Double-layer annealing frame and annealing furnace
By designing a double-layer annealing rack, the problem of limited capacity of a single-layer annealing rack was solved, enabling efficient production of amorphous three-dimensional wound iron cores and simplifying the structure and connection of copper plates.
Patent Information
- Application Number
- CN202422961009.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In existing technologies, when using a single-layer annealing rack for amorphous three-dimensional wound cores, the number of racks that can accommodate the cores is relatively small, resulting in low production efficiency.
Design a double-layer annealing rack, including a lower and upper annealing rack connected vertically, for placing amorphous three-dimensional wound iron cores, and connected to the annealing furnace electrodes through copper plates to provide a magnetic field for the iron cores. The copper plates pass through the iron core windows to simplify the structure.
The number of amorphous three-dimensional coiled iron cores that can be accommodated in the annealing process has been increased, improving production efficiency and simplifying the design and connection of the copper plate.
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Figure CN223566430U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to transformer manufacturing technical field, concretely relates to a double -deck annealing frame and annealing furnace. BACKGROUND
[0002] In power transmission and transformation system, power transformer is the core equipment of power transformation, transmission and distribution. Amorphous three-dimensional winding core transformer is a transformer made of new type of magnetic material-amorphous alloy core. It reduces no-load loss by about 75% and no-load current by about 80% compared with silicon steel sheet as core transformer. It is an ideal distribution transformer in energy saving effect at present stage.
[0003] After the manufacture of amorphous three-dimensional winding core, annealing is needed. At present, amorphous three-dimensional winding core is annealed by single-layer annealing frame. The single-layer annealing frame can accommodate less amorphous three-dimensional winding core at a time, which leads to less amorphous three-dimensional winding core for annealing in one annealing process and low production efficiency. UTILITY MODEL CONTENT
[0004] The utility model solves the above-mentioned problems existing in the prior art and provides a double-layer annealing frame and annealing furnace, so that the annealing frame can accommodate more amorphous three-dimensional winding core, thereby increasing the number of amorphous three-dimensional winding core for annealing in one annealing process and improving production efficiency.
[0005] In the first aspect, the utility model provides a double-layer annealing frame. The double-layer annealing frame is used for placing amorphous three-dimensional winding core. The double-layer annealing frame comprises an annealing frame body and a copper plate. The annealing frame body comprises a lower annealing frame and an upper annealing frame connected in sequence. The lower annealing frame and the upper annealing frame are both used for placing the amorphous three-dimensional winding core. Each amorphous three-dimensional winding core has a core window. The copper plate is arranged on the lower annealing frame and the upper annealing frame. The two ends of the copper plate are connected with two electrodes in the annealing furnace, so as to provide a magnetic field for the amorphous three-dimensional winding core during annealing. The lower annealing frame and the upper annealing frame can both place N amorphous three-dimensional winding cores. N is an even number and is greater than or equal to 2. The N amorphous three-dimensional winding cores placed on the lower annealing frame or the upper annealing frame can be arranged in a column in a second direction, or arranged in an even number of rows in a first direction and an even number of columns in a second direction. Each column of amorphous three-dimensional winding cores comprises one or more pairs of amorphous three-dimensional winding cores. In each pair of amorphous three-dimensional winding cores, the core windows of the two amorphous three-dimensional winding cores are arranged opposite to each other. The first direction and the second direction are two directions perpendicular to each other in a horizontal plane. The copper plate can pass through all the core windows of the amorphous three-dimensional winding cores.
[0006] In some embodiments, the bronze medal includes two sub-bronze medals and a first connecting line. The two sub-bronze medals are respectively arranged on the lower annealing frame and the upper annealing frame, the sub-bronze medal arranged on the lower annealing frame passes through all the core windows of all amorphous solid-state core stacks on the lower annealing frame, and the sub-bronze medal arranged on the upper annealing frame passes through all the core windows of all amorphous solid-state core stacks on the upper annealing frame. The first connecting line is arranged on the upper annealing frame and is used to connect the first ends of the two sub-bronze medals. The second ends of the two sub-bronze medals are respectively connected with two electrodes in the annealing furnace.
[0007] In some embodiments, N=4, and the four amorphous solid-state core stacks are arranged in two rows in the first direction and two columns in the second direction. Each of the amorphous solid-state core stacks includes one first core window and two second core windows, and the first core window and the two second core windows are uniformly distributed around the axis of the amorphous solid-state core stack. In the two amorphous solid-state core stacks of any column, the two first core windows are arranged opposite to each other. The two columns of amorphous solid-state core stacks are respectively a first column of amorphous solid-state core stacks and a second column of amorphous solid-state core stacks. Each of the sub-bronze medals includes four C-shaped frames, and the four C-shaped frames are respectively a horizontally arranged first C-shaped frame, a second C-shaped frame, a third C-shaped frame, and a fourth C-shaped frame. The first C-shaped frame and the second C-shaped frame are arranged symmetrically opposite to each other, and the opening directions of the first C-shaped frame and the second C-shaped frame are opposite to each other. The middle parts of the first C-shaped frame and the second C-shaped frame penetrate the two first core windows of the first column of amorphous solid-state core stacks, and the two ends of the first C-shaped frame penetrate one second core window of each of the front and rear amorphous solid-state core stacks in the first column of amorphous solid-state core stacks, and the two ends of the second C-shaped frame penetrate another second core window of each of the front and rear amorphous solid-state core stacks in the first column of amorphous solid-state core stacks. The third C-shaped frame and the fourth C-shaped frame are arranged symmetrically opposite to each other, and the opening directions of the third C-shaped frame and the fourth C-shaped frame are opposite to each other. The middle parts of the third C-shaped frame and the fourth C-shaped frame penetrate the two first core windows of the second column of amorphous solid-state core stacks, and the two ends of the third C-shaped frame penetrate one second core window of each of the front and rear amorphous solid-state core stacks in the second column of amorphous solid-state core stacks, and the two ends of the fourth C-shaped frame penetrate another second core window of each of the front and rear amorphous solid-state core stacks in the second column of amorphous solid-state core stacks. The leading end of the first C-shaped frame forms the first end of the sub-bronze medal, the first C-shaped frame is connected with one end of the fourth C-shaped frame through a second connecting line, the other end of the fourth C-shaped frame is connected with one end of the second C-shaped frame through a third connecting line, the other end of the second C-shaped frame is connected with the leading end of the third C-shaped frame, and the trailing end of the third C-shaped frame forms the second end of the sub-bronze medal.
[0008] In some embodiments, the bronze medal includes a first lead wire and a second lead wire. The first lead wire and the second lead wire are both arranged at the edge of the lower annealing frame. The tail end of the third C-shaped frame arranged on the lower annealing frame is connected with one electrode in the annealing furnace through the first lead wire, and the tail end of the third C-shaped frame arranged on the upper annealing frame is connected with another electrode in the annealing furnace through the second lead wire.
[0009] In some embodiments, the edge of the lower annealing frame is provided with a plurality of fixing plates. The plurality of fixing plates are used to fix the first lead wire and the second lead wire at the edge of the lower annealing frame.
[0010] In some embodiments, the lower annealing frame and the upper annealing frame are connected with each other through a connecting rod. The annealing frame body further includes a reinforcing rod, one end of the reinforcing rod is fixed on the connecting rod, and the other end is fixed on the frame of the upper annealing frame.
[0011] In some embodiments, the upper end of the upper annealing frame is provided with an anti-toppling guardrail.
[0012] In some embodiments, the lower annealing frame includes a first support plate and a first annular fixing frame, the first annular fixing frame is fixed on the outer edge of the first support plate, and the first support plate is provided with a first heat dissipation hole; and / or, the upper annealing frame includes a second support plate and a second annular fixing frame, the second annular fixing frame is fixed on the outer edge of the second support plate, and the second support plate is provided with a second heat dissipation hole; the first connecting wire is arranged on the second annular fixing frame.
[0013] Therefore, the double-layer annealing frame provided by the embodiment of the present application can accommodate more amorphous three-dimensional roll iron cores at one time, compared with the single-layer annealing frame in the prior art, the number of amorphous three-dimensional roll iron cores subjected to annealing in one annealing process can be increased, and the overall production efficiency of the amorphous three-dimensional roll iron cores can be improved. In addition, the N amorphous three-dimensional roll iron cores placed on the lower annealing frame or the upper annealing frame can be arranged in a column in the second direction, or arranged in an even number of rows in the first direction and an even number of columns in the second direction, each column of amorphous three-dimensional roll iron cores includes one or more pairs of amorphous three-dimensional roll iron cores, and the iron core windows of the two amorphous three-dimensional roll iron cores in each pair of amorphous three-dimensional roll iron cores can be arranged opposite to each other, so that the amorphous three-dimensional roll iron cores can be arranged in order, thereby facilitating the copper medal to pass through all the iron core windows of the amorphous three-dimensional roll iron cores, and being beneficial to simplifying the structure of the copper medal and reducing the design and connection difficulty of the copper medal.
[0014] Secondly, this utility model embodiment also provides an annealing furnace, which includes an annealing furnace body and the double-layer annealing rack mentioned in the first aspect. Two electrodes are disposed inside the annealing furnace body. The double-layer annealing rack can be placed inside the annealing furnace body, and the two ends of the copper plates of the double-layer annealing rack are respectively connected to the two electrodes in the annealing furnace.
[0015] In some embodiments, the two electrodes within the annealing furnace body are elastic electrodes. When the double-layer annealing rack is placed at the target position within the annealing furnace body, the two ends of the copper plate of the double-layer annealing rack abut against the two electrodes in the annealing furnace.
[0016] The annealing furnace provided in this embodiment of the present invention has the same beneficial effects as the above-mentioned double-layer annealing rack, and will not be described in detail here. Attached Figure Description
[0017] Figure 1 : A structural diagram of a double-layer annealing rack provided in an embodiment of this utility model;
[0018] Figure 2 : Front view of a double-layer annealing rack provided in an embodiment of this utility model;
[0019] Figure 3 : A top view of a double-layer annealing rack provided in an embodiment of this utility model;
[0020] Figure 4 : A structural diagram of a bronze plaque provided in an embodiment of this utility model;
[0021] Figure 5 : A structural diagram of an annealing rack body provided in an embodiment of this utility model;
[0022] Figure 6 : A front view of an annealing rack body provided in an embodiment of this utility model. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] Example 1:
[0025] like Figure 1 and Figure 2 As shown, this embodiment of the utility model provides a double-layer annealing rack for placing amorphous three-dimensional wound iron core 1, which is applied in the annealing process of amorphous three-dimensional wound iron core 1.
[0026] For example, the specifications of the amorphous three-dimensional wound core 1 can be 50kVA, 100kVA, 200kVA, 400kVA, 500kVA or 630kVA, etc.
[0027] As shown in Figure 1 and Figure 2 , the double-layer annealing frame comprises an annealing frame body and a copper plate 4. The annealing frame body comprises a lower annealing frame 2 and an upper annealing frame 3 connected in sequence, and both the lower annealing frame 2 and the upper annealing frame 3 are used for placing the amorphous three-dimensional core 1. Each amorphous three-dimensional core 1 has a core window. The copper plate 4 is arranged on the lower annealing frame 2 and the upper annealing frame 3, and both ends of the copper plate 4 are connected with two electrodes in the annealing furnace respectively, so as to provide a magnetic field for the amorphous three-dimensional core 1 during annealing.
[0028] Exemplarily, both the lower annealing frame 2 and the upper annealing frame 3 are horizontally arranged, so as to improve the stability of the amorphous three-dimensional core 1 placed on the lower annealing frame 2 and the upper annealing frame 3.
[0029] Exemplarily, both the lower annealing frame 2 and the upper annealing frame 3 are made of high-temperature-resistant metal materials, so that the lower annealing frame 2 and the upper annealing frame 3 have high strength and high-temperature-resistant performance, thereby providing good support for the amorphous three-dimensional core 1 placed in the lower annealing frame 2 and the upper annealing frame 3, and maintaining high structural stability in the annealing furnace.
[0030] Exemplarily, the two electrodes in the annealing furnace are a positive electrode and a negative electrode respectively, and both ends of the copper plate 4 are connected with the positive electrode and the negative electrode respectively, so as to form a current loop on the copper plate 4.
[0031] Through the above arrangement, both the lower annealing frame 2 and the upper annealing frame 3 can place the amorphous three-dimensional core 1, so that the double-layer annealing frame can accommodate more amorphous three-dimensional cores 1 at a time, compared with the single-layer annealing frame in the prior art, the number of amorphous three-dimensional cores 1 annealed at a time in the annealing process can be increased, and the overall production efficiency of the amorphous three-dimensional core 1 can be improved.
[0032] In combination with Figure 1 and Figure 3 , both the lower annealing frame 2 and the upper annealing frame 3 can place N amorphous three-dimensional cores 1, N is an even number and greater than or equal to 2, and the N amorphous three-dimensional cores 1 placed on the lower annealing frame 2 or the upper annealing frame 3 can be arranged in a column in the second direction Y, or arranged in an even number of rows in the first direction X and an even number of columns in the second direction Y, each column of amorphous three-dimensional cores 1 comprises one or more pairs of amorphous three-dimensional cores 1, and in each pair of amorphous three-dimensional cores 1, the core windows of the two amorphous three-dimensional cores 1 can be arranged opposite to each other; the first direction X and the second direction Y are two directions perpendicular to each other in a horizontal plane. The copper plate 4 can pass through all the core windows of all the amorphous three-dimensional cores 1.
[0033] For example, the lower annealing rack 2 and the upper annealing rack 3 are identical in shape and size. The amorphous three-dimensional wound iron cores 1 placed on the lower annealing rack 2 and the upper annealing rack 3 are arranged in the same way.
[0034] For example, the value of N can be 2, 4, or 6, etc.
[0035] It should be noted that when N=6, it means that the maximum number of amorphous three-dimensional coiled iron cores 1 that can be placed in the lower annealing rack 2 and the upper annealing rack 3 is six.
[0036] Understandably, at this time, the number of amorphous three-dimensional coiled iron cores 1 placed in the lower annealing rack 2 and the upper annealing rack 3 can be one, two, three, four, etc. That is, the number of amorphous three-dimensional coiled iron cores 1 placed in the lower annealing rack 2 and the upper annealing rack 3 can be flexibly placed according to actual production needs, and it is not necessary to completely fill the lower annealing rack 2 and the upper annealing rack 3.
[0037] For example, such as Figure 3 As shown, Figure 3 The horizontal direction is the first direction X, and the vertical direction is the second direction Y.
[0038] For example, when N amorphous three-dimensional coiled iron cores 1 can all be arranged in a row in the second direction Y, the shapes of the lower annealing rack 2 and the upper annealing rack 3 can be set to elongated strips. During annealing, each amorphous three-dimensional coiled iron core 1 can be in full contact with the internal environment of the annealing furnace, improving the annealing efficiency and temperature uniformity of the amorphous three-dimensional coiled iron core 1 during annealing.
[0039] When N amorphous three-dimensional coiled iron cores 1 are arranged in an even number of rows in the first direction X and in an even number of columns in the second direction Y, they can be arranged in two rows in the first direction X and in two columns in the second direction Y, or in two rows in the first direction X and in four columns in the second direction Y, etc.
[0040] For example, the copper plate 4 includes a plurality of sequentially connected connecting segments that pass through all the core windows, so that the copper plate 4 provides a magnetic field to the amorphous three-dimensional wound core 1 during annealing.
[0041] For example, the bronze plate 4 includes a straight segment. By enabling the core windows of the two amorphous three-dimensional coiled iron cores 1 in each pair to be arranged facing each other, the straight segment in the bronze plate 4 can pass through the two facing core windows of the two amorphous three-dimensional coiled iron cores 1 at once, which helps to reduce the number of connecting segments in the bronze plate 4.
[0042] Through the above arrangement, the amorphous three-dimensional core 1 can be arranged in order, so that the copper plate 4 can pass through all the core windows of all the amorphous three-dimensional cores 1, which is beneficial to simplify the structure of the copper plate 4 and reduce the design and connection difficulty of the copper plate 4.
[0043] Therefore, the double-layer annealing frame provided by the embodiment of the present application can accommodate more amorphous three-dimensional cores 1 at one time, compared with the single-layer annealing frame in the prior art, the number of amorphous three-dimensional cores 1 that can be annealed in one annealing process is increased, and the overall production efficiency of the amorphous three-dimensional cores 1 is improved. In addition, by arranging the N amorphous three-dimensional cores 1 placed on the lower-layer annealing frame 2 or the upper-layer annealing frame 3 in a column in the second direction Y, or arranging them in an even number of rows in the first direction X and an even number of columns in the second direction Y, each column of amorphous three-dimensional cores 1 includes one or more pairs of amorphous three-dimensional cores 1, and the core windows of the two amorphous three-dimensional cores 1 in each pair of amorphous three-dimensional cores 1 can be arranged opposite to each other, the amorphous three-dimensional cores 1 can be arranged in order, so that the copper plate 4 can pass through all the core windows of all the amorphous three-dimensional cores 1, which is beneficial to simplify the structure of the copper plate 4 and reduce the design and connection difficulty of the copper plate 4.
[0044] In some embodiments, in combination with Figure 1 , Figure 3 and Figure 4 , the copper plate 4 includes two sub-copper plates 5 and a first connecting line 6. The two sub-copper plates 5 are arranged on the lower-layer annealing frame 2 and the upper-layer annealing frame 3 respectively, the sub-copper plate 5 arranged on the lower-layer annealing frame 2 passes through all the core windows of all the amorphous three-dimensional cores 1 on the lower-layer annealing frame 2, and the sub-copper plate 5 arranged on the upper-layer annealing frame 3 passes through all the core windows of all the amorphous three-dimensional cores 1 on the upper-layer annealing frame 3. The first connecting line 6 is arranged on the upper-layer annealing frame 3 and is used to connect the first ends of the two sub-copper plates 5. The second ends of the two sub-copper plates 5 are respectively connected with two electrodes in the annealing furnace.
[0045] For example, the positions of the first ends of the two sub-copper plates 5 correspond to each other in the up-down direction, and the first connecting line 6 is vertically arranged to conveniently connect the first ends of the two sub-copper plates 5.
[0046] Through the above arrangement, the first ends of the two sub-copper plates 5 can be connected by the first connecting line 6, the second ends of the two sub-copper plates 5 are respectively connected with two electrodes in the annealing furnace to form a current loop, so that the two sub-copper plates 5 can provide a magnetic field for the amorphous three-dimensional cores 1 on the lower-layer annealing frame 2 and the upper-layer annealing frame 3 respectively.
[0047] In some embodiments, as Figure 1 and Figure 3As shown, N=4, and the four amorphous three-dimensional coiled iron cores 1 are arranged in two rows in the first direction X and in two columns in the second direction Y. Each amorphous three-dimensional coiled iron core 1 includes one first iron core window and two second iron core windows, which are uniformly distributed around the axis of the amorphous three-dimensional coiled iron core. In any two amorphous three-dimensional coiled iron cores 1 in a column, the two first iron core windows are positioned opposite each other. The two columns of amorphous three-dimensional coiled iron cores are the first column of amorphous three-dimensional coiled iron cores and the second column of amorphous three-dimensional coiled iron cores, respectively.
[0048] like Figure 3 As shown, the two second core windows face opposite sides in the first direction X.
[0049] For example, Figure 3 In the middle, the column of amorphous three-dimensional coiled iron cores 1 on the left is the first column of amorphous three-dimensional coiled iron cores, and the column of amorphous three-dimensional coiled iron cores 1 on the right is the second column of amorphous three-dimensional coiled iron cores.
[0050] Combination Figure 1 , Figure 3 and Figure 4 Each sub-bronze plate 5 includes four C-shaped frames 7, namely, a first C-shaped frame 71, a second C-shaped frame 72, a third C-shaped frame 73, and a fourth C-shaped frame 74, which are horizontally arranged. The first C-shaped frames 71 and the second C-shaped frames 72 are arranged symmetrically back to back, with their opening directions opposite. The middle of the first C-shaped frames 71 and the second C-shaped frames 72 are both penetrated through two first core windows of the first row of amorphous three-dimensional rolled iron cores. The two ends of the first C-shaped frame 71 are respectively penetrated through one second core window of each of the two front and rear amorphous three-dimensional rolled iron cores 1 in the first row of amorphous three-dimensional rolled iron cores. The two ends of the second C-shaped frame 72 are respectively penetrated through one additional second core window of each of the two front and rear amorphous three-dimensional rolled iron cores 1 in the first row of amorphous three-dimensional rolled iron cores.
[0051] like Figure 3 As shown, Figure 3 In the middle, from left to right, the first C-shaped frame 71, the second C-shaped frame 72, the third C-shaped frame 73, and the fourth C-shaped frame 74 are arranged in sequence.
[0052] For example, such as Figure 4 As shown, the first C-shaped frame 71 and the second C-shaped frame 72 have a gap in the first direction X.
[0053] With the above configuration, the first C-shaped frame 71 and the second C-shaped frame 72 can pass through all the core windows of the first column of amorphous three-dimensional coiled iron core.
[0054] Combination Figure 1 , Figure 3 and Figure 4The third C-shaped frame 73 and the fourth C-shaped frame 74 are symmetrically arranged opposite to each other, and the opening directions of the third C-shaped frame 73 and the fourth C-shaped frame 74 are opposite. The middle portions of the third C-shaped frame 73 and the fourth C-shaped frame 74 penetrate two first core windows of the second column of amorphous solid-state core. The two ends of the third C-shaped frame 73 penetrate two second core windows of the front and rear amorphous solid-state cores 1 in the second column of amorphous solid-state cores respectively. The two ends of the fourth C-shaped frame 74 penetrate the other two second core windows of the front and rear amorphous solid-state cores 1 in the second column of amorphous solid-state cores respectively.
[0055] As shown in Figure 4 , the third C-shaped frame 73 and the fourth C-shaped frame 74 have gaps in the first direction X.
[0056] Through the above arrangement, the third C-shaped frame 73 and the fourth C-shaped frame 74 can penetrate all the core windows of the second column of amorphous solid-state cores.
[0057] In combination with Figure 3 and Figure 4 , the leading end of the first C-shaped frame 71 forms the first end of the sub-copper medal 5. The first C-shaped frame 71 is connected to one end of the fourth C-shaped frame 74 through the second connecting line 8. The other end of the fourth C-shaped frame 74 is connected to one end of the second C-shaped frame 72 through the third connecting line 9. The other end of the second C-shaped frame 72 is connected to the leading end of the third C-shaped frame 73. The trailing end of the third C-shaped frame 73 forms the second end of the sub-copper medal 5.
[0058] As shown in Figure 4 , the second connecting line 8 and the third connecting line 9 are located on opposite sides of the second direction Y respectively.
[0059] It should be noted that, as shown in Figure 4 , when the third connecting line 9 is connected to one end of the second C-shaped frame 72, the third connecting line 9 penetrates from below the third C-shaped frame 73 and does not contact the third C-shaped frame 73.
[0060] Therefore, as shown in Figure 4 , in the lower annealing frame 2 and the upper annealing frame 3, the first C-shaped frame 71, the second connecting line 8, the fourth C-shaped frame 74, the third connecting line 9, the second C-shaped frame 72 and the third C-shaped frame 73 are sequentially connected end to end.
[0061] In summary, through the connection of the four C-shaped frames 7, the second connecting line 8 and the third connecting line 9, each sub-copper medal 5 can penetrate all the core windows of the corresponding amorphous solid-state core 1, thereby reducing the connection difficulty of each part of the sub-copper medal 5.
[0062] In some examples, the C-shaped frames 7, the second connecting line 8 and the third connecting line 9 are detachably connected.
[0063] In some embodiments, in combination with Figure 1 , Figure 2 and Figure 4 , the bronze medal 4 includes a first lead wire 10 and a second lead wire 11. The first lead wire 10 and the second lead wire 11 are both arranged at the edge of the lower annealing frame 2. The tail end of the third C-shaped frame 73 arranged on the lower annealing frame 2 is connected with one electrode in the annealing furnace through the first lead wire 10, and the tail end of the third C-shaped frame 73 arranged on the upper annealing frame 3 is connected with another electrode in the annealing furnace through the second lead wire 11.
[0064] For example, as shown in Figure 2 and Figure 4 , one end of the second lead wire 11 extends from the lower annealing frame 2 to the upper annealing frame 3 to be connected with the tail end of the third C-shaped frame 73 on the upper annealing frame 3.
[0065] For example, in combination with Figure 1 and Figure 4 , the current led out by one electrode in the annealing furnace flows into the sub-bronze medal 5 on the lower annealing frame 2 through the first lead wire 10, and then flows into the sub-bronze medal 5 on the upper annealing frame 3 from the head end of the first C-shaped frame 71 on the sub-bronze medal 5 on the lower annealing frame 2 along the first connecting wire 6, and then flows into another electrode in the annealing furnace from the tail end of the third C-shaped frame 73 on the sub-bronze medal 5 on the upper annealing frame 3 along the second lead wire 11, so as to realize the circulation of the current.
[0066] Through the above arrangement, the two sub-bronze medals 5 can be connected with two electrodes in the annealing furnace through the first lead wire 10 and the second lead wire 11.
[0067] In some embodiments, as shown in Figure 2 , a plurality of fixing plates are arranged at the edge of the lower annealing frame 2. The plurality of fixing plates are used to fix the first lead wire 10 and the second lead wire 11 at the edge of the lower annealing frame 2.
[0068] For example, the fixing plates are fixed on the lower annealing frame 2 by bolts to press-fix the first lead wire 10 and the second lead wire 11.
[0069] Through the above arrangement, the positions of the first lead wire 10 and the second lead wire 11 can be fixed, so as to facilitate the connection of the first lead wire 10 and the second lead wire 11 with the corresponding sub-bronze medal 5.
[0070] In some embodiments, as shown in Figure 5 and Figure 6 , the lower annealing frame 2 and the upper annealing frame 3 are connected with each other by a connecting rod. The annealing frame body further includes a reinforcing rod 12, one end of the reinforcing rod 12 is fixed on the connecting rod, and the other end is fixed on the frame of the upper annealing frame 3.
[0071] Exemplarily, the number of the connecting rods is four, and the four connecting rods are arranged at the four corners of the lower annealing frame 2 and the upper annealing frame 3 respectively.
[0072] Exemplarily, the four connecting rods are all fixed on the upper annealing frame 3, and the bottom ends of the four connecting rods are inserted and fixed on the lower annealing frame 2, so that the upper annealing frame 3 and the lower annealing frame 2 are detachably connected.
[0073] Exemplarily, the number of the reinforcing rods 12 is multiple. At least one reinforcing rod 12 is arranged at each connecting rod.
[0074] Through the above arrangement, the upper annealing frame 3 can be better supported by the connecting rods and the reinforcing rods 12, and the firmness of the upper annealing frame 3 is improved.
[0075] In some embodiments, as shown in Figure 5 and Figure 6 , the upper end of the upper annealing frame 3 is provided with an anti-toppling guardrail 13.
[0076] Exemplarily, the anti-toppling guardrail 13 is arranged around the upper end of the upper annealing frame 3, so as to avoid the amorphous three-dimensional wound iron core 1 placed in the upper annealing frame 3 from falling off.
[0077] Through the above arrangement, the amorphous three-dimensional wound iron core 1 placed in the upper annealing frame 3 can be protected.
[0078] In some embodiments, as shown in Figure 5 , the lower annealing frame 2 comprises a first support plate and a first annular fixing frame, the first annular fixing frame is fixed on the outer edge of the first support plate, and the first support plate is provided with first heat dissipation holes.
[0079] Exemplarily, the first support plate and the first annular fixing frame are fixed by welding; the amorphous three-dimensional wound iron core 1 is placed on the first support plate; and the number of the first heat dissipation holes is multiple.
[0080] The first heat dissipation holes can improve the heat dissipation efficiency of the amorphous three-dimensional wound iron core 1 placed on the first support plate in the annealing furnace, thereby improving the uniformity of the temperature of the amorphous three-dimensional wound iron core 1 during annealing.
[0081] In some embodiments, as shown in Figure 5 , the upper annealing frame 3 comprises a second support plate and a second annular fixing frame, the second annular fixing frame is fixed on the outer edge of the second support plate, and the second support plate is provided with second heat dissipation holes. The first connecting wire 6 is arranged on the second annular fixing frame.
[0082] Exemplarily, the second support plate and the second annular fixing frame are fixed by welding; the amorphous three-dimensional wound iron core 1 is placed on the second support plate; and the number of the second heat dissipation holes is multiple.
[0083] The second annular fixing frame and the first annular fixing frame are connected through a connecting rod.
[0084] The second heat dissipation hole can improve the heat dissipation efficiency of the amorphous three-dimensional core 1 placed on the second supporting plate in the annealing furnace, thereby improving the uniformity of the temperature of the amorphous three-dimensional core 1 during annealing.
[0085] Through the above arrangement, the uniformity of the temperature of the amorphous three-dimensional core 1 placed on the double-layer annealing frame can be improved.
[0086] The use process of the double-layer annealing frame in the embodiment is as follows: first, four amorphous three-dimensional cores 1 are placed on the lower annealing frame 2 according to the placement positions of the amorphous three-dimensional cores 1, and then four amorphous three-dimensional cores 1 are placed on the upper annealing frame 3, two sub-copper plates 5 are connected according to the design requirements of the copper plate 4, the first end of the sub-copper plate 5 of the upper and lower layers is connected by using the first connecting wire 6, the second end of the sub-copper plate 5 is connected by using the first lead wire 10 and the second lead wire 11 respectively, the double-layer annealing frame together with the amorphous three-dimensional cores 1 is placed on the supporting plate at the bottom of the annealing furnace, and the first lead wire 10 and the second lead wire 11 are connected to the positive and negative electrodes of the copper plate of the annealing furnace respectively, so that the double-layer annealing furnace of the amorphous three-dimensional core 1 is completed.
[0087] It should be noted that the connection of the two sub-copper plates 5 with the first connecting wire 6, the first lead wire 10 and the second lead wire 11 can be connected outside the annealing furnace.
[0088] Embodiment 2:
[0089] The utility model embodiment further provides an annealing furnace for annealing the core, the annealing furnace includes the annealing furnace body and the double-layer annealing frame in embodiment 1. Two electrodes are arranged in the annealing furnace body. The double-layer annealing frame can be placed in the annealing furnace body, and the two ends of the copper plate 4 of the double-layer annealing frame are connected with the two electrodes in the annealing furnace respectively.
[0090] For example, the specification of the amorphous three-dimensional core 1 that can be placed on the double-layer annealing frame can be 50kVA, 100kVA, 200kVA, 400kVA, 500kVA or 630kVA, etc.
[0091] The double-layer annealing frame can accommodate more amorphous three-dimensional cores 1, so that more amorphous three-dimensional cores 1 can be annealed in one annealing process, and the annealing efficiency of the annealing furnace can be improved.
[0092] In some embodiments, the two electrodes in the annealing furnace body are elastic electrodes. When the double-layer annealing frame is placed at the target position in the annealing furnace body, the two ends of the copper plate 4 of the double-layer annealing frame abut against the two electrodes in the annealing furnace.
[0093] Exemplarily, after the two ends of the copper plate 4 of the double-layer annealing frame abut against two electrodes in the annealing furnace and are extruded against each other, the two ends of the copper plate 4 of the double-layer annealing frame can be stably electrically connected with the two electrodes in the annealing furnace.
[0094] Through the above arrangement, the two ends of the copper plate 4 of the double-layer annealing frame can be automatically connected with the two electrodes in the annealing furnace by placing the double-layer annealing frame at a target position in the annealing furnace body, so that the worker does not need to enter the annealing furnace to connect the two ends of the copper plate 4 of the double-layer annealing frame with the two electrodes in the annealing furnace, thereby reducing the workload of the worker.
[0095] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also considered as the protection scope of the present application.
Claims
1. A double-layer annealing rack for holding amorphous three-dimensional wound iron cores (1), characterized in that, include: The annealing rack body includes a lower annealing rack (2) and an upper annealing rack (3) connected vertically, both the lower annealing rack (2) and the upper annealing rack (3) being used to place the amorphous three-dimensional wound iron core (1); each of the amorphous three-dimensional wound iron cores (1) has an iron core window; and, A copper plate (4) is set on the lower annealing rack (2) and the upper annealing rack (3). The two ends of the copper plate (4) are respectively connected to two electrodes in the annealing furnace to provide a magnetic field for the amorphous three-dimensional coiled iron core (1) during annealing. The lower annealing rack (2) and the upper annealing rack (3) can each hold N amorphous three-dimensional coiled iron cores (1), where N is an even number and greater than or equal to 2. The N amorphous three-dimensional coiled iron cores (1) placed on the lower annealing rack (2) or the upper annealing rack (3) can be arranged in a column in the second direction, or arranged in an even number of rows in the first direction and an even number of columns in the second direction. Each column of amorphous three-dimensional coiled iron cores (1) includes one or more pairs of amorphous three-dimensional coiled iron cores (1). In each pair of amorphous three-dimensional coiled iron cores (1), the core windows of the two amorphous three-dimensional coiled iron cores (1) can be set facing each other. The first direction and the second direction are two mutually perpendicular directions in the horizontal plane. The copper plate (4) can pass through all the core windows of all amorphous three-dimensional coiled iron cores (1); The bronze plaque (4) includes: Two sub-bronze plates (5) are respectively set on the lower annealing rack (2) and the upper annealing rack (3). The sub-bronze plate (5) set on the lower annealing rack (2) passes through all the core windows of all amorphous three-dimensional wound cores (1) on the lower annealing rack (2), and the sub-bronze plate (5) set on the upper annealing rack (3) passes through all the core windows of all amorphous three-dimensional wound cores (1) on the upper annealing rack (3); and, The first connecting line (6) is set on the upper annealing frame (3) and is used to connect the first ends of the two sub-branches (5); The second ends of the two sub-copper plates (5) are respectively connected to two electrodes in the annealing furnace; The arrangement of the amorphous three-dimensional coiled iron cores (1) placed on the lower annealing rack (2) and the upper annealing rack (3) is the same; N=4, and the four amorphous three-dimensional rolled iron cores (1) are arranged in two rows in the first direction and in two columns in the second direction; each of the amorphous three-dimensional rolled iron cores (1) includes a first iron core window and two second iron core windows, and the first iron core window and two second iron core windows are evenly distributed around the axis of the amorphous three-dimensional rolled iron core; in any two amorphous three-dimensional rolled iron cores (1) in any column, the two first iron core windows are arranged facing each other; The two rows of amorphous three-dimensional wound iron cores are the first row of amorphous three-dimensional wound iron cores and the second row of amorphous three-dimensional wound iron cores, respectively. Each of the sub-bronze plates (5) includes four C-shaped frames (7), which are respectively a first C-shaped frame (71), a second C-shaped frame (72), a third C-shaped frame (73), and a fourth C-shaped frame (74) arranged horizontally. The first C-shaped frame (71) and the second C-shaped frame (72) are arranged symmetrically back to back, and their opening directions are opposite. The middle of the first C-shaped frame (71) and the second C-shaped frame (72) are both penetrated by two first core windows of the first column of amorphous three-dimensional rolled iron cores. The two ends of the first C-shaped frame (71) are respectively penetrated by one second core window of each of the two front and rear amorphous three-dimensional rolled iron cores (1) in the first column of amorphous three-dimensional rolled iron cores. The two ends of the second C-shaped frame (72) are respectively penetrated by one other second core window of each of the two front and rear amorphous three-dimensional rolled iron cores (1) in the first column of amorphous three-dimensional rolled iron cores. The third C-shaped frame (73) and the fourth C-shaped frame (74) are arranged symmetrically back to back, and their opening directions are opposite. The middle of the third C-shaped frame (73) and the fourth C-shaped frame (74) are both penetrated by two first core windows of the second column of amorphous three-dimensional rolled iron cores. The two ends of the third C-shaped frame (73) are respectively penetrated by one second core window of each of the front and rear amorphous three-dimensional rolled iron cores (1) in the second column of amorphous three-dimensional rolled iron cores. The two ends of the fourth C-shaped frame (74) are respectively penetrated by one other second core window of each of the front and rear amorphous three-dimensional rolled iron cores (1) in the second column of amorphous three-dimensional rolled iron cores. The first end of the first C-shaped frame (71) forms the first end of the sub-bronze plate (5). The first C-shaped frame (71) is connected to one end of the fourth C-shaped frame (74) via the second connecting line (8). The other end of the fourth C-shaped frame (74) is connected to one end of the second C-shaped frame (72) via the third connecting line (9). The other end of the second C-shaped frame (72) is connected to the first end of the third C-shaped frame (73). The tail end of the third C-shaped frame (73) forms the second end of the sub-bronze plate (5).
2. The double-layer annealing rack according to claim 1, characterized in that, The copper plate (4) includes a first lead wire (10) and a second lead wire (11); The first lead wire (10) and the second lead wire (11) are both located at the edge of the lower annealing frame (2); The tail end of the third C-shaped frame (73) set on the lower annealing rack (2) is connected to an electrode in the annealing furnace via a first lead wire (10), and the tail end of the third C-shaped frame (73) set on the upper annealing rack (3) is connected to another electrode in the annealing furnace via a second lead wire (11).
3. The double-layer annealing rack according to claim 2, characterized in that, The lower annealing rack (2) has multiple fixing plates on its edge; Multiple fixing plates are used to fix the first lead wire (10) and the second lead wire (11) to the edge of the lower annealing frame (2).
4. The double-layer annealing rack according to claim 1, characterized in that, The lower annealing frame (2) and the upper annealing frame (3) are connected to each other by a connecting rod; The annealing frame body also includes a reinforcing rod (12), one end of which is fixed to the connecting rod, and the other end is fixed to the frame of the upper annealing frame (3).
5. The double-layer annealing rack according to claim 1, characterized in that, The upper end of the upper annealing rack (3) is provided with an anti-tipping guardrail (13).
6. The double-layer annealing rack according to claim 1, characterized in that, The lower annealing rack (2) includes a first support plate and a first annular fixing frame, the first annular fixing frame being fixed to the outer edge of the first support plate, and the first support plate being provided with first heat dissipation holes; and / or, The upper annealing frame (3) includes a second support plate and a second annular fixing frame. The second annular fixing frame is fixed on the outer edge of the second support plate, and the second support plate is provided with a second heat dissipation hole. The first connecting line (6) is provided on the second annular fixing frame.
7. An annealing furnace, characterized in that, include: The annealing furnace body has two electrodes inside. and, The double-layer annealing rack according to any one of claims 1-6 can be placed inside the annealing furnace body, and the two ends of the copper plate (4) of the double-layer annealing rack are respectively connected to two electrodes in the annealing furnace.
8. The annealing furnace according to claim 7, characterized in that, The two electrodes inside the annealing furnace body are elastic electrodes; When the double-layer annealing rack is placed at the target position inside the annealing furnace body, the two ends of the copper plate (4) of the double-layer annealing rack abut against the two electrodes in the annealing furnace.