Electrical connector for circuit board and electrical cnnector assembly
Technical field
The present invention relates to a kind ofly be installed in substrate on the circuit substrate with electrical cnnector and have this connector and the electrical cnnector assembly of intermediary electrical connector.
Background technology
For example, known in patent documentation 1 have a kind of electrical cnnector assembly with intermediary electrical connector (below be called " intermediate connector ") and substrate with electrical cnnector (below be called " board connector ").In this patent documentation 1, intermediate connector has the intermediate member by a plurality of substrate shapes of not shown housings support, opposed two edge parts along each intermediate member are arranged with the brace that is called connecting portion, when described intermediate connector and board connector were chimeric, the contact site of the terminal of this board connector was connected with described brace contact.
The terminal bifurcated of described board connector is two, and their leading section has contact site, and these two contact sites are made Elastic Contact from the two sides of middle parts and the brace portion of described intermediate member.Adopt the assembly of this intermediate connector and board connector, even two connectors on the thickness direction of described intermediate member some depart from by chimeric, or after chimeric, on this direction, be subjected to external force, at least one side in two contact sites of each terminal also is bound to contact reliably with the brace of intermediate member with contact pressure, makes the connection of electric property stable.
Patent documentation 1: the Japan Patent spy opens the 2005-216695 communique
In the connector device part of patent documentation 1, in order to contact with the brace of intermediate member, each terminal has the contact site of the two sides side that is branched to this intermediate member.Therefore, on the same position on the terminal board column direction, can't be at the different terminal of the two sides of intermediate member side configuration.This means from connector on the whole number of terminals can reduce by half.
Although each terminal of patent documentation 1 is divided into two simply number of terminals is increased, but when connector along the thickness direction of intermediate member and under the situation of a deviation in driction when chimeric, or when after chimeric, being subjected to the external force of this direction, even the terminal of intermediate member one side side can contact with intermediate member with sufficient contact pressure, the contact pressure of the terminal of another side side also can be abundant inadequately, and contact can become unstable or not contact.In addition, even the terminal of described one side side, if connector is in the departing from towards the opposing party of described thickness direction when chimeric, it is insufficient or do not contact so also can to become contact.
Summary of the invention
In view of the above problems, even the object of the present invention is to provide a kind of chimeric either direction on the thickness direction of intermediate member of connector to depart from or be subjected to board connector that the also available sufficient contact pressure of external force, terminal of this direction contacts with intermediate member and electrical cnnector assembly after chimeric with this connector and intermediate connector.
<board connector 〉
Board connector of the present invention is installed on the circuit substrate with a side of housing, and chimeric mutually with opposite side and intermediate connector, and housing is provided with the terminal that the brace portion of the intermediate member of a plurality of and this intermediate connector contacts.
Described board connector of the present invention, it is characterized in that, be formed with the receiving channel of the edge part of the intermediate member of admitting intermediate connector in the housing upper shed, the contact site of the terminal of described board connector is charged in the described receiving channel, be positioned at available contact pressure and described intermediate member position contacting, on the internal face of described receiving channel, the amount of charging into is admitted at described receiving channel less than the projection of the amount of charging into of described contact site on the direction of described intermediate member and is set on the position identical with contact site.
In the board connector of this formation, when with the other side's intermediate connector when chimeric with chimeric direction rectangular laterally, terminal produces the occasion that departs to the contact pressure direction of the intermediate member of middle connector, or when chimeric, do not have this lateral run-out but in chimeric back in the described occasion that transversely is subjected to external force, terminal can be separately towards the direction elasticity displacement that increases contact pressure, be absorbed in position in the internal face of receiving channel up to contact site.But, in the present invention, just have projection originally.Therefore, when described chimeric departing from takes place, or when being subjected to external force after chimeric, the further displacement of intermediate member is just stoped by described projection.And, on the position that displacement is prevented from, contact site also with the intermediate member Elastic Contact.And in the occasion that departs from round about, terminal is followed intermediate member on the direction that contact pressure reduces in the precompression scope, up to the opposition side internal face butt of receiving channel, thereby keep flexible contact.
In addition, in the present invention, because contact site and projection are positioned at same position on the admittance direction of intermediate member, therefore this projection works to middle parts as fulcrum, intermediate member can tilt around this fulcrum, can allow lateral deflection bigger between intermediate connector and the board connector, can enlarge when chimeric lateral run-out and chimeric after the corresponding scope of external force.In the present invention, contact site and projection need not strictly to be positioned at same position on the admittance direction of intermediate member, and both also can be located at the roughly the same position that has overlapping scope on this direction.
In the present invention, projection can be arranged on adjacent terminal each other in the orientation of terminal.Like this, projection is positioned at terminals of adjacent each other dispersedly, can reduce the butt pressure at projection and intermediate member place, and can on the terminal board column direction, contact equably with intermediate member, so the attitude stabilization of intermediate member, in addition, it is even that the contact pressure between brace portion and the terminal becomes.
In the present invention, can in two internal face sides of receiving channel terminal be set accordingly with the brace portion that on the intermediate member two sides of intermediate connector, forms, like this, not only number of terminals increases, and by contact on the two sides, lateral run-out when no matter chimeric and chimeric after lateral external forces towards where, all can guarantee the contact pressure of terminal, obtain stable contact condition.
In the present invention, the terminal of two of best described receiving channel internal face sides is alternately arranged on the terminal board column direction.Like this, the contact pressure of both direction also can distribute in the orientation of terminal equably.
<electrical cnnector assembly 〉
Electrical cnnector assembly of the present invention, comprise: intermediate connector, this intermediate connector supports a plurality of intermediate members with middle casing, on this intermediate member, a plurality of brace portion arranges along two opposed parallel edge parts of substrate, between the corresponding brace portion of two edge parts by the wire portion conducting; And board connector, this board connector is installed on the circuit substrate in a side, and chimeric mutually at opposite side and described intermediate connector, and housing is provided with a plurality of terminals that contact with the brace portion of described intermediate member.
Electrical cnnector assembly of the present invention, it is characterized in that, board connector is formed with receiving channel in the housing upper shed, this receiving channel is admitted an edge part of the intermediate member of intermediate connector, the contact site of the terminal of described board connector is charged in the described receiving channel, be positioned at available contact pressure and described intermediate member position contacting, on the internal face of described receiving channel, the amount of charging into is admitted at described receiving channel less than the projection of the amount of charging into of described contact site on the direction of described intermediate member and is set on the position identical with contact site.
In such the present invention, the intermediate member that can be intermediate connector is provided with brace portion on one side, and barricade is set on another side, corresponding therewith, board connector is provided with the terminal that contacts with described brace portion on an internal face of receiving channel, and the terminal that contacts with described barricade the setting of another internal face side.
Utilization is located at the circuit part that barricade on the another side made and be located at the brace portion conducting on the one side and is shielded well, and the terminal of the board connector that contacts with this barricade works as earth terminal.At this moment, contacting between this earth terminal and the barricade can tackle well aforesaid connector when chimeric lateral run-out and chimeric after same outward force, and be Elastic Contact all the time.
As mentioned above, in the present invention, the contact site of terminal is contacting with intermediate member in being received in receiving channel with contact pressure, even intermediate member is a deviation in driction on this contact pressure direction when connector is chimeric, or be subjected to the external force of this direction after chimeric, contact site also can increase on the direction of contact pressure and the intermediate member Elastic Contact, in addition, the projection that forms on the internal face of receiving channel also contacts with intermediate member, therefore the further displacement of intermediate member is limited, and can guarantee the contact pressure of contact site all the time.Because described projection works to middle parts as fulcrum, therefore intermediate member can be centroclinal with this projection, therefore, further expansion and intermediate connector and board connector on an above-mentioned direction when chimeric depart from chimeric after the corresponding scope of external force.In addition, though intermediate member towards another deviation in driction, contact site also can reduce to guarantee contact pressure on the direction of contact pressure, and follows intermediate member under this state.At this moment, the further displacement of intermediate member also can be limited because of another internal face of receiving channel, therefore can keep described contact pressure.In the present invention, if dispose terminal and projection symmetrically in the two sides of intermediate member side, intermediate member can major part be cancelled out each other on both direction in the influence of the displacement that departs from and caused by the external force after chimeric on the thickness direction when then connector was chimeric, thereby near neutral condition.
Description of drawings
Fig. 1 is as the board connector of the present invention's one example and intermediate connector the stereogram chimeric before chimeric with it.
Fig. 2 is the figure of the part in II-II cross section after the board connector of presentation graphs 1 and intermediate connector chimeric, presentation graphs 1.
Fig. 3 is the partial perspective view of the contact site of interior projection of the receiving channel of expression board connector and terminal.
Fig. 4 is the cutaway view of the form when being illustrated in the intermediate member of having admitted intermediate connector in the receiving channel of Fig. 3 with departing from.
Fig. 5 is the figure corresponding with Fig. 4, is the cutaway view of the variation of this example of expression.
(symbol description)
10 board connectors
12 receiving channels
12 ', 12 ", 12 " ' receiving channel
13 housings
15 terminals
The 15A contact site
19 projections
19 ', 19 ' ' A, 19 ' ' B, 19 " ' A, 19 " ' the B projection
30 intermediate connectors
31 (centre) housing
33 intermediate members
36A brace portion
37 barricades
Embodiment
With reference to the accompanying drawings example of the present invention is described.
Fig. 1 is the board connector 10 of this example of expression and the stereogram of the state of intermediate connector 30 before chimeric.In the form of Fig. 1, dispose the board connector 10 of identical formation with laterally zygomorphic position relation in the above and below of intermediate connector 30.The lower surface of the upper surface of board connector 10 up and the board connector 10 of below is provided with bead 11 at the connecting portion of terminal, and board connector 10 utilizes this bead 11 to link to each other with not shown circuit substrate.This board connector 10 forms the receiving channel 12 (with reference to the board connector 10 of below) of intermediate member 33 insertions of a plurality of confessions intermediate connector 30 described later in a side opposite with a side that is provided with bead 11.
The housing 30 of intermediate connector 30 comprises upper-part 31A and lower member 31B, by both be combined intos.On housing 31, groove 32 (with reference to Fig. 2) is formed on the position corresponding with the receiving channel 12 of described board connector 10, is inserted with the tabular intermediate member 33 of intermediate connector 30 therein.
Two board connectors 10 like this and intermediate connector 30 are connected 30 chimeric with described centre in the back that links to each other with circuit substrate at each board connector 10.Two board connectors 10 that link to each other with circuit substrate like this realize that by the intermediate member of intermediate connector 30 electric property links to each other.
Fig. 2 of the part in the II-II cross section of reference table diagrammatic sketch 1 describes the inside formation and the correlation circumstance of described board connector 10 and intermediate connector 30.
Fig. 2 only amplifies the left part in the II-II cross section of having represented Fig. 1, and in the connector of Fig. 1, the intermediate member 33 of Fig. 2 has number seen in fig. 1, and right part is and the symmetrical formation of left part.
In Fig. 2, the board connector 10 of the board connector of top 10 and below constitutes identical, and just above-below direction is configured on the contrary, therefore this to below board connector 10 describe.
Board connector 10 is that enclosure body 13 and the terminal that keeps terminal 15 are kept body 14 be combined intos.In Fig. 1, bead 11 is arranged on rectangular mutually both direction at the upper surface of connector or lower surface, is appreciated that thus terminal 15 also arranges on rectangular mutually both direction, but the transversely arranged form of expression among Fig. 2.In addition, be illustrated in the form of arranging on the both direction among Fig. 3.
The empty in the horizontal standard width of a room in an old-style house of enclosure body 13 is formed with a plurality of receiving channels 12 every ground, and this receiving channel 12 along extending with the rectangular direction of paper and running through up and down, utilizes two adjacent receiving channel 12 betweens to form partition walls 16 in Fig. 2.This receiving channel 12 is admitted the edge part of the intermediate member 33 of intermediate connector 30.On each partition wall 16, with the overhead standard width of a room in an old-style house of the rectangular direction of paper every and be absorbed in to the groove 17 (with reference to Fig. 3) of under shed thickness of slab direction along this partition wall 16.In addition, be formed with recess 18 at the lower surface of enclosure body 13, this recess 18 is accommodated and is kept terminal to keep body 14.
The terminal 15 that keeps body 14 to keep by terminal stretches out up and down, has contact site 15A on top, has the connecting portion 15B that is provided with bead 11 in the bottom.When keeping body 14, this terminal is housed in the described recess 18 and when this is kept, the major part on described top is accommodated by the groove 17 of described partition wall 16, but when the top of terminal was in free state, the contact site 15A that bends to convex charged in the described receiving channel 12 (with reference to Fig. 3).In this example, close mutually between laterally adjacent two terminals 15 top in Fig. 2 towards the left-right symmetric configuration with the contact site 15A that is convex, and be positioned at two inwall sides of each receiving channel 12.The contact site 15A of described two terminals 15 is cramping tabular intermediate member 33 described later flexibly.The bearing of trend of each receiving channel 12, be among Fig. 2 with the rectangular direction of paper on, the terminal 15 that is positioned at two internal face sides of receiving channel 12 is alternately arranged on this direction.Therefore, the groove 17 that the top of this terminal 15 with contact site 15A of terminal 15 is accommodated also alternately forms in the rectangular direction of two internal face upper edges of described receiving channel 12 and paper.
As can be seen from Figure 3, on the internal face of the receiving channel 12 that forms by described partition wall 16, be provided with the roughly projection 19 of semicircle tubular.Owing to be formed with groove 17 at these partition wall 16 overhead standard widths of a room in an old-style house every ground, so this projection 19 is positioned at this groove 17 each other, and the contact site 15A that promptly is positioned at the terminal 15 that is housed in this groove 17 each other.As shown in Figure 3, this projection 19 is at above-below direction, promptly be positioned at identical position (all be positioned at from the upper surface distance of partition wall and be the position of p), top with the contact site 15A of terminal 15 on intermediate member 33 enters the direction of receiving channel 12.Described projection 19 is from the charge into amount q of internal face in receiving channel 12 of receiving channel 12 amount of the charging into r less than described contact site 15B.
Intermediate connector 30 constitutes by keeping intermediate member 33 in the groove on being formed at housing 31 32.From Fig. 2 also as can be seen, housing 31 comprises upper-part 31A and lower member 31B, the claw 34B-1 of the elasticity engaging handle 34B that extends from lower member 31B is arranged being located on the step-like holding section 34A of upper-part 31A engaging, described upper-part 31A and lower member 31B are combined into one and form a housing 31.On this housing, be formed with the chimeric recess 35 that is used for chimeric described board connector 10.When the chimeric recess of this board connector 10 and this 35 was chimeric, the receiving channel 12 of board connector 10 was communicated with the groove 32 that runs through described upper-part 31A and lower member 31B up and down.As can be seen from Figure 2, the groove width of this groove 32 enlarges slightly towards the top, makes intermediate member 33 insert this groove 32 easily from the top, in addition, can allow intermediate member to tilt.
In Fig. 2, intermediate member 33 is presented down and is extended and have the tabular of width along what extend with the rectangular direction of paper, has terminal 36 on its one side (left surface among Fig. 2), and have barricade 37 on another side (the right surface among Fig. 2).The faciola shape parts that described terminal 36 usefulness are long up and down form, and open the compartment of terrain along the Width sky of described intermediate member 33 and are provided with a plurality of.This terminal 36 extends near the last lower limb of intermediate member 33, with the 36A of the brace portion conducting of last lower edge portion.On the position, upper, middle and lower of the left surface of described intermediate member 33, be provided with convex strip portions 37A, the 37B, the 37C that extend along the Width of this intermediate member 33.On this convex strip portions 37A, 37B, 37C, be formed with the retaining hole (not shown) that runs through up and down in position, described left surface, each terminal 36 is run through in the retaining hole that is pressed into described convex strip portions 37A, 37B, 37C to be kept at this.
Described barricade 37 covers the roughly whole zone on the right surface of intermediate member 33, is kept by a plurality of projection 39A, 39B, 39C.
Like this, in case having the intermediate member 33 of terminal 36 and barricade 37 is inserted from the top in the groove 32 of housing 31, just because the effect of the convex strip portions 38C of the convex strip portions 38B of pars intermedia and projection 39B and bottom and projection 39C and groove 32 is the state of being pressed into, and be maintained in the groove 32.This means that on the top that the groove width of slot part 32 enlarges slightly, intermediate member 33 does not contact with the internal face of groove 32, has the degree of freedom of variable bit.
Under intermediate member 33 is loaded into state in the housing 31, the upper limb side of this intermediate member 33 and lower edge side are outstanding from the bottom surface of the chimeric recess 35 of housing 31, when the chimeric recess of board connector 10 and this 35 was chimeric, the upper limb side of intermediate member 33 and lower edge side were positioned at the position of the receiving channel 12 that enters into this board connector 10.In case the upper limb side of intermediate member 33 and lower edge side enter in the receiving channel 12 of corresponding board connector 10, the 36A of brace portion of terminal 36 and the edge part of barricade 37 just contact with the contact site 15A of the corresponding terminal 15 of board connector 10.
Action to the board connector of this example and the intermediate connector chimeric with it describes below.
When on the contact pressure direction of middle connector 30 at terminal with desirable regular position and board connector 10 when chimeric, the intermediate member 33 of intermediate connector 30 is positioned in the receiving channel 12 of board connector 10 in the middle of the Width of this receiving channel 12, and the 36A of brace portion of intermediate member 33 contacts with the contact site 15A of opposed two terminals 15 of board connector 10 with the contact pressure that equates.Promptly, because intermediate member 33 is positioned at the neutral position in described receiving channel 12, and at the charge into amount r of the charge into amount q of the projection 19 that forms on the internal face of this receiving channel 12 in receiving channel 12 less than contact site 15A, so this projection 19 does not contact with intermediate member 33.
On the other hand, when the state that departs from the contact pressure direction at terminal when middle connector 30 and board connector 10 are chimeric, though or so that regular position is chimeric but when being subjected to external force in chimeric back on described direction, intermediate member 33 just can be come the position from neutral position deviation in described receiving channel 12.On this position of departing from, contact pressure becomes big on certainly can one in the terminal 36 of intermediate member 33 and barricade 37 and diminishes on another.If describedly depart from smallly, the described intermediate member 33 of official post of then using this contact pressure moves to the direction that correction departs from, and is kept on the position that does not have the contact pressure difference.
But, depart from bigger occasion described, only depend on described contact pressure difference can not realize the position correction of intermediate member 33 fully, before the contact pressure difference becomes greatly, described intermediate member 33 promptly with projection 19 butts of the internal face of receiving channel 12, also be subjected to counter-force from this projection 19 at this, utilize the contact pressure both sides' of this counter-force and contact site 15A the effect maintenance balance of exerting all one's strength, the result is that intermediate member 33 is kept in this position.At this moment, because contact site 15A and described projection 19 are positioned at same position on the chimeric direction of connector, therefore, as can be seen from Figure 4, this projection 19 works to middle parts 33 as fulcrum, makes this intermediate member 33 can be around these projection 19 inclinations.Therefore, corresponding with the degree of this inclination, the permission amplitude of middle parts 33 displacements is also increased.
The present invention is not limited to Fig. 1 to form shown in Figure 4, can carry out various distortion.For example, can change shape, size, the position of the projection that on the internal face of the receiving channel of board connector, forms.
In Fig. 5, the projection 19 ' that is symmetrically formed on the internal face of the left and right sides of the receiving channel 12 ' that is positioned at the right side is the shape with tabular surface, for example trapezoid cross section roughly.Thus, can strengthen the contact area of projection 19 ' and intermediate member 33, increase the intensity of projection 19 '.
In addition, the receiving channel 12 that is being positioned at Fig. 5 central authorities " left and right sides internal face on the projection 19 that forms " A, 19 " B, its height (amount of charging in receiving channel) is different.Like this,, because of being that terminal or barricade exist not simultaneously, contact object also can separately use at contact conditions.
Moreover, be positioned at the receiving channel 12 in Fig. 5 left side " ' left and right sides wall on the projection 19 that forms " ' A, 19 " ' B is located at the position that above-below direction departs from.But, two projections 19 " and ' A, 19 " ' B has lap on this direction, guarantee effect as fulcrum with this lap.Certainly, the contact site 15A of the terminal 15 of board connector 10 also is positioned at this lap on above-below direction.