CN106877021A - Card connector - Google Patents

Abstract

The present invention provides a kind of card connector, and the card that it can be different from thickness is corresponding and can suppress the excessive flexure of elastic contact chip and maintain stable contact condition.Elastic contact chip (43) possesses the elastomeric base (431) that one end is supported in housing (3), the main flexure strip portion (432) of elastomeric base (431) can be swingingly supported in, and it is integrally formed in the contact portion (433) of main flexure strip portion (432), elastomeric base (431) possesses and is being configured to detect abutting part (6) than bottom surface (311) the non-object card in the inner part of card insertion section (31) with being supported at the support end of housing (3) (431a) position separated by a distance, and spring constant is larger and be difficult to bend compared with main flexure strip portion (432).

Description

Card connector

Technical field

Card the present invention relates to be used to be connected on the card such as IC-card, flash card the electronic equipments such as mobile phone, smart mobile phone Connector.

Background technology

In the past, as the exterior storage medium of the mobile terminals such as mobile phone, smart mobile phone, IC-card, flash card have been used, The connection of these cards has used card connector.

This card connector possesses the housing with the card insertion section for card insertion and is disposed in housing and is inserted to card Multiple contacts that portion protrudes, if inserting cards into card insertion section, are formed at the pad of the one side of card (hereinafter referred to as object card) Portion contacts with the contact portion of suitable each contact, so that object card is electrically connected via each contact with installation base plate.

Contact for example possesses base end side and is supported in the Elastic Contact that the base plate of housing and front are stretched out towards oblique upper Piece and be integratedly supported in elastic contact chip front end circular arc convex contact portion, the surface of the object card for having inserted is supported Contact portion is connected to, concomitantly elastic contact chip is pressed down and bends, so as to be contacted with the contact for specifying.

Also, for this card connector, also it is known possess can properly selecting property accommodate the different various cards of specification Kato disk and be suitable for the contact of each card so as to card connector corresponding with various cards (for example, referring to patent document 1).

Prior art literature

Patent document 1：Japanese Unexamined Patent Publication 2008-108695 publications

However, IC-card, flash card etc. block determines profile and thickness according to specification in principle, but it is different sometimes according to card And assume the stickup of label paster etc. so as to thickness allows a range of tolerance.

Also, in this card connector, also assume that user uses discomfort with used interchangeably between mobile terminal etc. The situation of the card of conjunction.

Also, there is the thickness every card in the various cards corresponding card connector different from specification as described in Patent Document 2 The different situation of degree, in this case, becoming the card in the contact unaccommodated thickness not corresponding with selected card.

In the past, if insertion compared like this as card A thickness card (hereinafter referred to as non-object card B), and non-object card B table Face contacts with contact 100, then as shown in Fig. 6 (a), Fig. 6 (b), exist and the object card A and the thickness difference of non-object card B being adapted to Measure D correspondingly problems of the elastic contact chip 101 than original deflection excessive deflection.

And, such excessive flexure produces excessive stress, and thus elastic contact chip produces plastic deformation, and may The reason for as loose contact etc..

Especially, with the miniaturization of mobile terminal and card, this card connector also requires that miniaturization, such so as to have The tendency that the influence of the plastic deformation caused by excessive flexure significantly manifests.

The content of the invention

Therefore, in view of such conventional problem, it is an object of the invention to provide a kind of card that can be different from thickness Correspondence and the excessive flexure of elastic contact chip can be suppressed so as to maintain the card connector of the contact condition of stabilization.

For solving the problems, such as the invention described in scheme 1 that is as described above conventional and realizing desired purpose It is characterised by possessing：Housing, it has the card insertion section for card insertion；And contact, it is disposed in the housing, and be adapted to Card contact, above-mentioned contact possesses the elastic contact chip that one end is supported in above-mentioned housing, is inserted in the object of above-mentioned card insertion section The gasket part of card is contacted with the contact portion for being formed at above-mentioned elastic contact chip, in above-mentioned card connector, above-mentioned elastic contact chip tool It is standby：Elastomeric base, its one end is supported in above-mentioned housing；Main flexure strip portion, it can swingingly be supported in the elastomeric base；And Contact portion, it is integrally formed in the main flexure strip portion, and above-mentioned elastomeric base possesses non-object card detection abutting part, the non-object Card detection abutting part is being configured to than above-mentioned card insertion section with being supported at the support end of above-mentioned housing position separated by a distance In the inner part, and above-mentioned elastomeric base its spring constant compared with above-mentioned main flexure strip portion is larger for bottom surface.

Invention described in scheme 2 is in addition to the structure of scheme 1, it is characterised in that above-mentioned elastomeric base be formed as with it is above-mentioned Main flexure strip portion is larger compared to width or thickness.

Invention described in scheme 3 is in addition to the structure of scheme 1 or 2, it is characterised in that above-mentioned non-object card detection is abutted Portion is more prominent to card side than above-mentioned elastomeric base surface.

Invention described in scheme 4 is in addition to the structure of the either a program of scheme 1~3, it is characterised in that above-mentioned Elastic Contact Piece possesses the above-mentioned elastomeric base and above-mentioned main flexure strip portion for configuring with intersecting.

Invention described in scheme 5 is in addition to the structure of the either a program of scheme 1~4, it is characterised in that possessing can be appropriate Ground selectivity accommodates the Kato disk of various cards, and above-mentioned card insertion section is inserted cards into via above-mentioned Kato disk, in above-mentioned housing, arranges Have various contacts corresponding with each contact difference, above-mentioned various contacts any one or all using possessing above-mentioned non-object card Detect the contact of abutting part.

The effect of invention is as follows.

As described above, card connector of the invention possesses：Housing, it has the card insertion section for card insertion；And contact, It is disposed in the housing, and is contacted with suitable card, and above-mentioned contact possesses the elastic contact chip that one end is supported in above-mentioned housing, inserts The gasket part for entering the object card of above-mentioned card insertion section is contacted with the contact portion for being formed at above-mentioned elastic contact chip, above-mentioned card connection In device, above-mentioned elastic contact chip possesses：Elastomeric base, its one end is supported in above-mentioned housing；Main flexure strip portion, it can be swingingly It is supported in the elastomeric base；And contact portion, it is integrally formed in the main flexure strip portion, and above-mentioned elastomeric base possesses non-object Card detection abutting part, the non-object card detects that abutting part is being matched somebody with somebody with being supported at the support end of above-mentioned housing position separated by a distance Be set to than above-mentioned card insertion section bottom surface in the inner part, and above-mentioned elastomeric base its spring constant compared with above-mentioned main flexure strip portion Larger, even if thus in the case where the different card of thickness is inserted, the thickness also with the card for having inserted is unrelated, the inspection of non-object card Survey the top surface of abutting part and the card thickness direction of contact portion is constant apart from being always to maintain, and the deflection in main flexure strip portion is always permanent It is fixed such that it is able to suppress the plastic deformation caused by the excessive flexure in main flexure strip portion.

Also, in the present invention, it is larger that above-mentioned elastomeric base is formed as width or thickness compared with above-mentioned main flexure strip portion, Spring constant thus, it is possible to increase elastomeric base relative to main flexure strip portion such that it is able to as the construction for being difficult to bend.

In addition, in the present invention, above-mentioned non-object card detection abutting part is more prominent to card side than above-mentioned elastomeric base surface, thus Object card can be absorbed with the thickness residual quantity of non-object card using the amount of the protrusion.

In addition, in the present invention, above-mentioned non-object card detects abutting part by being fixed on the resin of the elastomeric base of above-mentioned contact The abutment of system is constituted, and will be linked between the elastomeric base of above-mentioned contact using above-mentioned abutment, thus enables that each touching The elastomeric base linkage of head, and the lower pressure of abutment can be will act on disperse to each elastomeric base such that it is able to fit Locality suppresses the plastic deformation of each elastomeric base.

In addition, in the present invention, possess the Kato disk for being capable of the properly selecting property various cards of receiving, will via above-mentioned Kato disk The above-mentioned card insertion section of card insertion, in above-mentioned housing, is equipped with various contacts corresponding with each contact, any of above-mentioned various contacts It is individual or all using the contact for possessing above-mentioned non-object card and detecting abutting part, even if thus using thickness properly selecting In the case of different cards, it is also possible to suitably suppress the plastic deformation of each contact.

Brief description of the drawings

Fig. 1 is an exploded perspective view for example for representing card connector of the invention.

Fig. 2 (a) is the top view for representing the Kato disk in Fig. 1, and Fig. 2 (b) is its longitudinal section.

Fig. 3 is the stereogram for representing the state after the screening cover for removing the housing in Fig. 1.

Fig. 4 is the amplification stereogram for representing the contact in Fig. 3.

Fig. 5 is the partial enlargement longitudinal section for illustrating contact and the contact condition of card, and Fig. 5 (a) represents insertion regulation Card after state, Fig. 5 (b) represent insertion non-object card after state.

Fig. 6 is the partial enlargement longitudinal section for illustrating the contact in conventional card connector and the contact condition of card, Fig. 6 (a) represents the state after insertion card A, and Fig. 6 (b) represents the state after insertion card B.

In figure：

A-object card, B-non-object card, 1-card connector, 2-Kato disk, 21-longitudinal card receiving portion, 22-laterally Card receiving portion, 3-housing, 31-card insertion section, 32-housing body, 33-screening cover, 34,35-contact window portion, 4-touch Head, 41-stator, 42-substrate connection terminal plate, 43-elastic contact chip, 5-contact, 6-non-object card detection is abutted Portion.

Specific embodiment

Next, being illustrated to the implementation method of card connector of the invention based on the embodiment shown in Fig. 1~Fig. 5.

In the present embodiment, illustrated by taking the card connector of Kato disc type as an example, card connector 1 possesses：Can be suitably Selectivity accommodates the Kato disk 2 of different various (being two kinds in the present embodiment) card A, the B of specification；Inserted for card using Kato disk 2 Housing 3；And it is disposed in housing 3 and various contacts 4,5 corresponding with each card A, B.

The card A of one side is the IC-cards such as compact SIM card, and the card B of the opposing party is the storage cards such as miniature SD card, the card A with a side Compare, the card B's of the opposing party is some or all thicker.

Additionally, in the present embodiment, on the basis of the contact 4 of the present application, card A is referred to as object card, and by the opposing party Card B be referred to as non-object card.

As shown in Fig. 2 Kato disk 2 possesses non-object card B with its long side direction towards containing body insertion side in single-face side To longitudinal card receiving portion 21 for being accommodated of mode and by object card A with its long side direction towards connector width The horizontal card receiving portion 22 that is accommodated of mode, as by overlap with horizontal card receiving portion 22 of longitudinal card receiving portion 21 The mutually general configuration of split-phase.

Each card receiving portion 21,22 is comparatively formed as the band rank of insertion in a thickness direction with the shape of each card A, B respectively Terraced is poroid, after Kato disk 2 to be inserted the card insertion section 31 of housing 3, rank is supported in from the outer rim of card A, B of top side insertion Terraced portion, the connection pad (パ ッ De) (not shown) of the card for being accommodated is exposed in the bottom side of card insertion section 31 by opening portion 23.

Also, because the thickness of each card A, B is different, thus via Kato disk 2 be inserted in each card A, B of card insertion section 31 with The distance of the inner bottom surface 311 of card insertion section 31 is different, compared to object card A and the distance of inner bottom surface 311, non-object card B and interior bottom The distance in face 311 is narrower.

Housing 3 possesses the plastic housing body 32 that has recess in top side and by conducting metal material structure Into screening cover 33, side covering screening cover 33, and is closed above recess, thus shape by screening cover 33 above housing body 32 Box like as the card insertion section 31 with above side opening.

As shown in figure 3, housing body 32 has two kinds of contacts 4,5 corresponding with each card A, B, configuration in the embedment of base plate 321 Contact (hereinafter referred to as the first contact) 4,4 ... in card insertion direction nearby side is corresponding with object card A with being set to, in being configured at Contact (hereinafter referred to as second contact) 5,5 ... of side is corresponding with non-object card B, respectively blocks the contact pad and each contact 4,5 of A, B Contact.

In the base plate 321 of housing body 32, with the shape of the position of each contact 4,5 and elastic contact chip 43 comparatively The contact window portion 34,35 of the insertion on the thickness of slab direction of base plate 321 is respectively formed with, in contact 4,5 elastic deformation, is touched First 4,5 with the non-contravention of base plate 321.

As shown in figure 4, the first contact 4 is integrally formed by the sheet material as elastomeric material and conductive metal material, possess： It is embedded in the stator 41 of the base plate 321 of housing body 32；Stretched out from a side of stator 41 and in housing body 32 The substrate connection terminal plate 42 that bottom surface side exposes；And it is supported in the elastic contact chip 43 of stator 41.

Elastic contact chip 43 possess one end be supported in via stator 41 housing 3 base plate 321 elastomeric base 431, The main flexure strip portion 432 of elastomeric base 431 can be swingingly supported in and connecing for main flexure strip portion 432 is integrally formed in Point portion 433, elastomeric base 431, main flexure strip portion 432 and contact portion 433 are formed as the continuous cantilever on card insertion direction Leaf-spring-like.

Elastomeric base 431 two ends possess the support end 431a that is integrally formed with stator 41 and with main flexure strip The movable end 431b that the cardinal extremity in portion 432 is integrally formed, and elastomeric base 431 is formed as on card insertion direction and ratio is touched The shape that the medial surface 341 of head window portion 34 stretches out more obliquely upward, so as to be supported via stator 41 as support end 431a In the cantilever spring construction of the base plate 321 of housing 3.

Also, it is wider than the width in main flexure strip portion 432 that elastomeric base 431 is formed as width, correspondingly, cross sectional moment of inertia ratio The cross sectional moment of inertia in main flexure strip portion 432 is big so that spring constant becomes big, and turn into it is harder compared with main flexure strip portion 432 and It is difficult to the spring construction for bending.

Additionally, the mode of the elastomeric base 431 is not limited to the present embodiment, for example, it is also possible to by making length than master The length in flexure strip portion 432 is shorter, make the thickness of slab in the main flexure strip portion 432 of thickness ratio thicker etc. increases spring constant.

In addition, in elastomeric base 431, and in the movable end 431b in the position with support end 431a separated by a distance integrally Ground possesses non-object card detection abutting part 6.

Non-object card detection abutting part 6 is formed as making the movable end 431b surfaces of elastomeric base 431 by punch process The convex form for bloating to arc-shaped, protrudes in card side, and its top be configured at inner bottom surface 311 than card insertion section 31 to inner side from Open the position of desired distance.

The desired distance is set based on the thickness of the non-object card B for assuming, more specifically, based on object card A Set with the thickness residual quantity D of non-object card B.

Main flexure strip portion 432 is formed as spring construction：Cardinal extremity forms one with the movable end 431b of elastomeric base 431 Body, and be formed as being stretched out obliquely upward towards card insertion direction from cardinal extremity 431b, and it is supported in elastomeric base 431.

And, the main flexure strip portion 432 is formed as narrow width of the width than elastomeric base 431, and cross sectional moment of inertia is than elasticity The cross sectional moment of inertia of base portion 431 is small, easily flexure such that it is able to swung relative to elastomeric base 431.

Also, in the leading section in the main flexure strip portion 432, it is integrally formed with the contact portion 433 of arc-shaped.

The mode of the second contact 5 is not particularly limited, but is configured to appropriate with non-object card B with desired contact Ground contact.

In the card connector 1 for constituting like this, if object card A is inserted into card insertion section 31 via Kato disk 2, such as Shown in Fig. 5 (a), though the surface of object card A with not with the state of the upper surface of non-object card detection abutting part 6 or Contact, non-object card detect that the position of abutting part 6 is also basically unchanged dynamic state and carries out the action of insertion initial stage.

Thus, if card A is inserted into card insertion section 31 up to the position of regulation by Kato disk 2, and block the lower surface (pad of A Piece portion) contacted with contact portion 433, then push the power in direction to the mass action of elastic contact chip 43, but due to elastomeric base 431 with Main flexure strip portion 432 is larger and be difficult to bend compared to spring constant, so as to relative to the lower pressure from object card A, main bullet The property main support of piece portion 432 bends in elastomeric base 431.

On the other hand, in the card connector 1, if non-object card B is inserted into card insertion section 31, such as Fig. 5 via Kato disk 2 B shown in (), the upper surface of abutting part 6 is detected on the surface of non-object card B with non-object card, with object card A and non-object card B Thickness residual quantity D to correspondingly bottom side push non-object card detection abutting part 6.

And, if beginning to use Kato disk 2 by non-object card B insertion cards insertion section 31 up to the position for specifying from the state Put, then the lower surface of non-object card B is contacted with contact portion 433, and the power in direction is pushed to the mass action of elastic contact chip 43.

Now, for each elastomeric base 431, non-object is come from via the detection effect of abutting part 6 of non-object card Block the power for pushing direction of B, movable end 431b is in and is scratched to correspondingly bottom side with the thickness residual quantity D of object card A and non-object card B Bent state, so that the deflection in main flexure strip portion 433 depends on the top surface and contact portion 433 of non-object card detection abutting part 6 Card thickness direction apart from d.

That is, in the card connector 1, the thickness with the card for having inserted is unrelated, and non-object card detects the top surface of abutting part 6 and connects The card thickness direction in point portion 433 is always to maintain constant apart from d, and the deflection in main flexure strip portion 432 is always constant, so as to suppress Plastic deformation caused by the excessive flexure in main flexure strip portion 432.

Also, in the card connector 1, the width of the elastomeric base 431 of the lower pressure of effect non-object card B is than main flexure strip The width in portion 432 is wide, and spring constant is larger, so that elastomeric base 431 will not also be plastically deformed because of the lower pressure.

Thus, if removing non-object card B from card insertion section 31, elastomeric base 431 and main flexure strip portion 432 bullet respectively Property restore, and restore to original state.

Additionally, in the above embodiments, to the example using the Kato disk 2 for being capable of the properly selecting property various cards of receiving It is illustrated but it is also possible to be the construction for not using the ground of Kato disk 2 to insert cards into card insertion section 31, can suppresses to compare The plastic deformation of the elastic contact chip 43 in the case of card insertion section 31 is mistakenly inserted as the thick non-object card B of card A.

Also, the mode of the first contact 4 corresponding with object card A is not limited to the above embodiments, for example, it is also possible to be Construction, elastomeric base 431 and main elasticity that elastomeric base 431 and main flexure strip portion 432 continuously configure in card plug orientation Construction that piece portion 432 configures with turning back etc..

Also, in the above embodiments, enumerate makes non-object card detect that abutting part 6 turns into elastic base by punch process The example of the convex portion of the arc-shaped that the leading section (movable end 431b) in portion 431 bloats upward is illustrated, but right for non- For as card detection abutting part 6, it is also possible to by the card thickness side of support end 431a and movable end 431b to elastomeric base 431 It is adjusted to distance, and movable end 431b is set to non-object card detection abutting part 6 in itself.

In addition, in the above embodiments, it is continuous on card insertion direction to elastomeric base 431 and main flexure strip portion 432 Elastic contact chip 43 is illustrated, but elastic contact chip 43 can also turn into elastomeric base 431 and main flexure strip portion 432 is mutual The configuration of intersection.

Claims (5)

1. a kind of card connector, possesses：

Housing, it has the card insertion section for card insertion；And

Contact, it is disposed in the housing, and is contacted with suitable card,

Above-mentioned contact possesses the elastic contact chip that one end is supported in above-mentioned housing, is inserted in the pad of the object card of above-mentioned card insertion section Piece portion contacts with the contact portion for being formed at above-mentioned elastic contact chip,

Above-mentioned card connector is characterised by,

Above-mentioned elastic contact chip possesses：

Elastomeric base, its one end is supported in above-mentioned housing；

Main flexure strip portion, it can swingingly be supported in the elastomeric base；And

Contact portion, it is integrally formed in the main flexure strip portion,

Above-mentioned elastomeric base possess non-object card detection abutting part, the non-object card detect abutting part be supported in above-mentioned housing Support end position separated by a distance at be configured to than above-mentioned card insertion section bottom surface in the inner part, and above-mentioned elastomeric base with it is upper State main flexure strip portion larger compared to its spring constant.

2. card connector according to claim 1, it is characterised in that

It is larger that above-mentioned elastomeric base is formed as width or thickness compared with above-mentioned main flexure strip portion.

3. card connector according to claim 1 and 2, it is characterised in that

Above-mentioned non-object card detection abutting part is more prominent to card side than above-mentioned elastomeric base surface.

4. the card connector according to any one of claims 1 to 3, it is characterised in that

Above-mentioned elastic contact chip possesses the above-mentioned elastomeric base and above-mentioned main flexure strip portion for configuring with intersecting.

5. the card connector according to any one of Claims 1 to 4, it is characterised in that

Possesses the Kato disk for being capable of the properly selecting property various cards of receiving, inserting cards into above-mentioned card via above-mentioned Kato disk inserts Portion,

In above-mentioned housing, various contacts corresponding with each contact difference are equipped with,

Above-mentioned various contacts any one or all use and possess the contact that above-mentioned non-object card detects abutting part.