A frame for high-frequency transformers

Abstract

This utility model provides a frame for a high-frequency transformer, relating to the field of electrical component technology. It includes: a frame support; a winding post on top of the frame support; a limiting end plate on the top of the winding post; two support partitions fixedly connected to the bottom of the frame support; winding groove plates on the front and rear edges of the frame support; a limiting baffle plate installed in front of the winding groove plate by screws; an anti-loosening pressure plate below the winding groove plate; and an insulating pressure block fixedly connected above the anti-loosening pressure plate. This ensures that the wires, leads, and winding groove plates are tightly fitted, improving the strength of the wire winding and enhancing the vibration resistance of the high-frequency transformer. This makes it more suitable for electrical equipment operating in environments with frequent vibrations, solving the problem that electrical equipment operating in environments with frequent shaking is prone to loosening due to vibration, leading to transformer failure and making it unsuitable for special working environments such as those with frequent vibrations.

Description

Technical Field

[0001] This utility model relates to the field of electrical component technology, and in particular to a frame for a high-frequency transformer. Background Technology

[0002] The high-frequency transformer bobbin is a core component that supports the coil, fixes the magnetic core, and ensures electrical insulation. Its core functions include providing winding space for the windings and isolating short-circuit risks. At the same time, it achieves fixation to the PCB and guides the winding path through structural designs such as pin layout and retaining walls.

[0003] When winding existing high-frequency transformers, the wires need to be wound around the transformer pins simultaneously to make the wires electrically connected to the transformer pins. However, the existing high-frequency transformer frame lacks an auxiliary locking structure for the wires. For electrical equipment that operates in a frequently vibrating environment, the wires are prone to loosening due to the vibration of the electrical equipment, which can cause high-frequency transformer failure. Therefore, it is not suitable for electrical equipment in special working environments such as frequent vibration. Utility Model Content

[0004] This utility model provides a frame for a high-frequency transformer to solve the problem that existing high-frequency transformers require the wires to be wound around the transformer pins simultaneously to electrically connect the wires to the transformer pins. However, existing high-frequency transformer frames lack an auxiliary locking structure for the wires. For electrical equipment operating in environments with frequent vibrations, the wires are prone to loosening due to the vibrations of the electrical equipment, which can lead to high-frequency transformer failures. Therefore, they are not suitable for electrical equipment operating in special environments with frequent vibrations.

[0005] This utility model provides a frame for a high-frequency transformer, specifically including: a frame support, a winding post above the frame support, a limiting end plate at the top of the winding post, two support partitions fixedly connected to the bottom of the frame support, winding groove plates at the front and rear edges of the frame support, a limiting baffle plate installed in front of the winding groove plate by screws, an anti-loosening pressure plate below the winding groove plate, an insulating pressure block fixedly connected above the anti-loosening pressure plate, an outer locking frame fixedly connected to the outer edge above the anti-loosening pressure plate, two locking frame inserts fixedly connected above the outer locking frame, wedge-shaped protrusions at the top of the locking frame inserts, and the locking frame inserts being inserted between the winding groove plate and the limiting baffle plate.

[0006] Furthermore, two partition guide rods are fixedly connected to the side of the support partition away from the center of the frame support, and two pressure plate grooves are opened on the edge of the anti-loosening pressure plate, which are slidably connected to the partition guide rods.

[0007] Furthermore, the outer edge of the winding groove plate is provided with a wire-passing groove, the front edge of both sides of the wire-passing groove of the winding groove plate is provided with a baffle insertion port, and the front of the winding groove plate is provided with a threaded hole.

[0008] Furthermore, the limiting baffle has outer flanges formed by bending the two edges, and the outer flanges are inserted into the baffle socket. The limiting baffle has through holes at the front and back, and the through holes are connected to the threaded holes by screws.

[0009] Furthermore, the inner surface of the limiting baffle is provided with an inner protruding plate in the middle, and a wedge-shaped limiting wedge head is provided at the lower ends of both sides of the inner protruding plate.

[0010] Furthermore, the locking post is inserted into the gap between the inner convex plate and the outer flange, the inner edge of the locking post is tightly fitted with the limiting wedge head, and the wedge-shaped protrusion of the locking post is tightly fitted with the side of the inner convex plate.

[0011] This utility model provides a frame for a high-frequency transformer, which has the following advantages:

[0012] The high-frequency transformer of this invention has a detachable anti-loosening pressure plate at the bottom. During the winding process of the transformer skeleton, the anti-loosening pressure plate is disassembled and separated from the winding slot plate. After the winding is completed, the anti-loosening pressure plate is reassembled under the winding slot plate, so that the insulating pressure block is tightly attached to the lower surface of the winding slot plate and the wire wound in the metal pin is pressed tightly, so that the wire, pin and winding slot plate are tightly attached, improving the firmness of the wire winding and improving the vibration resistance of the high-frequency transformer, making it more suitable for electrical equipment working in environments with frequent vibration.

[0013] In addition, the anti-loosening pressure plate at the bottom of the high-frequency transformer in this utility model is quick to install. It can be quickly positioned by inserting the locking bracket plug and the limiting baffle. The assembly is quick and the installation is firm and reliable. Moreover, there is a gap between the anti-loosening pressure plate and the winding slot plate to ensure efficient heat dissipation of the transformer. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0018] Figure 2 This shows a schematic diagram of the structure in the packaged state of this application;

[0019] Figure 3 A structural schematic diagram of the bottom of this application is shown;

[0020] Figure 4This diagram shows the structure of the anti-loosening pressure plate and the winding groove plate when they are separated.

[0021] Figure 5 A schematic diagram of the anti-loosening pressure plate of this application is shown;

[0022] Figure 6 A schematic diagram of the insulating pressure block of this application is shown;

[0023] Figure 7 This application shows Figure 4 A magnified structural diagram of point A in the middle;

[0024] Figure 8 This application shows Figure 5 A magnified structural diagram of a portion of point B in the middle.

[0025] Figure label:

[0026] 1. Skeleton support; 2. Winding post; 3. Limiting end plate; 4. Support partition; 401. Partition guide rod; 5. Winding groove plate; 501. Baffle insertion port; 502. Threaded hole; 6. Limiting baffle; 601. Baffle through hole; 602. Outer flange; 603. Inner convex plate; 604. Limiting wedge; 7. Anti-loosening pressure plate; 701. Pressure plate groove; 702. Insulating pressure block; 703. Outer locking frame; 704. Locking frame insertion post. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1: Please refer to Figures 1 to 8 :

[0029] This utility model proposes a frame for a high-frequency transformer, comprising: a frame support 1, a winding post 2 above the frame support 1, a limiting end plate 3 at the top of the winding post 2, two support partitions 4 fixedly connected to the bottom of the frame support 1, winding groove plates 5 at the front and rear edges of the frame support 1, a limiting baffle 6 installed in front of the winding groove plate 5 by screws, an anti-loosening pressure plate 7 below the winding groove plate 5, and an insulating pressure block 702 fixedly connected above the anti-loosening pressure plate 7 to prevent loosening. An outer locking frame 703 is fixedly connected to the outer edge of the upper part of the pressure plate 7. Two locking frame inserts 704 are fixedly connected above the outer locking frame 703. The top of the locking frame inserts 704 is provided with a wedge-shaped protrusion. The locking frame inserts 704 are inserted between the winding groove plate 5 and the limiting baffle 6. By setting the anti-loosening pressure plate 7, the insulating pressure block 702 is pressed tightly against the bottom of the winding groove plate 5. The insulating pressure block 702 clamps and locks the wires wound around the metal pins, which plays an anti-loosening role and also has better shock resistance.

[0030] In this embodiment, two partition guide rods 401 are fixedly connected to the side of the support partition plate 4 away from the center of the frame support 1. Two pressure plate grooves 701 are opened on the edge of the anti-loosening pressure plate 7. The pressure plate grooves 701 are slidably connected to the partition guide rods 401 to play a guiding role. At the same time, through holes that are slidably connected to the pins are opened in the pressure plate grooves 701 and the insulating pressure block 702, so that the anti-loosening pressure plate 7 can be pushed vertically upward to the bottom of the winding groove plate 5, which facilitates the assembly and disassembly of the anti-loosening pressure plate 7.

[0031] In this embodiment, the outer edge of the winding slot plate 5 is provided with a wire-passing groove, the front edge of both sides of the wire-passing groove of the winding slot plate 5 is provided with a baffle insertion port 501, the front of the winding slot plate 5 is provided with a threaded hole 502, and the limiting baffle 6 is provided with a baffle through hole 601 through the front and rear. The baffle through hole 601 and the threaded hole 502 are connected by screws. The detachable limiting baffle 6 facilitates the disassembly of the anti-loosening pressure plate 7, making the high-frequency transformer more convenient for maintenance and inspection.

[0032] In Example 2, based on Example 1, the limiting baffle 6 has outer flanges 602 formed by bending the two edges. The outer flanges 602 are inserted into the baffle insertion slot 501. An inner convex plate 603 is protruding from the middle of the inner surface of the limiting baffle 6. A wedge-shaped limiting wedge head 604 is provided at the lower ends of both sides of the inner convex plate 603. The locking frame insert 704 is inserted into the gap between the inner convex plate 603 and the outer flange 602. The inner edge of the locking frame insert 704 is tightly fitted with the limiting wedge head 604, and the wedge-shaped protrusion of the locking frame insert 704 is tightly fitted with the inner convex plate 602. 03 Side view; Before coil winding, the locking post 704 is not inserted into the limiting baffle 6. After winding, the anti-loosening pressure plate 7 is firmly assembled with the winding slot plate 5, so that the locking post 704 is inserted into the limiting baffle 6 to lock the anti-loosening pressure plate 7. The anti-loosening pressure plate 7 at the bottom of the high-frequency transformer is quick to install. It can be quickly positioned by inserting the locking post 704 into the limiting baffle 6. The assembly is quick, the installation is firm and reliable, and there is a gap between the anti-loosening pressure plate 7 and the winding slot plate 5 to ensure that the transformer has efficient heat dissipation performance.

[0033] The working principle of this embodiment is as follows: First, when winding the coil in the high-frequency transformer frame, the anti-loosening pressure plate 7 is pulled out from under the winding slot plate 5. After the winding is completed, part of the coil will bypass the metal pin at the bottom of the frame support 1. The anti-loosening pressure plate 7 is then installed again at the bottom of the winding slot plate 5, so that the pressure plate slide groove 701 is slidably connected to the partition guide rod 401. The pin passes through the through hole of the anti-loosening pressure plate 7 and the insulating pressure block 702. The locking frame plug 704 is inserted into the inside of the limiting baffle 6, so that the inner edge of the locking frame plug 704 is tightly attached to the limiting wedge head 604, and the wedge-shaped protrusion of the locking frame plug 704 is tightly attached to the side of the inner protrusion plate 603. The anti-loosening pressure plate 7 is fixedly connected, so that the insulating pressure block 702 is tightly attached to the lower surface of the winding slot plate 5, and the wire wound in the metal pin is pressed tightly, so that the wire, the pin, and the winding slot plate 5 are tightly attached, improving the firmness of the wire winding and effectively improving the vibration resistance of the high-frequency transformer.

[0034] The following points should be noted in this article:

[0035] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0036] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0037] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A bobbin for a high frequency transformer, comprising: Skeleton support (1), a wire winding column (2) is provided above the skeleton support (1), a limiting end plate (3) is provided at the top of the wire winding column (2), two support partitions (4) are fixedly connected to the bottom of the skeleton support (1), and it is characterized in that wire groove plates (5) are provided at the front edge and the rear edge of the skeleton support (1), a limiting baffle (6) is installed in front of the wire groove plate (5) by screws, a loosening prevention pressure plate (7) is provided below the wire groove plate (5), an insulating pressing block (702) is fixedly connected above the loosening prevention pressure plate (7), an outer locking frame (703) is fixedly connected to the outer edge above the loosening prevention pressure plate (7), two locking frame insertion columns (704) are fixedly connected above the outer locking frame (703), a wedge-shaped convex block is provided at the top of the locking frame insertion column (704), and the locking frame insertion column (704) is inserted between the wire groove plate (5) and the limiting baffle (6).

2. A bobbin for a high frequency transformer according to claim 1, characterized in that Two partition guide rods (401) are fixedly connected to the side of the support partition (4) away from the center of the skeleton support (1), two pressure plate sliding grooves (701) are formed at the edge of the loosening prevention pressure plate (7), and the pressure plate sliding grooves (701) are slidably connected to the partition guide rods (401).

3. A bobbin for a high frequency transformer according to claim 2, characterized in that A wire passing groove is formed at the outer edge of the wire groove plate (5), baffle sockets (501) are formed at the front edges of the two side surfaces of the wire passing groove of the wire groove plate (5), and threaded holes (502) are formed in front of the wire groove plate (5).

4. A bobbin for a high frequency transformer according to claim 3, wherein Outer flanges (602) are bent at the two edges of the limiting baffle (6), the outer flanges (602) are inserted into the baffle sockets (501), a baffle through hole (601) is formed through the front and back of the limiting baffle (6), and the baffle through hole (601) and the threaded hole (502) are connected by screws.

5. The bobbin for a high frequency transformer according to claim 1, wherein An inner convex plate (603) protrudes in the middle of the inner surface of the limiting baffle (6), and a limiting wedge head (604) with a wedge-shaped structure is provided at each of the lower ends on both sides of the inner convex plate (603).

6. A bobbin for a high frequency transformer according to claim 5, wherein The locking frame insertion column (704) is inserted into the gap between the inner convex plate (603) and the outer flange (602), the inner edge of the locking frame insertion column (704) is closely attached to the limiting wedge head (604), and the wedge-shaped convex block of the locking frame insertion column (704) is closely attached to the side surface of the inner convex plate (603).

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