INDUCTION HEATING DEVICE AND SYSTEM

Abstract

An induction heating device (1) comprising an electromagnetic coil (2) connectable to a power supply (3). The electromagnetic coil (2) comprises a coil protection insert (4). The coil protection insert (4) protrudes from a first side (5) of the coil (2) towards a surface (6) of a work piece (7) to be heated by the induction heating device (1) when the induction heating device (1) is used for heating the work piece (7). The coil protection insert (4) preventing contact between the coil (2) and the surface (6) of the work piece (7).

Claims

1. An induction heating device (1) comprising an electromagnetic coil (2) connectable to a power supply (3), characterised in that the electromagnetic coil (2) comprises a coil protection insert (4), wherein the coil protection insert (4) protrudes from a first side (5) of the coil (2) towards a surface (6) of a work piece (7) to be heated by the induction heating device (1) when the induction heating device (1) is used for heating the work piece (7), the coil protection insert (4) preventing contact between the coil (2) and the surface (6) of the work piece (7).

2. An induction heating device (1) according to claim 1, wherein the coil protection insert (4) is arranged in a coil protection insert recess (13) of the coil (2).

3. An induction heating device (1) according to any of the claim 1 or 2, wherein the coil protection insert (4) comprises a plurality of protrusions (14), each protrusion (14) being arranged at the first side (5) of the coil (2).

4. An induction heating device (1) according to claim 3, wherein each of the plurality of protrusions (14) is arranged in a respective coil protection insert recess (13) of the coil (2).

5. An induction heating device (1) according to claim 3 or 4, wherein the plurality of protrusions (14) embraces substantially the whole first side (5) of the coil (2).

6. An induction heating device (1) according to any of the claims 1-5, wherein the coil protection insert (4) or the plurality of protrusions (14) is spherically shaped.

7. An induction heating device (1) according to claim 6, wherein the plurality of protrusions (14) is rollably connected to the coil (2).

8. An induction heating device (1) according to any of the claims 1-6, wherein the coil protection insert (4) or the plurality of protrusions (14) is fixedly connected to the coil (2).

9. An induction heating device (1) according to any of the claim 1-5 or 8, wherein the coil protection insert (4) or the plurality of protrusions (14) has a spherical, chamfered or rounded head.

10. An induction heating device (1) according to any of the claims 1-9, wherein the coil protection insert (4) or the plurality of protrusions (14) is of a non-conductive, non-magnetic, heat and tear-and-wear resistant material.

11. An induction heating device (1) according to any of the claims 1-10, wherein the coil protection insert (4) or the plurality of protrusions (14) is of a ceramic material.

12. An induction heating device (1) according to claim 3-11, wherein the plurality of protrusions (14) are of varying shapes and sizes that can match and pair depending on circumstance.

13. An induction heating device (1) according to any of the claims 1-12, the induction heating device (1) comprising a magnetic field concentrator (11) arranged at a second side (12) of the coil (2), wherein the second side (12) is opposite from the first side (5).

14. An induction heating device (1) according to claim 13, wherein the magnetic field concentrator (11) extends from the second side (12) of the coil (2) towards the first side (5) of the coil (2) so that the magnetic field concentrator (11) at least partly encloses the coil (2).

15. An induction heating system (15) comprising a power supply (3) and an induction heating device (1) according to any of the claims 1-14, and an electric cable (16) for delivering electricity from the power supply (3) to the induction heating device (1), permitting the system (15) to heat the work piece (7) by induction and to avoid contact between the coil (2) and the surface (6) of the work piece (7).

Description

BRIEF DESCRIPTION OF DRAWINGS

[0063] The invention is now described, by way of example, with reference to the accompanying drawings, in which:

[0064] FIG. 1 shows an induction heating device and an induction heating system in a perspective view, and

[0065] FIG. 2a shows an induction heating device in a front view; FIG. 2b shows an induction heating device in a side view; FIG. 2c shows an induction heating device in a top view; FIG. 2d shows an induction heating device in a perspective view, and

[0066] FIG. 3a shows an induction heating device with a handle in a top view; FIG. 3b shows an induction heating device with a handle in a perspective view, and

[0067] FIG. 4 shows an induction heating device with a handle in a perspective view together with a work piece, and

[0068] FIG. 5. shows an induction heating device with a handle in a perspective view together with a human being, and

[0069] FIG. 6 shows an induction heating device with a steering and control system in a perspective view together with a work piece, and

[0070] FIG. 7a shows an induction heating device in a front view; FIG. 7b shows an induction heating device in a side view; FIG. 7c shows an induction heating device in a top view; FIG. 7d shows an induction heating device in a perspective view, and

[0071] FIG. 8a-8i show an induction heating device in a front view with different types of coil protection inserts combined with different types of coil protection insert recesses, and

[0072] FIG. 9 shows an induction heating device in one type of format in a perspective view, and

[0073] FIG. 10 shows an induction heating device in one type of format in a perspective view, and

[0074] FIG. 11 shows an induction heating device in one type of format in a perspective view.

DESCRIPTION OF EMBODIMENTS

[0075] In the following, a detailed description of an induction heating device and system, is provided.

[0076] FIG. 1 shows an induction heating device 1 and system according to an embodiment of the invention, comprising an electromagnetic coil 2 connectable to a power supply 3 via an electric cable 16. The electromagnetic coil 2 comprising a coil protection insert 4. Wherein the coil protection insert 4 protrudes from a first side 5 of the coil 2 towards a surface 6 of a work piece 7 to be heated by the induction heating device 1 when the induction heating device 1 is used for heating the work piece 7. The coil protection insert 4 preventing contact between the coil 2 and the surface 6 of the work piece 7.

[0077] FIG. 2a-2d show an induction heating device 1 comprising a coil protection insert 4. Wherein the coil protection insert 4 in FIG. 2a is arranged in a coil protection insert recess 13 of the coil 2.

[0078] FIG. 3a-3b show an induction heating device 1 connected to a handle 8.

[0079] FIG. 4 shows an induction heating device 1 connected to a handle 8 together with a work piece 7.

[0080] FIG. 5 shows an induction heating device 1 connected to a handle 8 steered by a human being 9.

[0081] FIG. 6 shows an induction heating device 1 connected to a steering and control system 10 together with a work piece 7.

[0082] FIG. 7a-7d show an induction heating device 1. Wherein the coil protection insert 4 comprises a plurality of protrusions 14. Each protrusion 14 being arranged at the first side 5 of the coil 2. The induction heating device 1 comprising a magnetic field concentrator 11 arranged at a second side 12 of the coil 2. Wherein the second side 12 is opposite from the first side 5. Further, the magnetic field concentrator 11 extends from the second side 12 of the coil 2 towards the first side 5 of the coil 2 so that the magnetic field concentrator 11 at least partly encloses the coil 2. The plurality of protrusions 14 embraces substantially the whole first side 5 of the coil 2. Wherein each of the plurality of protrusions 14 in FIG. 7a being arranged in a respective coil protection insert recess 13 of the coil 2.

[0083] FIG. 8a-8i show an induction heating device 1 with different types of coil protection inserts 4 combined with different types of coil protection insert recesses 13. Wherein in FIG. 8a-8f the coil protection insert or the plurality of protrusions 14 is spherically shaped. Wherein in FIG. 8i the coil protection insert has a spherical, chamfered or rounded head.

[0084] FIG. 9 shows an induction heating device 1. Wherein the coil 2 comprises a plurality of protrusions 14. Each protrusion 14 being arranged at the first side 5 of the coil 2.

[0085] FIG. 10 shows an induction heating device 1. Wherein the coil 2 comprises a plurality of protrusions 14. Each protrusion 14 being arranged at the first side 5 of the coil 2.

[0086] FIG. 11 shows an induction heating device 1. Wherein the coil 2 comprises a plurality of protrusions 14. Each protrusion 14 being arranged at the first side 5 of the coil 2.