CN217357023U

CN217357023U - Electromagnetic induction heating block adopting planar coil

Info

Publication number: CN217357023U
Application number: CN202221137540.0U
Authority: CN
Inventors: 徐炎正; 王占领; 徐峰; 杨波; 姜雪枫; 徐洋; 顾学杰
Original assignee: Zhejiang Juhe Electric Co ltd
Current assignee: Zhejiang Juhe Electric Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-09-02
Anticipated expiration: 2032-05-11

Abstract

The utility model belongs to the technical field of the technique of generating heat and specifically relates to an adopt electromagnetic induction heating piece of planar coil, including planar coil, interior casing, circuit board and heat-generating body, planar coil sets up inside interior casing, sets up the heat-generating body on the interior casing that at least one surface of planar coil corresponds, the heat-generating body is used for producing with the magnetic induction line effect that planar coil circular telegram back produced and carries out the heat exchange with air on every side, the circuit board is connected with planar coil, and the circuit board is used for connecting the power and provides high frequency alternating current for planar coil. The utility model provides an adopt electromagnetic induction heating block of plane coil utilizes the alternating magnetic field that plane coil produced to heat the heat-generating body, and the inside of casing including the plane coil is then sealed has good insulating nature, avoids conductive parts to expose, promotes the safety in utilization.

Description

Electromagnetic induction heating block adopting planar coil

Technical Field

The utility model belongs to the technical field of the technique that generates heat and specifically relates to an adopt planar coil's electromagnetic induction heating piece.

Background

At present, in the industry of warm air blowers, heating parts of the warm air blowers basically adopt PTC heating bodies, the PTC heating bodies can generate heat after being electrified, and the heat is taken away by utilizing air flow generated by the fans, so that warm air output is realized.

As the Chinese utility model patent: cn202121982504.x, a warm air blower, which uses a PTC heater for heating. However, since this heating structure requires the PTC heating element to be energized, the PTC heating element has a current, and thus a safety accident is likely to occur during use. In addition, the heating mode has low heating efficiency and high energy consumption.

Meanwhile, the PTC heating element has the characteristic of heating attenuation, and after the PTC heating element is used for a long time, the heating efficiency of the PTC heating element is seriously attenuated, so that the heating capacity is influenced. In addition, the heating value of the PTC heating elements can be adjusted only by the number of the PTC heating elements, and random stepless adjustment cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technique not enough and provide an electromagnetic induction heating block who adopts planar coil, thereby can effectively realize the non-conducting promotion safety in utilization of heating element.

The utility model discloses an adopt plane coil's electromagnetic induction heating piece, including plane coil, interior casing, heat-generating body and circuit board, plane coil sets up inside interior casing, sets up the heat-generating body on the interior casing that at least one surface of plane coil corresponds, the heat-generating body is used for generating heat and carries out the heat exchange with air on every side with the magnetic induction line effect that produces behind the circular telegram of plane coil, circuit board and plane coil connection, circuit board are used for connecting the power and provide alternating current for plane coil. The heating body is made of metal magnetic conductive materials such as iron materials, aluminum materials, stainless steel materials and the like.

According to the technical scheme, the inner shell is arranged on the outer portion of the planar coil in a wrapping mode, the inner shell is made of the insulating material, the wiring end of the planar coil penetrates through the inner shell to extend to the outside and is connected with the circuit board, and the heating body is arranged on the outer portion of the inner shell. The heating element may be provided on the outer surface of the inner case corresponding to both surfaces of the planar coil, or may be provided on only the outer surface of the inner case corresponding to one surface of the planar coil. The circuit board provides high-frequency alternating current for the planar coil, produces alternating magnetic field after the planar coil lets in high-frequency alternating current, thereby the heating element generates heat in the heating element when the magnetic induction line in magnetic field passes through the heating element in the scope that the magnetic field covered. When the warm air blower is used on a warm air blower, airflow can be generated under the action of the warm air blower, the airflow is contacted with the heating body when flowing through, heat exchange is carried out between the heating body and the air, the airflow is heated, and the warm air blower outputs hot air. In the heating process, only the planar coil is conductive, and the planar coil is sealed by the inner shell, so that the conductive part is not exposed, and the using process of the heating block is safer.

Still include the shell body, the shell body is the loop configuration, plane coil, interior casing and heat-generating body set up inside the shell body, are provided with airflow channel between shell body and heat-generating body and/or on the heat-generating body. Through the setting of shell body, can fix inside casing, plane coil and heat-generating body, its wholeness is better. Meanwhile, an airflow channel is formed in the heating device, airflow can flow through the airflow channel, the flowing process can be better contacted with the heating body, and heat exchange is more sufficient.

The magnetic shielding device comprises a shell, a magnet and a planar coil, wherein the shell is provided with an outer shell, the magnet is arranged on the outer shell in an annular shape, and the magnet is used for shielding magnetic induction lines generated by the planar coil in an annular range formed by the magnet. Utilize the magnet on the shell body, can shield the magnetic induction line that the plane coil produced in the magnet scope, so the magnetic induction line only can be used in the heat-generating body and produce the heat, other parts of the electric fan heater of outside assembly of shell body etc. all can not generate heat, so the safety in utilization also further promotes. The magnetic induction lines are shielded in the annular range formed by the magnets, namely, the magnetic induction lines are shielded by the magnets in the outward diffusion process to avoid outward diffusion, and the magnetic induction lines can normally diffuse in the annular range formed by the magnets.

The heating body at least comprises a plane body, fins for heat dissipation are arranged on the plane body, and airflow channels are formed between adjacent fins on the plane body. The plane body can be attached to the inner shell outside the plane coil, so that the action area of the plane body and the magnetic induction line is larger, the heat productivity on the plane body is more, the design of the fins can transfer the heat on the plane body to the fins, and air flow channels are formed between the magnetic sheets, so that the contact surface between the fins and the air flow is large, the heat transfer is better, and the air heating efficiency is high.

The planar coil can be one coil or formed by arranging a plurality of coils, and the plurality of coils can be connected in series or in parallel.

The heating body may have a structure in which: the heat conducting fins are arranged on the inner shell at intervals through the support, and airflow channels are formed among the heat conducting fins. The heating elements are a plurality of plane plates which are obliquely arranged at intervals relative to the plane coil. The arrangement of the heat conducting fins is a V-shaped structure or a flat plate structure which is arranged obliquely, so that the contact area between the air flow and the heat conducting fins can be increased effectively when the air flow passes through the heat conducting fins, and the heat exchange efficiency is improved.

The opening directions of the heat conducting fins of the V-shaped structure are consistent. Under the normal condition, the conducting strip opening is towards air-out one side, and the air current channel's of air inlet end area is great promptly, and the air current channel's of air-out end area is less, can ensure that the air current is smooth and easy to move relatively, increases the velocity of flow.

The utility model provides an adopt electromagnetic induction heating block of planar coil utilizes the magnetic induction line that planar coil produced to heat the heat-generating body, and planar coil then is sealed including the inside of casing, has good insulating nature, avoids conductive parts to expose, promotes the safety in utilization, and the efficiency of generating heat can reach more than 90%.

The utility model provides an adopt planar coil's electromagnetic induction heating piece, it can adjust the frequency of the high frequency current of input planar coil through the circuit board to the realization is to the regulation of heat-generating body heating power, and can be for electrodeless regulation. Meanwhile, electromagnetic heating is adopted, so that the attenuation condition can not occur in the long-time use process, and the use performance is better.

Drawings

Fig. 1 is an explosion structure diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a schematic cross-sectional view of embodiment 2 of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

as shown in fig. 1, the utility model discloses an adopt planar coil's electromagnetic induction heating piece, including planar coil 1, interior casing 2, heat-generating body 3 and circuit board, inside casing 2 including planar coil 1 sets up, set up heat-generating body 3 on the interior casing 2 that at least one surface of planar coil 1 corresponds, heat-generating body 3 is used for generating heat and carries out the heat exchange with air on every side with the magnetic induction line effect that produces behind the circular telegram of planar coil 1, the circuit board is connected with planar coil 1, and the circuit board is used for connecting the power and provides alternating current for planar coil 1. The heating element 3 is made of metal such as iron material, aluminum material, stainless steel material, etc.

According to the technical scheme, the inner shell 2 is arranged outside the planar coil 1 in a coated mode, the inner shell 2 is made of insulating materials, the wiring end of the planar coil 1 penetrates through the inner shell 2 to extend to the outside and be connected with the circuit board, and the heating body 3 is arranged outside the inner shell 2. The heating element 3 may be provided on the outer surface of the inner case 2 corresponding to both surfaces of the planar coil 1, or may be provided on the outer surface of the inner case 2 corresponding to only one surface of the planar coil 1. The circuit board provides high-frequency alternating current for planar coil 1, produces alternating magnetic field after planar coil 1 lets in high-frequency alternating current, thereby heating body 3 generates heat in the heating body 3 when the magnetic induction line in magnetic field passes through heating body 3 in the scope that heating body 3 covered, magnetic field. When the warm air blower is used on a warm air blower, airflow can be generated under the action of the fan, the airflow contacts the heating body 3 when flowing through, heat exchange is carried out between the heating body 3 and air, the airflow is heated, and the warm air blower outputs hot air. In the heating process, only the planar coil 1 is conductive, and the planar coil 1 is sealed by the inner shell 2, so that the conductive part cannot be exposed, and the use process of the heating block is safer.

Still include shell body 4, shell body 4 is the loop configuration, inside planar coil 1, interior casing 2 and the setting of heat-generating body 3 were provided with airflow channel 33 on the heat-generating body 3 in shell body 4. Through the setting of shell body 4, can fix inside casing 2, planar coil 1 and heating body 3, its wholeness is better. Meanwhile, an airflow channel 33 is formed in the heating body, airflow can flow through the airflow channel 33, the flowing process can be better contacted with the heating body 3, and heat exchange is more sufficient.

A magnet 5 is arranged on the outer shell 4, the magnet 5 is arranged on the outer shell 4 in a ring shape, and the magnet 5 is used for shielding the magnetic induction lines generated by the planar coil 1 in the ring-shaped range formed by the magnet 5. The magnet 5 on the outer shell 4 can shield the magnetic induction line generated by the planar coil 1 in the range of the magnet 5, so that the magnetic induction line can only act on the heating body 3 to generate heat, other parts of the warm air blower assembled outside the outer shell 4 and the like can not generate heat, and the use safety is further improved. Wherein, the shielding of the magnetic induction lines in the annular range formed by the magnet 5 means that the magnet 5 shields the magnetic induction lines to prevent the magnetic induction lines from diffusing outwards in the process of diffusing the magnetic induction lines outwards, and the magnetic induction lines can normally diffuse in the annular range formed by the magnet 5.

The heating element 3 comprises two plane bodies 31, fins 32 for heat dissipation are arranged on the plane bodies 31, and an airflow channel 33 is formed between the adjacent fins 32 on the plane bodies 31. The planar body 31 can be attached to the inner shell 2 outside the planar coil 1, so that the acting area of the planar body 31 and the magnetic induction lines is larger, the heat generated on the planar body 31 is larger, the fins 32 can transfer the heat on the planar body 31 to the fins 32 due to the design of the fins 32, and the air flow channels 33 are formed among the magnetic sheets, so that the contact surface between the fins 32 and the air flow is larger, the heat transfer is better, and the air heating efficiency is high.

The planar coil 1 may be one coil or may be formed by arranging a plurality of coils, and the plurality of coils may be connected in series or in parallel.

Example 2:

as shown in fig. 2 and fig. 3, the utility model discloses an electromagnetic induction heating block using planar coil, which is different from embodiment 1 in that: the heating element 3 may have a structure in which: the heat-conducting fins comprise a plurality of V-shaped structures, the heat-conducting fins are arranged on the inner shell 2 at intervals through the support, and air flow channels are formed among the heat-conducting fins. The arrangement of the heat conducting fins is of a V-shaped structure, so that the contact area between the air flow and the heat conducting fins is increased when the air flow passes through the heat conducting fins, and the heat exchange efficiency is improved.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate medium, or may be an interaction relationship between the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. An electromagnetic induction heating block adopting a planar coil is characterized in that: including plane coil, interior casing, heat-generating body and circuit board, plane coil sets up inside interior casing, sets up the heat-generating body on the interior casing that at least one surface of plane coil corresponds, the heat-generating body is used for producing after the circular telegram with plane coil and magnetic induction line effect generates heat and carries out the heat exchange with air on every side, the circuit board is connected with plane coil, and the circuit board is used for connecting the power and provides alternating current for plane coil.

2. The electromagnetic induction heating block using the planar coil as set forth in claim 1, wherein: still include the shell body, the shell body is the loop configuration, plane coil, interior casing and heat-generating body set up inside the shell body, are provided with airflow channel between shell body and heat-generating body and/or on the heat-generating body.

3. The electromagnetic induction heating block using the planar coil as set forth in claim 2, wherein: the magnetic shielding device comprises a shell, a magnet and a planar coil, wherein the shell is provided with an outer shell, the magnet is arranged on the outer shell in an annular shape, and the magnet is used for shielding magnetic induction lines generated by the planar coil in an annular range formed by the magnet.

4. An electromagnetic induction heating block using a planar coil as claimed in claim 1, 2 or 3, wherein: the heating body at least comprises a plane body, fins for heat dissipation are arranged on the plane body, and airflow channels are formed between adjacent fins on the plane body.

5. An electromagnetic induction heating block using a planar coil as claimed in claim 1, 2 or 3, wherein: the structure of the heating body is as follows: the heat conducting fins are arranged on the inner shell at intervals through the support, and airflow channels are formed among the heat conducting fins.

6. The electromagnetic induction heating block using the planar coil as set forth in claim 5, wherein: the opening directions of the heat conducting fins of the V-shaped structure are consistent.

7. An electromagnetic induction heating block using a planar coil as claimed in claim 1, 2 or 3, wherein: the heating body is a plurality of plane plates which are arranged at intervals in an inclined way relative to the plane coil.