CN2789966Y - A guiding device for a card connector - Google Patents

Abstract

A guide device for card connector is prepared as setting support arms at two sides of central base of insulation base body separately and extending towards same direction, forming butt joint space between two support arms, setting slot on two support arms, setting terminal set and positioning terminal for forming electric connection for memory cards of different specifications on insulation base body, forming electric connection between contact on memory card and corresponding terminal set separately, covering a cover plate on insulation base body, setting guide portion for guiding memory card to be inserted in base of insulation body and forming limit portion at two sides of guide portion of insulation body, setting elastic piece on cover plate for supporting memory card on surface. It makes the memory card guided by the guiding slant surface when inserting without touching other terminal set by mistake. Meanwhile, the friction resistance can be reduced, the moving path is smoother, and the memory card is more stable after being inserted and positioned through the positioning plane.

Description

A guiding device for a card connector

Technical field:

The utility model relates to the technical field of connectors, in particular to a guiding device for a card connector.

Background technique:

The positioning structure of the traditional memory card and connector is to fix the connector housing on the circuit board, and then insert the memory card into the connector to achieve the purpose of electrical connection between the memory card and the connector. Different types of memory cards have different appearances, sizes and shapes. Different types of memory cards must be plugged into a specific type of connector that matches the type, so that the connector can read the memory data in the memory card. In this way, It is also limited by the format of the connector when used, and it is impossible to replace and use different memory cards. Therefore, a variety of different types of connectors must be installed on the circuit board, which increases the area of the circuit board and relatively increases the space occupied. big.

Therefore, people have researched and developed a connector that can provide a variety of memory cards with different specifications, and the internal terminals of this connector that can be inserted into a variety of memory cards are mostly arranged in a front-back arrangement. , and cooperate with the insulating base body to be provided with different types of slots, so that various types of memory cards can be inserted into the insulating base body in a positive push-in manner. However, although this design can solve the problem that a single connector can only use one However, there are many types of memory cards used in the multi-card connector, and the types and sizes of the various memory cards are not the same, so that the insulating base must be provided with slots for various memory cards, which will lead to The overall thickness of the insulating base body is greatly increased, and the space occupied by it is also increased.

Therefore, someone has designed another connector that can provide a variety of memory cards with different specifications, and the internal terminal settings of this connector that can be inserted into a variety of memory cards are mostly staggered up and down. It is electrically connected with a specific memory card in a specific way, so that when different memory cards are pushed into the connector, there are two types of push-in or reverse-push. Although this design can solve a single connection The connector can only use one kind of memory card, but because there are many types of memory cards used in the multi-card connector, the pushing direction of the various memory cards can be forward or reverse. If the user is not careful If the memory card is inserted upside down, it is easy to cause the conductive terminals set in the insulating base to bend, deform or break and become unusable, and then the memory card cannot be pulled out and is stuck in the connector, and there is no device inside the insulating base. Any guiding device not only makes it difficult to align the memory card when it is inserted, but also causes the memory card to shake due to no contact after insertion and positioning, and even causes the memory card to fall off due to unstable shaking, resulting in more serious consequences.

Utility model content:

The technical problem to be solved by the utility model is to provide a guide device for a card connector, which makes the memory card more stable after being inserted and positioned.

The technical solution of the utility model is:

A guiding device for a card connector. Support arms are respectively extended in the same direction on both sides of the central base of an insulating base body. A docking space is formed between the two support arms. The two support arms have slots and are inserted through the insulating base body. There are terminal groups and positioning terminals that can be electrically connected to memory cards of different specifications. The contacts on the memory card are respectively electrically connected to the corresponding terminal groups. There is a guide part that can guide the insertion of the memory card, and limit parts are formed on both sides of the guide part of the insulator, and the cover plate has a resist elastic piece that elastically resists the surface of the memory card.

The terminal group is divided into a first terminal group, a second terminal group and a third terminal group. The first terminal group and the second terminal group are arranged on the base of the insulating seat body in a front and back direction, and the third terminal group is connected to the second terminal group. The terminal group is arranged up and down on the base of the insulating base.

The guide part and the limiting part 1 are oppositely arranged. The front end of the guiding part is formed with a guiding inclined surface, and the end of the guiding inclined surface extends to form a positioning plane, and the limiting part is formed with a stop surface.

There are one or more than one guiding part and limiting part respectively.

The insulating seat body is provided with slots for inserting memory cards of different specifications.

The cover plate is provided with an elastic piece electrically connected to the positioning terminal.

The outstanding effect of the utility model is that: the base of the insulating base is provided with a guiding part which can guide the balanced insertion of the memory card and form a balanced positioning after insertion, and the front end of the guiding part is formed with a guiding slope, and the end of the guiding slope is The extension forms a positioning plane, so that when the memory card is inserted, it can be guided by the guide slope without accidentally touching other terminal groups. At the same time, it can reduce frictional resistance and make the moving path smoother, and through the positioning plane, the memory card is more stable after being inserted and positioned.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model;

Fig. 2 is a three-dimensional combination diagram of the terminal and the insulating base of the present invention;

Fig. 3 is the three-dimensional schematic view of the utility model;

Fig. 4 is the three-dimensional appearance diagram when the memory card is pushed into the utility model;

Fig. 5 is a three-dimensional appearance view when another memory card is pushed into the utility model.

Detailed ways

See Fig. 1, 3, a kind of guiding device of card connector, it is an insulating seat body 1, and this insulating seat body 1 has a base 11, and on the two sides of base 11, there are supporting arms 12 extending in the same direction respectively, two A docking space 10 for pushing the memory card is formed between the support arms 12, and a corresponding guide part 111 is provided on the base part 11 of the insulating base 1, and a guide slope 1111 is formed at the front end of the guide part 111. The end of the inclined surface 1111 is extended to form a positioning plane 1112, and a limiting portion 112 is formed on both sides of the guiding portion 111 of the insulating base 1. The limiting portion 112 is formed with a stop surface 1121. The insulating base 1 is provided with different specifications. Insert the memory card into slot 13.

The terminal group 2 is provided with a first terminal group 21, a second terminal group 22 and a third terminal group 23. The first terminal group 21 and the second terminal group 22 are arranged on the base 11 of the insulating base body 1 in front and back sections. The three terminal groups and the second terminal group are arranged up and down on the base 11 of the insulating base 1, and on the two sides of the terminal group 2 are provided positioning terminals 24 that can detect whether the memory cards of various specifications are positioned or not. The guiding portion 111 is disposed between two terminals of the first terminal group 21 .

The cover plate 3 covers the top of the insulating base 1 , and the cover plate 3 has a plurality of resisting elastic pieces 31 that can elastically resist the surface of the memory card, and is provided with an elastic piece 32 that can form an electrical connection with the positioning terminal 24 .

Working principle: as shown in Figures 2, 4, and 5, it is the three-dimensional combination diagram of the terminal and the insulating seat body of the present invention, the three-dimensional appearance diagram of the memory card when it is pushed in, and the three-dimensional appearance diagram when another memory card is pushed in , as can be clearly seen from the figure, the card connector of the present invention is a memory card 4 that can be applied to various specifications and types. 4), it only needs to be pushed in from the opening of the docking space 10 following the slot 13 of the insulating base 1 until the memory card 4 is pushed to the position, the bevel angle 41 on the front end side of the memory card 4 is in line with the insulator The stop surfaces 1121 of the limiting portion 112 of 1 are held against each other to form a position, which enables the memory card 4 to form an electrical connection with the first terminal group 21; if you want to use a memory card with a long push path and a small form 4 (as shown in FIG. 5 ), it is only necessary to follow the corresponding slot 13 of the insulating base 1 and push it in from the opening of the docking space 10, so that the memory card 4 can be guided by the front end of the guide part 111. The guidance of the inclined surface 1111 makes the memory card 4 float upwards, so as to avoid the frictional force of the memory card 4 against the first terminal group 21 or the second terminal group 22, thereby forming a low insertion force and making the memory card 4 easy to insert. It is electrically connected with the third terminal group 23 in alignment, and after the memory card 4 is inserted and positioned, the memory card can be abutted against the positioning plane 1112 of the guide part 111, and then the limit part 112 can be limited and held against. It is stably fixed in the connector without shaking. Moreover, it can be pressed against the upper surface of the memory card 4 with the resisting elastic piece 31 of the cover plate 3, so that the memory card 4 forms a limit resistance of up, down, left, and right. , and can be more stable.

The utility model aims at providing a guide part 111 and a limit part 112 for guiding and limiting the movement and positioning of the memory card 4 in the docking space 10 of the insulating seat body 1 as the main protection points, through the guide part The guide slope 1111 of 111 allows the memory card 4 to float upward without being pressed against the first terminal group 21 or the second terminal group 22, thereby reducing friction and avoiding the first terminal group 21 or the second terminal group 22 damage, and make the moving path of the memory card 4 more stable, and after the memory card 4 is positioned, the cover plate 3 can be reused by the abutment of the limiting part 112 and the abutment of the irregular positioning plane 1112 of the guide part 111 The resisting shrapnel 31 is resisted on the upper surface of the memory card 4, so that the memory card 4 forms a limit resisting up and down, left and right, and forms a very stable state; the insulating seat body 1 of the present utility model has different slots 13 and terminal group 2, so memory cards of different specifications can be used.

Claims (6)

1. A guiding device for a card connector, with support arms (12) extending in the same direction on both sides of the central base (11) of the insulating seat body (1), and a docking space (12) is formed between the two support arms (12) 10), the two arms (12) have slots (13), and on the insulating base (1), there are terminal groups (2) and positioning for electrical connection of memory cards (4) of different specifications The terminals (24), the contacts on the memory card (4) form an electrical connection with the corresponding terminal group (2) respectively, and a cover plate (3) is covered on the top of the insulating base (1), and it is characterized in that: the insulator ( 1) The base (11) is provided with a guide part (111) that can guide the insertion of the memory card (4), and a limit part (112) is formed on both sides of the guide part (111) of the insulator (1), and the cover plate (3) has a resisting shrapnel (31) elastically resisting on the surface of the memory card (4). 2. A guiding device for a card connector according to claim 1, wherein the terminal group (2) is divided into a first terminal group (21), a second terminal group (22) and a third terminal group ( 23), the first terminal group (21) and the second terminal group (22) are arranged on the base (11) of the insulating base (1) in a front and back direction, the third terminal group (23) and the second terminal group ( 22) It is arranged up and down on the base (11) of the insulating base (1). 3. A guiding device for a card connector according to claim 1, characterized in that: the guiding part (111) and the limiting part (112) are oppositely arranged, and the front end of the guiding part (111) is formed with a guiding The slope (1111), the guide slope (1111) ends and extends to form a positioning plane (1112), and the limiting part (112) is formed with a stop surface (1121). 4. A guiding device for a card connector according to claim 1, characterized in that there are one or more guiding parts (111) and limiting parts (112). 5. A guiding device for a card connector according to claim 1, characterized in that: the insulating base (1) is provided with slots (13) for inserting memory cards (4) of different specifications. 6. A guiding device for a card connector according to claim 1, characterized in that: the cover plate (3) is provided with an elastic piece (32) electrically connected to the positioning terminal (24).

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