to claim 3, characterized in that, The distance between the top surface of the first folded edge (202) and the top surface of the first housing (2) is the same as the thickness of the cover plate (4), and the distance between the top surface of the second folded edge (302) and the top surface of the second housing (3) is the same as the thickness of the cover plate (4).

7. The clothes dryer according to any one of claims 1 to 6, characterized in that, The base (1) has inclined guide rails (102) at both ends, and the extension direction of the guide rails (102) is consistent with the extension direction of the guide part (101).

8. The clothes dryer according to claim 7, characterized in that, The guide rail (102) has an inclination angle of 25° to 50° and a height of 10 to 30 mm.

9. The clothes dryer according to claim 7, characterized in that, The guide rail (102) has a polytetrafluoroethylene coating on its surface, with a coating thickness of 0.1 to 0.3 mm.

10. The clothes dryer according to any one of claims 1 to 6, characterized in that, The guide portion (101) is symmetrically arranged on both sides of the base (1), and the length of the guide portion (101) is 1 / 8 to 1 / 5 of the length of the base (1).

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