Flat wire inductor structure capable of being matched with circular bonding pad hole

Abstract

The utility model relates to the technical field of inductor structures, in particular to a flat wire inductor structure capable of being matched with a circular bonding pad hole. The inductor comprises an inductor body, the inductor body comprises an elliptic cylindrical magnetic core and a flat wire wound on the magnetic core, one side of an outgoing line of the flat wire is provided with a base with a hollow middle, two symmetrical side edges of the base are respectively provided with two cylindrical false needles, the outgoing line extends to the roots of the cylindrical false needles from the hollow middle to be fixed, and the flat wire is wound on the magnetic core. The cylindrical false needle is matched with the circular bonding pad hole; bosses which abut against the circuit board and are equal in height are arranged at the four end corners of the base in an extending mode. According to the utility model, the cylindrical false needle is introduced as the pin of the inductor, so that the problem of adaptation between the flat wire inductor and the circular bonding pad hole is solved, the flat wire inductor can be inserted and fixed in the circular bonding pad hole, and the universality of the inductance element is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor structures, in particular to a flat wire inductor structure which can be matched with a circular pad hole. Background Art

[0002] In the current application field of electronic components, flat wire inductors have become the preferred components of many electronic devices due to their superior electrical performance and efficient space utilization. However, traditional flat wire inductors are wound with flat enameled wires, which requires the use of circuit board pad holes of specific shapes. This feature significantly weakens the versatility of circuit board holes and limits their interchangeability with other types of inductors (especially round inductors), thereby increasing the flexibility and difficulty of cost control in the production process.

[0003] In order to overcome the above technical bottlenecks, technical experts in the industry have actively explored and innovated. Although there are flat-wire vertically wound differential mode inductors and their bases disclosed in Chinese patent CN216749569U, which achieve stable installation and efficient layout of flat-wire coils through a specific inductor base structure, this type of inductor still cannot completely get rid of the dependence on flat pins, and thus cannot effectively solve the problem of compatibility with circular pad holes, so that different molds and pads need to be prepared for different inductor types in the production process, increasing production complexity and cost. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a flat wire inductor structure that can be matched with a circular pad hole, by introducing a cylindrical dummy needle as the pin of the inductor, the adaptation of the flat wire inductor and the circular pad hole is achieved, which not only retains the original electrical performance advantages of the flat wire inductor, but also significantly improves its market versatility and reduces the mold cost and complexity in the production preparation stage.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A flat wire inductor structure that can match a circular pad hole comprises an inductor body, the inductor body comprises an elliptical cylindrical magnetic core, and a flat wire wound on the magnetic core, a base with a hollow center is installed on one side of the lead wire of the flat wire, two cylindrical dummy needles are respectively arranged on two symmetrical sides of the base, the lead wire extends from the hollow center to the root of the cylindrical dummy needle for fixation, and the cylindrical dummy needle matches the circular pad hole; bosses of equal height that contact with a circuit board are extended from the four end corners of the base.

[0007] This technical solution solves the adaptation problem between the flat wire inductor and the circular pad hole by introducing a cylindrical dummy pin as the pin of the inductor, enabling the flat wire inductor to be inserted and fixed in the circular pad hole, greatly improving the versatility of the inductor component. Specifically, the flat wire extends through the hollow base in the middle to the root of the cylindrical dummy pin for fixation, realizing the electrical connection between the flat wire inductor and the dummy pin, not only ensuring the smooth transmission of current, but also enhancing the overall electrical connection reliability of the inductor through the stability of the dummy pin; the four equal-height bosses on the lower side of the base are not only used to contact the surface of the circuit board, but also play a role in preventing the inductor from tilting; due to the sufficient length of the bosses, it can ensure that the inductor remains horizontal during the installation process, avoiding tilting caused by uneven winding length of the flat wire or external forces during the installation process, thereby improving the stability of the inductor installation; manufacturers do not need to use dedicated circuit board pad holes for flat wire inductors, but utilize the existing circular pad holes for production, thus reducing the mold cost and production cost; this structure simplifies the production process, improves production efficiency and the yield rate, enabling manufacturers to respond to market demands faster and enhancing market competitiveness.

[0008] In addition, the flat wire inductor structure proposed above according to the present utility model that can be matched with the circular pad hole also has the following additional technical features:

[0009] According to an embodiment of the present utility model, an arc surface that fits the flat wire is provided on the side of the base that contacts the flat wire.

[0010] This technical solution optimizes the structure of the base by adding an arc surface that fits the flat wire on the side of the base that contacts the flat wire, so as to improve the contact tightness and conductive efficiency between the flat wire and the base.

[0011] According to an embodiment of the present utility model, reinforcing ribs are provided at the hollow part in the middle of the base, and the reinforcing ribs are arranged in a cross shape; the flat wire passes through between the cross-shaped reinforcing ribs.

[0012] This technical solution enhances the structural strength of the base by adding cross-shaped reinforcing ribs at the hollow part in the middle of the base and passing the flat wire between the reinforcing ribs, while ensuring the stable passage of the flat wire, and improving the overall durability of the inductor.

[0013] According to an embodiment of the present utility model, a notch is provided on the side of the base, and the flat wire extends from the outside of the notch inward to the root of the cylindrical dummy pin for fixation.

[0014] This technical solution simplifies the fixation process of the flat wire and improves production efficiency by providing a notch on the side of the base, enabling the flat wire to conveniently extend from the outside of the notch to the root of the cylindrical dummy pin for fixation.

[0015] According to an embodiment of the present utility model, the end of the flat wire is bent into a circle and fixed to the root of the cylindrical dummy pin.

[0016] This technical solution innovates the fixing method of the flat wire by bending the end of the flat wire into a circle and fixing it at the root of the cylindrical dummy pin, which not only enhances the firmness of the fixation but also optimizes the wiring neatness of the inductor.

[0017] According to an embodiment of the present utility model, the length of the cylindrical dummy pin is greater than the height of the boss. When the boss abuts against the surface of the circuit board, the cylindrical dummy pin is inserted into the circular pad hole for welding and fixing.

[0018] This technical solution ensures that the length of the cylindrical dummy pin exceeds the height of the boss, so that while the boss is in close contact with the surface of the circuit board, the dummy pin can penetrate into the circular pad hole for welding and fixing, thereby realizing a more firm electrical connection between the inductor and the circuit board.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] (1) Improve versatility and compatibility: By introducing a cylindrical dummy pin as a pin, the problem of adapting the flat wire inductor to the circular pad hole is successfully solved, enabling the same inductor component to be adapted to multiple circuit boards, greatly improving the versatility of the inductor component and reducing the mold cost and time cost in the production process;

[0021] (2) Enhance electrical connection and installation stability: The cylindrical dummy pin not only ensures smooth electrical connection between the flat wire and the circuit board but also improves the reliability of the overall electrical connection through its stability; The equal-height bosses under the base effectively prevent the inductor from tilting during installation, ensuring the stability and accuracy of installation and improving the reliability of the product;

[0022] (3) Improve production efficiency and market competitiveness: Simplify the production process, reduce production steps and costs, and improve production efficiency and the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model.

[0024] In the figure: 1, inductor body; 2, base; 3, cylindrical dummy pin; 4, lead wire; 5, boss. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figure 1 As shown, this embodiment provides a flat wire inductor structure that can match a circular pad hole, including an inductor body 1, the inductor body 1 includes an elliptical cylindrical magnetic core, and a flat wire wound on the magnetic core, a base 2 with a hollow center is installed on one side of the lead wire 4 of the flat wire, two cylindrical dummy needles 3 are respectively arranged on the symmetrical two sides of the base 2, the lead wire 4 extends from the hollow center to the root of the cylindrical dummy needle 3 for fixation, and the cylindrical dummy needle 3 matches the circular pad hole; the four end corners of the base 2 are extended with bosses 5 of the same height that conflict with the circuit board.

[0028] like Figure 1 As shown, the technical solution solves the adaptation problem between the flat wire inductor and the circular pad hole by introducing a cylindrical dummy needle 3 as the pin of the inductor, so that the flat wire inductor can be inserted and fixed in the circular pad hole, greatly improving the versatility of the inductor component. Specifically, the flat wire is extended through the hollow base 2 in the middle to the root of the cylindrical dummy needle 3 for fixation, thereby realizing the electrical connection between the flat wire inductor and the dummy needle, which not only ensures the smooth transmission of current, but also enhances the overall electrical connection reliability of the inductor through the stability of the dummy needle; the four equal-height bosses 5 on the lower side of the base 2 are not only used to contact the surface of the circuit board, but also prevent the inductor from tilting; since the height of the boss 5 is long enough, it can ensure that the inductor remains horizontal during the installation process, avoiding the tilting caused by uneven winding length of the flat wire or external force during the installation process, thereby improving the stability of the inductor installation; manufacturers do not need to use separate circuit board pad holes for flat wire inductors, but can use existing circular pad holes for production, thereby reducing mold costs and production costs; this structure simplifies the production process, improves production efficiency and yield rate, and enables manufacturers to respond to market demand more quickly and enhance market competitiveness.

[0029] In addition, the flat wire inductor structure that can match the circular pad hole according to the utility model also has the following additional technical features:

[0030] According to an embodiment of the present invention, a side of the base 2 in contact with the flat wire is provided with a curved surface that fits the flat wire.

[0031] This technical solution optimizes the structure of the base 2 by adding a curved surface that fits the flat wire on the side of the base 2 that contacts the flat wire, so as to improve the contact tightness and conductive efficiency between the flat wire and the base 2.

[0032] According to an embodiment of the utility model, a reinforcing rib is provided at the hollowed-out middle portion of the base 2, and the reinforcing rib is arranged in a cross-shaped shape; the flat wire passes through between the cross-shaped reinforcing ribs.

[0033] This technical solution enhances the structural strength of the base 2 by adding a cross-shaped reinforcing rib in the hollow part in the middle of the base 2 and passing a flat wire between the reinforcing ribs, while ensuring the stable passage of the flat wire, thereby improving the overall durability of the inductor.

[0034] According to an embodiment of the present invention, a notch is provided on the side of the base 2, and the flat wire extends inward from the outside of the notch to the root of the cylindrical dummy pin 3 for fixation.

[0035] This technical solution makes a notch on the side of the base 2, enabling the flat wire to extend conveniently from the outside of the notch to the root of the cylindrical dummy pin 3 for fixation, simplifying the fixation process of the flat wire and improving production efficiency.

[0036] According to an embodiment of the present invention, the end of the flat wire is bent into a circle and fixed to the root of the cylindrical dummy pin 3.

[0037] This technical solution innovates the fixation method of the flat wire by bending the end of the flat wire into a circle and fixing it to the root of the cylindrical dummy pin 3, not only enhancing the firmness of the fixation but also optimizing the wiring neatness of the inductor.

[0038] According to an embodiment of the present invention, the length of the cylindrical dummy pin 3 is greater than the height of the convex platform 5. When the convex platform 5 abuts against the surface of the circuit board, the cylindrical dummy pin 3 is inserted into the circular pad hole for welding and fixation.

[0039] This technical solution ensures that the length of the cylindrical dummy pin 3 exceeds the height of the convex platform 5, enabling the dummy pin to penetrate into the circular pad hole for welding and fixation while the convex platform 5 is in close contact with the surface of the circuit board, thereby achieving a more firm electrical connection between the inductor and the circuit board.

[0040] The usage process of the above embodiment is as follows:

[0041] As Figure 1 shown, first, the elliptical cylindrical magnetic core wound with a flat wire is installed on the base 2 with a hollow in the middle. The flat wire extends through the hollow part of the base 2 to the root of the cylindrical dummy pin 3 and is fixed. The entire inductor is placed on the circuit board, and the four equal-height convex platforms 5 of the base 2 are in close contact with the surface of the circuit board to prevent the inductor from tilting. The cylindrical dummy pin 3 is inserted into the circular pad hole, and the electrical connection between the inductor and the circuit board is achieved through welding. In the working state, the current is smoothly transmitted through the flat wire to the cylindrical dummy pin 3 and then introduced into the circuit board by the cylindrical dummy pin 3 to complete the function of the inductor. The entire inductor structure simplifies the production process, reduces production steps and costs, and improves production efficiency and the yield rate.

[0042] Although the present utility model has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present utility model is not limited thereto. Without departing from the spirit and essence of the present utility model, those of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present utility model, and all such modifications or substitutions shall fall within the scope of the present utility model. / Any person skilled in the art within the technical scope disclosed by the present utility model can easily conceive of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A flat wire inductor structure that can be matched with a circular pad hole, comprising an inductor body (1), the inductor body (1) including an elliptical columnar magnetic core and a flat wire wound around the magnetic core, characterized in that, On one side of the lead wire (4) of the flat wire, a base (2) with a hollow middle is installed. On the symmetric two side edges of the base (2), two cylindrical dummy pins (3) are respectively arranged. The lead wire (4) extends from the hollow middle to the root of the cylindrical dummy pin (3) for fixation, and the cylindrical dummy pin (3) is matched with the circular pad hole; at the four corner ends of the base (2), there are convex platforms (5) of equal height extending to contact the circuit board.

2. The flat wire inductor structure capable of matching with a circular pad hole as described in claim 1, characterized in that, On the side of the base (2) in contact with the flat wire, there is an arc surface that fits the flat wire.

3. The flat wire inductor structure capable of matching with a circular pad hole according to claim 1 or 2, characterized in that In the hollow middle part of the base (2), there are reinforcing ribs arranged in a cross shape; the flat wire passes through between the cross-shaped reinforcing ribs.

4. The flat wire inductor structure capable of matching with a circular pad hole as described in claim 3, characterized in that, On the side of the base (2), there is a notch, and the flat wire extends from the outside of the notch inward to the root of the cylindrical dummy pin (3) for fixation.

5. The flat wire inductor structure capable of matching with a circular pad hole according to claim 1 or 4, characterized in that The end of the flat wire is bent into a circle and fixed at the root of the cylindrical dummy pin (3).

6. The flat wire inductor structure capable of matching with a circular pad hole as described in claim 5, characterized in that The length of the cylindrical dummy pin (3) is greater than the height of the convex platform (5). When the convex platform (5) contacts the surface of the circuit board, the cylindrical dummy pin (3) is inserted into the circular pad hole for welding and fixation.

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