CN205043161U - Semicircle loop type magnetic core die and inductive coupling coil - Google Patents

Abstract

The utility model relates to a semicircular-shaped magnetic powder core mold, which comprises a middle mold, an upper die and a lower die. The center of the middle die is provided with a semi-circular middle die hole, and the upper die is matched with the middle die hole. Insert it into the hole of the middle die from the upper side of the middle die, and insert the lower punch into the hole of the middle die from the lower side of the middle die in cooperation with the hole of the middle die. A gap is left between the stamping surfaces of the lower die to form a die cavity. In the utility model, a semicircle-shaped middle mold hole is opened in the center of the middle mold, and the upper punch and the lower punch are matched to form a semi-circular magnetic powder core through a hydraulic press; the annular product is evolved into a semi-circular product, and the end surface area is reduced. It is half the size, and without investing in larger equipment, it can also produce large ring products, which saves the initial cost investment; the product has a wider range of uses, not only can be combined into ring products, but also can be combined with cubes and other products. Combined into runway products and more.

Description

A semi-circular magnetic powder core mold and an inductively coupled coil

technical field

The utility model relates to the field of magnetic powder core production, in particular to a semicircle-shaped magnetic powder core mold.

Background technique

Magnetic powder cores can be widely used in the production of various electronic components such as communication, energy, automobile industry, home appliances, automatic door control and inductors, filters, transformers, and inverters. The existing ring mold includes a middle mold, an upper punch, a lower punch, and a core rod, which are installed on a hydraulic press, and form an annular cavity through the combination of the middle mold, the lower punch, and the core rod, and fill the cavity with powder, Then the hydraulic press drives the upper punch to pressurize and press to form a ring product; the mold requires high pressing force, especially for large ring products, which requires higher and more expensive equipment costs, and has a single purpose and a complex mold structure.

Utility model content

Aiming at the deficiencies of the prior art, the utility model aims to provide a semi-circular magnetic powder core mold with wide application, simple mold structure and low production equipment investment cost.

The utility model is realized through the following technical solutions.

A semicircular-shaped magnetic powder core mold, including a middle mold, an upper punch and a lower punch, the center of the middle mold is provided with a semi-circular middle mold hole, and the upper punch cooperates with the middle mold hole The upper side of the mold is inserted into the hole of the middle die, and the lower punch is matched with the hole of the middle die and inserted into the hole of the middle die from the lower side of the middle die. A gap is left between the faces to form a mold cavity.

Preferably, the middle mold is provided with a fixing screw hole for matching with a hydraulic press.

Preferably, the upper die is the same as the lower die.

An inductively coupled coil, comprising two semicircular magnetic powder cores made of the semicircular magnetic powder core mold according to claim 1, and a complex turn inductance coil, and the two semicircular magnetic powder cores form a complete A ring-shaped magnetic powder core, on which the plurality of turns of the inductance coil is wound.

Preferably, it also includes two square magnetic powder cores, the square magnetic powder core cooperates with the semi-circular magnetic powder core to form a complete racetrack-shaped magnetic powder core, and the complex number of turns of the inductance coil is wound on the racetrack-shaped magnetic powder core .

Compared with the prior art, the utility model has the advantages that: the utility model has a semicircle-shaped middle mold hole in the center of the middle mold, cooperates with the upper die and the lower die, and presses it into a semi-circular magnetic powder core through a hydraulic press; The ring product has evolved into a semi-circular product, which reduces its end surface area by half. On the premise of not investing in large equipment, it can also produce a large ring product, saving the initial cost investment; the product has a wider range of uses, not only It can be combined into ring products, and can be combined with cubes and other products to finally be combined into runway products, etc.; combined magnetic powder cores can be replaced by machine-made coils instead of manual winding, which improves efficiency and reduces costs.

Description of drawings

Fig. 1 is the structural representation of a kind of semicircle type magnetic powder core mold of the present utility model;

Fig. 2 is the structural representation of a kind of inductive coupling coil of the present utility model;

Fig. 3 is the structural representation of the racetrack type magnetic powder core of the present utility model;

In the figure: 1. Middle mold, 2. Upper die, 3. Lower die, 4. Fixed screw hole, 5. Semi-circular magnetic powder core, 6. Complex turn inductor coil, 7. Square magnetic powder core, 101. Middle die hole .

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

As shown in Fig. 1, a kind of mold of semicircle-shaped magnetic powder core 5 comprises middle die 1, upper die 2 and lower die 3, and the center of described middle die 1 is provided with semi-circular die hole 101, and described upper Die 2 cooperates with the middle die hole 101 and is inserted into the middle die hole 101 from the upper side of the middle die 1, and the lower die 3 is inserted into the middle die hole 101 from the lower side of the middle die 1 in cooperation with the middle die hole 101. The middle mold hole 101, there is a gap between the punching surface of the upper punch 2 and the punching surface of the lower punch 3 to form a die cavity, and the middle mold 1 is provided with a fixing screw hole 4 that cooperates with the hydraulic press.

As a preferred embodiment, the upper die 2 is the same as the lower die 3 .

As shown in Figure 2, a kind of inductively coupled coil comprises two semicircular magnetic powder cores 5 made of the semicircular magnetic powder core 5 molds described in claim 1, a complex number of turns of inductance coils 6, two described The semicircular-shaped magnetic powder core 5 forms a complete circular-shaped magnetic powder core, and the complex number of turns of the inductance coil 6 is wound on the circular-shaped magnetic powder core

As shown in Figure 3, as a preferred embodiment, it also includes two square magnetic powder cores 7, the square magnetic powder core 7 cooperates with the semi-circular magnetic powder core 5 to form a complete racetrack type magnetic powder core, and the complex number of turns An inductance coil (not shown in the figure) is wound on the racetrack-shaped magnetic powder core.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the implementation and protection scope of the present utility model. For those skilled in the art, they should be aware The schemes obtained by making equivalent replacements and obvious changes shall all be included in the protection scope of the present utility model.

Claims (5)

1. a kind of semi-circular type magnetic powder core mold, it is characterized in that: comprise middle die, upper die and lower die, described middle die center is provided with semi-circular type middle die hole, described upper die and described middle die The hole fits and is inserted into the hole of the middle mold from the upper side of the middle mold, and the lower punch is matched with the hole of the middle mold and inserted into the hole of the middle mold from the lower side of the middle mold. A gap is left between the stamping surfaces of the lower die to form a mold cavity. 2. The semi-circular magnetic powder core mold according to claim 1, characterized in that: the middle mold is provided with a fixing screw hole for matching with a hydraulic press. 3. The semi-circular magnetic powder core mold according to claim 1, characterized in that: the upper punch is the same as the lower punch. 4. An inductively coupled coil, characterized in that: comprising two semicircular magnetic powder cores made of the semicircular magnetic powder core mold according to claim 1, a complex number of turns of inductance coils, two semicircular rings The magnetic powder core forms a complete ring-shaped magnetic powder core, and the multiple turns of the inductance coil are wound on the ring-shaped magnetic powder core. 5. The inductively coupled coil according to claim 4, characterized in that: it also includes two square magnetic powder cores, the square magnetic powder cores cooperate with the semi-circular magnetic powder cores to form a complete racetrack type magnetic powder core, the A plurality of turns of inductance coils are wound on the racetrack-shaped magnetic powder core.