CN220041559U

CN220041559U - Novel PFC inductance structure

Info

Publication number: CN220041559U
Application number: CN202321641539.6U
Authority: CN
Inventors: 李青山; 李兵; 周国军
Original assignee: Qingdao Yunlu Energy Technology Co Ltd
Current assignee: Qingdao Yunlu Energy Technology Co Ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-11-17
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to the technical field of inductor structures, in particular to a novel PFC inductor structure. The utility model comprises a terminal block base integrally processed and formed, wherein the terminal block base is L-shaped and comprises a terminal block part connected with an inserting sheet terminal and a base part connected with a coil; the inserting sheet terminal is L-shaped and comprises a terminal body, a bending part arranged at the upper part of the terminal body, a limiting part arranged at the middle part of the terminal body and a claw part arranged at the bottom of the terminal body; the terminal block part is in a T-shaped arrangement and comprises a supporting part connected with the base part and plug-in parts positioned at two sides of the top of the supporting part; the coil is fixed on the arc surface of the base part through a fixing adhesive. The utility model has the advantages of high efficiency in the whole assembly process, high connection strength of the coil and the inserting sheet terminal, simple operation during use, high production efficiency and low reject ratio.

Description

Novel PFC inductance structure

Technical Field

The utility model relates to the technical field of inductor structures, in particular to a novel PFC inductor structure.

Background

PFC (Power Factor CorrecTIon power factor correction) inductance is a core component of PFC circuits. With the vigorous development of the electronic and electric industry, PFC inductors are also widely used. Most of conventional PFC inductors on the market are directly used as pins through leads and are connected with a board in a welding mode, for example, a base applied to the PFC inductor is provided by Chinese authorized bulletin No. CN218730245U, and the structural scheme can be positioned at an installation position through rubber materials, but cannot solve the problem of substitution of a large-current and aluminum wire scheme; some PFC inductors used for high current cannot be directly welded into a circuit board, such as a PFC inductor structure provided by Chinese authorized bulletin No. CN218333368U, and the PFC inductor with high current is connected into a circuit in an electronic beam mode, so that the space occupation rate of the product is high, and the processing cost of the product is high; also, aluminum wires are connected through an electronic wire harness, and the connection part is easy to break, so that the risk is great.

Disclosure of Invention

The utility model aims to solve the technical problems that: the novel PFC inductance structure has the advantages of being small in space occupancy rate, low in cost, high in production efficiency, capable of improving connection of coil aluminum wires, guaranteeing quality of products, improving process problems and improving production efficiency.

The technical scheme of the utility model is as follows:

the utility model provides a novel PFC inductance structure, includes integrated into one piece's terminal platform base, and terminal platform base is L type setting, including the terminal platform part that links to each other with the inserted sheet terminal to and the base part that links to each other with the coil, wherein:

the inserting piece terminal is L-shaped and comprises a terminal body, a bending part arranged at the upper part of the terminal body, a limiting part arranged at the middle part of the terminal body and a claw part arranged at the bottom of the terminal body; the bending part comprises side wings with two inwards bent sides and is used for limiting the downward movement of the inserting sheet terminal; the width of the limiting part is larger than that of the terminal body, and the limiting part is used for limiting the upward movement of the inserting sheet terminal; the clamping claw part is perpendicular to the terminal body and is provided with a clamping claw connected with the coil;

the terminal block part is in T-shaped arrangement and comprises a supporting part connected with the base part and plug-in parts positioned at two sides of the top of the supporting part; the plug-in parts at two sides are respectively connected with the corresponding plug-in sheet terminals; the middle part of the plug-in part is provided with a limit transverse groove matched with the bending part, and the limit transverse groove is used for receiving the bending part expanding to two sides; the bottom of the plug-in part is provided with a plug-in joint matched with the terminal body, and the width of the plug-in joint is smaller than that of the limit part;

the coil is fixed on the arc surface of the base part through a fixing adhesive.

Preferably, the top of the terminal body is provided with a plug hole which is matched with the terminal sheath for use.

Preferably, the leads of the coil are led out from both sides of the terminal block portion, and are directly soldered after being engaged with the claws from the bottom of the claw portions.

Preferably, the terminal body is inserted into the insertion seam from bottom to top, and the bending part is in an inward furling state.

Preferably, the limiting part at the bottom of the terminal body is abutted below the inserting joint, and the bending part is in an outwards-unfolded state along the limiting transverse groove.

Preferably, when the bending part is folded inwards, the side wings at the two sides of the bending part are parallel to each other and form an included angle of 90 degrees with the plane where the terminal body is positioned; when the bending part is unfolded outwards, the side wings at the two sides of the bending part are arranged at obtuse angles.

Preferably, the section of each claw of the claw part is U-shaped, and the U-shaped opening of each claw is downward.

Preferably, the distance between the clamping jaws is the same as the distance between the two leads of the coil, and the height of the clamping jaws is consistent with the height of the leads.

Preferably, the base part is in an upward convex table shape, the periphery of the bottom of the base part is provided with a mounting hole, and the inner edge of the bottom of the base part is provided with a plurality of reinforcing ribs.

Preferably, the mounting holes are used in cooperation with an external mounting plate.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The novel pluggable PFC inductance structure is adopted, the traditional electronic wire harness connection is not adopted, the space occupancy rate of the structural product is small, and meanwhile, the problem that an aluminum wire is connected with the electronic wire harness is solved.

(2) The production efficiency is higher, the problem of connection of coil aluminum wires is improved, the quality of products is guaranteed, the process problem is improved, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view of the overall assembly of the present utility model.

Fig. 2 is a schematic structural view of the tab terminal.

Fig. 3 is one of schematic structural views of the terminal block base.

Fig. 4 is a second schematic view of the structure of the terminal block base.

In the figure: 1. a coil; 2. a tab terminal; 21. a bending part; 22. a limit part; 23. a clamping claw part; 3. a terminal block base; 31. a limit transverse groove; 32. inserting a joint; 33. a mounting hole; 34. an arc surface; 35. a plug-in part; 4. and (5) fixing glue.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution 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, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Example 1

As shown in fig. 1, this embodiment provides a novel PFC inductor structure, including integrated into one piece's terminal block base 3, terminal block base 3 is the setting of L type, including the terminal block part that links to each other with inserted sheet terminal 2 to and the base part that links to each other with coil 1, wherein:

as shown in fig. 2, the tab terminal 2 is L-shaped and includes a terminal body, a bending part 21 provided at an upper part of the terminal body, a limiting part 22 provided at a middle part of the terminal body, and a claw part 23 provided at a bottom part of the body; the bending part 21 comprises side wings with two sides bent inwards, and the bending part 21 is used for limiting the downward movement of the inserting piece terminal 2; the width of the limiting part 22 is larger than that of the terminal body, and the limiting part 22 is used for limiting the upward movement of the inserting sheet terminal 2; the clamping claw part 23 is perpendicular to the terminal body, and the clamping claw part 23 is provided with a clamping claw connected with the coil 1;

the terminal block part is in a T-shaped arrangement and comprises a supporting part connected with the base part and plug-in parts 35 positioned on two sides of the top of the supporting part; the plug-in parts 35 on two sides are respectively connected with the corresponding plug-in sheet terminals 2; the middle part of the plug-in part 35 is provided with a limit transverse groove 31 matched with the bending part 21, and the limit transverse groove 31 is used for receiving the bending part 21 expanding to two sides; the bottom of the plug-in part 35 is provided with a plug-in joint 32 matched with the terminal body, and the width of the plug-in joint 32 is smaller than that of the limit part 22;

the coil 1 is fixed to the circular arc surface 34 of the base portion by a fixing adhesive 4.

Working principle:

firstly, the coil 1 is placed on the arc surface 34 of the terminal block base 3, and then is fixed by using the fixing glue 4.

Secondly, the inserting sheet terminal 2 is inserted upwards from the inserting joint 32 of the terminal platform base 3 along the vertical direction, the upper surface of the limiting part 22 is contacted with the lower surface of the inserting joint 32, the terminal body stops moving upwards, at the moment, the bending part 21 of the inserting sheet terminal 2 is bent outwards and reversely for a certain angle, and the bending part 21 is changed into an outwards included angle state of an opening from an original parallel state, so that the fixing of the inserting sheet terminal 2 and the terminal platform base 3 is realized.

The wire of the coil 1 is threaded into the claw part 23 again, the claws are engaged and then are directly welded, and the conduction between the lead wire of the coil 1 and the inserting terminal 2 is realized.

Finally, as shown in fig. 3, the mounting hole 33 of the terminal block base 3 is used in cooperation with the customer mounting plate, and the top of the tab terminal 2 is used in cooperation with the terminal sheath.

The utility model can effectively solve the problem of connection of the coil 1 aluminum wire through test verification and finished product batch test, achieves good effect and great breakthrough, and can be widely applied. The whole process is efficient, and coil 1 is high with inserted sheet terminal 2's joint strength, easy operation during the use, and production efficiency is high, and the defective rate is low.

Example 2

On the basis of embodiment 1, the top of the terminal body is provided with a plug hole which is matched with the terminal sheath for use.

Preferably, the leads of the coil 1 are led out from both sides of the terminal block portion, and are directly soldered after being engaged with the claws from the bottom of the claw portion 23.

Preferably, the terminal body is inserted into the insertion seam 32 from bottom to top, and the bending portion 21 is in an inwardly folded state.

Preferably, the limiting portion 22 at the bottom of the terminal body abuts against the lower portion of the inserting seam 32, and the bending portion 21 is in a state of being unfolded outwards along the limiting transverse groove 31.

Preferably, when the bending part 21 is folded inwards, the side wings at two sides of the bending part are parallel to each other and form an included angle of 90 degrees with the plane where the terminal body is positioned; when the bending part 21 is unfolded outwards, the side wings at the two sides are arranged at an obtuse angle.

Preferably, the jaw section of the jaw portion 23 is provided in a U shape, and the U-shaped opening of the jaw is provided downward.

Preferably, the distance between the clamping jaws is the same as the distance between the two leads of the coil 1, and the height of the clamping jaws is consistent with the height of the leads.

As shown in fig. 4, the base portion is in a convex table shape, the bottom periphery thereof is provided with mounting holes 33, and the inner edge of the bottom thereof is provided with a plurality of reinforcing ribs. The structure has compact overall structure, and the space occupancy rate of the structural product is smaller, and meanwhile, the problem that the aluminum wire is connected with the electronic wire harness is solved.

Preferably, the mounting holes 33 are used in conjunction with an external mounting plate.

Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. Novel PFC inductance structure, its characterized in that, including integrated into one piece's terminal platform base (3), terminal platform base (3) are L type setting, including the terminal platform part that links to each other with inserted sheet terminal (2) to and the base part that links to each other with coil (1), wherein:

the inserting terminal (2) is arranged in an L shape and comprises a terminal body, a bending part (21) arranged at the upper part of the terminal body, a limiting part (22) arranged at the middle part of the terminal body and a claw part (23) arranged at the bottom of the terminal body; the bending part (21) comprises side wings with two sides bent inwards, and the bending part (21) is used for limiting the downward movement of the inserting piece terminal (2); the width of the limiting part (22) is larger than that of the terminal body, and the limiting part (22) is used for limiting the upward movement of the inserting sheet terminal (2); the clamping claw part (23) is perpendicular to the terminal body, and the clamping claw part (23) is provided with a clamping claw connected with the coil (1);

the terminal block part is in T-shaped arrangement and comprises a supporting part connected with the base part and plug-in parts (35) positioned on two sides of the top of the supporting part; the plug-in parts (35) on two sides are respectively connected with the corresponding plug-in sheet terminals (2); the middle part of the inserting part (35) is provided with a limit transverse groove (31) matched with the bending part (21), and the limit transverse groove (31) is used for receiving the bending part (21) expanding to two sides; the bottom of the plug-in part (35) is provided with a plug-in joint (32) matched with the terminal body, and the width of the plug-in joint (32) is smaller than that of the limit part (22);

the coil (1) is fixed on the arc surface (34) of the base part through the fixing glue (4).

2. The novel PFC inductor structure of claim 1 wherein the top of the terminal body is provided with a socket for use with a terminal sheath.

3. The novel PFC inductor structure according to claim 1, wherein the leads of the coil (1) are led out from both sides of the terminal block portion and are directly soldered after being engaged with the claws from the bottom of the claw portion (23).

4. The novel PFC inductor structure of claim 1, wherein the terminal body is inserted into the insertion seam (32) from bottom to top, and the bent portion (21) is in an inwardly folded state.

5. The PFC inductor structure of claim 4, wherein the limiting portion (22) at the bottom of the terminal body abuts against the lower portion of the insertion seam (32), and the bending portion (21) is in an outwardly-unfolded state along the limiting transverse slot (31).

6. The novel PFC inductor structure of claim 5, wherein when the bent portion (21) is folded inwards, side wings on both sides of the bent portion are parallel to each other and form an included angle of 90 ° with a plane on which the terminal body is located; when the bending part (21) is unfolded outwards, the side wings at the two sides of the bending part are arranged at an obtuse angle.

7. The novel PFC inductor structure of claim 1, wherein the claw sections of the claw sections (23) are provided in a U-shape, and the U-shaped openings of the claws are provided downward.

8. The novel PFC inductor structure of claim 7, wherein a distance between the jaws is the same as a distance between two leads of the coil (1), and a height of the jaws is identical to a height of the leads.

9. The novel PFC inductor structure of claim 1, wherein the base portion is in the shape of an upwardly convex table, a mounting hole (33) is provided at a bottom periphery thereof, and a plurality of reinforcing ribs are provided at an inner edge of the bottom thereof.

10. The novel PFC inductor structure of claim 9, wherein the mounting holes (33) are used in conjunction with an external mounting plate.