CN106558778B - Card connector - Google Patents

Abstract

The invention discloses a card connector, which comprises an insulating body, a tray, terminals and a shielding shell. A movable detection terminal for detecting whether the tray is inserted into a proper position in the storage cavity is arranged in the insulating body. The movable detection terminal includes a cantilevered first elastic arm and a V-shaped second elastic arm connected with the cantilevered first elastic arm. When the tray has been inserted into the proper position in the storage cavity, the tray pushes the free end of the cantilevered first elastic arm of the movable detection terminal, and compresses the V-shaped second elastic arm, so that the movable detection terminal The electrical contact portion is in reliable electrical contact with the electrical contact pad of the fixed detection terminal. In the present invention, the cantilevered first elastic arm is supported by the V-shaped second elastic arm, therefore, the cantilevered first elastic arm will not fail due to excessive deformation under the push of the tray.

Description

card connector

technical field

The present invention relates to a card connector.

Background technique

In the prior art, a SIM card connector generally includes an insulating body, a tray, multiple SIM card terminals and a shielding shell. A receiving cavity is formed in the insulating body. The SIM card is loaded on the tray and inserted into the storage cavity of the insulating body together with the tray. A plurality of SIM card terminals are arranged in the insulating body, and are in electrical contact with the inserted SIM card. The shielding shell is installed in the insulating body to provide electromagnetic shielding for the plurality of SIM card terminals.

In order to ensure that the tray is inserted into the storage cavity at a proper position, in the prior art, a pair of detection terminals for detecting whether the tray is inserted into the storage cavity at a proper position is provided in the insulating body. When the tray has been inserted into a proper position in the receiving cavity, the tray pushes one detection terminal, so that a pair of detection terminals contact or separate from each other.

However, in the prior art, the detection terminals are all cantilever-type elastic terminals. During the process of inserting into the tray, the cantilever-type elastic terminals are prone to excessive deformation and failure under the push of the tray, especially when the card connector exists When there is a large manufacturing error.

Contents of the invention

The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and deficiencies in the prior art.

According to one aspect of the present invention, a card connector is provided, which can be used to insert a tray loaded with electronic cards. The card connector includes: an insulating body formed with a receiving cavity suitable for accommodating the tray; in said insulating body and adapted to make electrical contact with an electronic card in an inserted tray; and a shielding shell mounted on said insulating body. A movable detection terminal for detecting whether the tray is inserted into a suitable position in the storage cavity is provided in the insulating body; the movable detection terminal includes: a welding part, which is suitable for welding to On the circuit board; the fixed part is connected with the welding part and fixed in the insulating body; the cantilever-type first elastic arm is connected with the fixed part; the V-shaped second elastic arm is connected with the cantilever at one end The free ends of the first elastic arm are connected; and the electrical contact part is formed on the other end of the V-shaped second elastic arm.

According to an embodiment of the present invention, fixed detection terminals corresponding to the movable detection terminals are also provided in the insulating body; when the tray is not inserted into the storage cavity, the The movable detection terminal is separated from the fixed detection terminal; and when the tray has been inserted into a suitable position in the storage cavity, the tray pushes the movable detection terminal, so that The movable detection terminal and the fixed detection terminal are in contact with each other, and the fixed detection terminal includes: an electrical contact pad arranged on the surface of the inner side wall of the storage cavity; a welding part adapted to soldered to the circuit board; and a connecting part, connecting the electrical contact pad and the soldering part of the fixed detection terminal, and fixed in the insulating body, when the tray has been inserted into the receiving cavity When in a proper position, the tray pushes the free end of the cantilevered first elastic arm of the movable detection terminal, and compresses the V-shaped second elastic arm, so that the electrical contact of the movable detection terminal The contact portion is in reliable electrical contact with the electrical contact pad of the fixed detection terminal.

According to another embodiment of the present invention, the V-shaped second elastic arm is located between the cantilevered first elastic arm and the electrical contact pad of the fixed detection terminal; and the V-shaped second elastic arm The vertex of the V-shaped second elastic arm is closer to the fixed part of the cantilever-type first elastic arm than the two ends of the V-shaped second elastic arm.

According to another embodiment of the present invention, the storage cavity has an insertion port located at the front end of the insulating body, and the tray is inserted into the storage cavity from the insertion port; the electrical contact of the fixed detection terminal The pad is arranged on the surface of the inner side wall of the rear end of the receiving cavity; and the electrical contact portion of the movable detection terminal is opposite to the electrical contact pad of the fixed detection terminal.

According to another embodiment of the present invention, the movable detection terminal is formed by folding a single material plate.

According to another embodiment of the present invention, a pair of elastic locking arms are provided in the side walls on both sides of the insulating body; A resilient locking arm locks the tray in place.

According to another embodiment of the present invention, the elastic locking arm has a locking portion protruding toward the inside of the storage chamber, and recessed portions are respectively formed on both sides of the tray; and when the tray has been inserted into When the receiving cavity is in a proper position, the locking portion of the elastic locking arm snaps into the recessed portion of the tray.

According to another embodiment of the present invention, the card connector further includes a card ejection mechanism for ejecting the tray inserted into the storage cavity and the electronic card loaded therein from the storage cavity, and the card ejection The mechanism includes: a cam, pivotally installed on the inner wall of the insulating body; and a push rod, slidably installed in the slide groove of the insulating body, for pushing the cam to rotate, so as to pass through the The cam withdraws the inserted tray from the storage cavity.

According to another embodiment of the present invention, the cam has a first arm portion and a second arm portion located on both sides of the pivot point of the cam; when the card is ejected, the push rod pushes the cam the first arm of the cam, so that the second arm of the cam rotates and pushes the tray outward, so that the tray is withdrawn from the storage cavity.

According to another embodiment of the present invention, the push rod includes a main body part extending linearly, and a groove is formed on the inner end part of the main part, and the end part of the first arm part of the cam slides Fit into the groove of the push rod.

According to another embodiment of the present invention, the main body portion of the push rod has a handle portion that is located outside the storage cavity and is suitable for being held by a human hand.

According to another embodiment of the present invention, a plurality of different terminals suitable for electrical contact of a plurality of different electronic cards are arranged in the insulating body.

According to another embodiment of the present invention, a first terminal suitable for electrical contact with a SIM card and a second terminal suitable for electrical contact with an SD card are arranged in the insulating body.

In the card connector according to various embodiments of the present invention, the movable detection terminal is designed to include a cantilever-type first elastic arm and a V-shaped second elastic arm. In this way, during the process of inserting the tray into the storage cavity, the V-shaped second elastic arm is gradually compressed by the tray like a spring, thereby providing a sufficient elastic contact force. The support of the elastic arm, therefore, the cantilever type first elastic arm will not fail due to excessive deformation.

Other objects and advantages of the present invention will be apparent from the following description of the present invention with reference to the accompanying drawings, and may help to provide a comprehensive understanding of the present invention.

Description of drawings

FIG. 1 shows a schematic perspective view of a card connector according to an embodiment of the present invention, wherein the tray has been inserted into the receiving cavity of the insulating body;

Figure 2 shows the card connector of Figure 1 with the shield shell removed to reveal the internal structure of the connector;

Figure 3 shows the card connector of Figure 2 with the tray removed to reveal structures in the insulating body; and

FIG. 4 is a schematic perspective view of a movable detection terminal of the card connector shown in FIGS. 1-3 .

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

According to a general technical idea of the present invention, a card connector is provided, which can be used to insert a tray loaded with electronic cards. The card connector includes: an insulating body formed with a receiving cavity suitable for receiving the tray; terminals , arranged in the insulating body, and suitable for electrical contact with the electronic card inserted in the tray; and a shielding shell, installed on the insulating body. A movable detection terminal for detecting whether the tray is inserted into a suitable position in the storage cavity is provided in the insulating body; the movable detection terminal includes: a welding part, which is suitable for welding to On the circuit board; the fixed part is connected with the welding part and fixed in the insulating body; the cantilever-type first elastic arm is connected with the fixed part; the V-shaped second elastic arm is connected with the cantilever at one end The free ends of the first elastic arm are connected; and the electrical contact part is formed on the other end of the V-shaped second elastic arm.

FIG. 1 shows a schematic perspective view of a card connector according to an embodiment of the present invention, wherein the tray 400 has been inserted into the receiving cavity 201 of the insulating body 200 . FIG. 2 shows the card connector of FIG. 1 with the shield housing 100 removed to show the internal structure of the connector. FIG. 3 shows the card connector of FIG. 2 with the tray 400 removed to reveal the structure in the housing 200 .

In an exemplary embodiment of the present invention, a card connector is disclosed. As shown in FIGS. 1 to 3 , the card connector mainly includes an insulating body 200 , a tray 400 , terminals 310 , 320 and a shielding shell 100 .

As shown in FIGS. 1 to 3 , in the illustrated embodiment, a receiving cavity 201 is formed in the insulating body 200 . The tray 400 is used to load electronic cards (not shown). The electronic card loaded on the tray 400 is inserted into the receiving cavity 201 of the insulating body 200 together with the tray 400 . The terminals 310 , 320 are disposed in the insulating body 200 and are suitable for electrical contact with the electronic card inserted into the tray 400 in the receiving chamber 201 . The shielding shell 100 is mounted on the insulating body 200 to provide electromagnetic shielding protection for the terminals 310 and 320 .

In one embodiment of the present invention, the insulating body 200 may be a plastic body molded on the terminals 310 , 320 .

As shown in FIGS. 1 to 3 , in one embodiment of the present invention, a movable detection terminal 330 and a fixed detection terminal 330 for detecting whether the tray 400 is inserted into the appropriate position in the storage cavity 201 are provided in the insulating body 200 . The detection terminal 340. As shown in FIG. 3 , when the tray 400 is not inserted into the storage cavity 201 , the movable detection terminals 330 and the fixed detection terminals 340 are separated from each other. As shown in FIG. 2 , when the tray 400 has been inserted into the storage chamber 201 at a suitable position, the tray 400 pushes the movable detection terminal 330 so that the movable detection terminal 330 and the fixed detection terminal 340 contact each other. .

FIG. 4 is a schematic perspective view of a movable detection terminal of the card connector shown in FIGS. 1-3 .

As shown in Figures 1 to 4, in one embodiment of the present invention, the movable detection terminal 330 includes: a welding part 332, which is suitable for welding to a circuit board (not shown); Part 332 is connected and fixed in the insulating body 200; the cantilever type first elastic arm 334 is connected with the fixed portion 333; the V-shaped second elastic arm 335 is connected with the free end 334a of the cantilever type first elastic arm 334 at one end 335a and an electrical contact portion 331 formed on the other end 335b of the V-shaped second elastic arm 335 .

As shown in FIGS. 1 to 4 , in one embodiment of the present invention, the fixed detection terminal 340 includes: an electrical contact pad 341 disposed on the surface of the inner side wall 230 of the storage cavity 201 ; a welding portion 342 adapted to soldered to the circuit board; and the connecting part, connected to the fixed electrical contact pad 341 of the detection terminal 340 and the soldering part 342, and fixed in the insulating body 200.

As shown in FIG. 2 and FIG. 4 , in the illustrated embodiment, when the tray 400 has been inserted into the receiving chamber 201 at a proper position, the tray 400 pushes the cantilevered first elastic arm of the movable detection terminal 330 334 to the free end 334a, and compress the V-shaped second elastic arm 335, so that the electrical contact portion 331 of the movable detection terminal 330 is in reliable electrical contact with the electrical contact pad 341 of the fixed detection terminal 340.

In the card connector according to the foregoing embodiments of the present invention, the movable detection terminal 330 is designed to include a cantilevered first elastic arm 334 and a V-shaped second elastic arm 335 . In this way, during the process of inserting the tray 400 into the storage cavity 201, the V-shaped second elastic arm 335 is gradually compressed by the tray 400 like a spring, thereby providing a sufficient elastic contact force. At the same time, the cantilevered first elastic arm 334 is Being supported by the V-shaped second elastic arm 335 , therefore, the cantilevered first elastic arm 334 will not be excessively deformed and fail due to being pushed by the tray 400 .

As shown in Figures 3 and 4, in one embodiment of the present invention, the V-shaped second elastic arm 335 is located between the cantilevered first elastic arm 334 and the electrical contact pad 341 of the fixed detection terminal 340; and V The apex 335c of the V-shaped second elastic arm 335 is closer to the fixing portion 333 of the cantilever-type first elastic arm 334 than the two ends 335a, 335b of the V-shaped second elastic arm 335 .

As shown in FIG. 2 , FIG. 3 and FIG. 4 , in one embodiment of the present invention, the storage cavity 201 has an insertion port located at the front end of the insulating body 200 , and the tray 400 is inserted into the storage cavity 201 through the insertion port. The electrical contact pad 341 of the fixed detection terminal 340 is arranged on the surface of the inner side wall 230 of the rear end of the receiving cavity 201; 341 relative.

As shown in FIG. 4 , in one embodiment of the present invention, the movable detection terminal 330 is folded from a single material board.

As shown in FIGS. 2 and 3 , in the illustrated embodiment, a pair of elastic locking arms 500 are provided in the sidewalls on both sides of the insulating body 200 ; , a pair of elastic locking arms 500 lock the tray 400 in place.

As shown in FIG. 2 and FIG. 3 , in the illustrated embodiment, the elastic locking arm 500 has a locking portion 510 protruding toward the interior of the storage chamber 201 , and recessed portions 410 are respectively formed on both sides of the tray 400 ; and When the tray 400 has been inserted into the receiving cavity 201 at a proper position, the locking portion 510 of the elastic locking arm 500 is snapped into the recessed portion 410 of the tray 400 .

As shown in FIGS. 2 and 3 , in the illustrated embodiment, the card connector further includes a card ejection mechanism for withdrawing the tray 400 inserted into the storage cavity 201 and the electronic card loaded therein from the storage cavity 201 . The card ejection mechanism includes: a cam 700, pivotally mounted on the inner wall of the insulating body 200; and a push rod 600, slidably mounted in the chute 202 of the insulating body 200, for pushing the cam 700 to rotate, In order to withdraw the inserted tray 400 from the storage cavity 201 through the cam 700 .

As shown in FIGS. 2 and 3 , in the illustrated embodiment, the cam 700 has a first arm 710 and a second arm 720 located on either side of a pivot point 701 of the cam 700 . When ejecting the card, the push rod 600 pushes the first arm 710 of the cam 700 , so that the second arm 720 of the cam 700 rotates and pushes the tray 400 outward, so that the tray 400 withdraws from the storage chamber 201 .

As shown in FIGS. 2 and 3 , in the illustrated embodiment, the push rod 600 includes a linearly extending main body, and a groove is formed on the inner end 610 of the main body, and the first arm of the cam 700 The end portion of the portion 710 is slidably fitted into the groove of the push rod 600 . The main body of the push rod 600 has a handle 620 located outside the storage cavity 201 and suitable for being held by a human hand.

As shown in FIGS. 2 and 3 , in the illustrated embodiment, a variety of different terminals 310 , 320 suitable for electrical contact with a variety of different electronic cards are disposed in the insulating housing 200 .

As shown in Figures 2 and 3, in the illustrated embodiment, a first terminal 310 suitable for electrical contact with a SIM card (not shown) and a first terminal 310 suitable for electrical contact with an SD card (not shown) are provided in the insulating body 200 Shown) the second terminal 320 of electrical contact.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Can be combined freely.

Although the present invention has been described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

While certain embodiments of the present general inventive concept have been shown and described, it will be understood by those of ordinary skill in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept. The scope is defined by the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Furthermore, any element references in the claims should not be construed as limiting the scope of the invention.

Claims (13)

1. a kind of card connector, can be used for the pallet of grafting one loading electronic card, which includes:

Insulating body (200) is formed with a containing cavities (201), is suitable for accommodating the pallet；

Terminal (310,320) is arranged in the insulating body (200), and is suitable for and the electronic card in the pallet (400) of insertion Electrical contact；With

It shields shell (100), is mounted on the insulating body (200),

It is provided in the insulating body (200) for detecting whether the pallet (400) is inserted into the containing cavities (201) In suitable position movable inspection terminal (330)；

It is characterized by:

The movable inspection terminal (330) includes:

Weld part (332), is adapted to weld on circuit board；

Fixed part (333) is connected with the weld part (332), and is fixed in the insulating body (200)；

The first elastic arm of cantilevered (334) is connected with the fixed part (333)；

The second elastic arm of V-arrangement (335), the free end (334a) of one end (335a) and first elastic arm of cantilevered (334) It is connected；With

Electrical contacts (331) are formed on the other end (335b) of second elastic arm of V-arrangement (335).

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

The sense terminal of fixation corresponding with movable inspection terminal (330) is additionally provided in the insulating body (200) Sub (340)；

When the pallet (400) is not inserted into the containing cavities (201), the movable inspection terminal (330) with it is described Fixed inspection terminal (340) is separated from each other；And

When the pallet (400) has been inserted into the suitable position in the containing cavities (201), the pallet (400) is pushed The movable inspection terminal (330), so that the inspection terminal (340) of the movable inspection terminal (330) and the fixation It contacts with each other,

The inspection terminal (340) of the fixation includes:

Electrical contact pad (341) is arranged on the surface of the inner sidewall (230) of the containing cavities (201)；

Weld part (342), is adapted to weld on the circuit board；With

Interconnecting piece, connects the electrical contact pad (341) and weld part (342) of the inspection terminal (340) of the fixation, and is fixed on institute It states in insulating body (200),

When the pallet (400) has been inserted into the suitable position in the containing cavities (201), the pallet (400) is pushed The free end (334a) of the first elastic arm of cantilevered (334) of the movable inspection terminal (330), and compress the V-arrangement Two elastic arms (335), so that the inspection terminal of electrical contacts (331) and the fixation of the movable inspection terminal (330) (340) electrical contact pad (341) reliable electric contact.

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

Second elastic arm of V-arrangement (335) is located at the inspection terminal of first elastic arm of cantilevered (334) and the fixation (340) between electrical contact pad (341)；And

The vertex (335c) of second elastic arm of V-arrangement (335) than second elastic arm of V-arrangement (335) both ends (335a, 335b) closer to the fixed part (333) of first elastic arm of cantilevered (334).

4. card connector according to claim 3, it is characterised in that:

The containing cavities (201) have positioned at the insulating body (200) front end insertion port, the pallet (400) from The insertion port is inserted into the containing cavities (201)；

Inner sidewall of electrical contact pad (341) setting of the inspection terminal (340) of the fixation in the rear end of the containing cavities (201) (230) on surface；And

The electrical contact pad of the inspection terminal (340) of the electrical contacts (331) and the fixation of the movable inspection terminal (330) (341) opposite.

5. card connector described in any one of -4 according to claim 1, it is characterised in that: the movable inspection terminal (330) it is folded by monolithic flitch.

6. card connector described in any one of -4 according to claim 1, it is characterised in that:

A pair of of flexible latch arm (500) are provided in the side wall of the two sides of the insulating body (200)；And

When the pallet (400) has been inserted into the suitable position in the containing cavities (201), the pair of flexible latch arm (500) pallet (400) is locked at suitable position.

7. card connector according to claim 6, it is characterised in that:

The flexible latch arm (500) has the sticking department (510) towards the internal protrusion of the containing cavities (201), and institute It states and is respectively formed with recessed portion (410) on the two sides of pallet (400)；And

When the pallet (400) has been inserted into the suitable position in the containing cavities (201), the flexible latch arm (500) sticking department (510) is snapped into the recessed portion (410) of the pallet (400).

8. card connector described in any one of -4 according to claim 1, it is characterised in that:

The card connector further includes back card agency, pallet (400) and loading for that will be inserted into the containing cavities (201) It is exited from the containing cavities (201) in electronic card wherein,

The back card agency includes:

One cam (700), is pivotally mounted on the inner wall of the insulating body (200)；With

One push strut (600), is slidably mounted in the sliding slot (202) of the insulating body (200), described convex for pushing (700) rotation being taken turns, being exited from the containing cavities (201) with will pass through the cam (700) for the pallet (400) of insertion.

9. card connector according to claim 8, it is characterised in that:

The cam (700) has the first arm (710) and the of the two sides of the pivotal point (701) positioned at the cam (700) Two arms (720)；

When moving back card, the push strut (600) pushes the first arm (710) of the cam (700), so that the cam (700) the second arm (720) is rotated and is pushed outwardly on the pallet (400), so that the pallet (400) is from the containing cavities (201) it is exited in.

10. card connector according to claim 9, it is characterised in that:

The push strut (600) includes linearly extended main part, and is formed on the inner end of the main part (610) The terminal part of one groove, the first arm (710) of the cam (700) is slidably fitted to the recessed of the push strut (600) In slot.

11. card connector according to claim 10, it is characterised in that:

The main part of the push strut (600) has the handle for being suitable for manpower and holding positioned at the outside of the containing cavities (201) Portion (620).

12. card connector described in any one of -4 according to claim 1, it is characterised in that:

A variety of different terminals suitable for a variety of different electronic card electrical contacts are provided in the insulating body (200) (310、320)。

13. card connector according to claim 12, it is characterised in that:

It is provided with the first terminal (310) for being suitable for being in electrical contact with SIM card in the insulating body (200) and is suitable for and SD card electricity The Second terminal (320) of contact.