CN2687902Y

CN2687902Y - Power supply connector

Info

Publication number: CN2687902Y
Application number: CN 200420001517
Authority: CN
Inventors: 黄三山; 吴亚军
Original assignee: Molex LLC
Current assignee: Shanghai Moshi Connector Co Ltd; Molex LLC
Priority date: 2004-01-09
Filing date: 2004-01-09
Publication date: 2005-03-23
Anticipated expiration: 2014-01-09

Abstract

The utility model provides a power supply connector, comprising an insulating shell, a first terminal, a second terminal and a switch terminal. The first terminal is provided with a contact portion and a contact rod; the first terminal is arranged on the insulating shell; the contact portion and the contact rod extend into the containing space of the insulating shell; the second terminal is provided with an elastic trip; the second terminal is arranged on the insulating shell; the elastic trip extends into the containing space of the insulating shell; the switch terminal is arranged on the insulating shell; the switch terminal is contacted with the contact rod of the first terminal; in this way, a normally closed switch is formed and is used for controlling the switch of the charging circuit of a data transmission socket.

Description

Power connector

Technical field

The utility model relates to a kind of power connector, especially the switch that relates to a kind of charge circuit in order to the control data transmission socket, when charging with power connector, the charge circuit of transfer of data socket can be opened, can only keep the power connector that single power supply enters.

Background technology

Standing on the general electronic installation have a power connector, be used for accepting the power supply that power supply unit is supplied, particularly on the portable electronic devices (as PDA, mobile phone, mobile computer), except the power supply that battery can be of short duration is arranged, more be equipped with power connector and be used for making battery charge, or, make that electronic installation can operate as normal directly to the electronic building brick power supply in the electronic installation.

See also Fig. 1, the bottom of existing mobile phone 10a can be equiped with a power connector (Dc-jack) 20a and a transfer of data socket (Data transfer I/O) 30a, this power connector 20a is used for connecting the power connector that is complementary, give mobile phone 10a the circuit of inside in order to power supply, the work of charging.This transfer of data socket 30a then can be used to connect the transfer of data plug that is complementary, so that carry out the work of transfer of data.

The two work that all can charge to battery of above-mentioned power connector 20a and transfer of data socket 30a, but can not charge to mobile phone 10a with power connector 20a and transfer of data socket 30a at one time, otherwise can cause the damage of battery.

In the previous design of NOKIA, power connector 20a and transfer of data socket 30a are fitting together of next-door neighbour, can prevent easily that so mobile phone 10a is at one time with power connector 20a and transfer of data socket 30a charge (because two of the power connector that is complementary and transfer of data plugs and can't be plugged in power connector 20a and transfer of data socket 30a at one time).

But in the above-mentioned design, what power connector 20a and transfer of data socket 30a must be close to fits together, make the position that is provided with of power connector 20a and transfer of data socket 30a be restricted, this power connector 20a and transfer of data socket 30a can't be arranged on different positions according to actual needs.If power connector 20a and transfer of data socket 30a are arranged on different position (as Fig. 2), power connector that is complementary and transfer of data plug then might be plugged in power connector 20a and transfer of data socket 30a at one time, make electric current excessive, and then cause the damage of battery.

Moreover above-mentioned existing power connector is that the pin portion with terminal is fixedly welded on circuit board, and bond strength is relatively poor between power connector and circuit board, makes being fixed on the circuit board that power connector can't be firm to be difficult to anti-plug.

Therefore, as from the foregoing, above-mentioned existing power connector on reality is used, obviously has inconvenience and exists with defective, and can be improved.

Summary of the invention

Main purpose of the present utility model, be to provide a kind of power connector, it can solve the problem that duplicate supply enters simultaneously, can effectively avoid the situation that power supply is excessive, battery damages to take place, and power connector and transfer of data socket need not limit to closely and fit together, and the setting that makes power connector and transfer of data socket is than tool elasticity.

Another purpose of the present utility model, be to provide a kind of power connector, it is the housing shape with second terminal design, can utilize the whole bottom surface of metal shell to be welded on the circuit board, bond strength is preferable between power connector and the circuit board, make and plug being fixed on the circuit board that this power connector can be firm than ability.

In order to realize above-mentioned purpose, the utility model provides a kind of power connector, comprising: an insulation shell, and it has an accommodation space; One the first terminal, it has a contact site and a contact lever, and this first terminal is arranged on this insulation shell, and this contact site and contact lever stretch in the accommodation space of this insulation shell; One second terminal, it has a shell fragment, and this second terminal is arranged on this insulation shell, and this shell fragment stretches in the accommodation space of this insulation shell; One switch terminal, it is arranged on this insulation shell, and this switch terminal stretches in the accommodation space of this insulation shell, and this switch terminal contacts with the contact lever of this first terminal, constitutes a normally closed switch by this.

For enabling further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet institute's accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.

Description of drawings

Fig. 1 is arranged at the stereogram of mobile phone for existing power supply connector and transfer of data socket;

Fig. 2 is arranged at the stereogram of another kenel of mobile phone for existing power supply connector and transfer of data socket;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is the three-dimensional exploded view of another angle of the utility model;

Fig. 5 is a stereogram of the present utility model;

Fig. 6 is the stereogram of another angle of the utility model;

Fig. 7 is a rearview of the present utility model;

Fig. 8 is the end view of switch normally off of the present utility model;

Fig. 9 is the end view of switch opens state of the present utility model.

Embodiment

The utility model provides a kind of power connector, this power connector can be arranged on the circuit board, and can electrically connect mutually with a power connector that is complementary, come from the power supply of this power connector that is complementary with acceptance, and can make the circuit normal operation on the circuit board.

See also Fig. 3, Fig. 4, Fig. 5 and Fig. 6, power connector of the present utility model includes an insulation shell 10, a first terminal 20, one second terminal 30 and a switch terminal 40, wherein this insulation shell 10 is to make with plastic material, it has one can be for the front end face 101 and the rear end face 102 of the power connector insertion that is complementary, be connected with a perisporium 103 between this front end face 101 and this rear end face 102, this insulation shell 10 also forms an accommodation space 104 that is positioned at 102 of front end face 101 and rear end faces, and these accommodation space 104 front ends are opening-like.In present embodiment, this insulation shell 10 shape that roughly is rectangle, so this perisporium 103 can be divided into upper and lower and left and right wall.

In addition, form one first holddown groove 105 and one second holddown groove 106 (as Fig. 7) at rear end face 102 places of this insulation shell 10, this second holddown groove 106 is located at this first holddown groove, 105 1 sides (right side), these

holddown grooves

105 and 106 proper depth that extends internally.Front end face 101 4 limit outer rims in this insulation shell 10 are formed with flange 107 in addition, and are provided with a locking member 108 in perisporium 103 1 sidewalls of this insulation shell 10, and this flange 107 and locking member 108 can be in order to locate second terminal 30.

This first terminal 20 is to make with conductivity good metal material, and it has one first body 201, a contact site 202, one first pin portion 203 and a contact lever 204.This first body 201 be one with first holddown groove, the 105 corresponding plate bodys of this insulation shell 10.This contact site 202 is a cylinder, and this contact site 202 is connected in first body, 201 front sides, and horizontal extension forward.This first pin portion 203 is connected in first body, 201 rear sides, and bending is extended downwards.This this contact lever 204 is the stock body, and this contact lever 204 is connected in first body, 201 1 sides, and horizontal extension forward, and is roughly parallel with contact site 202.

First body 201 of this first terminal 20 is embedded and is fixed in first holddown groove 105, and on this first body 201 and be equipped with bossy body 205, can be forced into first holddown groove, 105 inwalls and its generation and interfere, make this first terminal 20 firm being arranged on this insulation shell 10.The contact site 202 of this first terminal 20 and contact lever 204 stretch in the accommodation space 104 of this insulation shell 10, and this contact site 202 can be in order to reach electric connection with the termination contact of the power connector that is complementary.203 in the first pin portion of this first terminal 20 stretches out outside this insulation shell 10, so that be welded on the circuit board, makes the first terminal 20 and circuit board reach electric connection.

This second terminal 30 is made with conductivity good metal material, and it has the metal shell 301 of a sealing, and this metal shell 301 has upper and lower and left and right four sidewalls.And on the upper side wall of this metal shell 301, offering one first opening 302, a side of this first opening 302 is extended with first shell fragment 303 of a downward-sloping bending.Offer one second opening 304 on the left side wall of this metal shell 301, a side of this second opening 304 is extended with second shell fragment 305 that slopes inwardly and bend.A side that offers one the 3rd opening, 306, the three openings 306 on the right side wall of this metal shell 301 be extended with one slope inwardly bending and with these locking member 108 corresponding clamping sheets 307.

The metal shell 301 of this second terminal 30 is coated on insulation shell 10 outsides, and these metal shell 301 front ends contact at this insulation shell 10 flange 107 trailing edge and locate, and the clamping sheet 307 that makes this second terminal 30 be connected in this insulation shell 10 locking member 108 leading edge and locate, prevent that by this flange 107 and locking member 108 second terminal 30 from producing forward and backward displacement, is arranged on this insulation shell 10 these second terminal, 30 firm clampings.First shell fragment 303 of this second terminal 30 and second shell fragment 305 then can see through default corresponding holes 109,110 on the insulation shell 10 and stretch in the accommodation space 104 of this insulation shell 10, reach electric connection so that contact with the another terminal of the power connector that is complementary.Metal shell 301 bottom surfaces of this second terminal 30 then can be welded on the circuit board, make this second terminal 30 reach electric connection with circuit board.

This second terminal 30 is provided with a shell fragment 303 at least, and this preferred embodiment is provided with two shell fragments 303,305, therefore, when this second terminal 30 is arranged on this insulation shell 10, make this two shell fragment 303,305 all be positioned at this accommodation space 104, can be in contact with one another, promptly adopt multijunction mode with the power connector that is complementary, with the power connector guaranteeing second terminal 30 and the be complementary electrical connection between the two, and can increase chucking power.

This switch terminal 40 is to make with conductivity good metal material, it has one second body 401, one second pin portion 402 and an elastic arm 403, this second body 401 is flat plate body, and this second pin portion 402 is connected in this second body, 401 rear sides, and bending is extended downwards.This elastic arm 403 is connected in this second body, 401 front sides, and bending is extended forward, and these elastic arm 403 1 ends form free end, and are fixed with an insulator 404.

Second body 401 of this switch terminal 40 is embedded and is fixed in second holddown groove 106, and this switch terminal 40 is arranged on this insulation shell 10.The elastic arm 403 of this switch terminal 40 and insulator 404 are to stretch in the accommodation space 104 of this insulation shell 10, and this elastic arm 403 and insulator 404 also are arranged in the insertion path of the power connector that is complementary.This switch terminal 40 is positioned at this first terminal 20 outsides, and the elastic arm 403 of this switch terminal 40 contacts (as Fig. 8) with contact lever 204 outer rims of this first terminal 20, constitute a normally closed switch by this, this open relation and the suitable electric connection of transfer of data socket (not shown) charge circuit can be in order to the switches in control data transmission charging socket loop.402 in the second pin portion of this switch terminal 40 stretches out outside this insulation shell 10, so that be welded on the circuit board, makes this switch terminal 40 reach electric connection with circuit board.

In general, this first terminal 20 can receive the positive supply that comes from the power connector that is complementary, and this second terminal 30 then can be used as earthy terminal (or receiving the negative supply that comes from the power connector that is complementary).Certainly, also can utilize this second terminal 30 to receive and come from the positive supply of the power connector that is complementary, and utilize this first terminal 20 as earthy terminal (or receiving the negative supply that comes from the power connector that is complementary).

When the power connector that is complementary fashionable toward accommodation space 104 interpolations of insulation shell 10, the terminal of the power connector that this is complementary can with the shell fragment 303 of this second terminal 30,305 contact, finish the action of ground connection, and the another terminal of the power connector that the contact site 202 of these the first terminal 20 front ends can be complementary institute is sheathed, thereby can receive the power supply that comes from the power connector that is complementary, therefore can see through above-mentioned the first terminal 20, second terminal 30 receives and comes from the power supply that power connector transmitted that is complementary, electrically connect mutually by the pin portion 203 of the first terminal 20 and metal shell 301 bottom surfaces of second terminal 30 and the circuit on the circuit board respectively again, reach the purpose that receives power supply.

When the power connector that is complementary is not plugged in this power connector as yet, the elastic arm 403 of this switch terminal 40 contacts with the contact lever 204 of this first terminal 20, constitute a normally closed switch, control data transmission charging socket circuit closed, can carry out charging work normally, therefore when the transfer of data plug was plugged in the transfer of data socket, power supply can transfer to battery by transfer of data charging socket loop, constitute a complete loop by this, then can utilize the transfer of data socket to carry out charging work.

Have only, when the power connector that is complementary fashionable toward accommodation space 104 interpolations of insulation shell 10, the terminal of the power connector that this is complementary can contact the elastic arm 403 free-ended insulators 404 (as Fig. 9) of this switch terminal 40 simultaneously, this insulator 404 and elastic arm 403 free ends are outwards moved, this elastic arm 403 separates with the contact lever 204 of this first terminal 20 immediately, this switch is opened, and then makes transfer of data socket (not shown) charge circuit disconnect.

So; when the power connector that is complementary is plugged in power connector of the present utility model; when utilizing this power connector to advance the work of charging; the charge circuit of transfer of data socket is disconnected immediately; make power supply transfer to battery by transfer of data charging socket loop again; the work that can only utilize power connector to charge this moment; and can't utilize power connector and transfer of data socket at one time electronic installations such as mobile phone to be charged; so the utility model can only be kept single power supply and enter; do not have the situation generation that many power supplys enter simultaneously; and do not have the shortcoming that causes battery to damage, be the safeguard measure an of the best.

Moreover, the utility model is the housing shape with second terminal, 30 designs of power connector, it can utilize the whole bottom surface of metal shell 301 to be welded on the circuit board, bond strength is preferable between power connector and the circuit board, make being fixed on the circuit board that power connector can be firm, power connector is difficult for generation and becomes flexible, rocks, and plugs than ability.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection range of the utility model accompanying Claim.

Claims

1, a kind of power connector is characterized in that, comprising:

One insulation shell, it has an accommodation space;

One the first terminal, it has a contact site and a contact lever, and this first terminal is arranged on this insulation shell, and this contact site and contact lever stretch in the accommodation space of this insulation shell;

One second terminal, it has a shell fragment, and this second terminal is arranged on this insulation shell, and this shell fragment stretches in the accommodation space of this insulation shell;

One switch terminal, it is arranged on this insulation shell, and this switch terminal stretches in the accommodation space of this insulation shell, and this switch terminal contacts with the contact lever of this first terminal, constitutes a normally closed switch by this.

2, power connector according to claim 1, it is characterized in that, this the first terminal has one first body and one first pin portion, this contact site and contact lever are connected in this first body, this insulation shell is formed with one first holddown groove, this first body is fixed in this first holddown groove, and this first pin portion stretches out outside this insulation shell.

3, power connector according to claim 1 is characterized in that, this second terminal is provided with another shell fragment, and this another shell fragment stretches in the accommodation space of this insulation shell.

4, power connector according to claim 1 is characterized in that, this second terminal has a metal shell, and this shell fragment is extended by metal shell, and this metal shell is coated on this insulation shell outside, and this metal shell also is connected in this insulation shell.

5, power connector according to claim 4 is characterized in that, the metal shell of this second terminal is provided with the clamping sheet, and this insulation shell is provided with corresponding locking member, and this clamping sheet is connected in this locking member.

6, power connector according to claim 1, it is characterized in that, this switch terminal has one second body, one second pin portion and an elastic arm, this second pin portion and elastic arm are connected in this second body, this free end of elastic arm also is fixed with an insulator, this insulation shell is formed with one second holddown groove, this second body is fixed in this second holddown groove, this second pin portion stretches out outside this insulation shell, and the elastic arm of this switch terminal and insulator stretch in the accommodation space of this insulation shell.