Split coil foil winding copper bar fixing device

Abstract

The utility model discloses a fixing device for winding a split coil foil on a copper bar, which relates to the technical field of copper bar fixing devices and comprises a base body, the length direction of the copper bar coincides with the length direction of the base body, the copper bar is symmetrically arranged along the middle of the base body, and a groove is formed in one end opposite to the copper bar. Clamping plates are arranged at the two opposite ends of the base body in the length direction respectively, notches are formed in the clamping plates, and the ends, away from each other, of the copper bars are clamped in the notches; the bases are in an inverted L shape, the bases are arranged on the end face, opposite to the base body, of the clamping plate, the bases are detachably arranged on the clamping plate, and the two bases are symmetrically arranged along the middle of the base body; the fastening plate is detachably arranged at the upper end of the base, and the fastening plate is used for pressing the copper bar; and the pressing part is in a cross shape, the end part of the pressing part is embedded into the groove, and the pressing plate part presses the opposite ends of the two adjacent copper bars, so that the copper bars can be fixed more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of copper bar fixing devices, and particularly relates to a split coil foil winding copper bar fixing device. Background Art

[0002] When winding a foil-wound transformer coil, the copper bar is usually fixed by welding limit bars at both ends of the winding mold. Since the foil-wound split transformer has the need to connect wires at the upper and lower ends, the internal copper bars are symmetrically arranged at the middle position along the height direction of the transformer. The copper bar connection ends are led to the upper and lower ends of the transformer. Therefore, when winding the coil with such symmetrically arranged copper bars, the copper bars are also symmetrically placed on the winding mold. In this way, when fixing the copper bars by the above copper bar fixing method, since the distance between the opposite ends of the two copper bars is relatively close, when it is necessary to weld limit bars or fixing blocks at both ends of the copper bars, the welding position between the two copper bars is small, making it inconvenient to weld and fix the fixing blocks or limit bars at the opposite ends of the two copper bars. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a split coil foil winding copper bar fixing device, aiming to effectively solve the problem in the prior art that it is inconvenient to weld the limit bar when fixing the copper bar because the distance between the opposite ends of the two copper bars is relatively close.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A split coil foil winding copper bar fixing device is applied to the fixing of copper bars. The split coil foil winding copper bar fixing device includes:

[0006] A base body, the length direction of the copper bar coincides with the length direction of the base body, the copper bars are symmetrically arranged along the middle of the base body, grooves are opened at the opposite ends of the copper bars, clamping plates are respectively arranged at the opposite ends in the length direction of the base body, notches are opened on the clamping plates, and the opposite ends of the copper bars are stuck in the notches;

[0007] A base, the base is in an inverted L shape, the base is arranged on the end face of the clamping plate opposite to the base body, the base is detachably arranged on the clamping plate, and the two bases are symmetrically arranged along the middle of the base body;

[0008] A fastening plate, the fastening plate is detachably arranged on the upper end of the base, and the fastening plate is used to press the copper bar;

[0009] A pressing component, the pressing component is in a cross shape, the end of the pressing component is embedded in the groove, and the pressing plate component presses the opposite ends of two adjacent copper bars.

[0010] Optionally, the base is provided with kidney-shaped holes, and the clamping plate is provided with threaded holes. Bolts pass through the kidney-shaped holes and the threaded holes to fix the base.

[0011] Optionally, the pressing member is made of epoxy resin.

[0012] Optionally, one end of the fastening plate close to the base is provided with a connecting plate. Through holes are respectively provided on the base and the connecting plate. Bolts sequentially pass through the through holes of the connecting plate and the through holes of the base to fix the connecting plate. The fastening plate is detachably arranged on the base through the bolts, the connecting plate and the through holes.

[0013] Optionally, a clamping groove is formed on the end face of the fastening plate opposite to the base. The clamping groove is matched with the notch. The copper bar passes through the clamping groove and the notch and then extends to the surface of the base body.

[0014] Optionally, the positioning device further includes a pressing plate. The pressing plate is detachably arranged on one of the bases, and a convex plate is connected to one end of the pressing plate.

[0015] Optionally, the end of the convex plate opposite to the pressing plate extends to the copper bar opposite to the pressing plate, and the length of the convex plate is greater than half of the length of the base body.

[0016] In the technical solution of the present utility model, by providing a base body, a clamping plate, a base and a fastening plate, when fixing a copper bar, one copper bar is placed on the base body along the length direction of the base body. One end of the copper bar is tightly fixed by the base and the fastening plate, and the other end is fixed by welding a limiting strip. Since only one copper bar is installed on the base body at this time, the welding of the limiting strip will not be affected by the gap between the copper bars, and there will be no inconvenient welding situation during welding. After welding is completed, the foil winding of this copper bar can be started; after the foil winding of this copper bar is completed, the limiting strip is removed, and then the pressing member is installed, and one end of it is inserted into the groove of this copper bar. Another copper bar is placed on the base body, and then the other end of this copper bar is fixed by using the fastening plate, and the foil winding of the second copper bar can be started. Since the second copper bar is fixed by the pressing member before foil winding to prevent it from warping, the present utility model will not have the problem that it is inconvenient to weld the limiting strip to the opposite ends of the two copper bars due to the small welding position between the two copper bars in the prior art. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present utility model after removing the coil;

[0018] Figure 2 is a schematic structural diagram of an embodiment of the positioning device of the present utility model;

[0019] Figure 3 This is a schematic structural view of using a pressing plate and a convex plate to fix a copper bar instead of a limiting strip in an embodiment of the positioning device of the present utility model;

[0020] Figure 4 This is a schematic structural view of a fastening plate in an embodiment of the positioning device of the present utility model;

[0021] Figure 5 This is a schematic structural view of a pressing component in an embodiment of the positioning device of the present utility model;

[0022] Figure 6 This is a schematic structural view of a pressing plate and a convex plate in another embodiment of the positioning device of the present utility model;

[0023] Figure 7 This is a schematic structural view of a copper bar in an embodiment of the positioning device of the present utility model.

[0024] Explanation of the reference numerals in the drawings: 100, copper bar; 1001, groove; 1, base body; 2, clamping plate; 201, notch; 202, threaded hole; 3, base; 301, kidney-shaped hole; 4, fastening plate; 401, clamping groove; 5, pressing component; 6, pressing plate; 7, convex plate; 8, connecting plate; 9, through hole; 10, positioning hole; 11, coil. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on what can be achieved by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present utility model provides a fixing device for split coil foil-wound copper bars.

[0030] The fixing device for split coil foil-wound copper bars provided by the present utility model is applied to the fixing of copper bar 100. The fixing device for split coil foil-wound copper bars includes: a base body 1. Please refer to Figure 1 and Figure 2 The length direction of copper bar 100 coincides with the length direction of base body 1, and copper bar 100 is symmetrically arranged along the middle of base body 1. Please refer to Figure 1 and Figure 7 , grooves 1001 are opened at opposite ends of copper bar 100, clamping plates 2 are respectively arranged at opposite ends in the length direction of base body 1, notches 201 are opened on clamping plates 2, and opposite ends of copper bar 100 are clamped in notches 201; a base 3, base 3 is in an inverted L shape, base 3 is arranged on the end face of clamping plate 2 opposite to base body 1, base 3 is detachably arranged on clamping plate 2, and two bases 3 are symmetrically arranged along the middle of base body 1; a fastening plate 4, fastening plate 4 is detachably arranged on the upper end of base 3, and fastening plate 4 is used to press copper bar 100; a pressing member 5, pressing member 5 is in a cross shape, the end of pressing member 5 is embedded in groove 1001, and pressing member 5 presses opposite ends of two adjacent copper bars 100.

[0031] In the embodiment of the present utility model, by providing base body 1, clamping plates 2, base 3 and fastening plate 4, when fixing copper bar 100, one copper bar 100 is placed on base body 1 along the length direction of base body 1. One end of this copper bar 100 is pressed and fixed by base 3 and fastening plate 4, and the other end is fixed by welding a limiting strip. Since only one copper bar 100 is installed on base body 1 at this time, the welding of the limiting strip will not be affected by the gap between copper bars 100, and there will be no inconvenient welding situation during welding. After welding is completed, the foil winding of this copper bar 100 can be started; after the foil winding of this copper bar 100 is completed, the limiting strip is removed. AsFigure 2 As shown, the copper bar 100 on the left side has been foil-wound, and a coil 11 is wrapped around its outer side. Then, the pressing component 5 is installed, with one end inserted into the groove 1001 of the copper bar 100. Then, another copper bar 100 is placed on the base 1, and the other copper bar 100 is symmetrically placed along the middle of the base 1 with respect to the previously foil-wound copper bar 100. The copper bar 100 that has not been foil-wound is moved so that the pressing component 5 is inserted into the groove 1001 in the copper bar 100. The pressing component 5 is used to press one end of the copper bar 100, and then the other end of the copper bar 100 is fixed by the fastening plate 4, and then the foil-winding of the second copper bar 100 can be started, as Figure 2 shown Figure 2 shown in the figure, the copper bar 100 on the right side has not been foil-wound. Before the foil-winding of the second copper bar 100, it is not necessary to fix it by welding a limiting bar, but the pressing component 5 is used for fixation. Since the copper bar 100 on the left side has been foil-wound, the pressing component 5 is inserted into the groove 1001 of the copper bar 100 on the left side. It is pressed by the coil of the copper bar 100 on the left side and will not fall off. Therefore, the pressing component 5 can be used to press the end of the copper bar 100 on the right side to prevent it from warping. After the foil-winding is completed, the pressing component 5 remains inside the coil. After the winding is completed, the pressing component 5 will remain inside the coil. Under the action of the strength of the pressing component 5 itself, it is ensured that the upper and lower sections of the low-voltage busbars will not shift, increasing the strength of the coil.

[0032] Please refer to Figure 1 , in an embodiment of the present invention, a kidney-shaped hole 301 is provided on the base 3, and a threaded hole 202 is provided on the clamping plate 2. A bolt passes through the kidney-shaped hole 301 and the threaded hole 202 to fix the base 3.

[0033] In the embodiment of the present invention, by providing the kidney-shaped hole 301, the base 3 can move along the extending direction of the kidney-shaped hole 301 to adjust the position of the base 3.

[0034] Please refer to Figure 1 , in an embodiment of the present invention, the pressing component 5 is made of epoxy resin.

[0035] In the embodiment of the present invention, by providing the pressing component 5 made of epoxy resin, the cured epoxy resin has excellent mechanical properties and is not prone to fracture. Moreover, the cured epoxy resin also has the advantages of high dielectric properties, resistance to surface leakage, and resistance to arc, which can effectively prevent the current from being conducted from one copper bar 100 to another copper bar 100.

[0036] Please refer to Figure 1 and Figure 4, in an embodiment of the present utility model, a connecting plate 8 is provided at one end of the fastening plate 4 close to the base 3. Through holes 9 are respectively provided on the base 3 and the connecting plate 8. A bolt sequentially passes through the through hole 9 of the connecting plate 8 and the through hole of the base 3 to fix the connecting plate 8. The fastening plate 4 is detachably arranged on the base 3 through the bolt, the connecting plate 8 and the through hole 9.

[0037] In the embodiment of the present utility model, by installing the bolt in the through hole 9, the fixation of the connecting plate 8 can be realized, effectively preventing the fastening plate 4 from falling off during foil winding and affecting the tightness of the coil.

[0038] Please refer to Figure 1 and Figure 4 , in an embodiment of the present utility model, a clamping groove 401 is formed on the end face of the fastening plate 4 opposite to the base 3. The clamping groove 401 cooperates with the notch 201. The copper bar 100 passes through the clamping groove 401 and the notch 201 and then extends to the surface of the base body 1.

[0039] In the embodiment of the present utility model, by providing the clamping groove 401, during foil winding, the copper bar 100 is placed on the base body 1, the notch 201 is used to clamp the copper bar 100, and then the fastening plate 4 is installed on the base 3. The clamping groove 401 clamps the copper bar 100 to position and fix the copper bar 100 to prevent the copper bar 100 from moving.

[0040] Please refer to Figure 2 and Figure 6 , in another embodiment of the present utility model, the positioning device further includes a pressing plate 6. The pressing plate 6 is detachably arranged on one of the bases 3, and a convex plate 7 is connected to one end of the pressing plate 6.

[0041] In the embodiment of the present utility model, first place the copper bar 100 at one end of the base body 1, use the base 3 and the fastening plate 4 at this end to press and fix one end of the copper bar 100. Install the pressing plate 6 on the base 3 at the other end of the base body 1, and use the convex plate 7 on the pressing plate 6 to extend into the groove 1001 of the copper bar 100 to fix the other end of the copper bar 100. After the fixation is completed, perform foil winding on the copper bar 100. After the foil winding of the copper bar 100 is completed, remove the pressing plate 6, insert the pressing member 5 into the groove 1001 of the copper bar 100, then place another copper bar 100 on the base body 1, align the groove 1001 on the copper bar 100 with the end of the pressing member 5, insert the pressing member 5 into the groove 1001 on the copper bar 100, and then use the fastening plate 4 to press and fix the copper bar 100 to perform foil winding on the copper bar 100. Specifically, positioning holes 10 corresponding to the through holes 9 on the base 3 are formed on the pressing plate 6. By installing bolts in the positioning holes 10 and the through holes 9 on the base 3, the fixation of the pressing plate 6 can be realized, effectively preventing the pressing plate 6 from falling off during foil winding and affecting the tightness of the coil.

[0042] See also Figure 1 and Figure 4 In another embodiment of the present invention, one end of the protruding plate 7 opposite to the pressing plate 6 extends to the copper bus 100 opposite to the pressing plate 6 , and the length of the protruding plate 7 is greater than half the length of the substrate 1 .

[0043] In the embodiment of the utility model, the clamping plate 6 and the convex plate 7 are used to replace the limit bar to fix one end of the copper busbar 100 that is first foil-wound. The clamping plate 6 and the convex plate 7 are used to clamp the end of the copper busbar 100. Therefore, it is necessary to set the end of the convex plate 7 between the base 3 that fixes the copper busbar 100 and the middle part of the base 1. In this way, the convex plate 7 can clamp the copper busbar 100 and fix it to prevent the copper busbar 100 from being skewed, thereby affecting the subsequent foil winding.

[0044] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A split coil foil-wound copper bar fixing device, used for fixing the copper bar, the split coil foil-wound copper bar fixing device comprising: The length direction of the copper bar coincides with the length direction of the substrate, the copper bar is symmetrically arranged along the middle of the substrate, and a groove is provided at one opposite end of the copper bar. It is characterized in that two opposite ends in the length direction of the substrate are respectively provided with a clamping plate, a notch is provided on the clamping plate, and the ends of the copper bar that are away from each other are clamped in the notch; A base, the base is in an inverted L shape, the base is arranged on an end surface of the card plate opposite to the base, the base is detachably arranged on the card plate, and two bases are symmetrically arranged along the middle of the base; A fastening plate, which is detachably arranged on the upper end of the base and is used to press the copper busbar; A pressing component is cross-shaped, and an end of the pressing component is embedded in the groove. The pressing component presses the opposite ends of two adjacent copper bars.

2. The split coil foil-wound copper bar fixing device according to claim 1 is characterized in that: The base is provided with a waist-shaped hole, the clamping plate is provided with a threaded hole, and bolts pass through the waist-shaped hole and the threaded hole to fix the base.

3. The split coil foil-wound copper bar fixing device according to claim 1, characterized in that: The pressing component is made of epoxy resin.

4. The split coil foil-wound copper bar fixing device according to claim 1, characterized in that: A connecting plate is provided at one end of the fastening plate close to the base, and through holes are respectively provided on the base and the connecting plate. Bolts pass through the through holes of the connecting plate and the through holes of the base in sequence to fix the connecting plate. The fastening plate is detachably arranged on the base through the bolts, the connecting plate and the through holes.

5. The split coil foil-wound copper bar fixing device according to claim 4, characterized in that: A slot is formed on one end surface of the fastening plate opposite to the base, and the slot matches the notch. The copper bar passes through the slot and the notch and extends into the surface of the base.

6. The split coil foil-wound copper bar fixing device according to claim 1, characterized in that: The split coil foil-wound copper bar fixing device also includes a pressing plate, which is detachably arranged on one of the bases, and one end of the pressing plate is connected to a convex plate.

7. The split coil foil-wound copper bar fixing device according to claim 6, characterized in that: One end of the convex plate opposite to the pressing plate extends to the copper bar opposite to the pressing plate, and the length of the convex plate is greater than half of the length of the base.

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