CN214849306U

CN214849306U - Small connector of heavy current

Info

Publication number: CN214849306U
Application number: CN202120971186.0U
Authority: CN
Inventors: 宋璐; 武永红; 卢基祿
Original assignee: FCI Connectors Dongguan Co Ltd
Current assignee: FCI Connectors Dongguan Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-11-23
Anticipated expiration: 2031-05-08

Abstract

The utility model provides a small connector with large current, which comprises a connector shell, an upper row of terminals and a lower row of terminals which are arranged in the connector shell, wherein the connector shell is provided with a slot; the connector shell is provided with a mounting groove which penetrates through the outer side wall of the connector shell; the upper end of the connector shell is also provided with a heat dissipation hole which is positioned on the connector shell at the position of the head part of the upper row of terminals; the heat dissipation hole position of the upper end of the connector shell is also provided with a heat dissipation film. The utility model discloses a set up a plurality of mounting grooves that are used for installing the terminal on the connector housing, and the terminal exposes completely, through set up the louvre on the connector housing of the terminal head position of the upper row simultaneously, thus increase the radiating efficiency of terminal; the heat dissipation efficiency of the terminal head part is improved through the heat dissipation film arranged at the heat dissipation hole; by adopting the high-conductivity copper alloy, the resistance of the material is reduced, the heat generation is reduced, and the current of 1.26A Max can be measured.

Description

Small connector of heavy current

Technical Field

The utility model belongs to the technical field of the connector technique and specifically relates to a small-size connector of heavy current.

Background

An electrical connector is a common electronic device that performs a current and/or signal transmission function by contacting connection terminals. The electrical connector generally includes a male connector and a female connector each having a built-in connection terminal, and the connection terminals between the male connector and the female connector are connected or disconnected by inserting and extracting the male connector and the female connector, so as to connect or disconnect the transmission of electric current and/or signals.

The existing connector is limited by the space of the connector shell, and the heat dissipation is not good, so that the connector can only run 0.50A of current to the maximum extent. For example, CN103107439B discloses a connector, which includes a male connector and a female connector that are inserted into each other, where the male connector includes a male terminal, the male terminal is composed of an insertion part and a welding wire part riveted to the rear end of the insertion part, and the insertion part is formed by twisting multiple metal wires. The female connector includes a female terminal made of a copper pipe.

This patent is through adopting the grafting portion that the stranded wire transposition formed the male terminal, rivets with the bonding wire portion again and presses integratively, and the female terminal then adopts the copper pipe to can carry the heavy current when male connector and female connector butt joint, through the test, every terminal can bear 5A's electric current, and the terminal that is used as the detection also can bear 3A's electric current, can satisfy the operation requirement of charging fast for high capacity battery.

However, the patent deals with the terminals correspondingly, i.e. the terminals are wound with a plurality of strands of wires, which obviously cannot solve the problem of low current caused by the heat dissipation problem of the connector, and the space of the connector housing is limited, and the terminals with larger structures cannot be installed.

Disclosure of Invention

Not enough to prior art, the utility model provides a small-size connector of heavy current, the utility model discloses an improve the heat dissipation problem of connector to realize that the connector can run the heavy current.

The technical scheme of the utility model is that: a small-sized connector with high current comprises a connector shell, an upper row of terminals and a lower row of terminals, wherein the upper row of terminals and the lower row of terminals are arranged in the connector shell and matched with each other;

the connector shell is also provided with a plurality of mounting grooves for mounting the upper row of terminals and the lower row of terminals, the mounting grooves penetrate through the outer side wall of the connector shell, and the upper row of terminals and the lower row of terminals are completely exposed;

the upper end of the connector shell is also provided with a heat dissipation hole, and the heat dissipation hole is positioned on the connector shell at the position of the head part of the upper row of terminals;

and a heat dissipation film is arranged at the position of the heat dissipation hole at the upper end of the connector shell.

Preferably, the two sides of the mounting groove are provided with corresponding baffles, and the baffles in the mounting groove are also provided with clamping grooves for clamping the terminals.

The upper row of terminals and the lower row of terminals are preferably made of high-conductivity copper alloy so as to reduce the resistance of the material and reduce heat generation.

Preferably, the upper row of terminals includes a first connecting arm a and a first connecting arm b, and a first holding portion is disposed between the first connecting arm a and the first connecting arm b;

the other end of the first connecting arm a is provided with a first contact end, and the other end of the first connecting arm b is provided with a first welding end.

Preferably, the first contact end is of a horseshoe-shaped structure, and the first welding end and the first connecting arm b form an L-shaped structure.

Preferably, the first holding portion extends towards the first contact end, and a plurality of clamping portions are further arranged on one side wall of the first holding portion.

Preferably, the width of the first connecting arm a increases from the first contact end to the first holding portion.

Preferably, the lower row of terminals includes a second connecting arm a and a second connecting arm b, and a second holding portion is disposed between the second connecting arm a and the second connecting arm b;

the other end of the second connecting arm a is provided with a second contact end, and the other end of the second connecting arm b is provided with a second welding end.

Preferably, the second contact end is of a horseshoe-shaped structure, and the second welding end and the second connecting arm b form an L-shaped structure.

Preferably, the second holding portion extends towards the second contact end, and a plurality of clamping portions are further arranged on one side wall of the second holding portion.

The utility model has the advantages that:

1. the utility model discloses a set up a plurality of mounting grooves that are used for installing the terminal on the connector housing, and the terminal exposes completely, through set up the louvre on the connector housing of the terminal head position of the upper row simultaneously, thus increase the radiating efficiency of terminal;

2. the utility model increases the heat dissipation efficiency of the terminal head part by arranging the heat dissipation film at the heat dissipation hole;

3. the utility model discloses an adopt high conductivity copper alloy in order to reduce the resistance of material itself, reduce and generate heat, the actual measurement can run 1.26A Max electric current, satisfies the requirement of application to electric current 1A min.

Drawings

Fig. 1 is a schematic structural diagram of the connector of the present invention;

fig. 2 is a schematic structural view of the other side of the connector of the present invention;

fig. 3 is a schematic structural diagram of the connector housing of the present invention;

fig. 4 is a schematic structural view of the other side of the connector housing of the present invention;

FIG. 5 is an enlarged view of the position A in FIG. 4 according to the present invention;

fig. 6 is a schematic structural view of the upper row of terminals and the lower row of terminals of the present invention;

fig. 7 is a schematic structural view of an upper row of terminals according to the present invention;

fig. 8 is a schematic structural view of the lower row of terminals of the present invention;

in the figure, 1-connector shell, 2-upper row terminal, 3-lower row terminal, 4-slot, 5-mounting slot, 6-heat dissipation hole and 7-heat dissipation film;

11-clamping groove, 12-baffle;

21-a first connecting arm a, 22-a first connecting arm b, 23-a first fixing part, 24-a first contact end, 25-a first welding end, 26-a clamping part;

31-second connecting arm a, 32-second connecting arm b, 33-second holding part, 34-second contact end, 35-second welding end.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1 and 2, the present embodiment provides a high-current small-sized connector, which includes a connector housing 1, and an upper row terminal 2 and a lower row terminal 3 disposed in the connector housing 1 and engaged with each other, wherein the connector housing 1 is provided with a slot 4 along a length direction.

In this embodiment, as shown in fig. 3 to 5, the connector housing 1 is further provided with a plurality of mounting grooves 5 for mounting the upper row of terminals 2 and the lower row of terminals 3, the mounting grooves 5 penetrate through the outer side wall of the connector housing 1, and the upper row of terminals 2 and the lower row of terminals 3 are completely exposed.

The upper end of the connector housing 1 is also provided with a heat dissipation hole 6, and the heat dissipation hole 6 is positioned on the connector housing 1 at the head position of the upper row of terminals 2; and a heat dissipation film 7 is arranged at the position of the heat dissipation hole 6 at the upper end of the connector housing 1.

Preferably, the two sides of the mounting groove 6 are provided with corresponding baffles 12, and the baffles 12 in the mounting groove 5 are further provided with clamping grooves 11 for clamping terminals.

Preferably, in this embodiment, the upper row terminals 2 and the lower row terminals 3 are made of a high-conductivity copper alloy, so as to reduce the resistance of the material itself and reduce heat generation.

Preferably, as shown in fig. 6 and 7, the upper row terminal 2 includes a first connecting arm a21 and a first connecting arm b22, and a first holding portion 23 is disposed between the first connecting arm a21 and the first connecting arm b 22;

the other end of the first connecting arm a21 is provided with a first contact end 24, and the other end of the first connecting arm b22 is provided with a first welding end 25. The first contact end 24 is a horseshoe-shaped structure, and the first welding end 25 and the first connecting arm b22 form an L-shaped structure.

Preferably, the first holding portion 23 extends toward the first contact end 24, and a plurality of engaging portions 26 are further disposed on a side wall of the first holding portion 23.

Preferably, the width of the first connecting arm a21 increases from the first contact end 24 to the first holding portion 23.

As shown in fig. 6 and 8, the lower row of terminals 3 preferably includes a second connecting arm a31 and a second connecting arm b32, and a second holding portion 33 is disposed between the second connecting arm a31 and the second connecting arm b 32;

the other end of the second connecting arm a31 is provided with a second contact end 34, and the other end of the second connecting arm b32 is provided with a second welding end 35. In this embodiment, the second contact end 34 is a horseshoe-shaped structure, and the second soldering end 35 and the second connecting arm b32 form an L-shaped structure.

Preferably, the second holding portion 33 extends toward the second contact end 34, and a plurality of engaging portions 26 are further disposed on a sidewall of the second holding portion 33.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims

1. A small-sized connector with large current comprises a connector shell (1), and an upper row terminal (2) and a lower row terminal (3) which are arranged in the connector shell (1) and are matched with each other, wherein a slot (4) is formed in the connector shell (1) along the length direction;

the connector shell (1) is also provided with a plurality of mounting grooves (5) for mounting the upper row of terminals (2) and the lower row of terminals (3), the mounting grooves (5) penetrate through the outer side wall of the connector shell (1), and the upper row of terminals (2) and the lower row of terminals (3) are completely exposed;

the upper end of the connector shell (1) is also provided with a heat dissipation hole (6), and the heat dissipation hole (6) is positioned on the connector shell (1) at the head position of the upper row of terminals (2);

and a heat dissipation film (7) is arranged at the position of a heat dissipation hole (6) at the upper end of the connector shell (1).

2. A high current miniature connector as recited in claim 1, wherein: the mounting groove (5) both sides be corresponding baffle (12), baffle (12) in mounting groove (5) on still be provided with draw-in groove (11) that are used for joint terminal.

3. A high current miniature connector as recited in claim 1, wherein: the upper row of terminals (2) and the lower row of terminals (3) are made of high-conductivity copper alloy.

4. A high current miniature connector as recited in claim 3, wherein: the upper row terminal (2) comprises a first connecting arm a (21) and a first connecting arm b (22), and a first holding part (23) is arranged between the first connecting arm a (21) and the first connecting arm b (22);

the other end of the first connecting arm a (21) is provided with a first contact end (24), and the other end of the first connecting arm b (22) is provided with a first welding end (25).

5. A high current miniature connector as claimed in claim 4, wherein: the first contact end (24) is of a horseshoe-shaped structure, and the first welding end (25) and the first connecting arm b (22) form an L-shaped structure.

6. A high current miniature connector as claimed in claim 5, wherein: the first fixing part (23) extends towards the first contact end (24), and a plurality of clamping parts (26) are further arranged on one side wall of the first fixing part (23).

7. A high current miniature connector as claimed in claim 4, wherein: the width of the first connecting arm a (21) is increased from the first contact end (24) to the first holding part (23).

8. A high current miniature connector as recited in claim 3, wherein: the lower row of terminals (3) comprises a second connecting arm a (31) and a second connecting arm b (32), and a second fixing part (33) is arranged between the second connecting arm a (31) and the second connecting arm b (32);

the other end of the second connecting arm a (31) is provided with a second contact end (34), and the other end of the second connecting arm b (32) is provided with a second welding end (35).

9. A high current miniature connector as recited in claim 8, wherein: the second contact end (34) is of a horseshoe-shaped structure, and the second welding end (35) and the second connecting arm b (32) form an L-shaped structure.

10. A high current miniature connector as recited in claim 8, wherein: the second fixing part (33) extends towards the direction of the second contact end (34), and a plurality of clamping parts (26) are further arranged on one side wall of the second fixing part (33).