Coil spot welding die

Abstract

The utility model belongs to the technical field of inductance coil manufacturing, and particularly relates to a coil spot welding die. Comprising a substrate, a plurality of containing grooves are formed in the substrate in the longitudinal direction, the containing grooves are used for containing inductance coils, the containing grooves are arranged in 2N rows in the transverse direction of the substrate, and N is an odd number; the substrate is further provided with first containing grooves used for containing electrode pins in the longitudinal direction, the first containing grooves are formed between the Nth row of containing grooves and the (N + 1) th row of containing grooves, welding holes penetrating through the substrate are formed in the two opposite sides of each containing groove, and the welding holes are located between the containing grooves and the first containing grooves. According to the coil spot welding die provided by the embodiment of the invention, a plurality of inductance coils can be manufactured on one die at the same time, and the inductance coils and the electrode pins can be welded conveniently.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of inductance coil manufacturing, and particularly relates to a coil spot welding die. BACKGROUND

[0002] The inductance coil is an inductor which can be used at high frequency, has simple structure, excellent performance and wide wire specifications, and is particularly suitable for inductance forming technology. Before forming, the inductance coil needs to be spot welded on an electrode pin, then the electrode pin is pressure-cast with insulating iron powder, and finally the inductance coil is formed through shearing, bending and other operations. In the prior art, workers need to use electric irons to spot weld the inductance coils on the electrode pins one by one, and then the electrode pins are cut, which makes the spot welding efficiency of the coil very low and inconvenient for welding the coil and the electrode pin. CONTENT OF THE UTILITY MODEL

[0003] The application aims at the defects of the prior art, adopts the mode that a first accommodating groove corresponding to two rows of accommodating grooves is arranged on the die, designs a coil spot welding die, and solves the problem that the spot welding efficiency of the existing coil spot welding die is very low and it is inconvenient to weld the coil and the electrode pin.

[0004] To solve the above problems, the technical scheme adopted by the application is as follows:

[0005] A coil spot welding die, comprising a base plate, a plurality of accommodating grooves are arranged on the base plate along the longitudinal direction, the accommodating grooves are used for accommodating inductance coils, and the plurality of accommodating grooves are arranged into 2N rows along the transverse direction of the base plate, wherein N is an odd number.

[0006] The base plate is also provided with a first accommodating groove for accommodating an electrode pin along the longitudinal direction, the first accommodating groove is arranged between the Nth row of accommodating grooves and the N+1th row of accommodating grooves, a welding hole penetrating through the base plate is arranged on each of opposite sides of each of the accommodating grooves, and the welding hole is located between the accommodating groove and the first accommodating groove.

[0007] Preferably, a positioning column is arranged in the accommodating groove.

[0008] Preferably, the top of the positioning column protrudes from the upper surface of the accommodating groove.

[0009] Preferably, the depth of the accommodating groove is greater than the depth of the first accommodating groove.

[0010] Preferably, the inductance coil is provided with an electrical terminal at each end, the base plate is also provided with a second accommodating groove for placing the electrical terminal, the first accommodating groove is arranged between two adjacent second accommodating grooves along the transverse direction, and the two second accommodating grooves are both arranged towards the first accommodating groove.

[0011] Preferably, the second accommodating groove is provided with the welding hole near the position of the accommodating groove.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] The coil spot welding mold provided by the embodiment of the present application can realize simultaneous manufacturing of multiple inductance coils on one mold and facilitates welding of the inductance coils and electrode pins. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the present application;

[0015] Figure 2 is a structural schematic view of the electrode pin in the present application.

[0016] BRIEF DESCRIPTION OF DRAWINGS

[0017] 1. A coil spot welding mold;

[0018] 11. A base plate; 12. An accommodating groove; 13. A first accommodating groove; 14. A second accommodating groove; 15. A positioning column; 16. A welding hole; 17. An electrode pin. DETAILED DESCRIPTION

[0019] Please refer to Figure 1 The present application provides a coil spot welding mold 1, which comprises a base plate 11, the base plate 11 is provided with a plurality of accommodating grooves 12 along the longitudinal direction, the accommodating grooves 12 are used for accommodating inductance coils, and the plurality of accommodating grooves 12 are arranged into 2N rows along the transverse direction of the base plate 11, wherein N is an odd number; the base plate 11 is also provided with a first accommodating groove 13 along the longitudinal direction for accommodating an electrode pin 17, the first accommodating groove 13 is arranged between the Nth row of accommodating grooves 12 and the N+1th row of accommodating grooves 12, and the opposite sides of each accommodating groove 12 are provided with a welding hole 16 penetrating through the base plate 11, the welding hole 16 is located between the accommodating groove 12 and the first accommodating groove 13; as preferred in the embodiment, the second accommodating groove 14 is provided with the welding hole 16 near the position of the accommodating groove 12. Both ends of the inductance coil are provided with an electrical terminal, and the base plate 11 is also provided with a second accommodating groove 14 for placing the electrical terminal, the first accommodating groove 13 is arranged between the two second accommodating grooves 14 adjacent along the transverse direction, and both of the second accommodating grooves 14 are provided towards the first accommodating groove 13.

[0020] It should be noted that the inductance coil is wound by copper wire, and the opposite ends are provided with an electrical terminal, as shown in Figure 2As shown, it is a structural schematic diagram of the electrode leg 17 of the present application, the longitudinal direction of the embodiment is the length direction of the substrate 11, and the transverse direction is the width direction of the substrate 11; wherein the size of the accommodating groove 12 is matched with the size of the inductor coil, which can be set according to actual needs; in addition, the welding hole 16 of the embodiment is a hole penetrating through the substrate 11, so that an electric welding tool can be used on both sides of the welding hole 16 during use to weld the electrical terminals of the inductor coil and the electrode leg 17 together.

[0021] In specific use, first, the inductor coil is placed in the accommodating groove 12 (which can be realized by a mechanical hand), the two electrical terminals of the inductor coil are placed in the second accommodating groove 14, and at the same time, the electrode leg 17 can be placed in the first accommodating groove 13 (which can be realized by a mechanical hand), and then the electrical terminals of the inductor coil and the electrode leg 17 are welded at the position of the welding hole 16 by the electric welding tool, so that the electrical connection of the inductor coil and the electrode leg 17 is realized. In addition, since the mold of the present application has at least two rows of accommodating grooves 12, and the first accommodating groove 13 is arranged between the two rows of accommodating grooves 12 in the same column, the coil spot welding mold 1 of the embodiment can realize the function that one electrode leg 17 can be welded with two rows of inductor coils at the same time, so that the welding efficiency can be greatly improved, and after the welding is completed, the excess electrode leg 17 can be directly cut off.

[0022] It can be seen that the coil spot welding mold 1 provided by the embodiment of the present application can realize the simultaneous manufacturing of multiple inductor coils on one mold, and facilitates the welding of the inductor coil and the electrode leg 17. It should be noted that four rows or more rows of accommodating grooves 12 can be arranged along the transverse direction of the substrate 11 on one mold, which can be set according to actual needs. As long as the accommodating grooves 12 are arranged as an even number along the transverse direction of the substrate 11.

[0023] As a preferred mode, please refer to Figure 1 , the accommodating groove 12 is provided with a positioning column 15, and the top of the positioning column 15 extends out of the upper surface of the accommodating groove 12.

[0024] It can be understood that the design of the positioning column 15 can more stably limit the inductor coil in the accommodating groove 12. The top of the positioning column 15 extending out of the upper surface of the accommodating groove 12 can further limit the inductor coil in the accommodating groove 12, so that it is not easy to fall off.

[0025] As a preferred mode, please refer to Figure 1 , the depth of the accommodating groove 12 is greater than the depth of the first accommodating groove 13.

[0026] As a preferred manner, the design that the depth of the accommodating groove 12 is greater than the depth of the first accommodating groove 13 can facilitate the welding of the electrode pin 17 and the electrical terminal of the inductive coil.

Claims

1. A coil spot welding die comprising a base plate (11), characterized in that: The substrate (11) is provided with a plurality of accommodating grooves (12) along the longitudinal direction, the accommodating grooves (12) are used for accommodating inductance coils, and the plurality of accommodating grooves (12) are arranged into 2N rows along the transverse direction of the substrate (11), wherein N is an odd number; The substrate (11) is further provided with a first accommodating groove (13) for accommodating electrode pins (17) along the longitudinal direction, the first accommodating groove (13) is arranged between the accommodating grooves (12) of the Nth row and the accommodating grooves (12) of the N+1th row, and the opposite sides of each accommodating groove (12) are provided with welding holes (16) penetrating through the substrate (11), the welding holes (16) are located between the accommodating grooves (12) and the first accommodating groove (13).

2. The coil spot welding die of claim 1, wherein: The accommodating grooves (12) are provided with positioning columns (15).

3. The coil spot welding die of claim 2, wherein: The positioning columns (15) protrude from the upper surface of the accommodating grooves (12).

4. The coil spot welding die of claim 1, wherein: The depth of the accommodating grooves (12) is greater than the depth of the first accommodating groove (13).

5. The coil spot welding die of claim 1, wherein: Both ends of the inductance coil are provided with electrical terminals, the substrate (11) is further provided with a second accommodating groove (14) for placing the electrical terminals, the first accommodating groove (13) is arranged between two adjacent second accommodating grooves (14) along the transverse direction, and the second accommodating grooves (14) are both arranged towards the first accommodating groove (13).

6. The coil spot welding die of claim 5, wherein: The welding holes (16) are arranged at the positions close to the accommodating grooves (12) of the second accommodating grooves (14).

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