Transformer framework structure

Abstract

The transformer framework structure comprises a framework and PINs arranged on the framework, the PINs are arranged on the framework in a cold insertion mode, each PIN comprises a horizontal part and a vertical part, the framework is provided with an installation hole allowing the vertical part to penetrate through and a containing cavity allowing the horizontal part to be placed in, and the containing cavity is provided with a limiting rib located on the opening side of the containing cavity. The horizontal part is located on the inner side of the limiting rib. By adopting the structure, the PINs are arranged on the framework in a cold insertion manner, the framework is provided with the mounting holes for the vertical parts of the PINs to penetrate through and the accommodating cavities for the horizontal parts of the PINs to be placed in, and the limiting ribs located on the opening sides of the accommodating cavities are arranged on the accommodating cavities, so that the PINs are longitudinally limited by utilizing the mounting holes in the framework; the limiting ribs are utilized to realize transverse limitation of the PINs, finally cold plug installation and freedom degree limitation are realized, reliable and stable work of the PINs relative to the framework is ensured, and a powerful guarantee is provided for thrust / tension stability.

Description

Technical Field

[0001] This utility model relates to a transformer frame structure, and more particularly to a transformer frame structure that uses a cold insertion method to install PIN pins and achieves stable installation. Background Technology

[0002] To meet the requirement of a 10kg pull force for 60 seconds before soldering, the installation of transformer bobbins and pins currently employs two methods: cold insertion and hot insertion. Hot insertion incurs high mold costs, while cold insertion, due to the degree of freedom of the pins relative to the transformer bobbin, leads to instability and insufficient push / pull force. Therefore, there is an urgent need for a transformer bobbin structure that provides stable cold insertion for pin installation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a transformer frame structure that features stable installation of PIN pins using a cold insertion method.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a transformer frame structure, including a frame and PIN pins disposed on the frame, the innovation of which is that the PIN pins are cold-inserted onto the frame, the PIN pins include a horizontally disposed horizontal part and a vertically disposed vertical part located below the horizontal part, the frame is provided with a mounting hole for the vertical part to pass through and a receiving cavity for the horizontal part to be inserted, the receiving cavity is provided with a limiting rib located on the opening side of the receiving cavity, and the horizontal part is located inside the limiting rib.

[0005] Preferably, the cross-section of the PIN pin is circular or square;

[0006] Alternatively, the cross-section of the horizontal portion may be circular or square.

[0007] Preferably, the skeleton is provided with a plurality of receiving cavities for inserting the PIN pins one by one, and the mounting holes are connected to and correspond one-to-one with the receiving cavities.

[0008] Preferably, the skeleton is provided with at least two mirror-arranged receiving cavities and PIN pins.

[0009] Preferably, the receiving cavity is L-shaped, including a first part through which the vertical part passes and is inserted into the mounting hole, and a second part through which the horizontal part is rotated by a preset angle and placed. The first part is open upward and faces the operating side, and the second part is open facing the operating side. The first part and the second part are connected.

[0010] The limiting rib is located on the opening side of the second part.

[0011] Preferably, the portion of the second part that contacts the horizontal portion is one of a plane, an arc-shaped surface, or a sphere.

[0012] Preferably, the second part is provided with a chamfer on the opening side of the second part;

[0013] The limiting rib is a longitudinal rib that is perpendicular to the horizontal part. The longitudinal rib is a cuboid structure, or the longitudinal rib is a strip structure whose height gradually decreases from the outside to the inside.

[0014] Preferably, the surface on the second part that is directly opposite and in contact with the horizontal part is an inclined surface, which is located at the end of the horizontal part away from the vertical part.

[0015] Preferably, the surface of the second part that is directly in contact with the horizontal part, the top surface that is directly in contact with the horizontal part, and the bottom surface that is directly in contact with the horizontal part are all inclined surfaces, and the inclined surface that is directly in contact with the horizontal part is located at the end of the horizontal part away from the vertical part.

[0016] The horizontal part is rotated by a preset angle and placed into the second part, wherein the preset angle is greater than 90°.

[0017] Preferably, the limiting rib is a transverse rib arranged parallel to the horizontal part. The transverse rib has a cuboid structure or an irregular structure. The top surface of the transverse rib is higher than the bottom edge of the opening side of the receiving cavity and the bottom of the receiving cavity where the receiving cavity contacts the PIN needle.

[0018] The limiting rib and the skeleton are an integral structure.

[0019] The advantages of this utility model are as follows: By adopting the above structure, the PIN pin is cold-inserted onto the frame. The frame is provided with mounting holes for the vertical part of the PIN pin to pass through and receiving cavities for the horizontal part of the PIN pin to be inserted. Limiting ribs are provided on the receiving cavities on the opening side of the receiving cavities. The mounting holes on the frame are used to restrict the longitudinal direction of the PIN pin, and the limiting ribs are used to restrict the lateral direction of the PIN pin. Ultimately, cold-insertion installation and degree of freedom restriction are achieved, ensuring that the PIN pin works reliably and stably relative to the frame, and providing a strong guarantee for the stability of thrust / tension. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a perspective view of the first form of a transformer frame structure according to this utility model.

[0022] Figure 2 yes Figure 1The main view.

[0023] Figure 3 yes Figure 2 AA sectional view.

[0024] Figure 4 yes Figure 2 BB cross-sectional view.

[0025] Figure 5 This is a schematic diagram of the structure at the position of the horizontal part of the PIN needle and the skeleton receiving cavity in the first form.

[0026] Figure 6 This is a schematic diagram of the second form of a transformer frame structure according to this utility model.

[0027] Figure 7 yes Figure 6 CC section view.

[0028] Figure 8 This is a schematic diagram of the structure at the position of the horizontal part of the PIN needle and the skeleton receiving cavity in the second form.

[0029] Figure 9 This is a schematic diagram of the third form of a transformer frame structure according to this utility model.

[0030] Figure 10 yes Figure 9 DD sectional view.

[0031] Figure 11 yes Figure 9 EE sectional view.

[0032] Figure 12 This is a schematic diagram of the structure at the position of the horizontal part of the PIN needle and the skeleton receiving cavity in the third form.

[0033] In the diagram: 1-PIN pin, 11-horizontal part, 12-vertical part, 2-skeleton, 21-mounting hole, 22-accommodating cavity, 221-first part, 222-second part, 223-chamfer, 23-limiting rib. Detailed Implementation

[0034] The transformer frame structure of this utility model includes a frame 2 and a PIN pin 1 disposed on the frame 2. The PIN pin 1 is cold-inserted onto the frame 2. The PIN pin 1 includes a horizontally disposed horizontal part 11 and a vertically disposed vertical part 12 located below the horizontal part 11. The frame 2 is provided with a mounting hole 21 for the vertical part 12 to pass through and a receiving cavity 22 for the horizontal part 11 to be inserted. A limiting rib 23 located on the opening side of the receiving cavity 22 is provided on the receiving cavity 22. The horizontal part 11 is located inside the limiting rib 23. By adopting the above structure, the PIN pin 1 is cold-inserted onto the frame 2. The frame 2 is provided with a mounting hole 21 for the vertical part 12 of the PIN pin 1 to pass through and a receiving cavity 22 for the horizontal part 11 of the PIN pin 1 to be inserted. A limiting rib 23 located on the opening side of the receiving cavity 22 is provided on the receiving cavity 22. The mounting hole 21 on the frame 2 is used to restrict the longitudinal direction of the PIN pin 1, and the limiting rib 23 is used to restrict the lateral direction of the PIN pin 1. Finally, cold-insertion installation and degree of freedom restriction are achieved, ensuring that the PIN pin 1 works reliably and stably relative to the frame 2, and providing a strong guarantee for the stability of thrust / tension.

[0035] To ensure the structural strength of the skeleton 2 and the PIN angle pull force before soldering ≥10kg 60s, the following three solutions are available to reduce production costs. The structure is modified to use cold-insertion pins to prevent the PIN pin 1 from loosening or rotating. In these three solutions, the PIN pin 1 can be either a round PIN pin 1 or a square PIN pin 1 (for preventing loosening and detachment). Specifically, the cross-section of the PIN pin 1 is circular or square, or the cross-section of the horizontal part 11 is circular or square.

[0036] In this invention, the frame 2 is provided with a plurality of receiving cavities 22 for inserting PIN pins 1 one by one, and the mounting holes 21 are connected to and correspond one-to-one with the receiving cavities 22. The frame 2 is provided with at least two mirror-arranged receiving cavities 22 and PIN pins 1. The middle two receiving cavities 22 are mirror-arranged so that the PIN pins 1 have different orientations, preventing the PIN pins 1 from rotating while meeting the PIN spacing requirements.

[0037] Example 1

[0038] like Figures 1 to 5As shown, the receiving cavity 22 of this utility model is L-shaped, including a first part 221 through which the vertical part 12 passes and is inserted into the mounting hole 21, and a second part 222 through which the horizontal part 11 is rotated at a preset angle and inserted. The first part 221 is open upwards and faces the operating side, while the second part 222 is also open facing the operating side. The first part 221 and the second part 222 are connected. A limiting rib 23 is provided on the open side of the second part 222. By setting the receiving cavity 22 into an L-shaped groove, after inserting the PIN needle 1, the PIN needle 1 is rotated in to prevent it from loosening and falling off. The vertical rib makes the PIN needle 1 fit more tightly with the frame 2, preventing the PIN needle 1 from easily slipping out after being rotated in.

[0039] The portion of the second part 222 that contacts the horizontal part 11 is a plane, an arc-shaped surface, or a spherical surface. When the surface of the second part 222 that is directly opposite and in contact with the horizontal part 11 is an inclined surface, the inclined surface is located at the end of the horizontal part 11 away from the vertical part 12. During assembly, the inclined surface slightly interferes with the PIN pin 1. After the PIN pin 1 is turned in, it will be obstructed if it is turned out again, thereby preventing the PN pin from rotating.

[0040] To facilitate the guiding of the horizontal portion 11 of the PIN pin 1 into the receiving cavity 22, a chamfer 223 is provided on the opening side of the second portion 222. The aforementioned limiting rib 23 is a longitudinal rib perpendicular to the horizontal portion 11. The longitudinal rib has a cuboid structure or a strip structure whose height gradually decreases from the outside to the inside. The provision of the vertical rib makes the PIN pin 1 fit more tightly with the skeleton 2, preventing the PIN pin 1 from easily slipping out after being rotated in.

[0041] Example 2

[0042] like Figures 6 to 8 As shown, in this invention, the surfaces of the second part 222 that are directly in contact with the horizontal part 11, the top surface that is directly in contact with the horizontal part 11, and the bottom surface that is directly in contact with the horizontal part 11 are all inclined surfaces. The inclined surfaces that are directly in contact with the horizontal part 11 are located at the end of the horizontal part 11 away from the vertical part 12. In this embodiment, the bottom surfaces that are directly in contact with the horizontal part 11 are all inclined surfaces, which are equivalent to the function of limiting ribs, restricting the horizontal part from sliding out from the opening side of the receiving cavity. The horizontal part 11 is rotated at a preset angle and placed into the second part 222, and the preset angle is greater than 90°. The receiving cavity 22 is set in an L-shaped groove, with the upper, lower, and left sides being inclined surfaces, resembling a trumpet mouth. After the PIN pin 1 is vertically inserted into the corresponding position, it is screwed in to prevent the PIN pin 1 from loosening up and down. In addition, the rotation angle of the PIN pin 1 is greater than 90°, which further prevents the PIN pin 1 from sliding outward.

[0043] Example 3

[0044] like Figures 9 to 12As shown, in this utility model, the limiting rib 23 is a transverse rib parallel to the horizontal part 11. The transverse rib has a cuboid structure or an irregular structure. The top surface of the transverse rib is higher than the bottom edge of the opening side of the receiving cavity 22 and the bottom of the receiving cavity 22 where it contacts the PIN needle 1. The limiting rib 23 and the skeleton 2 are an integral structure. The receiving cavity 22 is provided with an L-shaped groove to prevent the PIN needle 1 from moving up and down. In addition, the transverse rib is provided to further prevent the horizontal part 11 of the PIN needle 1 from rotating out of the receiving cavity 22.

[0045] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details.

Claims

1. A transformer core structure comprising a core and a PIN pin disposed on the core, characterized by: The PIN needle cold plug-in is arranged on the framework, the PIN needle comprises a horizontal part arranged horizontally and a vertical part arranged vertically below the horizontal part, the framework is provided with a mounting hole for the vertical part to pass through and a containing cavity for the horizontal part to be arranged in, and a limiting rib is arranged on the containing cavity and located at the opening side of the containing cavity, and the horizontal part is located inside the limiting rib.

2. A transformer core structure as claimed in claim 1, characterized in that: The cross section of the PIN needle is circular or square. Alternatively, the cross section of the horizontal part is circular or square.

3. A transformer core structure as claimed in claim 1, characterized in that: The framework is provided with a plurality of containing cavities for the PIN needles to be arranged one by one, and the mounting hole and the containing cavity are in communication and correspond to each other one by one.

4. A transformer core structure as claimed in claim 3, characterized in that: The framework is provided with at least two containing cavities and PIN needles arranged in mirror images.

5. A transformer core structure as claimed in claim 1, characterized in that: The containing cavity is L-shaped and comprises a first part for the vertical part to pass through and be inserted into the mounting hole and a second part for the horizontal part to be arranged in and rotated by a preset angle, the first part is upwardly through and the opening side is opposite to the operation side, the opening side of the second part is opposite to the operation side, and the first part and the second part are through; The limiting rib is arranged at the opening side of the second part.

6. A transformer core structure as claimed in claim 5, characterized in that: The part on the second part in contact with the horizontal part is one of a plane, an arc surface or a spherical surface.

7. A transformer core structure as claimed in claim 5, characterized in that: The second part is provided with a chamfer at the opening side of the second part. The limiting rib is a longitudinal rib arranged perpendicularly to the horizontal part, the longitudinal rib is a cuboid structure, or the longitudinal rib is a strip structure with a gradually decreasing height dimension from outside to inside.

8. A transformer core structure as claimed in claim 5, characterized in that: The surface on the second part opposite to and directly in contact with the horizontal part is an inclined surface, and the inclined surface is located at one end of the horizontal part away from the vertical part.

9. A transformer core structure as claimed in claim 5, characterized in that: The surface on the second part opposite to and directly in contact with the horizontal part, the top surface directly in contact with the horizontal part and the bottom surface directly in contact with the horizontal part are all inclined surfaces, and the inclined surface opposite to and directly in contact with the horizontal part is located at one end of the horizontal part away from the vertical part. The horizontal part is arranged in the second part and rotated by a preset angle, and the preset angle is greater than 90°.

10. A transformer core structure as claimed in claim 1, characterized in that: The limiting rib is a transverse rib arranged parallel to the horizontal part, the transverse rib is a cuboid structure or an irregular structure, and the top surface of the transverse rib is higher than the bottom edge of the opening side of the containing cavity and the bottom of the containing cavity in contact with the PIN needle. The limiting rib and the framework are an integral structure.

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