CN219697930U

CN219697930U - Internal-sparse and external-dense heating coil panel

Info

Publication number: CN219697930U
Application number: CN202223386579.9U
Authority: CN
Inventors: 曹玲玲
Original assignee: Foshan Zhengling Intelligent Technology Co ltd
Current assignee: Foshan Zhengling Intelligent Technology Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-09-15
Anticipated expiration: 2032-12-17

Abstract

The utility model discloses an inner sparse and outer dense heating coil panel which comprises a panel frame, wherein an outer winding and an inner winding are arranged on the panel frame, the outer winding and the inner winding are positioned in the same plane, the outer winding is arranged on the outer side of the inner winding in a surrounding mode, the outer winding is square, the inner winding is circular, the inner ring of the outer winding is closely arranged with the outer ring of the inner winding, the outer winding is a dense winding, and the inner winding is a sparse winding. The inner sparse and outer dense heating coil panel is beneficial to making the inner and outer temperatures of the coil panel more uniform, is beneficial to uniformly heating a heated appliance, and is beneficial to reducing the manufacturing cost.

Description

Internal-sparse and external-dense heating coil panel

Technical Field

The utility model relates to the field of electromagnetic induction heating coil panels, in particular to an inner-sparse and outer-dense heating coil panel.

Background

At present, an electromagnetic heating coil disc is arranged in an electromagnetic oven, the electromagnetic heating coil disc is generally divided into two types according to characteristics, one type is a sparse winding type in which a wire body and a wire body are wound at intervals, and the other type is a dense winding type in which the wire body and the wire body are wound closely, but the two types of coil discs have the same characteristics, namely the self temperature of a coil is higher than the temperature of a sparse winding coil in the inside, and the self temperature of the dense winding coil is higher than the temperature of the sparse winding coil under the condition of the same wire. Because the wire body of the sparse winding type coil panel is wound at intervals, the heat dissipation is better, so that the temperature of the coil is lower, but the heating quantity is smaller, and the heating efficiency is lower; because the wires are wound at intervals, the occupied space is large. The close-wound coil panel has higher heating efficiency, but has higher self temperature, and the close-wound coil panel has large wire consumption and high cost; and the heating amount is too concentrated, resulting in uneven heating. The prior art electromagnetic heating coil discs suffer from the above-described deficiencies and require improvement.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the internal-sparse and external-dense heating coil panel, which is beneficial to making the internal and external temperatures of the coil panel more uniform, is beneficial to uniformly heating a heated appliance and is beneficial to reducing the manufacturing cost.

The aim of the utility model is achieved by the following technical scheme.

The utility model discloses an inner sparse and outer dense heating coil panel which comprises a panel frame, wherein an outer winding and an inner winding are arranged on the panel frame, the outer winding and the inner winding are positioned in the same plane, the outer winding is arranged on the outer side of the inner winding in a surrounding mode, the outer winding is square, the inner winding is circular, the outer winding is dense winding, and the inner winding is sparse winding.

Preferably, a winding gap is formed by the inner ring of the outer winding and the outer ring of the inner winding, and a vent hole is formed in the tray frame and communicated with the winding gap.

Preferably, an outer winding core plate is formed on the tray frame, and an inner ring of the outer winding is sleeved outside the outer winding core plate.

Preferably, an inner winding partition plate is formed on the tray frame, a wire body guide groove is formed between adjacent inner winding partition plates, the inner winding comprises an inner winding wire body, and the inner winding wire body is adapted to be arranged in the wire body guide groove.

Preferably, the wire body guide grooves are arranged in concentric circles, radial grooves are formed in the tray frame, the inner winding is provided with an inner winding jumper portion, the inner winding jumper portion is arranged in the radial grooves, the outer winding core plate is provided with wire passing notches, and the wire passing notches are communicated with the outer ends of the radial grooves.

Preferably, four corners of the outer winding are rounded.

Preferably, the inner ring of the outer winding is arranged in contact with the outer ring of the inner winding.

Preferably, the wire body guide grooves are spirally distributed.

Compared with the prior art, the utility model has the beneficial effects that: the outer winding and the inner winding are arranged on the coil frame, the outer winding and the inner winding are located in the same plane, the outer winding is arranged on the outer side of the inner winding in a surrounding mode, the outer winding is square, the inner winding is round, the outer winding is dense winding, the inner winding is sparse winding, the inner temperature and the outer temperature of the coil panel are balanced, heating of a heated device is uniform, and manufacturing cost is reduced.

Drawings

Fig. 1 is a schematic view of the structure of the inner sparse and outer dense heating coil panel of the present utility model.

Fig. 2 is a schematic diagram of a partial structure at a in fig. 1.

Fig. 3 is a schematic perspective view of an inner sparse and outer dense heating coil panel of the present utility model.

Fig. 4 is an exploded view of the inner sparse outer dense heating coil panel of the present utility model.

Fig. 5 is a schematic perspective view of a tray of the inner sparse and outer dense heating coil tray of the present utility model.

Fig. 6 is a schematic cross-sectional structure of the inner sparse outer dense heating coil panel of the present utility model.

Fig. 7 is a schematic view of a partial structure at B of fig. 6.

Description of the reference numerals: an outer winding 1; winding gap 100; an outer winding wire body 10; an inner winding 2; an inner winding jumper section 21; a wire body gap 201; an inner winding wire body 20; a tray 3; a vent 301; an outer winding core plate 31; the line passing notch 311; an inner winding separator plate 32; a wire body guide groove 320; radial slots 321; a magnetic stripe 4.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model relates to an inner sparse outer dense heating coil panel, which is shown in fig. 1 to 7, and comprises a panel frame 3, wherein an outer winding 1 and an inner winding 2 are arranged on the panel frame 3, the outer winding 1 and the inner winding 2 are positioned in the same plane, the outer winding 1 is arranged on the outer side of the inner winding 2 in a surrounding manner, the outer winding 1 is square, the inner winding 2 is circular, the inner ring of the outer winding 1 is closely arranged with the outer ring of the inner winding 2, the outer winding 1 is a dense winding, and the inner winding 2 is a sparse winding. That is, as shown in fig. 4, the inner winding wire body 20 of the inner winding 2 is wound in a flat disc shape, and as shown in fig. 2, a wire body gap 201 is formed between the inner winding wire bodies 20 of adjacent turns of the inner winding 2; as shown in fig. 4, the outer winding wire body 10 of the outer winding 1 is wound in a flat disc shape, and, as shown in fig. 7, the outer winding wire bodies 10 of adjacent turns are disposed to be abutted against each other. The inner winding 2 and the outer winding 1 may be connected in series or in parallel. As shown in fig. 4 and 6, the bottom of the tray 3 is provided with a magnetic stripe 4.

As shown in fig. 1 and 6, since the outer winding 1 and the inner winding 2 are located in the same plane, the outer winding 1 and the inner winding 2 are both in a flat disc structure, which is beneficial to easy winding of the outer winding 1 and the inner winding 2. Because the outer winding 1 is square, the rectangular black crystal panel of the electromagnetic oven can be better adapted, the area of a non-heating area on the black crystal panel is reduced, and the area on the black crystal panel is convenient for users to fully utilize. Since the area for accommodating the inner winding 2 is small, if the inner winding 2 is also square, the inner winding wire body 20 is not easily bent at a short pitch due to the large wire diameter of the inner winding wire body 20, and therefore the inner winding 2 is circular, so that the inner winding 2 is easily wound. As shown in fig. 1 and fig. 4, since the inner ring of the outer winding 1 is closely arranged with the outer ring of the inner winding 2, specifically, the edge of the inner ring of the outer winding 1 is circumscribed on the outer ring of the inner winding 2, a larger weak magnetic field region is avoided between the outer winding 1 and the inner winding 2, which is beneficial to uniformly heating the heated appliance. Because the heating area of the inside of the heating appliance (that is to say, the middle part of the bottom of the heating appliance) is smaller, the inner winding 2 is a winding with sparse winding, so that the heating capacity of the inner winding 2 to the inside of the heating appliance is relatively weaker (specifically, the alternating magnetic field generated by switching on the high-frequency alternating current by the inner winding 2 causes the inner area of the heating appliance to generate eddy currents and generate heat), and the outer winding 1 is a winding with dense winding because the heating area of the outside of the heating appliance is larger, so that the heating capacity to the outside of the heating appliance is relatively larger, and the heating capacity of the heating appliance is more uniform and balanced inside and outside, therefore, the heating appliance is reasonably arranged. Because the inner winding 2 and the outer winding 1 form a coil structure with inner and outer sparse and dense layers, the inner and outer temperature of the coil can be more balanced, the whole coil is prevented from adopting a dense winding structure, and the total wires of the outer winding wire body 10 and the inner winding wire body 20 are correspondingly reduced, so that the manufacturing cost is correspondingly reduced.

Further, as shown in fig. 4, the inner ring of the outer winding 1 and the outer ring of the inner winding 2 enclose a winding gap 100, the winding gap 100 is located at four inner corners of the inner ring of the outer winding 1, as shown in fig. 5, a vent 301 is formed on the tray 3, as shown in fig. 1 in combination with fig. 4, the vent 301 is connected with the winding gap 100, so that a cooling fan arranged inside the induction cooker is convenient to form cooling air flow through the vent 301 and the winding gap 100, and the cooling of the heating coil tray of the utility model is facilitated.

Further, as shown in fig. 5, the bobbin 3 is formed with an outer winding core plate 31, the outer winding core plate 31 is in a shape of a fence, and as shown in fig. 1 and 7, an inner ring of the outer winding 1 is sleeved outside the outer winding core plate 31, that is, the outer winding 1 is wound outside the outer winding core plate 31, and the outer winding core plate 31 plays a role in radially supporting the outer winding 1, so that the shape of the outer winding 1 is maintained.

Further, as shown in fig. 5, the inner winding separator plates 32 are formed on the bobbin 3, as shown in fig. 7, the wire body guiding grooves 320 are formed between adjacent inner winding separator plates 32, and the inner winding 2 includes the inner winding wire body 20, as shown in fig. 1 and 7, the inner winding wire body 20 is fitted into the wire body guiding grooves 320, that is, the inner winding 2 maintains a loose winding structure by the supporting action of the inner winding separator plates 32, so that the size of the wire body gap 201 is stable, and the wire body guiding grooves 320 play a guiding role on the inner winding wire body 20 during the process of winding the inner winding 2. The tray 3 is made of plastic, and the tray 3 body and the inner winding partition plate 32 and the outer winding core plate 31 are integrally formed.

In some embodiments, as shown in fig. 1 and 2, the wire guide grooves 320 are arranged in concentric circles, that is, each circle of wire guide grooves 320 is an annular groove, and each circle of wire guide grooves 320 is arranged in concentric circles at equal intervals; as shown in fig. 5, the disk holder 3 is provided with radial grooves 321, and it is understood that the radial grooves 321 penetrate the radial grooves 321 in the radial direction of the linear body guide grooves 320. As shown in fig. 4, the inner winding 2 is formed with an inner winding jumper portion 21, as shown in fig. 1, the inner winding jumper portion 21 is disposed in the radial slot 321, as shown in fig. 5, the outer winding core plate 31 is formed with a wire passing notch 311, and the wire passing notch 311 is disposed in communication with the outer end of the radial slot 321. Thus, during the process of winding the inner winding 2, the inner winding wire body 20 may be wound from inside to outside, the inner winding wire body 20 is threaded into the wire body guiding groove 320 from inside to outside, each winding is wound one turn, the inner winding wire body 20 jumps to the adjacent outer wire body guiding groove 320 via the radial groove 321, and so on, when the inner winding wire body 20 finishes winding the inner winding 2, the inner winding wire body 20 reaches the outer side of the outer winding core plate 31 via the wire passing notch 311, the outer end of the inner winding wire body 20 is connected with the inner end of the outer winding core plate 10 into a whole, and then the outer winding wire body 10 is wound from turn to turn around the outer winding core plate 31. The structure is simple and reasonable in arrangement and convenient to wind.

Further, as shown in fig. 4, the four corners of the outer winding 1 are rounded, avoiding the need to bend the outer winding wire 10 to form sharp corners, which is advantageous in that the outer winding 1 is easy to wind.

In some embodiments, the wire guiding grooves 320 may be arranged in a spiral manner, that is, the inner winding 2 may be wound in a spiral manner.

Claims

1. An interior thick outer close heating coil dish of dredge, its characterized in that: the coil winding structure comprises a coil frame (3), wherein an outer winding (1) and an inner winding (2) are arranged on the coil frame (3), the outer winding (1) and the inner winding (2) are located in the same plane, the outer winding (1) is arranged on the outer side of the inner winding (2) in a surrounding mode, the outer winding (1) is square, the inner winding (2) is circular, the outer winding (1) is a close-wound winding, and the inner winding (2) is a sparse-wound winding;

the inner ring of the outer winding (1) and the outer ring of the inner winding (2) enclose a winding gap (100), a vent hole (301) is formed in the tray frame (3), and the vent hole (301) is communicated with the winding gap (100);

an outer winding core plate (31) is formed on the disc frame (3), and an inner ring of the outer winding (1) is sleeved outside the outer winding core plate (31);

an inner winding partition plate (32) is formed on the tray frame (3), a wire body guide groove (320) is formed between every two adjacent inner winding partition plates (32), the inner winding (2) comprises an inner winding wire body (20), and the inner winding wire body (20) is adapted to the wire body guide groove (320).

2. The inner sparse outer dense heating coil panel of claim 1, wherein: the wire body guide grooves (320) are arranged in concentric circles, radial grooves (321) are formed in the disc frame (3), inner winding jumper portions (21) are formed in the inner winding (2), the inner winding jumper portions (21) are arranged in the radial grooves (321), wire passing notches (311) are formed in the outer winding core plates (31), and the wire passing notches (311) are communicated with the outer ends of the radial grooves (321).

3. The inner sparse outer dense heating coil panel of claim 1, wherein: the wire body guide grooves (320) are spirally distributed.

4. The inner sparse outer dense heating coil panel of claim 1, wherein: four corners of the outer winding (1) are rounded.

5. The inner sparse outer dense heating coil panel of claim 1, wherein: the inner ring of the outer winding (1) is arranged in an abutting manner with the outer ring of the inner winding (2).