Handheld electromagnetic induction type hot air blower

Abstract

The invention discloses a handheld electromagnetic induction type hot air blower, which belongs to the technical field of electromagnetic induction and comprises a shell, an electromagnetic induction device, an electromagnetic induction device and an electromagnetic induction device, the transformer is arranged in the accommodating cavity; the heating coil is arranged in the accommodating cavity and is connected to one side of the transformer; the heated part is arranged in the accommodating cavity and is arranged in the alternating magnetic field generated by the heating coil; and the mounting structure is connected between the heated part and the heating coil. According to the handheld electromagnetic induction type hot air blower, core components such as the transformer, the heating coil, the heated part and the installation structure are integrated in the containing cavity of the shell, the device is integrated and compact in structure, an alternating magnetic field is generated through induction heating to directly act on the heated part, and the efficient and non-contact heating effect of the device is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electromagnetic induction, and particularly relates to a handheld electromagnetic induction type hot hair dryer. BACKGROUND

[0002] The existing induction heating technology is mostly applied to the industrial field, and the equipment usually has problems such as large volume, complex structure and inconvenience for carrying, and is difficult to be directly applied to the handheld device scene with high requirements for volume and portability. Some designs trying to miniaturize often have defects such as low energy conversion efficiency, uneven heating and slow thermal response speed. For example, the traditional resistance wire heating method has low efficiency and safety risks; and a simple induction heating structure is difficult to realize efficient and uniform heat management in a compact space. In addition, the internal space of the handheld device is extremely limited, how to efficiently integrate the transformer, heating coil, heated body and other components and realize stable and reliable mechanical fixation and electrical connection, while ensuring use safety, is a common problem faced by the existing technology. SUMMARY

[0003] To solve the above problems, the primary purpose of the present application is to provide a handheld electromagnetic induction type hot hair dryer, which solves the technical problem of how to realize conductive support and heating function in a limited space.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows:

[0005] The present application provides a handheld electromagnetic induction type hot hair dryer, comprising:

[0006] A housing is provided with a containing cavity;

[0007] A transformer is arranged in the containing cavity;

[0008] A heating coil is arranged in the containing cavity and connected to one side of the transformer;

[0009] A heated part is arranged in the containing cavity and arranged in the alternating magnetic field generated by the heating coil;

[0010] An installation structure is connected between the heated part and the heating coil.

[0011] The present application provides a handheld electromagnetic induction type hot hair dryer, which integrates the core components such as transformer, heating coil and heated part in the containing cavity of the housing, realizes the integration and compact structure of the device, is convenient to carry and operate, and directly acts on the heated part through the alternating magnetic field generated by induction heating, which lays a technical foundation for efficient and non-contact heating of the device.

[0012] Further, the transformer comprises:

[0013] A ring-shaped magnetic core;

[0014] The primary coil is arranged around the annular magnetic core.

[0015] The secondary coil is arranged around the annular magnetic core.

[0016] The primary terminal plate is connected with the primary coil and used for inputting power supply.

[0017] The secondary terminal plate is connected with the secondary coil.

[0018] The primary coil is magnetically coupled with the secondary coil, and the heating coil is connected between two ends of the secondary terminal plate.

[0019] The annular magnetic core and the uniformly wound primary coil and secondary coil form a high-efficiency magnetic circuit, reduce magnetic leakage and loss, and make the transmission efficiency of energy from the primary coil to the secondary coil higher, so that high-efficiency energy transmission is realized. The independent primary terminal plate and secondary terminal plate clearly distinguish the high-voltage input side and the low-voltage and high-current output side, facilitate wiring, provide a structural basis for electrical isolation, and improve safety. The power supply converted from the commercial power by the transformer is very suitable for directly driving the heating coil to generate a strong alternating magnetic field and realize high-current driving.

[0020] Further, the heated part comprises:

[0021] The heat-conducting layer is in a sleeve structure.

[0022] The heating layer is in a sleeve structure; wherein,

[0023] The heat-conducting layer, the heating coil, and the heating layer are coaxially sleeved from inside to outside, the heating coil is arranged around the heat-conducting layer, and the heating layer surrounds the heating coil.

[0024] By setting the heat-conducting layer and the heating layer as sleeve structures, a three-layer coaxial structure of heat-conducting layer-heating coil-heating layer is formed, the heating layer is efficiently heated as the main heat source, and the heat-conducting layer rapidly transfers heat inward, realizing a directional and efficient heat transfer path. This structure effectively confines the magnetic field energy generated by the heating coil in the space between the heat-conducting layer and the heating layer, and the heating layer fully absorbs the energy, reducing energy waste and improving heating efficiency.

[0025] Further, the heat-conducting layer is a copper layer.

[0026] The excellent thermal conductivity of the heat-conducting layer, i.e., the copper layer, can rapidly transfer heat from the heating layer to the internal area of the device that needs to be heated, prevent local overheating, and make the temperature distribution more uniform.

[0027] Further, the heating layer is a magnetic stainless steel layer.

[0028] The heating layer, i.e. the magnetic stainless steel layer, has high magnetic hysteresis loss and eddy current loss in an alternating magnetic field, and thus can be rapidly and efficiently heated, and the magnetic stainless steel layer is an ideal inductive heating material.

[0029] Further, the mounting structure comprises:

[0030] a first mounting block extending along the length direction of the heating coil and arrayed between the heating coil and the heat-conducting layer;

[0031] a second mounting block extending along the length direction of the heating coil and arrayed between the heating coil and the heating layer; and

[0032] a third mounting block arranged on the inner circumferential surface of the heat-conducting layer.

[0033] Further, the first mounting block is fixedly connected with the inner circumferential surface of the heating coil respectively;

[0034] the second mounting block is fixedly connected with the outer circumferential surface of the heating coil and the inner circumferential surface of the heating layer respectively;

[0035] the third mounting block is fixedly connected with the inner circumferential surface of the heat-conducting layer.

[0036] The arrayed first mounting block and second mounting block firmly connect the heating coil, the heat-conducting layer and the heating layer into a whole, preventing the components from loosening or shifting during handheld movement or vibration, and ensuring the structural reliability and mechanical stability. The first mounting block, the second mounting block and the third mounting block ensure the accurate relative positions between the sleeve layers, and maintain the uniform gap, which is crucial for obtaining uniform magnetic field distribution and heating effect, and avoiding local cold or hot spots. The third mounting block provides additional support for the internal heat-conducting layer, and serves as the mounting base for other internal components such as the first conductive part and the second conductive part as described below, thereby providing a support base.

[0037] Further, the mounting structure further comprises:

[0038] a first conductive part connected between one end of the secondary terminal plate and one end of the heating coil;

[0039] a second conductive part connected between the other end of the secondary terminal plate and the other end of the heating coil;

[0040] an insulating cross beam penetrating through the heat-conducting layer and extending to the heating layer, and connecting the second conductive part.

[0041] The first conductive part and the second conductive part realize a complete low-voltage and large-current loop from the secondary terminal to both ends of the heating coil, ensure that electric energy can be efficiently transmitted to the heating coil, reduce line loss, and build a reliable low-impedance loop. At the same time, the use of the insulating cross beam solves the possible electrical short circuit in the original scheme, connects the conductive parts through the insulating cross beam, avoids the risk of electric leakage, greatly improves the electrical safety of the product. In addition, the insulating cross beam provides a solid mechanical support for the second conductive part, prevents the second conductive part from being displaced due to the electric force generated by the current or external vibration, and ensures the reliability of long-term work, thereby realizing mechanical support and fixation.

[0042] Further, it further comprises:

[0043] A switch is arranged in the shell and is used to generate a power-on instruction, a power-off instruction and a temperature adjustment instruction.

[0044] Through the switch arranged on the shell, the user can conveniently control the on-off and temperature adjustment of the device, improve the ease of use and user experience of the product, and realize convenient operation of the user.

[0045] Further, it further comprises:

[0046] A circuit board is arranged in the accommodating cavity and is connected to the primary terminal plate and the switch, and is used to control the electric energy input to the primary coil according to the instruction of the switch.

[0047] The electric energy input to the primary coil is accurately controlled by the circuit board, the stable working temperature is maintained according to the user setting or sensor feedback, the precise temperature control is realized, the power adjustment is realized by meeting different heating demands, and the product intelligence and safety protection are realized by integrating the overcurrent and overtemperature protection functions.

[0048] The beneficial effects of the present application are: compared with the prior art, the handheld electromagnetic induction type hot hair dryer provided by the present application comprises: a shell provided with an accommodating cavity; a transformer arranged in the accommodating cavity; a heating coil arranged in the accommodating cavity and connected to one side of the transformer; a heated part arranged in the accommodating cavity and arranged in an alternating magnetic field generated by the heating coil; and a mounting structure connected between the heated part and the heating coil. The handheld electromagnetic induction type hot hair dryer provided by the present application integrates the transformer, the heating coil and the heated part and other core components in the accommodating cavity of the shell, realizes the integration and compact structure of the device, generates an alternating magnetic field through induction heating to directly act on the heated part, and realizes the efficient and non-contact heating effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a perspective view of the handheld electromagnetic induction type hot hair dryer.

[0050] Figure 2is Figure 1 The internal structure diagram of the handheld electromagnetic induction type heat hair dryer.

[0051] Figure 3 is Figure 2 The structure diagram of the heated part of the handheld electromagnetic induction type heat hair dryer.

[0052] Figure 4 is Figure 3 The sectional view in A-A direction.

[0053] In the figure: 10, the shell; 20, the transformer; 21, the ring magnetic core; 22, the primary coil; 23, the secondary coil; 24, the primary terminal plate; 25, the secondary terminal plate; 30, the heating coil; 40, the heated part; 41, the heat-conducting layer; 42, the heating layer; 50, the mounting structure; 51, the first mounting block; 52, the second mounting block; 53, the third mounting block; 54, the first conductive part; 55, the second conductive part; 56, the insulating crossbeam; 60, the switch; 70, the circuit board; 80, the opening. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0055] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0056] Referring to Figures 1-4 The embodiment provides a handheld electromagnetic induction type heat hair dryer, which comprises:

[0057] The shell 10 is provided with a containing cavity;

[0058] The transformer 20 is arranged in the containing cavity;

[0059] The heating coil 30 is arranged in the containing cavity and connected to one side of the transformer 20;

[0060] The heated part 40 is arranged in the containing cavity and arranged in the alternating magnetic field generated by the heating coil 30;

[0061] The mounting structure 50 is connected between the heated part 40 and the heating coil 30.

[0062] The handheld electromagnetic induction type heat hair dryer provided by the present application integrates the core components such as the transformer 20, the heating coil 30 and the heated part 40 in the containing cavity of the shell 10, realizes the integration and compact structure of the device, is convenient to carry and operate, directly acts on the heated part 40 through the alternating magnetic field generated by induction heating, and lays a technical foundation for efficient and non-contact heating of the device.

[0063] Furthermore, transformer 20 includes:

[0064] 21-ring magnetic core;

[0065] The primary coil 22 is wound around the toroidal magnetic core 21;

[0066] Secondary coil 23 is wound around toroidal magnetic core 21;

[0067] The primary terminal block 24 is connected to the primary coil 22 and is used for power input.

[0068] The secondary terminal block 25 is connected to the secondary coil 23;

[0069] Both the primary terminal block 24 and the secondary terminal block 25 are annular plates, and they are arranged in a concentric ring shape with an isolation gap between them.

[0070] The primary coil 22 and the secondary coil 23 are magnetically coupled; the heating coil 30 is connected between the two ends of the secondary terminal block 25.

[0071] The use of a toroidal magnetic core 21 and uniformly wound primary coil 22 and secondary coil 23 constitutes a highly efficient magnetic circuit, reducing magnetic leakage and losses, and making the energy transmission efficiency from the primary coil 22 to the secondary coil 23 higher, thus achieving efficient energy transmission. The independent primary terminal board 24 and secondary terminal board 25 clearly distinguish the high-voltage input side and the low-voltage high-current output side, which facilitates wiring and provides a structural basis for electrical isolation, thereby improving safety. The transformer 20 converts the mains power into a low-voltage, high-current power supply, which is very suitable for directly driving the heating coil 30 to generate a strong alternating magnetic field and achieve high-current drive.

[0072] Furthermore, the heated component 40 includes:

[0073] The heat-conducting layer 41 is designed as a sleeve structure;

[0074] Heating layer 42 is designed as a sleeve structure; wherein,

[0075] The heat-conducting layer 41, the heating coil 30, and the heating layer 42 are coaxially arranged from the inside to the outside. The heating coil 30 is arranged around the heat-conducting layer 41, and the heating layer 42 is arranged around the heating coil 30.

[0076] By designing both the heat-conducting layer 41 and the heating layer 42 as sleeve structures, a three-layer coaxial structure is formed: heat-conducting layer 41, heating coil 30, and heating layer 42. The heating layer 42 serves as the main heat source and is heated efficiently, while the heat-conducting layer 41 rapidly transfers heat inward, achieving a directional and efficient heat transfer path. This structure effectively confines the magnetic field energy generated by the heating coil 30 within the space between the heat-conducting layer 41 and the heating layer 42, and it is fully absorbed by the heating layer 42, reducing energy waste and improving heating efficiency.

[0077] Furthermore, the thermally conductive layer 41 is a copper layer.

[0078] Utilizing the excellent thermal conductivity of the heat-conducting layer 41, i.e., the copper layer, heat can be quickly transferred from the heating layer 42 to the internal area of ​​the device that needs to be heated, preventing local overheating and making the temperature distribution more uniform.

[0079] Furthermore, the heating layer 42 is a magnetic stainless steel layer.

[0080] The magnetic stainless steel layer 42, which is the heating layer, has high hysteresis loss and eddy current loss in an alternating magnetic field, and can therefore be heated quickly and efficiently. The magnetic stainless steel layer is an ideal induction heating material.

[0081] Furthermore, the mounting structure 50 includes:

[0082] The first mounting block 51 extends along the length of the heating coil 30 and is distributed in an array between the heating coil 30 and the heat-conducting layer 41;

[0083] The second mounting block 52 extends along the length of the heating coil 30 and is arrayed between the heating coil 30 and the heating layer 42; and,

[0084] The third mounting block 53 is disposed on the inner peripheral surface of the heat-conducting layer 41.

[0085] Furthermore, the first mounting block 51 is fixedly connected to the inner circumferential surface of the heating coil 30;

[0086] The second mounting block 52 is fixedly connected to the outer peripheral surface of the heating coil 30 and the inner peripheral surface of the heating layer 42 respectively;

[0087] The third mounting block 53 is fixedly connected to the inner circumferential surface of the heat-conducting layer 41.

[0088] The array-like distribution of the first mounting block 51 and the second mounting block 52 securely connects the heating coil 30, the heat-conducting layer 41, and the heating layer 42 into a unified whole, preventing loosening or displacement of the components during hand-held movement or vibration, thus ensuring structural reliability and mechanical stability. The first mounting block 51, the second mounting block 52, and the third mounting block 53 ensure precise relative positioning between the sleeve layers, maintaining uniform gaps. This is crucial for obtaining a uniform magnetic field distribution and heating effect, avoiding localized cold or hot spots. The third mounting block 53 provides additional support for the internal heat-conducting layer 41 and serves as a mounting base for other internal components, such as the first conductive part 54 and the second conductive part 55 described below, thus providing a support foundation.

[0089] Furthermore, the mounting structure 50 also includes:

[0090] The first conductive part 54 is connected between one end of the secondary terminal board 25 and one end of the heating coil 30;

[0091] The second conductive part 55 is connected between the other end of the secondary terminal board 25 and the other end of the heating coil 30;

[0092] An insulating crossbeam 56 penetrates the heat-conducting layer 41 and extends to the heating layer 42, and is connected to the second conductive part 55.

[0093] The first conductive part 54 and the second conductive part 55 form a complete low-voltage, high-current circuit from the secondary terminal board 25 to both ends of the heating coil 30, ensuring that electrical energy can be efficiently transferred to the heating coil 30, reducing line losses, and constructing a reliable low-impedance circuit. Simultaneously, the use of the insulating beam 56 solves the potential electrical short circuit problem in the original design. Connecting the second conductive part 55 through the insulating beam 56 avoids the risk of leakage, greatly improving the electrical safety of the product. Furthermore, the insulating beam 56 provides robust mechanical support for the second conductive part 55, preventing it from shifting due to electrodynamic forces generated by the current or external vibrations, ensuring long-term operational reliability, thus achieving mechanical support and fixation.

[0094] It should be noted that the first mounting block 51, the second mounting block 52, the third mounting block 53, the first conductive part 54, and the second conductive part 55 are all conductive structural components. By upgrading the conductor that transmits high current from a simple conductive function to a component that simultaneously possesses the triple functions of conductivity, structural support, and heating, the energy loss of current in the transmission path is fully utilized and converted into useful heat energy, improving the overall energy utilization rate of the system and maximizing system efficiency. The response speed of resistance heating is extremely fast. As soon as power is applied, the mounting blocks and conductive parts will heat up rapidly and directly heat the heat-conducting layer 41 through heat conduction, thereby achieving rapid preheating of the device. The mounting blocks are arranged in an array, which means that heat is simultaneously and evenly introduced from multiple points on the inner wall of the heat-conducting layer 41. Combined with simple external induction heating, this effectively reduces the temperature difference between the inner and outer walls and in the circumferential direction, making the temperature of the heated component 40 more uniform. In addition, there is no need to design a separate set of resistance heating wires and their fixing structure. The auxiliary heating function can be achieved using existing conductive support components, which makes the internal structure more compact and integrated, very suitable for the high space requirements of handheld devices, simplifying the structure and achieving compactness. Therefore, when these conductive structural components carry a large current during operation, they will generate Joule heat due to their own resistance. This heat is transferred to the heat-conducting layer 41 and the heating layer 42 through direct heat conduction. Together with induction heating, it achieves rapid preheating and uniform heating of the heated component 40, thereby improving the thermal response speed and heating efficiency of the entire device and realizing the effect of combining the current transmission path, mechanical support structure and auxiliary heating source.

[0095] Furthermore, the handheld electromagnetic induction hair dryer provided by the present invention also includes:

[0096] Switch 60, located in housing 10, is used to generate power-on commands, power-off commands, and temperature adjustment commands.

[0097] With the switch 60 set on the housing 10, users can easily control the device to turn on and off and adjust the temperature, which improves the ease of use of the product and the user experience, and enables convenient operation.

[0098] Furthermore, the handheld electromagnetic induction hair dryer provided by the present invention also includes:

[0099] Circuit board 70 is disposed in the receiving cavity and connected to primary terminal board 24 and switch 60. It is used to control the electrical energy input to primary coil 22 according to the instructions of switch 60.

[0100] The circuit board 70 precisely controls the electrical energy of the input primary coil 22, maintaining a stable operating temperature based on user settings or sensor feedback, thus achieving precise temperature control; it also enables power adjustment to meet different heating requirements; and it integrates overcurrent and overtemperature protection functions to achieve product intelligence and safety protection.

[0101] Furthermore, in a handheld electromagnetic induction hot air blower provided by the present invention, the housing 10 has an opening 80 at the end of the heating layer 42 away from the transformer 20, and the heat generated by the heated element 40 is blown outward from the opening 80.

[0102] Therefore, the present invention provides a handheld electromagnetic induction heat dryer, comprising: a housing 10 with a receiving cavity; a transformer 20 disposed within the receiving cavity; a heating coil 30 disposed within the receiving cavity and connected to one side of the transformer 20; a heating element 40 disposed within the receiving cavity and positioned within the alternating magnetic field generated by the heating coil 30; and a mounting structure 50 connected between the heating element 40 and the heating coil 30. The handheld electromagnetic induction heat dryer provided by the present invention integrates core components such as the transformer 20, heating coil 30, and heating element 40 within the receiving cavity of the housing 10, achieving an integrated and compact structure. It utilizes induction heating to generate an alternating magnetic field that directly acts on the heating element 40, achieving efficient and non-contact heating.

[0103] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hand-held electromagnetic induction heat hair dryer characterized by, include: The shell has a receiving cavity; The transformer is disposed within the receiving cavity; A heating coil is disposed within the receiving cavity and connected to one side of the transformer; The heated element is disposed within the receiving cavity and within the alternating magnetic field generated by the heating coil; The mounting structure is connected between the heated component and the heating coil.

2. A hand-held electromagnetic induction heat hair dryer as claimed in claim 1, characterized in that, The transformer includes: Toroidal core; The primary coil is wound around the toroidal magnetic core; The secondary coil is wound around the toroidal magnetic core; The primary terminal block is connected to the primary coil and is used for power input. The secondary terminal block is connected to the secondary coil. The primary coil and the secondary coil are magnetically coupled; the heating coil is connected between the two ends of the secondary terminal block.

3. A hand-held electromagnetic induction heat hair iron as claimed in claim 2, characterized in that, The heat-receiving component includes: The heat-conducting layer is designed as a sleeve structure; The heating layer is designed as a sleeve structure; wherein, The heat-conducting layer, the heating coil, and the heating layer are coaxially sleeved from the inside out. The heating coil is arranged around the heat-conducting layer, and the heating layer surrounds the heating coil.

4. A hand-held electromagnetic induction heat hair iron as claimed in claim 3, characterized in that, The thermally conductive layer is a copper layer.

5. A hand-held electromagnetic induction heat hair iron as claimed in claim 4, characterized in that, The heating layer is a magnetic stainless steel layer.

6. A hand-held electromagnetic induction heat hair iron as claimed in claim 3, characterized in that, The mounting structure includes: The first mounting block extends along the length of the heating coil and is distributed in an array between the heating coil and the heat-conducting layer; The second mounting block extends along the length of the heating coil and is arrayed between the heating coil and the heating layer; and, The third mounting block is disposed on the inner circumferential surface of the heat-conducting layer.

7. A hand-held electromagnetic induction heat hair iron as claimed in claim 6, characterized in that, The first mounting block is fixedly connected to the inner circumferential surface of the heating coil; The second mounting block is fixedly connected to the outer peripheral surface of the heating coil and the inner peripheral surface of the heating layer, respectively. The third mounting block is fixedly connected to the inner circumferential surface of the heat-conducting layer.

8. A hand-held electromagnetic induction heat hair iron as claimed in claim 7, characterized in that, The mounting structure also includes: A first conductive part is connected between one end of the secondary terminal block and one end of the heating coil; The second conductive part is connected between the other end of the secondary terminal board and the other end of the heating coil; An insulating crossbeam penetrates the heat-conducting layer and extends to the heating layer, and is connected to the second conductive part.

9. A hand-held electromagnetic induction heat hair iron as claimed in claim 8, characterized in that, Also includes: A switch, located in the housing, is used to generate power-on commands, power-off commands, and temperature adjustment commands.

10. A hand-held electromagnetic induction heat hair iron as claimed in claim 9, characterized in that, Also includes: A circuit board is disposed within the receiving cavity and connected to the primary terminal board and the switch, used to control the electrical energy input to the primary coil according to the instructions of the switch.

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