A transformer flat wire bending tool

Abstract

The present application provides a transformer flat wire bending tool, including a first handle and a second handle. The first handle and the second handle both include: a flat wire fixing part and a hand-held part, a flat wire passing hole is provided at the flat wire fixing part, a fastener is provided on the side of the flat wire passing hole, the fastener extends into the flat wire passing hole along the thickness direction of the flat wire and the insertion depth is adjustable; the hand-held part is provided at one end of the first handle away from the flat wire fixing part. By providing the flat wire passing hole and the fastener, the flat wire can be fixed in the thickness direction to ensure the stability of the flat wire during the bending process, thereby saving more effort and achieving a better bending effect. Since the fastener is adjustable, it can be applied to flat wires of different thicknesses and has a wider range of applications.

Description

Technical Field

[0001] The invention relates to transformer production technology, in particular to a transformer flat wire bending tool. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It is mainly composed of an iron core (or magnetic core) and a coil.

[0003] After the coil is wound, the existing transformer needs to be axially extended at the upper and lower ends of the coil. Since the axially extended copper flat wire needs to be perpendicular to the coil, it is necessary to fold the flat wire into a 90° angle in the width direction. This operation generally requires the use of special tools. For a single flat wire with a large cross-sectional width and a small thickness, it is difficult to bend it along its width direction.

[0004] Existing wire bending tools usually bend using a three-point structure as shown in patents CN206382466U and CN206854531U. However, due to the fixed size of the existing tools, it is difficult to apply to flat wires of different thicknesses. In addition, the existing bending tools are difficult to keep the flat wire stable in the thickness direction during the bending process, which easily leads to bending deformation and laborious operation. Summary of the invention

[0005] The object of the present invention is to provide a transformer flat wire bending tool which is light, labor-saving and has a wide range of applications.

[0006] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0007] According to one aspect of the present invention, there is provided a transformer flat wire bending tool, comprising:

[0008] A first handle, the first handle comprising:

[0009] A flat wire fixing portion, the flat wire fixing portion comprising:

[0010] Flat wire through hole; and

[0011] a fastener, the fastener being arranged on a side of the flat wire passing hole and extending into the flat wire passing hole along a thickness direction of the flat wire, and the extending depth of the fastener being adjustable; and a hand-held portion, the hand-held portion being arranged at an end of the first handle away from the flat wire fixing portion;

[0012] and a second handle, wherein the structure of the second handle is the same as that of the first handle.

[0013] In one embodiment, the fastener of the transformer flat wire bending tool is a bolt, a threaded hole is provided on the side wall of the flat wire passing hole, and the fastener is screwed into the threaded hole.

[0014] In one embodiment, the hand-held portion of the transformer flat wire bending tool is wrapped with a rubber layer.

[0015] In one embodiment, the transformer flat wire bending tool further comprises:

[0016] The connecting member comprises a plane, and the first handle and the second handle are both rotatably connected to the plane.

[0017] In one embodiment, the transformer flat wire bending tool further includes: the first handle and the second handle are connected to the connecting member via a first rotating member and a second rotating member, respectively.

[0018] In one embodiment, the first rotating member and the second rotating member of the transformer flat wire bending tool are transmission-connected.

[0019] In one embodiment, the first rotating member and the second rotating member of the transformer flat wire bending tool are connected by gear meshing.

[0020] In one embodiment, the relative distance between the first handle and the second handle of the transformer flat wire bending tool on the connecting surface of the connecting member is adjustable.

[0021] In one embodiment, a movable hole is opened on the connecting member of the transformer flat wire bending tool, and the first rotating member and the second rotating member are both arranged in the movable hole. The first rotating member and the second rotating member can lock and unlock the positions in the movable hole to adjust the relative distance.

[0022] In one embodiment, the first handle and the second handle of the transformer flat wire bending tool are both L-shaped.

[0023] The beneficial effect of the embodiment of the present application is that by providing the flat wire through hole and the fastener, the flat wire can be fixed in the thickness direction, ensuring the stability of the flat wire during the bending process, thereby saving more effort and achieving a better bending effect. Since the fastener is adjustable, it can be applied to flat wires of different thicknesses, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or features may have the same or similar reference numerals.

[0026] Figure 1 It is a schematic diagram of the structure of a possible embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of another possible embodiment of the present application;

[0028] Figure 3 yes Figure 2 Schematic diagram after bending;

[0029] Figure 4 It is a schematic diagram of the structure of a possible embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the structure of a possible embodiment of the present application;

[0031] Among them: 100-first handle; 200-second handle; 110 flat wire fixing part; 120-hand holding part; 121-rubber layer; 111-flat wire passing hole; 112-fastener; 113-flexible contact surface; 300-connecting part; 310-movable hole; 400-first rotating part; 500-second rotating part; 600-flat wire. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0033] like Figure 1As shown, an embodiment of the present disclosure provides a transformer flat wire bending tool, including a first handle 100 and a second handle 200, each of the first handle 100 and the second handle 200 includes: a flat wire fixing portion 110 and a hand-holding portion 120, a flat wire passing hole 111 is provided at the flat wire fixing portion 110, a fastener 112 is provided on the side of the flat wire passing hole 111, the fastener 112 extends into the flat wire passing hole 111 along the thickness direction of the flat wire and the insertion depth is adjustable; the hand-holding portion 120 is provided at an end of the first handle 100 away from the flat wire fixing portion 110.

[0034] In a possible embodiment, the fastener 112 is a bolt, and a threaded hole is provided on the side wall of the flat wire passage hole 111. The fastener 112 is screwed into the threaded hole, and the insertion depth is adjusted by screwing the bolt. The fastener 112 can be arranged on opposite sides of the flat wire passage hole 111, and the flat wire is locked by being brought close to each other, or it can be arranged on only one side, and the fastener 112 and the side wall of the flat wire passage hole 111 cooperate to lock the flat wire 600.

[0035] The first handle 100 and the second handle 200 may be in the shape of a cylinder or a prism, etc., which is not limited here. The flat wire passing hole 111 may be in the shape of a round hole, a square hole, etc. If the fastener 112 is only provided on one side, it should be a square hole. The size of the flat wire passing hole 111 may be slightly larger than the size of a common flat wire (mainly the size in the width direction) to ensure that the flat wire 600 can pass through easily.

[0036] When the transformer flat wire bending tool is in operation, the flat wire 600 needs to be passed through the flat wire passing holes 111 of the first handle 100 and the second handle 200. Figure 2 Then adjust the fasteners 112 of the first handle 100 and the second handle 200 respectively to ensure that the flat wire 600 is locked. Finally, hold the first handle 100 and the second handle 200 and rotate them outward at the same time, as shown in FIG. Figure 3 As shown, the flat wire 600 is bent.

[0037] The above transformer flat wire bending tool can fix the flat wire in the thickness direction by setting the flat wire through hole 111 and the fastener 112, ensuring the stability of the flat wire during the bending process, thereby saving more effort and achieving a better bending effect. Since the fastener 112 is adjustable, it can be applied to flat wires of different thicknesses and has a wider range of applications. In addition, compared with the pliers-type bending tool in the prior art, the first handle and the second handle in this solution are designed to be separated, so the bending radius can be freely adjusted.

[0038] Furthermore, in order to ensure that the bent flat wire 600 is in the same plane, Figure 2As shown, a connecting member 300 is provided, and the connecting member 300 should include at least one plane, and the first handle 100 and the second handle 200 can be rotatably connected to the plane. In this way, it can be ensured that the flat wire 600 is always kept in one plane during the bending process.

[0039] In a possible embodiment, the first handle 100 and the second handle 200 are connected to the connecting member 300 by means of the first rotating member 400 and the second rotating member 400, respectively, and the first rotating member 400 and the second rotating member 500 are connected by transmission to ensure that the first handle and the second handle rotate symmetrically. For example, the first rotating member 400 and the second rotating member 500 may include gears, and the two ensure the same rotation angle and opposite direction through gear meshing, so that the bending angle of the flat wire 600 is symmetrical.

[0040] On this basis, in order to achieve an adjustable bending radius, the relative distance between the first handle 100 and the second handle 200 on the connecting member 300 needs to be adjustable. A possible implementation is as follows Figure 4 As shown, a movable hole 310 is opened on the connecting member 300, and the first rotating member 400 and the second rotating member 500 are both arranged in the movable hole 310. The first rotating member 400 and the second rotating member 500 can be locked and unlocked in the movable hole, so that the relative distance can be adjusted.

[0041] For example, the first rotating member 400 and the second rotating member 500 may include a mandrel, which passes through the movable hole of the connecting member, one end of which is connected to the first handle 100 or the second handle 200 through a rotating bearing, and the other end of which passes through the movable hole and is connected to a locking nut. By screwing the locking nut, the positions of the first handle 100 and the second handle 200 can be locked and unlocked. This rotating structure is relatively common and is therefore not shown in the figure.

[0042] Preferably, in order to make the grip more comfortable and increase friction, the handle can be wrapped with a rubber layer 121. In addition, a flexible contact surface 113 can be provided at the contact portion between the fastener 121 and the flat wire 600 to prevent the fastener 121 from damaging the flat wire 600 during the locking process.

[0043] The above bending tool requires the operator to hold the handle and exert force outward, which is difficult. Therefore, as a further improvement, it can also be Figure 5 As shown, the first handle 100 and the second handle 200 are both designed to be L-shaped. When bent, the operator can exert force inward and downward, so that the force exertion method is more natural and more labor-saving.

[0044] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0045] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

[0046] The above description is only a preferred example of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A transformer flat wire bending tool, characterized in that: Used to fold flat wire into 90° angle in width direction, including: A first handle, the first handle comprising: A flat wire fixing portion, the flat wire fixing portion comprising: Flat wire through hole; and A fastener, which is disposed on a side of the flat wire passing hole and extends into the flat wire passing hole along a thickness direction of the flat wire, and the insertion depth of the fastener is adjustable; and A hand-held portion, the hand-held portion being arranged at an end of the first handle away from the flat wire fixing portion; and a second handle, the structure of the second handle being the same as that of the first handle; The fastener is a bolt, a threaded hole is provided on the side wall of the flat wire passing hole, and the fastener is screwed into the threaded hole; A connecting member, the connecting member comprising a plane, the first handle and the second handle being rotatably connected to the plane; The first handle and the second handle are connected to the connecting member by means of a first rotating member and a second rotating member respectively; The first rotating member and the second rotating member are in transmission connection with each other; The first rotating member and the second rotating member are connected via gear meshing.

2. The transformer flat wire bending tool according to claim 1, characterized in that: The handle portion is wrapped with a rubber layer.

3. The transformer flat wire bending tool according to claim 1, characterized in that: The relative distance between the first handle and the second handle on the connecting surface of the connecting member is adjustable.

4. The transformer flat wire bending tool according to claim 1, characterized in that: The connecting member is provided with a movable hole, the first rotating member and the second rotating member are both arranged in the movable hole, and the first rotating member and the second rotating member can be locked and unlocked in the movable hole to adjust the relative distance.

5. The transformer flat wire bending tool according to claim 1, characterized in that: The first handle and the second handle are both L-shaped.

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