Integrally-formed inductor
By introducing radiation-shielding metal sheets and improved coil contact connection sheet structures into inductors, the problems of cumbersome processing and large size of existing inductors have been solved, enabling the production of miniaturized and ultra-thin inductors and improving processing efficiency and performance.
Patent Information
- Application Number
- CN202520131176.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing one-piece molded inductors are difficult to process, have low production efficiency, and are large in size due to the thickness of the shielding cover, the presence of positioning bumps and connecting pieces, which makes them unsuitable for the miniaturization and ultra-thinning requirements of electronic products.
Radiation-proof metal sheets are embedded in the upper side of the powder-pressed molded body, and the connection stability with the powder-pressed molded body is enhanced by connecting arms and stabilizing arms of coil contact connecting plates, which simplifies the processing technology and reduces the product size.
It realizes an inductor with simple structure, small size and high performance, which is easy to process and produce, and meets the requirements of miniaturization and ultra-thinness of electronic products.
Smart Images
Figure CN223462105U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the inductor field especially relates to an integrally-formed inductor. BACKGROUND
[0002] The integrally-formed inductor refers to the inductance coil mould pressing package in the forming powder material, and then the inductance element is processed.The existing integrally-formed inductor is packaged in the forming powder material, and the inductance intermediate body is formed, in order to avoid the electromagnetic interference to other electronic elements in the use process, the shielding cover needs to be installed on the inductance intermediate body, and its structure is shown in Figure 1 The shielding cover includes the upper cover plate 01, the connecting piece 02 is arranged on the left and right sides of the upper cover plate 01, the positioning boss 04 that cooperates with the front and rear two sides of the intermediate body 03 is arranged on the front and rear two sides of the upper cover plate 01; when processing, the connecting piece 02 in the left and right sides of the upper cover plate 01 is glued, then the upper cover plate is covered on the upper side of the inductance intermediate body, finally the connecting piece is bent, the main body is attached to the left and right sides of the inductance intermediate body, and the end is bent to the lower side of the inductance intermediate body, and the shielding cover is fixed and bonded on the inductance intermediate body.The existing integrally-formed inductor has the problems of troublesome processing, low production efficiency, large size and poor product quality due to the thickness of the shielding cover and the existence of the positioning boss and the connecting piece, and it is not suitable for the small and ultra-thin electronic products. CONTENT
[0003] The utility model discloses a kind of integrally-formed inductors, which are simple in structure, small in size, high in product performance and easy to process and produce.
[0004] The technical scheme of the utility model is as follows:
[0005] An integrally-formed inductor includes an inductor coil, two coil contact connecting pieces and a powder pressing forming body. The inductor coil is molded and packaged inside the powder pressing forming body. The two coil contact connecting pieces are metal pieces, respectively molded and fixed on the left and right sides of the inductor coil and the lower side of the powder pressing forming body. The two wire terminals of the inductor coil are connected to the two coil contact connecting pieces. The powder pressing forming body has a radiation-proof metal piece molded and fixed on the upper side. The radiation-proof metal piece is embedded and fixed inside the upper side of the powder pressing forming body. The radiation-proof metal piece has at least two reinforced connecting holes.
[0006] The powder pressing forming body is a square box body. The radiation-proof metal piece is a rectangular copper piece. The four corners of the radiation-proof metal piece have reinforced connecting holes.
[0007] The coil contact connecting piece in the utility model is characterized by comprising a rectangular outer connecting piece, a support part being bent upwards on the outer side of the outer connecting piece, a connecting arm and a stable arm being respectively bent inwards on the front and back ends of the upper side of the support part, and the two ends of the inductance coil being connected with the connecting arms of the two coil contact connecting pieces respectively.
[0008] The connecting arm extends to the front of the inner side from the front end of the upper side of the support part, and the stable arm extends to the back of the inner side from the back end of the upper side of the support part, so that the stability of the coil contact connecting piece and the powder compression molding body is further improved.
[0009] The outer connecting piece is protruded from the lower side of the powder compression molding body, the support part is located on the outer side of the powder compression molding body, and the connecting arm and the stable arm are parallel to the outer connecting piece and located on the inner side of the powder compression molding body and the outer side of the inductance coil.
[0010] The anti-radiation metal sheet is embedded and fixed on the upper side of the powder compression molding body, can be molded with the inductance coil and the coil contact connecting piece in the powder compression molding body, can be 0.1mm, does not affect the product appearance, reduces the product size, simplifies the processing technology, and is more suitable for the small and ultra-thin target of electronic products. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 The utility model discloses a three-dimensional structure schematic diagram of the integrated inductor in prior art.
[0012] Figure 2 It is the structure schematic diagram of the utility model.
[0013] Figure 3 It is the three-dimensional structure schematic diagram of the utility model.
[0014] Figure 4 It is the three-dimensional structure schematic diagram of the utility model after removing the powder compression molding body.
[0015] Figure 5 It is the three-dimensional structure schematic diagram of the coil contact connecting piece in the utility model. PREFERRED EMBODIMENT
[0016] As Figures 2-5The shown one-piece inductor includes an inductor coil 3, two coil contact connecting sheets and a powder press-formed body 2, the inductor coil 3 is a double-layer inductor wound by a lacquered wire, and two wire ends of the inductor coil 3 are located at the lower end thereof. The inductor coil 3 is molded and encapsulated inside the powder press-formed body 2, the two coil contact connecting sheets are metal sheets, and the two coil contact connecting sheets are respectively fixed on the left and right sides of the inductor coil 3 and the lower side of the powder press-formed body 2, and the two wire ends of the inductor coil 3 are respectively welded and connected with the two coil contact connecting sheets. As can be seen from the figure, the coil contact connecting sheet includes a rectangular outer sheet 5, the outer sheet 5 is used for connecting with a circuit board or an electronic device, an upwardly bent supporting portion 4 is arranged on the outer side of the outer sheet 5, front and rear ends of the upper side of the supporting portion 4 are respectively provided with an inwardly bent connecting arm 7 and a stabilizing arm 8, and the two wire ends of the inductor coil 3 are respectively connected with the connecting arms 7 of the two coil contact connecting sheets. The lower side of the outer sheet 5 protrudes from the lower side of the powder press-formed body 2, the supporting portion 4 is located on the outer side (left side or right side) of the powder press-formed body, the connecting arm 7 and the stabilizing arm 8 are parallel to the outer sheet 5 and are located inside the powder press-formed body 2 and on the outer side (left side or right side) of the inductor coil. During the molding process, the connecting arm 7 and the stabilizing arm 8 are molded in the powder press-formed body 2, and the connecting arm 7 and the stabilizing arm are respectively located at the front and rear ends of the upper side of the supporting portion 4, thereby enhancing the stability of the connection with the powder press-formed body. The upper side of the powder press-formed body is molded and fixed with a radiation-proof metal sheet 1, the radiation-proof metal sheet 1 is embedded and fixed inside the upper side of the powder press-formed body 2, and at least two reinforcing connecting holes 6 are arranged on the radiation-proof metal sheet 1. As can be seen from the figure, the powder press-formed body 2 is in the shape of a square box, the radiation-proof metal sheet 1 is a rectangular copper sheet, and the reinforcing connecting holes 6 are respectively arranged at the four corners of the radiation-proof metal sheet 1. During the molding process, the material of the powder press-formed body 2 enters the reinforcing connecting holes 6, thereby enhancing the stability of the connection. Figure 3 、 Figure 4 The powder press-formed body 2 is formed by molding a powder material.
[0017] Further improvement of the utility model, the connecting arm 7 extends to the inside front side from the front end of the upper side of the supporting portion 4, and the stabilizing arm 8 extends to the inside rear side from the rear end of the upper side of the supporting portion 4. The stability of the connection between the coil contact connecting sheet and the powder press-formed body is further improved. In the utility model, the inside side is the side close to the inductor coil 3, and the outside side is the side away from the inductor coil.
[0018] The anti-radiation metal sheet is embedded and fixed in the upper side of the powder compression molding body, can be molded together with the inductance coil and the coil contact connecting sheet in the powder compression molding body, can be 0.1mm, does not affect the product appearance, reduces the product size, improves the performance, simplifies the processing technology, and is more suitable for the small and ultra-thin target of the electronic product.
Claims
1. An integrally molded inductor comprising an inductor coil, two coil contact connecting pieces and a powder-press molded body, said inductor coil being molded and encapsulated inside the powder-press molded body, said two coil contact connecting pieces being metal pieces, respectively molded and fixed on the left and right sides of the inductor coil and on the lower side of the powder-press molded body, and the two wire ends of the inductor coil being connected to the two coil contact connecting pieces, characterized in that, The radiation-proof metal sheet is embedded and fixed on the upper side of the powder compression molding body, and at least two reinforced connecting holes are arranged on the radiation-proof metal sheet. 2. The integrally formed inductor of claim 1, wherein The powder compression molding body is in the shape of a square box, the radiation-proof metal sheet is a rectangular copper sheet, and a reinforced connecting hole is arranged at each corner of the radiation-proof metal sheet.
3. The integrally formed inductor according to claim 1 or 2, wherein The coil contact connecting sheet comprises a rectangular outer connecting sheet, an upwardly bent supporting part is arranged on the outer side of the outer connecting sheet, an inwardly bent connecting arm and a stable arm are respectively arranged at the front and rear ends of the upper side of the supporting part, and the two ends of the inductor coil are connected with the connecting arms of the two coil contact connecting sheets.
4. The integrally formed inductor of claim 3, wherein The connecting arm extends inwardly and forwardly from the front end of the upper side of the supporting part, and the stable arm extends inwardly and rearwardly from the rear end of the upper side of the supporting part.
5. The integrally formed inductor of claim 4, wherein, The lower side of the outer connecting sheet protrudes from the lower side of the powder compression molding body, the supporting part is located on the outer side of the powder compression molding body, and the connecting arm and the stable arm are parallel to the outer connecting sheet and located on the inner side of the powder compression molding body and on the outer side of the inductor coil.