CN104009304B - Terminal structure - Google Patents

Abstract

A terminal structure includes a base, a connecting portion, a clamping portion and a first scraping portion. The connecting part is connected with the base, is of a U-shaped structure and comprises a first end and a second end. The clamping part comprises a first clamping plate and a second clamping plate, the first clamping plate is connected with the first end of the connecting part, the second clamping plate is connected with the second end of the connecting part, and a slit is formed between one surface of the first clamping plate and one surface of the second clamping plate. The first scraping part is connected with one side of the first clamping plate and the first end of the connecting part, and the first scraping part is provided with a first inclined edge which inclines from the top edge of the first clamping plate to the first end.

Description

Terminal structure

technical field

The present invention relates to a terminal structure.

Background technique

With the development of the electronics industry, the application of motors can be seen everywhere in people's lives. In the structure of the motor, the electrical connection between the wire (such as enameled wire) and the circuit board needs to be achieved through a terminal structure, in which the wire is conducting The periphery of the material (such as copper wire) is usually covered with a layer of insulating varnish to protect the conductive material from being damaged by moisture in the air or other factors. In this case, if the wire passes through the terminal structure and the circuit board For electrical connection, it is necessary to strip off the insulating varnish covering the periphery of the wire.

However, the insulating varnish material of the general wire has high heat resistance, and it is difficult to be broken by soldering. It needs to be scraped off with a jig, but the cost is high. The current method is to use the friction force when the wire is combined with the terminal structure. Directly scrape off the insulating varnish material of the wire, and at the same time make the two electrically connected, but the current practice, the area that can be scraped off is small, once the exposed conductive material is oxidized, it will cause the problem of poor contact. Therefore, how to provide a terminal structure that can scrape off the insulating varnish on the surface of the wire when it is combined with the wire, especially, has a larger scraping area has become one of the important issues.

Contents of the invention

The purpose of the present invention is to propose a terminal structure to solve the problems existing in the prior art.

To achieve the above purpose, a terminal structure according to the present invention includes a base, a connecting portion, a clamping portion and a first scraping portion. The connection part is connected with the base, and the connection part is a U-shaped structure, and it includes a first end and a second end. The clamping portion includes a first splint and a second splint, the first splint is connected to the first end of the connecting portion, the second splint is connected to the second end of the connecting portion, and a surface of the first splint is connected to a surface of the second splint A slit is formed between them. The first scraping portion is connected to one side of the first clamping plate and the first end of the connecting portion, and the first scraping portion has a first bevel, and the first beveling side is inclined from the top edge of the first clamping plate to the first end.

In one embodiment, it further includes a first support portion connected to the first splint, and a second support portion connected to the second splint and extending away from the first support portion.

In one embodiment, it further includes a second scraping portion connected to the other side of the first splint and the first end of the connecting portion, and the second scraping portion has a second bevel, and the second bevel is formed by the first The top edge of the splint slopes toward the first end.

In one embodiment, it further includes a second scraping part connected to one side of the second splint and the second end of the connecting part, and the second scraping part has a second bevel, and the second bevel is formed by the second splint. The top edge slopes toward the second end.

In one embodiment, the first scraping portion is opposite to the second scraping portion.

In one embodiment, it further includes a third scraping portion connected to the other side of the first splint and the first end of the connecting portion, and the third scraping portion has a third bevel, and the third bevel is formed by the first The top edge of the splint slopes toward the first end.

In one embodiment, it further includes a fourth scraping portion connected to the other side of the second splint and the second end of the connecting portion, and the fourth scraping portion has a fourth bevel, and the fourth bevel is formed by the second The top edge of the splint slopes toward the second end.

In one embodiment, it further includes an accommodating portion disposed inside the bottom end of the connecting portion.

In one embodiment, the first bevel has a rough microstructure.

In one embodiment, the first bevel is jagged or smooth.

With the cooperation of the first scraping part, the terminal structure of the present invention can scrape off the insulating varnish on the surface of the wire when it is combined with the wire.

Description of drawings

FIG. 1 is a schematic diagram of a terminal structure of a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of terminal structure and wire combination;

Fig. 3 is a schematic diagram of a terminal structure of another preferred embodiment of the present invention; and

FIG. 4 is a schematic diagram of a terminal structure of another preferred embodiment of the present invention.

Wherein, the reference signs are explained as follows:

1, 1a, 1b: Terminal structure

11: Pedestal

12: Connecting part

121: first end

122: second end

13: clamping part

131: First splint

132: Second splint

14: The first scraping part

141: first hypotenuse

15: Second scraping part

151: second hypotenuse

16: The third scraping part

161: third hypotenuse

17: The fourth scraper

171: fourth hypotenuse

18: Accommodating Department

191: First support part

192: Second support part

2: Wire

21a: Scratched part

detailed description

A terminal structure according to a preferred embodiment of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols. It should be noted that the drawings are only for illustration and do not represent actual dimensions and proportions. In practice, the dimensions and proportions can be designed in different ways according to needs.

Please refer to FIG. 1 , which is a schematic diagram of a terminal structure 1 according to a preferred embodiment of the present invention. In practice, the terminal structure 1 can be used in conjunction with a circuit board (not shown in the figure) and one or more wires 2, wherein the wire 2 can be a polyester enamelled wire (PEW), the surface of which is covered with a layer Insulating varnish to protect the conductive material inside from damage. The terminal structure 1 can be used to electrically connect the circuit board and the wire 2. In other words, the terminal structure 1 serves as a bridge for the electrical connection between the circuit board and the wire 2, and can be applied to electronic devices such as motors, fans, etc., but attention should be paid Yes, the present invention is not limited thereto.

As shown in FIG. 1 , the terminal structure 1 includes a base 11 , a connecting portion 12 , a clamping portion 13 and a first scraping portion 14 .

The base 11 can be used for electrical connection with the circuit board, so its material is conductive material, such as copper, iron, or alloys thereof. In addition, the base 1 can also be used as a device (such as a motor) for fixing the terminal structure 1 to it, so although in this embodiment, the shape of the base 11 is a flat plate structure as an example, but In different embodiments, the design may be based on actual needs or design considerations (such as the structure of the motor casing, the structure of the outer frame of the fan, etc.), and the present invention is not limited thereto.

The connecting portion 12 is connected to the base 11 and its material can be the same as that of the base 11 . The connecting part 12 can be a U-shaped structure, and it includes a first end 121 and a second end 122 , and the first end and the second end are respectively located at two vertices of the U-shaped structure.

The clamping portion 13 includes a first clamping plate 131 and a second clamping plate 132 . In this embodiment, the first clamping plate 131 is connected to the first end 121 of the connecting portion 12, and the second clamping plate 132 is connected to the second end 122 of the connecting portion 12, and a surface of the first clamping plate 131 is connected to the second clamping plate 132. A slit 133 is formed between one surface of the . Specifically, the first clamping plate 131 is formed by extending the first end 121 of the connecting portion 12 along the direction of the U-shaped opening, and the second clamping plate 132 is formed by extending the second end 122 of the connecting portion 12 along the direction of the U-shaped opening. form. The slit 133 can be used to clamp the wire 2, so in practice, the width of the slit 133 is better than the diameter of the wire 2. For example, when the diameter of the wire 2 is 0.9 mm to 1 mm, the width of the slit can be 0.4 mm. mm ~ 0.6 mm. In addition, it should be noted that the shapes of the first splint 131 and the second splint 132 may be different in implementation, and the present invention is not limited thereto.

The first scraping part 14 is connected to one side of the first clamping plate 131 and the first end 121 of the connecting part 12, and the first scraping part 14 has a first bevel 141, and the first bevel is formed by the top of the first clamping plate 131. The side is inclined toward the first end 121 , more specifically, in a direction away from the first clamping plate 131 . The function of the first scraping part 14 is that when the wire 2 is pressed into the slit 133 by an external force, the first bevel 141 will scrape off the insulating varnish covered on the surface of the wire 2 in contact with it, so that the wire The conductive material inside 2 is exposed, and can be electrically connected with the terminal structure 1, thereby achieving the purpose of electrically connecting with the circuit board. Furthermore, the first bevel 141 may have a rough microstructure (such as burr), so as to increase the resistance when the first bevel 141 rubs against the wire 2 , thereby increasing the insulating varnish of the wire 2 scraped by the first bevel 141 material capacity. In addition, the height of the second splint 2 may be greater than that of the first splint to increase the convenience of setting the wire 2 , but the present invention is not limited thereto.

In practice, the material of the clamping portion 13 and the first scraping portion 14 is selected from the same material as that of the base 11, such as copper, iron or alloys thereof, because of its ductility, it is not easy to cause permanent deformation due to external force. Lose the effect of clamping or scraping, of course, if there are special considerations, other materials with good electrical conductivity and ductility can also be used, which is not limited by the present invention.

Please refer to FIG. 2 , which is a schematic diagram of the combination of the terminal structure 1 and the wire 2 . After the wire 2 was pressed into the slit 133 by an external force, the insulating varnish part coated on the surface of the wire 2 has been scraped off by the first scraping part 14, that is, the part of the wire 2 without dots in Fig. The scraping part 21 a ), in practice, the scraping area can have different designs according to the current flow of the device to which the terminal structure 1 is applied, which is not limited in the present invention.

Please refer to FIG. 3 , which is a schematic diagram of a terminal structure 1 a according to another preferred embodiment of the present invention. The terminal structure 1 a is substantially the same as the terminal structure 1 , and only the different parts will be described below, and the same parts will not be repeated.

The terminal structure 1 a further includes a second scraping portion 15 opposite to the first scraping portion 14 . The second scraping structure is connected to one side of the second splint 132 and the second end 122 of the connecting portion 12, and the second scraping portion 15 has a second bevel 151, and the second bevel 151 is formed by the top of the second splint 132. The sides slope toward the second end 122 .

Compared with the terminal structure 1, the terminal structure 1a has a multi-faceted insulating varnish scraping ability, that is to say, the terminal structure 1a can scrape off a larger area of the insulating varnish covered on the surface of the wire, so that the wire can be scraped off. The current flow into the terminal structure 1a increases.

In addition, for the purpose of increasing the convenience of arranging wires, the terminal structure 1a may further include a first support portion 191 and a second support portion 192 . The first supporting part 191 is connected to the first splint 131, and the second supporting part 192 is connected to the second splint 132, and the second supporting part 192 extends away from the first supporting part 191, so that the first supporting part 191 and A carrying area can be formed between the second supporting parts 192 to carry wires. In practice, the first supporting portion 191 may also extend in a direction away from the second supporting portion 192 at the same time, which is not limited in the present invention.

Please refer to FIG. 4 , which is a schematic diagram of a terminal structure 1b according to another preferred embodiment of the present invention. The terminal structure 1b is substantially the same as the terminal structure 1a, and only the different parts will be described below, and the same parts will not be repeated.

The terminal structure 1 b further includes a third scraping portion 16 and a fourth scraping portion 17 .

The third scraping part 16 is connected with the other side of the first splint 131 and the first end 121 of the connecting part 12, and the third scraping part 16 has a third bevel 161, and the third bevel 161 is formed by the first splint. The top edge of 131 is inclined toward the first end 121 .

The fourth scraping part 17 is connected with the other side of the second splint 132 and the second end 122 of the connecting part 12, and the fourth scraping part 17 has a fourth bevel 171, and the fourth bevel 171 is formed by the second splint. The top edge of 132 slopes toward second end 122 .

In addition, in this embodiment, the terminal structure 1b further includes an accommodating portion 18 disposed inside the bottom end of the connecting portion 12 for accommodating the wire.

Compared with the terminal structure 1a, the terminal structure 1b further increases the area of the insulating varnish that can scrape off the wires. It is worth mentioning that in practice, the first scraping part 14, the second scraping part 15, the second scraping part The three scraping parts 16 and the fourth scraping part 17 can be combined arbitrarily according to the needs. Through the aforementioned combination and the length of the designed hypotenuse, the scraping area of the insulating varnish material of the required wire can be obtained. Preferably, the scraping The divided area is larger than the cross-sectional area of the wire.

In addition, based on the purpose of increasing the scraping ability of the first scraping portion 14, the first bevel can be jagged rather than smooth like the first bevel 141. Of course, in practice, the jagged bevel The side design can also be applied to the second beveled side 151 , the third beveled side 161 or the fourth beveled side 171 arbitrarily, which is not limited in the present invention.

To sum up the above, according to a terminal structure of the present invention, with the cooperation of the first scraping part, the insulating varnish on the surface of the wire can be scraped off when it is combined with the wire. In particular, compared with the existing ones, the present invention The area that can be scraped off is larger, so that the wire and the terminal structure can be electrically connected more effectively, and avoid poor contact that may occur when the conductive material of the wire is oxidized when the scraped area is small. On the other hand, when the conductive material of the wire There is a larger contact area with the terminal structure, which can effectively increase the maximum current flow.

The above descriptions are illustrative only, not restrictive. Any equivalent modifications or changes made without departing from the spirit and scope of the present invention shall be included in the scope of the appended claims.

Claims (9)

1. A terminal structure, characterized in that it comprises: a base; A connection part, connected to the base, the connection part is a U-shaped structure, and it includes a first end and a second end; A clamping part includes a first splint and a second splint, the first splint is connected to the first end of the connection part, the second splint is connected to the second end of the connection part, and the first splint A slit is formed between a surface and a surface of the second clamping plate, and the slit between the surfaces of the first clamping plate and the second clamping plate of the clamping portion clamps the wire in a forward direction; and A first scraping part is connected with one side of the first splint and the first end of the connecting part, the side edge of the first scraping part facing the second splint is a first hypotenuse, the The first bevel is inclined from the top edge of the first splint to the first end; the first scraping portion is parallel to the first splint, and the side of the first bevel facing the second splint has roughness A microstructure or a zigzag structure, the whole of the first hypotenuse facing the side of the second splint is located in the extending direction of the slit. 2. The terminal structure according to claim 1, further comprising: a first supporting part, connected to the first splint; and A second supporting part is connected with the second splint and extends away from the first supporting part. 3. The terminal structure according to claim 1, further comprising: A second scraping part is connected with the other side of the first splint and the first end of the connecting part, and the second scraping part has a second bevel, and the second bevel is formed by the first splint The top edge slopes toward the first end. 4. The terminal structure according to claim 1, further comprising: A second scraping part is connected with one side of the second splint and the second end of the connecting part, and the second scraping part has a second bevel, and the second bevel is formed by the second splint The top edge slopes toward the second end. 5. The terminal structure as claimed in claim 4, wherein the first scraping portion is opposite to the second scraping portion. 6. The terminal structure according to claim 4, further comprising: A third scraping part is connected with the other side of the first splint and the first end of the connecting part, and the third scraping part has a third bevel, and the third bevel is formed by the first splint The top edge slopes toward the first end. 7. The terminal structure according to claim 6, further comprising: A fourth scraping part is connected with the other side of the second splint and the second end of the connecting part, and the fourth scraping part has a fourth bevel, and the fourth bevel is formed by the second splint The top edge slopes toward the second end. 8. The terminal structure according to claim 1, further comprising: An accommodating part is arranged inside the bottom end of the connecting part. 9. The terminal structure according to claim 7, wherein the other side of the first bevel not facing the second clamping plate is jagged or smooth.