Heater structure and dish washing machine

Abstract

The utility model relates to a heater structure and a dish-washing machine and belongs to the field of household appliances. A heater structure comprises an inner container provided with a containing cavity; the swing arm assembly is arranged on the inner container and located in the containing cavity, and the swing arm assembly can rotate relative to the inner container; the heating assembly is arranged on the inner container and located in the containing cavity; the protective cover assembly is arranged on the swing arm assembly and located on the side, close to the heating assembly, of the swing arm assembly; when the swing arm assembly rotates relative to the inner container, at least part of the rotation angle of the swing arm assembly is opposite to the heating assembly, and when the swing arm assembly is opposite to the heating assembly, the protective cover assembly covers the projection area, facing the swing arm assembly, of the heating assembly. The utility model discloses a heater structure used for a dish washing machine. The protection cover assembly covers the projection area of the heating assembly on the swing arm assembly, the aging process of the swing arm assembly is greatly delayed, deformation and damage are effectively prevented, and the efficient spray washing function is maintained.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a heater structure and a dishwasher. Background Technology

[0002] In existing technology, the heating structure is installed on the inner tub of the dishwasher. During the drying process, the heat generated by the heating structure is naturally diffused throughout the entire inner tub to dry the dishes. However, the dishwasher inner tub contains many plastic parts. The large amount of heat emitted by the heating structure under continuous high-temperature operation will damage these plastic parts over time, seriously affecting the overall lifespan and stability of the dishwasher. Utility Model Content

[0003] Therefore, it is necessary to provide a heater structure and a dishwasher to address the problem of dishwashers lacking heat insulation for internal plastic parts.

[0004] A heater structure includes: an inner liner having a receiving cavity; a swing arm assembly disposed on the inner liner and located within the receiving cavity, the swing arm assembly being rotatable relative to the inner liner; a heating assembly disposed on the inner liner and located within the receiving cavity; and a protective cover assembly disposed on the swing arm assembly and / or the heating assembly, located on the side adjacent to the swing arm assembly and the heating assembly; when the swing arm assembly rotates relative to the inner liner, at least a portion of the swing arm assembly has a rotation angle relative to the heating assembly, and when the swing arm assembly and the heating assembly are relative to each other, the protective cover assembly at least partially covers the projection area of ​​the heating assembly toward the swing arm assembly.

[0005] The above discloses a heater structure for a dishwasher. The receiving cavity within the inner tub provides a solid foundation for the dishwasher's internal structure, effectively preventing dust, debris, and other impurities from entering, creating a clean space, and preventing these impurities from contacting the swing arm assembly and heating assembly. This avoids damage to the components due to friction and blockage, significantly extending the lifespan of the dishwasher's components and reducing maintenance frequency and costs. The protective cover assembly covers the projection area of ​​the heating assembly onto the swing arm assembly. Because the swing arm assembly's outer shell is made of plastic, the protective cover assembly has excellent heat insulation properties, effectively preventing most of the heat generated by the heating assembly from being directly transferred to the plastic shell of the swing arm assembly. Even when the heating assembly operates at continuously high temperatures, the temperature in contact with the plastic shell is controlled within a safe range, greatly slowing down the aging process of the plastic shell, effectively preventing deformation and damage, ensuring stable operation of the swing arm assembly, and maintaining efficient washing functionality.

[0006] In one embodiment, there are multiple protective cover assemblies, which are spaced apart. By using multiple protective cover assemblies, the ability to block heat from the heating component is greatly improved. Each protective cover uses its own special heat-insulating material to form a heat insulation barrier between the heating component and the swing arm assembly, preventing a large amount of heat from being directly transferred to the swing arm assembly, controlling the temperature of the swing arm assembly's plastic shell within a safe range, delaying the aging of the plastic shell, and preventing deformation.

[0007] In one embodiment, the protective cover assembly extends from the end of the swing arm assembly away from the rotation axis toward the rotation axis. By extending multiple protective cover assemblies from the end of the swing arm assembly away from the rotation axis toward the rotation axis, the entire projected area of ​​the heating element on the end face of the swing arm assembly can be fully covered. The protective cover assembly effectively insulates and protects the plastic shell of the swing arm assembly from prolonged exposure to high temperatures, preventing aging or damage and extending the service life of the swing arm assembly. Simultaneously, the extended arrangement of multiple protective cover assemblies completely covers the projected area, ensuring that the plastic shell is effectively protected when the swing arm assembly operates in all positions, preventing aging, brittleness, fading, or even deformation due to high temperatures, maintaining stable operation of the swing arm assembly, and ensuring precise and efficient spray washing. During the spray washing process, the swing arm assembly can accurately spray high-pressure water onto all parts of the tableware without obstruction, ensuring thorough cleaning and greatly improving the dishwasher's cleaning effect, providing users with a better and more reliable user experience.

[0008] In one embodiment, the heating assembly includes a fixing component, a heating shell, and a heating element. The fixing component is disposed on the inner liner and located within the receiving cavity. The heating shell is disposed on the fixing component. One end of the heating element is disposed on the fixing component, and the other end of the heating element passes through the inner liner. The heating shell covers the heating element. By covering the heating element with the heating shell, and both having the same shape, the heating element can be completely enclosed during operation, preventing external foreign objects such as dust, water stains, and food residue from directly contacting the heating element. If foreign objects adhere to the surface of the heating element, it may not only affect heating efficiency and cause energy loss, but may also shorten the lifespan of the heater due to localized overheating or corrosion. The design of the heating shell effectively blocks external contaminants, ensuring long-term stable operation of the heating element and reducing maintenance requirements. Simultaneously, since the heating element operates at a high temperature, direct contact by the user can easily cause burns. The heating shell, as a physical barrier, can prevent direct contact between the user and the high-temperature heating element, reducing operational risks. Especially in home or commercial environments where the equipment may be frequently operated, the presence of the heating shell significantly improves product safety, conforms to ergonomic design principles, and prevents accidents caused by misoperation. The heating shell is securely mounted to the inner liner via a fixing component, providing not only protection but also enhancing the overall structural strength of the heating element. One end of the heating element is fixed to the fixing component, while the other end passes through the inner liner, ensuring that electrical energy is converted into heat and efficiently transferred to the target area. Furthermore, the fixing component prevents the heating element from being too long and colliding with the inner liner or heating shell during a drop, thus preventing damage.

[0009] In one embodiment, the fixing assembly includes a first fixing member and a second fixing member. The first fixing member is disposed on the inner liner, the heating shell is disposed on the first fixing member, and the second fixing member is disposed on the heating shell. One end of the heating element is disposed on the second fixing member. This layered fixing method optimizes the installation structure of the heating assembly, improving overall stability, safety, and ease of maintenance. The first fixing member is directly fixed to the inner liner, providing a stable support foundation for the heating shell, while the second fixing member is disposed on the heating shell, further securing the heating element, forming a layered fixing structure. This design avoids damage to the heating element from collision with the inner liner or heating shell during a drop due to its excessive length and lack of fixation. It also avoids the loosening or misalignment that can occur with a single fixing point, ensuring the heating element maintains accurate positioning even under high-temperature operating conditions and reducing the risk of structural deformation caused by vibration or thermal expansion and contraction. Furthermore, the split fixing design makes the installation and disassembly of the heating assembly more flexible. If the heating element needs replacement or maintenance, the second fixing member can be removed independently without affecting the structure of the first fixing member and the heating shell, simplifying the maintenance process, reducing downtime, and lowering long-term operating costs.

[0010] In one embodiment, the heating housing includes a heating side shell and a heating top shell. The heating side shell has lugs that are mounted on the fixing assembly. The heating top shell is mounted on the heating side shell, and the heating side shell and the heating top shell surround the heating element. By cooperating with the heating side shell and the heating top shell, a complete surrounding structure is formed from above and both sides, completely enclosing the heating element. This three-dimensional protective design effectively prevents water stains, food residue, dust, and other foreign objects from falling onto the surface of the heating element, avoiding problems such as localized overheating, short circuits, or corrosion caused by the accumulation of foreign objects, significantly improving the operational reliability and service life of the heating assembly. Simultaneously, the heating top shell is specifically designed to provide focused protection for the upper area most likely to be touched by the user. Combined with the side heating side shells, it creates a comprehensive anti-scalding barrier, minimizing the risk of accidental contact with high-temperature components and ensuring operational safety. The heating side shell has a dedicated lug structure that forms a stable connection with the fixing assembly, ensuring that the housing will not shift or loosen during equipment operation. This design ensures continuous protection and avoids protection failure due to housing displacement. At the same time, this structural design facilitates disassembly and assembly during routine maintenance, ensuring both protective effectiveness and ease of use.

[0011] In one embodiment, the protective cover assembly includes a protective bottom cover and multiple cover fasteners. These fasteners are disposed on the protective bottom cover and on the swing arm assembly and / or the heating assembly. When the swing arm assembly and the heating assembly are positioned opposite each other, the protective bottom cover covers the projection area of ​​the heating assembly towards the swing arm assembly. By precisely installing multiple cover fasteners on the swing arm assembly, the protective bottom cover can completely cover the projection area of ​​the heating assembly on the swing arm assembly. This targeted protective design effectively blocks the impact of high-temperature heat radiation on the plastic components of the swing arm assembly, avoiding material aging and deformation caused by long-term high-temperature action, and significantly extending the service life of critical components. The distributed fixing method using multiple cover fasteners provides uniform support for the protective bottom cover. This design effectively avoids stress concentration problems that may occur with single-point fixing, ensuring that the protective cover remains firmly connected during equipment operation vibration or temperature changes, preventing protective failure due to loosening, and improving the overall structural reliability. Multiple cover fasteners and the protective bottom cover are integrally molded, eliminating the connection gaps of traditional split structures and making the protective cover assembly a complete mechanical whole, which can effectively avoid the problem of protection failure caused by loose connections.

[0012] In one embodiment, the swing arm assembly includes a swing arm body and swing arm spray nozzles. The swing arm body is disposed on the inner tub, and multiple swing arm spray nozzles are distributed on both sides of the end face of the swing arm body away from the heating element. The protective cover assembly is disposed on the end face of the swing arm body near the heating element. By securing the swing arm body to the inner tub, the multiple swing arm spray nozzles distributed on both sides of the end face away from the heating element greatly expand the spraying range. During dishwasher operation, they can spray high-pressure water jets from different directions, covering the dishes comprehensively, powerfully washing away oil and stains, ensuring thorough cleaning, and significantly improving cleaning effect. The protective cover assembly is installed on the end face of the swing arm body near the heating element, effectively blocking the heat generated by the heating element. This not only prevents the plastic parts of the swing arm body from aging and deforming due to high temperatures, but also ensures the stable operation of the swing arm body, maintains a precise spraying angle, and avoids uneven spraying caused by swing arm body malfunction. The two work together to optimize the cleaning process and extend the lifespan of the swing arm assembly, providing a strong guarantee for the efficient and stable operation of the dishwasher and bringing users a better and more durable user experience.

[0013] In one embodiment, multiple heating components are disposed on the inner tub and located within the receiving cavity. By placing multiple heating components within the inner tub's receiving cavity, a more uniform heat field is formed, resulting in a more even temperature distribution throughout the inner tub. During the drying stage, the dishes are heated more evenly, effectively preventing incomplete drying or residual water stains on some dishes due to localized overheating or undercooling, significantly improving the drying effect. Simultaneously, the multiple heating components can flexibly adjust their heating power according to different dishwasher operating modes and load conditions. When washing a large number of dishes, they can operate simultaneously and efficiently, quickly raising the water temperature and enhancing the cleaning effect; when washing fewer dishes, some components can reduce power or stop working, saving energy and being environmentally friendly. This not only optimizes the dishwasher's performance but also adapts to diverse usage scenarios, providing users with a more convenient, efficient, and energy-saving user experience.

[0014] In one embodiment, the heating assembly and the swing arm assembly are disposed on the bottom wall of the inner tub. By placing the heating assembly and swing arm assembly on the bottom wall of the inner tub, this design significantly improves the integration of the dishwasher's interior. Compared to a traditional distributed layout, the concentration of components on the bottom wall of the inner tub results in more efficient space utilization and a more compact internal structure. With all components integrated on the bottom wall of the inner tub, the overall layout appears exceptionally neat. This not only reduces messy wiring and pipe connections caused by dispersed components, lowering the risk of malfunctions, but also frees up more space inside the inner tub for placing tableware, increasing the dishwasher's actual loading capacity.

[0015] In one embodiment, the heating element is disposed on the side wall of the inner liner, and the swing arm assembly is disposed on the bottom wall of the inner liner. By disposing the heating element on the side wall and the swing arm assembly on the bottom wall of the inner liner, compared to the traditional layout where elements are concentrated in one area, the side and bottom walls of the inner liner provide a large and independent installation area. The spacious side wall allows for flexible arrangement of multiple heating elements. Whether arranged linearly for uniform side heating or in a staggered layout tailored to the shape of the inner liner, this can be easily achieved, ensuring that heat is evenly radiated from the side wall to all parts of the inner liner during the drying stage, thus comprehensively improving the drying effect.

[0016] In one embodiment, the heating assembly includes a heating shell and a heating element, both of which are S-shaped. By designing both the heating shell and the heating element in an S-shape, this unique shape significantly increases the contact area with the inner wall of the liner, enabling more efficient heat transfer to all parts of the liner and improving heating uniformity. During drying, the S-shaped heating assembly ensures that the tableware is heated from all angles, preventing localized overheating or undercooling.

[0017] In one embodiment, the heating assembly includes a heating shell and a heating element, both of which are L-shaped. By designing both the heating shell and the heating element in the heating assembly as L-shaped, they fit snugly against the right-angled areas of the inner liner, allowing for a close fit during installation and significantly improving space utilization.

[0018] In one embodiment, the system further includes zone spray washing components and a water softener, both of which are mounted on the inner tank and located within the receiving cavity. The heating component is spaced apart from the zone spray washing components and the water softener to form an S-shape or an L-shape. By placing multiple zone spray washing components and water softener covers within the inner tank's receiving cavity, a rational functional zoning is achieved. The zone spray washing components can target specific areas of tableware for focused rinsing. For areas with concentrated plates or densely packed tableware, the water flow intensity and coverage can be increased to further enhance the cleaning effect, effectively complementing the comprehensive spray washing of the swing arm component. Simultaneously, the spaced distribution with the heating component prevents damage to the multiple zone spray washing components and the water softener from the heating component.

[0019] A second aspect of this application discloses a dishwasher, which includes: the heater structure described above; and a dishwasher housing, wherein the heater structure is disposed on the dishwasher housing.

[0020] The second aspect disclosed above discloses a dishwasher in which the aforementioned heater structure is mounted on the dishwasher housing. The protective cover assembly ensures that the plastic parts of the dishwasher's swing arm assembly are protected from damage by the heating element, thereby extending the dishwasher's service life and enhancing its market competitiveness. Attached Figure Description

[0021] Figure 1 This is a first perspective view of the heater structure;

[0022] Figure 2 This is a second perspective view of the heater structure;

[0023] Figure 3 This is a third perspective view of the heater structure;

[0024] Figure 4 for Figure 3 A magnified view of a portion of region A;

[0025] Figure 5 This is the first perspective view of the swing arm assembly;

[0026] Figure 6 This is a second perspective view of the swing arm assembly;

[0027] Figure 7 This is a first perspective view of the heating assembly;

[0028] Figure 8 This is a second perspective view of the heating assembly;

[0029] Figure 9 This is a three-dimensional view of the heating housing;

[0030] Figure 10 This is a third perspective view of the swing arm assembly;

[0031] Figure 11 for Figure 10 A magnified view of a portion of region B;

[0032] Figure 12 This is the fourth perspective view of the heater structure.

[0033] The correspondence between the reference numerals and the component names is as follows:

[0034] 1 inner liner, 101 accommodating cavities;

[0035] 2. Swing arm assembly; 21. Swing arm body; 22. Swing arm spray cleaning component;

[0036] 3 heating assembly, 31 fixing assembly, 311 first fixing member, 312 second fixing member, 32 heating housing, 321 heating side shell, 322 heating top shell, 33 heating element;

[0037] 4. Protective cover assembly; 41. Protective bottom cover; 42. Cover body fastener;

[0038] 5-zone spray cleaning assembly. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] The heater structure and dishwasher of some embodiments of the present invention are described below with reference to the accompanying drawings.

[0042] Example 1

[0043] like Figures 1 to 12 As shown, this embodiment discloses a heater structure, including: an inner liner 1, the inner liner 1 having a receiving cavity 101; a swing arm assembly 2, the swing arm assembly 2 being disposed on the inner liner 1 and located in the receiving cavity 101, the swing arm assembly 2 being rotatable relative to the inner liner 1; a heating assembly 3, the heating assembly 3 being disposed on the inner liner 1 and located in the receiving cavity 101; and a protective cover assembly 4, the protective cover assembly 4 being disposed on the swing arm assembly 2 and / or the heating assembly 3, and located on the side adjacent to the swing arm assembly 2 and the heating assembly 3; when the swing arm assembly 2 rotates relative to the inner liner 1, the swing arm assembly 2 has at least a partial rotation angle relative to the heating assembly 3, and when the swing arm assembly 2 and the heating assembly 3 are relative to each other, the protective cover assembly 4 at least partially covers the projection area of ​​the heating assembly 3 toward the swing arm assembly 2.

[0044] This application discloses a heater structure for a dishwasher. The receiving cavity 101 provided in the inner tank 1 provides a solid foundation for the internal structure of the dishwasher, effectively preventing dust, debris, and other impurities from the external environment from entering, creating a clean space, preventing these impurities from contacting the swing arm assembly 2 and the heating assembly 3, avoiding damage to the components due to friction, blockage, etc., significantly extending the service life of each component of the dishwasher, and reducing maintenance frequency and costs. The protective cover assembly 4 covers the projection area of ​​the heating assembly 3 onto the swing arm assembly 2. Since the outer shell of the swing arm assembly 2 is made of plastic, the protective cover assembly 4 has excellent heat insulation performance, effectively preventing most of the heat generated by the heating assembly 3 from being directly transferred to the plastic shell of the swing arm assembly 2. Even if the heating assembly 3 operates at a continuous high temperature, the temperature of the plastic shell is controlled within a safe range, greatly slowing down the aging process of the plastic shell, effectively preventing deformation and damage, ensuring stable operation of the swing arm assembly 2, and maintaining efficient spray washing function.

[0045] like Figure 1 , Figure 2 , Figure 6 and Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of protective cover assemblies 4 is multiple, and the multiple protective cover assemblies 4 are arranged at intervals. By setting multiple protective cover assemblies 4, the heat insulation capability of the heating component 3 is greatly improved. Each protective cover uses its own special heat insulation material to form a heat insulation barrier between the heating component 3 and the swing arm assembly 2, preventing a large amount of heat from being directly transferred to the swing arm assembly 2, controlling the temperature of the plastic shell of the swing arm assembly 2 within a safe range, delaying the aging of the plastic shell, and preventing deformation.

[0046] like Figure 6 and Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the protective cover assembly 4 extends from the end of the swing arm assembly 2 away from the rotation axis toward the rotation axis. By extending multiple protective cover assemblies 4 from the end of the swing arm assembly 2 away from the rotation axis toward the rotation axis, the entire projection area of ​​the heating component 3 on the end face of the swing arm assembly 2 can be fully covered. The protective cover assembly 4 can effectively insulate and protect the plastic shell of the swing arm assembly 2 from heat, preventing the plastic shell from being exposed to a long-term high-temperature environment and causing aging or damage, thus extending the service life of the swing arm assembly 2. At the same time, the multiple protective cover assemblies 4 extend and completely cover the projection area, ensuring that the plastic shell is effectively protected when the swing arm assembly 2 is operating in various positions, preventing aging, brittleness, fading, or even deformation due to high temperature, maintaining the stable operation of the swing arm assembly 2, and ensuring the precise and efficient spray washing function. During the spray washing process, the swing arm assembly 2 can accurately spray high-pressure water jets onto all parts of the tableware without obstruction, ensuring that the tableware is thoroughly cleaned, greatly improving the cleaning effect of the dishwasher, and bringing users a better and more reliable user experience.

[0047] like Figure 1 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further defines the heating assembly 3 as follows: the heating assembly 3 includes a fixing assembly 31, a heating shell 32, and a heating element 33. The fixing assembly 31 is disposed on the inner liner 1 and located in the receiving cavity 101. The heating shell 32 is disposed on the fixing assembly 31. One end of the heating element 33 is disposed on the fixing assembly 31, and the other end of the heating element 33 passes through the inner liner 1. The heating shell 32 covers the heating element 33. By covering the heating element 33 with the heating shell 32, and the two having the same shape, the heating element 33 can be completely enclosed during operation, preventing external foreign objects such as dust, water stains, and food residue from directly contacting the heating element 33. If foreign objects adhere to the surface of the heating element 33, it may not only affect the heating efficiency and cause energy loss, but may also shorten the service life of the heater due to local overheating or corrosion. The design of the heating shell 32 effectively blocks external contaminants, ensuring the long-term stable operation of the heating element 33 and reducing maintenance requirements. At the same time, since the heating element 33 has a high temperature during operation, if the user accidentally touches it directly, it is very easy to cause burns. The heating shell 32 acts as a physical barrier, preventing direct contact between the user and the high-temperature heating element 33, thus reducing operational risks. Especially in home or commercial environments where the equipment may be frequently operated, the heating shell 32 significantly enhances product safety, conforms to ergonomic design principles, and prevents accidents caused by misoperation. The heating shell 32 is securely mounted on the inner liner 1 via the fixing component 31, providing not only protection but also strengthening the overall structural integrity of the heating component 3. One end of the heating element 33 is fixed to the fixing component 31, while the other end passes through the inner liner 1, ensuring that electrical energy is converted into heat and efficiently transferred to the target area. Furthermore, the fixing component 31 prevents the heating element 33 from being too long and colliding with the inner liner 1 or heating shell 32 during a fall, thus preventing damage.

[0048] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the fixing component 31 includes a first fixing member 311 and a second fixing member 312. The first fixing member 311 is disposed on the inner liner 1, the heating shell 32 is disposed on the first fixing member 311, the second fixing member 312 is disposed on the heating shell 32, and one end of the heating element 33 is disposed on the second fixing member 312. By utilizing a layered fixing method, the installation structure of the heating component 3 is optimized, improving overall stability, safety, and ease of maintenance. The first fixing member 311 is directly fixed to the inner liner 1, providing a stable support foundation for the heating shell 32, while the second fixing member 312 is disposed on the heating shell 32, further fixing the heating element 33, forming a layered fixing structure. This design avoids the situation where the heating element 33 is too long and collides with the inner liner 1 or the heating shell 32 during a drop due to the heating element 33 not being fixed. At the same time, it also avoids the loosening or displacement problems that may be caused by a single fixing point, ensuring that the heating element 33 can still maintain accurate positioning in a high-temperature working environment and reducing the risk of structural deformation caused by vibration or thermal expansion and contraction. Furthermore, the split-type fixing design makes the installation and disassembly of the heating component 3 more flexible. If the heating element 33 needs to be replaced or maintained, the second fixing component 312 can be removed separately without affecting the structure of the first fixing component 311 and the heating housing 32, simplifying the maintenance process, reducing downtime, and lowering long-term operating costs.

[0049] like Figure 7 and Figure 9 As shown, in addition to the features of the above embodiments, this embodiment further defines the heating housing 32 as follows: the heating side shell 321 includes a heating side shell 321 and a heating top shell 322. The heating side shell 321 is provided with lugs, which are disposed on the fixing component 31. The heating top shell 322 is disposed on the heating side shell 321, and the heating side shell 321 and the heating top shell 322 surround the heating element 33. By cooperating with the heating side shell 321 and the heating top shell 322, a complete surrounding structure is formed from the top and both sides, completely enclosing the heating element 33. This three-dimensional protective design can effectively prevent water stains, food residues, dust and other foreign objects from falling onto the surface of the heating element 33, avoiding problems such as local overheating, short circuits or corrosion caused by the accumulation of foreign objects, and significantly improving the working reliability and service life of the heating component 3. At the same time, the heating top shell 322 is specifically designed to provide key protection for the upper area that the user is most likely to touch. Together with the side heating side shell 321, it forms an all-round anti-scalding barrier, minimizing the risk of the user accidentally touching the high-temperature component and ensuring operational safety. The heating side shell 321 is equipped with a dedicated lug structure, forming a stable connection with the fixing component 31 to ensure that the shell will not shift or loosen during equipment operation. This design ensures continuous protection while avoiding protection failure due to shell displacement. At the same time, this structural design facilitates disassembly and assembly during routine maintenance, ensuring both protective effectiveness and ease of use.

[0050] like Figure 10 and Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further defines: the protective cover assembly 4 includes a protective bottom cover 41 and cover fixing members 42. The number of cover fixing members 42 is multiple, and multiple cover fixing members 42 are disposed on the protective bottom cover 41 and on the swing arm assembly 2 and / or the heating assembly 3. When the swing arm assembly 2 and the heating assembly 3 are arranged opposite each other, the protective bottom cover 41 covers the projection area of ​​the heating assembly 3 towards the swing arm assembly 2. By precisely installing multiple cover fixing members 42 on the swing arm assembly 2, the protective bottom cover 41 can completely cover the projection area formed by the heating assembly 3 on the swing arm assembly. This targeted protective design can effectively block the influence of high-temperature heat radiation on the plastic parts of the swing arm assembly 2, avoiding problems such as material aging and deformation caused by long-term high-temperature action, and significantly extending the service life of key components. The distributed fixing method of multiple cover fixing members 42 ensures that the protective bottom cover 41 obtains uniform support force. This design effectively avoids stress concentration problems that may occur with single-point fixing, ensuring that the protective cover remains firmly connected even when the equipment vibrates or changes temperature, preventing protective failure due to loosening, and improving the overall structural reliability. Multiple cover fasteners 42 and the protective bottom cover 41 are integrally molded, eliminating the connection gaps of traditional split structures, making the protective cover assembly 4 a complete mechanical whole, effectively avoiding protective failure due to loose connections.

[0051] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines: the swing arm assembly 2 includes a swing arm body 21 and swing arm spray members 22. The swing arm body 21 is disposed on the inner tub 1, and there are multiple swing arm spray members 22, which are distributed on both sides of the end face of the swing arm body 21 away from the heating component 3. The protective cover assembly 4 is disposed on the end face of the swing arm body 21 near the heating component 3. By firmly fixing the swing arm body 21 to the inner tub 1, the multiple swing arm spray members 22 distributed on both sides of its end face away from the heating component 3 greatly expand the spraying range. When the dishwasher is operating, they can spray high-pressure water jets from different directions, covering the tableware in all directions, powerfully washing away oil and stains, ensuring thorough cleaning, and significantly improving the cleaning effect. The protective cover assembly 4 is installed on the end face of the swing arm body 21 near the heating component 3, effectively blocking the heat generated by the heating component. This not only prevents the plastic parts of the swing arm body 21 from aging and deforming due to high temperatures, ensuring the stable operation of the swing arm body 21 and maintaining a precise spray angle, but also avoids uneven spraying caused by malfunctions of the swing arm body 21. Together, these two aspects optimize the cleaning process and extend the service life of the swing arm assembly 2, providing strong support for the efficient and stable operation of the dishwasher and bringing users a better and more durable user experience.

[0052] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of heating components 3 is multiple, and the multiple heating components 3 are disposed on the inner tub 1 and located in the receiving cavity 101. By disposing of multiple heating components 3 in the receiving cavity 101 of the inner tub 1, a more uniform heat field can be formed, making the temperature of the inner tub 1 more even. During the drying stage, the tableware is heated more evenly, which can effectively avoid the problem of incomplete drying or water stains remaining on some tableware due to local overheating or undercooling, and greatly improve the drying effect. At the same time, the multiple heating components 3 can flexibly adjust the heating power according to different working modes and load conditions of the dishwasher. When washing a large number of tableware, they can operate simultaneously and efficiently, quickly raising the water temperature and enhancing the cleaning effect; when there are fewer tableware, some components can reduce power or stop working, saving energy and being environmentally friendly. This not only optimizes the performance of the dishwasher, but also adapts to diverse usage scenarios, bringing users a more convenient, efficient and energy-saving user experience.

[0053] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the heating assembly 3 and the swing arm assembly 2 are disposed on the bottom wall of the inner tub 1. By disposing of the heating assembly 3 and the swing arm assembly 2 on the bottom wall of the inner tub 1, this design significantly improves the integration of the dishwasher's interior. Compared to the traditional distributed layout, the components are concentrated on the bottom wall of the inner tub 1, making more efficient use of space and resulting in a more compact internal structure. With all components integrated on the bottom wall of the inner tub 1, the overall layout appears exceptionally neat, not only reducing messy wiring and pipe connections caused by component dispersion, thus lowering potential malfunctions, but also freeing up more space inside the inner tub 1 for placing tableware, thereby increasing the dishwasher's actual loading capacity.

[0054] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the heating assembly 3 is disposed on the side wall of the inner liner 1, and the swing arm assembly 2 is disposed on the bottom wall of the inner liner 1. By disposing the heating assembly 3 on the side wall of the inner liner 1 and the swing arm assembly 2 on the bottom wall of the inner liner 1, compared to the traditional layout where they are concentrated in one area, the side wall and bottom wall of the inner liner 1 provide a wide and independent installation area. The open space of the side wall of the inner liner 1 allows for the flexible arrangement of multiple heating assemblies 3, thanks to the large area of ​​the side wall. Whether it is a linear distribution to achieve uniform side heating or a personalized staggered layout according to the shape of the inner liner 1, both can be easily achieved, ensuring that during the drying stage, heat can be evenly radiated from the side wall to all parts of the inner liner, comprehensively improving the drying effect.

[0055] like Figure 1 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that the heating assembly 3 includes a heating shell 32 and a heating element 33, both of which are S-shaped. By designing both the heating shell 32 and the heating element 33 in the heating assembly 3 as S-shaped, this unique shape greatly increases the contact area with the side wall of the inner pot 1, enabling more efficient heat transfer to all parts of the inner pot 1 and improving heating uniformity. During drying, the S-shaped heating assembly 3 allows the tableware to be heated from all directions, avoiding local overheating or undercooling.

[0056] like Figure 12 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the heating assembly 3 includes a heating shell 32 and a heating element 33, both of which are L-shaped. By designing both the heating shell 32 and the heating element 33 in the heating assembly 3 as L-shaped, they fit into a portion of the right-angled area of ​​the inner liner 1, allowing for a tight fit during installation and significantly improving space utilization.

[0057] like Figure 1 and Figure 12 As shown, in addition to the features of the above embodiments, this embodiment further specifies that it also includes a zone spray washing assembly 5 and a water softener cover. The number of zone spray washing assemblies 5 is multiple, and all multiple zone spray washing assemblies 5 and water softener covers are disposed on the inner tank 1 and located in the receiving cavity 101. The heating assembly 3 is spaced apart from the zone spray washing assemblies 5 and water softener covers to form an S-shape or L-shape. By placing multiple zone spray washing assemblies 5 and water softener covers in the receiving cavity 101 of the inner tank 1, a reasonable functional zoning is achieved. The zone spray washing assemblies 5 can focus on rinsing tableware in specific areas. For areas with concentrated plates or densely placed tableware, the water flow intensity and coverage can be increased to further improve the cleaning effect, effectively complementing the comprehensive spray washing of the swing arm assembly. Simultaneously, the spaced distribution with the heating assembly 3 can prevent the heating assembly 3 from damaging the multiple zone spray washing assemblies 5 and the water softener.

[0058] Example 2

[0059] like Figures 1 to 12 As shown, this embodiment discloses a dishwasher, including: the heater structure described above; and a dishwasher cabinet, wherein the heater structure is disposed on the dishwasher cabinet.

[0060] The second aspect of this application discloses a dishwasher in which the aforementioned heater structure is mounted on the dishwasher housing. The protective cover assembly 4 ensures that the plastic parts of the dishwasher's swing arm assembly 2 are protected from the heating assembly 3, thereby extending the dishwasher's service life and enhancing its market competitiveness.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heater structure, characterized in that, The heater structure includes: Inner liner (1), wherein the inner liner (1) is provided with a receiving cavity (101); A swing arm assembly (2) is disposed on the inner liner (1) and located in the receiving cavity (101), and the swing arm assembly (2) is rotatable relative to the inner liner (1); Heating assembly (3), the heating assembly (3) is disposed on the inner liner (1) and located in the receiving cavity (101); A protective cover assembly (4) is disposed on the swing arm assembly (2) and / or the heating assembly (3) and is located on the side of the swing arm assembly (2) adjacent to the heating assembly (3); When the swing arm assembly (2) rotates relative to the inner liner (1), the swing arm assembly (2) has at least a partial rotation angle that is opposite to the heating assembly (3). When the swing arm assembly (2) and the heating assembly (3) are opposite to each other, the protective cover assembly (4) at least partially covers the projection area of ​​the heating assembly (3) toward the swing arm assembly (2).

2. The heater structure according to claim 1, characterized in that, The number of the protective cover assembly (4) is multiple, and the multiple protective cover assemblies (4) are arranged at intervals; And / or the protective cover assembly (4) is provided to extend from one end away from the rotation axis of the swing arm assembly (2) toward the rotation axis.

3. The heater structure according to claim 1, characterized in that, The heating assembly (3) includes a fixing assembly (31), a heating shell (32), and a heating element (33). The fixing assembly (31) is disposed on the inner liner (1) and located in the receiving cavity (101). The heating shell (32) is disposed on the fixing assembly (31). One end of the heating element (33) is disposed on the fixing assembly (31), and the other end of the heating element (33) passes through the inner liner (1). The heating shell (32) covers the heating element (33).

4. The heater structure according to claim 3, characterized in that, The fixing component (31) includes a first fixing member (311) and a second fixing member (312). The first fixing member (311) is disposed on the inner liner (1). The heating shell (32) is disposed on the first fixing member (311). The second fixing member (312) is disposed on the heating shell (32). One end of the heating member (33) is disposed on the second fixing member (312).

5. The heater structure according to claim 3, characterized in that, The heating housing (32) includes a heating side shell (321) and a heating top shell (322). The heating side shell (321) is provided with a lug, which is disposed on the fixing assembly (31). The heating top shell (322) is disposed on the heating side shell (321). The heating side shell (321) and the heating top shell (322) surround the heating element (33).

6. The heater structure according to claim 1, characterized in that, The protective cover assembly (4) includes a protective bottom cover (41) and a cover fixing member (42). There are multiple cover fixing members (42), which are disposed on the protective bottom cover (41) and the multiple cover fixing members (42) are disposed on the swing arm assembly (2) and / or the heating assembly (3). When the swing arm assembly (2) and the heating assembly (3) are disposed opposite to each other, the protective bottom cover (41) covers the projection area of ​​the heating assembly (3) toward the swing arm assembly (2).

7. The heater structure according to claim 1, characterized in that, The heating assembly (3) and the swing arm assembly (2) are disposed on the bottom wall of the inner liner (1); Alternatively, the heating component (3) may be disposed on the side wall of the inner liner (1), and the swing arm component (2) may be disposed on the bottom wall of the inner liner (1).

8. The heater structure according to claim 1, characterized in that, The heating assembly (3) includes a heating shell (32) and a heating element (33), both of which are S-shaped; Alternatively, the heating assembly (3) may include a heating housing (32) and a heating element (33), both of which are L-shaped.

9. The heater structure according to claim 8, characterized in that, It also includes a zone spray washing assembly (5) and a water softener, both of which are disposed on the inner tank (1) and located in the receiving cavity (101). The heating assembly (3) is disposed at intervals with the zone spray washing assembly (5) and the water softener to form the S-shape or the L-shape.

10. A dishwasher, characterized in that, The dishwasher includes: The heater structure according to any one of claims 1 to 9; The dishwasher housing has the heater structure mounted on it.

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