CN103779730A

CN103779730A - Card connector

Info

Publication number: CN103779730A
Application number: CN201310493514.0A
Authority: CN
Inventors: 山方博文; 船井勇希; 竹岛英树
Original assignee: JST Mfg Co Ltd
Current assignee: JST Mfg Co Ltd
Priority date: 2012-10-24
Filing date: 2013-10-21
Publication date: 2014-05-07
Anticipated expiration: 2033-10-21
Also published as: TWI485929B; CN103779730B; JP2014086320A; JP5952162B2; TW201424133A

Abstract

Provided is a card connector which can prevent incorrect connection of heterogenous cards. The connector (10) comprises a housing (1), a cover plate (2), a plurality of contacts (3), and a push/push ejecting mechanism (4). The housing is provided with a concave portion (11). The concave portion (11) is used for a first card (5) to insert, and the first card is arranged with a first connecting terminal (5t) in a groove (5s) with an opening on an end face. The cover plate (2) covers the housing (1). The plurality of contacts (3) are configured on a deep portion of the housing (1) and are covered by a head portion (12h) which can be inserted into the groove (5s) of the first card (5). The push/push ejecting mechanism (4) can pull out the inserted card. An inclined surface (41s) is formed on a clamping pawl (410) which forms an L-shaped sliding component (41) of the ejecting mechanism (4). When inserting a second card (6) by mistake, the second card (6) being small in appearance and thin in thickness compared with that of the first card (5), the second card (6) is disposed on the clamping pawl (410) and is abutted against with the front surface of the head portion (12h). The second card (6) cannot contact with the plurality of contacts (3).

Description

Card connector

Technical field

The present invention relates to card connector.Be particularly related to the structure of the card connector that stops the incorrect connection that foreign peoples blocks in the case of during different from regular card with thickness profile foreign peoples card is inserted into connector by mistake.

Background technology

Adopt flash memory as storage medium as the storage card of card type storage device.Storage card is very small-sized, has advantages of to read and write data that power consumption is so hardly.In addition, because storage card has advantages of while reading and writing data without FD(floppy drive) and MO(photomagneto disk) etc. such drive unit, thereby popularize as paying attention to the recording medium of power consumption and portable for example digital camera.

In recent years digital camera can adopt the high speed continuous shooting of electronic shutter.Therefore, possess can be for the SD(Secure Digital of shooting conventionally for the digital camera of the corresponding type of high speed continuous shooting: safe digital) the fast XQD(registered trade mark of writing speed used of card and high speed continuous shooting) block two card connectors of insertion respectively.For example, these card connectors are clipped in the middle printed base plate and are arranged on the two sides of printed base plate.

The profile of SD card and XQD card is different with thickness.Compared with XQD card, SD card forms to obtain the little and thin thickness of profile.For example, in TOHKEMY 2004-206963 communique (below, be called patent documentation 1), disclose and the card of multiple types different with thickness such profile can be arranged on to a card connector on card connector.

The card connector of patent documentation 1 has the housing being formed by connector body and cover.This housing is separated up and down by dividing plate, and SD card and Memory Stick DUO(registered trade mark can be optionally installed) card.The ejecting mechanism that this card connector possesses has the card launched portion on the upper strata that is positioned at housing and is positioned at the extension of the lower floor of housing.Card launched portion engages with the front end face of SD card.And, extension than the bottom of card launched portion outstanding and with the front end face butt of Memory Stick DUO card.Extension ratio card launched portion forwards (card insert opening side) is outstanding.When SD card and Memory Stick DUO card are installed in card connector, utilize such extension to make card rear end face consistent from the outstanding amount of card connector (degree).

But, in the card connector of patent documentation 1, for fear of interfering with the extension of the front end face butt of Memory Stick DUO card and dividing plate and housing bottom surface, between extension and dividing plate and housing bottom surface, be formed with predetermined gap.Therefore, the height step-down of extension, extension only with a part of butt of front end face of card, in the time that card is inserted or the time of discharge card and the butt of extension become easy disengagement.If the butt of extension and card is thrown off, there are such misgivings: the front end of card enters in the gap between extension and dividing plate or housing bottom surface, hinder that card is normal to be inserted or discharge, or card and ejecting mechanism impaired.

In order to eliminate above-mentioned undesirable condition, in TOHKEMY 2012-174644 communique (below, be called patent documentation 2), disclose a kind of card connector, it can be installed the first card and second varying in size and block, can carry out stable card and insert and block and discharge, and can realize slimming.

The card connector of patent documentation 2 possesses: multiple contacts; Locking piece, it can detect the width of the first card and move from primary importance to the second place; The actuator that can rotate from primary importance to the second place, it at least comprises the opening that passes through that can cross for the second cartoon; Dividing plate, it can move to the second place from primary importance, and the first card and the second card are separated up and down; And ejecting mechanism, it at least has and can fasten the relay part that fastens connecing with the first card and second, fastening relay part has and can block press surface with the first card press surface and second of the first card and the second card front end face butt separately, the second card press surface is formed at movable metal parts, and movable metal parts is formed as: cover the first card press surface during in primary importance at the second card press surface.

The card connector of patent documentation 1 or patent documentation 2 is configured to: cantilevered contacts is contacted with the splicing ear being made up of metal forming exposing in the end of card.But the internal arrangement that XQD is stuck in the groove that is opened on end face has splicing ear.Therefore, be difficult to adopt the structure of patent documentation 1 or patent documentation 2 disclosed card connectors to share SD card and XQD card, as described above, the card connector that the card connector of preferably SD card being used and XQD card are used is arranged on the two sides of printed base plate.

On the other hand, as described above, compared with XQD card, SD card forms to obtain the little and thin thickness of profile, therefore allows easily SD card to be inserted in the card connector that XQD card uses by mistake.In the case of SD card being inserted into by mistake in the card connector that XQD card uses, exist SD card to make the misgivings of the contact damage of the depth portion that is configured in card connector.

Summary of the invention

The present invention is just in view of such problem completes, its object is to provide a kind of card connector, in the case of during foreign peoples's cards different from regular card with thickness profile is inserted into connector by mistake, described card connector stops the incorrect connection of foreign peoples's card.

For solving the technical scheme of problem

(1) embodiments of the present invention are a kind of card connectors, first card that can insert the essentially rectangular with predetermined profile and thickness in this card connector with form compared with the first card the second card of the essentially rectangular of the little and thin thickness of profile, the described first internal arrangement that is stuck in the groove that is opened on an one end face has multiple the first splicing ears, described the second card is arranged with multiple the second splicing ears that expose

Described card connector possesses:

Tabular housing, it has the recess for described the first card or described the second card plug;

Cover plate, it covers the recess of described housing;

Multiple contacts, they are configured in the depth portion of described housing, outstanding towards the opening of described recess, and the head that can be inserted in the groove of described the first card covers; And

Push away/push away the ejecting mechanism of type, it is configured in the one-sided of described recess, described the first card being inserted in described recess can be discharged,

Described ejecting mechanism has the slide unit of the band plate-like moving along a sidewall of described housing,

Described slide unit has engagement pawl, described engagement pawl from the one-sided central portion towards this recess of described recess outstanding and with the end edge butt of described the first card or described the second card,

The junction that fastens in described engagement pawl has inclined plane, and in the time that described the second card is inserted in described recess, this second card is upper to described inclined plane,

In the time that described the first card is inserted in described recess, described engagement pawl moves to the below of multiple described contacts, and described the first splicing ear is connected with described contact,

When by described the second card while being inserted in described recess, this second end edge of card and the end edge butt of described head and stop this second to block and enter.

(1) card connector of execution mode has the engagement pawl with the first card or the second end edge butt blocking, the junction that fastens in engagement pawl has inclined plane, in the time that the second card is inserted in recess, the second card is upper to described inclined plane, therefore, in the time that the second card is inserted in recess, the end edge of the second card and the end edge butt of head, can stop the second card to enter.And then, can protect contact.

(2) in the card connector above-mentioned (1) Suo Shu, at the square slot part midway with otch formation of the described first side of blocking, described slide unit possesses cantilever-shaped leaf spring, the base end part of described leaf spring is fixed on this slide unit, described leaf spring has the bend that bends to V word shape, described bend is a side application of force to described the first card flexibly, and described bend can be in and out of the slot part of described the first card.

According to the execution mode of (2), in the time that the first card is inserted in recess, bend is out of shape rear recovery and can makes bend enter into the slot part of the first card.In the process being discharged from from recess at the first card, the bend of leaf spring engages with the slot part of the first card, can prevent that the first card from flying out.

(3) in the card connector described (1) or (2) Suo Shu, there is the cam path of heart shape in a side of described slide unit, described ejecting mechanism also has: compression helical spring, and it is held in described housing, to blocking the direction of discharging to the described slide unit application of force by described first; And guide rod, the cam path of one end and described heart shape links, and the side that is supported in freely described housing is rotated in the other end.

According to the execution mode of (3), in an end engaging of guide rod, during in the starting point of the cam path of heart shape, the terminal part of the bend of leaf spring is configured to outstanding to recess a little.In the time that the first card is inserted in recess, end edge and the engagement pawl butt of the first card.

In the time that the first card is further inserted, the bend of leaf spring enters into the slot part of the first card.And then an end of guide rod overcomes the active force of compression helical spring and moves the going on stroke of cam path of heart shape in linkage along the parallel of direction of insertion with slide unit.

The V-shaped valley that one end engaging of guide rod forms in the summit of the cam path at heart shape, the position of slide unit is fixed thus.And the bend of leaf spring enters into the slot part of the first card, maintain thus the installment state of the first card.Like this, the card connector of the execution mode of (3) can lock the first card.

Accompanying drawing explanation

Fig. 1 is the stereogram that the structure of the card connector of an embodiment of the invention is shown, (A) of Fig. 1 is the state diagram before the first card is inserted, and (B) of Fig. 1 is the state diagram of having inserted the first card.

Fig. 2 shows the figure of the structure of the first card of the card connector that is suitable for described execution mode, and (A) of Fig. 2 is the vertical view of the first card, and (B) of Fig. 2 is the left side view of the first card.

Fig. 3 shows the vertical view of the structure of the card connector of described execution mode.

Fig. 4 shows the front view of the structure of the card connector of described execution mode.

Fig. 5 shows the upward view of the structure of the card connector of described execution mode.

Fig. 6 shows the vertical view of the structure of the card connector of described execution mode, and is the state diagram of having unloaded cover plate.

Fig. 7 shows the stereogram of the structure of the card connector of described execution mode, and is the state diagram of having unloaded cover plate.

Fig. 8 shows the stereo decomposing installation diagram of the structure of the card connector of described execution mode.

Fig. 9 shows the stereogram of the structure of the card connector of described execution mode, and is the just upper state diagram after on being formed at the inclined plane of engagement pawl of the second card.

Figure 10 shows the stereogram of the structure of the card connector of described execution mode, and be the second card just on being formed at the inclined plane of engagement pawl after the state diagram of end edge butt of the second end edge blocking and head.

Figure 11 is the longitudinal section of the card connector of described execution mode, (A) of Figure 11 is i.e. just the first state diagram blocking before being inserted in card connector, (B) of Figure 11 is inserted in card connector and the end edge of the first card and the state diagram of engagement pawl butt by the first card, the state diagram that (C) of Figure 11 further inserts the first card from the state of Figure 11 (B), (D) of Figure 11 is the state diagram that the first splicing ear of the first card is connected with contact.

Figure 12 is the longitudinal section of the card connector of described execution mode, (A) of Figure 12 is i.e. just the second state diagram blocking before being inserted in card connector, (B) of Figure 12 is inserted in card connector and the end edge of the second card and the state diagram of engagement pawl butt by the second card, (C) of Figure 12 is the just upper state diagram after on being formed at the inclined plane of engagement pawl of the second card, (D) of Figure 12 be the second card just on being formed at the inclined plane of engagement pawl after the state diagram of end edge butt of the second end edge blocking and head.

Label declaration

1: housing;

2: cover plate;

3: contact;

4: ejecting mechanism;

5: the first cards;

5s: groove;

5t: the first splicing ear;

6: the second cards;

6t: the second splicing ear;

10: connector (card connector);

11: recess;

12h: head;

41: slide unit;

41s: inclined plane;

410: engagement pawl.

Embodiment

Below, with reference to accompanying drawing to describing for implementing mode of the present invention.

[structure of card connector]

First, the structure of the card connector to an embodiment of the invention describes.

Fig. 1 is the stereogram that the structure of the card connector of an embodiment of the invention is shown, (A) of Fig. 1 is the state diagram before the first card is inserted, and (B) of Fig. 1 is the state diagram of having inserted the first card.Fig. 2 shows the figure of the structure of the first card of the card connector that is suitable for described execution mode, and (A) of Fig. 2 is the vertical view of the first card, and (B) of Fig. 2 is the left side view of the first card.

Fig. 3 shows the vertical view of the structure of the card connector of described execution mode.Fig. 4 shows the front view of the structure of the card connector of described execution mode.Fig. 5 shows the upward view of the structure of the card connector of described execution mode.

Fig. 6 shows the vertical view of the structure of the card connector of described execution mode, and is the state diagram of having unloaded cover plate.Fig. 7 shows the stereogram of the structure of the card connector of described execution mode, and is the state diagram of having unloaded cover plate.Fig. 8 shows the stereo decomposing installation diagram of the structure of the card connector of described execution mode.

(structure of the first card and the second card)

With reference to Fig. 1, the card connector of an embodiment of the invention (below, referred to as connector) 10 can insert (with reference to Fig. 1 (B) and Fig. 2 (A), (B)) for the first card 5 of the regular essentially rectangular with predetermined profile and thickness.On the other hand, connector 10 also can for form compared with the first card 5 the second card 6 of non-normal essentially rectangular of the little and thin thickness of profile insert (with reference to Fig. 9 or Figure 10).

With reference to Fig. 2, the first card 5 is for example XQD(registered trade marks) card, the first card 5 has multiple the first splicing ear 5t in the internal arrangement of the groove 5s that is opened on an end face.In addition, the first card 5 has a side 51 the square slot part 51a that otch forms midway.On the other hand, with reference to Fig. 9 or Figure 10, the second card 6 is for example SD cards, has multiple the second splicing ear 6t that expose an end arranged cells.

(schematic configuration of card connector)

Referring to figs. 1 through Fig. 8, connector 10 possesses tabular housing 1 and cover plate 2.Housing 1 is formed with the recess 11 for the first card 5 or the second card 6 plugs.The recess 11 of cover plate 2 covering shells 1.

In addition,, referring to figs. 1 through Fig. 8, connector 10 possesses the multiple contacts 3 that covered by head (header) 12h and the ejecting mechanism 4 that pushes away/push away type.Head 12h is configured in the depth portion of housing 1, outstanding towards the opening 15 of recess 11, and can be inserted in the groove 5s of the first card 5 (with reference to (A)～Figure 11 of Figure 11 (D)).Ejecting mechanism 4 is configured in one-sided, sidewall 13 sides of housing 1 in other words of recess 11, can be inserted into the card of first in recess 11 5 or the second card 6 is discharged.

With reference to Fig. 6 to Fig. 8, ejecting mechanism 4 has the slide unit 41 of band plate-like.Slide unit 41 can move along of housing 1 sidewall 13.Slide unit 41 has engagement pawl 410.Engagement pawl 410 is outstanding from the one-sided central portion to recess 11 of recess 11.In addition, engagement pawl 410 can be blocked 6 end edge butt (with reference to (B) of Figure 11 or (B) of Figure 12) with the first card 5 or second.

With reference to Fig. 6 to Fig. 8, there is inclined plane 41s(with reference to Fig. 9 or Figure 10 in the junction that fastens of engagement pawl 410), in the time that the second card 6 is inserted in recess 11, second blocks on 6 to the 41s of inclined plane.On the other hand, in the time that the first card 5 is inserted in recess 11, engagement pawl 410 moves to the below of multiple contacts 3, and the first splicing ear 5t can be connected with contact 3 (with reference to Figure 11 (D)).

(structure of ejecting mechanism)

With reference to Fig. 6 to Fig. 8, slide unit 41 possesses cantilever-shaped leaf spring 42.The base end part of leaf spring 42 is fixed on slide unit 41.Leaf spring 42 can move integratedly with slide unit 41.In addition, leaf spring 42 has the bend 42a that bends to V word shape, and described bend 42a is flexibly to the first card 5 side 51 application of force, and described bend 42a can be in and out of the slot part 51a(of the first card 5 (A) with reference to Fig. 2).

With reference to Fig. 1 or Fig. 6 to Fig. 8, in the time that the first card 5 is inserted in recess 11, the bend 42a of leaf spring 42 is out of shape rear recovery and can makes bend 42a enter into the slot part 51a of the first card 5.In the process being discharged from from recess 11 at the first card 5, the bend 42a of leaf spring 42 engages with the slot part 51a of the first card 5, can prevent that the first card 5 from flying out.

With reference to Fig. 7 or Fig. 8, form the intentionally cam path 41a of shape in a side of slide unit 41.In addition, ejecting mechanism 4 also has compression helical spring 43 and guide rod 44.

With reference to Fig. 7 or Fig. 8, compression helical spring 43 is held in housing 1.Compression helical spring 43 is to the first card 5 or second is blocked to 6 directions of discharging to slide unit 41 application of forces.One end 44a of guide rod 44 and the cam path 41a of heart shape link, and its other end 44b rotates and is supported in freely housing 1.

With reference to Fig. 8, one-sided the first guiding slot part 11g, second guiding slot part 12g and the next door 13g of comprising of recess 11.In the first guiding slot part 11g, compressed helical spring 43 application of forces of slide unit 41 and stop at the open side of recess 11.In addition, slide unit 41 is remained on heeling condition by the first guiding slot part 11g, makes the terminal part of the bend 42a of leaf spring 42 give prominence to (with reference to Fig. 6) to recess 11 a little.The second guiding slot part 12g is communicated with the first guiding slot part 11g.In addition under the state that, the second guiding slot part 12g engages with the slot part 51a of the first card 5 at the bend 42a of leaf spring 42, guarantee the rectilinear motion of slide unit 41.

With reference to Fig. 8, as entity, the guiding piece 14g that the first guiding slot part 11g and the second guiding slot part 12g and recess 11 are the extension of quadrangular shape demarcates.And, directed 14g guiding of the sidewall 41w of slide unit 41 and can guarantee the rectilinear motion of slide unit 41.In addition, in the region of a part of the second guiding slot part 12g, slide unit 41 can also banking motion.

With reference to Fig. 6 or Fig. 7, next door 13g is outstanding a little towards the depth side of recess 11 in the mode that the first guiding slot part 11g and recess 11 are separated.When slide unit 41 is during to the depth side shifting of recess 11, next door 13g is crossed and the heeling condition of correcting slide unit 41 in the end of slide unit 41.

(structure of contact)

Contact has conductivity, and the metallic plate of conductivity is carried out stamping-out processing or bending machining and can obtain the contact of the conductivity of desirable shape.The easiness of processing if consider and spring performance, conductivity etc., preferably contact adopts copper alloy, but is not limited to copper alloy.

With reference to Fig. 3 to Fig. 6, in the recess 11 of housing 1, dispose abreast multiple contacts 3.These contacts 3 can will be provided with (B) of the printed base plate 1p(of connector 10 with reference to Fig. 1 (A), Fig. 1) be electrically connected with the first card 5.

With reference to Fig. 2 or Fig. 6, the inside of the first card 5 plastic frame bodies in insulating properties is accommodated with IC chip (not shown).This IC chip is connected with multiple metal formings of the inside that is attached to groove 5s.And, and multiple metal formings of row arrangement become the first splicing ear 5t of the first card 5.Single contact 3 is connected one to one with the first single splicing ear 5t, and mechanical connection and electrical connection.

With reference to Fig. 3 to Fig. 6 and Figure 11, contact 3 adopts the cantilevered contacts that the function of spring is cantilever beam.Contact 3 is made up of elastic arm and fixed arm, and elastic arm is configured in the bottom surface of head 12h, and is provided with the contact contacting with the first splicing ear 5t that is formed at the first card 5.Fixed arm is pressed into and is fixed on the opposed walls 14 that forms recess 11.Contact 3 is formed with wire portion 3r in the end of fixed arm, by by wire portion 3r soldered joint in printed base plate 1p, thereby can be using the connector of execution mode 10 as surperficial connector for fitting (with reference to (A) of Fig. 1, (B) of Fig. 1).

(structure of housing)

Housing has insulating properties.The housing of insulating properties can be the housing being made up of dielectric material, dielectric forming synthetic resin can be obtained to the housing of desirable shape.

With reference to Fig. 3 or Fig. 6 to Fig. 8, housing 1 have a sidewall 13 and with sidewall 13 orthogonal and with the opposed opposed walls 14 of end edge of the first card 5.Another curved tabs 22 by a sidewall 13 and cover plate 2 and opposed walls 14 can be specified to " for the recess 11 of the first card 5 or the second card 6 plugs " around the thin rectangular-shaped space forming.In addition, can also serve as card maintaining part.

With reference to Fig. 4 to Fig. 8, because the recess 11 of housing 1 is covered by cover plate 2, therefore form opposed to each other the rectangular opening 15 for the first card 5 or the second card 6 insertions with opposed walls 14.The distance of an opposed sidewall 13 and another curved tabs 22 is slightly wider than the width of the first card 5, utilize an opposed sidewall 13 and another curved tabs 22 to limit the attitude of the first card 5, can be by the first splicing ear 5t of the first card 5 and correctly contraposition of contact 3.

(structure of cover plate)

Cover plate is made up of sheet metal, by the sheet metal launching is formed to processing, can obtain the cover plate of desirable shape.Preferably cover plate is made up of the sheet metal of conductivity, due to cover plate covering shell, therefore can be shielded the effect of (electromagnetic shielding).

With reference to Fig. 1 or Fig. 3 to Fig. 4, the both sides of the main panel 21 of cover plate 2 are at right angles bent and are processed into.And the pair of

curved sheet

22,22 of cover plate 2 offers multiple essentially rectangulars hole 22h.These essentially rectangular holes 22h can engaging in the side of sidewall 13 to housing 1 and opposed walls 14 outstanding multiple lug boss 1r(with reference to Fig. 6 to Fig. 8).

In addition,, with reference to Fig. 1 or Fig. 3 to Fig. 5, cover plate 2 is provided with soldered joint in multiple reed 2r of printed base plate 1p.These reeds 2r, can strengthen and the bond strength of printed base plate 1p in printed base plate 1p by soldered joint, these reeds 2r can also be connected with the ground wire of printed base plate 1p.

With reference to Fig. 1 or Fig. 3 to Fig. 5, the main panel 21 of cover plate 2 has a pair of plate spring sheet 2a, 2a.Plate spring sheet 2a is the bottom surface application of force towards the recess 11 of housing 1 to the first card 5.Plate spring sheet 2a is the surperficial application of force to the first card 5 with more weak power, in order to avoid the surface of damage the first card 5.

(structure of slide unit)

With reference to Fig. 6 to Fig. 8, slide unit 41 is configured in a sidepiece of recess 11.Be provided with at a sidepiece of recess 11 the second guiding slot part 12g that guided slidable parts 41 can move.And slide unit 41 can be advanced and retreat along the direction parallel with the plug direction of the first card 5 by the second guiding slot part 12g restriction.Slide unit 41 is only allowed to the rectilinear motion of advancing and retreat in the region of the second guiding slot part 12g.

With reference to Fig. 6 to Fig. 8, the sidewall 41w of slide unit 41 can be partly works as a sidewall of the attitude (gradient) of restriction the first card 5.As another sidewall of restriction the first card attitude (gradient) of 5, another curved tabs 22 that guide by the another side 52 to the first card 5, that be arranged at cover plate 2 is functioned in an acting capacity of (with reference to (A) of Fig. 1 to Fig. 5).

With reference to Fig. 8, be equipped with the cylinder hole 4h that a part for compression helical spring 43 is kept in the end of slide unit 41.On the other hand, be formed with the rod-like protrusions 1t(of inside opposed with cylinder hole 4h and that enter into compression helical spring 43 with reference to Fig. 6 at housing 1).

With reference to Fig. 6 to Fig. 8, by two spiral end framves of compression helical spring 43 are contained between cylinder hole 4h and rod-like protrusions 1t, can be to the first card 5 or second is blocked to 6 directions of discharging to slide unit 41 application of forces.Under the first card 5 or the second card 6 states that are not inserted in recess 11, under the state that slide unit 41 tilts in compressed helical spring 43 application of forces, stop at opening 15 sides (the first guiding slot part 11g) of recess 11.

With reference to Fig. 8, the both ends of guide rod 44 bend to approximate right angle.With reference to Fig. 7, an end 44a of guide rod 44 and the cam path 41a of the heart shape that runs through the side that is arranged at slide unit 41 link.On the other hand, the other end 44b of guide rod 44 is inserted in the hole 11h of the terminal part side that is formed at a sidewall 13, is supported to rotate freely.And an end 44a of guide rod 44 can be driven in the cam path 41a of heart shape.

With reference to Fig. 6 to Fig. 8, if using the slide unit 41 of cam path 41a with heart shape as becoming the cam of driving link and using guide rod 44 as driven member, slide unit 41 and guide rod 44 form the cam gear of cam and driven member relative shift.In addition, the cam path 41a of heart shape not only becomes the plane curve of describing heart shape track, also becomes the space curve including the bottom surface of the cam path 41a of heart shape is the continuous path on the poor or inclined-plane of ladder.Slide unit 41 and guide rod 44 form so-called solid cam device.

With reference to Fig. 8, the cam path 41a of heart shape depicts the track of going to stroke from starting point 4s and gets back to the track of the backstroke of starting point 4s.In the track of the cam path 41a of heart shape, drive in the wrong direction even if an end 44a of guide rod 44 is local, in whole strokes, an end 44a of guide rod 44 also describes the irreversible continuous path not driving in the wrong direction.

With reference to Fig. 8, the cam path 41a of heart shape is formed with the V-shaped valley 4v that is V word shape depression at the breakout of going to the track of stroke and the track of backstroke.Slide unit 41 slides, an end 44a of guide rod 44 from starting point 4s to V-shaped valley 4v side shifting and engaging in V-shaped valley 4v, thereby compressed helical spring 43 application of forces and can slide unit 41 being locked in the installation site of the first card 5.The cam gear being made up of cam path 41a and the guide rod 44 of heart shape has stipulated a stop position of slide unit 41.

With reference to Fig. 6 to Fig. 8, the base end part of leaf spring 42 is pressed into and is fixed on slide unit 41.Leaf spring 42 is disposed at slide unit 41 so that bend to the bend 42a of V word shape towards the outstanding mode of recess 11.Leaf spring 42 and slide unit 41 are advanced and retreat integratedly.The function of the spring of leaf spring 42 is cantilever beams, and it is configured to: only because load works along the orthogonal direction of the direction of advancing and retreat with the first card 5, thereby strain occurs.

[effect of card connector]

Below, the action of the connector 10 to execution mode on one side describes, and on one side the effect of connector 10 is described.

Fig. 9 shows the stereogram of the structure of the card connector of described execution mode, and is the just upper state diagram after on being formed at the inclined plane of engagement pawl of the second card.Figure 10 shows the stereogram of the structure of the card connector of described execution mode, and be the second card just on being formed at the inclined plane of engagement pawl after the state diagram of end edge butt of the second end edge blocking and head.

First, the erection sequence of the first card 5 as regular card is described.

In the time the first card 5 being inserted into recess 11 from the state shown in Figure 11 (A), the end edge of the first card 5 and the bend 42a butt (with reference to Fig. 6) of leaf spring 42.Under the state of the end edge of the first card 5 and the bend 42a butt of leaf spring 42, slide unit 41 maintains the attitude (with reference to Fig. 6) of inclination.In addition,, under the state of the end edge of the first card 5 and the bend 42a butt of leaf spring 42, an end 44a of guide rod 44 is positioned at the starting point 4s(of cam path 41a of heart shape with reference to Fig. 8).

Then,, in the time the first card 5 further being inserted to the depth side of recess 11 from the state of the end edge of the first card 5 and the bend 42a butt of leaf spring 42, become the state shown in (B) of Figure 11.Under the state shown in (B) of Figure 11, the first card end edge of 5 and engagement pawl 410 fasten junction butt.In addition, under the state shown in (B) of Figure 11, after the bend 42a distortion of leaf spring 42, restore, the bend 42a of leaf spring 42 enters into the slot part 51a (with reference to Fig. 6) of the first card 5.

Then,, when the first card 5 further insertion to the depth side of recess 11 when overcome compression helical spring 43 from the state shown in Figure 11 (B), become the state shown in (C) of Figure 11.Under the state shown in (C) of Figure 11, the bend 42a of leaf spring 42 engages with the slot part 51a of the first card 5, and slide unit 41 advances to the depth side of recess 11.In addition, from the state shown in Figure 11 (B) to the process of the state transitions shown in Figure 11 (C), an end 44a of guide rod 44 moves (with reference to Fig. 7 or Fig. 8) from the starting point 4s of the cam path 41a of heart shape along the track of going to stroke.

In addition,, the process from the state shown in Figure 11 (B) to the state transitions shown in Figure 11 (C), utilize the bottom surface of recess 11 and the main panel 21 of cover plate 2 to limit the first card 5 movements in thickness of slab direction.Therefore, first card 5 not go up engagement pawl 410 inclined plane 41s go up and engagement pawl 410 is moved.

When the first card 5 further insertion to the depth side of recess 11 when overcome compression helical spring 43 from the state shown in Figure 11 (C), become the state shown in (D) of Figure 11.Under the state shown in (D) of Figure 11, slide unit 41 moves to the region of the second guiding slot part 12g from the region of the first guiding slot part 11g, and slide unit 41 is only allowed to carry out rectilinear motion.In addition, under the state shown in (D) of Figure 11, engagement pawl 410 moves to the below of multiple contacts 3, and the first splicing ear 5t can be connected with contact 3.

In addition, with reference to Fig. 8, with the movement of slide unit 41 relatively, the V-shaped valley 4v that an end 44a engaging of guide rod 44 forms in the summit of the cam path 41a at heart shape, the position of slide unit 41 is fixed thus.In this case, the bend 42a of leaf spring 42 enters into the slot part 51a of the first card 5, maintains thus the installment state of the first card 5.Like this, the connector 10 of execution mode can lock the first card 5.In addition, omit the explanation of the discharge order to the first card 5.

Below, to the state variation in the second card 6 situations about being inserted in connector 10 of informal card is described.

In the time the second card 6 being inserted into recess 11 from the state shown in Figure 12 (A), the second card end edge of 6 and engagement pawl 410 fasten junction butt (with reference to Figure 12 (B)).When the second card 6 further insertion to the depth side of recess 11 when overcome compression helical spring 43 from the state shown in Figure 12 (B), as shown in Fig. 9 or Figure 11 (C), on the second card 6 to the inclined plane 41s of engagement pawl 410.

In the time the second card 6 further being inserted to the depth side of recess 11 from the state shown in Fig. 9 or Figure 11 (C), the second card 6 is crossed engagement pawl 410 and is moved.The end edge butt of the second card end edge of 6 and head 12h and can stop the second card 6 to enter (with reference to Figure 10 or Figure 12 (D)).And then, can protect contact 3 avoid due to the second card 6 misplug into operation cause damage.

Like this, the connector 10 of execution mode has the engagement pawl 410 with the first card 5 or the second card end edge butt of 6, the junction that fastens in engagement pawl 410 has inclined plane 41s, in the time that the second card 6 is inserted in recess 11, second blocks on 6 to the 41s of this inclined plane, therefore, in the time that the second card 6 is inserted in recess 11, the end edge butt of the second card end edge of 6 and head 12h and can stop the second card 6 to enter.And then, can protect contact 3.In addition can also prevent, the second splicing ear 6t and the periphery damage (with reference to Figure 10) thereof of the second card 6.

Card connector of the present invention can prevent from disappearing because mispluging of card connects into the electricity mistake causing the data that cause, and the taking-up of card is also easy while connecting by mistake.The data of card connector of the present invention in can protection card, and can cut down man-hour and the expense for repairing connector.

Claims

1. a card connector, first card that can insert the essentially rectangular with predetermined profile and thickness in this card connector with form compared with the first card the second card of the essentially rectangular of the little and thin thickness of profile, the described first internal arrangement that is stuck in the groove that is opened on an one end face has multiple the first splicing ears, described the second card is arranged with multiple the second splicing ears that expose

Described card connector possesses:

Cover plate, it covers the recess of described housing;

2. card connector according to claim 1, wherein,

At the square slot part midway with otch formation of the described first side of blocking,

Described slide unit possesses cantilever-shaped leaf spring, the base end part of described leaf spring is fixed on this slide unit, described leaf spring has the bend that bends to V word shape, and described bend is a side application of force to described the first card flexibly, and described bend can be in and out of the slot part of described the first card.

3. card connector according to claim 1 and 2, wherein,

There is the cam path of heart shape in a side of described slide unit,

Described ejecting mechanism also has:

Compression helical spring, it is held in described housing, to blocking the direction of discharging to the described slide unit application of force by described first; And

Guide rod, the cam path of one end and described heart shape links, and the side that is supported in freely described housing is rotated in the other end.