CN101242051B - Connector for card - Google Patents
Connector for card Download PDFInfo
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- CN101242051B CN101242051B CN2008100055121A CN200810005512A CN101242051B CN 101242051 B CN101242051 B CN 101242051B CN 2008100055121 A CN2008100055121 A CN 2008100055121A CN 200810005512 A CN200810005512 A CN 200810005512A CN 101242051 B CN101242051 B CN 101242051B
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- card
- recess
- leaf spring
- sliding part
- connector
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Abstract
The present invention provides a connector for card, the connector for card has a locking mechanism having simple structure. The connector includes: a casing, having a recess part of inserting or pulling the card; and a cover, covering the casing. A sliding part has a card clamp piece which is pressing against the bevel edge of the card, parallelly advancing and retreating with the card. A compression coiled spring forces to the sliding part. A plate spring is integrity with the cover. The front end of the plate spring is driven move by a heart shaped cam groove, capable of locking the sliding part.
Description
Technical field
The present invention relates to card connector.Especially, the present invention relates to the structure of the card connector that is electrically connected with this storage card by the insertion of storage cards such as SD (Secure Digital) card.
Background technology
Card-type storage device is that storage card adopts flash memories as storage medium.Because storage card is very little, data write consumes electric power hardly, so, as with for example with the mobile phone of camera or PDA (Personal Digital Assistance: be that the recording medium of the portable information device of representative is popularized personal digital assistant).
Compare with floppy disk (FD) or photomagneto disk disk memory devices such as (MO), the memory capacity of this storage card is little and price is high.But owing to follow technological progress in recent years and use a large amount of production effects of popularizing of the equipment of storage card, storage card becomes the large storage capacity about maximum 128MB, and price also reduces gradually.
And then, because storage card has the advantage that needs drive unit when reading and writing data unlike FD or MO etc., so, be applicable to and pay attention to power consumption and portable digital camera, notebook computer, portable music player.
As the connector that this storage card is used, invented and to have prevented that storage card from inadvertently ejecting and having the connector for memory card of the simpler locking mechanism of structure (for example with reference to following patent documentation 1) from connector.
And then patent documentation 1 described connector for memory card has swing sliding part, draft helical spring and guide bar.For storage card is inserted, the swing sliding part is configured to can be with respect to the sidepiece plane displacement of the side in the recess that forms on housing.And, form the intentionally cam path of shape at the upper surface of swing sliding part.
Two ends at draft helical spring have hook, and the fastening of a hook is on housing, and another hook fastening is on the swing sliding part.Draft helical spring to the swing sliding part to the rightabout application of force of the direction of insertion of storage card, and, can make the swing sliding part recover attitude.One end of guide bar is connected with the cam path of heart shape, and other end rotation remains on the housing freely.
And, on the sidepiece plane of a side of described recess, be formed with first guide part, columned projection and second guide part.First guide part extends towards card insert opening.Columned projection is formed on the end of first guide part.Second guide part also forms near first guide part in parallelly, and is configured to the central authorities than the more close described recess of first guide part.
On the other hand, on the bottom surface of swing sliding part, be formed with long spot-facing, groove and recess.Long spot-facing guides columned projection, and restriction is by the stop position of the swing sliding part of the draft helical spring application of force.Groove is formed on the end of long spot-facing, with the first guide part slip joint.Because groove is a V word shape towards its end openings, so the swing sliding part can be swung in groove.Recess swing freely with the second guide part slip joint, when the swing sliding part overcomes draft helical spring and when mobile, can guarantee to swing the rectilinear motion of sliding part.
And then the swing sliding part has first pawl and second pawl of L word shape.The bight butt of first pawl of L word shape and the inserting side of storage card.The 2nd pawl can debouch the recess that forms in the side of storage card.A bight of storage card forms the right angle, and another bight forms inclined plane part.The 2nd pawl is outstanding to be configured on the card maintaining part, to push the side of this storage card.
The swing sliding part that patent documentation 1 described connector for memory card will have the cam path of heart shape is a cam as driving link, and guide bar as driven member, is constituted cam gear.In this cam gear, for swing sliding part and guide bar, cam is relative with driven member to be shifted.And, in patent documentation 1 described connector for memory card, the fastening state of the recess that the swing sliding part is kept on one side and formed in the side of storage card, Yi Bian be driven in the track of the cam path of heart shape, the installment state that can become storage card maybe can be extracted the state of storage card.
[patent documentation 1] TOHKEMY 2005-71667 communique
For with the card connector of this subminiature miniature SD card connection, can consider that when discharging card effect has inertia force on card, thereby card can eject inadvertently.Therefore, card connector seeks to prevent more reliably the structure of the careless ejection of card.Card connector seeks to keep reliably the structure of the installment state of card.And, seek to keep reliably the structure of the installment state of card with the card connector of subminiature miniature SD card connection.
And patent documentation 1 described card connector utilization swing sliding part, draft helical spring and guide bar constitute locking mechanism, compare with card connector in the past, have locking mechanism simple in structure.
But the dog-eat-dog of mass-produced card connector aspect cost seeks to have the more simply card connector of locking mechanism of structure.And above item is problem of the present invention.
Summary of the invention
The present invention finishes in view of these problems, and its purpose is to provide a kind of card connector, in having the card connector of locking mechanism, has the locking mechanism simple in structure of the installment state that can keep card reliably.
The present inventor finds: covering of covering shell plate spring sheet is set, this plate spring sheet is driven in the sliding part with heart-shaped cam path, thus can the simple locking mechanism of implementation structure, in view of the above, invented following novel card connector.
(1) a kind of card connector, this card connector has: tabular housing, it is provided with the 1st recess, and described the 1st recess has the opening of the card that can plug essentially rectangular; With the lid that covers the 1st recess, wherein,
Described card connector has:
Sliding part, it is configured on the parallel sidepiece of plug direction described the 1st recess and described card, allows this sliding part to advance and retreat on the direction parallel with this plug direction; And
Compression helical spring, it is maintained on the described housing, and the power of utilizing the direction that described card is discharged from is to the described sliding part application of force,
Described jig has: the hypotenuse that midway forms in a side of this card; With with the 2nd recess of the general square shape of this hypotenuse adjacency,
Described sliding part has: snap-latch piece, its from the described lateral side of described the 1st recess to the 1st recess outstanding and with the described hypotenuse butt of described card; With the cam path of the heart type that on the surface of this sliding part, forms,
Described lid has the 1st leaf spring, and the base end part of the 1st leaf spring is fixed on this and covers, and the leading section of the 1st leaf spring is connected with this cam path in the mode of the cam path that can be driven in described heart type.
Card connector based on the invention of (1) has tabular housing and lid.Housing possesses the 1st recess, and described the 1st recess has the opening of the card that can plug essentially rectangular.The 1st recess of lid covering shell.And, have sliding part and compression helical spring based on the card connector of the invention of (1).
Sliding part is configured on the 1st recess and the parallel sidepiece of plug direction card, can advance and retreat on the direction parallel with the plug direction of card.Compression helical spring is maintained on the housing, utilizes the power of blocking the direction that is discharged to the sliding part application of force.
Jig has the 2nd recess of hypotenuse and general square shape.The side that hypotenuse is formed on card midway.The 2nd recess and hypotenuse adjacency.Sliding part has the cam path of snap-latch piece and heart type.Snap-latch piece from a lateral side of the 1st recess in the 1st recess outstanding and with the hypotenuse butt of card.The cam path of heart type is formed on the surface of sliding part.
And lid has the 1st leaf spring.The base end part of the 1st leaf spring is fixed on and covers.The leading section of the 1st leaf spring is connected with this cam path in the mode of the cam path that can be driven in heart type.
Here, housing has insulating properties.The housing of so-called insulating properties also can be the housing of being made by dielectric material.For example, forming synthetic resin can be obtained the housing of the insulating properties of desired shape.And also a plurality of contacts are put in establishing in the 1st recess of housing.What is called is also established, and for example is to make a plurality of contacts near the meaning of also aliging and becoming row and being arranged side by side.The contact has conductivity, carries out punch process or bending process by the metallic plate to conductivity, thereby can obtain the contact of the conductivity of desired shape.If consider the easiness, spring performance, conductivity of processing etc., then the material preference such as the copper alloy of contact, but be not limited to copper alloy.
Usually in card, taken in the IC chip in the plastic framework inside of insulating properties.This IC chip is connected with a plurality of metal formings of pasting on the framework surface.And then, and establishing a plurality of metal formings of putting become the splicing ear of card.Here, single contact and single metal paper tinsel terminal mechanical connection and being electrically connected one to one.
The cantilever type contact of spring function as cantilever beam preferably used in the contact.The contact also can be made of elastic arm and fixed arm.Elastic arm is outstanding from the bottom surface of the 1st recess, has the contact that contacts with the splicing ear that forms on card.Fixed arm can be pressed into and be fixed on the 1st recess.Fixed arm can be integrally formed with housing.The leading part (aftermentioned) of lid can be formed on the end of fixed arm, by this leading part is welded on the printed circuit board (PCB), thereby this card connector can be formed the mounted on surface connector.
Housing has: opposed pair of sidewalls; With with the pair of sidewalls quadrature and with the card the opposed opposed walls of front-end edge.Can be defined as " for the 1st recess of card plug " by the thin rectangular-shaped space that pair of sidewalls and opposed walls surrounded.And, also can will approach rectangular-shaped space as the card maintaining part.In pair of sidewalls, also can utilize the sidewall of sliding part to form a sidewall, on housing, form another sidewall.And, cover the 1st recess by utilizing lid, thereby form the rectangular opening that inserts for card opposed to each other with opposed walls.Here, because the distance between the opposed pair of sidewalls is wideer slightly than the width of card, so, utilize pair of sidewalls to limit the attitude (inclinations) of card, can be to the splicing ear on card, arranged and the also establishing contact contraposition correctly of putting on housing.
Lid is made by sheet metal.By the sheet metal that launches is formed processing, can obtain the lid of desired shape.Lid is preferably made by the sheet metal of conductivity, and the lid covering shell by being made by the sheet metal of conductivity can obtain shield effectiveness.
The both sides of lid also can meet at right angles in bending process.Also can form rectangular opening at the sidepiece of these bending processes, with this rectangular opening fastening on the outstanding protuberance in the two sides of housing.And, also can cover the leading part that is provided with the printed circuit board (PCB) welding, thus, can strengthen covering the bond strength with printed circuit board (PCB), lid can be connected on the ground wire of printed circuit board (PCB).Here, can lid with opposed of the 1st recess on the 1st leaf spring described later is set.
Also can card detecting switch be set in the opposed walls side of the 1st recess, this card detecting switch carries out electro-detection to the situation that is positioned in the installation site.For example, card detecting switch can be made of movable platen and fixed head, and when being positioned in the installation site, the front end of movable platen is blocked pushing and the contact fixed head, and card detecting switch becomes status of electrically connecting.When the 1st recess is extracted card, movable platen returns to original position and leaves from fixed head, and card detecting switch becomes the disconnected state of TURP.Like this, can test card have or not.
As described later, a sidepiece at housing is provided with the groove that bootable sliding part moves.And sliding part is limited by this groove, can advance and retreat on the direction parallel with the plug direction of card.The rectilinear motion that only allows sliding part to advance and retreat.
For example, on sliding part, be formed with and the 1st outstanding abreast cylindrical protrusion of groove.On the other hand, on housing, be formed with the 1st cylindrical protrusion opposed and with the 2nd outstanding abreast cylindrical protrusion of groove.And, be erected between the 1st cylindrical protrusion and the 2nd cylindrical protrusion by two end windings, thereby the power that can utilize the direction that card is discharged from is to the sliding part application of force compression helical spring.Under the state that does not insert card, sliding part is compressed the helical spring application of force and stops at the open side of the 1st recess.
The base end part of the 1st leaf spring can be fixed on and cover.The leading section of the 1st leaf spring with run through the cam path that is arranged on the lip-deep heart type of sliding part and be connected.And the leading section of the 1st leaf spring is driven in the cam path of heart type.The 1st leaf spring can be that spring function is the leaf spring of cantilever beam.Because the leading section of the 1st leaf spring is driven in the cam path of heart type, thereby bending moment acts on the 1st leaf spring, the 1st leaf spring generation strain.
If will have the sliding part of the cam path of heart type is cam as driving link, the 1st leaf spring as driven member, be we can say that then sliding part and the 1st leaf spring constitute the cam gear of the relative displacement with driven member of cam.Here, cam path is a plane curve of describing heart type track.The leading section of the 1st leaf spring is driven in the track of the cam path of heart type, carries out strain in the mode of swing.The cam gear that constitutes by sliding part and the 1st leaf spring can the regulation sliding part stop position.
And then, the track that the cam path of heart type is described to leave the track that leaves stroke of starting point and returned the backstroke of starting point.Even the track of the cam path of the heart type situation that part is driven in the wrong direction occurs at the leading section of the 1st leaf spring, in whole stroke, also can describe the not retrograde irreversible continuous path of leading section of the 1st leaf spring.As entity, the cam path of heart type has the V-shaped valley that is V word shape depression at the breakout of the track of track that leaves stroke and backstroke.The leading section fastening of the 1st leaf spring is in this V-shaped valley, and sliding part is compressed the helical spring application of force thus, sliding part can be locked in the installation site of card.The cam gear that constitutes by the cam path and the 1st leaf spring of heart type also can the regulation sliding part stop position.
For example, thus the base end side of the 2nd leaf spring described later is pressed into sliding part the 2nd leaf spring can be fixed on the sliding part.Thus, the front of the 2nd leaf spring is to be configured on the sliding part towards the outstanding mode of the opening of the 1st recess.And the 2nd leaf spring and sliding part can be advanced and retreat integratedly.The 2nd leaf spring can be that spring function is the leaf spring of cantilever beam, and card acts on the semi arch pawl that the leading section of the 2nd leaf spring forms as load, thus the 2nd leaf spring generation strain.
Card forms essentially rectangular, and the width of the front that disposes splicing ear of card is narrower than the width of the base end side of card.It is the hypotenuse at obtuse angle that a side in the parallel two sides of the front of card forms angle of release, and continuous with a side in the two sides that are parallel to base end side.That is, the front of card bight becomes the shape that is single-blade shape otch.And, the 2nd recess of general square shape and the hypotenuse adjacency of card.
In the time will blocking the 1st recess that inserts housing, described hypotenuse and described semi arch pawl butt.In the time further will blocking insertion the 1st recess, the semi arch pawl slides at hypotenuse and is pressed simultaneously.Then, under the state of the front-end edge butt of hypotenuse and snap-latch piece, the semi arch pawl slides on the surface of card, and is outstanding at the 2nd recess of card.In addition, also can on the front-end edge of snap-latch piece, form inclined-plane with gradient identical with the hypotenuse of card.Then, when pushing card, sliding part moves to the inboard direction (opposed walls side) of the 1st recess of housing.
Thereby card is being shifted onto under the state that end card returns a little, the leading section fastening of the 1st leaf spring is in V-shaped valley, and in the installation site of card, sliding part is locked in the housing.In the installation site of card, the semi arch pawl that is arranged in the leading section of the 2nd leaf spring has 2nd recess of flexibly fastening at card, therefore, can keep the installment state of card reliably.
Block when the installment state from card pushes away, the leading section of the 1st leaf spring discharges from V-shaped valley, moves in backstroke.Then, be compressed the helical spring application of force, sliding part makes card move to the open side of the 1st recess.Relatively turn back to moment of starting point of the cam path of heart type at the leading section of the 1st leaf spring, sliding part stops.Here, though effect has inertia force on card,, because the semi arch pawl has flexibly fastening in the 2nd recess of card, so can prevent reliably that card from inadvertently ejecting.And then, by with stronger strength drawing card, card is broken away from from connector.
Like this, card connector based on the invention of (1) is provided with the 1st plate spring sheet covering of covering shell, the 1st plate spring sheet is driven in the sliding part with heart-shaped cam path, thus can the simple locking mechanism of implementation structure, and can keep the installment state of card reliably.
(2) as (1) described card connector, described card connector also has the 2nd leaf spring, and the base end side of the 2nd leaf spring is fixed on the described sliding part, and the front of the 2nd leaf spring is outstanding to the opening of described the 1st recess,
Described the 2nd leaf spring has the semi arch pawl at its leading section, and this semi arch pawl passes in and out described the 2nd recess of described card from face side, and has flexibly fastening in the 2nd recess.
According to card connector based on the invention of (2), the 2nd leaf spring with semi arch pawl is set on the sliding part that advance and retreat move, by this semi arch pawl is embedded in the 2nd square recess that forms, can prevent more reliably that card from inadvertently ejecting on card.
(3) as (2) described card connector, described housing has: the groove that bootable described sliding part moves; And passage, this passage is communicated with this groove, and the front-end edge of described the 2nd leaf spring and described passage closely move,
The bottom surface of described passage, is closed to end from this to the opening midway towards the inboard from the described open side of described the 1st recess midway.
In card connector based on the invention of (3), the passage that housing has groove and is communicated with this groove.The bootable sliding part of groove moves.In passage, the front-end edge of the 2nd leaf spring and passage closely move.And the bottom surface of passage, is closed to end from this to the opening midway towards the inboard from the open side of the 1st recess midway.
Groove can be formed on the sidepiece of the 1st recess, and opening becomes roughly rectangle, forms in the mode of the part depression on the plane of housing.Sliding part is accommodated in this groove in the mode that can advance and retreat.The bottom surface of the 1st recess becomes ladder, forms a side of groove.Snap-latch piece moves along a side of this groove.Groove can comprise the part of the 1st recess.
Passage comprises the part of the 1st recess, forms from the square passage of the bottom surface depression of the 1st recess.Passage can form abreast with groove, an end of passage and the open communication of the 1st recess, and the other end of passage is communicated with groove.Here, the bottom surface opening of so-called passage is meant that the front-end edge of semi arch pawl can be towards the meaning of opening deflection.On the other hand, the bottom surface of so-called passage is closed, and is meant the front-end edge of semi arch pawl and the bottom surface butt of passage, and the meaning that is difficult to deflection.
Like this, in the card connector based on the invention of (3), because housing has passage, the front-end edge of the 2nd leaf spring and passage closely move, so under the installment state of blocking, the semi arch pawl is difficult for deflection, can keep card reliably.On the other hand, when discharging card, as mentioned above, can prevent more reliably that card from ejecting, compare, can enough weak power be extracted by card with the installment state of card.
(4) as each the described card connector in (1)～(3), described lid and described the 1st leaf spring are integrally formed.
For example, on the sheet metal that launches, except the base end part of the 1st leaf spring, carry out punch process in advance, to form the profile of the 1st leaf spring.Then, by bending process the 1st leaf spring, can make lid and the 1st leaf spring integrally formed.Also can use the composite die that can carry out described punch process and described bending process in the lump.
In card connector based on the invention of (4), owing to covering the 1st leaf spring that cam path integrally formed and heart type is connected, so, the guide bar not needing shown in patent documentation 1 as miscellaneous part.Therefore, can cut down the cost of making guide bar and the cost of assembling guide bar, help to reduce the manufacturing cost of card connector.
(5) as (4) described card connector, described lid has a plurality of leading parts that can be welded on the printed circuit board (PCB).
A plurality of leading parts can weld with the ground connection figure that printed circuit board (PCB) is had, and can obtain shield effectiveness thus.And,, can strengthen the weld strength of this card connector by a plurality of leading parts of welding on printed circuit board (PCB).
(6) as (1) described card connector, described card is miniature SD card (a miniature secure digital card).
Card connector of the present invention is provided with the 1st plate spring sheet covering of covering shell, and the 1st plate spring sheet is driven in the sliding part with heart-shaped cam path, thus can the simple locking mechanism of implementation structure, and can keep the installment state of card reliably.
And card connector of the present invention is covering the 1st leaf spring that cam path integrally formed and heart type is connected, so, help to reduce the manufacturing cost of card connector.
Description of drawings
Fig. 1 is the three-dimensional decomposition assembling figure that an execution mode of card connector of the present invention is shown.
Fig. 2 is the three-dimensional decomposition assembling figure of the card connector of above-mentioned execution mode, observes connector from the direction different with Fig. 1.
Fig. 3 is the plane graph of the card connector of above-mentioned execution mode, is the state diagram of taking off behind the lid.
Fig. 4 is the stereo appearance figure of the sliding part that card connector had of above-mentioned execution mode, observes sliding part from the back side.
Fig. 5 is the stereo appearance figure of the lid that card connector had of above-mentioned execution mode, observes lid from the back side.
Fig. 6 is the stereo appearance figure of the card connector of above-mentioned execution mode, is the state diagram that card is installed.
Fig. 7 is the end view of sliding part of the card connector of above-mentioned execution mode.
Fig. 8 is the stereo appearance figure after the major part of the card connector of above-mentioned execution mode is amplified, and cuts the part of lid open.
Fig. 9 is the stereo appearance figure after the major part of the card connector of above-mentioned execution mode is amplified, and with section sliding part is shown.
Figure 10 (A)～Figure 10 (G) is the major part plane graph of the card connector of above-mentioned execution mode, and a series of state variation of sliding part is shown.
Embodiment
Below, describe being used to implement best mode of the present invention with reference to accompanying drawing.
Fig. 1 is the three-dimensional decomposition assembling figure that an execution mode of card connector of the present invention (being designated hereinafter simply as connector) is shown.Fig. 2 is the three-dimensional decomposition assembling figure of the connector of above-mentioned execution mode, observes connector from the direction different with Fig. 1.Fig. 3 is the plane graph of the connector of above-mentioned execution mode, is the state diagram of taking off behind the lid.
Fig. 4 is the stereo appearance figure of the sliding part that connector had of above-mentioned execution mode, observes sliding part from the back side.Fig. 5 is the stereo appearance figure of the lid that connector had of above-mentioned execution mode, observes lid from the back side.Fig. 6 is the stereo appearance figure of the connector of above-mentioned execution mode, is the state diagram that card is installed.Fig. 7 is the end view of the sliding part that connector had of above-mentioned execution mode.
Fig. 8 is the stereo appearance figure after the major part of the connector of above-mentioned execution mode is amplified, and cuts the part of lid open.Fig. 9 is the stereo appearance figure after the major part of the connector of above-mentioned execution mode is amplified, and with section sliding part is shown.Figure 10 (A)～Figure 10 (G) is the major part plane graph of the connector of above-mentioned execution mode, and a series of state variation of sliding part is shown.
The structure of connector of the present invention at first, is described.As Fig. 1 or shown in Figure 2, connector 10 has tabular housing 2 and lid 3.Housing 2 possesses recess 21, but this recess 21 has the opening 22 of plug-in card 1.Cover the recess 21 of 3 covering shells 2.Housing 2 is a rectangular shape by the synthetic resin material forming of insulating properties.Lid 3 is formed by metallic plate, and both sides are bent into L word shape.
And as Fig. 1～shown in Figure 3, connector 10 has sliding part 4, leaf spring 5 and compression helical spring 6.Sliding part 4 is can be configured in a sidepiece of recess 21 in the mode of the direction advance and retreat parallel with the plug direction of card 1.And, on the surface of sliding part 4, form the intentionally cam path 42 of type.The base end side of leaf spring 5 is fixed on the sliding part 4, and the front of leaf spring 5 is outstanding towards the opening 22 of recess 21.Compression helical spring 6 remains on the housing 2, utilizes the power of blocking 1 direction of discharging to sliding part 4 application of forces.
And then as Fig. 1 or shown in Figure 2, sliding part 4 protrudes in recess 21 from a lateral side of recess 21.Sliding part 4 has snap-latch piece 41, this snap-latch piece 41 and the hypotenuse 1a butt that midway forms in the side of card 1.Leaf spring 5 debouches recess 1b card 1 and general square shape hypotenuse 1a adjacency from face side.Leading section at leaf spring 5 has semi arch pawl 51, and this semi arch pawl 51 has flexibly fastening in recess 1b.
As Fig. 1 or shown in Figure 2, connector 10 forms the opening 22 that inserts for card 1 by mounting cover 3 on housing 2, forms the card maintaining part (with reference to Fig. 6) of thin cuboid shape.And, in the recess 21 of housing 2, dispose 8 contacts 7 side by side.A plurality of contacts 7 electrically contact and Mechanical Contact integratedly with a plurality of splicing ears (not shown) that form on the surface of card 1.
As Fig. 2 or shown in Figure 3, contact 7 is that spring function is the cantilever type contact of cantilever beam, is made of elastic arm and fixed arm.Elastic arm is outstanding from the bottom surface of recess 21, is formed with the contact 71 (with reference to Fig. 1) that contacts with the splicing ear (not shown) that forms on card 1.Fixed arm remains on the recess 21.And lead-in wire (リ one De) portion 72 is formed on the end of fixed arm, and leading part 72 is welded on the printed circuit board (PCB) 1p, thus, connector 10 can be formed mounted on surface connector (with reference to Fig. 2).
As shown in Figure 3, housing 2 has: opposed pair of sidewalls 21a, 21b; With with pair of sidewalls 21a, 21b quadrature and with the opposed opposed walls 21c of front-end edge of card 1.A sidewall 21a is formed by the sidewall 41a of sliding part in fact.The thin rectangular-shaped space that is surrounded by pair of sidewalls 41a, 21b and opposed walls 21c becomes recess 21.And recess 21 is covered by lid 3, thus, forms rectangular opening 22 opposed with opposed walls 21c and that supply card 1 to insert.The distance of opposed pair of sidewalls 41a, 21b is wideer slightly than the width of card 1, and the attitude of card 1 is limited by pair of sidewalls 41a, 21b, thereby blocks 1 splicing ear and contact 7 contraposition correctly.
As Fig. 1 or shown in Figure 2, the both sides of lid 3 are met at right angles by bending process.Be formed with a plurality of rectangular opening 3a on the bent sheet that forms in bending process.A plurality of rectangular opening 3a and projection (ラ Application ス) the 2r fastening of giving prominence in the two sides of housing 2, thus, lid 3 is assembled in (with reference to Fig. 6) on the housing 2.And, on lid 3, be provided with the leading part 3r (with reference to Fig. 2) that is welded on the printed circuit board (PCB) 1p.Lid 3 with 21 opposed 31 of recesses on be provided with leaf spring 32 described later.
As Fig. 1～shown in Figure 3, on a sidepiece of recess 21, dispose sliding part 4.Dispose card detecting switch 8 on the opposed walls 21c of recess 21,8 pairs of cards of this card detecting switch, 1 situation that is positioned at the installation site is carried out electro-detection.Card detecting switch 8 is made of movable platen 8a and fixed head 8b.When card 1 was positioned at the installation site, movable platen 8a was blocked 1 and is pushed, and the front end of movable platen 8a contacts with fixed head 8b, and card detecting switch 8 becomes status of electrically connecting.When recess 21 is extracted card 1, movable platen 8a returns to original position, and 8b leaves from fixed head, and card detecting switch 8 becomes the disconnected state of TURP.Like this, can test card 1 have or not.
As Fig. 1 or shown in Figure 2, be provided with the groove 23 that bootable sliding part 4 moves at a sidepiece of housing 2.Sliding part 4 is limited by groove 23, can advance and retreat on the direction parallel with the plug direction of card 1.The rectilinear motion that only allows sliding part 4 to advance and retreat.
As shown in Figure 4, on sliding part 4, be formed with and outstanding abreast the 1st cylindrical protrusion 4a (with reference to Fig. 1 or Fig. 2) of groove 23.On the other hand, on housing 2, be formed with the 1st cylindrical protrusion 4a opposed and with outstanding abreast the 2nd cylindrical protrusion 2a (with reference to Fig. 1 or Fig. 2) of groove 23.As shown in Figure 3, be erected between the 1st cylindrical protrusion 4a and the 2nd cylindrical protrusion 2a by two end windings with compression helical spring 6, thus, the power that can utilize the direction that card 1 discharges is to sliding part 4 application of forces (with reference to Fig. 1 or Fig. 2).Under the state that does not insert card 1, sliding part 4 is compressed helical spring 6 application of forces and stops at opening 22 sides (with reference to Fig. 3) of recess 21.
As Fig. 1 or shown in Figure 2, the passage 24 that on housing 2, has groove 23 and be communicated with groove 23.Groove 23 can move by guided slidable part 4.In passage 24, the front-end edge of leaf spring 5 and passage 24 closely move (with reference to Fig. 8 and Fig. 9).And the bottom surface of passage 24 has from the open side of recess 21 to the opening 25 towards the rectangle of the opening midway of inboard, is closed to end from this midway.
As Fig. 1 or shown in Figure 2, groove 23 openings become roughly rectangle, form in the mode of the part depression on the plane of housing 2.Sliding part 4 is accommodated in (with reference to Fig. 3) in the groove 23 in the mode that can advance and retreat.The bottom surface of the recess 21 of housing 2 becomes ladder, forms a side of groove 23.Snap-latch piece 41 moves along a side of groove 23.Passage 24 comprises the part of recess 21, forms from the square passage 24 of the bottom surface depression of recess 21.Passage 24 forms abreast with groove 23, and an end of passage 24 is communicated with the opening 22 of recess 21, and the other end of passage 24 is communicated with groove 23.
As shown in Figure 5, the base end part of leaf spring 32 is fixed on and covers on 3.The leading section 32a of leaf spring 32 is outstanding a little, is connected (with reference to Fig. 1 or Fig. 2) with the cam path 42 that runs through the lip-deep heart type that is arranged on sliding part 4.The leading section 32a of leaf spring 32 can be driven in the cam path 42 of heart type.Leaf spring 32 can be that spring function is the leaf spring of cantilever beam, because the leading section 32a of leaf spring 32 is driven in the cam path 42 of heart type, thereby bending moment acts on the leaf spring 32, and strain takes place leaf spring 32.
As shown in Figure 5, cover 3 integrally formed leaf springs 32.For example, lid 3 is that the metal sheet profiled of expansion formed.The sheet metal of this expansion carries out punch process in advance except the base end part of leaf spring 32, to form the profile of leaf spring 32.Then, by bending process leaf spring 32, lid 3 can integrally formed leaf spring 32.Also can use the composite die that can carry out this punch process and bending process in the lump to become female cap 3.
As Fig. 1 or shown in Figure 2, the cam gear of sliding part 4 and the relative displacement of leaf spring 32 formation cams with driven member.Cam path 42 is for describing the plane curve (with reference to Fig. 3) of heart type track, and the bottom surface of cam path 42 is formed flatly.The leading section 32a that is arranged on the leaf spring 32 that covers on 3 is driven in the track of the cam path 42 of heart type, carries out strain in the mode of swing.(with reference to Fig. 5).Here, the stop position that the cam gear that is made of sliding part 4 and leaf spring 32 can regulation sliding part 4.
As shown in Figure 3, the cam path 42 of the heart type track describing to leave the track that leaves stroke of starting point A1 and return the backstroke of starting point A1.Even the track of the cam path 42 of the heart type situation that part is driven in the wrong direction occurs at the leading section 32a of leaf spring 32, in whole stroke, also can describe the not retrograde irreversible continuous path of leading section 32a of leaf spring 32.And, in the cam path 42 of heart type,, be formed with the V-shaped valley A2 that is V word shape depression at the breakout of the track of track that leaves stroke and backstroke.
As Fig. 2 or shown in Figure 7, the base end side of leaf spring 5 is pressed into and is fixed on the sliding part 4.And leaf spring 5 is configured to the opening 22 outstanding (with reference to Fig. 3) of its front towards recess 21.Leaf spring 5 and sliding part 4 are advanced and retreat integratedly.Leaf spring 5 can be that spring function is the leaf spring of cantilever beam, and load acts on the semi arch pawl 51 of the leading section formation of leaf spring 5, and thus, strains take place leaf spring 5.
As Fig. 1 or shown in Figure 2, card 1 forms essentially rectangular, and the width of the front that disposes splicing ear (not shown) of card 1 is narrower than the width of the base end side of card 1.It is the hypotenuse 1a at obtuse angle that a side in the parallel two sides of the front of card 1 forms angle of release, and continuous with a side in the two sides that are parallel to base end side.A bight of the front of card 1 becomes the shape that is single-blade shape otch.And, the recess 1b of general square shape and the hypotenuse 1a adjacency of blocking 1.
The action and the effect of connector of the present invention then, are described.When blocking 1 from Fig. 1 or state shown in Figure 2 when inserting recess 21, the hypotenuse 1a and semi arch pawl 51 butts (with reference to Fig. 8) of card 1.When further insertion blocked 1, semi arch pawl 51 slided with respect to hypotenuse 1a and is pressed simultaneously.Then, under the state of the front-end edge butt of hypotenuse 1a and snap-latch piece 41, semi arch pawl 51 slides on the surface of card 1, at the recess 1b of card 1 outstanding (with reference to Fig. 8).In addition, on the front-end edge of snap-latch piece 41, be formed with inclined-plane with gradient identical with the hypotenuse 1a of card 1.Then, when pushing blocked 1, sliding part 4 moved (with reference to Fig. 3) to the inboard direction of recess 21.
As shown in Figure 6, thereby shift the end onto and block under 1 state that returns a little will blocking 1, the leading section 32a fastening of leaf spring 32 is in V-shaped valley A2.Its result, in the installation site of card 1, sliding part 4 is locked in (with reference to Figure 10 (D)) in the housing 2.In the installation site of the card 1 shown in Figure 10 (D), the semi arch pawl 51 that is arranged in the leading section of leaf spring 5 has the recess 1b of flexibly fastening at card 1, therefore, can keep the installment state (with reference to Fig. 9) of card 1 reliably.
When the installment state from card shown in Figure 91 pushes away when blocking 1, the leading section 32a of leaf spring 32 discharges from V-shaped valley A2, moves in backstroke (with reference to Figure 10 (E)).Then, sliding part 4 is compressed helical spring 6 application of forces, makes opening 22 side shiftings of card 1 to recess 21.Relatively turn back to moment of starting point A1 of the cam path 42 of heart type at the leading section 32a of leaf spring 32, sliding part 4 stops (with reference to Fig. 3).Here, though effect has inertia force on card 1,,, inadvertently eject so can prevent card 1 reliably because semi arch pawl 51 has flexibly fastening in the recess 1b of card 1.Then, by with stronger strength drawing card 1, card 1 is broken away from from connector 10.
Then, with reference to Figure 10 (A)～Figure 10 (G) relative motion between the leading section 32a of sliding part 4 with heart-shaped cam path 42 and leaf spring 32 is described.
Figure 10 (A) is the state diagram before card 1 is installed in the connector 10, and the leading section 32a of leaf spring 32 is positioned at the starting point A1 of the cam path 42 of heart type.Figure 10 (B) is that card 1 inserts in the connector 10, sliding part 4 moves state diagram midway, an inclined-plane butt of the leading section 32a of leaf spring 32 and the cam path 42 of heart type.
Figure 10 (C) is the state diagram of further inserting card 1, and the leading section 32a of leaf spring 32 is along an inclined-plane displacement of the cam path 42 of heart type.In the state diagram shown in Figure 10 (C), leaf spring 32 the biggest ground deflections.Figure 10 (D) shifts card 1 end of onto, card 1 state diagram of returning a little, leaf spring 32 elastic recoveries, and the leading section 32a fastening of leaf spring 32 is in V-shaped valley A2.That is, can lock the installment state of (keeping) card 1.In addition, in this lock-out state, the effect (with reference to Fig. 3) of compression helical spring 6 performance assistance.
Figure 10 (E) thus be by pushing away the state diagram that the leading section 32a that blocks 1 leaf spring 32 discharges from V-shaped valley A2 from blocking 1 installment state.In the state diagram of Figure 10 (D), the leading section 32a of leaf spring 32 is residual the entad surplus energy of the backstroke elastic recovery of the cam path 42 of type.Because the leading section 32a of leaf spring 32 discharges from V-shaped valley A2, thereby the leading section 32a of leaf spring 32 moves to the backstroke of the cam path 42 of heart type.In addition, under the state of Figure 10 (E), strain does not take place in leaf spring 32.
Figure 10 (F) is that sliding part 4 is compressed helical spring 6 application of forces and is in recovery state diagram midway.The leading section 32a of leaf spring 32 is along another inclined-plane displacement of the cam path 42 of heart type.Leaf spring 32 is along another inclined-plane generation strain of the cam path 42 of heart type.Figure 10 (G) is the leading section 32a of leaf spring 32 relatively gets back to starting point A1 along the cam path 42 of heart type state diagram.Under the state of Figure 10 (G), sliding part 4 is compressed helical spring 6 application of forces and stops.Leaf spring 32 elastic recoveries turn back to the identical initial condition of state with Figure 10 (A).
Like this, the cam gear of sliding part 4 and the relative displacement of leaf spring 32 formation cams with driven member.And the track of the cam path 42 of heart type is described the not retrograde irreversible continuous path of leading section 32a of leaf spring 32 in whole stroke.
Card connector of the present invention is provided with the plate spring sheet with semi arch pawl on sliding part, this semi arch pawl is embedded in the square recess that forms on card, thus, can prevent more reliably that card from inadvertently ejecting, and, can keep the installment state of card reliably.Owing to, use the leaf spring of metallic object, so excellent in wear resistance as the brake unit (brake) of card.
And as shown in Figure 9, the bottom surface of passage 24, is closed to end from this to the opening midway towards the inboard from opening 22 sides of recess 21 midway.As shown in Figure 9, because the bottom surface opening of passage 24, thereby the front-end edge of semi arch pawl 51 can be towards opening 25 deflections.On the other hand, because the bottom surface of passage 24 is closed, thereby the bottom surface butt of the front-end edge of semi arch pawl 51 and passage 24 is difficult to deflection.
Because connector of the present invention constitutes the approaching passage that moves of the front-end edge that makes leaf spring like this, so under the installment state of card, the semi arch pawl is difficult for deflection, can keep card reliably.On the other hand, when discharging card, as mentioned above, can prevent the ejection of card more reliably, compare, can enough weak power be extracted by card with the installment state of card.
And, according to card connector of the present invention, because integrally formed the covering of leaf spring that be connected with the cam path of heart type, so, help to reduce the manufacturing cost of card connector.
In the above-described embodiment, connector of the present invention is applicable to the card connector that plugs miniature SD card, still, the card that is plugged is not limited to miniature SD card, also can be other cards with hypotenuse and recess.And connector of the present invention also can be the lip-deep mounted on surface connector that is welded on printed circuit board (PCB), under this situation, owing on the surface of sliding part, form the intentionally cam path of type, so, can reduce setting height(from bottom) (slimming).And then the component parts of connector of the present invention is few, helps to reduce manufacturing cost.
Claims (6)
1. card connector, this card connector has: tabular housing, it is provided with the 1st recess, and described the 1st recess has the opening of the card that can plug essentially rectangular; With the lid that covers the 1st recess, wherein,
Described card connector has:
Sliding part, it is configured on the parallel sidepiece of plug direction described the 1st recess and described card, allows this sliding part to advance and retreat on the direction parallel with this plug direction; And
Compression helical spring, it is maintained on the described housing, and the power of utilizing the direction that described card is discharged from is to the described sliding part application of force,
Described jig has: the hypotenuse that midway forms in a side of this card; With with the 2nd recess of the general square shape of this hypotenuse adjacency,
Described sliding part has: snap-latch piece, its from the described lateral side of described the 1st recess to the 1st recess outstanding and with the described hypotenuse butt of described card; With the cam path of the heart type that on the surface of this sliding part, forms,
Described lid has the 1st leaf spring, and the base end part of the 1st leaf spring is fixed on this and covers, and the leading section of the 1st leaf spring is given prominence to a little and is connected with the cam path of described heart type, and can be driven in the cam path of described heart type.
2. card connector according to claim 1, wherein,
Described card connector also has the 2nd leaf spring, and the base end side of the 2nd leaf spring is fixed on the described sliding part, and the front of the 2nd leaf spring is outstanding towards the opening of described the 1st recess,
Described the 2nd leaf spring has the semi arch pawl at its leading section, and this semi arch pawl debouches described the 2nd recess of described card from face side, and has flexibly fastening in the 2nd recess.
3. card connector according to claim 2, wherein,
Described housing has: the groove that bootable described sliding part moves; And passage, this passage is communicated with this groove, and the front-end edge of described the 2nd leaf spring and described passage closely move,
The bottom surface of described passage, is closed to end from this to the opening midway towards the inboard from the described open side of described the 1st recess midway.
4. according to each the described card connector in the claim 1～3, wherein,
Described lid and described the 1st leaf spring are integrally formed.
5. card connector according to claim 4, wherein,
Described lid has a plurality of leading parts that can be welded on the printed circuit board (PCB).
6. card connector according to claim 1, wherein,
Described card is miniature SD card.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007031326A JP2008198443A (en) | 2007-02-09 | 2007-02-09 | Card connector |
| JP2007-031326 | 2007-02-09 | ||
| JP2007031326 | 2007-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101242051A CN101242051A (en) | 2008-08-13 |
| CN101242051B true CN101242051B (en) | 2010-07-28 |
Family
ID=39757191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100055121A Expired - Fee Related CN101242051B (en) | 2007-02-09 | 2008-02-04 | Connector for card |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008198443A (en) |
| CN (1) | CN101242051B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5171541B2 (en) * | 2008-10-21 | 2013-03-27 | 日本圧着端子製造株式会社 | Card connector |
| JP4899234B2 (en) * | 2009-07-03 | 2012-03-21 | オンキヨー株式会社 | Housing sliding door device and audiovisual apparatus using the same |
| JP4866451B2 (en) * | 2009-08-03 | 2012-02-01 | アルプス電気株式会社 | Card connector |
| CN102829442B (en) * | 2011-06-17 | 2014-12-10 | 海洋王照明科技股份有限公司 | Clamping structure and lighting device comprising same |
| JP5307869B2 (en) * | 2011-09-21 | 2013-10-02 | アルプス電気株式会社 | Card connector |
| JP5527558B2 (en) * | 2012-04-18 | 2014-06-18 | Ｓｍｋ株式会社 | Card connector |
| CN102709753B (en) * | 2012-06-08 | 2016-06-08 | 北京盛博协同科技有限责任公司 | A kind of tight device of CF kayser |
| CN113675669B (en) * | 2020-05-14 | 2024-04-19 | 富联精密电子(天津)有限公司 | Electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729950Y (en) * | 2004-09-04 | 2005-09-28 | 富港电子（东莞）有限公司 | Card connector with two-stage card ejection mechanism and memory card retention |
| CN1707865A (en) * | 2004-06-09 | 2005-12-14 | 安普泰科电子有限公司 | Card connector |
| CN1707864A (en) * | 2004-06-08 | 2005-12-14 | 阿尔卑斯电气株式会社 | Connector device for card use |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4177703B2 (en) * | 2003-05-01 | 2008-11-05 | 株式会社アイペックス | IC card connector |
| JP4393840B2 (en) * | 2003-10-31 | 2010-01-06 | モレックス インコーポレイテド | Card connector and push-push type eject mechanism |
| JP4376075B2 (en) * | 2004-01-26 | 2009-12-02 | モレックス インコーポレイテド | Card connector |
| JP4619132B2 (en) * | 2005-01-06 | 2011-01-26 | モレックス インコーポレイテド | Card connector |
| JP2006309967A (en) * | 2005-04-26 | 2006-11-09 | Advanex Inc | Slider unit and card connector |
| JP2006324185A (en) * | 2005-05-20 | 2006-11-30 | Union Machinery Co Ltd | Card connector |
| JP4331703B2 (en) * | 2005-07-04 | 2009-09-16 | ヒロセ電機株式会社 | Card connector with eject mechanism using heart cam |
-
2007
- 2007-02-09 JP JP2007031326A patent/JP2008198443A/en active Pending
-
2008
- 2008-02-04 CN CN2008100055121A patent/CN101242051B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707864A (en) * | 2004-06-08 | 2005-12-14 | 阿尔卑斯电气株式会社 | Connector device for card use |
| CN1707865A (en) * | 2004-06-09 | 2005-12-14 | 安普泰科电子有限公司 | Card connector |
| CN2729950Y (en) * | 2004-09-04 | 2005-09-28 | 富港电子（东莞）有限公司 | Card connector with two-stage card ejection mechanism and memory card retention |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101242051A (en) | 2008-08-13 |
| JP2008198443A (en) | 2008-08-28 |
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Granted publication date: 20100728 Termination date: 20140204 |