Handheld curling iron

Abstract

The utility model relates to the technical field of curling devices, in particular to a handheld curling iron which comprises a handle arranged at the end of a curling iron assembly. The circuit board assembly is mounted in the internal cabin of the handle and comprises a key group and a screen part which penetrate through the opening of the handle; the light-transmitting piece is installed on the outer surface of the handle, the key set penetrates through the light-transmitting piece, and the light-transmitting piece is used for displaying projection of the screen piece; the key set comprises a rotating key and a heating key, the rotating key is used for controlling rotation of the curling iron assembly, and the heating key is used for controlling heating of the curling iron assembly; the handle is characterized in that holding protrusions are arranged on the two sides of the light-transmitting piece, and holding recesses are arranged between the opening plane of the handle and the holding protrusions. According to the hair curling iron, a user can hold and use the hair curling iron conveniently, through the assembling structure of the handle, the circuit board assembly and the light-transmitting piece, high-definition display of the screen is achieved, electric energy consumed by screen display is reduced, and the production cost of the hair curling iron is reduced through batch production and manufacturing of the hair curling iron.

Description

Technical Field

[0001] This utility model relates to the field of hair curling device technology, and in particular to a handheld hair curling iron. Background Technology

[0002] With the continuous development of modern hairdressing technology and the increasing pursuit of personal image, curling has become an important means for many people to create personalized hairstyles. Traditional curling tools have many shortcomings, which seriously affect the user's hairdressing experience and the hairstyle effect. Traditional curling irons usually have a series of problems such as uneven heating, inconvenient operation, and difficulty in accurately controlling the curling angle, which greatly restricts users' demand for personalized hairstyles.

[0003] The current handheld curling iron handles have the following problems: the handle's structure and shape make it inconvenient to press the rotation button, thus hindering the user's curling operation; the handle does not have a light-transmitting component for projection display on the screen, and the light-transmitting component and the handle are not detachable and cannot be manufactured separately.

[0004] For example, the utility model patent with application number 201920604122.X discloses a rotary temperature control switch for a curling iron and a curling iron, but does not disclose any structure that is convenient for users to hold.

[0005] This shows that existing technologies are not perfect in terms of the shape design of the handle of handheld curling irons and the modular component design. Utility Model Content

[0006] Therefore, this utility model provides a handheld curling iron. The handle has a grip protrusion and a grip recess for easy gripping and use. Through the assembly structure of the handle, circuit board assembly and light-transmitting component, a high-definition screen display is achieved, which reduces the power consumption of the rechargeable curling iron for screen display and enhances the power life of the curling iron. Furthermore, the light-transmitting component and the handle can be mass-produced separately, which reduces the production cost of the curling iron.

[0007] To achieve the above objectives, this utility model proposes a handheld curling iron, comprising:

[0008] Curling iron components;

[0009] A handle is provided at the end of the curling iron assembly;

[0010] A circuit board assembly, installed in the internal compartment of the handle, includes a button group and a screen component, both passing through openings in the handle;

[0011] A light-transmitting element is installed on the outer surface of the handle, the button group passes through the light-transmitting element, and the light-transmitting element is used to display the projection of the screen element;

[0012] The button group includes a rotary button and a heating button, the rotary button being used to control the rotation of the curling iron assembly;

[0013] The handle has grip protrusions on both sides of the light-transmitting element, and a grip recess between its opening plane and the grip protrusions.

[0014] Furthermore, the handle includes a lower housing and an upper housing, which together form the internal compartment;

[0015] The drive motor, power supply battery, and negative ion generator, which are arranged axially, are mounted on the inner wall of the lower housing. The drive motor, the power supply battery, and the negative ion generator are all fixed to the circuit board assembly, which is mounted on the inner wall of the upper housing.

[0016] Furthermore, the lower housing and the upper housing are connected and assembled via a fastener and a transmission gear ring;

[0017] The fastener is snapped into and fixed to the circuit board card interface of the circuit board assembly;

[0018] The transmission gear ring is disposed on the opening plane of the lower housing and the upper housing.

[0019] Furthermore, the drive motor is disposed between the opening plane and one side of the power supply battery, and the negative ion generator is disposed on the other side of the power supply battery.

[0020] Furthermore, the circuit board assembly also includes a temperature sensor, which is located in the same radial section as the transmission gear ring.

[0021] Furthermore, the lower housing and the upper housing are provided with a plurality of housing mounting through holes, through which connectors are inserted, and one end of the connectors is connected to the circuit board fixing hole of the circuit board assembly.

[0022] In the above solution, the upper and lower shells further enable the modular batch production of the handle shell and different parts, saving production costs, achieving a compact integrated design of the components in the internal compartment of the handle, and allowing the internal compartment to house a large-volume power supply battery and negative ion generator.

[0023] Furthermore, the button group also includes a power switch button, and the screen component has the rotary button on one side of the projection area of ​​the light-transmitting component, and the power switch button and the heating button on the other side.

[0024] Furthermore, the light-transmitting element avoids the rotary button to form an arc-shaped mounting arm, and the mounting arm is snapped into the handle.

[0025] Furthermore, two rotary buttons are provided in an approximately triangular shape, with the two hypotenuses of the two rotary buttons parallel to the arc of the mounting arm;

[0026] The two rotary buttons control the forward and reverse rotation of the curling iron assembly, respectively.

[0027] Furthermore, the grip recess is arranged in a circle around the circumference of the handle, and the rotary button at least partially overlaps with the grip recess.

[0028] The above solution optimizes the distribution of the power switch, heating button, and rotary button on the light-transmitting component, ensuring that the user does not obstruct the screen or accidentally touch the buttons when holding the handle's grip protrusion. Furthermore, the installation structure of the light-transmitting component on the handle is aesthetically pleasing, robust, and reliable. The shapes of the two rotary buttons provide indication of the rotation direction, further facilitating the user's grip and use of the curling iron.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. The handle features raised and recessed grips for easy handling. The assembly structure of the handle, circuit board assembly, and light-transmitting component enables high-definition screen display, reducing the power consumption of the rechargeable curling iron and enhancing its battery life. Furthermore, the light-transmitting component and handle can be mass-produced separately, lowering the production cost of the curling iron.

[0031] 2. The upper and lower shells further enable modular batch production of the handle shell and different parts, saving production costs. They also enable a compact integrated design of the components in the internal compartment of the handle, and allow for the installation of a large power supply battery and negative ion generator in the internal compartment.

[0032] 3. The optimized distribution structure of the switch button, heating button, and rotary button on the light-transmitting component has been achieved, so that the user will not block the screen or accidentally touch the button when holding the handle. The installation structure of the light-transmitting component on the handle is more aesthetically pleasing, sturdy and reliable. The shape of the two rotary buttons indicates the rotation direction, further facilitating the user's grip and use of the curling iron. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the axial exploded structure of the handle portion of the handheld curling iron according to an embodiment of the present utility model;

[0034] Figure 2 This is a schematic diagram of the axial and radial exploded structure of the handle portion of the handheld curling iron according to an embodiment of the present utility model.

[0035] Figure 3This is a schematic diagram of the assembly structure of the handle portion of the handheld curling iron according to an embodiment of the present utility model;

[0036] Figure 4 This is a schematic diagram of the overall assembly structure of the handheld curling iron according to an embodiment of the present invention.

[0037] In the diagram: 1. Handle; 11. Lower housing; 12. Upper housing; 13. Grip protrusion; 14. Grip recess; 15. Light-transmitting component mounting part; 151. Snap-on interface; 152. Switch button opening; 153. Heating button opening; 154. Screen opening; 16. Rotary button opening; 171. Housing mounting through hole; 172. Fixing component;

[0038] 2. Light-transmitting component; 21. Mounting arm; 3. Circuit board assembly; 31. Button group; 311. Heating button; 312. Switch button; 313. Rotary button; 314. Screen component; 32. Circuit board connector; 33. Circuit board interface; 34. Circuit board mounting hole; 35. Temperature sensor;

[0039] 4. Drive motor; 5. Power supply battery; 6. Negative ion generator; 61. Generator fixing part; 7. Transmission gear set; 71. Transmission gear ring; 8. Connecting part; 9. Curling iron assembly. Detailed Implementation

[0040] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] like Figures 1 to 4 As shown, this utility model provides a handheld curling iron. The handle 1 has a grip protrusion 13 and a grip recess 14 for easy gripping and use. Through the assembly structure of the handle 1, circuit board assembly 3 and light-transmitting element 2, a high-definition screen display is achieved, which reduces the power consumption of the rechargeable curling iron for screen display and enhances the power life of the curling iron. Furthermore, the light-transmitting element 2 and the handle 1 can be mass-produced separately, which reduces the production cost of the curling iron.

[0045] like Figures 1 to 4 As shown, this embodiment proposes a handheld curling iron, comprising:

[0046] Curling iron component 9 is used to rotate and heat the hair;

[0047] Handle 1 is disposed at the end of the curling iron assembly 9;

[0048] The circuit board assembly 3 is installed in the internal compartment of the handle 1 and includes a button group 31 and a screen component 314 that both pass through the opening of the handle 1.

[0049] A light-transmitting element 2 is installed on the outer surface of the handle 1, the button group 31 passes through the light-transmitting element 2, and the light-transmitting element 2 is used to display the projection of the screen 314;

[0050] The button group 31 includes a rotation button 313 and a heating button 311. The rotation button 313 is used to control the rotation of the curling iron assembly 9, and the heating button 311 is used to control the heating of the curling iron assembly 9.

[0051] The handle 1 has grip protrusions 13 on both sides of the light-transmitting element 2, and grip recesses 14 between its opening plane and the grip protrusions 13.

[0052] Furthermore, the handle 1 includes a lower housing 11 and an upper housing 12, the lower housing 11 and the upper housing 12 enclosing to form the internal compartment;

[0053] The drive motor 4, power supply battery 5, and negative ion generator 6, which are arranged axially, are installed on the inner wall of the lower housing 11. The drive motor 4, power supply battery 5, and negative ion generator 6 are all fixed to the circuit board assembly 3. The circuit board assembly 3 is installed in contact with the inner wall of the upper housing 12.

[0054] Specifically, the material of the light-transmitting element 2 can be transparent plastics such as polycarbonate (PC) or acrylic (PMMA), or it can be a transparent conductive film in an LCD (liquid crystal display), or a flexible transparent plastic or film. The lower shell 11 and the upper shell 12 are made of ABS (a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S), PVC (polyvinyl chloride), and PP (polypropylene). Therefore, the handheld curling iron of this embodiment achieves good toughness and heat resistance in the part held by the user, and transparency in the part displaying the screen, reducing the light loss of the projection of the shell onto the screen 314, achieving a better screen display effect for the curling iron, and laying a structural foundation for the curling iron to display more content on the screen and have more diverse functions.

[0055] Specifically, the power supply battery 5 is used to store electrical energy. It can be understood that the larger the volume of the power supply battery 5, the greater its capacity to store electrical energy. Therefore, this embodiment maximizes the use of the space of the internal compartment by sequentially arranging the drive motor 4, the power supply battery 5 and the negative ion generator 6 along the axial direction, so as to achieve a longer battery life for the charging function of the handheld curling iron.

[0056] Furthermore, the lower housing 11 and the upper housing 12 are connected and assembled via a fastener 172 and a transmission gear ring 71;

[0057] The fastener 172 is snapped into and fixed to the circuit board card interface 33 of the circuit board assembly 3;

[0058] The transmission gear ring 71 is disposed on the opening plane of the lower housing 11 and the upper housing 12, and is used to rotate the curling iron assembly 9.

[0059] Furthermore, the drive motor 4 is disposed between the opening plane and one side of the power supply battery 5, and the negative ion generator 6 is disposed on the other side of the power supply battery 5.

[0060] Furthermore, the circuit board assembly 3 also includes a temperature sensor 35, which is located in the same radial section as the transmission gear ring 71.

[0061] Furthermore, the lower housing 11 and the upper housing 12 are provided with a plurality of housing mounting through holes 171, through which a connector 8 passes, and one end of the connector 8 is connected to the circuit board fixing hole 34 of the circuit board assembly 3.

[0062] In the above scheme, the upper shell 12 and the lower shell 11 further realize the modular batch production of the handle 1 shell and different parts, saving production costs, realizing the compact integrated design of the components in the internal compartment of the handle 1, and realizing the installation of a large power supply battery 5 and a negative ion generator 6 in the internal compartment.

[0063] Furthermore, the button group 31 also includes a switch button 312, and the screen component 314 is provided with the rotary button 313 on one side of the projection area of ​​the light-transmitting component 2, and the switch button 312 and the heating button 311 on the other side.

[0064] Furthermore, the light-transmitting element 2 avoids the rotary button 313 to form an arc-shaped mounting arm 21, and the mounting arm 21 is snapped into the handle 1.

[0065] Specifically, the end of the mounting arm 21 is engaged in the housing mounting through hole 171 of the upper housing 12.

[0066] Furthermore, two rotary buttons 313 are provided in an approximately triangular shape, and the two hypotenuses of the two rotary buttons 313 are parallel to the arc of the mounting arm 21;

[0067] The two rotary buttons 313 control the forward and reverse rotation of the curling iron assembly 9, respectively.

[0068] Furthermore, the grip recess 14 is arranged in a circle around the circumference of the handle 1, and the rotary button 313 at least partially overlaps with the grip recess 14.

[0069] The above solution achieves an optimized distribution structure of the switch button 312, heating button 311, and rotary button 313 on the light-transmitting component 2, so that the user will not block the screen or accidentally touch the button when holding the grip protrusion 13 of the handle 1. In addition, the installation structure of the light-transmitting component 2 on the handle 1 is more aesthetically pleasing, sturdy and reliable. The shape of the two rotary buttons 313 has the function of indicating the rotation direction, which further facilitates the user's grip and use of the curling iron.

[0070] Specifically, such as Figures 1 to 4As shown, the upper housing 12 has a switch button opening 152, a heating button opening 153, a screen opening 154, and a rotary button opening 16. The inner walls of the lower housing 11 and the upper housing 12 also have ribs for fixing the circuit board assembly 3. The upper housing 12 has a recessed light-transmitting element mounting part 15, which has multiple card interfaces 151 for snapping the light-transmitting element 2 and the circuit board assembly 3.

[0071] Specifically, such as Figures 1 to 4 As shown, the transmission gear set 7 includes the transmission gear ring 71 and multiple transmission gears. The transmission gear set 7 is used to transmit the rotation output by the drive motor 4 to the curling iron assembly 9. The forward and reverse rotation of the drive motor 4 is controlled by two rotary buttons 313 to change the rotation direction of the curling iron assembly 9.

[0072] Therefore, this embodiment facilitates user gripping and use through the grip protrusion 13 and grip recess 14 of the handle 1. The assembly structure of the handle 1, circuit board assembly 3, and light-transmitting element 2 enables high-definition screen display, reduces the power consumption of the rechargeable curling iron for screen display, enhances the curling iron's battery life, and allows for mass production of the light-transmitting element 2 and handle 1, reducing the production cost of the curling iron. The upper shell 12 and lower shell 11 further enable modular batch production of the handle 1 shell and different parts, saving production costs. The compact integration design of the components within the handle 1's internal compartment allows for the placement of a relatively large power supply battery 5 and negative ion generator 6 within the internal compartment. The optimized distribution structure of the switch button 312, heating button 311 and rotation button 313 on the light-transmitting component 2 has been achieved, so that the user will not block the screen or accidentally touch the button when holding the grip protrusion 13 of the handle 1. In addition, the installation structure of the light-transmitting component 2 on the handle 1 is more beautiful, firm and reliable. The shape of the two rotation buttons 313 has the function of indicating the rotation direction, which further facilitates the user's grip and use of the curling iron.

[0073] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0074] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hand-held curling iron, characterized in that include: Curling iron components (9); A handle (1) is provided at the end of the curling iron assembly (9); The circuit board assembly (3) is installed in the internal compartment of the handle (1) and includes a button group (31) and a screen (314) that both pass through the opening of the handle (1); A light-transmitting element (2) is installed on the outer surface of the handle (1), the button group (31) passes through the light-transmitting element (2), and the light-transmitting element (2) is used to display the projection of the screen (314); The button group (31) includes a rotary button (313) and a heating button (311). The rotary button (313) is used to control the rotation of the curling iron assembly (9). The handle (1) has grip protrusions (13) on both sides of the light-transmitting element (2), and grip recesses (14) are provided between its opening plane and the grip protrusions (13).

2. The hand-held curling iron of claim 1, wherein, The handle (1) includes a lower housing (11) and an upper housing (12), which together form the internal compartment; The drive motor (4), power supply battery (5) and negative ion generator (6) arranged along the axial direction are installed on the inner wall of the lower housing (11). The drive motor (4), the power supply battery (5) and the negative ion generator (6) are all fixed to the circuit board assembly (3). The circuit board assembly (3) is installed in contact with the inner wall of the upper housing (12).

3. The hand-held curling iron of claim 2, wherein, The lower housing (11) and the upper housing (12) are connected and assembled by a fastener (172) and a transmission gear ring (71); The fastener (172) is snapped into and fixed to the circuit board card interface (33) of the circuit board assembly (3); The transmission gear ring (71) is disposed on the opening plane of the lower housing (11) and the upper housing (12).

4. The hand-held curling iron of claim 3, wherein, The drive motor (4) is disposed between the opening plane and one side of the power supply battery (5), and the negative ion generator (6) is disposed on the other side of the power supply battery (5).

5. The hand-held curling iron of claim 3, wherein, The circuit board assembly (3) also includes a temperature sensor (35), which is located in the same radial section as the transmission gear ring (71).

6. The hand-held curling iron of claim 2, wherein, The lower housing (11) and the upper housing (12) are provided with a plurality of housing mounting through holes (171), through which a connector (8) passes, and one end of the connector (8) is connected to the circuit board fixing hole (34) of the circuit board assembly (3).

7. The hand-held curling iron of claim 1, wherein, The button group (31) also includes a switch button (312). The screen component (314) has the rotary button (313) on one side of the projection area of ​​the light-transmitting component (2), and the switch button (312) and the heating button (311) on the other side.

8. The hand-held curling iron according to any one of claims 1 to 7, characterized in that The light-transmitting element (2) avoids the rotary button (313) to form an arc-shaped mounting arm (21), and the mounting arm (21) is snapped into the handle (1).

9. The hand-held curling iron of claim 8, wherein, The rotary buttons (313) are arranged in two approximately triangular shapes, and the two hypotenuses of the two rotary buttons (313) are parallel to the arc of the mounting arm (21); The two rotating buttons (313) control the forward rotation and the reverse rotation of the curling iron assembly (9) respectively.

10. The hand-held curling iron of claim 8, wherein, The rotating buttons (313) are at least partially coincident with the holding recesses (14) along the circumference of the handle (1).

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