CN1103129C

CN1103129C - Self-aligning electrical connector and electrical connector assembly having same

Info

Publication number: CN1103129C
Application number: CN 95107332
Authority: CN
Inventors: 浅川和重
Original assignee: Whitaker LLC
Current assignee: Whitaker LLC
Priority date: 1994-06-10
Filing date: 1995-06-09
Publication date: 2003-03-12
Anticipated expiration: 2015-06-09
Also published as: MY124276A; JP3377060B2; JPH07335339A; CN1118526A; KR100329979B1

Abstract

A floating electric connector with an effective position displacement compensation mechanism and a suitable stopper. A floating electric connector 10 capable of fitting to a bottom entry electric connector has two pairs of upper and lower housings and a receptacle contact. The receptacle contact includes a receptacle supported in the upper housing and acceptably forming a tab contact and a base body forced to insert into the lower housing 12 for setting, and both are connected by a spring 15 so as to be capable of floating the upper and lower housings each other. A control part for preventing the floating of the fitting surface side of the upper housing is formed in the trunk 18 continuing to the spring, and engaging mechanisms for preventing the falling down of the upper housing are formed in the upper and lower housing.

Description

Self-aligning electrical connector and have the electric coupler component of this connector

The present invention relates to connector, relate in particular to the electrical connection module that is electrically connected the floatation style connector of usefulness between the printed circuit board (PCB) and has this connector.

The electric connector that is electrically connected usefulness between the printed circuit board (PCB) is known various structures, for example have a kind ofly be installed on the printed circuit board (PCB), from inboard connector and the chimeric with it so-called lower end interposed electrical connector that matches that insert of printed circuit board (PCB).Be lower end interposed electrical connector chimeric surface towards the connector bottom surface and can with the corresponding position of the chimeric surface of printed circuit board (PCB) on form opening.As the bottom plug-in connector, can enumerate for example to open in fact and wait example flat 2-41374 number.

Can be installed on the printed circuit board (PCB) of pairing with the matching connector of lower end interposed electrical connector tabling.The contact that covers two connectors of offset part between the printed circuit board (PCB) is not a contact but can contacts within the specific limits, and the side in two connectors preferably can float with respect to the opposing party.

The lower end interposed electrical connector is used for the connection between the equitant or roughly perpendicular printed circuit board (PCB), particularly under latter event, do not have such matching connector with contact, it has active position displacement compensation mechanism with lower end plug-in connector tabling the time.Require to compensate the offset of three-dimensional as position displacement compensation mechanism.Particularly in relocatable connector (floatation style connector) of offset compensation usefulness, must in position form block with the restriction domain of walker.

Self-aligning electrical connector of the present invention has the lower casing that is arranged on the printed circuit board (PCB), be positioned at this lower casing roughly the top upper casing and by lower casing extension this on by lower casing supported on this contact, but this contact is connecting lower casing on this by resilient spring portion floating ground, said floatation style connector is characterised in that: above-mentioned upper casing reaches the place ahead of above-mentioned lower casing, cover on the outer surface of lower casing both sides thereby extend downwards in the wings simultaneously, and include the interlock mechanism of lower casing.

In addition, electric coupler component of the present invention is by being installed in the self-aligning electrical connector on the first circuit board and being installed on the second circuit board with this first circuit board approximate vertical and constituting with the lower end interposed electrical connector of above-mentioned self-aligning electrical connector tabling, this electric coupler component is characterised in that: above-mentioned floatation style connector is equipped with the lower casing that is arranged on the first circuit board, and the upper casing that always extends to interposed electrical connector tabling position, above-mentioned lower end is stretched out in the place ahead that is positioned at this lower casing of direction on this lower casing; Thereby said upper casing extension downwards in the wings covers on the outer surface of lower casing both sides; And include the interlock mechanism of lower casing.

The lower end interposed electrical connector has the inserted sheet contact, and can with the floating type mating electrical connector tabling that receptacle contacts is arranged.

Self-aligning electrical connector has two shells up and down, and receptacle contacts disposes along two shells.Lower casing is littler and be positioned at the rear of upper casing than upper casing.

Receptacle contacts has can accommodate inserted sheet and by the jack portion (contact site) that upper casing supported, also have the base portion that is supported by lower casing.Between jack portion and base portion, be connected, can float so go up between the lower casing by spring portion.Receptacle contacts has near the retainer that is inserted into the upper casing inside bottom wall.The effect of block when retainer rises from upper casing chimeric surface one side.In addition, thereby upper casing extends downwards in the wings and covers on lower casing two outer surfaces, and last lower casing has interlock mechanism in this position.Interlock mechanism plays block downwards when the chimeric surface of upper casing lands.

Fig. 1 has expressed the self-aligning electrical connector of the present invention's most preferred embodiment, and (a) vertical view, (b) are that front view, (c) are that end view, (d) show contact is configured in part sectioned view on the shell section.

Fig. 2 show can with the lower end interposed electrical connector of electric connector tabling among Fig. 1, be that front view, (b) are that upward view, (c) are that end view, (d) are and the similar part sectioned view of Fig. 1 (d) (a).

Fig. 3 shows the situation of the over cap of the electric connector among Fig. 2 being removed front and back, and it is and the similar part sectioned view of Fig. 1 (d).(a) show the preceding situation of removing, (b) show the situation after removing.

Fig. 4 is the chimerism between the electric connector that illustrates among Fig. 1 and Fig. 2, and it is and the similar part sectioned view of Fig. 1 (d).

Among the figure, 10: self-aligning electrical connector

11: upper casing

12: lower casing

13: receptacle contacts

15: spring portion

22,23: interlock mechanism

100: first circuit board

200: second circuit board

Below the self-aligning electrical connector that present invention will be described in detail with reference to the accompanying and the illustrated embodiments of electric coupler component.

Fig. 1 and Fig. 2 show respectively first connector of the present invention (self-aligning electrical connector) 10 and can with second connector (jack type electric connector) 30 of this first connector tabling.

As shown in Figure 1, first connector 10 has: two shells, promptly bigger upper casing 11 and less lower casing 12; And the receptacle contacts 13 of passing through these two shells configurations.Shown in Fig. 1 (c), upper casing 11 is positioned at lower casing 12 tops and forwards extends.

Shown in Fig. 1 (d), receptacle contacts 13 is equipped with: accommodate the jack portion (contact site) 14 that cooperates inserted sheet (cooperation contact site); Be connected in the jack portion 14 the spring portion 15 of extending to an opposite side with chimeric surface; Be housed in the base portion 17 in the lower casing 12; The stem portion 18 that connects spring portion 15 and base portion 17; And extend the welding foot 19 that can insert printed circuit board through-hole downwards by base portion 17.The base portion 17 that receptacle contacts 13 has a relative foot 19 has two kinds of receptacle contacts 13a, 13b of diverse location, and these receptacle contacts are interconnected in shell, so foot 19 is also interconnected.In addition, shown in Fig. 1 (b), in the foot 19 of a part of receptacle contacts 13, be formed with tortuous 20.

The jack portion 14 of receptacle contacts 13 is supported in the upper casing 11, and on the other hand, base portion 17 is fixed on the lower casing 12 by being pressed into portion 16.Therefore, upper casing 11 can float with respect to lower casing 12 because of the effect of the spring portion 15 of deflection that both are connected.

By Fig. 1 (d) as can be known, the upper end of the stem portion 18 that links to each other with spring portion 15 has near the diapire 21 that can be inserted into upper casing 11 and the retainer 22 of horizontal expansion above it.Retainer 22 has the function of block, and it works to stop upper casing when chimeric surface one side of upper casing 11 rises.In fact, shown in the section among Fig. 1 (b), thereby downward in the wings extension of upper casing 11 covers on two outer surfaces of lower casing 12, and last

lower casing

11,12 has interlock mechanism 22,23 in this position.These interlock mechanisms have the function of block, and they interact when chimeric surface one side direction of upper casing 11 falls and work to stop upper casing.

In addition, shell is made of upper casing 11 and lower casing 12, in manufacturing process they is formed an integral body, a part can be folded down during use and become two parts.

Second connector (lower end interposed electrical connector) 30 has been shown among Fig. 2.Second connector 30 has shell 31 and over cap 32, disposes inserted sheet contact 33 in shell 31.As mentioned above, thus inserted sheet contact 33 can be housed in be able in the receptacle contacts 13 of first connector 10 chimeric.

Shown in Fig. 2 (d), the welding foot 39 that inserted sheet contact 33 has inserted sheet portion 41, is pressed into portion 45 and can inserts printed circuit board through-hole.As Fig. 2 (b) and (d), inserted sheet contact 33 has the position of foot 39 different two kinds of

contact

33a, 33b, and these two kinds of contacts are staggered in the enclosure, so foot 39 also is staggered, shown in Fig. 2 (b).In addition, shown in Fig. 2 (b), a part of foot 39 has tortuous 38.

The lower end interposed electrical connector is installed on the printed circuit board (PCB) by welding method usually.Because on printed circuit board (PCB), be formed with above-mentioned opening, so, when the solder flux in carrying out welding sequence is handled, inject solder flux laterally, thereby might produce harmful effect the contact that is configured in the connector from the inboard by through hole.Therefore, paste a band in chimeric surface one side of connector usually.Perhaps, prevent that solder flux is toward getting on by being provided as the methods such as over cap of other parts.

As the sort of lower end plug-in connector that has an over cap of second connector 30 in, over cap is arranged to cover the inserted sheet portion of inserted sheet contact.In the inserted sheet contact of in the past this connector, the configuration that roughly is in line of the portion that is pressed into that fixed contact is used and the inserted sheet portion that is electrically connected usefulness.Therefore when being configured in the connector, the inserted sheet contact is configured to make inserted sheet to extend near the portion of being pressed into that is positioned at the shell upper wall downwards.The supporting inserted sheet plays in the portion that is pressed into when chimeric.

, this lower end plug-in connector in the past need improve.If adopt the above-mentioned structure that has earlier; because must there be suitable effective chimeric length in inserted sheet portion; should be positioned at lower position so cover the bottom surface of the over cap of inserted sheet portion, when being installed to connector on the printed circuit board (PCB), the bottom surface of over cap is positioned at the position that is projected into the printed circuit board (PCB) bottom surface.Therefore, when carrying out the solder flux processing, solder flux can be gone on the cap surface, thereby contact is produced harmful effect.The method that in the past was the height by increasing connector solves this problem, but owing to require this connector to be low dwarf forms, so the problems referred to above fail to solve.

Second connector 30 has solution to the problems described above.Shown in Fig. 2 (d), the portion that is pressed into 45 of inserted sheet contact 33 is located at the position of leaving inserted sheet portion 41.Be pressed in the cavity 43 that portion 45 is pressed into shell 31 and fix.There is suitable width in the inserted sheet portion 41 of inserted sheet contact 33, and its upper end-face edge is configured to be bearing in the groove 22 on the shell upper wall, both position consistency.Therefore can make connector short, the bottom surface of over cap is positioned at than the place, top, be in the position higher in the time of promptly on being installed to printed circuit board (PCB) than printed circuit board (PCB) bottom surface, thus can prevent solder flux along over cap to getting on.

Both sides at the shell 31 of second connector 30 are formed with wall 35, shown in Fig. 2 (a).On the outer surface of arm 35, form the auxiliary section 34 that cooperates usefulness with printed circuit board (PCB).In addition, over cap 32 is installed on the shell 31 removably.The opening (end illustrates among the figure) that has the bar 36 that can make arm 35 to pass on top 44, the portion of blocking 37 of bar 36 is stuck in the upper end of opening.

Second connector 30 that is installed on the printed circuit board (PCB) is shown in Fig. 3 (a).Over cap 32 is positioned at the position higher than the bottom surface of printed circuit board (PCB) 200, therefore as mentioned above, carry out preventing when solder flux is handled solder flux along over cap to getting on.

When using second connector, over cap 32 can be removed.As Fig. 3 (a) and (b) like that action bars 36 (referring to Fig. 2 (a)), remove the snib that blocks portion 37, release over cap along the pushing over cap 32 of direction shown in the arrow A among Fig. 3 (a) and at place, below shown in Fig. 3 (b), can remove over cap.

Fig. 4 shows the chimerism of first connector 10 and second connector 30.First connector 10 is installed on the upper surface 101 of printed circuit board (PCB) 100, and second connector 30 is installed on the upper surface 201 of printed circuit board (PCB) 200.First connector 10 by be formed on the printed circuit board (PCB) 200 opening 203 and with second connector, 30 tablings, jack portion 14 contacts with inserted sheet portion 41.As mentioned above, spring portion 15 has the function of compensation printed circuit board (PCB) 100,200 offsets.Jack portion 14 allows inserted sheet portion 41 broad wayss that skew is arranged slightly when contacting with inserted sheet portion 41.Therefore the offset of printed circuit board (PCB) 100,200 is compensated.

Foot

19,39 respectively with printed circuit board (PCB) 100,200 on circuit be electrically connected, so they also interconnect.

As mentioned above, provided most preferred embodiment of the present invention, but also can carry out various distortion or change by this professional.The present invention is not subjected to the restriction of above-mentioned most preferred embodiment.

If employing the present invention then can provide a kind of electric coupler component that has floatation style connector float function, simple in structure of the skew of compensated position effectively usefulness and have this connector.

The bigger upper casing that floatation style connector has less lower casing and is positioned at the upside of this lower casing and forwards extends; chimeric surface one side of upper casing plays block when moving up or down with respect to lower casing; so upper casing can exceedingly not move with respect to lower casing, thereby can protect contact.

Therefore, particularly in the electric coupler component of first printed circuit board (PCB) that connects arranged perpendicular and second printed circuit board (PCB), even for example when having unexpected power to be added on the second circuit board, the contact of floatation style connector can not damage yet.

Claims

1. self-aligning electrical connector, it has the lower casing that is arranged on the printed circuit board (PCB) and is positioned at the upper casing of this lower casing top, and extend contact by lower casing supported on this by lower casing on this, but this contact is being connected with last lower casing floating ground by resilient spring portion, this self-aligning electrical connector is characterised in that: above-mentioned upper casing extends to the place ahead of above-mentioned lower casing, covers on lower casing two outer surfaces thereby extend downwards in the wings simultaneously; And include the interlock mechanism of lower casing.

2. electric coupler component, it is by being installed in the self-aligning electrical connector on the first circuit board and being installed in respect to constituting on the vertical second circuit board of first circuit board and with the lower end interposed electrical connector of above-mentioned floatation style connector tabling, this electric coupler component is characterised in that: above-mentioned floatation style connector has the lower casing that is arranged on the first circuit board, and the place ahead of last this lower casing of direction that is positioned at this lower casing is outstanding, extends to the upper casing with interposed electrical connector tabling position, above-mentioned lower end always; Thereby described upper casing extension downwards in the wings covers on two outer surfaces of lower casing; And include the interlock mechanism of lower casing.

3. electric coupler component according to claim 2 is characterized in that, at the additional over cap in the auxiliary section of described lower end interposed electrical connector, the bottom surface of wherein said over cap is in the position higher than the bottom surface of described second circuit board.