Magnetic core heat treatment device

Abstract

The utility model discloses a magnetic core heat treatment device, which belongs to the technical field of magnetic core production, and comprises an annealing furnace, a heat exchanger and a heat exchanger, a conveyor belt; the tray comprises two isosceles trapezoid discs which are integrally formed and symmetrically arranged, the upper surfaces of the two isosceles trapezoid discs are arranged in a coplanar mode, the upper bottom edges of the two isosceles trapezoid discs are connected, the lower bottom edges and the waist edges of the isosceles trapezoid discs are each perpendicularly provided with a fence, the multiple fences are sequentially connected end to end, and the upper surfaces of the two isosceles trapezoid discs are arranged in a coplanar mode. And the conveying belt is used for conveying the tray into the annealing cavity. According to the utility model, the magnetic core is in an ideal annealing temperature area, and the annealing quality of the magnetic core is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic core production, in particular to a magnetic core heat treatment device. Background Art

[0002] The soft magnetic properties of the core are formed by annealing at an appropriate temperature and time in a magnetic field. One of the purposes of annealing is to reduce the harmful effects of the residual stress generated, and another purpose is to determine the "easy magnetization axis" inside the object being annealed, that is, to determine an optimal magnetic orientation that can ensure that the annealed object has low core loss and excitation power. During annealing, it is necessary to ensure that the core is heated evenly and the temperature of the core heating is accurate, thereby ensuring the performance of the magnetic core.

[0003] When annealing the magnetic core, the magnetic core is generally placed on a tray, and the tray is transported to the annealing furnace by a conveyor belt. However, in the prior art, the tray is generally a rectangular tray, and the operator randomly places a batch of magnetic cores to be annealed on the tray; and the temperature distribution in the annealing furnace is uneven. If the magnetic core is not placed in a suitable position, the annealing temperature of the magnetic core will be insufficient or overheated, thereby affecting the performance of the magnetic core. Utility Model Content

[0004] The utility model aims to provide a magnetic core heat treatment device to solve the technical problem in the prior art that the tray is generally a rectangular tray. If the magnetic core is not placed in an appropriate position, the annealing temperature of the magnetic core will be insufficient or overheated, thereby affecting the performance of the magnetic core.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] A magnetic core heat treatment device, comprising:

[0007] An annealing furnace, wherein an annealing chamber with openings at both ends is provided in the annealing furnace;

[0008] conveyor;

[0009] The tray comprises two isosceles trapezoidal trays which are integrally formed and symmetrically arranged, the upper surfaces of the two isosceles trapezoidal trays are arranged coplanarly, the upper bottom edges of the two isosceles trapezoidal trays are arranged in connection, and enclosures are vertically arranged at the lower bottom edges and waist edges of the isosceles trapezoidal trays, and several of the enclosures are connected end to end in sequence, and the conveyor belt is used to transport the tray into the annealing chamber.

[0010] As a preferred embodiment of the magnetic core heat treatment device, each of the isosceles trapezoidal disks is provided with a handle.

[0011] As a preferred embodiment of the magnetic core heat treatment device, the handle is provided on the outer side surface of the enclosure of at least one waist edge of the isosceles trapezoidal disk.

[0012] As a preferred embodiment of the above-mentioned magnetic core heat treatment device, the handle is welded to the enclosure.

[0013] As a preferred embodiment of the magnetic core heat treatment device, a stacking positioning piece is provided on the lower surface of at least one of the isosceles trapezoidal disks, and the stacking positioning piece is configured to abut against the inner side surface of the enclosure of the tray stacked below.

[0014] As a preferred embodiment of the above-mentioned magnetic core heat treatment device, the stacking positioning member includes a first positioning protrusion, which is arranged at the lower bottom corner of the lower surface of the isosceles trapezoidal disk and is arranged parallel to the lower bottom edge of the isosceles trapezoidal disk, and the first positioning protrusion is configured to: be able to abut against the inner side surface of the enclosure at the lower bottom edge of the corresponding lower bottom corner of the tray stacked below.

[0015] As a preferred embodiment of the above-mentioned magnetic core heat treatment device, the stacking positioning member also includes a second positioning protrusion, which is arranged on the lower surface of the isosceles trapezoidal disk and is arranged at an angle with the first positioning protrusion, and the second positioning protrusion is parallel to the waist edge corresponding to the lower bottom corner, and the second positioning protrusion is configured to be able to abut against the inner side surface of the enclosure at the waist edge of the corresponding lower bottom corner of the tray stacked below.

[0016] As a preferred embodiment of the magnetic core heat treatment device, the stacking positioning members are provided at the lower bottom corners of the lower surfaces of the two isosceles trapezoidal disks.

[0017] As a preferred embodiment of the magnetic core heat treatment device, the stacking positioning member is welded to the lower surface of the isosceles trapezoidal disk.

[0018] As a preferred embodiment of the magnetic core heat treatment device, the distance between the lower bases of the two isosceles trapezoidal disks is not less than 700 mm.

[0019] Beneficial effects of the utility model:

[0020] When the magnetic core heat treatment device proposed by the utility model is used, the operator places the multiple magnetic cores to be annealed on the tray one by one. When placing the magnetic cores, the upper surface of the isosceles trapezoidal disk can be used to place the magnetic cores, and a plurality of enclosures are connected end to end in sequence to form a peripheral edge as a whole. The peripheral edge can prevent the magnetic cores from detaching from the isosceles trapezoidal disk during transportation. The upper and lower edges of the two isosceles trapezoidal disks are connected to each other, so that the shape of the entire tray is roughly "bow tie" shaped, which is the shape of the irregular area of ​​the ideal annealing temperature in the annealing chamber obtained by simulation analysis. A plurality of enclosures are connected end to end in sequence to limit the boundary of the irregular shape. The positions within the boundary are all in the ideal annealing temperature area. The operator can directly place the magnetic core within the boundary, so that the magnetic core is in the ideal annealing temperature area, thereby ensuring the annealing quality of the magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a magnetic core heat treatment device provided by an embodiment of the utility model;

[0023] Figure 2 yes Figure 1 The schematic diagram after the annealing furnace is hidden in the middle;

[0024] Figure 3 This is a schematic diagram of the structure in which the magnetic core provided by the embodiment of the utility model is placed on a tray;

[0025] Figure 4 It is a structural schematic diagram of a tray provided by an embodiment of the utility model from one perspective;

[0026] Figure 5 is a structural schematic diagram of a tray provided by an embodiment of the utility model from another perspective;

[0027] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0028] In the figure:

[0029] 10. Magnetic core;

[0030] 1. Annealing furnace; 11. Annealing chamber;

[0031] 2. Conveyor belt;

[0032] 3. Tray; 31. Isosceles trapezoidal tray; 32. Baffle; 33. Stacking positioning piece; 331. First positioning protrusion; 332. Second positioning protrusion; 34. Handle. DETAILED DESCRIPTION

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-Figure 6 , this embodiment provides a magnetic core heat treatment device.

[0037] Specifically, the magnetic core heat treatment device includes an annealing furnace 1 , a conveyor belt 2 and a tray 3 .

[0038] An annealing chamber 11 with openings at both ends is arranged in the annealing furnace 1 .

[0039] The tray 3 includes two isosceles trapezoidal trays 31 that are integrally formed and symmetrically arranged. The upper surfaces of the two isosceles trapezoidal trays 31 are arranged coplanarly, and the upper bottom edges of the two isosceles trapezoidal trays 31 are connected to each other. The lower bottom edges and waist edges of the isosceles trapezoidal trays 31 are vertically provided with enclosures 32. Several enclosures 32 are connected end to end in sequence. The conveyor belt 2 is used to transport the tray 3 to the annealing chamber 11.

[0040] That is, the two isosceles trapezoidal disks 31 form an integrally formed “bow-tie” shaped tray body, and the tray body can hold the magnetic core 10 .

[0041] It can be understood that the symmetry axis of the tray 3 is the upper bottom edge of the isosceles trapezoidal tray 31 .

[0042] It can be understood that the magnetic core heat treatment device also includes a driving device for driving the conveyor belt 2 to move. The driving device for driving the conveyor belt 2 to move belongs to the prior art and will not be introduced in detail here.

[0043] What needs to be explained is that for an isosceles trapezoid, the two parallel sides are called the base sides of the isosceles trapezoid, the shorter side is called the upper base side; the longer side is called the lower base side; the two non-parallel sides are called waist sides; the angle between the upper base side and the waist side is called the upper base angle; the angle between the lower base side and the waist side is called the lower base angle.

[0044] When the magnetic core heat treatment device provided in this embodiment is used, the operator places the multiple magnetic cores 10 to be annealed on the tray 3 one by one. When placing the magnetic cores 10, the upper surface of the isosceles trapezoidal disk 31 can be used to place the magnetic cores 10, and the multiple enclosures 32 are connected end to end in sequence to form a surrounding edge as a whole, which can prevent the magnetic cores 10 from detaching from the isosceles trapezoidal disk 31 during transportation. The upper and lower edges of the two isosceles trapezoidal disks 31 are connected to each other, so that the shape of the entire tray 3 is roughly "bow tie" shaped, which is the shape of the irregular area of ​​the ideal annealing temperature in the annealing chamber 11 obtained by simulation analysis. The multiple enclosures 32 are connected end to end in sequence to limit the boundary of the irregular shape. The positions within the boundary are all in the ideal annealing temperature area. The operator directly places the magnetic core 10 within the boundary, so that the magnetic core 10 is in the ideal annealing temperature area, ensuring the annealing quality of the magnetic core 10.

[0045] Preferably, the distance between the lower bases of the two isosceles trapezoidal disks 31 is not less than 700 mm.

[0046] Optionally, in this embodiment, the distance between the lower bases of the two isosceles trapezoidal disks 31 is 757 mm.

[0047] Specifically, when the tray 3 is located in the annealing chamber 11 , the distance between the edge of the tray 3 and the opening of the annealing chamber 11 is 24 mm.

[0048] Furthermore, in order to facilitate the transportation of the tray 3 , each isosceles trapezoidal plate 31 is provided with a handle 34 .

[0049] Optionally, a handle 34 is provided on the outer side surface of the enclosure 32 of at least one waist edge of the isosceles trapezoidal disk 31 .

[0050] Optionally, in this embodiment, a handle 34 is provided on the outer side of the enclosure 32 of one waist edge of the isosceles trapezoidal disk 31. The two handles 34 are respectively located on both sides of the symmetry line of the isosceles trapezoidal disk 31.

[0051] Specifically, the handle 34 is welded to the enclosure 32 .

[0052] Furthermore, in actual use, when the tray 3 is not in use, in order to save space, multiple trays 3 are generally stacked.

[0053] In order to quickly stack the trays 3 , a stacking positioning piece 33 is provided on the lower surface of at least one isosceles trapezoidal disk 31 . The stacking positioning piece 33 is configured to abut against the inner side surface of the enclosure 32 of the tray 3 stacked below.

[0054] Specifically, see Figure 5 and Figure 6 The stacking positioning member 33 includes a first positioning protrusion 331, which is arranged at the lower bottom corner of the lower surface of the isosceles trapezoidal disk 31 and is arranged parallel to the lower bottom edge of the isosceles trapezoidal disk 31. The first positioning protrusion 331 is configured to be able to abut against the inner side surface of the enclosure 32 at the lower bottom edge of the corresponding lower bottom corner of the tray 3 stacked below.

[0055] It can be understood that, in the two stacked trays 3, the two lower bottom corners of the two trays 3 that are arranged opposite to each other are the two lower bottom corners that correspond to each other.

[0056] Furthermore, the stacking positioning member 33 also includes a second positioning protrusion 332, which is arranged on the lower surface of the isosceles trapezoidal disk 31 and is arranged at an angle to the first positioning protrusion 331. The second positioning protrusion 332 is parallel to the waist edge corresponding to the lower bottom corner, and the second positioning protrusion 332 is configured to be able to abut against the inner side surface of the enclosure 32 at the waist edge of the corresponding lower bottom corner of the tray 3 stacked below.

[0057] Preferably, stacking positioning members 33 are provided at the lower bottom corners of the lower surfaces of the two isosceles trapezoidal disks 31 .

[0058] That is, each of the four corners of the lower surface of the tray 3 is provided with a stacking positioning piece 33. When two trays 3 need to be stacked, the first positioning protrusion 331 of the stacking positioning piece 33 of the upper tray 3 abuts against the inner side surface of the enclosure 32 at the lower bottom edge of the corresponding lower bottom corner of the tray 3 stacked below, and the stacking positioning piece 33 of the upper tray 3 abuts against the inner side surface of the enclosure 32 at the waist edge of the corresponding lower bottom corner of the tray 3 stacked below.

[0059] Preferably, the stacking positioning member 33 is welded to the lower surface of the isosceles trapezoidal disk 31 .

[0060] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Magnetic core heat treatment device, It is characterized in that include: An annealing furnace (1), wherein an annealing chamber (11) having openings at both ends is arranged in the annealing furnace (1); Conveyor belt (2); A tray (3), the tray (3) comprising two isosceles trapezoidal trays (31) which are integrally formed and symmetrically arranged, the upper surfaces of the two isosceles trapezoidal trays (31) being arranged coplanarly, the upper bottom edges of the two isosceles trapezoidal trays (31) being arranged in contact with each other, and enclosures (32) being vertically arranged at the lower bottom edges and waist edges of the isosceles trapezoidal trays (31), and a plurality of the enclosures (32) being connected end to end in sequence, and the conveyor belt (2) being used to convey the tray (3) into the annealing chamber (11).

2. The magnetic core heat treatment device according to claim 1, It is characterized in that Each of the isosceles trapezoidal plates (31) is provided with a handle (34).

3. The magnetic core heat treatment device according to claim 2, It is characterized in that The handle (34) is provided on the outer side surface of the enclosure (32) of at least one waist edge of the isosceles trapezoidal plate (31).

4. The magnetic core heat treatment device according to claim 3, It is characterized in that The handle (34) is welded to the enclosure (32).

5. The magnetic core heat treatment device according to claim 1, It is characterized in that A stacking positioning member (33) is provided on the lower surface of at least one of the isosceles trapezoidal plates (31), and the stacking positioning member (33) is configured to abut against the inner side surface of the enclosure (32) of the tray (3) stacked below.

6. The magnetic core heat treatment device according to claim 5, It is characterized in that The stacking positioning member (33) includes a first positioning protrusion (331), which is arranged at the lower bottom corner of the lower surface of the isosceles trapezoidal disk (31) and is arranged parallel to the lower bottom edge of the isosceles trapezoidal disk (31), and the first positioning protrusion (331) is configured to be able to abut against the inner side surface of the enclosure (32) at the lower bottom edge of the corresponding lower bottom corner of the tray (3) stacked below.

7. The magnetic core heat treatment device according to claim 6, It is characterized in that The stacking positioning member (33) also includes a second positioning protrusion (332), which is arranged on the lower surface of the isosceles trapezoidal disk (31) and is arranged at an angle with the first positioning protrusion (331), and the second positioning protrusion (332) is parallel to the waist edge corresponding to the lower bottom corner, and the second positioning protrusion (332) is configured to be able to abut against the inner side surface of the enclosure (32) at the waist edge of the corresponding lower bottom corner of the tray (3) stacked below.

8. The magnetic core heat treatment device according to claim 5, It is characterized in that The stacking positioning pieces (33) are provided at the lower corners of the lower surfaces of the two isosceles trapezoidal plates (31).

9. The magnetic core heat treatment device according to claim 5, It is characterized in that The stacking positioning member (33) is welded to the lower surface of the isosceles trapezoidal disk (31).

10. The magnetic core heat treatment device according to any one of claims 1 to 9, It is characterized in that The distance between the lower bases of the two isosceles trapezoidal plates (31) is not less than 700 mm.

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