A baffle tool for a wire-wound transformer coil

Abstract

This utility model relates to the technical field of transformer coil production, and particularly to a baffle fixture for wire-wound transformer coils. The baffle fixture includes a baffle body and several baffle bars. The baffle body has opposing first and second plate surfaces. The baffle bars are spaced apart on the second plate surface, each baffle bar extending out of the baffle body, and the portion of the baffle bar protruding out of the baffle body is coplanar with the first plate surface. The sections of the baffle bars extending out of the baffle body limit the end of the wound coil, ensuring the flatness of the coil end. The portion of the baffle bar protruding out of the baffle body is coplanar with the first plate surface, ensuring that the wound coil is flush with the end of the mold core. Compared to existing coils wound flush with a single baffle, this utility model has the advantages of being lighter and easier to assemble. Furthermore, the area of ​​the coil being shielded is small, making it easier for workers to observe the oil passages and make effective adjustments, thus facilitating oil passage alignment.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer coil production, and in particular to a baffle tooling for a wire-wound transformer coil. Background Technology

[0002] During transformer coil winding, a baffle structure is installed at the end of the mold core for positioning, ensuring a flat coil end face. However, high-voltage coils are large, requiring the baffle to be relatively large to accommodate the coil diameter. This results in heavy and bulky end baffles, making storage and assembly inconvenient. Furthermore, the large obstructed area of ​​the end baffles makes it difficult to observe whether the oil passages are aligned during winding, hindering timely and effective adjustments. Utility Model Content

[0003] The main purpose of this utility model is to provide a baffle fixture for a wire-wound transformer coil, which aims to solve the technical problems of existing end baffles being inconvenient to store and assemble due to their large weight and size, and inconvenient to observe and adjust the oil passages due to their large covered area.

[0004] To achieve the above objectives, this utility model proposes a baffle fixture for a wire-wound transformer coil, comprising a baffle body and a plurality of baffle bars. The baffle body has a first plate surface and a second plate surface facing each other. The plurality of baffle bars are spaced apart on the second plate surface, and each baffle bar extends out of the baffle body along itself, and the portion of the baffle bar protruding from the baffle body is coplanar with the first plate surface.

[0005] As described above, the end of the baffle fixture connected to the baffle body is a stepped structure, the depth of which is consistent with the thickness of the baffle body, and the horizontal surface of which abuts against the first plate surface.

[0006] As described above, the baffle fixture has a connecting component on the second plate surface that corresponds to the baffle bar, and the connecting component is detachably connected to the baffle bar.

[0007] As described above, the connecting member includes at least two connecting units, and the connecting units in one connecting member are spaced apart along a straight line on the second plate surface.

[0008] As described above, the connecting unit of the baffle fixture includes a connecting block and a fastening bolt. The connecting block has a notch on the side near the second plate surface for the baffle to pass through. The fastening bolt is threaded to the connecting block, and the stud end of the fastening bolt passes through the notch and abuts against the baffle.

[0009] As described above, the baffle fixture has a strip-shaped groove on the side of the baffle away from the second plate surface, and the length direction of the strip-shaped groove is consistent with the length direction of the baffle.

[0010] As described above, the baffle fixture includes a main body and connecting ears. The main body is used to abut the end of the mold core. The connecting ears correspond one-to-one with the stop strips. The connecting ears are disposed on the edge of the main body to protrude from the main body. In the same connecting member, at least one connecting unit is disposed on the main body, and another connecting unit is disposed at the connecting ear.

[0011] As described above, the main board is square, and the four connecting ears are symmetrically arranged on both sides of the main board, with the two connecting ears on the same side spaced apart.

[0012] The baffle fixture described above also includes a conductive busbar fixing mechanism. The conductive busbar fixing mechanism includes a first mounting plate, a second mounting plate, and a pressure member. The first mounting plate is linearly and lockably slidably disposed on the baffle body. The second mounting plate is connected to one end of the first mounting plate that protrudes from the baffle body. The pressure member is linearly and lockably slidably disposed on the second mounting plate. The sliding direction of the first mounting plate is consistent with the radial direction of the mold core, and the sliding direction of the pressure member is consistent with the axial direction of the mold core.

[0013] As described above, the baffle fixture has a through hole at the center of the baffle body, which is a triangular hole or a square hole.

[0014] The technical solution provided by this utility model can include the following beneficial effects:

[0015] In the baffle fixture for a wire-wound transformer coil provided by this utility model, the baffle body abuts against the end of the winding die core to facilitate the installation of the baffle fixture. Several baffle bars extending beyond sections of the baffle body limit the end of the wound coil to ensure the flatness of the coil end. It is worth noting that the portions of the baffle bars protruding from the baffle body are coplanar with the first plate surface, ensuring that the wound coil is flush with the end of the die core. Compared to existing coils wound flush with a single baffle, this utility model is lighter and easier to assemble. Furthermore, the small area of ​​the coil obstructed by this utility model allows workers to easily observe the oil passages and make effective adjustments, thus facilitating oil passage alignment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the baffle tooling structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the baffle body of this utility model;

[0019] Figure 3 This is a half-sectional structural diagram of the baffle of this utility model;

[0020] Figure 4 This is a schematic diagram of the conductive busbar fixing mechanism of this utility model assembled on the baffle body;

[0021] Figure 5 A schematic diagram of a structure with a positioning groove on the inner conductive bar of the coil;

[0022] In the attached diagram: 100-baffle body, 110-first plate surface, 120-second plate surface, 130-connecting component, 131-connecting unit, 132-connecting block, 133-fastening bolt, 134-notch, 140-main plate, 150-connecting ear, 160-through hole, 200-stop bar, 210-step structure, 211-horizontal plane, 220-strip plate, 230-pad, 300-conductive busbar fixing mechanism, 310-first mounting plate, 320-second mounting plate, 330-pressing component, 400-conductive busbar, 410-positioning groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] The following is combined with Figure 1 This invention describes a baffle fixture for a wire-wound transformer coil according to an embodiment of the present invention. The fixture includes a baffle body 100 and a plurality of baffle bars 200. The baffle body 100 has opposing first and second surfaces 110 and 120. The first surface 110 is used to abut against the end of a core. The plurality of baffle bars 200 are spaced apart on the second surface 120. Each baffle bar 200 extends outward from the baffle body 100, and the portion of the baffle bar 200 protruding from the baffle body 100 is coplanar with the first surface 110. The portion of the baffle bar 200 protruding from the baffle body 100 is used to flush with the end face of the wound coil. Specifically, in some optional embodiments, the baffle bars 200 may be arranged in a ring array with intervals; in other optional embodiments, the baffle bars 200 may be arranged horizontally with intervals.

[0028] In the baffle fixture for a wire-wound transformer coil provided by this utility model, the baffle body 100 abuts against the end of the winding die core to facilitate the installation of the baffle fixture. Several baffle bars 200 extending beyond sections of the baffle body 100 limit the end of the wound coil to ensure the flatness of the coil end. It is worth noting that the portion of the baffle bar 200 protruding from the baffle body 100 is coplanar with the first plate surface 110, ensuring that the wound coil is flush with the end of the die core. Compared to existing coils wound flush with a single baffle, this utility model is lighter and easier to assemble. Furthermore, the small area of ​​the coil obstructed by this utility model facilitates workers' observation of the oil passages and allows for effective adjustments, thus promoting oil passage alignment.

[0029] Preferably, such as Figure 3 As shown, the end of the baffle 200 connected to the baffle body 100 is a stepped structure 210. The depth of the stepped structure 210 is the same as the thickness of the baffle body 100, and the horizontal surface 211 of the stepped structure 210 abuts against the first plate surface 110. This ensures that when the horizontal surface 211 of the stepped structure 210 abuts against the first plate surface 110, the portion of the baffle 200 protruding from the baffle body 100 is coplanar with the first plate surface 110, facilitating the installation of the baffle 200 and the baffle body 100. The horizontal surface 211 of the step is a plane perpendicular to the thickness direction of the baffle 200. In some optional embodiments, the baffle 200 can be a stepped structure 210 formed by stacking a strip 220 and a pad 230. That is, one end of the strip 220 is fixed to the second plate surface 120 of the baffle body 100, and the thickness of the pad 230 is the same as the thickness of the baffle body 100. The pad 230 is installed on one side of the strip 220 that protrudes from the baffle body 100. Of course, in other embodiments, the baffle 200 can be a complete strip 220. In this embodiment, the thickness of the strip 220 is greater than the thickness of the baffle body 100, and a notch 134 is opened at its end. The depth of the notch 134 is the same as the thickness of the baffle body 100, thereby forming the stepped structure 210.

[0030] Specifically, such as Figure 2 As shown, the baffle body 100 has connecting members 130 on the second plate surface 120 that correspond one-to-one with the baffle strips 200. The connecting members 130 are detachably connected to the baffle strips 200. Thus, when a larger coil needs to be wound, a longer baffle strip 200 can be used for limiting the movement.

[0031] More specifically, the connecting member 130 includes at least two connecting units 131, and the connecting units 131 in a connecting member 130 are spaced apart along a straight line on the second plate surface 120. In this embodiment, at least two connecting units 131 are used to fix the baffle 200 to the second plate surface 120 of the baffle body 100, thereby improving the connection stability of the baffle 200.

[0032] For example, the connecting unit 131 includes a connecting block 132 and a fastening bolt 133. The connecting block 132 has a notch 134 on the side near the second plate surface 120 for the stop bar 200 to pass through. The fastening bolt 133 is threadedly connected to the connecting block 132, and the stud end of the fastening bolt 133 passes through the notch 134 and abuts against the stop bar 200. In this way, the stop bar 200 is detachably connected to the second plate surface 120 of the baffle body 100. Of course, the stop bar 200 can also be pulled out or retracted as needed to adjust the length of the stop bar 200 protruding from the baffle body 100. Preferably, the fastening bolt 133 can be a wing bolt for easy manual tightening or loosening. Specifically, the connecting block 132 is fixedly connected to the baffle body 100 by welding.

[0033] Optionally, the stop bar 200 has a strip-shaped groove on the side away from the second plate surface 120, and the length direction of the strip-shaped groove is consistent with the length direction of the stop bar 200. In this embodiment, the stud end of the fastening bolt 133 abuts against the bottom of the strip-shaped groove, and the strip-shaped groove and the fastening bolt 133 are in clearance fit, thereby limiting the stretching or retraction direction of the stop bar 200.

[0034] Specifically, the baffle body 100 includes a main plate portion 140 and connecting ears 150. The main plate portion 140 abuts against the end of the mold core, and the connecting ears 150 correspond one-to-one with the stop bars 200. The connecting ears 150 are disposed on the edge of the main plate portion 140, protruding relative to the main plate portion 140. In the same connecting member 130, at least one connecting unit 131 is disposed on the main plate portion 140, and another connecting unit 131 is disposed at the connecting ear 150. In this embodiment, the area of ​​the main plate portion 140 is close to the end area of ​​the mold core to avoid the main plate portion 140 from covering the wound coil as much as possible. By providing connecting ears 150 at the edge of the main plate portion 140, the contact area between the stop bars 200 and the baffle body 100 is increased by a small area, so that there is sufficient space between the two connecting units 131 and sufficient spacing between the two connecting units 131 to facilitate a stable connection between the stop bars 200 and the baffle body 100.

[0035] More specifically, the main board portion 140 is square, and four connecting ears 150 are symmetrically arranged on both sides of the main board portion 140, with two connecting ears 150 on the same side spaced apart. In this embodiment, four baffles 200 are also provided, with two baffles 200 arranged in a straight line on the baffle body 100. One end of each baffle 200 is connected to the main board portion 140 and the corresponding connecting ear 150, and the other end of the baffle 200 extends out of the baffle body 100.

[0036] In other embodiments, the baffle fixture further includes a conductive busbar fixing mechanism 300, which includes a first mounting plate 310, a second mounting plate 320, and a pressure member 330. The first mounting plate 310 is linearly and lockably slidably disposed on the baffle body 100. The second mounting plate 320 is connected to one end of the first mounting plate 310 that protrudes from the baffle body 100. The pressure member 330 is linearly and lockably slidably disposed on the second mounting plate 320. The sliding direction of the first mounting plate 310 is consistent with the radial direction of the mold core, and the sliding direction of the pressure member 330 is consistent with the axial direction of the mold core.

[0037] For example, such as Figure 4 As shown, the first mounting plate 310 is located between two connecting ears 150 on the same side. The first mounting plate 310 has a first strip-shaped through groove. The baffle body 100 is provided with a first pin with external threads on the second plate surface 120. The first pin passes through the first strip-shaped through groove and is threaded to the first nut. When the first nut is tightened, it presses against the first mounting plate 310 to lock it. When the first nut is loosened, the first mounting plate 310 can slide linearly relative to the baffle body 100, thereby driving the second mounting plate 320 and the pressure member 330 to slide, thus adapting to coils of different radii. Similarly, the second mounting plate 320 is provided with a second strip-shaped through groove, and the pressure member 330 is provided with a second pin with external threads. The second pin passes through the second strip-shaped through groove and is threadedly connected to the second nut. When the second nut is tightened, it presses against the pressure member 330 to lock it. When the second nut is loosened, the pressure member 330 can slide linearly relative to the second mounting plate 320. In this way, the pressure member 330 can move in two directions on the plane, so that the pressure member 330 can be inserted into the positioning groove 410 of the conductive bus 400 and withdrawn from the positioning groove 410 of the conductive bus 400.

[0038] Specifically, such as Figure 5As shown, in actual production, the conductive busbar 400 inside the coil has a positioning groove 410 that cooperates with the pressing member 330 to fix the conductive busbar 400 onto the mold core. For example, before winding, the conductive busbar 400 is placed on the surface of the mold core, and then the pressing member 330 is used to press it into the positioning groove 410 of the conductive busbar 400, thus fixing the conductive busbar 400 onto the mold core. Since the pressing member 330 is located within the positioning groove 410 of the conductive busbar 400, it does not affect the flatness of the coil winding.

[0039] Optionally, the baffle body 100 has a through hole 160 at its center, which is a triangular or square hole, to allow a matching spindle to pass through. The triangular or square hole mates with the matching spindle to prevent the baffle from slipping relative to the spindle during rotation.

[0040] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A baffle tool for a wire-wound transformer coil, characterized by: include: A baffle body, the baffle body having opposing first and second plate surfaces; A plurality of baffles are spaced apart on the second plate surface, each baffle extending out of the baffle body, and the portion of the baffle protruding out of the baffle body is coplanar with the first plate surface.

2. A baffle tool for a wire-wound transformer coil according to claim 1, characterized in that: The end of the baffle that connects to the baffle body is a stepped structure. The depth of the stepped structure is consistent with the thickness of the baffle body, and the horizontal surface of the stepped structure abuts against the first plate surface.

3. A baffle tool for a wire-wound transformer coil as defined in claim 1, characterized in that: The main body of the baffle is provided with connecting members on the second plate surface that correspond one-to-one with the baffle strips, and the connecting members are detachably connected to the baffle strips.

4. The baffle fixture for a wire-wound transformer coil according to claim 3, characterized in that: The connecting member includes at least two connecting units, and the connecting units in one connecting member are spaced apart along a straight line on the second plate surface.

5. A baffle tool for a wire-wound transformer coil according to claim 4, characterized in that: The connecting unit includes a connecting block and a fastening bolt. The connecting block has a notch on one side near the second plate surface for the stop bar to pass through. The fastening bolt is threaded to the connecting block, and the stud end of the fastening bolt passes through the notch and abuts against the stop bar.

6. A baffle tool for a wire-wound transformer coil according to claim 5, characterized in that: The side of the baffle away from the second plate surface is provided with a strip-shaped groove, and the length direction of the strip-shaped groove is consistent with the length direction of the baffle.

7. A baffle tool for a wire-wound transformer coil as defined in claim 4, wherein: The baffle body includes a main board portion and a connecting ear. The main board portion is used to abut the end of the mold core. The connecting ear corresponds to the baffle strip. The connecting ear is disposed on the edge of the main board portion to protrude from the main board portion. In the same connecting member, at least one connecting unit is disposed on the main board portion, and another connecting unit is disposed at the connecting ear.

8. A baffle tool for a wire-wound transformer coil according to claim 7, characterized in that: The main board is square, and the four connecting ears are symmetrically arranged on both sides of the main board, with the two connecting ears on the same side spaced apart.

9. The baffle fixture for a wire-wound transformer coil according to claim 1, characterized in that: It also includes a conductive busbar fixing mechanism, which includes a first mounting plate, a second mounting plate, and a pressure member. The first mounting plate is linearly and lockably slidably disposed on the baffle body. The second mounting plate is connected to one end of the first mounting plate that protrudes from the baffle body. The pressure member is linearly and lockably slidably disposed on the second mounting plate. The sliding direction of the first mounting plate is consistent with the radial direction of the mold core, and the sliding direction of the pressure member is consistent with the axial direction of the mold core.

10. A baffle tool for a wire-wound transformer coil as defined in claim 1, wherein: The baffle body has a through hole at its center, which can be a triangular hole or a square hole.

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