CN207053830U - Radiation-proof heating wire coil and electromagnetic heating device adopting same - Google Patents

Abstract

The utility model discloses a radiation-proof heating wire coil, which comprises a wire coil main body; the wire coil main body comprises a heating coil group and a shielding coil group, and the shielding coil group consists of more than two coils; the current direction of at least one coil in the shielding coil group is opposite to that of the other coil. Therefore, magnetic lines of force generated by the two groups of coils with opposite current directions can be mutually offset, at the moment, the two groups of coils are equivalent to a metal ring, the effect of shielding a magnetic field is achieved, the metal ring or a metal shell does not need to be additionally arranged on the wire coil main body, the production cost can be reduced, electromagnetic radiation can be prevented, meanwhile, a user can be prevented from being scalded, and the use safety is ensured. The utility model also discloses an electromagnetic heating device, including a support and foretell radiation protection heating drum. Not only can reduce the production cost, but also can reduce the electromagnetic radiation, and simultaneously can avoid the user from being scalded.

Description

A kind of radiation proof heating spool rest and the electromagnetic heater using this drum

Technical field

The utility model is related to Electromagnetic Heating field, particularly it is a kind of can radiation proof heating spool rest and using this drum Electromagnetic heater.

Background technology

Now it is applied to electromagnetic oven, Electromagnetic Heating electric pot on the market, the electromagnetic heater of electromagnetic heating electric rice cooker is general Using following structure：Including a support, wire coil main body is provided with the support, magnetic field can be produced when wire coil main body is powered, Pan absorbs most of magnetic line of force heating, and few a part of magnetic line of force then outwards can be distributed and be leaked in air, form electromagnetism spoke Penetrate, influence the health of people.

In order to reduce electromagnetic radiation, existing technology, which is typically employed in, is provided with energy armoured magnetic field around wire coil main body Quoit, generally use aluminium ring, its assembly technology is complicated, and cutting cost is higher.

In order to reach the purpose of armoured magnetic field, some electromagnetic heaters are even shielded using metal shell cover patchboard The magnetic line of force, but metal shell, easily heating, the temperature of metal shell can be more than 80 degree when heating up, therefore user has quilt The risk of scald.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a kind of simple in construction, can not only reduce life Cost, and safety are produced, while can be with the heating spool rest of radiation proof, it is low also to provide a kind of production cost, safe to use, simultaneously Can be with the electromagnetic heater of radiation proof.

The utility model is to solve the technical scheme that uses of its technical problem：

A kind of radiation proof heating spool rest, including,

Wire coil main body, the wire coil main body are formed by wire coiling；

The wire coil main body includes heat coil group and shield coil set, and the shield coil set is wound in the line with heating function The periphery of circle group, the shield coil set are made up of the coil of the two circle above；

Wherein, at least sense of current of the sense of current of a turn coil and an other turn coil in the shield coil set Conversely.

As the improvement of above-mentioned technical proposal, the shield coil set is formed by a wire coiling, the shield coil set In at least direction of winding of a turn coil it is opposite with the direction of winding of an other turn coil.

As the further improvement of above-mentioned technical proposal, the wire circle of the shield coil set is even number, wherein having one The sense of current of half coil is opposite with the sense of current of the coil of other half.

Wherein, gap between the heat coil group and shield coil set be present, the gap is 5-20mm.

Preferably, the gap is 7-12mm.

Further, the profile of the wire coil main body is flat disk-shaped or recessed plate-like.

Further, the bottom of the heat coil group and/or shield coil set is provided with magnetic stripe.

A kind of electromagnetic heater, including：

Support；

A kind of above-mentioned radiation proof heating spool rest is configured with the support.

The beneficial effects of the utility model are：Due to heating spool rest of the present utility model by by wire coil main body be arranged to by Heat coil group and shield coil set are formed, and in the shield coil set at least the sense of current of a turn coil with it is another The sense of current of an outer turn coil is on the contrary, when therefore heating spool rest of the present utility model is powered, at least two in shield coil set The sense of current of turn coil is on the contrary, the direction in magnetic field also can be on the contrary, therefore caused by the two turn coils energization of the sense of current conversely The magnetic line of force caused by the opposite coil of two groups of senses of current can then repeal by implication, and now two groups of opposite coils of the sense of current are suitable In a becket, play a part of armoured magnetic field, without additionally setting becket or metal shell in wire coil main body, Both production cost can be reduced, and electromagnetic radiation can be prevented, while user can also be avoided to be burned, is ensured using peace Entirely；

Electromagnetic heater of the present utility model can both reduce production cost by using above-mentioned heating spool rest, and And electromagnetic radiation can be reduced, while user can be avoided to be burned.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is the surface structure schematic diagram of wire coil main body in the preferred embodiment of the utility model one；

Fig. 2 is the surface structure schematic diagram of electromagnetic heater in the preferred embodiment of the utility model one.

Embodiment

(the coiling direction of the direction expression wire of arrow in figure) referring to Figures 1 and 2, a kind of radiation proof heating spool rest, bag A wire coil main body 10 formed by wire coiling is included, herein, the profile of the wire coil main body 10 is flat disk-shaped or recessed plate-like, when So the shape of above-mentioned wire coil main body 10 may be arranged as other shapes and be not limited to above-mentioned shape.It is new as this practicality One preferred embodiment of type, the wire coil main body 10 include heat coil group 11 and shield coil set 12, the shield coil set 12 are wound in the periphery of the heat coil group 11, and the shield coil set 12 is made up of the coil of the two circle above, wherein, institute The sense of current of at least sense of current of a turn coil and an other turn coil is stated in shield coil set 12 on the contrary, herein, For the ease of description, the coil that electric current in shield coil set 12 flows toward a direction is defined as forward flow coil 121, will The sense of current coil opposite with the sense of current in the forward flow coil 121 is defined as reverse flow in shielded coil 12 Coil 122.

Due at least electric current side of the sense of current of a turn coil and an other turn coil in the shield coil set 12 To on the contrary, comprising at least a forward flow coil 121 and a reverse flow coil 122 in i.e. described shield coil set 12.When this When the heating spool rest of utility model is powered, forward flow coil 121 and the electric current of reverse flow coil 122 in shield coil set 12 In the opposite direction, thus forward flow coil 121 and reverse flow coil 122 be powered caused by the direction in magnetic field also can be on the contrary, institute The magnetic line of force caused by stating forward flow coil 121 and reverse flow coil 122 can then repeal by implication, now forward flow coil 121 and equivalent to one becket of reverse flow coil 122, play a part of armoured magnetic field, without in wire coil main body 10 It is upper extra that becket or metal shell are set, production cost can be both reduced, and electromagnetic radiation can be prevented, while can be with Avoid user from being burned, ensure safe to use.

Herein, manufacturing for the ease of wire coil main body 10 of the present utility model, it is preferable that wire coil main body 10 is by one Root wire coiling is formed, and then the shield coil set 12 is also formed by a wire coiling, in the shield coil set 12 at least There is the direction of winding of a turn coil opposite with the direction of winding of an other turn coil.I.e. the wire coiling forms the heat coil The forward flow coil 121 is formed toward a direction coiling again after group 11, afterwards the wire oppositely wound reverse flow again Coil 122, so as to obtain described shield coil set 12.By using above-mentioned structure, the wire coil main body 10 both it had been easy to Manufacture, while the function of armoured magnetic field can be realized.

Certainly above-mentioned forward flow coil 121 and the direction of winding of reverse flow coil 122 can also be identical, now, Only need forward flow coil 121 and reverse flow coil 122 being arranged to two groups of separate coils, therefore, can So that forward flow coil 121 and reverse flow coil 122 are accessed in different circuits, so as to realize forward flow coil 121 It is different with the sense of current in reverse flow coil 122.

Reference picture 1, in order that the radiation-proof effect for obtaining heating spool rest of the present utility model is more preferable, it is preferable that the shielding The wire circle of coil group 12 is even number, the sense of current of the sense of current of the coil of half of which and the coil of other half On the contrary, the coil for having half in i.e. described shield coil set 12 is forward flow coil 121, second half coil is reverse flow Coil 122, further preferably, the sense of current identical coil in the shield coil set 12 are close together, i.e., described screen The forward flow coil 121 covered in coil group 12 is closely packed together, and reverse flow coil 122 is also closely packed together, i.e., first in institute The periphery for stating heating coil group 11 winds the forward flow coil 121 or reverse flow coil 122, winds again afterwards reversely Flow coil 122 or forward flow coil 121.Certainly above-mentioned forward flow coil 121 and reverse flow coil 122 is handed over successively For apart windings in the periphery of the heat coil group 11.

In the utility model, for the ease of manufacturing for heating coil disc, while the shadow of shield coil set 12 is avoided Ring the heat coil group 11, it is preferable that gap, the gap be present between the heat coil group 11 and shield coil set 12 For 5-20mm.Further preferably, the gap is 7-12mm.

For the ease of adjusting the change of magnetic field strength of heating spool rest of the present utility model, it is preferable that the heat coil group 11 and/or the bottom of shield coil set 12 be provided with magnetic stripe.Therefore, as needed, user can in heat coil group 11 and/or The bottom of shield coil set 12 sets magnetic stripe, and then changes the magnetic field intensity of heat coil group 11 and/or shield coil set 12.

Referring to Figures 1 and 2, a kind of electromagnetic heater, including a support 20 and above-mentioned radiation proof heating spool rest, i.e., Above-mentioned radiation proof heating spool rest is arranged on the support 20.

Preferred embodiments of the present utility model are the foregoing is only, as long as realizing the utility model with essentially identical means The technical scheme of purpose is belonged within the scope of protection of the utility model.

Claims (8)

1. a kind of radiation proof heating spool rest, including,

Wire coil main body (10), the wire coil main body (10) are formed by wire coiling；

It is characterized in that：

The wire coil main body (10) includes heat coil group (11) and shield coil set (12), shield coil set (12) winding In the periphery of the heat coil group (11), the shield coil set (12) is made up of the coil of the two circle above；

Wherein, at least sense of current of the sense of current of a turn coil and an other turn coil in the shield coil set (12) Conversely.

A kind of 2. radiation proof heating spool rest according to claim 1, it is characterised in that：

The shield coil set (12) is formed by a wire coiling, in the shield coil set (12) an at least turn coil around Line direction is opposite with the direction of winding of an other turn coil.

A kind of 3. radiation proof heating spool rest according to claim 1 or 2, it is characterised in that：

The wire circle of the shield coil set (12) is even number, the sense of current of the coil of half of which and other half The sense of current of coil is opposite.

A kind of 4. radiation proof heating spool rest according to claim 1, it is characterised in that：

Gap between the heat coil group (11) and shield coil set (12) be present, the gap is 5-20mm.

A kind of 5. radiation proof heating spool rest according to claim 4, it is characterised in that：

The gap is 7-12mm.

A kind of 6. radiation proof heating spool rest according to claim 1, it is characterised in that：

The profile of the wire coil main body (10) is flat disk-shaped or recessed plate-like.

A kind of 7. radiation proof heating spool rest according to claim 1, it is characterised in that：

The bottom of the heat coil group (11) and/or shield coil set (12) is provided with magnetic stripe.

8. a kind of electromagnetic heater, including：

Support (20)；

Characterized in that,

A kind of radiation proof heating spool rest described in any one of claim 1-7 claim is configured with the support (20).