CN115066046A

CN115066046A - Energy-saving IGBT intermediate frequency induction heating equipment and method

Info

Publication number: CN115066046A
Application number: CN202210871545.4A
Authority: CN
Inventors: 张立
Original assignee: Hebi Lichuang Yingtai Electrical Equipment Co ltd
Current assignee: Hebi Lichuang Yingtai Electrical Equipment Co ltd
Priority date: 2022-07-23
Filing date: 2022-07-23
Publication date: 2022-09-16

Abstract

The invention discloses energy-saving IGBT intermediate frequency induction heating equipment and a method, the energy-saving IGBT intermediate frequency induction heating equipment comprises a bottom plate, a mobile station is arranged at the top end of the bottom plate, an outer cover plate is arranged at the front end of the mobile station, a magnetic induction structure is arranged inside the outer cover plate, a mounting plate is arranged at the bottom end of the magnetic induction structure, the mobile station comprises a slide rail, a slide block, a vertical plate and positioning rods, the slide block is fixed at the bottom of the vertical plate and is arranged on the slide rail, two groups of slide rails are arranged on the slide rail, the positioning rods are fixed at the top end of the vertical plate, the magnetic induction structure comprises a thermocouple, two groups of fixed disks, an induction coil of a furnace end, a connecting rod and a heat insulation tile, a user can move into the induction coil of the furnace end through the mobile station, and in the heating process, the internal temperature can be kept through the heat insulation tile structure therein, the external radiation is avoided, the loss of heat is reduced, and the heat is more concentrated on a workpiece, the induction coil structure of the transverse furnace end can improve the heating uniformity.

Description

Energy-saving IGBT intermediate frequency induction heating equipment and method

Technical Field

The invention relates to the field of induction heating equipment, in particular to energy-saving IGBT intermediate frequency induction heating equipment and a method.

Background

The medium-frequency induction heating principle is that alternating current is generated through a rectification inverter circuit so as to generate an alternating magnetic field, and then the alternating magnetic field is utilized to generate eddy current to achieve the heating effect. By using the amplitude-frequency characteristic of the current of the LC oscillating circuit, the output power of the medium-frequency power supply can be quickly changed by changing the resonant frequency of the input circuit, so that the surface temperature of the workpiece can be quickly changed. Based on the skin effect principle in the heating theory, when the frequency is larger, the skin depth is shallower, the alternating current impedance is larger, the medium-frequency induction heating power supply is manufactured based on the principle, the operating frequency can be increased to be several times of the power frequency by using the frequency conversion technology, and the heating effect can be obviously improved.

In the existing induction heating structure, small workpieces are heated and clamped through an external structure, so that the induction end of the IGBT device is exposed to the outside, the heat loss is caused, more resources are wasted for the induction heating structure which needs to consume a large amount of power resources, and energy is not saved enough.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides energy-saving IGBT intermediate frequency induction heating equipment and method, through the arrangement of an induction coil of a furnace end and a heat insulation tile structure, a user can move into the induction coil of the furnace end through a mobile station, and in the heating process, the internal temperature can be kept through the heat insulation tile structure, the external emission is avoided, the loss of heat is reduced, the heat is more concentrated on a workpiece, the energy-saving effect is achieved, and the heating uniformity can be improved through the induction coil structure of the transverse furnace end.

In order to solve the technical problems, the invention provides the following technical scheme: an energy-saving IGBT intermediate frequency induction heating device and a method thereof, comprising a bottom plate, wherein the top end of the bottom plate is provided with a mobile station, the front end of the mobile station is provided with an outer cover plate, the inside of the outer cover plate is provided with a magnetic induction structure, the bottom end of the magnetic induction structure is provided with a mounting plate, the mobile station comprises a slide rail, a slide block, a vertical plate and a positioning rod, the slide block is fixed at the bottom of the vertical plate, the slide block is arranged on the slide rail, the slide rail is provided with two groups, the positioning rod is fixed at the top end of the vertical plate, the magnetic induction structure comprises a thermocouple, two groups of fixed disks, induction coils of a furnace end, connecting rods and heat insulation tiles, the connecting rods are internally and externally provided with two groups, the induction coils of the furnace end are arranged between the two groups of connecting rods, the two ends of the induction coils of the furnace end are both connected with the thermocouple, and the two groups of the connecting rods are both fixed on the two groups of fixed disks, the thermocouple is electrically connected with an external power supply.

As a preferable technical scheme, a vertical plate is arranged on one side of the top end of the bottom plate, a threaded rod is arranged in the middle of the vertical plate, the tail end of the threaded rod is arranged at the bottom end of the vertical plate, a bearing plate is arranged at the bottom end of the vertical plate, the sliding block is fixed at the bottom of the bearing plate, and a knob is arranged at the other end of the threaded rod.

As a preferred technical scheme of the invention, a plurality of groups of upright columns are arranged at the top end of one side of the bottom plate, the top ends of the upright columns are fixedly connected with the mounting side plate, the mounting side plate is fixed at the middle parts of the two groups of fixed disks, each group of fixed disks is of a hollow circular ring structure, the mounting plate is fixed at the edge of the bottom plate, and one end of each group of thermocouples is fixed at the mounting plate.

As a preferred technical scheme of the invention, both ends of the connecting rods on the inner side and the outer side are fixedly connected with the fixed disc through the positioning screws, and the heat-insulating tiles are fixed in the gaps of the connecting rods on the outer side.

As a preferable technical scheme of the invention, the induction coil of the furnace end is of a disc-shaped structure, the tail ends of two sides of the induction coil are respectively provided with a port, and the ports are fixedly connected with the thermocouple.

According to a preferable technical scheme of the invention, the vertical plate and the bearing plate are fixed in a right angle mode, an adjusting hole in a circular groove opening mode penetrates through the middle of the top end of the vertical plate, a positioning rod is arranged on one side of the adjusting hole, a screw rod structure is arranged in the middle of the positioning rod, and the positioning rod is clamped in the adjusting hole through the screw rod and a bolt structure.

As a preferred technical solution of the present invention, the end of the slide rail is disposed at the bottom of the induction coil of the burner

As a preferable technical solution of the present invention, the length of the adjustment hole is smaller than the radius of the induction coil of the burner.

As a preferable technical scheme of the invention, an outer shell is fixed on the outer side of each group of thermocouples.

In order to solve the above technical problems, the present invention provides the following solutions: an energy-saving IGBT intermediate frequency induction heating method comprises the following steps:

the method comprises the following steps: placing a workpiece on the positioning rod; connecting one end of a thermocouple with an external power supply, and preheating to a specified temperature;

step two: rotating the threaded rod, pushing the vertical plate forwards through the threaded rod to move forwards through the sliding rail and the sliding block at the bottom end, driving the workpiece to move towards the middle of the induction coil of the furnace end, and stopping when the workpiece reaches a specified position;

step three: the induction coil structure through the furnace end heats the workpiece, after the specified time, the threaded rod is screwed out to drive the vertical plate to move backwards, and a user takes off the workpiece to achieve the effect of induction heating

Compared with the prior art, the invention can achieve the following beneficial effects:

1. in this device, through the slide rail, slider and the threaded rod structure that set up, the user can drive work piece and mobile station through the threaded rod and remove, carries out induction heating to the assigned position of work piece, has also made things convenient for the user to the removal needs of bulky work piece simultaneously, avoids the condition of handing.

2. This device, induction coil and thermal-insulated tile structure through the furnace end that sets up, the user can remove to the induction coil of furnace end in through the mobile station, and in the heating process, can keep inside temperature through thermal-insulated tile structure wherein, avoids giving off to the outside, reduces thermal losing, concentrates on the work piece with the heat more, plays energy-conserving effect, and the induction coil structure of horizontal furnace end can improve the homogeneity of heating.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

FIG. 3 is a third schematic structural diagram of the present invention;

FIG. 4 is a schematic view of the present invention without the housing plate;

FIG. 5 is a second schematic view of the present invention without the outer cover plate and the induction coil of the burner;

FIG. 6 is a schematic view of an induction coil structure of the burner of the present invention;

FIG. 7 is a schematic view of the construction of the holding pan, connecting rods and insulating tiles of the present invention;

fig. 8 is a schematic cross-sectional view of fig. 7.

Wherein: 1. a base plate; 11. a vertical plate; 111. a threaded rod; 12. a slide rail; 2. a mobile station; 21. a slider; 22. a vertical plate; 23. an adjustment hole; 24. positioning a rod; 25. a bearing plate; 3. an outer cover plate; 4. a magnetic induction structure; 41. a housing; 42. a thermocouple; 43. fixing the disc; 44. an induction coil of the burner; 441. a port; 45. a column; 46. installing a side plate; 47. a connecting rod; 48. a heat insulating tile; 49. positioning a screw rod; 5. and (7) mounting the plate.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-8, the present invention provides an energy-saving IGBT intermediate frequency induction heating apparatus, which comprises a bottom plate 1, a moving platform 2 is arranged at the top end of the bottom plate 1, an outer cover plate 3 is arranged at the front end of the moving platform 2, a magnetic induction structure 4 is arranged inside the outer cover plate 3, a mounting plate 5 is arranged at the bottom end of the magnetic induction structure 4, the moving platform 2 comprises a slide rail 12, a slide block 21, a vertical plate 22 and a positioning rod 24, the slide block 21 is fixed at the bottom of the vertical plate 22, the slide rail 21 is arranged on the slide rail 12, two sets of slide rails 12 are arranged, the positioning rod 24 is fixed at the top end of the vertical plate 22, the magnetic induction structure 4 comprises a thermocouple 42, two sets of fixed disks 43, an induction coil 44 of a burner, a connecting rod 47 and a heat insulation tile 48, two sets of connecting rods 47 are arranged inside and outside, the induction coil 44 of the burner is arranged between the two sets of connecting rods 47, and both ends of the induction coil 44 of the burner are connected with the thermocouple 42, the two sets of connecting rods 47 are fixed on the two sets of fixing plates 43, and the thermocouple 42 is electrically connected with an external power supply.

In other embodiments, a vertical plate 11 is disposed on one side of the top end of the bottom plate 1, a threaded rod 111 is disposed in the middle of the vertical plate 11, the end of the threaded rod 111 is disposed at the bottom end of the vertical plate 22, a receiving plate 25 is disposed at the bottom end of the vertical plate 22, the slider 21 is fixed to the bottom of the receiving plate 25, a knob is disposed at the other end of the threaded rod 111, and a contact surface between the vertical plate 11 and the threaded rod 111 is a threaded structure.

Through the slide rail 12, the slider 21 and the threaded rod 111 structure that set up, the user can drive work piece and mobile station 2 through threaded rod 111 and remove, carries out induction heating to the assigned position of work piece, has also made things convenient for the user to the removal needs of bulky work piece simultaneously, avoids the condition of handing.

In other embodiments, a plurality of sets of upright posts 45 are disposed on the top end of one side of the bottom plate 1, the top ends of the upright posts 45 are fixedly connected with a mounting side plate 46, the mounting side plate 46 is fixed in the middle of two sets of fixed plates 43, each set of fixed plates 43 is a hollow circular ring structure, the mounting plate 5 is fixed on the edge of the bottom plate 1, and one end of each set of thermocouples 42 is fixed on the mounting plate 5.

In other embodiments, the inner and outer tie bars 47 are fixedly connected at both ends to the fixing plate 43 by means of positioning screws 49, and the heat insulation tiles 48 are fixed in the gaps of the outer tie bars 47. The heat insulation tile 48 structure can keep the inside temperature in the heating process, avoids radiating to the outside, reduces the loss of heat, concentrates the heat on the work piece more, plays energy-conserving effect, and the induction coil 44 structure of the horizontal furnace end can improve the homogeneity of heating.

In other embodiments, the induction coil 44 of the furnace end is a disc-shaped structure, and the ends of both sides are provided with ports 441, and the ports 441 are fixedly connected with the thermocouple 42.

In other embodiments, a right-angle fixing form is adopted between the vertical plate 22 and the bearing plate 25, an adjusting hole 23 in a circular notch shape penetrates through the middle part of the top end of the vertical plate 22, a positioning rod 24 is arranged on one side of the adjusting hole 23, a screw rod structure is arranged in the middle part of the positioning rod 24, and the positioning rod 24 is clamped in the adjusting hole 23 through a screw rod and bolt structure.

The user can be through adjusting bolt structure to not hard up the locating lever 24 structure that has the screw rod, and in the position in adjustment hole 23, and then improve the position of work piece, convenience of customers pushes the work piece in induction coil 44 of furnace end.

In other embodiments, the end of the sliding track 12 is disposed at the bottom of the induction coil 44 of the burner. The longer slide rail 12 structure is convenient for the user to adjust the position of the workpiece when the workpiece is placed inside the induction coil 44 of the burner, and is suitable for large-sized workpieces, and the large workpiece is completely placed inside the induction coil 44 of the burner.

In other embodiments, the length of the adjusting hole 23 is smaller than the radius of the induction coil 44 of the burner, and the structure of the adjusting hole 23 has the function of adjusting the height of the positioning rod 24, so that the device is suitable for workpieces with different sizes, and the application range of the device is improved.

In other embodiments, an outer casing 41 is fixed on the outer side of each group of thermocouples 42, and the outer casing 41 structure protects the inner thermocouple 42 structure on the outer side.

Example two:

an energy-saving IGBT intermediate frequency induction heating method comprises the following steps:

the method comprises the following steps: placing the workpiece on the positioning rod 24; connecting one end of the thermocouple 42 with an external power supply, and preheating to a specified temperature;

step two: rotating the threaded rod 111, pushing the vertical plate 22 forwards through the threaded rod 111, and moving forwards through the sliding rail 12 and the sliding block 21 at the bottom end to drive the workpiece to move towards the middle of the induction coil 44 of the burner and stop at a specified position;

step three: the induction coil 44 structure through the furnace end heats the work piece, after the appointed time, back through threaded rod 111 back-out (because the contact surface of riser 11 and threaded rod 111 is the helicitic texture), drives riser 22 and moves backward, and the user takes off the work piece, reaches induction heating's effect.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an energy-saving IGBT intermediate frequency induction heating equipment, includes bottom plate (1), its characterized in that: the top of bottom plate (1) is provided with mobile station (2), the front end of mobile station (2) is provided with outer cover plate (3), the inside of outer cover plate (3) is provided with magnetism and feels structure (4), the bottom of magnetism is felt structure (4) and is provided with mounting panel (5), including slide rail (12), slider (21), riser (22) and locating lever (24) in mobile station (2), slider (21) are fixed in the bottom of riser (22), just slider (21) set up on slide rail (12), slide rail (12) are provided with two sets, locating lever (24) are fixed in the top of riser (22), including thermocouple (42), two sets of fixed disk (43), induction coil (44) of furnace end, connecting rod (47) and thermal-insulated tile (48) in magnetism is felt structure (4), be provided with two sets inside and outside connecting rod (47), and induction coil (44) of furnace end sets up between two sets of connecting rod (47), the both ends of induction coil (44) of furnace end all are connected with thermocouple (42), and is two sets of connecting rod (47) all are fixed in on two sets of fixed disks (43), thermocouple (42) and external power supply electric connection.

2. The energy-saving IGBT intermediate frequency induction heating equipment of claim 1 is characterized in that: the utility model discloses a bottom plate, including bottom plate (1), the top of bottom plate (1) is provided with riser (11), the middle part of riser (11) is provided with threaded rod (111), the end of threaded rod (111) sets up in the bottom of riser (22), the bottom of riser (22) is provided with accepts board (25), slider (21) are fixed in the bottom of accepting board (25), the other end of threaded rod (111) is provided with the knob.

3. The energy-saving IGBT intermediate frequency induction heating equipment of claim 1, characterized in that: one side top of bottom plate (1) is provided with multiunit stand (45), the top and installation curb plate (46) fixed connection of stand (45), installation curb plate (46) are fixed in the middle part of two sets of fixed disks (43), every group fixed disk (43) are hollow ring structure, the edge of bottom plate (1) is fixed in mounting panel (5), every group the one end of thermocouple (42) is fixed in mounting panel (5).

4. The energy-saving IGBT intermediate frequency induction heating equipment of claim 1, characterized in that: the two ends of the connecting rod (47) on the inner side and the outer side are fixedly connected with the fixed disc (43) through a positioning screw rod (49), and the heat insulation tiles (48) are fixed in the gap of the connecting rod (47) on the outer side.

5. The energy-saving IGBT intermediate frequency induction heating equipment of claim 1 is characterized in that: the induction coil (44) of the furnace end is of a disc-mounted structure, the tail ends of two sides of the induction coil are respectively provided with a port (441), and the ports (441) are fixedly connected with the thermocouple (42).

6. The energy-saving IGBT intermediate frequency induction heating apparatus according to claim 2, characterized in that: the novel bearing is characterized in that a right-angle fixing mode is adopted between the vertical plate (22) and the bearing plate (25), an adjusting hole (23) of a circular groove opening type is penetrated through the middle of the top end of the vertical plate (22), a positioning rod (24) is arranged on one side of the adjusting hole (23), a screw rod structure is arranged in the middle of the positioning rod (24), and the positioning rod (24) is clamped in the adjusting hole (23) through a screw rod and a bolt structure.

7. The energy-saving IGBT intermediate frequency induction heating equipment of claim 6, characterized in that: the tail end of the sliding rail (12) is arranged at the bottom of an induction coil (44) of the furnace end.

8. The energy-saving IGBT intermediate frequency induction heating equipment of claim 6, characterized in that: the length of the adjusting hole (23) is smaller than the radius of an induction coil (44) of the furnace end.

9. The energy-saving IGBT intermediate frequency induction heating equipment of claim 1, characterized in that: and the outer side of each group of thermocouples (42) is fixed with a shell (41).

10. The energy-saving intermediate frequency induction heating method of the IGBT according to the claims 1-9, characterized in that: the method comprises the following steps:

step three: the induction coil structure through the furnace end heats the work piece, after appointed time, back through the threaded rod back-out, drives the riser and removes backward, and the user takes off the work piece, reaches induction heating's effect.