CN211126179U - Duty-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

Duty-saving circuit board connector

Technical Field

The utility model relates to an electric connector technical field especially relates to and is applied to a circuit board connector who occupies a duty and practices thrift.

Background

Circuit board connectors are increasingly used in the art to connect a plurality of circuit boards mounted with electronic components to each other. Such circuit board connectors generally include a base, a shell metal member attached to and insulated from the base for transmitting signals, and signal terminals connected to and insulated from the base and shielded from a ground pad of the circuit board and forming a complete ground outside the conductive terminals for preventing external electromagnetic interference. Referring to fig. 5, which shows a part of a housing metal part of a circuit board connector in the prior art, the housing metal part 400 includes a protective part 410 for increasing structural strength, and the plug metal part 400 further includes a solder fixing part 420 for solder-connecting with a circuit substrate (not shown), wherein the solder fixing part 420 is formed by extending along an end of a negative side of the protective part 410 in the first direction 1 and is substantially perpendicular to the protective part 410, so that a pad contact area of the plug metal part 400 and the circuit substrate (not shown) is increased, and thus, soldering firmness of the plug metal part 400 and the circuit substrate is improved.

The disadvantages are as follows: although the structure has good structural strength, the distance between the welding fixing parts of the two plug metal parts on the plug base body and the corresponding welding pads of the circuit substrate is relatively long, so that the area occupied by the circuit substrate is too large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fill circuit board connector who occupies a space and practice thrift, under the better prerequisite of assurance structural strength, realize occupying circuit substrate's space area littleer.

In order to realize the purpose, the utility model discloses the technical scheme who takes is:

a space-saving circuit board connector is provided, 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.

Preferably, the shield portion and the electrical connection portion are plate-shaped.

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

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

Preferably, the notch is a U-shaped notch.

Preferably, the contact portion is plate-shaped, and the contact portion is provided with a catching groove.

Preferably, the connector further includes side connection portions extending vertically downward along both ends of the main body portion in the second direction, and the side connection portions are disposed on an outer side surface of the plug base body in the second direction and electrically connected to the circuit board.

The beneficial effects of the utility model reside in that: compared with the prior art, the main body part and the protective part of the plug metal part of the utility model are arranged on the outer surface of the plug base body, when the space-saving circuit board connector is inserted with the other connector (or called socket connector) matched and jointed with the circuit board connector, the abrasion of the plug base body made of insulating materials directly subjected to external force can be reduced or avoided; in addition, the protection part is formed by extending along the end part of the positive side of the main body part in the first direction and is arranged perpendicular to the end part of the main body part, and the electric connection part is formed by extending along the end part of the protection part in the negative side of the first direction, so that the distance between two required pads corresponding to the electric connection parts of the two plug metal parts configured in the way can be obviously reduced, the area occupied by the circuit substrate is reduced, and the circuit substrate is more miniaturized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a perspective view of the plug metal member of the present invention;

fig. 3 is a perspective view of another perspective view of the plug metal member of the present invention;

fig. 4 is a comparison graph comparing the distance between two corresponding pads required by the plug metal piece of the present invention with the prior art;

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

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention 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. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It is to 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, among the first direction 1, the second direction 2, and the third direction 3, a direction indicated by an arrow in fig. 1 is defined as "positive direction", and a direction opposite to the direction indicated by the arrow in fig. 1 is positioned as "negative direction"

As shown in fig. 1, the space-saving circuit board connector 500 according to an embodiment of the present invention includes a plug base 510, a plug signal elastic contact 520 and a plug metal member 530, wherein a coupling cavity is disposed in the middle of the plug base 510 to provide a receiving space when the plug base is inserted into a mating connector (or called a socket connector), the plug metal member 530 is disposed at both ends of the plug base 510, and the plug signal elastic contact 520 and the plug metal member 530 are fixed to the plug base 510 by insert-molding (insert-molding).

The specific structure and the fitting relationship of the header base 510 and the header signal elastic contact 520 can refer to the prior art (CN 208923402U) to disclose a space-saving header base and header terminal in a circuit board connector. And thus the description thereof is omitted.

As shown in fig. 2 to 3, the plug metal fitting 530 includes a main body portion 531, a contact portion 532, and a guard portion 533.

The body portion 531 has a plate-like shape and is disposed on a surface of the plug base 510. The contact portion contacts the socket power spring contact to allow the plug metal piece 530 to be electrically connected to the socket power spring contact in the related art.

A shield portion 533, the shield portion 533 extending along an end of the main body 531 on the forward side of the first direction, the shield portion 533 being perpendicular to the main body 531, the shield portion 533 being disposed on a corresponding inner side of the plug base body engagement cavity in the first direction, an end of the shield portion 533 being electrically connected to a circuit substrate (not shown), for example, an end of the shield portion 533 being soldered to a pad of the circuit substrate.

Compared with the prior art, the body 531 and the guard 533 of the plug metal fitting are covered on the surface of the plug base 510, so that the space-saving circuit board connector 500 can withstand abrasion caused by repeated insertion impact many times by the cooperation of the body 531 and the guard 533, the abrasion of the plug base 510 is reduced, and the reliability of the space-saving circuit board connector 500 is improved. The protection portion 533 is plate-shaped, so that a guiding effect can be achieved, that is, the circuit board connector 500 with reduced guiding space is inserted into the socket connector, and the insertion is convenient; in addition, the shield 533 extends along the end portion of the main body 531 on the first direction front side, and the shield 533 is perpendicular to the main body 531, so that the distance W2 between the two pads corresponding to the shield 533 of the two plug metals is smaller than the distance W1 in the related art, as shown in fig. 4, and the area occupied by the pads on the circuit board is reduced, thereby making the circuit board more compact.

Preferably, as shown in fig. 2 to 3, the plug metal member 530 further includes an electrical connection portion 534, the electrical connection portion 534 is formed by extending along an end of the protection portion 533, the electrical connection portion 534 is perpendicular to the protection portion 533, the electrical connection portion 534 is disposed on a surface of the plug base 510, and the electrical connection portion is in a plate shape. The electrical connection portion 534 is electrically connected to the circuit substrate, for example, an end portion of the electrical connection portion 534 is soldered to a pad of the circuit substrate. Thus, the two plug metal pieces 530 are coated on the two ends of the plug base 510 in a C-shape, so as to enhance the overall structural strength of the circuit board connector 500, and the electrical connection portion 534 is electrically connected with the whole pad of the circuit board, thereby increasing the contact area with the pad of the circuit board and improving 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, so that the contact area with the pad of the circuit substrate is further increased, and the electrical conduction capability is improved.

The space-saving circuit board connector 500 is formed by insert molding, and the excess material for connection is cut off after molding, and burrs are generated after each cutting off. In order to reduce burrs generated after the excess material at the position is cut off and to facilitate cutting off, as shown in fig. 2, a notch 5341 is provided at an end of the electrical connection portion 534 along the negative direction of the first direction, and preferably, the notch 5341 is a U-shaped notch, and the notch 5341 reduces a cutting area, thereby reducing the generation of burrs and facilitating cutting off.

Preferably, the contact portion 532 is formed by extending along an end portion of the negative side of the first direction of the main body portion, the contact portion 532 is perpendicular to the main body portion 531, the contact portion 532 is provided on the surface of the plug base body 510, the contact portion 532 is in contact with the receptacle power elastic contact, and the contact portion 532 is in a plate-like shape. Thus, the plug metal member is conducted with the socket electric power elastic contact member of the prior art through the contact portion 532, and at the same time, the range of the plug metal member 530 covering the plug base body 510 is increased, and the overall structural strength of the space-saving circuit board connector 500 is further enhanced. As shown in fig. 2, the contact portion 532 is provided with a locking groove 5321, which is more compact when inserted into a receptacle power spring contact provided with a protrusion.

As shown in fig. 2 to 3, the plug metal fitting 530 further includes side connection portions 535, the side connection portions 535 are formed by extending along two ends of the main body portion in the second direction, the side connection portions 535 are perpendicular to the main body portion 531, and the side connection portions 535 are disposed on the surface of the plug base body 510. The side connection portions 535 are electrically connected to the circuit substrate, for example, the end portions of the side connection portions 535 are soldered to pads of the circuit substrate. In this way, the contact area of the plug metal fitting 530 with the pad of the circuit substrate is increased by the side connection portion 535, and the electric conductivity is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should 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.

Images