Novel transformer with framework limiting function

Abstract

The utility model discloses a novel transformer with a limited framework, which relates to the technical field of transformers and comprises a framework, the framework comprises a cylinder and expansion plates at two ends of the cylinder, and the cylinder is provided with a through hole; the winding is wound on the pin piece on the column body, the pin piece is connected to the expansion plate, and the winding is connected with the pin piece; the number of the magnetic core pieces is two, the two magnetic core pieces are arranged on the two expanding plates respectively, each magnetic core piece comprises a top plate located on the expanding plates, outer plates connected to the two sides of the top plate and located on the outer sides of the framework and the winding and a middle column corresponding to the position of the through hole on the top plate, and positioning notches are formed in the two ends of the top plate; the positioning blocks are distributed at the two ends of the opposite sides of the two expanding plates respectively, and the positioning blocks are matched with the positioning notches in shape; wherein the first insulating tape is wound outside the two magnetic core pieces, so that the magnetic core pieces and the framework can be quickly positioned and fixed, the assembling time consumption is reduced, and the situation that the positions of the two magnetic core pieces are not accurate in the assembling and fixing process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a new type of transformer with skeleton limit. Background Art

[0002] A transformer is a static electrical device used to transfer electrical energy. It changes the magnitude of the AC voltage through the principle of electromagnetic induction. Transformers can convert alternating current of one voltage level into alternating current of another voltage level while keeping the frequency unchanged. They are extremely important in the power system and are widely used in power plants, power transmission and distribution networks, and various industrial and civil facilities.

[0003] The basic structure of a transformer includes two or more windings, a magnetic core, and a transformer skeleton around which the windings are wound. For example, the Chinese patent with the publication number CN208368326U discloses a high-frequency transformer, which includes a skeleton, a magnetic core, a wire-wound winding, and an insulating base plate; wherein, the skeleton includes: a main body part and a pin part arranged at the bottom of the main body part; the main body part includes a column body and an assembly hole, and the assembly hole is arranged in the column body; the magnetic core is embedded at both ends of the assembly hole; the wire-wound winding includes a primary winding and a first secondary winding wound around the outer peripheral surface of the column body from the inside to the outside;

[0004] In the above patent, the transformer has two magnetic cores, which are respectively embedded into the transformer skeleton from both ends correspondingly. However, in the prior art, in order to prevent the assembled magnetic cores from shaking on the skeleton, resulting in situations such as the upper and lower magnetic cores not being aligned or misaligned, hot melt adhesive or epoxy resin is usually used to bond between the magnetic cores and the skeleton. Although this method can fix the magnetic cores to the skeleton, when the operator applies glue, on the one hand, it is necessary to always control the accurate positions of the two magnetic cores, and on the other hand, it is also necessary to control the amount of glue used to prevent excessive glue from causing material waste, resulting in a relatively long working time and low efficiency in this process.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Summary of the Utility Model

[0006] The utility model aims to provide a technical solution that can solve the problems of difficult positioning, easy misalignment, low assembly efficiency, and long time consumption during the installation process of the magnetic core parts in order to overcome the above situations.

[0007] To achieve the above object, the utility model provides the following technical solution: a new type of transformer with skeleton limit, including

[0008] a skeleton, the skeleton includes a column body and expansion plates at both ends of the column body, and the column body is provided with a through hole;

[0009] A winding, which is wound around a cylinder;

[0010] Pin components, which are connected to an extended board, and the winding is connected to the pin components;

[0011] Core components, there are two core components, and the two core components are respectively arranged on two extended boards. The core components include a top plate located on the extended board, outer plates connected to both sides of the top plate and located outside the skeleton and the winding, and a middle column on the top plate corresponding to the position of a through hole. Positioning notches are formed at both ends of the top plate;

[0012] Positioning blocks, which are respectively distributed at both ends on the opposite sides of the two extended boards, and the shape of the positioning blocks matches the positioning notches;

[0013] Among them, a first insulating tape is wound outside the two core components.

[0014] As a further scheme of the present utility model: first limiting grooves and second limiting grooves are respectively formed on the opposite side surfaces of the two positioning blocks, and first limiting blocks and second limiting blocks corresponding to the first limiting grooves and the second limiting grooves are further arranged on both sides of the top plate;

[0015] Among them, the width between the opposite side surfaces of the first limiting groove and the second limiting groove is greater than the width between the opposite side surfaces of the two positioning blocks, and when the first limiting block is completely inserted into the first limiting groove, the width between the side surface of the top plate facing the first limiting block and the side surface of the second limiting block facing the second limiting groove is equal to or less than the width between the opposite side surfaces of the two positioning blocks.

[0016] As a further scheme of the present utility model: both of the two positioning blocks are made of silicone rubber material;

[0017] Among them, the width between the opposite side surfaces of the first limiting block and the second limiting block is equal to or greater than the width between the inner walls of the first limiting groove and the second limiting groove.

[0018] As a further scheme of the present utility model: at least one layer of second insulating tape is wound outside the winding.

[0019] As a further scheme of the present utility model: an L-shaped pin is provided on the pin component, the winding is connected with a lead wire, and the lead wire is welded to the horizontal end of the L-shaped pin.

[0020] As a further scheme of the present utility model: the skeleton is made of insulating plastic.

[0021] Compared with the prior art, the beneficial effects of the present technical solution are as follows: In the assembly process of the present utility model, two positioning blocks and positioning notches on the magnetic core parts can be used to realize the positioning placement of the two magnetic core parts. Then, the two magnetic core parts are wound and fixed with the first insulating tape. By using the first limiting grooves and the second limiting grooves on the two positioning blocks, as well as the first limiting blocks and the second limiting blocks on both sides of the top plate of the magnetic core part, the fixing strength of the two magnetic core parts can be improved, preventing the two magnetic core parts from shifting when the viscosity of the first insulating tape decreases or the tape is damaged. This can prevent the situation where the two magnetic core parts are not aligned, misaligned, or have inaccurate positions during the assembly process. At the same time, after assembly, the magnetic core parts are stable and do not shake, improving the assembly efficiency and reducing the assembly time consumption.

[0022] 1. When assembling the magnetic core parts, two magnetic core parts are positioned and placed by using the positioning notches on both sides of the top plate and the positioning blocks at both ends of the expansion plate. Then, the two magnetic core parts are wound with the first insulating tape, thereby fixing the two magnetic core parts on the skeleton, improving the assembly efficiency, reducing the assembly time consumption, and preventing the situation where the two magnetic core parts are not aligned, misaligned, or have inaccurate positions during the assembly and fixing process.

[0023] 2. When assembling the two magnetic core parts of the present utility model, control the first limiting block on one side of the magnetic core part to insert into the first limiting groove. After the first limiting block is completely inserted into the first limiting groove, control the second limiting block on the other side to insert into the second limiting groove. And during the process of controlling the second limiting block to insert into the second limiting groove, control the insertion distance so that the first limiting block and the second limiting block are respectively located in the first limiting groove and the second limiting groove, thereby fixing the magnetic core part between the two positioning blocks, which can improve the fixing strength of the two magnetic core parts and prevent the two magnetic core parts from shifting when the viscosity of the first insulating tape decreases or the tape is damaged.

[0024] 3. During the process of inserting the first limiting block into the first limiting groove, due to the material characteristics of silicone rubber, the first limiting block can squeeze the positioning block towards the inside of the first limiting groove until the first limiting block is completely inserted into the first limiting groove. Then, align the second limiting block with the second limiting groove and insert it. At this time, the material in the first limiting groove begins to return to its original state, making the first limiting block and the second limiting block closely fit with the inside of the first limiting groove and the second limiting groove, so that the magnetic core part cannot shake left and right. When it is necessary to disassemble the magnetic core part, push the magnetic core part to one side to make the first limiting block squeeze the first limiting groove, so that the second limiting block on the other side can be disengaged from the second limiting groove, thereby completing the disassembly of the magnetic core part. This is simple and fast, and at the same time, it can prevent the first limiting block and the second limiting block from automatically disengaging from the first limiting groove and the second limiting groove, and thus prevent the magnetic core part from accidentally falling off.

[0025] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is a schematic diagram of the decomposed structure of the skeleton and the magnetic core of the utility model;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the positioning block and the top plate of the utility model from a top view;

[0030] The corresponding reference numerals in the accompanying drawings are described as follows:

[0031] 1. Skeleton; 2. Winding; 3. Pin parts; 4. Magnetic core parts; 5. Positioning block; 6. First insulating tape; 7. Second insulating tape;

[0032] 101, column; 102, expansion plate; 103, through hole;

[0033] 201, lead wire;

[0034] 301, L-shaped pin;

[0035] 401, top plate; 402, outer plate; 403, middle column; 404, positioning notch; 405, first limiting block; 406, second limiting block;

[0036] 501, first limiting groove; 502, second limiting groove. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] See also Figures 1 - 3 A novel transformer with skeleton limit includes a skeleton 1, wherein the skeleton 1 includes a column 101 and expansion plates 102 at both ends of the column 101, the two expansion plates 102 and the column 101 form an "I"-shaped structure, and the column 101 is provided with a through hole 103;

[0039] The skeleton 1 is made of insulating plastic;

[0040] The winding 2 is wound around the cylinder 101

[0041] The pin component 3 is connected to the extension board 102, and the winding 2 is connected to the pin component 3;

[0042] The magnetic core components 4 are two. The two magnetic core components 4 are respectively arranged on two extension boards 102. The magnetic core component 4 includes a top plate 401 located on the extension board 102, outer plates 402 connected to both sides of the top plate 401 and located outside the skeleton 1 and the winding 2, and a middle column 403 on the top plate 401 corresponding to the position of the through hole 103. The magnetic core component 4 can be made of silicon steel sheets, ferrite materials, etc., which are not limited here.

[0043] Positioning notches 404 are formed at both ends of the top plate 401;

[0044] The positioning blocks 5 are respectively distributed at both ends of the opposite sides of the two extension boards 102, and the shape of the positioning block 5 matches that of the positioning notch 404;

[0045] Among them, the two magnetic core components 4 are wound with a first insulating tape 6.

[0046] Specifically, when assembling the present utility model, the two magnetic core components 4 are respectively embedded into the two ends of the skeleton 1 wound with the winding 2, the middle columns 403 are correspondingly inserted into the through holes 103, and the outer plates 402 on both sides of the top plate 401 are wrapped outside the extension board 102 and cover the winding 2. During the assembly process, by using the positioning notches 404 on both sides of the top plate 401 and the positioning blocks 5 at both ends of the extension board 102, the two magnetic core components 4 can be positioned and placed, so that the positions of the two magnetic core components 4 are accurate. Then, the first insulating tape 6 is used to wind the two magnetic core components 4, thereby fixing the two magnetic core components 4 on the skeleton 1, improving the assembly efficiency, reducing the assembly time, and through the positioning notches 404, the positioning blocks 5 and the first insulating tape 6, it can be avoided that the two magnetic core components 4 are not aligned, misaligned and have inaccurate positions during the assembly and fixing process.

[0047] Preferably, first limiting grooves 501 and second limiting grooves 502 are respectively formed on the opposite side surfaces of the two positioning blocks 5, and first limiting blocks 405 and second limiting blocks 406 corresponding to the first limiting grooves 501 and the second limiting grooves 502 are also provided on both sides of the top plate 401;

[0048] Wherein, the width between the opposite side surfaces of the first limiting groove 501 and the second limiting groove 502 is greater than the width between the opposite side surfaces of the two positioning blocks 5, and when the first limiting block 405 is completely inserted into the first limiting groove 501, the width between the side surface of the top plate 401 facing the first limiting block 405 and the side surface of the second limiting block 406 facing the second limiting groove 502 is equal to or less than the width between the opposite side surfaces of the two positioning blocks 5.

[0049] Specifically, when assembling the two magnetic core components 4 of the present utility model, control the first limiting block 405 on one side of the magnetic core component 4 to be inserted into the first limiting groove 501, and after the first limiting block 405 is completely inserted into the first limiting groove 501, control the second limiting block 406 on the other side to be inserted into the second limiting groove 502. And during the process of controlling the second limiting block 406 to be inserted into the second limiting groove 502, control the insertion distance so that the first limiting block 405 and the second limiting block 406 are respectively located in the first limiting groove 501 and the second limiting groove 502, thereby fixing the magnetic core component 4 between the two positioning blocks 5. And another magnetic core component 4 is fixed on the other side by the same operation. Then use the first insulating tape 6 to wind the two magnetic core components 4, which can improve the fixing strength of the two magnetic core components 4 and prevent the two magnetic core components 4 from shifting when the viscosity of the first insulating tape 6 decreases or is damaged.

[0050] Preferably, both of the two positioning blocks 5 are made of silicone rubber material;

[0051] Wherein, the width between the opposite side surfaces of the first limiting block 405 and the second limiting block 406 is equal to or greater than the width between the inner walls of the first limiting groove 501 and the second limiting groove 502.

[0052] Specifically, during the process of inserting the first limiting block 405 into the first limiting groove 501, due to the material characteristics of silicone rubber, the first limiting block 405 can squeeze the positioning block 5 towards the inside of the first limiting groove 501. Until the first limiting block 405 is completely inserted into the first limiting groove 501, then align the second limiting block 406 with the second limiting groove 502 and insert it. At this time, the material in the first limiting groove 501 begins to return to its original state, making the first limiting block 405 and the second limiting block 406 closely fit with the inside of the first limiting groove 501 and the second limiting groove 502, so that the magnetic core component 4 cannot shake left and right. And when it is necessary to disassemble the magnetic core component 4, push the magnetic core component 4 to one side to make the first limiting block 405 squeeze the first limiting groove 501, so that the second limiting block 406 on the other side can be disengaged from the second limiting groove 502, and then the disassembly of the magnetic core component 4 is completed. It is simple and fast, and at the same time can prevent the first limiting block 405 and the second limiting block 406 from disengaging from the first limiting groove 501 and the second limiting groove 502 by themselves, and further prevent the magnetic core component 4 from accidentally falling off.

[0053] Among them, in the present utility model, there is no distinction in the positions of the first limiting groove 501 and the second limiting groove 502, that is, in the embodiments of the present utility model, the description of the first limiting groove 501 can equally be the description of the second limiting groove 502, and vice versa for the description of the second limiting groove 502;

[0054] Furthermore, in the present utility model, the relationship between the first limiting block 405 and the second limiting block 406 is similar to that between the first limiting groove 501 and the second limiting groove 502, and there is no distinction in position, specifically as Figure 3 shown.

[0055] Preferably, at least one layer of second insulating tape 7 is wound outside the winding 2, and the second insulating tape 7 is used to provide an insulating layer for the winding 2.

[0056] Preferably, an L-shaped pin 301 is provided on the pin component 3, the winding 2 is connected with a lead wire 201, and the lead wire 201 is welded to the horizontal end of the L-shaped pin 301.

[0057] Specifically, the L-shaped pin 301 has a horizontal end parallel to the PCB board and a vertical end perpendicular to the PCB board during assembly. The lead wire 201 is welded and fixed to the horizontal end, and the vertical end is used for electrical connection with a preset position on the PCB board, which is more convenient for the circuit connection and disassembly of the transformer.

[0058] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A novel transformer with skeleton limit, characterized in that, including a skeleton (1), the skeleton (1) including a column body (101) and expanding plates (102) at both ends of the column body (101), and a through hole (103) being formed in the column body (101); a winding (2), the winding (2) being wound around the column body (101); pin components (3), the pin components (3) being connected to the expanding plates (102), and the winding (2) being connected to the pin components (3); magnetic core components (4), there being two magnetic core components (4), the two magnetic core components (4) being respectively arranged on two expanding plates (102), the magnetic core components (4) including a top plate (401) located on the expanding plate (102), outer plates (402) connected to both sides of the top plate (401) and located outside the skeleton (1) and the winding (2), and a middle column (403) corresponding to the position of the through hole (103) on the top plate (401), and positioning notches (404) being formed at both ends of the top plate (401); positioning blocks (5), the positioning blocks (5) being respectively distributed at both ends of opposite sides of the two expanding plates (102), and the shape of the positioning blocks (5) being matched with that of the positioning notches (404); wherein, a first insulating adhesive tape (6) is wound outside the two magnetic core components (4).

2. The novel transformer with skeleton limit according to claim 1, characterized in that, First limiting grooves (501) and second limiting grooves (502) are respectively formed on opposite side surfaces of the two positioning blocks (5), and first limiting blocks (405) and second limiting blocks (406) corresponding to the first limiting grooves (501) and the second limiting grooves (502) are further arranged on both sides of the top plate (401); wherein, the width between opposite side surfaces of the first limiting grooves (501) and the second limiting grooves (502) is greater than the width between opposite side surfaces of the two positioning blocks (5), and when the first limiting blocks (405) are completely inserted into the first limiting grooves (501), the width between the side surface of the top plate (401) facing the first limiting blocks (405) and the side surface of the second limiting blocks (406) facing the second limiting grooves (502) is equal to or less than the width between opposite side surfaces of the two positioning blocks (5).

3. The novel transformer with skeleton limit according to claim 2, characterized in that, Both of the two positioning blocks (5) are made of silicone rubber material; wherein, the width between opposite side surfaces of the first limiting blocks (405) and the second limiting blocks (406) is equal to or greater than the width between inner walls of the first limiting grooves (501) and the second limiting grooves (502).

4. The novel transformer with skeleton limit according to claim 1, characterized in that, At least one layer of a second insulating adhesive tape (7) is wound outside the winding (2).

5. The novel transformer with skeleton limit according to claim 1, characterized in that, L-shaped pins (301) are arranged on the pin components (3), the winding (2) is connected with lead-out wires (201), and the lead-out wires (201) are welded to the transverse ends of the L-shaped pins (301).

6. The novel transformer with skeleton limit according to claim 1, characterized in that, The skeleton (1) is made of insulating plastic.

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