CN2672905Y - Board-to-Board Electrical Connectors - Google Patents

Abstract

A board-to-board electrical connector comprising: the connector comprises a female seat body, a male seat body, a plurality of female terminals and a plurality of male terminals; a concave part is formed in the middle of the female seat body, and at least one side of the concave part is provided with a plurality of female terminal grooves which are arranged at intervals; the plurality of female terminals are assembled in the female terminal groove of the female seat body, and each female terminal comprises an elastic arm arranged in the female terminal groove, a fixing part fixed in the female terminal groove and a pin part; the male seat body is assembled in the concave part of the female seat body and is provided with a plurality of male terminal grooves which are arranged at intervals, and the lower sections of the male terminal grooves are inwards concave to form a groove; the male terminal is assembled in the male terminal groove and comprises an elastic arm, a fixing part and a pin part. The utility model discloses can make public, female pedestal have good electricity connection effect, can make the equipment convenient and save the material of female terminal.

Description

Board-to-Board Electrical Connectors

【Technical field】

The utility model relates to an electrical connector, in particular to a board-to-board electrical connector.

【Background technique】

Please refer to Fig. 1 and Fig. 2, it is a conventional board-to-board electrical connector, which is used to connect two circuit boards, and it includes:

A female seat body 10, which is provided with a middle part 11 and a peripheral side part 12, two concave parts 13 are formed between the middle part 11 and the peripheral side part 12, and the peripheral side part 12 is provided with female terminal pressing grooves 14 arranged at intervals, Two sides of the middle part 11 are provided with female terminal movable slots 15 arranged at intervals.

A plurality of female terminals 17, which are assembled on the female base body, are formed by cutting metal sheets: an elastic arm 18, which is bent from bottom to top, can bounce in the movable groove 15 of the female terminal and set There is a contact point 19 protruding out of the movable groove 15 of the female terminal; a fixed part 21, which extends from bottom to top, and is inserted into the female terminal pressing groove 14 for fixing; and a pin part 20, which is perpendicular to the fixed part and It extends out of the female seat body 10 horizontally.

A male seat body 23 has a recess 24 in the middle, and a plurality of male terminal grooves 25 arranged at intervals on both sides thereof. The middle part 11 of the female seat body is inserted into the concave part 24 in the middle of the male seat body.

A plurality of male terminals 28, which are assembled in the male terminal groove 25 of the male seat body 23, are formed by bending a metal sheet: a fixing part 29, which is inserted into the male terminal groove 25 for fixing; a contact piece 30, It is connected to one end of the fixing part 29, which is superimposed on the fixing part 29 from bottom to top;

Please refer to Fig. 2, after the male base body 23 is joined to the female base body 10, the contact point 19 of the female terminal 17 elastically contacts the contact piece 30 of the male terminal 28 to be electrically connected, so that the pin portion 31 of the male terminal is connected to the A circuit board 33, and the pin portion 20 of the female terminal is connected to the B circuit board 34, that is, the A circuit board 33 and the B circuit board 34 are electrically connected.

The above conventional board-to-board electrical connectors still have the following disadvantages:

1. The female terminal is made of the following material, not designed to be continuously bent, so the terminal is in the form of loose pieces, and cannot be arranged into a continuous terminal type according to the terminal spacing. Such terminals are not only very expensive in terminal manufacturing material and assembled in pieces is very labor-intensive.

2. The male terminal does not have elasticity. The elasticity of the contact between the male and female terminals comes from the female terminal. Such a poor connection will cause poor contact if the elasticity of the female terminal is fatigued.

【Content of utility model】

The purpose of this utility model is to provide a board-to-board electrical connector, which can make the male and female bases have a good electrical connection effect, avoid the elastic fatigue of the male and female terminals, facilitate assembly and save the cost of the female terminals. material, and when the male seat body is connected to the circuit board, the male terminal cannot be separated from the male seat body together with the circuit board from above.

In order to achieve the above purpose, the utility model provides a board-to-board electrical connector, which includes: a female seat body, a male seat body, multiple female terminals, and multiple male terminals; it is characterized in that:

A recess is formed in the middle of the female base body, and at least one side thereof is provided with a plurality of female terminal grooves arranged at intervals;

The plurality of female terminals are assembled in the female terminal groove of the female base body. The female terminal is formed by bending a metal sheet. The female terminal includes: an elastic arm, which is elastically arranged in the female terminal groove There is a contact protruding out of the female terminal groove; a fixing part, which is fixed in the female terminal groove; and a leg part, which protrudes out of the female terminal body;

The male base body is assembled in the concave part of the female base body, and at least one side thereof is provided with a plurality of male terminal slots arranged at intervals, and the lower section of the male terminal slots is concaved inward to form a groove; and

The plurality of male terminals are assembled in the male terminal groove of the male seat body. The male terminal is formed by bending a metal sheet. The male terminal includes: an elastic arm, which is elastically arranged on the male terminal There is a contact protruding out of the male terminal groove inside the terminal groove, and the male terminal is provided with a protruding arc portion opposite to the protruding direction of the contact point, and the arc portion is located in the groove of the male terminal groove, the male terminal The contact point is electrically connected with the elastic arm of the female terminal; a fixing part is fixedly arranged in the male terminal groove; and a connecting leg part is extended out of the male seat.

Preferably, an elastic card protrudes from the fixing part of the male terminal, and the elastic card is fixed against the groove of the male terminal.

Preferably, the arc portion of the elastic arm of the male terminal protrudes from one side of the fixing portion by more than 1/4 circle.

Preferably, the female terminal groove is provided with a stop wall to separate the female terminal groove into a movable groove and a tight groove; the elastic arm of the female terminal is arranged in the movable groove extending from bottom to top, and the The fixing part includes a first piece and a second piece that are folded and closed. The first piece and the second piece extend from bottom to top and are inserted into the pressing groove to be fixed tightly. The lower end of the first piece is connected to the elastic arm. The lower end of the second piece is connected to this pin.

Preferably, the pin portion of the female terminal extends horizontally out of the body of the female base, and the pin portion of the male terminal extends horizontally out of the body of the male base.

Preferably, an elastic card protrudes from the fixing part of the female terminal, and the elastic card is stuck in the groove of the female terminal and fixed.

Preferably, the end of the elastic arm of the female terminal is bent towards the blocking wall, and the end of the elastic arm of the male terminal is close to the fixing portion of the male terminal. In this way, the elastic arms of the male and female terminals will not be elastically fatigued or deformed due to excessive compression.

In addition, the contact point of the spring arm of the male terminal is located below the contact point of the spring arm of the female terminal, so that when the male and female base bodies are to be pulled apart from each other, the protruding contact of the male terminal and the protruding contact of the female terminal should be aligned. When they are separated, they will interfere with each other, and it takes a considerable pulling force to separate, so the two have a good connection effect.

The above and other objectives, advantages and features of the present invention can be more clearly understood from the following detailed description of the preferred embodiments with reference to the drawings.

【Description of drawings】

FIG. 1 is a schematic exploded cross-sectional view of a conventional electrical connector.

FIG. 2 is a schematic cross-sectional view of a conventional electrical connector in use.

Fig. 3 is a cross-sectional exploded view of a preferred embodiment of the present invention.

Fig. 4 is a sectional combined view of a preferred embodiment of the utility model.

Fig. 5 is a three-dimensional assembled view of a preferred embodiment of the utility model.

Fig. 6 is a perspective view of a female seat body of a preferred embodiment of the utility model.

Fig. 7 is an upside-down perspective view of the male seat body in a preferred embodiment of the present invention.

Fig. 8 is a cross-sectional view of a preferred embodiment of the utility model in use.

Fig. 9 is a sectional view of the use state of the preferred embodiment of the utility model.

【Detailed ways】

Please refer to Fig. 3, Fig. 4 and Fig. 5, the utility model includes: a female seat body 40, a plurality of female terminals 50, a male seat body 60, and a plurality of male terminals 70, wherein:

Please refer to FIG. 6, a recess 41 is formed in the middle of the female base body 40, and a plurality of female terminal grooves 42 arranged at intervals are arranged on both sides thereof. The groove 45 is formed with a lower surface 46 at both ends.

A plurality of female terminals 50 are assembled in the female terminal groove 42 of the female base body 40, which is formed by bending a metal sheet: an elastic arm 51, which extends from bottom to top and bounces in the movable groove 44, its Near the end 52 is provided with a contact point 53 protruding out of the movable groove 44 of the female terminal groove, and its end 52 is bent towards the retaining wall 43; a fixed part 54 includes a first piece 55 folded in two and The second piece 56 extends from bottom to top and is inserted into the pressing groove 45 to be tightly fixed. The lower end of the first piece 55 is connected to the elastic arm 51, and the second piece 56 is pierced to punch out a protruding elastic card. 57 is thereby locked against the pressing groove 45; and a leg portion 58, which is connected to the lower end of the second piece 56 of the fixing portion 54, and extends out of the female seat body 40 horizontally.

Please refer to FIG. 7 , the male seat body 60 is assembled in the concave portion 41 of the female seat body 40, and a plurality of male terminal grooves 61 arranged at intervals are arranged on both sides, and the lower section of the male terminal groove 61 is concaved inward to form a groove. 62 , two ends of which are provided with lugs 63 , and the two lugs 63 are joined to the lower surfaces 46 at both ends of the female seat body 40 .

A plurality of male terminals 70 are assembled in the male terminal groove 61 of the male seat body 60, which is formed by bending a metal sheet: an elastic arm 71, which can bounce in the male terminal groove 61 and is provided with a contact point 72 protruding Out of the male terminal groove 61, a protruding arc portion 73 is provided opposite to the protruding direction of the contact point 72. The arc portion 73 exceeds 1/4 circle and is accommodated in the groove 62 of the male terminal groove 61. The contact point 72 is electrically connected to the spring arm 51 of the female terminal 50, and is located below the contact point 53 of the female terminal; a fixing part 74 is fixed to the male terminal groove 61, and a protruding elastic card 75 is pierced and punched out so as to It is fixed against the male terminal slot 61 , the arc portion 73 is inwardly located in the groove 62 than the fixed portion; and a leg portion 77 extends out of the male seat body 60 horizontally.

Please refer to FIG. 8, after the male base body 60 is joined to the female base body 40, the contact point 72 of the male terminal 70 elastically contacts the elastic arm 51 of the female terminal 50 and is located below the contact point 53, so that the pin portion 77 of the male terminal is connected to the A circuit board 33, and the pin portion 58 of the female terminal is connected to the B circuit board 34, that is, the A circuit board 33 and the B circuit board 34 are electrically connected.

The utility model has the following advantages:

1. The fixed part 54 of the female terminal 50 is formed by folding the first piece 55 and the second piece 56. In the design, the female terminal 50 can be formed by bending a metal sheet, so it can be arranged into a continuous terminal type according to the terminal spacing. In this way, the terminals not only save material in terminal manufacturing, but also can be assembled in a row on the female body, which saves labor.

2. The elastic arm 71 of the male terminal 70 has a circular arc portion 73 that protrudes toward the inner side of the fixing portion 74, so that the length of the elastic arm 71 can be increased to have good elasticity, so the elastic arm 71 does not need to form a wide winding The ring can have sufficient elastic length, so the end 78 of the elastic arm 71 can be very close to the fixed portion 74, which can protect the terminal, and the elastic arm of the male terminal 70 will not be elastically fatigued or deformed due to excessive compression.

3. The end 52 of the elastic arm of the female terminal 40 is bent close to the blocking wall 43 to protect the female terminal 40, and the elastic arm of the female terminal 40 will not be elastically fatigued or deformed due to excessive compression.

4. Both the male terminal and the female terminal have good elasticity, so the electrical connection between the two is very reliable, and neither of them will cause elastic fatigue or deformation due to excessive compression, so the reliability of the electrical connection can be ensured.

5. Please refer to Figure 8, the protruding contact point 72 of the male terminal 70 is located below the protruding contact point 53 of the female terminal 50, please refer to Figure 9, so when the male and female base bodies are to be pulled apart from each other, the male terminal 70 The protruding contact 72 and the protruding contact 53 of the female terminal 50 will interfere with each other when they are to be separated, and a considerable pulling force is required to separate, so the two have a good connection effect.

6. The male terminal 70 is assembled into the male seat body 60 from bottom to top. Therefore, as shown in FIG. Seat 60.

The specific embodiment proposed in the detailed description of the preferred embodiment is only for the ease of explaining the technical content of the present utility model, and the utility model is not limited to this embodiment in a narrow sense, and the utility model can also be implemented in various changes .

Claims (9)

1. a plate is to the electric connector of plate, and it includes: a mother seat body, a male seat body, a plurality of female terminal, a plurality of male terminal; It is characterized in that:

Form a recess in the middle of this mother seat body, its at least one side is provided with a plurality of spaced female end pilot trench;

These a plurality of female terminals are the female end pilot trench that are assembled in this mother seat body, and this female terminal is to be bent into sheet metal, and this female terminal comprises: an elastic arm, but this elastic arm springing be located in this female end pilot trench and be provided with a contact and protrude outside this female end pilot trench; One fixed part, this fixed part are to be fixed in the female end pilot trench; And a pin portion, this pin portion stretches out outside this mother seat body;

This male seat body is the recess that is assembled in this mother seat body, and its at least one side is provided with a plurality of spaced male end pilot trench, and the hypomere of this male end pilot trench concaves and forms a groove; And

These a plurality of male terminals, it is the male end pilot trench that is assembled in this male seat body, this male terminal is to be bent into sheet metal, this male terminal includes: an elastic arm, protrude outside this male end pilot trench but be located to this elastic arm springing in this male end pilot trench and be provided with a contact, this male terminal is provided with an arc sections of protruding in contrast to the protrusion direction of this contact, and this arc sections is positioned at the groove of male end pilot trench, and the contact of this male terminal is electrically connected with the elastic arm of female terminal; One fixed part, this fixed part are to be fixed at this male end pilot trench; And a pin portion, it is that to stretch out this male seat external.

2. plate as claimed in claim 1 is characterized in that the electric connector of plate: the fixed part of this male terminal protrudes establishes an elastic card, and this elastic card and this male end pilot trench push against fixing.

3. plate as claimed in claim 1 is characterized in that the electric connector of plate: the arc sections of the elastic arm of this male terminal is to protrude fixed part one side to surpass 1/4 circle.

4. plate as claimed in claim 1 is characterized in that the electric connector of plate: this female end pilot trench is provided with retaining wall and this female end pilot trench is separated into loose slot and clamping trough; The elastic arm of this female terminal is to be located at this loose slot with from bottom to top extending, the fixed part of this female terminal comprises superimposed first and second of doubling, this first and second is from bottom to top extended and inserts this clamping trough packing and fix, this lower end of first connects this elastic arm, and this lower end of second connects this pin.

5. plate as claimed in claim 4 is characterized in that the electric connector of plate: the not end of the elastic arm of this female terminal is approaching to this retaining wall bending.

6. plate as claimed in claim 1 is characterized in that the electric connector of plate: the pin portion of this female terminal is level stretches out outside the mother seat body, and the pin portion of this male terminal is level, and to stretch out male seat external.

7. plate as claimed in claim 1 is characterized in that the electric connector of plate: the fixed part of this female terminal protrudes establishes an elastic card, and this elastic card fastens in female end pilot trench internal fixation.

8. plate as claimed in claim 1 is characterized in that the electric connector of plate: the contact of the elastic arm of this male terminal is positioned at the contact below of the elastic arm of this female terminal.

9. plate as claimed in claim 1 is characterized in that the electric connector of plate: the end of the elastic arm of this male terminal is near the fixed part of this male terminal.

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