Pin piece and shell assembly of network transformer

Abstract

The utility model discloses a pin piece of a network transformer. The pin piece of the network transformer comprises a connecting part, a pin, a bonding pad and a wrapping post. The connecting part is provided with a lead clamping groove with an upward groove opening, and the lead clamping groove is a through groove with the front end and the rear end open. One end of the Pin is connected with the connecting part, and the Pin is arranged corresponding to the lead clamping groove. The bonding pad is connected to the other end of the Pin, the bonding pad is opposite to the lead clamping groove in a front-back mode, and the height position of the upper disc face of the bonding pad is lower than the height position of the upper end of the lead clamping groove. One end of the wrapping post is connected to the connecting part. Wherein the wrapping post and the bonding pad are located on the front side and the rear side of the connecting part respectively. The utility model further discloses a shell assembly comprising the pin piece. By using the pin piece, batch spot welding operation can be realized without a wire clamping seat, and the production and manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to a network transformer, in particular to a pin component and a housing component of a network transformer. Background Art

[0002] During the production process of a network transformer, the pins of the network transformer need to be connected to the leads of the internal coil. In the prior art, as Figure 1 shown, one method is to temporarily fix the coil lead 1 on the pin 2 by winding, and then through the process of high-temperature tin dipping, the coil lead 1 and the pin 2 are fixed by solder. However, the above method is complex in operation, difficult for automated machines to operate, and needs to be completed manually, and cannot be carried out batch by batch automatically, resulting in low production efficiency. To solve the problem of low production efficiency above, in the prior art, as Figure 2 and Figure 3 shown, the pin component 4 can be embedded in the plastic housing 3. The pin component 4 is provided with a pad 41. One end of the coil lead 1 is clamped on a special wire clamping seat 5 (the wire clamping seat 5 is composed of a plastic wire clamping mold, an elastic silica gel strip and a magnet). After the coil lead 1 is pulled, it can be centered on the pad 41, and then the coil lead 1 and the pad 41 are welded together by spot welding, and finally the redundant part of the pin component 4 is cut off. However, the above method requires a large number of wire clamping seats 5 to be used in supporting, resulting in high production cost. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a pin component of a network transformer, which can realize batch spot welding operation without a wire clamping seat and has low production and manufacturing cost.

[0004] The utility model also provides a housing component with the above pin component of the network transformer.

[0005] The pin component of the network transformer according to the first aspect embodiment of the utility model includes: a connecting portion, provided with a lead card slot with an upward slot opening, and the lead card slot is a through slot with openings at the front and rear ends; a Pin foot, one end of which is connected to the connecting portion, and the Pin foot is arranged corresponding to the lead card slot; a pad, connected to the other end of the Pin foot, the pad is arranged front and rear opposite to the lead card slot, and the height position of the upper disk surface of the pad is lower than the height position of the upper end of the lead card slot; a winding post, one end of which is connected to the connecting portion; wherein, the winding post and the pad are respectively located on the front and rear sides of the connecting portion.

[0006] The pin component of the network transformer according to the embodiments of the present utility model has at least the following beneficial effects: The above-mentioned pin component is provided with a lead slot and a winding post by itself, so that there is no need to use a wire clamping seat to assist in the positioning of the lead, and the production and manufacturing cost is low. In addition, the pin component adopts a structure in which the winding post and the pad are respectively located on the front and rear sides of the connecting portion, and the structure is clear and reasonable, which is beneficial to the operation of automated equipment.

[0007] According to some embodiments of the present utility model, a plurality of groups of the lead slot, the Pin pins and the pads are arranged in one-to-one correspondence and arranged in the left-right direction.

[0008] According to some embodiments of the present utility model, the notch of the lead slot is of a flared structure.

[0009] According to some embodiments of the present utility model, the two sides of the notch of the lead slot are provided with rounded corners, and the flared structure is formed between the two rounded corners on both sides.

[0010] According to some embodiments of the present utility model, the connecting portion is a vertically arranged plate body, the Pin pin includes a first connecting section and a second connecting section, the first connecting section is perpendicular to the connecting portion, one end of the first connecting section is connected to the connecting portion, the second connecting section is perpendicular to the first connecting section, one end of the second connecting section is connected to the other end of the first connecting section, and the pad is connected to the other end of the second connecting section and extends towards the connecting portion.

[0011] According to some embodiments of the present utility model, the connecting portion is a vertically arranged plate body, and the winding post is perpendicular to the connecting portion.

[0012] According to some embodiments of the present utility model, the other end of the winding post is provided with an end head for restricting the winding from slipping out of the winding post.

[0013] According to some embodiments of the present utility model, the winding posts are connected to the left and right ends of the connecting portion.

[0014] According to some embodiments of the present utility model, the connecting portion, the Pin pins, the pads and the winding posts are integrally formed sheet metal structures.

[0015] The housing assembly according to the second aspect embodiments of the present utility model includes: a housing provided with a coil accommodating cavity, the coil accommodating cavity is provided with an open mouth, a lead guiding groove with an upward opening is provided at the peripheral position of the open mouth, and the lead guiding groove is a through groove with front and rear openings; the pin component according to the first aspect embodiments of the present utility model, the Pin pins are embedded in the housing, the connecting portion and the winding post are located outside the housing, the lead slot and the lead guiding groove are opposite to each other front and rear, and the pad is located on one side of the lead guiding groove close to the lead slot.

[0016] The housing assembly according to the embodiment of the present utility model has at least the following beneficial effects: Since the pin component of the network transformer described in the first aspect embodiment of the present utility model is adopted, the pin component is self-provided with a lead slot and a winding column, so that it is not necessary to use a wire clamping seat to assist in the positioning and fixing of the lead. In addition, by providing a lead guide groove in the housing, the lead guide groove is opposite to the lead slot of the pin component front and back, so that the lead of the coil can be better positioned. Moreover, the solder pad is located on one side of the lead guide groove close to the lead slot, so that the leads of the coil are positioned by the groove structure on both sides of the solder pad, and the position of the leads of the coil is more stable, which is beneficial to improving the quality of spot welding.

[0017] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a conventional structure for realizing lead connection;

[0020] Figure 2 is a conventional plastic housing pre-embedded with pin components;

[0021] Figure 3 is a conventional structure for realizing lead positioning through a wire clamping seat;

[0022] Figure 4 is one of the three-dimensional schematic diagrams of the conventional pin component;

[0023] Figure 5 is the second three-dimensional schematic diagram of the pin component according to the embodiment of the present utility model;

[0024] Figure 6 is the structural schematic diagram when the pin component according to the embodiment of the present utility model is in use;

[0025] Figure 7 is Figure 6 the partial enlarged schematic diagram of.

[0026] Reference Signs:

[0027] Coil lead 1, pin 2, plastic housing 3, pin component 4, solder pad 41, wire clamping seat 5

[0028] Connection part 100, lead slot 110;

[0029] Pin foot 200, first connection section 210, second connection section 220;

[0030] Pad 300;

[0031] Wire-winding post 400, end head 410;

[0032] Housing 500, coil accommodating cavity 510, lead guiding groove 520. Specific implementation manners

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0035] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0036] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0037] Refer to Figures 1 to 3 , which is an existing lead connection structure. For detailed description, please refer to the description of the background technology and will not be repeated here.

[0038] Refer to Figures 4 to 5, which is the pin component provided by the embodiment of the present invention, includes: a connection part 100, a Pin foot 200, a pad 300, and a winding post 400. The connection part 100 is provided with a lead slot 110 with the notch facing upward, and the lead slot 110 is a through slot with openings at the front and rear ends. One end of the Pin foot 200 is connected to the connection part 100, and the Pin foot 200 is correspondingly arranged with the lead slot 110. The pad 300 is connected to the other end of the Pin foot 200, the pad 300 is opposite to the lead slot 110 front and back, and the height position of the upper surface of the pad 300 is lower than the height position of the upper end of the lead slot 110. One end of the winding post 400 is connected to the connection part 100. Among them, the winding post 400 and the pad 300 are respectively located on the front and rear sides of the connection part 100.

[0039] Referring to Figure 6 and Figure 7 , during production, the above-mentioned pin component is embedded in the housing 500 of the network transformer, and the lead of the coil pre-installed in the housing 500 is traction-inserted into the lead slot 110. Since the pad 300 and the lead slot 110 are opposite to each other front and back and the position of the pad 300 is lower than the upper end of the lead slot 110, the lead can accurately abut against the pad 300. After the coil lead abuts against the pad 300, the redundant lead is pulled to the other side of the connection part 100 and wound around the winding post 400, and then the spot welding operation can be carried out. After the spot welding is completed, the Pin foot 200 is bent into a seagull shape by a special tooling device, and at the same time, the redundant part of the pin component is cut off while the Pin foot 200 is retained, and the pin structure of the network transformer can be formed.

[0040] The above-mentioned pin component is self-equipped with a lead slot 110 and a winding post 400, so there is no need to use a wire clamping seat to assist in the positioning of the lead, and the production and manufacturing cost is low. In addition, the pin component adopts a structure in which the winding post 400 and the pad 300 are respectively located on the front and rear sides of the connection part 100, and the structure is clear and reasonable, which is conducive to the operation of automated equipment. According to the actual production data, using the pin component of the present invention for production, compared with the traditional process of winding + dipping in tin, the manufacturing efficiency can be increased by 2-3 times, and the cost can be reduced by 30-50%; while compared with the process of using a wire clamping seat + spot welding, the manufacturing efficiency can be increased by about 1.2 times, and the cost can be reduced by about 20%.

[0041] In the embodiment, a plurality of groups of the lead slot 110, the Pin foot 200, and the pad 300 are correspondingly arranged and arranged in the left-right direction, so as to correspondingly position and connect the leads of multiple coils.

[0042] In the embodiment, preferably, the width of the narrowest part of the lead slot 110 is 0.7-2 times the diameter of the coil lead.

[0043] In an embodiment, the notch of the lead slot 110 is of a flared structure. With the above structure, it is convenient to accurately guide the lead into the lead slot 110. Specifically, the two sides of the notch of the lead slot 110 are provided with rounded corners, and a flared structure is formed between the two rounded corners on both sides. The flared portion is formed by rounding the corners, which has a simple structure and is easy to implement, and the rounded corners can guide the lead more smoothly. It can be imagined that in some embodiments, a V-shaped opening can also be formed by providing inclined surfaces on both sides of the notch of the lead slot 110 as the flared portion, which can be configured according to the actual situation.

[0044] In an embodiment, the connecting portion 100 is a vertically arranged plate body. The Pin foot 200 includes a first connecting section 210 and a second connecting section 220. The first connecting section 210 is perpendicular to the connecting portion 100. One end of the first connecting section 210 is connected to the connecting portion 100. The second connecting section 220 is perpendicular to the first connecting section 210. One end of the second connecting section 220 is connected to the other end of the first connecting section 210. The solder pad 300 is connected to the other end of the second connecting section 220 and extends towards the connecting portion 100. With the above structure, the structural strength is good. In addition, the solder pad 300 and the Pin foot 200 form a hook structure towards the connecting portion 100, which is convenient for being embedded in the housing of the network transformer and has good connection strength.

[0045] In an embodiment, the winding post 400 is perpendicular to the connecting portion 100. With the above structure, the connection strength between the winding post 400 and the connecting portion 100 is good, and the winding post 400 perpendicular to the connecting portion 100 is also convenient for winding.

[0046] In an embodiment, the other end of the winding post 400 is provided with a terminal head 410 for restricting the winding from coming out of the winding post 400, thereby preventing the winding from coming out. In an embodiment, the terminal head 410 is a large-size end, so as to realize the function of restricting the coming out.

[0047] In an embodiment, the winding posts 400 are connected to the left and right ends of the connecting portion 100. With the above structure, for the coil leads on the front side, they can be uniformly wound around the front winding post 400, and for the coil leads on the rear side, they can be uniformly wound around the rear winding post 400, thus avoiding the situation of long-distance winding.

[0048] In an embodiment, the connecting portion 100, the Pin foot 200, the solder pad 300, and the winding post 400 are of an integrally formed sheet metal structure, which is convenient for production and manufacturing.

[0049] Refer to Figure 6 and Figure 7, which is the housing assembly provided by the embodiment of the present utility model, includes a housing 500 and the pin component of the first aspect embodiment of the present utility model. A coil accommodating cavity 510 is provided, the coil accommodating cavity 510 is provided with an opening, and a lead guiding groove 520 with an upward opening is provided at the peripheral position of the opening. The lead guiding groove 520 is a through groove with front and rear openings; the Pin pins 200 of the pin component are embedded in the housing 500, the connecting portion 100 and the winding column 400 are located outside the housing 500, the lead slot 110 and the lead guiding groove 520 are opposite to each other front and back, and the solder pad 300 is located on one side of the lead guiding groove 520 close to the lead slot 110. Since the pin component of the network transformer of the first aspect embodiment of the present utility model is adopted, the pin component is self-equipped with a lead slot 110 and a winding column 400, so that it is not necessary to use a wire clamping seat to assist in the positioning and fixing of the lead. In addition, by providing a lead guiding groove 520 in the housing 500, the lead guiding groove 520 is opposite to the lead slot 110 of the pin component front and back, so that the lead of the coil can be better positioned, and the solder pad 300 is located on one side of the lead guiding groove 520 close to the lead slot 110, so that the leads of the coil are positioned by the groove structure on both sides of the solder pad 300, and the position of the leads of the coil is more stable, which is beneficial to improving the quality of spot welding.

[0050] In the embodiment, the Pin pins 200 of the pin component are embedded in the housing 500. Specifically, the pin component can be placed in the mold when the housing 500 is injection-molded, so as to form the housing assembly by encapsulation injection.

[0051] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0052] The embodiments of the present utility model have been described in detail above with reference to the drawings. However, the present utility model is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present utility model within the knowledge scope of those of ordinary skill in the art.

Claims

1. A pin component of a network transformer, characterized in that, Comprising: A connecting portion (100) is provided with a lead slot (110) with an upward-facing notch, and the lead slot (110) is a through slot with openings at both the front and rear ends; A Pin foot (200), one end of which is connected to the connecting portion (100), and the Pin foot (200) is arranged corresponding to the lead slot (110); A pad (300) is connected to the other end of the Pin foot (200), the pad (300) is front and rear opposite to the lead slot (110), and the height position of the upper surface of the pad (300) is lower than the height position of the upper end of the lead slot (110); A winding post (400), one end of which is connected to the connecting portion (100); Wherein, the winding post (400) and the pad (300) are respectively located on the front and rear sides of the connecting portion (100).

2. The pin component of the network transformer according to claim 1, wherein: Multiple groups of the lead slot (110), the Pin foot (200), and the pad (300) are arranged in one-to-one correspondence and are arranged in the left-right direction.

3. The pin component of the network transformer according to claim 1, wherein: The notch of the lead slot (110) is of a flared structure.

4. The pin component of the network transformer according to claim 3, characterized in that: Both sides of the notch of the lead slot (110) are provided with rounded corners, and the flared structure is formed between the rounded corners on both sides.

5. The pin component of the network transformer according to claim 1, characterized in that: The connecting portion (100) is a vertically arranged plate body, the Pin foot (200) includes a first connecting section (210) and a second connecting section (220), the first connecting section (210) is perpendicular to the connecting portion (100), one end of the first connecting section (210) is connected to the connecting portion (100), the second connecting section (220) is perpendicular to the first connecting section (210), one end of the second connecting section (220) is connected to the other end of the first connecting section (210), and the pad (300) is connected to the other end of the second connecting section (220) and extends towards the connecting portion (100).

6. The pin component of the network transformer according to claim 1, wherein: The connecting portion (100) is a vertically arranged plate body, and the winding post (400) is perpendicular to the connecting portion (100).

7. The pin component of the network transformer according to claim 1, wherein: The other end of the winding post (400) is provided with a head portion (410) for restricting the winding from coming out of the winding post (400).

8. The pin component of the network transformer according to claim 2, wherein: The winding posts (400) are connected to the left and right ends of the connecting portion (100).

9. The pin component of the network transformer according to claim 1, characterized in that: The connecting portion (100), the Pin foot (200), the pad (300), and the winding post (400) are of an integrally formed sheet metal structure.

10. Housing assembly, characterized in that, Comprising: A housing (500) is provided with a coil accommodating cavity (510), the coil accommodating cavity (510) is provided with an opening, and a lead guiding slot (520) with an upward-facing opening is arranged at the peripheral position of the opening, and the lead guiding slot (520) is a through slot with openings at the front and rear; The pin component according to any one of claims 1 to 9, the Pin foot (200) is embedded in the housing (500), the connecting portion (100) and the winding post (400) are located outside the housing (500), the lead slot (110) and the lead guiding slot (520) are front and rear opposite, and the pad (300) is located on the side of the lead guiding slot (520) close to the lead slot (110).

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