Heating inner cavity and garment steamer

Abstract

The utility model belongs to the technical field of electric appliances, and particularly relates to a heating inner cavity and a garment steamer. Comprising an integrated heating tube, the integrated heating tube is in a continuous and double-layer laminated shape, and the single-layer structure of the integrated heating tube is a straight tube with at least two sections extending in the length direction. Through reasonable space structure arrangement, the total length size of the single tube is increased as much as possible in a small space range, so that the maximum power of the whole heating tube is improved, and damage and potential safety hazards caused by overlarge current and power due to unstable control voltage are prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical appliances, and in particular relates to a heating cavity and a garment steamer. Background Technology

[0002] Garment steamers, also known as hanging irons or standing irons, use internal heating elements to heat water in the heating chamber. The resulting steam continuously contacts clothes and fabrics, achieving the purpose of ironing. To accommodate different countries, most garment steamers on the market today feature a dual-heating-tube design, allowing for automatic wide voltage compatibility. One heating element operates at 100-120V, while the other operates at 220-240V. The mainboard identifies the input voltage and switches between heating elements via hardware and software to achieve dual voltage compatibility. While this structure is simple, it requires two independent heating elements, resulting in two pairs of input / output ports. This leads to more complex internal connections, a larger device size, and higher costs. Furthermore, if one heating element fails, the other becomes unusable, resulting in waste. Utility Model Content

[0003] The purpose of this utility model is to provide a heating unit and its matching heating cavity, which adopts a single tube double layer structure, can meet the usage requirements, and optimize the space ratio, making it easy to simplify the size of the equipment.

[0004] Based on this, the present invention provides a heating cavity, including a shell, the shell having an upper cavity and a lower cavity, the upper cavity and the lower cavity being connected, a heating unit being provided inside the shell between the upper cavity and the lower cavity, the heating unit including an integral heating tube, the integral heating tube being in a continuous and double-layered stacked state, and the single-layer structure of the integral heating tube being constructed as having at least two straight tubes extending in the length direction, the upper layer of the heating unit being used to heat the upper cavity, and the lower layer of the heating unit being used to heat the lower cavity.

[0005] As described above, in a heating cavity, the integrated heating element includes a first straight tube, a second straight tube, a third straight tube, a fourth straight tube, a first connecting section, and a second connecting section.

[0006] The first connecting segment is connected to the end of the first straight pipe and the beginning of the second straight pipe. The second connecting segment is connected to the end of the third straight pipe and the beginning of the fourth straight pipe. The end of the second straight pipe is connected to the beginning of the third straight pipe. The second straight pipe and the third straight pipe are stacked in parallel. The first straight pipe and the fourth straight pipe are stacked in parallel.

[0007] In the heating cavity described above, the first straight tube and the second straight tube are arranged in parallel, and the first connecting section is an arc-shaped connecting end, so that the single-layer structure of the integrated heating tube is constructed as a U-shaped structure.

[0008] In the heating cavity described above, the first end of the first straight tube and the end of the fourth straight tube are aligned and both are provided with a mating end.

[0009] As described above, in a heating cavity, the housing includes an upper housing and a lower housing, the upper housing is connected to the upper side of the lower housing, and the connection end face of the upper housing and the lower housing forms a first interlayer for accommodating the upper layer of the heating unit.

[0010] In the heating cavity described above, the upper or lower shell is directly formed on the outside of the single-layer structure of the integrated heating tube.

[0011] As described above, in a heating cavity, the lower housing is directly formed outside the lower structure of the integrated heating tube, and its upper end face forms a receiving groove that partially covers the upper structure of the integrated heating tube. The lower end of the upper housing has a groove that matches the receiving groove. The groove and the receiving groove together form the first interlayer. The upper cavity is located at the upper end of the upper housing and close to the first interlayer. The lower cavity is located on the lower side of the lower housing.

[0012] As described above, in a heating cavity, the receiving groove matches the single-layer structure contour of the integrated heating tube, and it has a first port and a connecting port. The first port is for the docking end of the integrated heating tube to extend out, and the connecting port is located at the end of the second straight tube, which is bent towards the beginning of the third straight tube for connection.

[0013] This utility model also provides a garment steamer, including a body, wherein the body employs the aforementioned heating cavity.

[0014] Implementing the embodiments of this utility model has the following beneficial effects:

[0015] 1. This utility model provides a heating unit that, through a reasonable spatial structure, maximizes the total length of a single heating tube within a small space by integrating an integral heating tube, thereby increasing the overall maximum power of the heating tube and preventing damage and safety hazards caused by excessive current and power due to unstable control voltage.

[0016] 2. This utility model provides a heating inner cavity structure, which is applied to ironing products. By using the above-mentioned heating unit, it is possible to arrange double-layer heating tubes and use single-layer heating inner cavity for heating in a small space. It has high heating efficiency and is especially suitable for use in miniaturized garment steamer products. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the heating unit of this utility model;

[0019] Figure 2 Explosion of the heating cavity of this utility model Figure 1 ;

[0020] Figure 3 Explosion of the heating cavity of this utility model Figure 2 ;

[0021] Figure 4 This is a sectional view of the lower shell. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 As shown, this embodiment of the utility model provides a heating unit, including an integrated heating tube 1. The integrated heating tube 1 is continuously and double-layered, and the single-layer structure of the integrated heating tube 1 consists of at least two straight tubes extending in the length direction. This solution, through a reasonable spatial structure, maximizes the total length of the single tube within a small space, thereby increasing the overall maximum power of the heating tube and preventing damage and safety hazards caused by excessive current and power due to unstable control voltage. Compared with traditional bent coil or mosquito coil-type bent tube structures, this solution adopts a double-layered single-tube integrated arrangement structure. Its single-layer structure is simpler, allowing for a larger tube diameter, avoiding the inconvenience of multiple bends due to excessive diameter, and increasing the power it can withstand, facilitating compatible use.

[0024] It should be noted that voltage specifications vary from 120V to 240V in different countries. Generally speaking, the heating element needs to be compatible with 120V, 220V, and 240V. In ironing machines and garment steamers, the power requirement for the heating element is generally limited to 1000W to avoid safety hazards caused by excessive power. There are also existing single heating elements with a 120V specification. They can be used directly when the input voltage is 120V. However, if used directly with higher voltages, the heating element will burn out, damaging the garment steamer. Generally, the input voltage is identified by software, and chopping or dropping methods are used to process the 220~240V input voltage to achieve dual voltage compatibility. However, the disadvantage is that when the voltage is 220~240V, the software processing will cause voltage instability and a large instantaneous current. The internal resistance of a 120V / 1000W heating element is 14.4 ohms. When the voltage input is 220~240V, the maximum current of the heating element can reach about 16A, and the maximum power can reach 3600W, which affects the lifespan of the product components and poses a safety risk.

[0025] This modified design allows for voltage ranges from 220V to 240V, with 230V being the preferred option. The double-layer structure maximizes the heating element length, enabling it to handle up to 3700W of power. This design addresses the fact that higher heating element power necessitates a longer length, achieving an internal resistance of approximately 14.4 ohms. With a 220V to 240V input, the power is reduced to 1000W via software, resulting in a safe current of less than 8.5A. With a 120V input, the software does not limit the power, providing approximately 1000W with a current of less than 8.5A, also considered safe.

[0026] This solution proposes to improve the arrangement of a single heating element through a reasonable double-layer structure, allowing it to have a longer length in a small space, thereby increasing the power it can withstand. When used at high voltage, even if voltage instability occurs and power increases, it can effectively prevent damage or safety accidents caused by excessive instantaneous voltage.

[0027] Of course, in this embodiment of the invention, the single-layer structure has at least two straight tubes, which eliminates the need for multiple bends and improves the overall service life of the product. Furthermore, the straight tubes arranged along the length are designed for use in small-volume garment steamers, fitting snugly against their heating chamber. Alternatively, the two straight tubes can be arranged within a single layer, which is preferable. In this design, the two straight tubes are arranged in parallel, and the structure of the other layer is essentially the same as this layer, forming a double-layer stacked structure.

[0028] Specifically, the integrated heating element 1 includes a first straight tube 11, a second straight tube 12, a third straight tube 13, a fourth straight tube 14, a first connecting section 15, and a second connecting section 16. The first connecting section 15 connects the end of the first straight tube 11 to the beginning of the second straight tube 12. The second connecting section 16 connects the end of the third straight tube 13 to the beginning of the fourth straight tube 14. The end of the second straight tube 12 is connected to the beginning of the third straight tube 13. The second straight tube 12 and the third straight tube 13 are stacked in parallel, and the first straight tube 11 and the fourth straight tube 14 are stacked in parallel. This double-layered and simple double-tube folding structure can be understood as a single heating element being folded through the first connecting section 15 to form the first straight tube 11 and the second straight tube 12, then folded a second time through the rear section of the second straight tube 12 to form the third straight tube, and finally folded through the second connecting section 16 to form the fourth straight tube, thus creating the aforementioned smaller three-dimensional arrangement design.

[0029] Preferably, in this embodiment of the invention, the first straight tube 11 and the second straight tube 12 are arranged in parallel, and the first connecting section 15 is an arc-shaped connecting end, so that the single-layer structure of the integrated heating tube 1 is a U-shaped structure. The above design is based on the shape design of the double U-shaped heating tube, which can achieve the maximum heating tube length in a small volume.

[0030] In addition, for ease of use, in this embodiment of the invention, the first end of the first straight tube 11 and the end of the fourth straight tube 14 are aligned, and both are provided with a docking end 19. The docking end 19 of this solution is an electrical connection end, which facilitates power connection and docking with the control module. Moreover, the double-layer heating tube of this solution only needs to be connected to one set of docking ends for use, which greatly simplifies the internal wiring and connection compared with the structure of a double heating tube.

[0031] Based on this, the present invention provides a heating unit that, through a reasonable spatial structure, maximizes the total length of a single heating tube within a small space, thereby increasing the overall maximum power of the heating tube and preventing damage and safety hazards caused by excessive current and power due to unstable control voltage.

[0032] like Figures 2 to 4As shown, as an application, this utility model also provides a heating cavity, including a housing 2. The housing 2 has an upper inner cavity 201 and a lower inner cavity 202, which are connected. A heating unit as described above is provided inside the housing 2, located between the upper and lower inner cavities 201. The upper layer of the heating unit is used to heat the upper inner cavity 201, and the lower layer is used to heat the lower inner cavity 202. When applied to ironing products, this heating unit allows for the arrangement of double-layer heating tubes and individual heating of a single-layer heating cavity within a smaller space, resulting in high heating efficiency, making it particularly suitable for miniaturized garment steamers.

[0033] When in use, water is added and flows into the upper inner cavity 201, then through the upper inner cavity 201 into the lower inner cavity 202. During this process, the water is heated to form steam, which is discharged from the corresponding steam port on the lower side of the lower inner cavity 202. This solution uses a double-layer heating element structure. The upper structure is designed to heat the upper inner cavity 201, and similarly, the lower structure is designed to heat the lower inner cavity 202. This can improve the heating efficiency of both inner cavities, thereby improving the overall heating efficiency. Moreover, the double-layer structure of the heating element makes full use of space.

[0034] Specifically, in this embodiment of the present invention, the housing 2 includes an upper housing 21 and a lower housing 22. The upper housing 21 is connected to the upper side of the lower housing 22, and the connecting end faces of the upper housing 21 and the lower housing 22 form a first interlayer 203 for accommodating the upper layer of the heating unit. The use of a split housing structure is mainly for ease of installation and assembly. However, since this solution uses an integrated double-layer heating tube, which is located inside the housing to improve heating efficiency, its installation method differs from ordinary assembly. Preferably, the upper housing 21 or the lower housing 22 is directly formed on the outside of the single-layer structure of the integrated heating tube 1. This can be understood as directly forming half of the housing on the single layer of the heating tube, with the other layer exposed on the outside of this half-housing. Then, assembling the other half of the housing completes the process of enclosing the heating element inside, forming an assembly.

[0035] In this embodiment of the present invention, preferably, the lower housing 22 is directly formed on the outside of the lower structure of the integrated heating tube 1, and its upper end face forms a receiving groove that partially covers the upper structure of the integrated heating tube 1. The lower end of the upper housing 21 has a groove that matches the receiving groove. The groove and the receiving groove together form the first interlayer 203. The upper inner cavity 201 is located at the upper end of the upper housing 21 and close to the first interlayer 203. The lower inner cavity 202 is located on the lower side of the lower housing 22.

[0036] For ease of installation, the receiving groove matches the single-layer structure outline of the integrated heating tube 1, and it has a first port 221 and a connecting port 222. The first port 221 allows the docking end 19 of the integrated heating tube 1 to extend out, and the connecting port 222 allows the end of the second straight tube 12 to be bent towards the beginning of the third straight tube 13 for connection.

[0037] Of course, this solution also has an upper cover 211 on the upper inner cavity 201, with a water inlet on the upper cover, which makes it convenient for users to add water directly from the outside into the upper inner cavity 201. At the same time, it ensures that after water is added, the water flows into the upper inner cavity 201 at a designated position, so that it must flow through a designated path to the lower inner cavity 202, thereby ensuring its heating effect.

[0038] This utility model also provides a garment steamer, including a body with the aforementioned heating cavity, and similarly, the integrated heating element is installed within the heating cavity. Its reasonable design allows for further reduction in the size of the garment steamer without limitations, and also meets the usage requirements of different voltages in various countries.

[0039] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A heating cavity, characterized in that, The device includes a housing (2), which has an upper inner cavity (201) and a lower inner cavity (202). The upper inner cavity (201) and the lower inner cavity (202) are connected. A heating unit is provided in the housing (2) between the upper inner cavity (201) and the lower inner cavity (202). The heating unit includes an integrated heating tube (1). The integrated heating tube (1) is in a continuous and double-layered stacked state. The single-layer structure of the integrated heating tube (1) is constructed to have at least two straight tubes extending in the length direction. The upper layer of the heating unit is used to heat the upper inner cavity (201), and the lower layer of the heating unit is used to heat the lower inner cavity (202).

2. The heating cavity according to claim 1, characterized in that, The integrated heating element (1) includes a first straight tube (11), a second straight tube (12), a third straight tube (13), a fourth straight tube (14), a first connecting section (15), and a second connecting section (16). The first connecting segment (15) is connected to the end of the first straight pipe (11) and the beginning of the second straight pipe (12). The second connecting segment (16) is connected to the end of the third straight pipe (13) and the beginning of the fourth straight pipe (14). The end of the second straight pipe (12) is connected to the beginning of the third straight pipe (13). The second straight pipe (12) and the third straight pipe (13) are stacked in parallel. The first straight pipe (11) and the fourth straight pipe (14) are stacked in parallel.

3. A heating cavity according to claim 2, characterized in that, The first straight tube (11) and the second straight tube (12) are arranged in parallel, and the first connecting section (15) is an arc-shaped connecting end, so that the single-layer structure of the integrated heating tube (1) is a U-shaped structure.

4. A heating cavity according to claim 2, characterized in that, The first end of the first straight pipe (11) and the end of the fourth straight pipe (14) are aligned, and both are provided with a connecting end (19).

5. A heating cavity according to any one of claims 2 to 4, characterized in that, The housing (2) includes an upper housing (21) and a lower housing (22). The upper housing (21) is connected to the upper side of the lower housing (22), and the connection end face of the upper housing (21) and the lower housing (22) forms a first interlayer (203) for accommodating the upper layer of the heating unit.

6. A heating cavity according to claim 5, characterized in that, The upper shell (21) or lower shell (22) is directly formed on the outside of the single-layer structure of the integrated heating tube (1).

7. A heating cavity according to claim 6, characterized in that, The lower housing (22) is directly formed on the outside of the lower structure of the integrated heating tube (1), and its upper end face forms a receiving groove that partially covers the upper structure of the integrated heating tube (1). The lower end of the upper housing (21) has a groove that matches the receiving groove. The groove and the receiving groove together form the first interlayer (203). The upper inner cavity (201) is located at the upper end of the upper housing (21) and close to the first interlayer (203). The lower inner cavity (202) is located on the lower side of the lower housing (22).

8. A heating cavity according to claim 7, characterized in that, The receiving groove matches the single-layer structure outline of the integrated heating tube (1) and has a first port (221) and a connecting port (222). The first port (221) allows the docking end (19) of the integrated heating tube (1) to extend out, and the connecting port (222) allows the end of the second straight tube (12) to bend towards the beginning of the third straight tube (13) for connection.

9. A garment steamer, characterized in that, Includes a body, wherein the body employs a heating cavity as described in any one of claims 1 to 8.

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