CN201000937Y - Card-inserting protection type connector - Google Patents

Abstract

The utility model relates to the technical field of card-inserting connectors, in particular to a card-inserting protection type connector, wherein a card-inserting space of a shell is at least provided with a first group of terminals and a second group of terminals at the rear, wherein each terminal is provided with an elastic contact part which respectively corresponds to a contact point of a first card and a second card; a protection isolation board sliding back and forth is disposed on the bottom surface of the card insertion space, and the top edge of the contact portion of the first set of terminals is exposed upward out of the guiding slot hole of the protection isolation board; insert the second card along protecting the division board above backward, bulldoze the contact site of first group terminal and down move to the guide slot hole of protecting the division board in, borrow by the second card and drive the protection division board backward, make the contact site of first group terminal drop and leave the guide slot hole, and accept in protecting the division board bottom, make the contact of second card switch on second group terminal, the utility model discloses simple structure can effectively avoid SD terminal conflict MS card metal-back, prevents the electrical short circuit, and the action is accurate, safe and reliable, durable.

Description

A card protection connector

Technical field:

The utility model relates to the technical field of card inserting connectors, in particular to a card inserting protection type connector.

Background technique:

At present, electronic cards are often used in computers, electronic dictionaries, etc. to expand memory, network cards, modems, and SCSI devices (such as high-capacity hard drives, scanners).

In addition to the PCMCIA memory card type, the electronic card also has MMC (Multi Media Card), CF (Compact Flash Card), SMC (Smart Media Card), MS (Memory Stick), SD (Secure Digital Memory Card) memory card and other specifications, It can be used in products such as PDAs, electronic dictionaries and digital cameras.

At present, the multi-card sharing connector is designed for multiple electronic cards, and one of the electronic cards can be selected for insertion alone. This type of shared connector generally has three rows of terminals at the front, middle and rear to electrically connect XD cards, SD cards and MS cards. In addition, this connector must be equipped with a swinging pressure plate for the middle row of terminals, so that when the long and thick MS card is inserted, the middle row of terminals can be pushed down through the swinging pressure plate to electrically connect the rear row of terminals .

However, this kind of swing pressure plate takes up a lot of space in the card insertion space, and must be supported by the middle row of terminals normally, which affects the structural stability. Moreover, it is not easy to accurately press and move the middle row of terminals by such a swinging pressing plate, so that the oblique portion of the middle row of terminals may still touch the metal shell surface of the MS card and cause an electrical short circuit.

Utility model content:

The purpose of this utility model is to provide a card protection type connector for the deficiencies of the prior art, which can prevent the SD terminal from touching the metal shell surface of the MS card, prevent electrical short circuit, and is durable and meets the needs of actual use.

In order to achieve the above object, the utility model is achieved through the following technical solutions: a card insertion space containing a front opening is formed in the housing, and at least the corresponding first and second cards with elastic contact parts are arranged in the card insertion space. The first group of terminals of the contacts and the second group of terminals at the rear, the bottom surface of the card insertion space of the housing is provided with a protective isolation plate that can slide back and forth and is driven backward by the second card. The protective isolation plate is provided with multiple It is used to accommodate the contact part of the first group of terminals to the guide slot at the bottom of the protective isolation plate, and is used to push the contact part of the first group of terminals to move down to the rear section of the protective isolation plate in the guide slot. The side projection is provided with a pushing part; the top edge of the contact part of the first group of terminals exposes the protection isolation plate through the guide slot of the protection isolation plate; the second card (MS card) goes backward along the protection isolation plate Insert, the second card (MS card) pushes the contact part of the first group of terminals and moves down to the guide slot of the protective isolation board, and the second card drives the pushing part of the protective isolation board to move backwards , the contact portion of the first group of terminals is lowered away from the guide slot and accommodated at the bottom of the protective isolation plate.

The contact portions of the first group of terminals are pressed and contacted with corresponding contacts on the first card when the first card is inserted backward along the upper surface of the protective isolation plate.

The front end of the guide slot is provided with a front end inner inclined wall for pushing the contact part of the first group of terminals into the bottom of the protective isolation plate; when the front end inner inclined wall pushes the contact part of the first group of terminals into The bottom of the protective isolation board.

The bottom of the protective isolation plate is provided with an extension slot communicating with the guide slot.

The pushing portion of the protective isolation plate has a forward L-shaped opening for abutting against the corresponding corner end of the second card.

One side of the card insertion space is provided with a card ejection mechanism for withdrawing the first and second cards, which contains a front and rear displacement slider. As for the blocking part, the first blocking part corresponds to abut against the corresponding corner end of the first card, and the second blocking part corresponds to abutting against the rear end of the pushing part of the protective isolation plate.

It can be seen from the above technical solution that the utility model connector can be used for inserting three types of electronic cards, namely the first card (SD card), the second card (MS card), the third card (XD card), and the third card (XD card). When the first, second, and third cards are inserted into the connector, they are respectively in contact with the corresponding first, second, and third groups of terminals in the connector, and the utility model is provided with a protection device capable of sliding back and forth on the bottom surface of the card insertion space of the housing. An isolation plate, and the protection isolation plate is provided with a plurality of guide slots, and a pushing part is protruded from the rear side of the protection isolation plate, and the top edge of the contact part of the first group of terminals is guided by the protection isolation plate The slot hole exposes the protective isolation plate. When the second card (MS card) is inserted, the MS card and the protective isolation plate press and move the SD terminal in sequence, so that the SD terminal is accommodated at the bottom of the protective isolation plate to prevent the SD terminal from touching the metal of the MS card. The shell surface prevents electrical short circuit, the action is accurate, safe, reliable, and durable, which meets the needs of actual use. To sum up, the utility model has a simple structure, takes up little space, and can effectively prevent the SD terminal from colliding with the metal shell of the MS card, prevent electrical short circuit, operate accurately, be safe and reliable, and be durable.

Description of drawings:

Accompanying drawing 1 is the structural representation of the card protection type connector of the present utility model;

Accompanying drawing 2 is the sectional view of the utility model;

Accompanying drawing 3 is the schematic diagram of the structure of the connector in Fig. 1 after its top cover is removed;

Accompanying drawing 4 is the view of another angle after removing the top cover of the connector in Fig. 1;

Accompanying drawing 5 is the schematic diagram of the structure of the connector in Fig. 2 after removing the protective isolation board;

Accompanying drawing 6 is the structural representation of the protective isolation board of the present utility model;

Accompanying drawing 7 is the view of another angle of protection isolation plate in Fig. 5;

Accompanying drawing 8 is the cross-sectional view of the protective isolation plate in Fig. 5 along the A-A section;

Accompanying drawing 9 is the schematic diagram of the structure when the MS card is initially inserted into the connector;

Accompanying drawing 10 is the structure diagram when MS card is fully inserted into the connector;

Accompanying drawing 11 is the top view of Fig. 10;

Accompanying drawing 12 is the structure diagram when SD card is fully inserted into the connector;

Accompanying drawing 13 is the structure diagram when XD card is fully inserted into the connector.

The names of the components corresponding to the symbols in the figure are as follows:

(10) Shell (11) Insulation seat (12) Top cover

(13) Card space (14) Track (15) Card block

(16) Card hole (17) Groove (21) The first group of terminals

(22) The second group of terminals (23) The third group of terminals (24) Contact part

(30) Card ejection mechanism (31) Slider (32) Heart-shaped guide groove

(33) Linkage rod (34) Spring (35) First gear joint

(36) The second blocking part (37) The third blocking part (40) Protective isolation plate

(41) Guide slot (42) Pushing part (43) Inner inclined wall

(44) Extension slot (51) First card (SD card) (52) Second card (MS card)

(53) The third card (XD card) (54), (55), (56) contacts (57), (58) angle ends

Detailed ways:

See accompanying drawings 1, 2, 3, 4, 5, 6, 7, and 8 for the embodiments. The housing 10 of the plug-in card protection type connector is composed of an insulating seat 11 and a top cover 12 butted together, and a card is used between the two. The block 15 and the locking hole 16 are matched and fixed. The insulating seat 11 cooperates with the top cover 12 to form a card insertion space 13 with a front opening and the rails 14 on both sides, so that the first card (SD card) or the second card (MS card) can be inserted separately, or the second card can be selected. Three cards (XD cards) are inserted.

The insulating seat 11 is provided with the first, second and third groups of terminals 21, 22, 23 in the card insertion space 13, so as to electrically contact the first card (SD card), the second card (MS card), the second card Three cards (XD card). The first group of terminals 21 is divided into two rows, suitable for the first card SD card and MMC card. At the same time, the insulating base 11 is provided with rows of grooves 17 on the bottom surface of the card inserting space 13 , allowing the elastic oblique body of the first group of terminals 21 and their contact parts 24 to enter the card inserting space 13 upwards.

The connector insulating seat 11 is provided with a protective isolation plate 40 sliding back and forth on the bottom surface of the card insertion space 13, and a card ejection mechanism 30 including a front and rear displacement sliding member 31 is arranged on one side of the card insertion space 13, and the card ejection mechanism 30 controls and maintains Or withdraw the first, second and third cards. The card ejecting mechanism 30 is provided with a heart-shaped guide groove 32 at one end of the slider 31. The heart-shaped guide groove 32 cooperates with the movable end of a connecting rod 33, and the other end of the slider 31 is matched with a spring 34 to make the card insertion When being pushed back displacement positioning. After pressing and releasing again, the sliding member 31 is moved forward by the restoring force of the spring 34 to eject the card. One side of the sliding member 31 of the card ejection mechanism 30 is provided with a middle first blocking portion 35, a rear second blocking portion 36 and a front third blocking portion 37, and the first blocking portion 35 is correspondingly against the second A corner end 57 corresponding to a card (SD card) 51, the second blocking portion 36 is correspondingly against the rear end of the pushing portion 42 of the protective isolation plate 40, and the third blocking portion 37 is correspondingly against the third card (XD card) corresponds to the corner end.

The protective isolation plate 40 is provided with a plurality of guide slots 41, and a pushing portion 42 is protruded on one side of the rear section thereof, and the top edge of the contact portion 24 of the first group of terminals 21 exposes the top edge of the protective isolation plate 40 upwards. Guide slot 41 . The guiding slot 41 of the protection isolation plate 40 is provided with a front inner inclined wall 43 , which pushes the contact portion 24 of the first group of terminals 21 to move down and enter the bottom of the protection isolation plate 40 .

The bottom of the protection isolation plate 40 is further provided with an extension groove 44 communicating with the guide slot 41 , and the extension groove 44 ensures that the first group of terminals 21 and their contact portions 24 are accommodated in the bottom of the protection isolation plate 40 . And the pushing portion 42 of the protective isolation plate 40 has a forward L-shaped opening for leaning against the corresponding corner end 58 of the second card (MS card) 52; meanwhile, the pushing portion 42 can lean against the card ejecting mechanism 30 backwards The sliding member 31 corresponds to the second blocking portion 36 .

The connector of this embodiment is mainly provided with a protective isolation plate 40 slidingly on the bottom surface of the card insertion space 13. When inserting a card, as shown in FIGS. Insert it backwards so that its front edge contacts the contact portion 24 of the first group of terminals 21, and as the second card (MS card) 52 continues to be inserted, the second card (MS card) 52 pushes the first group of terminals 21 The contact part 24 of the contact part 24 is smoothly bent down and moved into the guide slot 41 of the protective isolation plate 40, and then the pushing part 42 of the protective isolation plate 40 is driven backward by the second card (MS card) 52 to move backward, As shown in FIG. 11 , the contact portion 24 of the first group of terminals 21 is driven down by the inclined wall 43 at the front end of the guide slot 41 to leave the guide slot 41 to be accommodated at the bottom of the protective isolation plate 40 , as shown in FIG. 10 . shown, and enter the extension groove 44 of the protective isolation plate 40 and the groove 17 of the insulating seat 11, so as to prevent the contact portion 24 of the first group of terminals 21 from touching the metal shell surface at the bottom of the second card (MS card) 52, and prevent electrical sexual short circuit. The contacts 55 of the second card (MS card) 52 press and contact the second group of terminals 22 to achieve electrical connection.

When wanting to eject the card, press the second card (MS card) 52 again, and then release it, and drive the protective isolation plate 40 to move forward and recover by means of the sliding part 31 of the card ejecting mechanism 30 and its second blocking part 36, To withdraw the second card (MS card) 52 .

When inserting the first card (SD card) 51, as shown in Figure 12, when inserting the card, this first card (SD card) 51 is inserted backward along the upper side of the protective isolation plate 40, so that its contacts 54 correspond The contact portion 24 of the first group of terminals 21 is press-contacted, while the protective isolation plate 40 remains in place.

When the third card (XD card) 53, as shown in Figure 13, when inserting the card, this third card (XD card) 53 is inserted in this card insertion space 13, makes its contact point 56 corresponding press contact this third card. Set terminal 23 to achieve electrical connection.

The above description is only a preferred embodiment of the present utility model. The card protection type connector uses the MS card and the protective isolation plate 40 to press and move the SD terminal in sequence, so that the SD terminal is accommodated in the bottom of the protective isolation plate 40 to avoid SD. The terminals are in contact with the metal shell of the MS card to prevent electrical short circuit, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the patent application of the utility model are included in the scope of the patent application of the utility model.

Claims (6)

1, a kind of plug-in card protection type connector, formation one contains the plug-in card space of open front in its housing, at least be provided with in this plug-in card space the correspondence respectively have elastic contact part contact this first, second group of terminal of first group of terminal and rear thereof of two card contact, it is characterized in that: the bottom surface, plug-in card space of this housing be provided with one can before and after the protection division board that backward drives by second card that slides, this protection division board is provided with a plurality of contact sites that are used to accommodate first group of terminal to the guiding slotted eye of protecting the division board bottom, and the contact site that is used to push first group of terminal convexes with a pushing part toward back segment one side that is displaced downwardly to the protection division board in its guiding slotted eye; The contact site apical margin of this first group of terminal up exposes this protection division board through the guiding slotted eye of protection division board.

2, a kind of plug-in card protection type connector according to claim 1 is characterized in that: the contact site of described first group of terminal is separated by above the protection division board along this when inserting at first card backward and is compressed contact with corresponding contact on first blocks.

3, a kind of plug-in card protection type connector according to claim 1 is characterized in that: described guiding slotted eye front end is provided with skew wall in the front end that the contact site that is used to push first group of terminal enters protection division board bottom.

4, a kind of plug-in card protection type connector according to claim 1 is characterized in that: described protection division board bottom is provided with the extension slot that is communicated with this guiding slotted eye.

5, a kind of plug-in card protection type connector according to claim 1 is characterized in that: the pushing part of described protection division board has one for L shaped mouthful against this second card corresponding angles end forward.

6, a kind of plug-in card protection type connector according to claim 1; it is characterized in that: described plug-in card space one side is provided with the trip mechanism that this first and second card is withdrawed from a confession that contains front and back displacement sliding part; sliding part one side of this trip mechanism is provided with first receiving part and back segment second receiving part; this first receiving part correspondence is against the corresponding angle end of this first card, and this second receiving part correspondence is against the rear end, pushing part of this protection division board.

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