CN106322743B - Electromagnetic heating device - Google Patents

Abstract

The invention discloses an electromagnetic heating device, which comprises an electromagnetic conversion module and a heating module which are isolated from each other, wherein the heating module generates eddy current and heats when the electromagnetic conversion module works; the heating module includes and magnetizer and rivers passageway, rivers passageway set up in inside the magnetizer, rivers passageway includes water inlet, first passageway, two at least second passageways and a delivery port, first passageway with the water inlet intercommunication, the second passageway with first passageway intercommunication, and the second passageway with the delivery port intercommunication, rivers pass through the water inlet and get into first passageway, and pass through the second passageway flow direction the delivery port.

Description

Electromagnetic heating device

Technical Field

The invention relates to the field of electromagnetism, in particular to an electromagnetic heating device.

Background

Energy problems and environmental problems have been a major issue of social concern. With the development of science and technology and the improvement of the living standard of urban residents, the demand of clean energy is increasingly urgent. However, the combustion of the existing gas water heater can discharge a large amount of carbon dioxide, and a plurality of safety hazards exist.

Common electric water heaters include a water storage type water heater and a common electric water heater, and the water storage type water heater has large volume and low heating efficiency. The common electric water heater usually heats water through a resistance wire, and because the water heating needs a certain time, a certain amount of cold water inevitably flows out at the moment of opening the water faucet, a user generally uses water after the water temperature rises, and the phenomenon is particularly serious in a region with cold climate. The outflow of cold water not only brings inconvenience to users, but also causes a great waste of water resources.

Disclosure of Invention

In view of this, the present invention provides an electromagnetic heating device which is beneficial to avoiding water waste and can heat quickly.

The electromagnetic heating device provided by the invention comprises: the electromagnetic conversion module and the heating module are isolated from each other, and the heating module generates eddy current and generates heat when the electromagnetic conversion module works; the heating module includes and magnetizer and rivers passageway, rivers passageway set up in inside the magnetizer, rivers passageway includes water inlet, first passageway, two at least second passageways and a delivery port, first passageway with the water inlet intercommunication, the second passageway with first passageway intercommunication, and the second passageway with the delivery port intercommunication, rivers pass through the water inlet and get into first passageway, and pass through the second passageway flow direction the delivery port.

In the electromagnetic heating device provided by the invention, the number of the second channels is multiple, the second channels are arranged side by side, the same interval is formed between every two adjacent second channels, and the inner walls of the first channels and the second channels are non-smooth surfaces.

In the electromagnetic heating device provided by the invention, the water flow channel further comprises a third channel, the second channel is also communicated with the third channel, the second channel is communicated with the water outlet through the third channel, and water flow is collected in the third channel after passing through the second channel and flows to the water outlet.

In the electromagnetic heating device provided by the invention, the third channel is arranged in parallel with the first channel, and the second channel is arranged perpendicular to the first channel.

In the electromagnetic heating device provided by the invention, the joint of the first channel and the second channel and the joint of the second channel and the third channel are arc-shaped structures.

In the electromagnetic heating device provided by the invention, a plurality of convex structures or concave structures are arranged in the second channel along the water flow direction, and the convex structures and the magnetizer are integrally arranged or non-integrally arranged.

In the electromagnetic heating device provided by the invention, the convex structures are sheet-shaped, the convex structures are arranged in a parallel and staggered manner, and the projection of the convex structures in a plane vertical to the second channel is smaller than the sectional area of the second channel.

In the electromagnetic heating device provided by the invention, any two adjacent convex structures are not in the same plane and are respectively positioned at two opposite sides of the central position of the second channel.

In the electromagnetic heating device provided by the invention, the electromagnetic conversion module at least comprises a conductive coil.

In the electromagnetic heating device provided by the invention, the second channel is a curved channel, the electromagnetic heating device further comprises a plastic shell with an accommodating space, and the electromagnetic conversion module and the heating module are positioned in the accommodating space.

In the electromagnetic heating device provided by the invention, the heating module and the electromagnetic conversion module are insulated and isolated from each other, so that when the electromagnetic heating device works, the heating module generates eddy current and heats when the electromagnetic conversion module works, water and electricity are isolated, and potential safety hazards such as electric leakage of a traditional common electric water heater are further avoided. And because the first channel and the plurality of second channels are arranged in the water flow channel, when the water flow arrives, the water flow is divided to the plurality of second channels from the first channel, so that the contact area of the water flow and the magnetizer is increased, and the path and time of the water flow in the magnetizer are prolonged, so that the water flow can be rapidly heated at the moment of opening, and the waste of water resources is avoided.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural diagram of anelectromagnetic heating apparatus 10 according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural diagram of aheat generating module 12 according to a preferred embodiment of the present invention;

fig. 3 is a schematic structural diagram of a plurality ofsecond channels 1213 according to a preferred embodiment of the present invention, wherein:

FIG. 3a is a schematic front view of a plurality of thesecond channels 1213;

FIG. 3b is a schematic perspective view of one of thesecond channels 1213 of FIG. 3 a;

FIG. 3c is a schematic perspective view of asecond channel 1213 according to another preferred embodiment of the present invention;

fig. 3d is a perspective view of asecond channel 1213 according to another preferred embodiment of the present invention.

Detailed Description

The electromagnetic heating device provided by the invention is explained in detail below with reference to the specific embodiments (written description) and the attached drawings of the specification. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described in the following written description and accompanying drawings are exemplary and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "communicate," "set" and "connect" are to be interpreted broadly, e.g., as a fixed connection (set), an integral connection (set), or a removable connection; either mechanically or electrically, or internally communicating two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meanings of the above terms according to specific situations.

The working principle of the electromagnetic heating device provided by the invention is as follows: the alternating current passes through the coil to generate a magnetic field, the magnetic lines of force pass through the magnetizer and generate eddy current in the magnetizer, and the eddy current generates heat to raise the temperature of the liquid flowing through the magnetizer, thereby achieving the purpose of heating.

As shown in fig. 1, which is a schematic structural diagram of anelectromagnetic heating device 10 according to a preferred embodiment of the present invention, theelectromagnetic heating device 10 includes anelectromagnetic conversion module 11, aheat generating module 12, and ahousing 13. Theelectromagnetic conversion module 11 and theheating module 12 are arranged in an isolated manner, theheating module 12 generates eddy current and generates heat when theelectromagnetic conversion module 11 works, thehousing 13 has an accommodating space, and theelectromagnetic conversion module 11 and theheating module 12 are located in the accommodating space.

Theelectromagnetic conversion module 11 is configured to provide a magnetic field for the heating module, and at least includes an electrically conductive coil (not shown in the figure), in general, theelectromagnetic conversion module 11 is configured to be externally connected to a power supply (ac), and the electrically conductive coil generates a magnetic field when being powered on, so that theheating module 12 generates an eddy current in the magnetic field. In addition, in order to make the magnetic field intensity generated by the coil sufficiently large, a rectifying and filtering circuit and a frequency conversion circuit are also arranged between the conductive coil and the power supply in the embodiment, so that the alternating current in the conductive coil has high frequency and high efficiency.

Fig. 2 is a schematic structural diagram of aheat generating module 12 according to a preferred embodiment of the present invention. Theheat generating module 12 includes amagnetizer 120 and awater flow passage 121, and thewater flow passage 121 is disposed inside themagnetizer 120. Thewater flow passage 121 includes awater inlet 1211, afirst passage 1212, at least twosecond passages 1213 and awater outlet 1215, thefirst passage 1212 communicates with the water inlet, thesecond passage 1213 communicates with thefirst passage 1212, and thesecond passage 1213 communicates with thewater outlet 1215, and water flows into thefirst passage 1212 through thewater inlet 1211 and flows to thewater outlet 1215 through thesecond passage 1213.

Preferably, the number of thesecond channels 1213 is multiple, and the multiplesecond channels 1213 are arranged side by side, and two adjacentsecond channels 1213 have the same distance therebetween. Thesecond channels 1213 divide the water flow from thefirst channel 1212 into several parts to increase the contact area of the water flow with themagnetizer 120, increase the heat transfer effect, and thus increase the heating speed of the water. In addition, the inner walls of thefirst channel 1212 and thesecond channel 1213 are non-smooth surfaces, thereby increasing the residence time of the water flow in the pipe, which further contributes to the improvement of the thermal efficiency.

The water flow channel further comprises athird channel 1214, thefirst channel 1212 is communicated with thefirst channel 1214, and is also communicated with thethird channel 1214, thesecond channel 1213 is communicated with thewater outlet 1215 through thethird channel 1214, and water flows through thesecond channel 1213, then is collected in thethird channel 1214 and flows to thewater outlet 1215. Thethird channel 1214 is disposed in parallel with thefirst channel 1212, and thesecond channel 1213 is disposed perpendicular to thefirst channel 1212. In other embodiments, the first, second, and third channels may be arranged in other ways (non-parallel, non-perpendicular), and even in some embodiments, the first and third channels may not be present.

Preferably, in order to make the water flow smoother and the contact area with the magnetizer is larger, the joint of the first channel and the second channel and the joint of the second channel and the third channel are set to be arc-shaped structures.

In order to further increase the contact area of the water flow with themagnetizer 120, a plurality of convex structures or concave structures may be disposed in thesecond passage 1213 along the water flow direction. The protruding structure and themagnetizer 120 are integrally disposed or non-integrally disposed. The protruding structure is made of the same material as themagnetizer 120. When the protruding structure is not integrated with themagnetizer 120, the protruding structure may be separated from or engaged with themagnetizer 120.

As shown in fig. 3, it is a schematic structural diagram of a plurality ofsecond channels 1213 according to a preferred embodiment of the present invention, wherein fig. 3a is a schematic front view of the plurality ofsecond channels 1213, fig. 3b is a schematic perspective view of one of thesecond channels 1213 in fig. 3a, and fig. 3c is a schematic perspective view of asecond channel 1213 according to another preferred embodiment of the present invention.

As shown in fig. 3a, 3b, and 3c, thesecond channel 1213 has a plurality of the protrudingstructures 23 therein, thesecond channel 1213 has a rectangular parallelepiped or cylindrical shape, the protrudingstructures 23 have a sheet shape, the plurality of the protrudingstructures 23 are arranged in a parallel staggered manner, and a projection of the protrudingstructures 23 in a plane perpendicular to thesecond channel 1213 is smaller than a cross-sectional area of thesecond channel 1213. Any two adjacent raisedstructures 23 are not in the same plane and are located on opposite sides of the center of thesecond channel 1213. The arrows in the figure indicate the direction of water flow. Thesecond channel 1213 of this embodiment is arranged to increase the residence time and path of the water flow in themagnetizer 120, so that the water flow passes through thewater outlet 1215 to be the hot water required by the user.

As shown in fig. 3d, which is a schematic perspective view of asecond channel 1213 according to another preferred embodiment of the present invention, thesecond channel 1213 has a plurality of the protrudingstructures 23 therein, the protrudingstructures 23 are three-dimensional, thesecond channel 1213 is cylindrical, in other embodiments, the second channel may be configured in other shapes, such as a rhombus, an elliptic cylinder, or a curved channel, and the protruding structures may also be configured in other structures.

In addition, in the present embodiment, themagnetizer 120 may be a superconducting magnet, and the heating efficiency may be further improved. Thehousing 13 is a plastic housing, which can reduce the overall weight and cost of the electromagnetic heating device 100 and enhance the insulation and isolation grade.

In theelectromagnetic heating device 10 provided by the invention, theheating module 12 and theelectromagnetic conversion module 11 are insulated and isolated from each other, so that when theelectromagnetic heating device 10 works, theheating module 12 generates eddy current and heats when the electromagnetic conversion module works, water and electricity are isolated, and potential safety hazards such as electric leakage of a traditional instant heating type heater are further avoided. Because thewater flow channel 121 is provided with thefirst channel 1212 and the plurality ofsecond channels 1213, when the water flow arrives, the water flow is branched 1212 from the first channel to the plurality ofsecond channels 1213, so that the contact area of the water flow and themagnetizer 120 is increased, and the path and time of the water flow in themagnetizer 120 are prolonged, so that the water flow can be rapidly heated at the moment of opening, and the waste of water resources is avoided.

The above-mentioned preferred embodiments of the electromagnetic heating device provided by the present invention should not be understood as limiting the scope of the claims of the present invention, and those skilled in the art should understand that various modifications or substitutions can be made without departing from the spirit of the present invention, and all such modifications or substitutions should be considered to be within the scope of the claims of the present invention, i.e., the scope of the claims of the present invention should be determined by the claims.

Claims (4)

1. An electromagnetic heating device, comprising:

the electromagnetic conversion module and the heating module are isolated and insulated from each other, and the heating module generates eddy current and generates heat when the electromagnetic conversion module works; the electromagnetic conversion module at least comprises a conductive coil; the electromagnetic conversion module and the heating module are positioned in the accommodating space of the shell in a partitioning manner;

the heating module comprises a magnetizer and a water flow channel, the water flow channel is arranged inside the magnetizer and comprises a water inlet, at least two second channels and a water outlet, the second channels are communicated with the water inlet and the water outlet, and water flows into the second channels through the water inlet respectively and flows to the water outlet;

the water flow channel also comprises a first channel which is communicated with the water inlet and one end of the plurality of second channels, and water flows into the first channel through the water inlet and then respectively flows into the plurality of second channels in a shunting manner;

the number of the second channels is multiple, the second channels are arranged side by side, the same interval is formed between every two adjacent second channels, and the inner walls of the second channels are non-smooth surfaces;

the water flow channel also comprises a third channel, the other ends of the second channels are communicated with the third channel, the second channels are communicated with the water outlet through the third channel, and water flows through the second channels, then is collected in the third channel and flows to the water outlet;

a plurality of protruding structures are arranged in the second channel along the water flow direction, and the protruding structures and the magnetizer are integrally arranged or not integrally arranged;

the protruding structures are in a sheet shape and are arranged in a parallel and staggered mode, projections of the protruding structures in the plane perpendicular to the second channel are smaller than the sectional area of the second channel, any two adjacent protruding structures are not in the same plane and are located on two opposite sides of the center position of the second channel respectively.

2. The electromagnetic heating apparatus according to claim 1, wherein: the third channel is arranged in parallel with the first channel, and the second channel is arranged perpendicular to the first channel.

3. The electromagnetic heating apparatus according to claim 1, wherein: the joint of the first channel and the second channel and the joint of the second channel and the third channel are arc-shaped structures.

4. The electromagnetic heating device of claim 1, wherein the second channel is a curvilinear channel, and further comprising a plastic housing having a receiving space.

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