CN219499576U - Electromagnetic heating device, battery and vehicle - Google Patents

Abstract

The utility model discloses an electromagnetic heating device, a battery and a vehicle. The electromagnetic heating device comprises a magnetic conduction assembly, an induction coil and a antimagnet. The magnetic conduction assembly is provided with a first induction surface and a second induction surface, and the first induction surface and the second induction surface are oppositely arranged at intervals. The induction coil is wound on the magnetic conduction assembly. The antimagnet is located between first response face and the second response face, and antimagnet includes the antimagnetic position relative with first response face and second response face, and antimagnetic position is formed with heating space and leads to magnetism mouth, leads to magnetism mouth intercommunication heating space. According to the electromagnetic heating device, the battery and the vehicle, the anti-magnet can generate the induced magnetic field with the direction opposite to that of the induced magnetic field in the induced magnetic field, the induced magnetic field is overlapped with the induced magnetic field, the magnetic field distribution and the strength of a part to be heated are changed, the temperature of the edge area of the part to be heated is reduced, the uniformity of a heating pole core is regulated, and the influence on the thermal contraction of a diaphragm of the pole core when the high-temperature heat of the part to be heated is transferred into the pole core is avoided.

Description

Electromagnetic heating device, battery and vehicle

Technical Field

The utility model relates to the technical field of battery processing, in particular to an electromagnetic heating device, a battery and a vehicle.

Background

The production process of the battery comprises a plurality of working procedures and processes, wherein the lamination process is an important link of the battery manufacturing process and is also a core production process of battery production. The pole core of the battery is manufactured by alternately and continuously laminating a positive pole piece, a negative pole piece and a diaphragm, and the pole core after lamination is manufactured needs to be heated, hot-pressed and shaped, so that the pole piece and the diaphragm in the pole core are bonded together, and the relative position of the pole piece and the diaphragm is kept fixed, and the uniformity of gaps between the pole pieces is kept.

In the application of heating the two ends of the pole core, the existing electromagnetic induction heating structure mostly adopts a magnetizer wound by a wire and fixed in turns, and the pole core is placed in a magnetic field area between induction surfaces of the magnetizer, so that the pole core is heated by electromagnetic induction. Electromagnetic induction heating has a remarkable skin effect (skin effect), resulting in high temperatures at the surface and edge regions of the object to be heated, and lower temperatures at the intermediate region than at the surface and edge regions, so that the temperature uniformity of the entire object to be heated is poor. After the electrode core is heated by electromagnetic induction, the temperature of the edge area of the electrode core is higher than that of the middle area, the temperature of the metal part of the electrode lug is highest, the overall temperature uniformity during heating of the electrode core is not easy to control, and the diaphragm can be damaged by the high temperature generated at the electrode lug.

Disclosure of Invention

The embodiment of the utility model provides an electromagnetic heating device, a battery and a vehicle.

The electromagnetic heating device of the embodiment of the utility model comprises a magnetic conduction assembly, an induction coil and a antimagnet. The magnetic conduction assembly is provided with a first induction surface and a second induction surface, and the first induction surface and the second induction surface are oppositely arranged at intervals. The induction coil is wound on the magnetic conduction assembly. The anti-magnet is located between the first induction surface and the second induction surface, the anti-magnet comprises an anti-magnetic part opposite to the first induction surface and the second induction surface, a heating space and a magnetic flux opening are formed in the anti-magnetic part, and the magnetic flux opening is communicated with the heating space.

In some embodiments, the antimagnet includes a first antimagnetic plate and a second antimagnetic plate, the first antimagnetic plate and the second antimagnetic plate are disposed at opposite intervals and located between the first sensing surface and the second sensing surface, the heating space is formed between the first antimagnetic plate and the second antimagnetic plate, and the first antimagnetic plate and the second antimagnetic plate are both provided with the magnetic flux opening.

In some embodiments, the magnetic flux opening of the first anti-magnetic plate and the magnetic flux opening of the second anti-magnetic plate are disposed opposite to each other.

In some embodiments, the inner edge of the magnetic flux port shields a portion of the edges of the first sensing surface and the second sensing surface.

In some embodiments, the magnetically permeable assembly includes at least one of a C-shaped magnetizer and a U-shaped magnetizer.

In some embodiments, two opposing U-shaped magnetic conductors form a magnetic conductive pair, and the first sensing surface and the second sensing surface are respectively located on different U-shaped magnetic conductors of the magnetic conductive pair.

In some embodiments, the first sensing surface and the second sensing surface are disposed in parallel, and a perpendicular to the first sensing surface and the second sensing surface is perpendicular to a length direction of the pole piece.

In some embodiments, the electromagnetic heating device comprises a plurality of the magnetic pairs, and the plurality of the magnetic pairs are arranged at intervals along the length direction of the pole core.

In some embodiments, a plurality of the magnetically permeable pairs are spaced apart along the length of the pole piece to form a magnetically permeable row.

The battery of the embodiment of the utility model comprises a pole core. The pole piece is heated and processed by the electromagnetic heating device in any embodiment.

The vehicle of the embodiment of the utility model comprises a battery. The battery includes a pole piece. The pole core is heated and processed by an electromagnetic heating device.

In the electromagnetic heating device, the battery and the vehicle, the induction coil is wound on the magnetic conduction assembly, so that an induction magnetic field can be generated, and the induction magnetic field acts on the pole core through the magnetic conduction assembly, so that induction current (vortex) is generated in the pole core, and the induction current can generate a Joule heating effect in the pole core, thereby achieving the effect of heating the pole core. When the to-be-heated part of the pole core can be placed in the heating space for heating, the antimagnet can generate an induced magnetic field with the direction opposite to that of the induced magnetic field in the induced magnetic field, and the induced magnetic field is overlapped with the induced magnetic field so as to change the magnetic field distribution and the intensity of the to-be-heated part and reduce the temperature of the edge area of the to-be-heated part, thereby adjusting the uniformity of the heating pole core and avoiding the influence on the thermal shrinkage of the diaphragm of the pole core when the high-temperature heat of the to-be-heated part is transferred into the pole core.

Additional aspects and advantages of embodiments of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic perspective view of an electromagnetic heating apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic plan view of a vehicle according to an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a battery pole core according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the induced magnetic field of an electromagnetic heating apparatus according to an embodiment of the present utility model;

fig. 5 is a schematic perspective view of a pole core of a heating battery of an electromagnetic heating device according to an embodiment of the present utility model;

FIG. 6 is a schematic plan view of a heater core of an electromagnetic heater according to an embodiment of the present utility model;

FIG. 7 is a schematic plan view of an electromagnetic heater according to an embodiment of the present utility model from another perspective;

FIG. 8 is a schematic plan view of a diamagnet of an electromagnetic heating apparatus according to an embodiment of the utility model;

fig. 9 is a schematic perspective view of an electromagnetic heating apparatus according to an embodiment of the present utility model;

FIG. 10 is a schematic perspective view of a heater core of the electromagnetic heater shown in FIG. 9;

fig. 11 is a schematic perspective view of a heating electrode core of an electromagnetic heating device according to an embodiment of the present utility model.

Description of main reference numerals:

a vehicle 1000;

a battery 100; a vehicle body 200;

an electromagnetic heating device 10; a pole piece 20, a positive pole piece 21, a negative pole piece 22 and a diaphragm 23;

the magnetic conduction assembly 11, the first induction surface 111, the second induction surface 112, the magnetic conduction pair 113, the first U-shaped magnetic conductor 1131, the second U-shaped magnetic conductor 1132 and the magnetic conduction row 114; an induction coil 12; a antimagnet 13, a antimagnetic portion 130, a heating space 1301, a magnetic flux opening 1302, a first antimagnetic plate 131, and a second antimagnetic plate 132.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present utility model and are not to be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, it is worth mentioning that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Features defining "first", "second" may include one or more of the stated features, either explicitly or implicitly. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements or interaction relationship between the two elements. The specific meaning of the above terms in the embodiments of the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

In an embodiment of the utility model, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different structures of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and do not in itself indicate a relationship between the various embodiments and/or arrangements discussed. Embodiments of the present utility model provide examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1, an electromagnetic heating device 10 according to an embodiment of the present utility model includes a magnetic conductive assembly 11, an induction coil 12, and a antimagnet 13. The magnetic conduction assembly 11 has a first sensing surface 111 and a second sensing surface 112, and the first sensing surface 111 and the second sensing surface 112 are disposed at opposite intervals. The induction coil 12 is wound around the magnetic conductive member 11. The antimagnet 13 is located between the first sensing surface 111 and the second sensing surface 112, the antimagnet 13 includes a antimagnetic portion 130 opposite to the first sensing surface 111 and the second sensing surface 112, the antimagnetic portion 130 is formed with a heating space 1301 and a magnetic flux opening 1302, and the magnetic flux opening 1302 is communicated with the heating space 1301.

In the electromagnetic heating device 10 of the present utility model, the induction coil 12 is wound on the magnetic conduction assembly 11, and can generate an induction magnetic field, and the induction magnetic field acts on the pole core 20 through the magnetic conduction assembly 11, so that an induction current (eddy current) is generated inside the pole core 20, and the induction current can generate a joule heating effect inside the pole core 20, thereby achieving the effect of heating the pole core 20. When the portion to be heated of the pole core 20 can be placed in the heating space 1301 for heating, the anti-magnet 13 can generate an induced magnetic field opposite to the direction of the induced magnetic field in the induced magnetic field, and the induced magnetic field is overlapped with the induced magnetic field to change the magnetic field distribution and strength of the portion to be heated so as to reduce the temperature of the edge area of the portion to be heated, thereby adjusting the uniformity of the heating pole core 20 and avoiding the influence of thermal shrinkage on the diaphragm 23 of the pole core 20 when the high temperature heat of the portion to be heated is transferred into the pole core 20.

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

Referring to fig. 2, an embodiment of the present utility model provides a vehicle 1000. The vehicle 1000 includes a battery 100 and a vehicle body 200. The battery 100 is mounted in the vehicle body 200.

Referring to fig. 3, a battery 100 is provided according to an embodiment of the present utility model. The battery 100 may be mounted in the body 200 of the vehicle 1000 described above. Battery 100 includes a pole piece 20.

Specifically, the electrode core 20 may include a positive electrode sheet 21, a negative electrode sheet 22, and a separator 23. The electrode core 20 is made by alternately and continuously laminating a diaphragm 23, a negative electrode plate 22, the diaphragm 23 and a positive electrode plate 21, wherein the diaphragm 23 is used for separating the positive electrode plate 21 and the negative electrode plate 22. After the lamination is finished, the pole core 20 needs to be heated, hot-pressed and shaped, so that the pole piece of the pole core 20 and the diaphragm 23 are bonded together, and the relative position of the pole piece and the diaphragm 23 is fixed, and the uniformity of the gap between the pole pieces is maintained.

Referring to fig. 1, an electromagnetic heating device 10 includes a magnetic conductive assembly 11, an induction coil 12, and a antimagnet 13. The electromagnetic heating device 10 according to the embodiment of the present utility model can be used for heating the electrode core 20 of the battery 100 according to the above embodiment.

Specifically, as shown in fig. 1, the magnetic conduction assembly 11 includes a first sensing surface 111 and a second sensing surface 112 opposite to each other. When the induction coil 12 is electrified, the current can enable the induction coil 12 to generate an alternating induction magnetic field according to the electromagnetic induction principle, the induction magnetic field acts on the pole core 20 through the magnetic conduction assembly 11, so that induction current (eddy current) is generated inside the pole core 20, and the induction current (eddy current) can generate a joule heating effect inside the pole core 20, thereby achieving the effect of heating the pole core 20. The strength of the induced magnetic field is proportional to the number of turns of the induction coil 12 and the magnitude of the current in the induction coil 12.

Referring to fig. 4, the first sensing surface 111 is taken as an N pole, and the second sensing surface 112 is taken as an S pole for explanation. The magnetic force lines alternating in the induction magnetic field MF are emitted from the first induction surface 111 through the magnetic conduction assembly 11, pass through the air gap and enter the second induction surface 112.

At present, when the pole piece 20 is not placed in the magnetic field, as shown in fig. 4, the magnetic field intensity of the induced magnetic field MF decreases from the inside to the outside of the first induction surface 111 and the second induction surface 112, and the magnetic field intensity distribution is uneven. Then, after the pole piece 20 is placed in the magnetic field, the pole piece 20 affects the magnetic field distribution of the induced magnetic field itself. The magnetic field intensity at the middle position of the first sensing surface 111 and the second sensing surface 112 is small, and the magnetic field intensity at the edge position is large. In this way, when the pole piece 20 is placed in the induction magnetic field MF between the first induction surface 111 and the second induction surface 112 for heating, the temperature of the edge area of the pole piece 20 is high, and the temperature of the middle area of the pole piece 20 is low, i.e., the skin effect and the edge effect are obvious, resulting in poor overall uniformity of the temperature of the heated pole piece 20.

In addition, the electrode core 20 is further provided with a metal conductor (tab) for leading out the positive and negative electrodes of the electrode core 20, so that when the uniformity of heating the electrode core 20 is poor, the temperature of the region where the tab is located is the highest, and the diaphragm 23 in the electrode core 20 may be damaged by the generated high temperature.

Referring to fig. 1, 4 and 5, the anti-magnet 13 is disposed between the first sensing surface 111 and the second sensing surface 112, i.e. the anti-magnet 13 is disposed in the induced magnetic field MF. The material of the antimagnet 13 may be a antimagnetic material such as copper or a copper alloy.

Specifically, the antimagnet 13 includes a antimagnetic portion 130 opposite to the first sensing surface 111 and the second sensing surface 112, the antimagnetic portion 130 is formed with a heating space 1301 and a magnetic flux port 1302, and the magnetic flux port 1302 is communicated with the heating space 1301.

Referring to fig. 5 to 7, when the pole core 20 is placed in the electromagnetic heating device 10 to be heated, the portion to be heated of the pole core 20 is located in the heating space 1301 of the diamagnetic portion 130. The region to be heated of the pole core 20 is a region where two ends of the pole core 20 are coated with hot melt adhesive.

The antimagnet 13 is capable of generating an induced magnetic field in the induced magnetic field MF in a direction opposite to the induced magnetic field MF. In this way, the superposition of the induced magnetic field and the induced magnetic field MF can change the magnetic field distribution and intensity of the portion to be heated of the pole core 20 in the heating space 1301, so as to reduce the temperature of the portion to be heated in the heating space 1301, thereby effectively reducing the temperature of the pole lug and the edge region of the pole core 20, improving the temperature uniformity of the whole pole core 20, and avoiding the influence of thermal contraction on the diaphragm 23 when the high temperature heat generated at the pole lug is transferred into the pole core 20.

More specifically, the diamagnet 13 includes a first diamagnetic plate 131 and a second diamagnetic plate 132. The first anti-magnetic plate 131 and the second anti-magnetic plate 132 are disposed at opposite intervals and located between the first sensing surface 111 and the second sensing surface 112. As shown in fig. 1, the first anti-magnetic plate 131 is disposed near the first sensing surface 111, and the second anti-magnetic plate 132 is disposed near the second sensing surface 112.

A heating space 1301 is formed between the first and second anti-magnetic plates 131 and 132, and a portion to be heated of the pole core 20 may be placed in the heating space 1301 to be heated. The first anti-magnetic plate 131 and the second anti-magnetic plate 132 are both provided with a magnetic flux port 1302. As shown in fig. 1, the edge regions of the first anti-magnetic plate 131 and the second anti-magnetic plate 132 are provided with magnetic flux openings 1302, which are specifically in the form of notches.

In one embodiment, as shown in fig. 8, the magnetic flux port 1302 may be a through hole formed on the first anti-magnetic plate 131. Similarly, the magnetic flux opening 1302 formed in the second anti-magnetic plate 132 may be in the form of a through hole.

Referring to fig. 1, the magnetic flux openings 1302 of the first anti-magnetic plate 131 and the magnetic flux openings 1302 of the second anti-magnetic plate 132 are disposed opposite to each other, so as to ensure that when the induced magnetic fields of the first anti-magnetic plate 131 and the second anti-magnetic plate 132 are generated in opposite directions of the induced magnetic field MF, the induced magnetic fields generated by the first anti-magnetic plate 131 and the second anti-magnetic plate 132 are not overlapped with the induced magnetic field MF at the same position (the position of the magnetic flux openings 1302), so as to ensure uniformity of the overlapped magnetic fields, thereby ensuring uniformity of the temperature of the heating electrode core 20.

In one embodiment, referring to fig. 5 and 7, the inner edge of the magnetic flux port 1302 shields a portion of the edges of the first sensing surface 111 and the second sensing surface 112. It will be appreciated that when the portion to be heated of the pole core 20 is heated in the heating space 1301, the magnetic field strength and distribution of the portion to be heated opposite to the magnetic flux port 1302 will not change, which is the middle region of the pole core 20, while the heating space 1301 corresponds to the edge region of the portion to be heated, the magnetic field strength and distribution thereof will change, i.e. the temperature of the edge region of the pole core 20 will decrease, and the temperature of the middle region of the pole core 20 will not change, thereby ensuring to improve the temperature uniformity of the whole pole core 20.

In some embodiments, when the electrode core 20 is placed in the heating space 1301 for heating, the opening widths of the first anti-magnetic plate 131 and the second anti-magnetic plate 132 may be different according to different characteristics of the positive and negative metal materials of the electrode core 20, so as to ensure that the heating effect of the positive and negative electrode tabs is the same when the electrode tabs of the electrode core 20 are heated.

In addition, referring to fig. 5 and 6, the areas of the first and second anti-magnetic plates 131 and 132 are larger than the area of the region to be heated of the core 20, so as to ensure that the region to be heated of the core 20 is not excessively heated.

Referring to fig. 1 and 9, in some embodiments, the magnetic conductive assembly 11 may include a C-shaped magnetic conductive body, a U-shaped magnetic conductive body, and a common combination of the C-shaped magnetic conductive body and the U-shaped magnetic conductive body.

When the magnetic conduction assembly 11 includes a U-shaped magnetic conductor, the magnetic conduction assembly 11 may include a magnetic conduction pair 113 composed of two U-shaped magnetic conductors. The first sensing surface 111 and the second sensing surface 112 of the magnetic conductive assembly 11 are respectively located on different U-shaped magnetic conductors of the magnetic conductive pair 113.

As shown in fig. 9, the magnetic conductive assembly 11 includes a first U-shaped magnetic conductor 1131 and a second U-shaped magnetic conductor 1132. The first sensing surface 111 is located on the first U-shaped magnetizer 1131, the second sensing surface 112 is located on the second U-shaped magnetizer 1132, and the first sensing surface 111 is opposite to the second sensing surface 112.

Specifically, referring to fig. 9 and 10, the first sensing surface 111 and the second sensing surface 112 are disposed in parallel, and a perpendicular line of the first sensing surface 111 and the second sensing surface 112 is perpendicular to the length direction of the pole core 20. It can be seen that when the magnetically permeable assembly 11 includes a pair 113 of two U-shaped magnetically permeable bodies, the first U-shaped magnetically permeable body 1131 includes two first sensing surfaces 111 and the second U-shaped magnetically permeable body 1132 includes two second sensing surfaces 112.

As such, between both the first sensing surfaces 111 and the second sensing surfaces 112, a diamagnet 13 may be disposed. That is, the electromagnetic heating device 10 includes two antimagnets 13 respectively disposed between different first and second sensing surfaces 111 and 112. Then, when the pole pieces 20 are heated, the two pole pieces 20 may be simultaneously disposed in the heating spaces 1301 of the two antimagnets 13 to heat the plurality of pole pieces 20 at one time, thereby improving the efficiency of heating the pole pieces 20, i.e., improving the tact of the battery 100.

It should be noted that, when the plurality of pole pieces 20 are heated, the number of turns of the induction coil 12 disposed on the U-shaped magnetizer may be increased, or the current may be increased, so as to enhance the strength of the induction magnetic field, so as to ensure that the strength of the induction magnetic field can sufficiently heat the plurality of pole pieces 20, thereby improving the heating efficiency.

Referring to fig. 11, in some embodiments, when the magnetic conduction assembly 11 includes a U-shaped magnetic conductor, the electromagnetic heating device 10 may further include a plurality of magnetic conduction pairs 113, and the plurality of magnetic conduction pairs are spaced apart along the length direction of the pole core 20.

As can be seen from the above description, one magnetic pair 113 includes two U-shaped magnetic conductors, for example, when the number of magnetic pairs 113 is 2, the magnetic assembly 11 includes 4U-shaped magnetic conductors; for example, when the number of the pair of magnetic conductors 113 is 3, the magnetic conductive assembly 11 includes 6U-shaped magnetic conductors.

Specifically, the plurality of magnetic pairs 113 may be arranged at intervals along the length direction of the pole core 20 to form magnetic conductive rows 114. As shown in fig. 11, the magnetic conductive rows 114 are composed of 3 magnetic conductive pairs 113, and the distance between two adjacent magnetic conductive pairs 113 corresponds to the length of the pole core 20, so that the two adjacent magnetic conductive pairs 113 can heat both ends of the pole core 20 at the same time. It will be appreciated that 3 magnetically permeable pairs 113 may simultaneously heat both ends of 2 pole pieces 20.

The middle magnetic pair 113 of the magnetic row 114 heats the two pole pieces 20 at the same time, so that the number of turns of the induction coil 12 on the middle magnetic pair 113 of the magnetic row 114 is larger than the number of turns of the induction coil 12 on the magnetic pair at the two ends of the magnetic row 114, so as to ensure that the energy of the middle magnetic pair 113 for heating the two pole pieces 20 is consistent with the energy of the magnetic pair 113 at the two ends for heating the pole pieces 20, thereby ensuring the heating uniformity of the two pole pieces 20.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It is noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Features defining "first", "second" may include at least one feature, either explicitly or implicitly. In the description of the present utility model, the meaning of "plurality" is at least two, in one embodiment two, three, unless explicitly defined otherwise.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art within the scope of the utility model, which is defined by the claims and their equivalents.

Claims (11)

1. An electromagnetic heating device, comprising:

the magnetic conduction assembly is provided with a first induction surface and a second induction surface, and the first induction surface and the second induction surface are oppositely arranged at intervals;

the induction coil is wound on the magnetic conduction assembly;

the anti-magnet is located between the first induction surface and the second induction surface, the anti-magnet comprises an anti-magnet part opposite to the first induction surface and the second induction surface, a heating space and a magnetic flux opening are formed in the anti-magnet part, and the magnetic flux opening is communicated with the heating space.

2. The electromagnetic heating device of claim 1, wherein the antimagnet comprises a first antimagnet plate and a second antimagnet plate, the first antimagnet plate and the second antimagnet plate are disposed at opposite intervals and located between the first sensing surface and the second sensing surface, the heating space is formed between the first antimagnet plate and the second antimagnet plate, and the first antimagnet plate and the second antimagnet plate are both provided with the magnetic flux opening.

3. The electromagnetic heating device of claim 2, wherein the magnetic flux ports of the first anti-magnetic plate and the magnetic flux ports of the second anti-magnetic plate are disposed directly opposite.

4. The electromagnetic heating device of claim 1, wherein an inner edge of the magnetically permeable aperture obstructs a portion of edges of the first sensing surface and the second sensing surface.

5. The electromagnetic heating device of claim 1, wherein the magnetically permeable assembly comprises at least one of a C-shaped magnetic conductor and a U-shaped magnetic conductor.

6. The electromagnetic heating device of claim 5, wherein two opposing U-shaped magnetic conductors form a magnetic pair, the first sensing surface and the second sensing surface being located on different U-shaped magnetic conductors of the magnetic pair, respectively.

7. The electromagnetic heating device of claim 6, wherein the first sensing surface and the second sensing surface are disposed in parallel, and a perpendicular to the first sensing surface and the second sensing surface is perpendicular to a length direction of the pole piece.

8. The electromagnetic heating device of claim 6, wherein the electromagnetic heating device comprises a plurality of the magnetically permeable pairs, the plurality of magnetically permeable pairs being spaced apart along a length of the pole piece.

9. The electromagnetic heating device of claim 8, wherein a plurality of said magnetically permeable pairs are spaced apart along the length of said pole core to form a magnetically permeable row.

10. A battery comprising a pole core heated by the electromagnetic heating device of any one of claims 1-9.

11. A vehicle comprising the battery of claim 10.