A roller-type electric heating device

Abstract

The utility model relates to the technical field of roller type heating, disclose a kind of roller type electric heating device, including support, roller and electric heating sheet, roller is rotationally connected on support along its circumferential direction, roller is provided with arc side wall, electric heating sheet is covered on arc side wall, the outside of electric heating sheet is provided with the heat conduction sleeve that can heat conduction, roller, electric heating sheet and heat conduction sleeve three synchronous rotation, support is provided with the power supply unit for the power supply of electric heating sheet;When using, electric heating sheet is energized heating by power supply unit, electric heating sheet passes own heat to the outside of heat conduction sleeve, places heat conduction sleeve on the outside article to be ironed on contact.The utility model structure is simple, and production cost is low;Ironing clothes by the outside surface of roller, compared with large area ironing board, the volume is more small and exquisite, convenient to carry, store;And when using, roller and clothes are rolling friction, can reduce the friction resistance of clothes when ironing, more labor-saving operation.

Description

Technical Field

[0001] This utility model relates to the field of roller heating technology, and more specifically, to a roller electric heating device. Background Technology

[0002] An electric iron is a tool for smoothing clothes and fabrics. It consists of a body and an ironing board. When using it, you hold the body and press the hot ironing board onto the clothes or fabric and move it horizontally to achieve the purpose of ironing the clothes or fabrics.

[0003] Traditional electric irons often feature a large ironing plate to increase the contact area between the plate and the fabric. However, this larger plate size can lead to several problems: 1. The iron is bulky, making it inconvenient to carry while traveling; 2. The larger contact area increases friction between the iron and fabric, making it more difficult to move; 3. The larger plate increases the iron's weight, making it harder to move by hand and resulting in a poor user experience; 4. The ironing surface is typically flat, requiring clothing or fabric to be laid flat before ironing, making it inconvenient for undone garments or worn clothing. Clothing must be removed and laid flat on a table for ironing, which is not convenient for impromptu ironing while traveling. Furthermore, existing irons with integrated ironing plates have complex structures and higher production costs. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides a roller-type electric heating device, comprising a support, a roller, and a heating element. The roller is rotatably connected to the support along its circumferential direction. The roller has an arc-shaped sidewall, and the heating element covers the arc-shaped sidewall. A heat-conducting sleeve is provided on the outer side of the heating element. The roller, the heating element, and the heat-conducting sleeve rotate synchronously. A power supply unit for supplying power to the heating element is provided on the support. In use, the heating element is energized and heated through the power supply unit. The heating element transfers its own heat to the outer surface of the heat-conducting sleeve, thus heating the heating element. The heating sleeve is placed on the external item to be ironed. External force pushes the bracket and maintains the contact between the heating sleeve and the item. Through the friction between the heating sleeve and the item, the heating sleeve and the roller rotate synchronously, and the item is ironed through the outer surface of the heating sleeve. This utility model has a simple structure and low production cost. Ironing clothes, fur, fabrics, etc., through the outer surface of the roller, the roller is more compact than a large ironing board, making it easy to carry and store. Moreover, during use, the roller and the clothes experience rolling friction, which reduces the frictional resistance during ironing, resulting in more even heating and less effort during operation.

[0005] Optionally, the power supply unit includes a conductive ring and a carbon brush. The conductive ring is disposed on the roller and rotates synchronously with the roller. The conductive ring is electrically connected to the heating element. One end of the carbon brush contacts the conductive ring to conduct electricity, and an elastic element is disposed between the other end of the carbon brush and the bracket. The heating element is flexible. In use, the elastic force of the elastic element drives one end of the carbon brush to always abut against the conductive ring to conduct electricity.

[0006] Optionally, one end of the carbon brush abuts against the annular outer wall of the conductive ring, the elastic element is a compression spring, one end of the elastic element abuts against the carbon brush, the other end of the elastic element abuts against the bracket, and the conductive ring is made of metal.

[0007] Optionally, the roller is provided with a temperature control element for controlling the temperature of the heating element. The temperature control element is electrically connected between the conductive ring and the heating element. The temperature control element is a temperature sensor or a temperature control switch.

[0008] Optionally, the temperature control element is placed inside the heating element, and the roller is provided with a mounting groove for mounting the temperature control element.

[0009] Optionally, the bracket is provided with an adjustment switch for adjusting the temperature of the heating element, and the adjustment switch is electrically connected to the temperature control element.

[0010] Optionally, the heating element is provided with a first electrode lead and a second electrode lead, and the conductive ring includes a first conductive ring and a second conductive ring. The first conductive ring and the second conductive ring are respectively disposed at both ends of the roller. The first conductive ring has a first conductive side surface disposed on the side near the second conductive ring, and the second conductive ring has a second conductive side surface disposed on the side near the first conductive ring. The first electrode lead is electrically connected to the first conductive side surface, and the second electrode lead is electrically connected to the second conductive side surface.

[0011] Optionally, the carbon brush includes a first carbon brush and a second carbon brush, and the elastic element includes a first elastic element and a second elastic element. One end of the first carbon brush is in contact with the first conductive ring and conducts electricity. The first elastic element is disposed between the first carbon brush and the bracket. One end of the second carbon brush is in contact with the second conductive ring and conducts electricity. The second elastic element is disposed between the second conductive ring and the bracket. Both the first carbon brush and the second carbon brush are electrically connected to an external power source.

[0012] Optionally, both ends of the roller are provided with mounting cylinders, and bearings are provided between the mounting cylinders and the bracket.

[0013] Optionally, the roller is provided with a limiting protrusion, and the heat-conducting sleeve is provided with a limiting groove that engages with the limiting protrusion; in use, the limiting protrusion engages with the limiting groove so that the roller and the heat-conducting sleeve rotate synchronously; the bracket includes a U-shaped frame and a handle, the roller is rotatably connected to the U-shaped frame, the handle is located on the side of the U-shaped frame away from the roller, the U-shaped frame is provided with reinforcing ribs, and the reinforcing ribs and the handle are located on the same side of the U-shaped frame.

[0014] Compared to existing technologies, the roller-type electric heating device of this utility model has a simple structure and low production cost. Ironing clothes is done through the outer surface of the roller, which is more compact than a large ironing board, making it easier to carry and store. Furthermore, the rolling friction between the roller and the clothes reduces frictional resistance during ironing, making operation more effortless. The conductive rings ensure that the heating element can generate heat in both stationary and rotating states, resulting in a reasonable structural design. The support frame is equipped with an adjustment switch for adjusting the temperature of the heating element, making adjustment convenient and meeting various needs. It meets the needs of different heating temperatures and has a wide range of applications. Both ends of the roller are equipped with mounting cylinders, and bearings are installed between the mounting cylinders and the bracket, allowing the roller to rotate smoothly in the circumferential direction relative to the bracket. This reduces the frictional resistance between the roller and the clothing during ironing, making it easier to push the bracket while ironing. The structural strength of the U-shaped frame is improved by reinforcing ribs, making the U-shaped frame less prone to bending and deformation, and extending its service life. The roller can easily roll and conform to the curved parts of the object being ironed, making it suitable for ironing both flat and curved surfaces, thus expanding its application range. Attached Figure Description

[0015] Figure 1 This is a perspective view of the roller-type electric heating device of this utility model;

[0016] Figure 2 This is a schematic diagram of the limiting protrusion of the roller-type electric heating device of this utility model;

[0017] Figure 3 This is a schematic diagram of the temperature control element of the roller-type electric heating device of this utility model;

[0018] Figure 4 This is a cross-sectional view of the roller-type electric heating device of this utility model;

[0019] Figure 5 for Figure 4 Enlarged view of section A in the middle;

[0020] Figure 6 for Figure 4 Enlarged view of section B;

[0021] Figure 7This is a schematic diagram of the structure of the heating element in the roller-type electric heating device of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the roller in the roller-type electric heating device of this utility model;

[0023] The component names corresponding to the various reference numerals in the figure are as follows: 1 is the bracket, 101 is the adjustment switch, 2 is the roller, 201 is the arc-shaped sidewall, 2011 is the first receiving groove, 2012 is the second receiving groove, 2013 is the third receiving groove, 202 is the mounting groove, 203 is the mounting cylinder, 204 is the limiting protrusion, 3 is the heating element, 301 is the first electrode lead, 302 is the second electrode lead, 4 is the heat-conducting sleeve, 401 is the limiting groove, 5 is the conductive ring, 51 is the first conductive ring, and 511 is... 52 is the first conductive side, 52 is the second conductive ring, 521 is the second conductive side, 6 is the carbon brush, 61 is the first carbon brush, 62 is the second carbon brush, 7 is the elastic element, 701 is the conductive plate, 71 is the first elastic element, 72 is the second elastic element, 8 is the temperature control element, 9 is the bearing, 11 is the U-shaped frame, 111 is the reinforcing rib, 112 is the base plate, 113 is the side plate, 12 is the handle, 13 is the first wire, 14 is the second wire, 15 is the additional function module, 16 is the control board, and 17 is the conductive wire. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0027] See Figures 1-8This utility model provides a roller-type electric heating device, including a bracket 1, a roller 2, and a heating element 3. The roller 2 is rotatably connected to the bracket 1 along its circumferential direction. The roller 2 is provided with an arc-shaped sidewall 201, and the heating element 3 is covered on the arc-shaped sidewall 201. A heat-conducting sleeve 4 is provided on the outer side of the heating element 3. The roller 2, heating element 3, and heat-conducting sleeve 4 rotate synchronously. The bracket 1 is provided with a power supply unit for supplying power to the heating element 3. In use, the heating element 3 is energized and heated by the power supply unit. The heating element 3 transfers its own heat to the outer surface of the heat-conducting sleeve 4. The heat-conducting sleeve 4 is placed in contact with the external item to be ironed. An external force pushes the bracket 1 and maintains the contact state between the heat-conducting sleeve 4 and the item to be ironed. Through the friction between the heat-conducting sleeve 4 and the item to be ironed, the heat-conducting sleeve 4 is driven to rotate synchronously with the roller 2. The heated outer surface of the heat-conducting sleeve 4... Ironing items to be ironed; This utility model has a simple structure and low production cost; Ironing clothes is done through the outer side of the roller, which is more compact than a large ironing board, making it easier to carry and store; During use, the roller and the clothes are rolled and rubbed, which reduces the frictional resistance between them during ironing, making operation more effortless; The ironing method of the roller makes the contact between the heated ironing part and the ironed object approximately line contact, and the roller can easily roll and fit along the curved part of the ironed object (not flattened) during ironing. At this time, the roller can automatically match the curvature required for ironing, and is suitable for ironing both flat and curved surfaces, thus having a wider range of applications; In addition, as a functional expansion, the following supplements are made: The length and diameter of the roller 2 can be adjusted according to usage needs and scenarios, for example, the length of the roller 2 can be increased and its diameter can be enlarged to facilitate ironing of large-area products (such as carpets, tablecloths, etc.).

[0028] Specifically, the bracket 1 and roller 2 can be made of high-temperature resistant plastic materials to reduce the overall weight of the electric heating device, making it more convenient to use and carry; the items to be ironed are clothes or fabrics; the heating element 3 is a flexible and thin heating element, specifically carbon fiber heating element, metal foil flexible heating element, or graphene / nano carbon composite heating element, etc.

[0029] See Figure 1 , Figure 2 and Figure 4The power supply unit includes a conductive ring 5 and a carbon brush 6. The conductive ring 5 is mounted on the roller 2 and rotates synchronously with the roller 2. The conductive ring 5 is electrically connected to the heating element 3. One end of the carbon brush 6 contacts the conductive ring 5 for conductivity, and an elastic element 7 is provided between the other end of the carbon brush 6 and the support 1. In this embodiment, the heating element 3 is flexible, but a rigid heating element 3 can also be used. The rigid heating element 3 can be a thin sheet-like electrothermal coating layer or other rigid sheet-like structures with electrothermal properties. In use, the elastic force of the elastic element 7 drives the carbon brush 6 to rotate. One end is always in contact with the conductive ring 5 for conduction; through the conductive ring 5, the heating element 3 can be energized and heated in both stopped and rotating states, and the structure design is reasonable; one end of the carbon brush 6 abuts against the outer annular wall of the conductive ring 5, the elastic element 7 is a compression spring, one end of the elastic element 7 abuts against the carbon brush 6, and the other end of the elastic element 7 abuts against the bracket 1, the conductive ring 5 is made of metal, specifically copper, iron, aluminum, etc., in this embodiment the conductive ring 5 is made of copper, which has good conductivity.

[0030] See Figure 1 , Figure 3 and Figure 7 The roller 2 is equipped with a temperature control element 8 for controlling the temperature of the heating element 3. The temperature control element 8 is electrically connected between the conductive ring 5 and the heating element 3. The temperature control element 8 is a temperature sensor or a temperature control switch. The temperature control element 8 can detect the heating temperature of the heating element 3. When the temperature of the heating element 3 reaches the preset value, the temperature control element 8 controls the heating element 3 to turn off the power. When the temperature of the heating element 3 is lower than the preset value, the temperature control element 8 controls the heating element 3 to turn on the power, so that the heating element 3 can achieve a constant temperature (within a certain temperature or a certain temperature range) heating function, avoiding the overheating and damaging the clothes, and ensuring safe and reliable use. The temperature control element 8 is placed inside the heating element 3 so that the temperature control element 8 can detect the heating temperature of the heating element 3. The roller 2 is provided with a mounting groove 202 for installing the temperature control element 8. The temperature control element 8 is installed securely and is embedded in the roller 2 to ensure the flatness of the outer side (ironing surface) of the roller and to prevent the temperature control element 8 from protruding from the roller and interfering with the ironing process.

[0031] See Figure 1 and Figure 4The bracket 1 is equipped with an adjustment switch 101 for adjusting the temperature of the heating element 3. The adjustment switch 101 is electrically connected to the temperature control element 8. The bracket is also equipped with a control board 16, which is electrically connected to the heating element 3, the adjustment switch 101, and the temperature control element 8. Multiple temperature levels can be set through the program on the control board 16. The heating temperature of the heating element 3 can be adjusted to the desired temperature level by adjusting the adjustment switch 101. For example, if there are two temperature levels, namely the first temperature level and the second temperature level, and the adjustment switch 101 is an adjustment knob or button, after adjusting the adjustment switch 101 to the first temperature level, when the temperature control element 8 detects that the temperature of the heating element 3 has reached the first temperature level... When the temperature reaches the first temperature setting, the temperature control element 8 controls the heating element 3 to turn off the power. When the temperature of the heating element 3 is lower than the temperature of the first temperature setting, the temperature control element 8 controls the heating element 3 to turn on the power, so that the heating temperature of the heating element 3 is controlled near the temperature of the first temperature setting. After adjusting the adjustment switch 101 to the second temperature setting, when the temperature control element 8 detects that the temperature of the heating element 3 has reached the temperature of the second temperature setting, the temperature control element 8 controls the heating element 3 to turn off the power. When the temperature of the heating element 3 is lower than the temperature of the second temperature setting, the temperature control element 8 controls the heating element 3 to turn on the power, so that the heating temperature of the heating element 3 is controlled near the temperature of the second temperature setting. It is easy to adjust, meets the usage requirements of different heating temperatures, and has a wide range of applications.

[0032] Based on the above temperature adjustment function, the functions of this electric heating device can be further expanded as follows: 1. It can select different temperatures for ironing clothes of different materials; 2. It can select different temperatures for ironing according to different degrees of wrinkles; 3. It can be adjusted to a low-temperature heating level for heating and massaging body parts; 4. It can assist in the hot compress of some medicines and essential oils; and other application scenarios that require pressing and heating at the same time.

[0033] See Figures 1-4The heating element 3 is provided with a first electrode lead 301 and a second electrode lead 302, both of which are wires. The conductive ring 5 includes a first conductive ring 51 and a second conductive ring 52, which are respectively disposed at both ends of the roller 2. The first conductive ring 51 has a first conductive side surface 511 on the side closer to the second conductive ring 52, and the second conductive ring 52 has a second conductive side surface 521 on the side closer to the first conductive ring 51. The first electrode lead 301 and the first conductive ring 52 are connected to the first conductive ring 52. Side 511 is electrically connected by conductive welding or other means, and the second electrode lead 302 is electrically connected to the second conductive side 521 by conductive welding or other means, so that the two electrodes of the heating element 3 can be electrically connected to the first conductive ring 51 and the second conductive ring 52 respectively. Then, an external power supply can energize the first conductive ring 51 and the second conductive ring 52, thereby realizing the function of energizing and heating the heating element 3. The temperature control element 8 is electrically connected to the first conductive ring 51 through the first electrode lead 301, and the temperature control element 8 is electrically connected to the heating element 3 through the conductive wire 17.

[0034] See Figure 3 , Figure 7 and Figure 8 The roller 2 is provided with a first receiving groove 2011 and a second receiving groove 2012. The part where the conductive wire 17 is electrically connected to the heating element 3 will form a first electrical connection part (usually a weld point left by welding or a bolt when bolted). The first electrical connection part can be placed in the first receiving groove 2011 to ensure the flatness of the heating element 3 at the position of the first electrical connection part. Similarly, the part where the second electrode lead 302 is electrically connected to the heating element 3 will form a second electrical connection part (usually a weld point left by welding or a bolt when bolted). The second electrical connection part can be placed in the second receiving groove 2012 to ensure the flatness of the heating element 3 at the position of the second electrical connection part. In addition, the roller 2 is also provided with a third receiving groove 2013 for placing the second electrode lead 302 to prevent the second electrode lead 302 from affecting the flatness of the heating element 3.

[0035] See Figure 1 , Figure 4 , Figure 5 and Figure 6The carbon brush 6 includes a first carbon brush 61 and a second carbon brush 62, and the elastic element 7 includes a first elastic element 71 and a second elastic element 72. One end of the first carbon brush 61 is in contact with the first conductive ring 51 and conducts electricity. The first elastic element 71 is disposed between the first carbon brush 61 and the bracket 1. One end of the second carbon brush 62 is in contact with the second conductive ring 52 and conducts electricity. The second elastic element 72 is disposed between the second conductive ring 52 and the bracket 1. Both the first carbon brush 61 and the second carbon brush 62 are electrically connected to an external power source. The first carbon brush 61 is electrically connected to the positive or negative terminal of the external power source through a first wire 13, and the second carbon brush 62 is electrically connected to the negative or positive terminal of the external power source through a second wire 14. The first wire 13 and the second wire 14 can be led out from the inner bottom of the bracket 1 and electrically connected to an external power source. A conductive plate 701 is connected to the end of the first elastic element 71 away from the first carbon brush 61. The conductive plate 701 is electrically connected to the first wire 13 by welding or other means. The conductive plate 701 is made of metal.

[0036] See Figure 1 , Figure 4 , Figure 5 and Figure 6 Both ends of the roller 2 are provided with mounting cylinders 203. There are bearings 9 between the mounting cylinders 203 and the bracket 1. There are two bearings 9 symmetrically arranged, which allows the roller 2 to rotate in the circumferential direction relative to the bracket 1 and rotate smoothly; thereby reducing the frictional resistance between the roller and the clothes during ironing, and making it easier to push the bracket 1 during ironing.

[0037] See Figure 1 and Figure 2The roller 2 is provided with a limiting protrusion 204, and the heat-conducting sleeve 4 is provided with a limiting groove 401 that engages with the limiting protrusion 204. During use, the limiting protrusion 204 engages with the limiting groove 401, so that the roller 2 and the heat-conducting sleeve 4 rotate synchronously, allowing the heat-conducting sleeve 4 to rotate under external force, thus driving the roller 2 to rotate. The support 1 includes a U-shaped frame 11 and a handle 12, facilitating the user's ironing action by gripping the handle. The roller 2 is rotatably connected to the U-shaped frame 11, and the handle 12 is located on the side of the U-shaped frame 11 away from the roller 2. The U-shaped frame 11 is provided with reinforcing... Rib 111 and handle 12 are located on the same side of U-shaped frame 11; U-shaped frame 11 includes base plate 112 and two side plates 113 connected to both ends of base plate 112, roller 2 is rotatably connected between the two side plates 113, and rib 111 and handle 12 are both connected to the side of base plate 112 away from roller 2; since some of the heat from heating element 3 will be transferred to bracket 1 during use, although bracket 1 is made of high temperature resistant material, it may still be possible for bracket 1 to bend and deform due to prolonged exposure to high temperature. Rib 111 is used to lift U-shaped frame 1 The structural strength of the U-shaped frame 11 makes it less prone to bending and deformation, extending its service life. Furthermore, the roller-type electric heating device of this invention can be expanded with the following functions: An additional functional module 15 is provided on the side of the base plate 112 near the roller 2. This additional functional module 15 includes a water (steam) nozzle, a temperature probe, an illumination lamp, or an AI visual perception probe. The water (steam) nozzle helps soften and moisten the surface of the object being contacted, improving the ironing effect. The temperature probe detects the temperature of the heat-conducting sleeve 4, assisting in precise temperature control and improving the heat transfer temperature of the object being contacted. The illumination lamp enhances brightness and creates a pleasant atmosphere, improving aesthetics. The AI ​​visual perception probe automatically identifies the material of the object being contacted and, through internal chips and database information, provides the optimal heating temperature and rotation speed (i.e., the speed at which the support is pushed, which can be demonstrated via video through an external APP), enhancing personalized and professional heating effects.

[0038] The roller-type electric heating device of this utility model has a simple structure and low production cost. Clothes are ironed using the outer surface of the roller, which is more compact than a large ironing board, making it easier to carry and store. During use, the roller and clothing experience rolling friction, reducing frictional resistance and making operation more effortless. The conductive rings ensure that the heating element can be energized and heated in both stationary and rotating states, demonstrating a reasonable structural design. The support frame has an adjustment switch for regulating the heating element temperature, which is convenient and meets different heating temperature requirements, making it widely applicable. Both ends of the roller have mounting cylinders, and bearings are installed between the mounting cylinders and the support frame, allowing the roller to rotate smoothly in the circumferential direction relative to the support frame. This further reduces frictional resistance during ironing, making pushing the support frame easier. Reinforcing ribs enhance the structural strength of the U-shaped frame, making it less prone to bending and deformation, thus extending its service life.

[0039] In the description of this disclosure, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure.

[0040] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0042] In this disclosure, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first feature or in indirect contact with the first feature through an intermediate medium.

[0043] It should be noted that when a component is described as being "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is described as being "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0044] 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.

Claims

1. A roller-type electric heating device, characterized in that, The device includes a support (1), a roller (2), and a heating element (3). The roller (2) is rotatably connected to the support (1) along its circumferential direction. The roller (2) is provided with an arc-shaped sidewall (201). The heating element (3) is covered by the arc-shaped sidewall (201). A heat-conducting sleeve (4) is provided on the outside of the heating element (3). The roller (2), the heating element (3), and the heat-conducting sleeve (4) rotate synchronously. The support (1) is provided with a power supply unit for supplying power to the heating element (3). When in use, the heating element (3) is powered on and heated by the power supply unit. The heating element (3) transfers its own heat to the outer surface of the heat-conducting sleeve (4). The heat-conducting sleeve (4) is placed on the external item to be ironed. The external force pushes the bracket (1) and keeps the heat-conducting sleeve (4) in contact with the item to be ironed. Through the friction between the heat-conducting sleeve (4) and the item to be ironed, the heat-conducting sleeve (4) is driven to rotate synchronously with the roller (2). The item to be ironed is ironed through the outer surface of the heat-conducting sleeve (4).

2. The roller-type electric heating device according to claim 1, characterized in that, The power supply unit includes a conductive ring (5) and a carbon brush (6). The conductive ring (5) is disposed on the roller (2) and rotates synchronously with the roller (2). The conductive ring (5) is electrically connected to the heating element (3). One end of the carbon brush (6) contacts the conductive ring (5) to conduct electricity. An elastic element (7) is disposed between the other end of the carbon brush (6) and the bracket (1). The heating element (3) is flexible. In use, the elastic force of the elastic element (7) drives one end of the carbon brush (6) to always abut against the conductive ring (5) to conduct electricity.

3. The roller-type electric heating device according to claim 2, characterized in that, One end of the carbon brush (6) abuts against the annular outer wall of the conductive ring (5). The elastic element (7) is a compression spring. One end of the elastic element (7) abuts against the carbon brush (6), and the other end of the elastic element (7) abuts against the bracket (1). The conductive ring (5) is made of metal.

4. The roller-type electric heating device according to claim 2, characterized in that, The roller (2) is provided with a temperature control element (8) for controlling the temperature of the heating element (3). The temperature control element (8) is electrically connected between the conductive ring (5) and the heating element (3). The temperature control element (8) is a temperature sensor or a temperature control switch.

5. The roller-type electric heating device according to claim 4, characterized in that, The temperature control element (8) is placed inside the heating element (3), and the roller (2) is provided with a mounting groove (202) for mounting the temperature control element (8).

6. The roller-type electric heating device according to claim 4, characterized in that, The bracket (1) is provided with an adjustment switch (101) for adjusting the temperature of the heating element (3), and the adjustment switch (101) is electrically connected to the temperature control element (8).

7. The roller-type electric heating device according to claim 2, characterized in that, The heating element (3) is provided with a first electrode lead (301) and a second electrode lead (302). The conductive ring (5) includes a first conductive ring (51) and a second conductive ring (52). The first conductive ring (51) and the second conductive ring (52) are respectively disposed at both ends of the roller (2). The first conductive ring (51) has a first conductive side surface (511) on the side near the second conductive ring (52), and the second conductive ring (52) has a second conductive side surface (521) on the side near the first conductive ring (51). The first electrode lead (301) is electrically connected to the first conductive side surface (511), and the second electrode lead (302) is electrically connected to the second conductive side surface (521).

8. The roller-type electric heating device according to claim 7, characterized in that, The carbon brush (6) includes a first carbon brush (61) and a second carbon brush (62). The elastic element (7) includes a first elastic element (71) and a second elastic element (72). One end of the first carbon brush (61) is in contact with the first conductive ring (51) for conduction. The first elastic element (71) is disposed between the first carbon brush (61) and the bracket (1). One end of the second carbon brush (62) is in contact with the second conductive ring (52) for conduction. The second elastic element (72) is disposed between the second conductive ring (52) and the bracket (1). Both the first carbon brush (61) and the second carbon brush (62) are electrically connected to an external power source.

9. The roller-type electric heating device according to claim 1, characterized in that, Both ends of the roller (2) are provided with mounting cylinders (203), and a bearing (9) is provided between the mounting cylinders (203) and the bracket (1).

10. The roller-type electric heating device according to any one of claims 1-9, characterized in that, The roller (2) is provided with a limiting protrusion (204), and the heat-conducting sleeve (4) is provided with a limiting groove (401) that engages with the limiting protrusion (204). In use, the limiting protrusion (204) engages with the limiting groove (401) so that the roller (2) and the heat-conducting sleeve (4) rotate synchronously. The bracket (1) includes a U-shaped frame (11) and a handle (12). The roller (2) is rotatably connected to the U-shaped frame (11). The handle (12) is located on the side of the U-shaped frame (11) away from the roller (2). The U-shaped frame (11) is provided with a reinforcing rib (111). The reinforcing rib (111) and the handle (12) are located on the same side of the U-shaped frame (11).

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