CN211126179U - A space-saving circuit board connector - Google Patents

Abstract

The utility model discloses a fill circuit board connector of duty saving, include: a plug base body having a joint inner cavity; a plug signal elastic contact; the plug metal parts are arranged at the two ends of the plug base body; wherein the plug metal piece includes: a main body portion provided on an outer surface of the plug base body; a contact portion contacting the receptacle power elastic contact; the protection part is formed by extending the end part of the positive side of the first direction of the main body part, the protection part is mutually vertical to the main body part, the protection part is arranged on the outer surface of the plug base body, and the end part of the protection part is electrically connected with the circuit substrate. Compared with the prior art, the area of the circuit substrate occupied by the bonding pad is reduced.

Description

A space-saving circuit board connector

technical field

The utility model relates to the technical field of electrical connectors, in particular to a circuit board connector which is applied to a space saving.

Background technique

Circuit board connectors are increasingly used in the related art to connect a plurality of circuit substrates on which electronic components are mounted to each other. This type of circuit board connector usually includes a base body, a housing metal piece connected to the base body and insulated by it, and a signal terminal for transmitting signals, and the housing metal piece is connected to the ground pad of the circuit substrate. It plays a shielding role and forms a complete ground on the outside of the conductive terminal to prevent external electromagnetic interference. FIG. 5 shows a part of the shell metal part of the circuit board connector in the prior art, the shell metal part 400 includes a protection part 410 to increase the strength of the structure, the plug metal part 400 also includes a protective part 410 . The soldering fixing portion 420 is connected to the circuit board (not shown in the figure) by soldering. The soldering fixing portion 420 is formed along the end of the shielding portion 410 on the negative side of the first direction 1, and is approximately the same as the end portion of the protective portion 410. The protective parts 410 are perpendicular to each other, thus increasing the pad contact area between the plug metal part 400 and the circuit substrate (not shown in the figure), thereby improving the welding firmness of the plug metal part 400 and the circuit substrate.

The disadvantage is that although this structure has good structural strength, the distance between the pads of the circuit substrate corresponding to the welding and fixing parts of the two plug metal parts on the plug base body is relatively far, so that the circuit substrate is occupied. area is too large.

Utility model content

The purpose of the utility model is to provide a circuit board connector with space saving, which can occupy a smaller space area of the circuit board under the premise of ensuring better structural strength.

In order to achieve the above-mentioned purpose, the technical scheme that the utility model takes is:

Provided is a space-saving circuit board connector, comprising: a plug base having an engagement cavity;

A plug signal elastic contact piece; a plug metal piece, both ends of the plug base body are provided with the plug metal piece; wherein, the plug metal piece includes: a main body part, the main body part is arranged outside the plug base body on the surface; a contact part, which is vertically bent downward along the end part of the main body part on the negative side of the first direction, and is arranged on the outer side of the plug base body; a protection part, the protection part is along the The end portion of the main body portion on the positive side in the first direction is vertically bent downward, the guard portion and the main body portion are perpendicular to each other, and are arranged in the first direction of the plug base engaging cavity The corresponding inner surface of the protective part; an electrical connection part, the electrical connection part extends along the negative side of the first direction along the end of the protection part, and is used for electrical connection with the circuit substrate.

Preferably, the protective portion and the electrical connection portion are in the shape of a plate.

Preferably, the width of the electrical connection portion gradually increases along the negative direction of the first direction.

Preferably, an end of the electrical connection portion along the negative side of the first direction is provided with a notch.

Preferably, the notch is a U-shaped notch.

Preferably, the contact portion is in the shape of a plate, and the contact portion is provided with a slot.

Preferably, it further comprises a side connecting portion, the side connecting portion is formed by vertically extending downward along both ends of the main body portion in the second direction, and the side connecting portion is arranged outside the plug base body in the second direction. On the side surface, it is used for electrical connection with the circuit substrate.

The beneficial effect of the present utility model is that compared with the prior art, the main body portion and the protective portion of the plug metal piece of the present utility model are arranged on the outer surface of the plug base body, and when the space-saving circuit board connector is matched and engaged therewith When the counterpart connector (or the socket connector) is inserted, it can reduce or avoid the direct wear of the plug base made of insulating material by external force; in addition, the protection part is a positive direction along the first direction of the main body part The ends of the sides extend and are arranged perpendicular to each other, and the electrical connection portion is formed along the end of the protection portion and extends along the negative side of the first direction. In this way, the two plug metal parts configured as above The distance between the two required pads corresponding to the electrical connection parts can be significantly reduced, the area occupied by the circuit substrate is reduced, and the circuit substrate is more miniaturized.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

2 is a perspective view of a plug metal part of the present invention;

3 is a perspective view of the plug metal fitting of the present invention from another perspective;

4 is a comparison diagram of the distance between the corresponding two pads required by the plug metal part of the present invention compared with the prior art;

FIG. 5 is a schematic structural diagram of a plug metal part in the prior art.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation disclosed below. .

It should be noted that, in the following description, as shown in FIG. 1, the direction of each component is indicated by using an orthogonal coordinate system. A first direction 1 , a second direction 2 orthogonal to the first direction 1 , and a third direction 3 orthogonal to the first direction 1 and the second direction 2 are defined as three directions in an orthogonal coordinate system.

Further, in the first direction 1, the second direction 2 and the third direction 3, the direction indicated by the arrow in FIG. 1 is defined as “forward”, and the direction opposite to the direction indicated by the arrow in FIG. 1 is defined as the “forward direction”. Positioning as "negative"

As shown in FIG. 1 , the space-saving circuit board connector 500 provided by an embodiment of the present invention includes a plug base body 510 , a plug signal elastic contact piece 520 and a plug metal piece 530 , the plug base body 510 is provided with a joint in the middle The inner cavity is used to provide a accommodating space when it is inserted into the counterpart connector (or socket connector). Both ends of the plug base 510 are provided with the plug metal parts 530 and the plug signal elastic contact parts 520 And the plug metal piece 530 is fixed together with the plug base 510 by insert-molding.

For the specific structure and mating relationship of the plug base 510 and the plug signal elastic contact 520, reference may be made to the prior art (CN 208923402 U), which discloses a plug base and plug terminals in a space-saving circuit board connector. Therefore, its description is omitted.

As shown in FIG. 2 to FIG. 3 , the plug metal piece 530 includes a main body part 531 , a contact part 532 and a protection part 533 .

The main body portion 531 has a plate-like shape and is provided on the surface of the plug base body 510 . The contact portion is in contact with the socket power elastic contact piece, so as to realize that the plug metal piece 530 is energized with the socket power elastic contact piece in the prior art.

The guard portion 533 is formed by extending along the end portion of the main body portion 531 on the positive side in the first direction, the guard portion 533 and the main body portion 531 are perpendicular to each other, and the guard portion 533 Disposed on the corresponding inner side in the first direction of the plug base engaging cavity, the end of the protective portion 533 is electrically connected to the circuit substrate (not shown in the figure), for example, the end of the protective portion 533 The part is soldered to the pad of the circuit board.

Compared with the prior art, the main body part 531 and the protective part 533 of the plug metal part cover the surface of the plug base body 510 , so through the cooperation of the main body part 531 and the protective part 533 , the circuit board connector 500 can be saved in space. The wear and tear caused by repeated mating impacts can be endured, the wear of the plug base 510 is reduced, and the reliability of the circuit board connector 500 with space saving is improved. The protective portion 533 is in the shape of a plate, which can achieve a guiding function, that is, guide the circuit board connector 500 that saves space to be inserted into the socket connector, which is convenient for insertion; in addition, the protective portion 533 is along the main body. The end portion on the positive side in the first direction of the plug portion 531 is formed by extending. The guard portion 533 and the main body portion 531 are perpendicular to each other, as shown in FIG. The distance W2 between the pads is smaller than the distance W1 in the prior art, which reduces the area of the circuit substrate occupied by the pads and makes the circuit substrate more miniaturized.

Preferably, as shown in FIG. 2 to FIG. 3 , the plug metal member 530 further includes an electrical connection portion 534 , and the electrical connection portion 534 is formed by extending along the end of the protection portion 533 . The electrical connection portion 534 and the protective portion 533 are perpendicular to each other, the electrical connection portion 534 is disposed on the surface of the plug base 510 , and the electrical connection portion has a plate shape. The electrical connection portion 534 is electrically connected to the circuit substrate, for example, the end of the electrical connection portion 534 is soldered to a pad of the circuit substrate. In this way, the two plug metal parts 530 are covered on both ends of the plug base body 510 in a C-shaped manner, so as to enhance the overall structural strength of the circuit board connector 500 with space saving. It can improve the contact area of the pad with the circuit substrate and improve the electrical conductivity. As shown in the figure, the width of the electrical connection portion gradually increases along the negative direction of the first direction 1, which further increases the contact area with the pad of the circuit substrate and improves the electrical conductivity.

The space-saving circuit board connector 500 is formed by insert molding. After molding, the residual material for connection needs to be cut off, and there will be burrs after each cutting. The electrical connection portion 534 along the negative side of the first direction 1 will generate residual material after being formed. In order to reduce the burr and easy to remove the residual material at this part, as shown in FIG. 2 , the The end of the electrical connection portion 534 along the negative side of the first direction is provided with a notch 5341. Preferably, the notch 5341 is a U-shaped notch. The notch 5341 reduces the cutting area, thereby reducing the generation of burrs and making it easy to cut .

Preferably, the contact portion 532 is formed by extending along the end portion of the main body portion on the negative side of the first direction, the contact portion 532 and the main body portion 531 are perpendicular to each other, and the contact portion 532 is arranged at On the surface of the plug base 510 , the contact portion 532 is in contact with the electrical elastic contact member of the socket, and the contact portion 532 is in the shape of a plate. In this way, the plug metal piece can be electrically connected to the electrical elastic contact piece of the socket in the prior art through the contact portion 532 , and at the same time, the range of the plug metal piece 530 covering the plug base 510 is increased, and the circuit board connector 500 with space saving is further enhanced. overall structural strength. As shown in FIG. 2 , the contact portion 532 is provided with a card slot 5321 , so that the contact portion 532 is more compact when it is inserted into the socket power elastic contact member provided with the protruding portion.

As shown in FIG. 2 to FIG. 3 , the plug metal piece 530 further includes side connecting parts 535 , and the side connecting parts 535 are formed by extending from both ends of the main body in the second direction. 535 and the main body portion 531 are perpendicular to each other, and the side connecting portion 535 is disposed on the surface of the plug base 510 . The side connecting portion 535 is electrically connected to the circuit substrate, for example, the end of the side connecting portion 535 is welded to the pad of the circuit substrate. In this way, the contact area of the plug metal member 530 with the pad of the circuit substrate is increased through the side connecting portion 535, and the electrical conductivity is improved.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (7)

1. A space-saving circuit board connector, comprising:

a plug base body provided with a joint inner cavity;

a plug signal elastic contact;

the plug metal parts are arranged at the two ends of the plug base body;

wherein the plug metal piece includes:

a main body portion provided on an outer surface of the plug base body;

a contact portion formed by bending an end portion of the main body portion on a negative side in the first direction downward and vertically, the contact portion being provided on an outer side surface of the plug base body;

the protective part is formed by bending the end part of the positive side of the main body part downwards vertically, is mutually vertical to the main body part and is arranged on the corresponding inner side surface of the plug base body joint inner cavity in the first direction;

and the electrical connection part extends along the negative side of the end part of the protection part along the first direction and is used for being electrically connected with the circuit substrate.

2. A space-saving circuit board connector as claimed in claim 1, wherein: the protective part and the electrical connection part are plate-shaped.

3. A space-saving circuit board connector as claimed in claim 2, wherein: the width of the electrical connection portion gradually increases along a negative direction of the first direction.

4. A space-saving circuit board connector as claimed in claim 2, wherein: the electric connection part is provided with a notch along the end part of the negative direction side of the first direction.

5. A space-saving circuit board connector as claimed in claim 4, wherein: the notch is a U-shaped notch.

6. A space-saving circuit board connector as claimed in claim 2, wherein: the contact part is plate-shaped and provided with a clamping groove.

7. A space-saving circuit board connector as claimed in any one of claims 1-6, wherein: the side connection part is formed by vertically extending downwards along two ends of the main body part in the second direction, and is arranged on the outer side surface of the plug base body in the second direction and used for being electrically connected with the circuit substrate.

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