Laminated skeleton transformer with compact structure

Abstract

The utility model provides a laminated skeleton transformer with a compact structure, which comprises a winding skeleton and a magnetic core assembly, the winding skeleton is formed by laminating a plurality of sub-skeletons, the laminated skeleton transformer also comprises an insulating shell, the insulating shell is buckled on one side of the winding skeleton, and the insulating shell is of an L-shaped plate structure formed by a front plate and a bottom plate; a plurality of pins used for welding fly wires of the transformer are arranged on the outer side of the front plate at intervals, a strip-shaped groove used for buckling the winding framework is formed in the inner side of the front plate, and a plurality of limiting blocks used for limiting displacement of the sub-framework in the horizontal direction are arranged in the strip-shaped groove at intervals. According to the insulating shell, the fly wire of the transformer can be hung and welded, the safety distance is increased, the strip-shaped groove and the limiting block arranged in the strip-shaped groove are arranged on the face, facing the transformer sub-framework, of the insulating shell, and therefore the sub-framework can be limited in the vertical direction and the horizontal direction; the structure of the transformer with the overlapped frameworks is more compact and stable, and the sub-frameworks are prevented from moving.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field more specifically, it is a compact structure's superposed skeleton transformer. BACKGROUND

[0002] At present, the transformer skeleton with copper sheet installation groove is mostly integrated structure, the installation groove for installing copper sheet is not adjustable, so that the copper sheet of different thickness cannot be flexibly configured during assembly, or more copper sheets are installed, and the installation process is relatively cumbersome when the copper sheet is installed. In addition, when the transformer is installed on the circuit board, the flying wire needs to be welded, and the flying wire is scattered, which makes the circuit board scattered and unsightly.

[0003] Therefore, the applicant provides a Chinese utility model patent with the authorization announcement number CN220796440U, a transformer with a superposed skeleton structure. The winding skeleton of the patent is composed of several sub-skeletons, and the installation groove for installing copper sheets has a fixed width. It can not only flexibly select the thickness and number of copper sheets, but also select the number of superposed sub-skeletons according to requirements. In addition, in order to improve the neatness of the circuit board, an insulating shell is provided, which is buckled on one side of the winding skeleton. The insulating shell is an L-shaped half box body composed of a front plate, a side plate and a bottom plate. The outer side of the front plate is provided with a plurality of second pins for welding flying wires.

[0004] Although the insulating shell of the above product can be used to simplify the circuit board and avoid flying wires, based on user feedback and market research after the applicant actually puts it on the market, the applicant finds that the insulating shell can limit the up and down direction of the horizontal line of the sub-skeleton, but it cannot effectively limit the direction of the multiple sub-skeletons in the left and right horizontal lines. Although the product is also provided with a fixing plate for fixing the pins of the copper sheet, this can only achieve single-sided limiting of the transformer, and in the actual production process and board assembly, the side of the sub-skeleton of the transformer with the insulating shell is still prone to run out of position in the left and right horizontal lines, which negatively affects the compactness and stability of the product. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides a compact structure laminated skeleton transformer, including winding skeleton and the magnetic core assembly of assembling in winding skeleton both ends, winding skeleton is by a plurality of sub skeleton laminated composition, two end of sub skeleton is equipped with two baffle, and the winding groove for winding coil winding is formed between two baffles, and the mounting groove for installing copper sheet is equipped on the outside of each baffle, still include an insulating shell, the insulating shell is buckled to one side of winding skeleton, the insulating shell is by the L type board structure of front plate and bottom plate, the outside of front plate is arranged with a plurality of needle feet for welding transformer flying wire at intervals, and the strip groove for buckling winding skeleton is equipped on the inside of front plate, and a plurality of limiting blocks for limiting the horizontal direction displacement of sub skeleton is arranged in the strip groove at intervals.

[0007] Further, the cross section of the front plate is in a concave shape structure, the concave surface of the concave shape structure is the inner side of the front plate, and the recess of the concave shape structure is the strip groove.

[0008] Further, the two baffles of the sub skeleton are provided with a clamping block portion extending into the strip groove on the side facing the insulating shell, and the side surface of the clamping block portion is in abutment with the limiting block.

[0009] Further, a fixing plate is further included, and the fixing plate is provided with a positioning hole matched with the pin of the copper sheet.

[0010] Further, the fixing plate is a PCB plate of a preset conductive circuit, and one side of the fixing plate is further provided with a pin for connecting with a main circuit board.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model utilizes the insulating shell with needle feet to assemble the transformer of the laminated skeleton, which can hang and weld the transformer flying wire, improve the safety distance, and set the strip groove on the side of the insulating shell facing the sub skeleton of the transformer and the limiting block in the strip groove, so that the sub skeleton can be limited in the vertical direction and the horizontal direction, the structure of the transformer of the laminated skeleton is more compact and stable, and the sub skeleton is prevented from running. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the utility model with the insulating shell removed.

[0015] Figure 3 It is an exploded view of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the winding skeleton of the utility model.

[0017] Figure 5 It is the insulating shell structure schematic view of the utility model.

[0018] In the drawing, the reference numerals are: winding framework 10, sub-framework 11, baffle 111, mounting groove 112, winding groove 113, clamping block part 114, copper sheet 20, magnetic core assembly 30, insulating shell 40, front plate 41, bottom plate 42, pin 43, strip-shaped groove 44, limiting block 45, fixing plate 50, positioning hole 51, pin 52. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required by the embodiments or prior art are briefly introduced below. In order to facilitate description, the size of each part released in the drawings is not drawn according to the actual proportional relationship.

[0020] The specific implementation of the utility model is described below with reference to the drawings.

[0021] Referring to Figures 1 to 4 A compact laminated skeleton transformer, comprising winding framework 10, copper sheet 20, coil winding, and magnetic core assembly 30 assembled at both ends of winding framework 10. Winding framework 10 is composed of a plurality of sub-frameworks 11, both ends of sub-framework 11 are provided with two baffles 111, and winding groove 113 for winding coil winding is formed between the two baffles 111. The outer side of each baffle 111 is provided with mounting groove 112 for mounting copper sheet 20.

[0022] Referring to Figure 3 And Figure 4 In the embodiment, winding framework 10 is preferably composed of two sub-frameworks 11, magnetic core assembly 30 is two mutually symmetrical magnetic cores, and the two magnetic cores are symmetrically buckled at both ends of winding framework 10. Copper sheet 20 is preferably a ring-shaped copper sheet 20, and copper sheet 20 is provided with two pins.

[0023] Referring to Figure 2 , Figure 3 And Figure 5 The transformer further comprises an insulating shell 40, the insulating shell 40 is buckled on one side of the winding framework 10, the insulating shell 40 is composed of a L-shaped plate structure of front plate 41 and bottom plate 42, and a plurality of pins 43 for welding transformer flying wires are arranged on the outer side of front plate 41, in the embodiment, the flying wires are the flying wires of the coil winding. The inner side of front plate 41 is provided with strip-shaped groove 44 for buckling winding framework 10, and a plurality of limiting blocks 45 for limiting horizontal displacement of sub-framework 11 are arranged in strip-shaped groove 44.

[0024] Referring to Figure 5More specifically, the cross section of the front plate 41 is in a concave shape structure, the concave surface of the concave shape structure is the inner side surface of the front plate 41, and the concave part of the concave shape structure is the strip-shaped groove 44. The two baffle plates 111 of the sub-skeleton 11 are each provided with a clamping block part 114 for extending into the strip-shaped groove 44, and the side surface of the clamping block part 114 is in abutment with the limiting block 45.

[0025] With reference to Figure 3 and Figure 5 In the embodiment, the sub-skeleton 11 is preferably two, so the limiting block 45 is preferably three, and the number of the limiting block 45 of the utility model is one more than that of the sub-skeleton 11. The distance between the two adjacent limiting blocks 45 is usually slightly greater than the distance between the two baffle plates 111 of the sub-skeleton 11 plus the thickness of the copper sheet 20. The three limiting blocks 45 are arranged in a linear type, the middle limiting block 45 is located between the two sub-skeletons 11, and the outermost two limiting blocks 45 are respectively located on the outer side surface of the outermost baffle plate 111 of the two sub-skeletons 11, so as to limit the two sub-skeletons 11 in the horizontal direction through the three limiting blocks 45.

[0026] With reference to Figure 3 The transformer further comprises a fixing plate 50 provided with a positioning hole 51 matched with the pin of the copper sheet 20. The fixing plate 50 of the utility model is a PCB plate of a pre-set conductive circuit, and one side of the fixing plate 50 is further provided with a pin 42 for connecting with the main circuit board. The positioning hole 51 and the pin 42 are both arranged on the conductive circuit of the PCB plate.

[0027] Compared with the same transformer (authorized announcement number CN220796440U) of the prior art, the insulating shell 40 of the utility model is removed from the side plate and changed from an L-shaped half box body to an L-shaped plate structure, which releases the single-sided limitation of the L-shaped half box body insulating shell 40 on the transformer. The L-shaped plate structure does not make any limitation on the outermost two sides of the transformer, so when the sub-skeleton 11 is limited by the limiting block 45, it will not affect the selection of the thickness of the copper sheet 20 on the outermost two sides of the transformer. At the same time, through the strip-shaped groove 44 and the limiting block 45 arranged in the strip-shaped groove 44, the sub-skeleton 11 can be limited in the vertical and horizontal directions, so that the transformer structure of the superposed skeleton is more compact and stable, and the sub-skeleton 11 is prevented from running out of position.

[0028] The above is only a specific implementation manner of the utility model, but the design concept of the utility model is not limited thereto, and any non-essential change to the utility model by using this concept shall belong to the act of infringing the protection scope of the utility model.

Claims

1. A compact laminated core transformer, comprising a winding core and a magnetic core assembly assembled at both ends of the winding core, wherein the winding core is composed of a plurality of sub-cores, both ends of each sub-core are provided with two baffle plates, a winding slot for winding coil winding is formed between the two baffle plates, an installation slot for mounting a copper sheet is arranged on the outer side of each baffle plate, and an insulating shell is arranged on one side of the winding core, characterized in that: The insulating shell is composed of a front plate and a bottom plate in an L-shaped plate structure, the outer side of the front plate is provided with a plurality of pins for welding transformer flying leads, and the inner side of the front plate is provided with a strip-shaped slot for buckling the winding framework, and a plurality of limiting blocks for limiting horizontal displacement of the sub-framework are arranged in the strip-shaped slot.

2. A compact folded core transformer according to claim 1, characterized in that: The cross section of the front plate is in a concave letter shape structure, the concave surface of the concave letter shape structure is the inner side of the front plate, and the concave part of the concave letter shape structure is the strip-shaped slot.

3. A compact integrated core transformer according to claim 2, characterized in that: The two baffle plates of the sub-framework are provided with clamping block parts for extending into the strip-shaped slot on one side of the insulating shell, and the side surface of the clamping block part is limited by the limiting block.

4. A compact integrated core transformer according to claim 1, characterized in that: A fixing plate is further included, and the fixing plate is provided with a positioning hole matched with the pin of the copper sheet.

5. A compact integrated core transformer according to claim 4, characterized in that: The fixing plate is a PCB plate of a preset conductive circuit, and one side of the fixing plate is further provided with a pin for connecting with a main circuit board.

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