CN113556838A

CN113556838A - Handheld battery type electromagnetic induction heater

Info

Publication number: CN113556838A
Application number: CN202010328905.7A
Authority: CN
Inventors: 董鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-10-26
Anticipated expiration: 2040-04-23
Also published as: CN113556838B

Abstract

The invention provides a handheld battery type electromagnetic induction heater, which is an electromagnetic induction heater which is powered by a storage battery, is used by hands, has higher heating efficiency and is suitable for heating smaller metal workpieces. The method comprises the following steps: the electromagnetic induction heating device comprises a storage battery, an electromagnetic induction coil iron core, a heat dissipation fan, a control circuit board, a display, a heating switch, a machine body shell and the like. The electromagnetic induction coil iron core is arranged inside the solenoid-shaped electromagnetic induction coil, so that the internal magnetic resistance of the solenoid is reduced. Can realize non-contact heating, has the advantage that the removal is nimble, convenient operation.

Description

Handheld battery type electromagnetic induction heater

Technical Field

The invention relates to the field of electromagnetic heating, in particular to a handheld battery type electromagnetic induction heater.

Background

The basic principle of electromagnetic induction heating is that an electromagnetic coil generates a variable magnetic field, and the variable magnetic field generates an induced eddy current in a conductor to generate heat. The electromagnetic induction heating utilizes a variable magnetic field heating mode, so that the electromagnetic induction heater has the capability of non-contact heating, and is particularly suitable for heating metal objects which cannot be directly contacted and shielded.

In the conventional electromagnetic induction heaters such as an electromagnetic oven and an electromagnetic induction sealing machine, in order to improve heating efficiency and heat uniformly, an electromagnetic coil of the electromagnetic induction heater is generally a planar spiral with a large area, and the cross-sectional area of a heated object or a pot is required to be larger than that of the electromagnetic coil, so that the conventional electromagnetic heating technology cannot heat a small workpiece well.

The electromagnetic heaters used in the industries of metallurgy, metal processing and the like use solenoid coils, but most of the electromagnetic heaters adopting the solenoid coils in the prior art place a heated workpiece in the solenoid and have poor heating effect on the workpiece which cannot be placed in the solenoid, so that the existing electromagnetic heating technology has poor heating effect on the smaller workpiece which cannot be placed in the solenoid.

For example, the applicant previously proposed "an electromagnetic induction heating furniture connector" to be a connector for connecting parts of furniture to wood. The connecting piece is arranged inside the furniture wood to be connected and then heated and bonded by using an electromagnetic induction heater. Because the connecting piece is arranged inside the furniture wood, the connecting piece cannot be placed inside the existing solenoid electromagnetic induction coil; and the connecting piece is smaller, and the defects of serious magnetic flux leakage, low heating efficiency and the like exist when the existing plane spiral electromagnetic heater is used, so that the existing electromagnetic heating technology cannot well finish heating similar to the workpiece with smaller volume.

The existing electromagnetic induction heaters such as an electromagnetic oven, an electromagnetic induction sealing machine and the like mostly use 220V alternating current for power supply, and due to the existence of a power line, the defects of inconvenient movement and incapability of being used in places without power supplies and in the field exist in the use process.

Disclosure of Invention

The invention aims to provide an electromagnetic induction heater which is powered by a storage battery, can be used by hands, has high heating efficiency and is suitable for heating smaller metal workpieces.

To achieve the above object, the present invention provides a hand-held battery type electromagnetic induction heater comprising: the electromagnetic induction heating device comprises a storage battery, an electromagnetic induction coil iron core, a heat dissipation fan, a control circuit board, a display, a heating switch, a machine body shell and the like. The electromagnetic induction coil is the close-wound solenoid electromagnetic induction coil that the number of turns is no less than 3 turns, and the electromagnetic induction coil iron core is by: the electromagnetic induction coil core is arranged in the solenoid-shaped electromagnetic induction coil and plays a role in reducing the internal magnetic resistance of the solenoid.

The existing electromagnetic induction heaters such as an electromagnetic oven, an electromagnetic induction sealing machine and the like use 220V alternating current for power supply, and the main working flow is as follows: the alternating current is rectified and then converted into direct current, then the direct current is filtered by an LC filter circuit and converted into voltage-stabilizing direct current, and the voltage-stabilizing direct current is converted into high-frequency current through inverter current to generate a high-frequency magnetic field. The handheld battery type electromagnetic induction heater directly uses the storage battery for power supply, and can simplify the original rectification and filtering processes. And no power cord is needed, so that the mobile robot has the advantage of more flexible movement, and can be applied to the field or the use without special conditions such as power supply and the like.

The invention is characterized in that:

1. in order to make the induction magnetic field more concentrated and the magnetic field intensity larger, the electromagnetic induction coil adopts a straight solenoid coil with the number of turns not less than 3 as the electromagnetic induction coil. As is well known, the electromagnetic induction coil has smaller induction intensity and larger energy loss as the distance from the heated workpiece increases, and in the conventional electromagnetic induction heaters such as an induction cooker and an electromagnetic induction sealing machine, a planar spiral electromagnetic coil is generally used in order to bring the induction coil as close as possible to the heated object, and it is generally required that the cross-sectional area of the heated workpiece is larger than the area of the induction coil in order to prevent magnetic leakage. But when directly using the less work piece of current plane spiral solenoid technique heating, because the work piece sectional area is very little, induction coil's area also will be very little like this, the too little problem of electromagnetic induction coil area can appear, want to obtain bigger induction magnetic field intensity and heating power, just need use bigger electric current, the too big heat loss that can cause of induced current is unfavorable for long-time use of heater, too big operating current also can cause higher manufacturing cost and great potential safety hazard simultaneously. The invention adopts the straight solenoid-shaped induction coil, achieves the cumulative effect of the magnetic field by using the multi-turn close-wound solenoid coil, has the advantages of small magnetic field area, concentrated magnetic induction lines and large magnetic field intensity, and is very suitable for heating small workpieces.

2. In order to reduce the magnetic resistance in the solenoid coil and increase the magnetic flux of the induction coil, the invention also adopts the technical scheme that the electromagnetic induction coil iron core is arranged in the solenoid induction coil. The electromagnetic induction coil iron core is composed of: the electromagnetic induction coil core is made of silicon steel, iron-nickel alloy, amorphous alloy, nanocrystalline alloy, ferrite, metal soft magnetic powder core and other materials, and the cross-sectional shape of the electromagnetic induction coil core is approximate to any one of T, L, I, J and other shapes. The electromagnetic induction coil iron core has smaller magnetic resistance and higher magnetic permeability, can greatly influence and change the distribution of magnetic fields, converges magnetic induction lines, and simultaneously can obviously reduce the magnetic resistance in the solenoid coil and increase the magnetic flux of the induction coil, so that the handheld battery type electromagnetic induction heater has higher heating power and improves the heating efficiency.

3. The invention relates to a handheld battery type electromagnetic induction heater which is provided with an electromagnetic induction coil and an electromagnetic induction coil iron core, and energy loss is inevitably generated when current is switched on, namely the electromagnetic induction coil and the electromagnetic induction coil iron core generate heat, which is commonly called copper loss (electromagnetic induction coil loss) and iron loss (electromagnetic induction coil iron core loss). In the handheld battery type electromagnetic induction heater, the electromagnetic induction coil wire preferably uses a plurality of strands or single strands of copper or copper-coated aluminum wire, the larger the diameter of the wire is, the smaller the resistance is, and the smaller the copper loss is, and the electromagnetic induction coil preferably uses a single-layer close-wound solenoid-shaped coil, and the heat dissipation area is larger, so the heating problem of the electromagnetic induction coil is not serious. The invention mainly solves the problem of heat dissipation of iron loss generated by an electromagnetic induction coil iron core. The invention adopts various technical schemes of increasing the heat dissipation efficiency of the electromagnetic induction coil iron core, replacing the electromagnetic induction heating head and the like to solve the heat dissipation problem of the electromagnetic induction coil iron core, and the following details are provided. For convenience, one end of the electromagnetic induction coil core extending out of the housing is called a front end, and the other end located inside the housing is called a rear end.

(1) The technical scheme for increasing the heat dissipation efficiency of the electromagnetic induction coil iron core is provided. In order to accelerate the heat dissipation efficiency of the electromagnetic induction coil iron core, the rear end of the electromagnetic induction coil iron core with the section similar to T, L, J and other shapes can be designed into a radial radiating fin shape, the front end of the electromagnetic induction coil iron core extends out of the outer part of the machine body shell to serve as an electromagnetic induction point, and the electromagnetic induction point is close to a heated workpiece, so that the heated workpiece generates an induction eddy current, and the heating purpose is achieved. The solenoid-shaped electromagnetic induction coil is wound on the electromagnetic induction coil iron core, and the rear end of the electromagnetic induction coil iron core is arranged between the electromagnetic coil and other components of the heater, so that the electromagnetic induction coil iron core can play a role in promoting heat dissipation, reduce the temperature of the electromagnetic induction coil iron core and ensure that the electromagnetic heater can work for a long time.

(2) The technical scheme of the iron core of the electromagnetic induction coil can be replaced. When the temperature of the electromagnetic induction coil iron core is too high, the electromagnetic induction coil iron core can be replaced. For example, an opening capable of taking and placing the electromagnetic induction coil iron core is arranged on the machine body shell or the heating handle shell, the opening is connected with the machine body shell or the heating handle shell through a structure which is convenient to detach, such as a thread or a buckle or a slot, and the electromagnetic induction coil iron core can be replaced through the opening. Or the electromagnetic induction coil iron core is set into the shape of cylinder or cuboid, polygon and the like with the cross section being approximate to 'I', the rear end of the electromagnetic induction coil iron core is provided with a thread or a fixing structure such as a buckle and a slot, the electromagnetic induction coil iron core can be replaced by external direct pulling and inserting or rotation, and the electromagnetic induction coil iron core has the advantage of convenient replacement.

(3) The technical scheme of replaceable electromagnetic induction heating head, replaceable electromagnetic induction heating head includes: electromagnetic induction coil, electromagnetic induction coil iron core, heating head casing isotructure, electromagnetic induction coil can pass through wire and control circuit board electric connection, and the interchangeable electromagnetic induction heating head passes through screw, buckle, the arbitrary one or several kinds of combinations in the slot is connected with engine body shell. When the temperature of the electromagnetic induction coil or/and the electromagnetic induction coil iron core is too high, the replaceable electromagnetic induction heating head is replaced, and the problem of heating can be solved.

4. The influence of the induction magnetic field on other parts of the heater is reduced. The induction magnetic field may affect other metal parts of the heater in addition to heating the heated workpiece. The cross section of the electromagnetic induction coil iron core of the handheld battery type electromagnetic induction heater is in any one or combination of a plurality of approximate L, T, J, I shapes, and one end of the electromagnetic induction coil iron core, which is positioned in a machine body, is in a shape of a radiating fin. The rear end of the electromagnetic induction coil iron core in the shape of the radiating fin not only can play a role in promoting heat radiation, but also can play a role in guiding and changing the direction of a magnetic field, and can reduce the influence of the induction magnetic field on other components of the heater. When the electromagnetic induction coil core is set to be in a shape of a cylinder or a cuboid, a polygon, etc. with a section similar to "I", an electromagnetic shielding device is set between the rear end of the electromagnetic induction coil core and other components of the heater to shield an induction magnetic field, and the electromagnetic shielding device is only metal mesh, ferrite strip, etc. in the prior art of the existing electromagnetic oven and electromagnetic sealing machine, so that detailed description is not provided herein.

5. The invention relates to a handheld battery type electromagnetic induction heater.A heating temperature adjusting circuit is arranged on a control circuit board. The heating temperature regulating circuit is any one of three regulating modes of regulating and controlling fixed heating power by heating time, or regulating and controlling fixed heating time by heating power, or regulating and controlling heating time and heating power together.

(1) The fixed heating power passes through the heating time regulation and control circuit. The heating power is fixed, and the heating temperature of the heated workpiece is adjusted by adjusting the single heating time of the electromagnetic induction heater. Correspondingly, a single heating time adjusting button is arranged on the machine body shell, the single heating time of the electromagnetic induction heater can be adjusted, and the single heating time of the electromagnetic induction heater can be set through the heating time adjusting circuit. Before working, the single heating time required for heating the heated workpiece to reach the working temperature is determined through a pre-test, then the single heating time of the handheld battery type electromagnetic induction heater is set, the electromagnetic induction point is aligned to the heated workpiece, a heating switch is pressed, a heating process can be completed according to the preset single heating time, and the handheld battery type electromagnetic induction heater has the advantages of being simple and stable in structure and simple and convenient to operate.

(2) The heating power regulating and controlling circuit is heated for a fixed heating time. The heating time is fixed, and the heating temperature of the heated workpiece is adjusted through the heating power adjusting circuit. Correspondingly, a heating power adjusting button is arranged on the machine body shell and can adjust the heating power of the electromagnetic induction heater. Before working, the heating power required for heating the heated workpiece to reach the working temperature is determined through a pre-test, then the heating power of the handheld battery type electromagnetic induction heater is set, the electromagnetic induction point is aligned to the heated workpiece, the heating switch is pressed, and the electromagnetic induction heater can finish a heating process according to the preset heating power.

(3) The heating time and the heating power jointly regulate and control the circuit. The heating power and the single heating time of the electromagnetic induction heater can be adjusted, and correspondingly, a heating power adjusting button and a single heating time adjusting button are arranged on the machine body shell. Particularly, when the heated workpiece is too large or too small, the heating temperature of the heated workpiece can be adjusted by simultaneously adjusting the heating power and the single heating time, so that a larger temperature adjusting range is obtained. Before working, the heating power and the single heating time required for heating the heated workpiece to reach the working temperature are determined through a pre-test, then the heating power and the single heating time of the handheld battery type electromagnetic induction heater are set, the electromagnetic induction point is aligned to the heated workpiece, the heating switch is pressed, the electromagnetic induction heater can complete a heating process according to the preset heating power and the single heating time, and the handheld battery type electromagnetic induction heater has the advantages of wide adjustment range, flexibility and changeability.

6. The invention relates to a hand-held battery type electromagnetic induction heater, which can have a specific implementation form according to different heating powers and use environments, and comprises the following steps: the method can be divided into the following steps according to the form of the machine body shell: the handheld integrated heater or the handheld split heater with the handheld heating head separated from the main body; the following can be classified according to whether the electromagnetic induction coil core can be replaced: the electromagnetic induction coil iron core is non-replaceable or replaceable; in addition, the electromagnetic induction coil iron core and other structures can be made into various forms such as replaceable electromagnetic induction heating heads matched with a handheld host for use and the like. The handheld battery type electromagnetic induction heater has various forms, and is suitable for various operating environments and use purposes; the portable heating device is small in size, light in weight, convenient to move flexibly, simple and convenient to operate, particularly suitable for moving heating operation, good in convenience, wide in applicability and wide in application prospect.

7. Preferably, according to the handheld battery-powered electromagnetic induction heater of the present invention, a heating frequency counting circuit is provided in the control circuit board, and the heating frequency counting circuit is capable of recording an accumulated heating frequency of the handheld battery-powered electromagnetic induction heater. In practical application, an operator can be assisted to record the heating times, and the problem of heating omission is reduced.

8. Preferably, in the handheld battery type electromagnetic induction heater according to the present invention, the control circuit board is provided with a heating prompt circuit, and a sound or flash is given to prompt an operator that the heating operation is completed smoothly every time heating is completed. The heating accuracy can be better improved by matching the heating prompt sound or the flash with the counting of the heating counting circuit. The phenomenon of heating omission in the actual production and application process is reduced, and the production efficiency and the production quality are improved.

9. Preferably, the handheld battery type electromagnetic induction heater of the invention can be further provided with an overtemperature alarm circuit, a temperature sensor is arranged on an easily heating electromagnetic induction coil iron core or/and a control circuit board, and the like, and when the position temperature is overhigh, the overtemperature alarm circuit gives out a high-temperature alarm through prompting of sound or flash and the like to protect the electromagnetic induction heater, so that the handheld battery type electromagnetic induction heater of the invention has higher safety and durability.

Drawings

FIG. 1 is a schematic diagram of: an integrated electromagnetic induction heater structure is disclosed.

FIG. 2 is a diagram of: an appearance schematic diagram of an integrated electromagnetic induction heater.

FIG. 3 is a diagram of: an appearance schematic diagram of an integrated electromagnetic induction heater.

FIG. 4 is a diagram of: an electromagnetic induction coil iron core structure schematic diagram of an integrated electromagnetic induction heater.

FIG. 5 is a diagram of: an electromagnetic induction coil iron core structure schematic diagram of an integrated electromagnetic induction heater.

FIG. 6 is a diagram of: an appearance schematic diagram of a split type electromagnetic induction heater.

FIG. 7 is a diagram of: an exploded view of an electromagnetic induction heating handle of a split type electromagnetic induction heater.

FIG. 8 is a diagram of: a structure schematic diagram of an electromagnetic induction heating handle of a split type electromagnetic induction heater.

FIG. 9 is a schematic diagram of: a structure schematic diagram of an electromagnetic induction heating handle of a split type electromagnetic induction heater.

FIG. 10 is a schematic diagram of: a schematic diagram of an electromagnetic induction coil core structure of a split type electromagnetic induction heater.

FIG. 11 is a graph of: an appearance schematic diagram of an integrated electromagnetic induction heater capable of replacing an electromagnetic induction heating head.

FIG. 12 is a diagram of: an appearance decomposition schematic diagram of an integrated electromagnetic induction heater capable of replacing an electromagnetic induction heating head.

FIG. 13 is a graph of: an integrated electromagnetic induction heater with replaceable electromagnetic induction heating head.

FIG. 14 is a graph of: an electromagnetic induction coil iron core structure schematic diagram of an integrated electromagnetic induction heater capable of replacing an electromagnetic induction heating head.

FIG. 15 is a diagram of: an appearance schematic diagram of an integrated electromagnetic induction heater capable of replacing an electromagnetic induction coil core.

FIG. 16 is a graph of: a replaceable electromagnetic induction coil iron core type integrated electromagnetic induction heater structure sketch map.

FIG. 17 is a graph of: a replaceable electromagnetic induction coil core type integrated electromagnetic induction heater electromagnetic induction coil core structure sketch map.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The invention relates to a handheld battery type electromagnetic induction heater which can be a handheld integrated heater or a handheld split heater with a handheld heating head separated from a machine body shell and the like in various forms according to different heating powers and use environments. For a clear and complete description of the technical solution of the present invention, four representative handheld electromagnetic induction heaters with different structural shapes are taken as examples in the following, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

1. A hand-held integrated electromagnetic heater. Referring to fig. 1-5, a hand-held integrated electromagnetic heater includes: the electromagnetic induction heating device comprises an electromagnetic induction coil 1, an electromagnetic induction coil iron core 2, a display 3, a cooling fan 4, a control circuit board (not shown), a heating switch 6, a machine body shell 7, a storage battery 8 and the like. The electromagnetic induction coil 1 is a close-wound solenoid electromagnetic coil wound by a single strand of copper wire, the winding number is 10 turns, and the cross section of the solenoid formed by the electromagnetic induction coil 1 is square. Referring to fig. 4 and 5, the electromagnetic induction coil core 2 is formed by alternately spacing a rectangular insulating thin silicon steel sheet 21 having an approximate I shape and an insulating thin silicon steel sheet 22 having an approximate L shape, and the electromagnetic induction coil 1 is tightly wound around the electromagnetic induction coil core 2. The electromagnetic induction coil iron core 2 is arranged on the machine body shell 7, the machine body shell 7 is provided with a machine body handle 71, and the heating switch 6 is arranged on the machine body handle 71. The machine body shell 7 is provided with a heat dissipation vent 72, the heat dissipation fan 4 is arranged on the machine body shell 7, and the heat dissipation fan 4 can drive air to flow to dissipate heat and cool the control circuit board, the electromagnetic induction coil 1, the electromagnetic induction coil iron core 2 and the like. The display 3 is disposed on the housing 7, and the control circuit board is provided with a heating temperature adjusting circuit (not shown), in which the present embodiment adopts a technical scheme that the heating power is fixed and the heated workpiece is adjusted by the heating time. The control circuit board is provided with a main switch button 51 and adjusting buttons such as a heating temperature adjusting button 52. The control circuit board is provided with a heating frequency counting circuit (not shown), and the heating frequency can be displayed on the display. The control circuit board is provided with a heating prompting circuit (not shown), the heating prompting circuit is provided with a prompting loudspeaker 53, and the prompting loudspeaker makes a sound when heating is performed every time to prompt an operator to smoothly complete the heating.

The battery 8 is the lithium ion battery, and the battery does handheld integral type electromagnetic heater provides the electric energy, and battery 8 is connected with organism casing 7 through the slot.

The control circuit board is provided with an overheating protection circuit (not shown), the overheating protection circuit is provided with a temperature sensor 54 close to the electromagnetic induction coil iron core 2, the temperature of the electromagnetic induction coil iron core 2 and other components can be detected, when the temperature is too high, an alarm sound can be sent out through a prompt loudspeaker 53, an operator is reminded to pause heating work, and the heater is prevented from being burnt out due to the too high temperature.

The electromagnetic induction coil 1, the display 3, the cooling fan 4, the main switch button 51, the heating temperature adjusting button 52 and other adjusting buttons, the prompting loudspeaker 53, the temperature sensor 54, the heating switch 6 and the like are respectively electrically connected with the control circuit board.

2. A hand-held split type electromagnetic heater (electromagnetic induction coil iron core replaceable type). Referring to fig. 6 to 10, a handheld split type electromagnetic heater includes: electromagnetic induction heating handle and host computer. The electromagnetic induction heating handle includes: the electromagnetic induction heating device comprises an electromagnetic induction coil 1, an electromagnetic induction coil iron core 2, a handle heat radiation fan 41, a heating switch 6, a heating prompting lamp 55, a heating handle shell 73 and the like; the main body includes: a heat dissipation fan 4, a control circuit board (not shown), a display 3, a host casing 74, and the like. The electromagnetic induction coil 1 is a circular solenoid and is disposed on the heating handle housing 73. The electromagnetic induction coil core 2 is made of ferrite, and referring to fig. 10, the electromagnetic induction coil core 2 has an approximately T-shaped cross section and includes a cylindrical core main body 23 and heat-dissipating and magnetic-conducting fins 24. The electromagnetic induction coil core 2 can be inserted into the solenoid-shaped electromagnetic induction coil 1 and fixed to the heating handle case 73 by a snap fit. Referring to fig. 8 and 9, the heating handle case 73 is composed of a main handle 731 and a movable cover 732, the movable cover 732 is movably connected to the main handle 731 by a latch 75 and a hinge 76, and the electromagnetic induction coil core 2 can be replaced by opening the movable cover 732. The handle heat dissipation fan 41 is disposed on the heating handle casing 73, and dissipates heat and cools the electromagnetic induction coil 1 and the electromagnetic induction coil core 2. The heating switch 6 is provided on the heating handle case 73. The heating prompting lamp 55 is disposed outside the heating handle case 73. The electromagnetic induction coil 1, the handle heat dissipation fan 41, the heating switch 6, and the heating indicator light 55 are electrically connected to a control circuit board disposed on the host through a connecting wire 77.

The storage battery 8 is a lead-acid storage battery, the storage battery 8 is arranged on the host 74, and the storage battery 8 provides electric energy for the handheld integrated electromagnetic heater.

The host 74 is provided with a heat dissipation fan 4, and the heat dissipation fan 4 can drive air to flow to dissipate heat and cool the control circuit board and the like. The display 3 is disposed on the host 74, the control circuit board is provided with a heating temperature adjusting circuit (not shown), the present embodiment adopts a technical scheme of adjusting the heating power and the single heating time together to adjust the heating temperature, the heating temperature of the heated workpiece is adjusted by adjusting the heating power and the single heating time of the electromagnetic induction heater together, and the control circuit board is provided with adjusting buttons such as a main switch button 51 and a heating temperature adjusting button 52. The control circuit board is provided with a heating frequency counting circuit (not shown), and the heating frequency can be displayed on the display. The control circuit board is provided with a heating prompting circuit (not shown), the heating prompting circuit is provided with a prompting loudspeaker 53 and a heating prompting lamp 55, and the prompting loudspeaker 53 sounds and the heating prompting lamp 55 is lightened during heating at each time to prompt an operator to smoothly complete heating operation.

3. A hand-held integrated electromagnetic heater (replaceable electromagnetic induction heating head type). Referring to fig. 11-13, a replaceable electromagnetic induction heating head type hand-held integrated electromagnetic heater includes: the electromagnetic induction heating head and the handheld host can be replaced. The electromagnetic induction heating head includes: electromagnetic induction coil 1, electromagnetic induction coil core 2, heating head case 78, and the like. The handheld host computer includes: a heat radiation fan 4, a control circuit board (not shown), a display 3, a heating switch 6, a heating prompting lamp 55, a handheld host casing 79 and the like. The electromagnetic induction coil 1 is a circular solenoid and is arranged on the electromagnetic induction coil iron core 2, and the electromagnetic induction coil 1 is electrically connected with a control circuit board on the handheld host through a lead plug 11. Referring to fig. 14, the electromagnetic induction coil core 2 is made of a thin amorphous alloy, the electromagnetic induction coil core 2 is disposed on the heating head housing 78, and the electromagnetic induction coil core 2 is provided with radially distributed heat-dissipating and magnetic-conducting fins 24. The replaceable electromagnetic induction heating head is fixed on the handheld host through the buckle 781. The heating head shell 78 is provided with a heat dissipation vent 72, and the heat dissipation fan 4 arranged on the handheld host can dissipate heat for a control circuit board and the like on the handheld host and also can dissipate heat and cool for an electromagnetic induction coil 1, an electromagnetic induction coil iron core 2 and the like on the replaceable electromagnetic induction heating head.

The battery 8 is a lithium ion battery, the battery does the handheld integral type electromagnetic heater provides the electric energy, and the battery 8 is arranged inside a battery compartment on the handheld host casing 79.

The display 3, the heat dissipation fan 4, the heating switch 6, the heating indicator light 55, and a control circuit board (not shown) are disposed on the handheld host casing 79, and the display 3, the heat dissipation fan 4, the heating switch 6, and the heating indicator light 55 are electrically connected to the control circuit board disposed on the host. The control circuit board is provided with a heating temperature adjusting circuit (not shown), and the embodiment adopts a regulation and control mode of fixing single heating time and regulating and controlling the heating temperature by adjusting the heating power. The control circuit board is provided with a main switch button 51 and adjusting buttons such as a heating temperature adjusting button 52. The control circuit board is provided with a heating frequency counting circuit (not shown), and the heating frequency can be displayed on the display 3. The control circuit board is provided with a heating prompting circuit (not shown), the heating prompting circuit heats the prompting lamp 55, and the heating prompting lamp 55 is lightened when being heated every time to prompt an operator to smoothly complete the heating operation.

4. A hand-held integrated electromagnetic heater (electromagnetic induction coil iron core replaceable type). Referring to fig. 15-17, a hand-held integrated electromagnetic heater includes: the replaceable electromagnetic induction coil iron core 2 and the handheld host. The handheld host computer comprises: the electromagnetic induction coil 1, the electromagnetic shielding net 27, the display 3, the heat radiation fan 4, a control circuit board (not shown), the heating switch 6, the heating prompting lamp 55, the handheld host casing 79 and the like. The electromagnetic induction coil 1 is a circular solenoid and is arranged on the handheld host casing 79, and the electromagnetic induction coil 1 is electrically connected with the control circuit board. Referring to fig. 17, the electromagnetic induction coil core 2 is made of a metal soft magnetic composite material, the electromagnetic induction coil core 2 is cylindrical, the front end of the electromagnetic induction coil core is in a regular hexagonal shape, the rear end of the electromagnetic induction coil core is provided with a thread 26, and the electromagnetic induction coil core 2 can be fixed to an electromagnetic shielding net 27 through the thread 26 at the rear end.

The electromagnetic induction coil 1, the electromagnetic shielding net 27, the display 3, the heat dissipation fan 4, the heating switch 6, the heating indicator lamp 55 and the control circuit board (not shown) are arranged on the handheld host casing 79, and the electromagnetic induction coil 1, the display 3, the heat dissipation fan 4, the heating switch 6 and the heating indicator lamp 55 are electrically connected with the control circuit board arranged on the host. The control circuit board is provided with a main switch button 51 and adjusting buttons such as a heating temperature adjusting button 52. The control circuit board is provided with a heating frequency counting circuit (not shown), and the heating frequency can be displayed on the display 3. The control circuit board is provided with a heating prompting circuit (not shown), the heating prompting circuit heats the prompting lamp 55, and the heating prompting lamp 55 is lightened when being heated every time to prompt an operator to smoothly complete the heating operation.

Claims

1. A hand-held battery-operated electromagnetic induction heater comprising: the electromagnetic induction coil, the electromagnetic induction coil iron core, the cooling fan, the control circuit board, the display, the heating switch, the storage battery and the machine body shell;

the electromagnetic induction coil is a solenoid-shaped electromagnetic induction coil with the number of turns not less than 3 turns,

the electromagnetic induction coil iron core is composed of: any one or combination of silicon steel, iron-nickel alloy, amorphous alloy, nanocrystalline alloy, ferrite and metal soft magnetic composite material,

the electromagnetic induction coil iron core is arranged inside the solenoid-shaped electromagnetic induction coil,

the storage battery provides electric energy for the handheld battery type electromagnetic induction heater,

the electromagnetic induction coil is electrically connected with the control circuit board,

the heat radiation fan is electrically connected with the control circuit board,

the display is electrically connected with the control circuit board,

the heating switch is electrically connected with the control circuit board,

the storage battery is electrically connected with the control circuit board.

2. The hand-held battery-operated electromagnetic induction heater of claim 1, wherein said body housing is provided with heat dissipating vents.

3. A hand-held battery-operated electromagnetic induction heater comprising: the electromagnetic induction heating device comprises an electromagnetic induction heating handle, a storage battery, a heat dissipation fan, a control circuit board, a display and a machine body shell;

the electromagnetic induction heating handle includes: an electromagnetic induction coil, an electromagnetic induction coil iron core, a handle heat dissipation fan, a heating switch and a heating handle shell,

the electromagnetic induction coil is electrically connected with or can be electrically connected with the control circuit board,

the handle heat radiation fan is electrically connected with or can be electrically connected with the control circuit board,

the heating switch is electrically connected with or can be electrically connected with the control circuit board,

the display is electrically connected with the control circuit board,

the storage battery is electrically connected with the control circuit board.

4. A hand-held battery-operated electromagnetic induction heater according to claims 1 and 3, wherein said electromagnetic induction coil core is fixedly disposed within said solenoid-shaped electromagnetic induction coil, said electromagnetic induction coil core being non-removable and non-replaceable.

5. A hand-held battery-operated electromagnetic induction heater according to claims 1 and 3, wherein said electromagnetic induction coil core is movably disposed within said solenoid-shaped electromagnetic induction coil, said electromagnetic induction coil core being removable and replaceable.

6. The hand-held battery-operated electromagnetic induction heater of claim 3, wherein said heating handle housing and said body housing are provided with heat dissipating vents.

7. A hand-held battery-operated electromagnetic induction heater comprising: the electromagnetic induction heating device comprises a replaceable electromagnetic induction heating head, a storage battery, a heat dissipation fan, a control circuit board, a display, a heating switch and a machine body shell;

the replaceable electromagnetic induction heating head comprises: an electromagnetic induction coil, an electromagnetic induction coil iron core and a heating head shell,

the display is electrically connected with the control circuit board,

the heating switch is electrically connected with the control circuit board,

the storage battery is electrically connected with the control circuit board.

8. The handheld battery-operated electromagnetic induction heater of claim 7, wherein the replaceable electromagnetic induction heating head is connected with the machine body by any one or a combination of screws, buckles and slots.

9. The hand-held battery-operated electromagnetic induction heater of claim 7, wherein said heating head housing and said body housing are provided with heat dissipating vents.

10. A hand-held battery-operated electromagnetic induction heater as claimed in claims 1, 3 and 7, wherein said control circuit board comprises: the heating device comprises a controller main circuit, a heating temperature adjusting circuit, a heating switch circuit and a display circuit.

11. The hand-held battery type electromagnetic induction heater according to claims 1, 3, 4, 5 and 7, wherein the cross-sectional shape of the electromagnetic induction coil iron core is any one or combination of approximate L, T, J, I.