CN200962489Y

CN200962489Y - Electrical connector

Info

Publication number: CN200962489Y
Application number: CN 200620148714
Authority: CN
Inventors: 徐祥
Original assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2007-10-17
Anticipated expiration: 2016-10-13

Abstract

The utility model discloses an electric connector, including an insulator and a plurality of terminal, be equipped with a plurality of terminal accepting grooves of accepting each terminal on this insulator side by side. Each terminal containing groove is respectively provided with a front opening on the front end surface for butt joint of the insulating body, and the insulating body is provided with a limiting part which is used for limiting with the elastic arm of the terminal in the crimping action process above the front opening. Each terminal has a base, a spring arm connected to one end of the base, a contact portion extending out of the front opening, and a solder portion connected to the other end of the base. When the battery connector is butted with a battery plate, the contact part of the terminal and the elastic arm are displaced under the pushing of the battery plate; when the elastic arm of the terminal moves to the limit part for stopping, the contact part moves back. Therefore, the displacement of the contact part between the initial position and the final position is smaller than that of the contact part without the limiting part, and the size of the golden finger on the corresponding battery plate is reduced. The utility model discloses a butt joint of battery connector is accurate, stable.

Description

Electric connector

Technical field

The utility model is about a kind of electric connector, especially about a kind of electric connector that is used to connect power supply.

Background technology

Chinese patent discloses a kind of battery connector 6 for No. 200420116764, and this battery connector 6 is used for portable type electronic product to be contacted with cell panel (not shown) and realize being electrically connected accordingly.As shown in Figure 1, this battery connector 6 comprises an insulating body 60 and plurality of terminals 61, is formed with plurality of terminals accepting groove 62 on this insulating body 60, and each terminal 61 is contained in the corresponding terminal containing slot 62.Is last with insulating body 60 towards the one side of cell panel, and this insulating body 60 has a upper surface 600, and with these upper surface 600 opposing lower surface 601; Connect this upper surface 600 and be formed with a front end face 602 and rear end face 603 with lower surface 601.Each terminal containing slot 62 is respectively at forming a upper shed 620, under shed 621 and an embedding mouth 622 on upper surface 600, lower surface 601 and the front end face 602.The width of this upper shed 620 is slightly less than the width of terminal containing slot 62.Terminal containing slot 62 inwalls are provided with a holding slot 623 relatively near both sides, under shed 621 place.Each terminal 61 comprises an elastic contact arm 610, a base portion 611, connects first kink 612 of this elastic contact arm 610 and base portion 611, and by base portion 611 downward weld parts 613 that extend.Concrete, this elastic contact arm 610 is provided with one second kink 614 and the 3rd kink 615 successively, and wherein a contact site 616 is protruded at the 3rd kink 615 tops.In addition, these elastic contact arm 610 ends extend a pair of buckle ear 617 to both sides, and two fixed-wings 618 are extended in these base portion 611 both sides.

After 61 groups of terminals were gone into terminal containing slot 62, its contact site 616 convexedly stretched in outside the upper shed 620, and whole elastic contact arm 610 nationalitys by two buckle ears 617 by relative positioning in terminal containing slot 62, can not eject.The fixed-wing 618 of terminal 61 base portions 611 both sides is contained in the corresponding holding slot 623, and nationality is by with the interference fit of holding slot 623 cell walls terminal 61 being fixed in the terminal containing slot 62.The weld part 613 of terminal 61 extends the under shed 621 of terminal containing slot 62, can further be soldered on the circuit board.

Because when docking with cell panel, contact site is along with the pushing of cell panel, and described contact site can be accordingly constantly to bottom offset, and the initial position and the final position relative displacement that cause the contact site of this type electric connector to contact with golden finger on the cell panel are bigger.The size of golden finger could satisfy accurately butt joint and the stable needs that are connected greatly on the cell panel, is difficult to adapt to the trend of product miniaturization; Otherwise the contact site that terminal very easily occurs skids off golden finger and loose contact.Therefore existing this type electric connector is still needed and is further improved.

The utility model content

The utility model provides a kind of electric connector, this electric connector can make the relative displacement of contact site between initial position that contacts with golden finger on the cell panel and final docking location diminish, and the golden finger size need not can guarantee too greatly accurately stable electrical connection on the corresponding battery plate.

The utility model provides following technical proposal: a kind of battery connector comprises that one is provided with insulating body and some terminals that is contained in the respective terminal accepting groove of plurality of terminals accepting groove.This insulating body has a front end face for butt joint, and each terminal containing slot is respectively at forming an open front on this front end face.Each terminal has a base portion, an elastic arm that is connected with base portion one end and extends the contact site of open front, and the weld part that is connected with the base portion other end.This insulating body carries out spacing limiting section in the elastic arm of this open front top formation one and described terminal in the crimping mechanism.

In one embodiment, the elastic arm of this each terminal advances one one and comprises one from the first U-shaped portion and one second U-shaped portion that base portion extends, and each U-shaped portion comprises one first leg and second leg; The opening surface of this first U-shaped portion is to this base portion, and the opening surface of this second U-shaped portion is to the front end face of described insulating body.The described first U-shaped portion is by constituting from upwardly extending first leg of described base portion one end with from downward second leg that extends of first leg bending; First leg of the described second U-shaped portion extends the second leg end by the described first U-shaped portion, the top of the second U-shaped portion is a contact site, be extended with second leg of the second U-shaped portion by described contact site in terminal containing slot, second leg of this second U-shaped portion is positioned at first leg top and towards this limiting section.This terminal containing slot is formed with retaining wall in open front place, and retaining wall constitutes described limiting section on this.

Wherein, the free end of the elastic arm of described terminal is formed with a holding part; And the corresponding displacement slot that is concaved with on the two side of described terminal containing slot inside, described holding part is contained in the described displacement slot.

Described displacement slot has on one stopper and stopper once, and described holding part is spacing up and down between the stopper.

Twice stoppers of this displacement slot connect described front end face and form an installation opening, and described holding part is to be gone into by this installation opening group.

This terminal containing slot is formed with retaining wall in open front place, and the both sides of retaining wall extend downward the installation opening top respectively and constitute two side retaining walls respectively on this, and described holding part is kept out in these side retaining walls.

Rear end in the described terminal containing slot is provided with a back stopper, and this back stopper is kept out first leg of the first U-shaped portion of support in the strain of terminal.

The base portion both sides of this each terminal are provided with some holding parts, and the bottom of this each terminal containing slot is formed with holding slot in the both sides of each open front; This holding parts is contained in the corresponding holding slot.This weld part is to bend earlier horizontal-extending downwards from base portion one end.

The existing battery connector of the utility model, the contact site of terminal move on can be not always because of limiting section spacing in docking operation, but travelling backwards can occur.Thereby the displacement of contact site between initial position and final docking location is less, and the golden finger size is less on the corresponding required cell panel; Have and reduce production costs, be electrically connected stable, be fit to the advantage of product trend toward miniaturization.

Description of drawings

Fig. 1 is the three-dimensional exploded view of an existing electric connector;

Fig. 2 is a stereogram according to electric connector of the present utility model;

Fig. 3 is the partial sectional view of electric connector among Fig. 2;

Fig. 4 is the three-dimensional exploded view of electric connector among Fig. 2;

Fig. 5 is the rearview of electric connector among Fig. 2;

Fig. 6 is a schematic diagram when docking with a cell panel according to electric connector of the present utility model.

Symbol description among the figure:

1 electric connector
1 electric connector		2 insulating bodies	20 front end faces
21 rear end faces	22 upper surfaces	2 insulating bodies	20 front end faces
21 rear end faces	22 upper surfaces	23 lower surfaces	24 limiting sections
25 back stoppers	26 installation openings	23 lower surfaces	24 limiting sections
25 back stoppers	26 installation openings	261 side retaining walls
3 terminals	30 elastic arms	261 side retaining walls

300 first U-shaped portions	301 second U-shaped portions
300 first U-shaped portions	301 second U-shaped portions	300a, 301a first leg	300b, 301b second leg
31 contact sites	32 base portions	300a, 301a first leg	300b, 301b second leg
31 contact sites	32 base portions	320 holding parts	33 weld parts
34 holding parts		320 holding parts	33 weld parts
34 holding parts		4 terminal containing slots	40 open fronts
41 after-openings	42 under sheds	4 terminal containing slots	40 open fronts
41 after-openings	42 under sheds	43 displacement slots	Stopper on 430
431 times stoppers		43 displacement slots	Stopper on 430
431 times stoppers		44 holding slots

Embodiment

For better understanding spirit of the present utility model, it is described further below in conjunction with preferred embodiment of the present utility model.

As shown in Figure 2, can be arranged in the portable type electronic product, be used to connect an independent battery plate that inserts and provide power supply for entire product according to the electric connector 1 of the utility model one preferred embodiment.This electric connector 1 comprises an insulating body 2, and some terminals 3 that is arranged in the insulating body 2.

In conjunction with Fig. 3,4, this insulating body 2 roughly is rectangular-shaped, is provided with some terminal containing slots 4 of accommodating respective terminal 3 side by side along its length direction.Is front end face 20 with insulating body 2 towards the face of cell panel, and relative with this front end face 20 is rear end face 21; Connect this front end face 20 and form a upper surface 22 and lower surface 23 with rear end face 21.Each terminal containing slot 4 runs through the front end face 20 of insulating body 2 to rear end face 21, forms an open front 40 and after-opening 41 respectively, and forms a under shed 42 in lower surface 23 front ends.Each terminal containing slot 4 forms a back stopper 25 below after-opening 41.Be recessed to form one on two madial walls of each terminal containing slot 4 inside respectively by the displacement slot 43 that extends behind the forward direction, this two displacement slot 43 forms a upper and lower stopper 430,431 respectively on its relative two side.In addition, an installation opening 26 is formed on front end face 20 at two displacement slots, 43 bottoms.This terminal containing slot 4 is formed with retaining wall in open front 40 places, should go up retaining wall and constitute a limiting section 24, and the both sides of retaining wall extend downwardly into installation opening 26 tops respectively and constitute two side retaining walls 261 respectively on this, and terminal containing slot 4 bottoms are formed with relative holding slot 44 near under shed 42 both sides.

As shown in Figure 4, each terminal 3 has an elastic arm 30, a contact site 31, a base portion 32, and a weld part 33.This elastic arm 30 has 300, one second U-shaped portions 301 of one first U-shaped portion, and each U-shaped portion 300,301 has one first supporting

leg

300a, 301a and the second supporting

leg

300b, 301b respectively.Open Side Down in this first U-shaped portion 300, and its first leg 300a extends from these base portion 32 bendings; The opening direction of the described second U-shaped portion is towards the front end face of described insulating body, the first leg 301a of this second U-shaped portion 301 extends the arc that is evagination from the second leg 300b tip forward bending of this first U-shaped portion 300, its second supporting leg 301b extends first supporting leg 301a top and towards this limiting section 24, its free terminal forms the holding part 34 of a cross bar shape.Contact site 31 is formed at the U-shaped top of the second U-shaped portion 301.Weld part 33 slightly bends horizontal-extending downwards from the other end of base portion 32 elasticity of extension arms 30.In addition, for further terminal 3 being immobilizated in the terminal containing slot 4, base portion 32 both sides also are provided with some holding parts 320 as hangnail etc.

In conjunction with Fig. 3,4,5, the holding part 34 of elastic arm 30 ends of terminal 3 is aimed at installation openings 26, base portion 32 is aimed at holding slots 44, organizes backward into terminal containing slot 4 by front end, simultaneously, along with the propelling of terminal 3 in terminal containing slot 4.The holding parts 320 of base portion 32 both sides is interfered with corresponding holding slot 44 cell walls, and with terminal 3 relative fixings.Holding part 34 can break away from installation openings 26 restriction and displacement slot 43 in elastic return and act on forward and the button of keeping out that is subjected to the side retaining wall 261 of open front 40 both sides is held, the elastic arm 30 general designs of terminal at this moment are that to have initial pre-strain be so-called precompressed effect.Displacement slot 43 has last stopper 430 and following stopper 431, holding part 34 spacing about between the stopper 430,431, limit improper strength and make the second U-shaped portion, 301 permanent deformations.The contact site 31 of terminal 3 convexedly stretches in outside the open front 40 of terminal containing slot 4, and weld part 33 extends under shed 42 places.

As shown in Figure 6, when battery connector 1 docked with a cell panel E, the contact site 31 that cell panel E can push each terminal 3 made elastic arm 30 that elastic deformation take place.At the incipient stage E1 of butt joint, elastic arm 30 is inside strain under external force, thereby the position of contact site 31 is moved on preliminary, until the second leg 301b of the second U-shaped portion 301 of elastic arm 30 limiting section 24 against insulating body 2, as E2.Along with the further pushing of cell panel, the contact site 31 of each terminal 3 is because of the backstop of limiting section 24 moves down, stop the application of force after, each terminal 3 nationality can omit resilience by the elasticity of elastic arm 30, finally arrives the state of a relative equilibrium, as E3.This back stopper 25 is kept out the first leg 300a of the first U-shaped portion 300 that supports in the strain of terminal 3, make the first leg 300a can not protrude after-opening 41 and can strengthen the elastic force of terminal.By finding out the displacement h of contact site 31 between initial position E1 and final position E3 among Fig. 6 ₁Than the displacement h of E1 in the docking operation to E2 ₂Little a lot, and find out easily, also can continue upwards to raise as the position of this contact site 31 of backstop of infinite place portion 24.Thereby this limiting section 24 the very big displacement of contact site 31 between initial position and final position that reduced be set, the size that corresponding battery plate E goes up golden finger is also reduced significantly.So it is accurate, stable that the existing battery connector of the utility model has butt joint, cost is low, adapts to the shortcoming of product miniaturization.

Technology contents of the present utility model and technical characterstic disclose as above, yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and done all replacement and modifications that does not deviate from the utility model spirit.Therefore, protection range of the present utility model should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present utility model and modifications, and is contained by the present patent application claim.

Claims

1. an electric connector comprises that one is provided with insulating body and some terminals that is contained in the respective terminal accepting groove of plurality of terminals accepting groove; This insulating body has a front end face for butt joint, and each terminal containing slot is respectively at forming an open front on this front end face; Each terminal has a base portion, an elastic arm that is connected with base portion one end and extends the contact site of open front, and the weld part that is connected with the base portion other end; It is characterized in that: this insulating body carries out spacing limiting section in the elastic arm of this open front top formation one and described terminal in the crimping mechanism.

2. electric connector as claimed in claim 1 is characterized in that: the elastic arm of this each terminal further comprises one from the first U-shaped portion and one second U-shaped portion that base portion extends, and each U-shaped portion comprises one first leg and second leg; The opening surface of this first U-shaped portion is to this base portion, and the opening surface of this second U-shaped portion is to the front end face of described insulating body.

3. electric connector as claimed in claim 2 is characterized in that: the described first U-shaped portion is by constituting from upwardly extending first leg of described base portion one end with from downward second leg that extends of first leg bending; First leg of the described second U-shaped portion extends the second leg end by the described first U-shaped portion, the top of the second U-shaped portion is a contact site, be extended with second leg of the second U-shaped portion by described contact site in terminal containing slot, second leg of this second U-shaped portion is positioned at first leg top and towards this limiting section.

4. as claim 1,2 or 3 described electric connectors, it is characterized in that: this terminal containing slot is formed with retaining wall in open front place, and retaining wall constitutes described limiting section on this.

5. as claim 2 or 3 described electric connectors, it is characterized in that: the free end of the elastic arm of described terminal is formed with a holding part; And the corresponding displacement slot that is concaved with on the two side of described terminal containing slot inside, described holding part is contained in the described displacement slot.

6. electric connector as claimed in claim 5 is characterized in that: described displacement slot has on one stopper and stopper once, and described holding part is spacing up and down between the stopper.

7. electric connector as claimed in claim 6 is characterized in that: twice stoppers of this displacement slot connect described front end face and form an installation opening, and described holding part is to be gone into by this installation opening group.

8. electric connector as claimed in claim 7, it is characterized in that: this terminal containing slot is formed with retaining wall in open front place, should go up retaining wall and constitute described limiting section, and the both sides of retaining wall extend downward the installation opening top respectively and constitute two side retaining walls respectively on this, and described holding part is kept out in these side retaining walls.

9. electric connector as claimed in claim 3 is characterized in that: the rear end in the described terminal containing slot is provided with a back stopper, and this back stopper is kept out first leg of the first U-shaped portion of support in the strain of terminal.

10. electric connector as claimed in claim 1 is characterized in that: the base portion both sides of this each terminal are provided with some holding parts, and the bottom of this each terminal containing slot is formed with holding slot in the both sides of each open front; This holding parts is contained in the corresponding holding slot.

11. electric connector as claimed in claim 1 is characterized in that: this weld part is to bend earlier horizontal-extending downwards from base portion one end.