CN106159519A - Electric connector - Google Patents

Abstract

The invention discloses an electrical connector, which includes an insulating body and a plurality of terminals. Each of the plurality of terminals has a first metal layer and a second metal layer on a bottom side of the first metal layer; and the first metal layer has a first electrical contact, the first metal layer The second metal layer has a second electrical contact, and the first electrical contact and the second electrical contact are arranged to be adapted to simultaneously contact corresponding mating terminals. In the present invention, since each terminal has two metal layers stacked up and down, the conductive area of the entire terminal is increased, the resistance of the entire terminal is reduced, and the current transmission capacity of the terminal is improved, thereby enabling transmission of large currents. In addition, the two metal layers of each terminal have electrical contacts with the mating terminals of the external circuit, therefore, the two metal layers of each terminal can be in electrical contact with the mating terminals at the same time, reducing the contact resistance of the terminals and improving The electrical contact reliability of the terminal is improved.

Description

electrical connector

technical field

The invention relates to an electrical connector, in particular to a battery connector.

Background technique

A battery connector generally includes an insulating body and a plurality of terminals. A plurality of terminal accommodating grooves are formed in the insulating body, and the plurality of terminals are respectively held in the plurality of terminal accommodating grooves. In the prior art, the terminals of the battery connector mainly include the following types: pogopin type terminals, leaf type terminals and snake contact type terminals.

For the existing battery connectors with pogo pin terminals, there are disadvantages such as unreliable electrical contact, small current that can be transmitted, the overall height of the electrical connector is too high, and the price is too expensive. For the existing battery connectors with blade-shaped terminals, there are disadvantages such as the small current that can be transmitted, and the overall height of the electrical connector is too high. For the existing battery connector with serpentine terminals, although the overall height of the electrical connector can be reduced, it cannot transmit large current.

In order to adapt to the development trend of miniaturization of electronic mobile communication equipment, for battery connectors used in these electronic mobile communication equipment, customers hope that the thinner the thickness, the smaller the volume, the better, the larger the battery capacity, the faster the charging speed. The faster the better, the higher the charging current, the better. However, the aforementioned several forms of battery connectors in the prior art cannot meet the needs of customers in these several forms.

Contents of the invention

The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and deficiencies in the prior art.

The invention provides an electrical connector, the terminals of which can transmit large current.

The present invention also provides an electrical connector, which can reduce the contact resistance of the terminal and improve the electrical contact reliability of the terminal.

The present invention also provides an electrical connector with low overall height and small volume.

According to one aspect of the present invention, there is provided an electrical connector, comprising: an insulating body having a plurality of terminal receiving grooves; and a plurality of terminals respectively held in the plurality of terminal receiving grooves of the insulating body. Each of the terminals includes a welding part, a fixing part, an elastic arm part and a contact part which are sequentially connected to each other. Each of the plurality of terminals has a first metal layer and a second metal layer on a bottom side of the first metal layer; and the first metal layer has a first electrical contact, the first metal layer The second metal layer has a second electrical contact, and the first electrical contact and the second electrical contact are arranged to be adapted to simultaneously contact corresponding mating terminals.

According to an exemplary embodiment of the present invention, a notch is formed on the first metal layer, and the second electrical contact on the second metal layer passes through the notch from the first metal layer. The top side is exposed for electrical contact with the corresponding mating terminal.

According to another exemplary embodiment of the present invention, the first metal layer and the second metal layer are made of the same metal.

According to another exemplary embodiment of the present invention, each of the terminals is an integral piece made of a single metal sheet, and the first metal layer and the first metal layer are formed by folding the single sheet metal sheet. second metal layer.

According to another exemplary embodiment of the present invention, the folding line of the single metal sheet is located at the welding portion of the terminal.

According to another exemplary embodiment of the present invention, the free ends of the first metal layer and the second metal layer are bent inward, so that the free ends of the first metal layer and the second metal layer keep each other together.

According to another exemplary embodiment of the present invention, the first metal layer and the second metal layer are two layers of metal separated from each other, and the two ends of the first metal layer and the second metal layer are respectively bent inward, thereby holding the first metal layer and the second metal layer together.

According to another exemplary embodiment of the present invention, the first metal layer and the second metal layer are two layers of metal separated from each other, and the first metal layer and the second metal layer are welded to each other Together.

According to another exemplary embodiment of the present invention, the first metal layer and the second metal layer are two separate metal layers made of different metals.

According to another exemplary embodiment of the present invention, the two ends of the first metal layer and the second metal layer are respectively bent inward, so as to keep the first metal layer and the second metal layer Together.

According to another exemplary embodiment of the present invention, the first metal layer and the second metal layer are welded together.

According to another exemplary embodiment of the present invention, the soldering portion of the terminal includes a first soldering portion formed on the first metal layer and/or a second soldering portion formed on the second metal layer .

According to another exemplary embodiment of the present invention, the welding portion of the terminal includes a first welding portion and a second welding portion; and the first welding portion and the second welding portion are configured to be suitable for simultaneous welding to the circuit board.

According to another exemplary embodiment of the present invention, a notch is formed at the second welding part of the second metal layer, and the first welding part is exposed from the bottom side of the second metal layer through the notch. , for soldering to the circuit board.

According to another exemplary embodiment of the present invention, the fixing part of the terminal includes a first fixing part formed on the first metal layer and a second fixing part formed on the second metal layer.

According to another exemplary embodiment of the present invention, a first protrusion adapted to be caught in the inner wall of the terminal accommodating groove is formed on the surface of the first fixing part and/or the second fixing part. rise.

According to another exemplary embodiment of the present invention, the edge of the first fixing part and/or the second fixing part is formed with a second protrusion suitable for being caught in the inner wall of the terminal receiving groove. rise.

According to another exemplary embodiment of the present invention, the first protrusion is block-shaped, and the second protrusion is sawtooth-shaped.

According to another exemplary embodiment of the present invention, the elastic arm portion of the terminal includes a first elastic arm portion formed on the first metal layer and a second elastic arm portion formed on the second metal layer department.

According to another exemplary embodiment of the present invention, the first elastic arm portion and the second elastic arm portion include at least one bent section.

According to another exemplary embodiment of the present invention, the contact portion of the terminal includes the first electrical contact formed on the first metal layer and the first electrical contact formed on the second metal layer. Two electrical contacts.

According to another exemplary embodiment of the present invention, the electrical connector further includes a pair of reinforced soldering legs adapted to be soldered to the circuit board, and the pair of reinforced soldering legs are respectively held on two sides of the insulating body. installation slot.

According to another exemplary embodiment of the present invention, the electrical connector is a battery connector.

In the electrical connectors according to various embodiments of the present invention, since each terminal has two metal layers stacked up and down, the conductive area of the entire terminal is increased, the resistance of the entire terminal is reduced, and the current of the terminal is increased. transmission capability, thereby being able to transmit large currents. In addition, the two metal layers of each terminal have electrical contacts that are in contact with the mating terminals of the external circuit, therefore, the two metal layers of each terminal can be in electrical contact with the mating terminals at the same time, reducing the contact resistance of the terminals and improving The electrical contact reliability of the terminal is improved. In addition, the use of two metal layers stacked one above the other can also reduce the height of the entire terminal and realize the miniaturization of the electrical connector.

Other objects and advantages of the present invention will be apparent from the following description of the present invention with reference to the accompanying drawings, and may help to provide a comprehensive understanding of the present invention.

Description of drawings

Figure 1 shows an assembly diagram of an electrical connector according to an embodiment of the present invention;

Figure 2 shows an exploded view of an electrical connector according to an embodiment of the present invention;

Fig. 3 shows a schematic perspective view of a terminal in Fig. 2;

Figure 4 shows a side view of the terminal in Figure 3; and

FIG. 5 shows an enlarged schematic view of the contact portion of the terminal in FIG. 3 .

detailed description

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

According to a general technical concept of the present invention, an electrical connector is provided, comprising: an insulating body having a plurality of terminal receiving grooves; and a plurality of terminals respectively held in the plurality of terminal receiving grooves of the insulating body. Each of the terminals includes a welding part, a fixing part, an elastic arm part and a contact part which are sequentially connected to each other. Each of the plurality of terminals has a first metal layer and a second metal layer on a bottom side of the first metal layer; and the first metal layer has a first electrical contact, the first metal layer The second metal layer has a second electrical contact, and the first electrical contact and the second electrical contact are arranged to be adapted to simultaneously contact corresponding mating terminals.

FIG. 1 shows an assembly diagram of an electrical connector according to an embodiment of the present invention; FIG. 2 shows an exploded view of an electrical connector according to an embodiment of the present invention; FIG. 3 shows a perspective view of a terminal 200 in FIG. 2; and FIG. 4 show a side view of the terminal 200 in FIG. 3 .

In an exemplary embodiment of the present invention, an electrical connector is disclosed. As shown in FIGS. 1 to 4 , in the illustrated embodiment, the electrical connector mainly includes an insulating body 100 and a plurality of terminals 200 .

As shown in FIGS. 1 and 2 , a plurality of terminal receiving grooves 102 are formed on the insulating body 100 . The plurality of terminals 200 are respectively held in the plurality of terminal receiving grooves 102 of the insulating housing 100 .

As shown in FIG. 3 and FIG. 4 , in the illustrated embodiment, each terminal 200 includes a welding portion 201 , a fixing portion 202 , an elastic arm portion 203 and a contact portion 204 which are sequentially connected to each other. The soldering portion 201 of each terminal 200 is suitable for soldering to a circuit board (not shown). The fixing portion 202 of each terminal 200 is adapted to be fixed in the terminal receiving groove 102 of the insulating housing 100 . The elastic arm portion 203 of each terminal 200 is adapted to provide elastic contact force for the entire terminal. The contact portion 204 of each terminal 200 is adapted to make electrical contact with a mating terminal (not shown).

In the illustrated embodiment, as shown in FIGS. . The first metal layer 210 has a first electrical contact 214, the second metal layer 220 has a second electrical contact 224, and the first electrical contact 214 and the second electrical contact 224 are arranged to be adapted to contact corresponding mating terminals simultaneously. .

FIG. 5 shows an enlarged schematic view of the contact portion 204 of the terminal 200 in FIG. 3 .

As shown in FIGS. 3 and 5 , in an exemplary embodiment of the present invention, a notch 2141 is formed on the first metal layer 210 through which the second electrical contact 224 on the second metal layer 220 passes. The notches 2141 are exposed from the top side of the first metal layer 210 so as to make electrical contact with corresponding mating terminals.

In the illustrated embodiment, as shown in FIGS. 3 and 4 , the first metal layer 210 and the second metal layer 220 are made of the same metal. Of course, those skilled in the art should understand that the first metal layer 210 and the second metal layer 220 can also be made of different metal materials based on mechanical performance, electrical performance or cost considerations.

In an exemplary embodiment of the present invention, each terminal 200 is an integral piece made of a single metal sheet, and the first metal layer 210 and the second metal layer 220 are formed by folding the single sheet metal.

In an exemplary embodiment of the present invention, the folding line of the single metal sheet can be located at the welding portion 201 of the terminal 200 . Please note that the present invention is not limited to the illustrated embodiment, and the folding line of the single metal sheet can also be located at other positions of the terminal 200, for example, at the longitudinal side of the terminal.

As shown in Figures 3 and 4, in the illustrated embodiment, the free ends (the left ends in Figures 3 and 4) of the first metal layer 210 and the second metal layer 220 are bent inward, so that the first metal layer The free ends of layer 210 and second metal layer 220 are held together.

In the foregoing embodiments, each terminal 200 is a one-piece piece made from a single sheet metal sheet. However, the present invention is not limited to the foregoing embodiments, and the first metal layer 210 and the second metal layer 220 of each terminal 200 may also be two metal layers separated from each other. The first metal layer 210 and the second metal layer 220 are stacked up and down together, and the two ends of the first metal layer 210 and the second metal layer 220 are respectively bent inward, so that the first metal layer 210 and the second metal layer 220 are kept together.

In another exemplary embodiment of the present invention, the first metal layer 210 and the second metal layer 220 of each terminal 200 are two metal layers separated from each other. The first metal layer 210 and the second metal layer 220 are welded together.

In the foregoing embodiments, the first metal layer 210 and the second metal layer 220 are made of the same metal. However, the present invention is not limited to the foregoing embodiments, and the first metal layer 210 and the second metal layer 220 may also be two separate metal layers made of different metals. In this case, both ends of the first metal layer 210 and the second metal layer 220 may be bent inward, respectively, so as to hold the first metal layer 210 and the second metal layer 220 together; or, the first metal layer 210 and the The second metal layer 220 is welded together

As shown in FIGS. 3 and 4 , in an exemplary embodiment of the present invention, the welding portion 202 of the terminal 200 includes a first welding portion 211 formed on the first metal layer 210 and/or formed on the second metal layer The second weld 221 on the layer 220 .

In the illustrated embodiment, as shown in FIGS. 3 and 4 , the soldering portion 202 of the terminal 200 includes a first soldering portion 211 and a second soldering portion 221; and the first soldering portion 211 and the second soldering portion 221 are set into suitable soldering to the circuit board at the same time.

As shown in FIGS. 3 and 4 , a gap is formed at the second soldering portion 221 of the second metal layer 220 , and the first soldering portion 211 is exposed from the bottom side of the second metal layer 220 through the gap, so as to be soldered to the circuit board. .

As shown in FIG. 3 and FIG. 4 , in an exemplary embodiment of the present invention, the fixing portion 202 of the terminal 200 includes a first fixing portion 212 formed on the first metal layer 210 and a first fixing portion 212 formed on the second metal layer 220 The second fixing part 222 on it.

In the illustrated embodiment, as shown in FIG. 3 and FIG. 4 , on the surface of the first fixing portion 212 and/or the second fixing portion 222 is formed a first groove suitable for being held in the inner wall of the terminal receiving groove 102 . One raised 2121. In the illustrated embodiment, the first protrusion 2121 is block-shaped.

In the illustrated embodiment, as shown in FIG. 3 and FIG. 4 , on the edge of the first fixing portion 212 and/or the second fixing portion 222 is formed a first groove suitable for being caught in the inner wall of the terminal receiving groove 102 . Two raised 2122. In the illustrated embodiment, the second protrusion 2122 is in a sawtooth shape.

As shown in FIG. 3 and FIG. 4 , in an exemplary embodiment of the present invention, the elastic arm portion 203 of the terminal 200 includes a first elastic arm portion 213 formed on the first metal layer 210 and a first elastic arm portion 213 formed on the second metal layer. The second elastic arm portion 223 on the layer 220 . In order to improve the elasticity of the terminal, the first elastic arm portion 213 and the second elastic arm portion 223 include at least one bent section.

As shown in FIG. 3 and FIG. 4 , in an exemplary embodiment of the present invention, the contact portion 204 of the terminal 200 includes a first electrical contact 214 formed on the first metal layer 210 and a first electrical contact 214 formed on the second metal layer Second electrical contact 224 on 220 .

As shown in Figures 1 and 2, in an exemplary embodiment of the present invention, the electrical connector further includes a pair of reinforced soldering feet 300 adapted to be soldered to a circuit board, and the pair of reinforced soldering feet 300 are respectively held on Two mounting slots 103 of the insulating housing 100 .

In an exemplary embodiment of the present invention, the electrical connector may be a battery connector used in an electronic mobile communication device, for example, a battery connector of a mobile phone.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Can be combined freely.

Although the present invention has been described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

While certain embodiments of the present general inventive concept have been shown and described, it will be understood by those of ordinary skill in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept. The scope is defined by the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Furthermore, any element references in the claims should not be construed as limiting the scope of the invention.

Claims (23)

1. an electric connector, including:

Insulating body (100), has multiple terminal accepting grooves (102)；With

Multiple terminals (200), are kept at the plurality of of described insulating body (100) In terminal accepting grooves (102),

Wherein, each described terminal (200) include the most interconnective weld part (201), Fixed part (202), elastic arm (203) and contact site (204),

It is characterized in that:

Each terminal (200) in the plurality of terminal (200) has the first metal layer (210) With the second metal level (220) on the bottom side being positioned at described the first metal layer (210)；And

Described the first metal layer (210) has the first electric contact (214), described second metal Layer (220) has the second electric contact (224), described first electric contact (214) and described the Two electric contacts (224) are configured to the mating terminals being suitable to simultaneously contact correspondence.

Electric connector the most according to claim 1, it is characterised in that:

Described the first metal layer (210) is formed notch (2141), described second metal The second electric contact (224) on layer (220) passes through described notch (2141) from described first The top side of metal level (210) is exposed, in order to corresponding mating terminals electrical contact.

Electric connector the most according to claim 2, it is characterised in that:

Described the first metal layer (210) with described second metal level (220) by identical metal Make.

Electric connector the most according to claim 3, it is characterised in that:

Each described terminal (200) is the integral piece being made up of unitary piece of metal flitch, and leads to Cross and fold described unitary piece of metal flitch and form described the first metal layer (210) and described second gold medal Belong to layer (220).

Electric connector the most according to claim 4, it is characterised in that:

The fold line of described unitary piece of metal flitch is positioned at the weld part (201) of described terminal (200) Place.

Electric connector the most according to claim 5, it is characterised in that:

The free end of described the first metal layer (210) and described second metal level (220) is inside Bending, thus by oneself of described the first metal layer (210) and described second metal level (220) It is mutually kept together by end.

Electric connector the most according to claim 3, it is characterised in that:

Described the first metal layer (210) and described second metal level (220) are separated from each other Double layer of metal, and described the first metal layer (210) and described second metal level (220) Two ends are respectively bent inward, thus by described the first metal layer (210) and described second metal Layer (220) keeps together.

Electric connector the most according to claim 3, it is characterised in that:

Described the first metal layer (210) and described second metal level (220) are separated from each other Double layer of metal, and described the first metal layer (210) and described second metal level (220) phase Weld together mutually.

Electric connector the most according to claim 2, it is characterised in that:

Described the first metal layer (210) and described second metal level (220) are by different metal Double layer of metal that make, that be separated from each other.

Electric connector the most according to claim 9, it is characterised in that:

The two ends of described the first metal layer (210) and described second metal level (220) respectively to Interior bending, thus described the first metal layer (210) and described second metal level (220) are protected Hold together.

11. electric connectors according to claim 10, it is characterised in that:

Described the first metal layer (210) and described second metal level (220) are welded to each other one Rise.

12. electric connectors according to claim 1, it is characterised in that:

The weld part (202) of described terminal (200) includes being formed at described the first metal layer (210) On the first weld part (211) and/or be formed on described second metal level (220) Two weld parts (221).

13. electric connectors according to claim 12, it is characterised in that:

The weld part (202) of described terminal (200) includes the first weld part (211) and Two weld parts (221)；And

Described first weld part (211) and described second weld part (221) are configured to be suitable to It is welded on circuit board simultaneously.

14. electric connectors according to claim 13, it is characterised in that:

It is formed with breach at the second weld part (221) place of described second metal level (220), Described first weld part (211) passes through described breach from the end of described second metal level (220) Side is exposed, in order to be welded on circuit board.

15. electric connectors according to claim 1, it is characterised in that:

The fixed part (202) of described terminal (200) includes being formed at described the first metal layer (210) On the first fixed part (212) and be formed on described second metal level (220) second solid Determine portion (222).

16. electric connectors according to claim 15, it is characterised in that:

On described first fixed part (212) and/or the surface of described second fixed part (222) On be formed in the inwall being suitable to be held in described terminal accepting grooves (102) first protruding (2121)。

17. electric connectors according to claim 16, it is characterised in that:

At described first fixed part (212) and/or the edge of described second fixed part (222) On be formed in the inwall being suitable to be held in described terminal accepting grooves (102) second protruding (2122)。

18. electric connectors according to claim 17, it is characterised in that:

Described first protruding (2121) are in bulk, and described second protruding (2122) are in saw Dentation.

19. electric connectors according to claim 1, it is characterised in that:

The elastic arm (203) of described terminal (200) includes being formed at described the first metal layer (210) the first elastic arm (213) on and be formed at described second metal level (220) On the second elastic arm (223).

20. electric connectors according to claim 19, it is characterised in that:

Described first elastic arm (213) and described second elastic arm (223) include at least One bending section.

21. electric connectors according to claim 1, it is characterised in that:

The contact site (204) of described terminal (200) includes being formed at described the first metal layer (210) On described first electric contact (214) and the institute that is formed on described second metal level (220) State the second electric contact (224).

22. electric connectors according to claim 1, it is characterised in that:

Described electric connector also includes a pair enhancing welding foot being adapted to weld on circuit board (300), the pair of enhancing welding foot (300) is kept at described insulating body (100) Two mounting grooves (103) in.

23. electric connectors according to claim 1, it is characterised in that: described electrical connection Device is battery connector.