TWI430518B - Card edge connector - Google Patents

Description

Card edge connector

The invention relates to a card edge connector, in particular to a card edge connector which can be applied to, for example, a memory module, a graphics card module, a solid state hard disk module or a wireless network card module.

Previously used in memory modules such as desktop or portable notebooks, network communication card modules, multimedia audio and video modules and GPS modules, central processing units. Card-edge connectors such as decoders are often used because of miniaturization, and the gap between the terminals and the terminals cannot be further reduced, or signal interference is easily caused in implementation, and thus it is difficult to apply to high-frequency requirements. On the occasion. As shown in the first figure, it is an internal schematic diagram of a conventional card edge connector. The main body 2b is mainly covered by the insulative housing 1b, or the insulative housing 1b is formed first, and then the terminals 2b are inserted therein, and the terminals 2b are covered by the insulative housing 1b. The toothed nip portion 20b is provided to increase the holding force with the insulating body 1b. Therefore, in the structure in which the terminal 2b and the insulative housing 1b are fixed, the insulating body must have a sufficient thickness between the terminals 2b for the nip portion 20b of each terminal 2b to penetrate, so that it is difficult to further narrow the terminals 2b. The spacing, or the difficulty in forming the connector and the inconvenience of assembly.

In addition, as shown in the second figure, it is a cross-sectional view of another conventional card edge connector. Figure. The upper and lower terminals 2a and 3a are mainly disposed in the insulative housing 1a, and the card module (not shown) is inserted through the upper and lower terminals 2a and 3a. The upper and lower terminals 2a, 3a of the card edge connector must be provided with a fixing portion 20a, 30a in the direction formed by the terminal to be embedded in the insulative housing 1a, so that the upper and lower sides can be extended. The terminals 2a, 3a are firmly assembled with the insulative housing 1a to prevent the upper and lower terminals 2a, 3a from coming loose or offset. However, one of the reasons why the card edge connector cannot meet the high frequency requirement is that the upper and lower terminals 2a, 3a must be fixedly disposed in the insulative housing 1a, and the protruding portion 20a is protruded. 30a. When the upper and lower terminals 2a and 3a are transmitted by the signal, the cross section of the fixing portions 20a and 30a suddenly becomes large and wide, and thus the signal is disturbed.

Therefore, in order to solve the above problem, it is necessary to replace the fixing method in which the conventional connector terminal is provided in the insulating body by other technical means.

In view of the above, the present inventors have made an effort to improve and solve the above-mentioned shortcomings, and have devoted themselves to research and cooperate with the application of the theory, and finally proposed a present invention which is reasonable in design and effective in improving the above-mentioned defects.

The main purpose of the present invention is to provide a card edge connector, which mainly transmits a terminal of the card edge connector between the two through the two-piece insulating body, so that the fixing portion of the terminal can be connected with the terminal. The forming direction of the self is uniform without any occlusion or bifurcation structure to maintain a good signal transmission effect of the terminal.

In order to achieve the above object, the present invention provides a card edge connector including an insulative housing having a card insertion opening and a plurality of terminals disposed in the insulative housing, and each terminal includes a fixing portion and one end extending from the fixing portion Welding part, one by the fixing part a resilient arm extending at one end and a contact portion connected to the end of the elastic arm, wherein the contact portion protrudes from the card insertion opening; wherein the insulative housing further comprises a first terminal block and a second terminal block, and each The fixing portion of the terminal is disposed between the first and second terminal blocks.

In order to achieve the above object, the present invention provides a card edge connector including an insulative housing and a plurality of terminals disposed in the insulative housing. The insulative housing includes a first terminal block and a second terminal block, and the first terminal block The first terminal portion has a first wall portion and a plurality of first clamping portions, and the second terminal block also has a second wall portion and a plurality of second clamping portions, and the first and second wall portions are spaced apart to form a card insertion opening; The terminal includes a fixing portion, a welding portion extending from one end of the fixing portion, a resilient arm extending from the other end of the fixing portion, and a contact portion connected to the end of the elastic arm, the contact portion protruding in the card insertion opening; Wherein the first and second clamping portions of the first and second terminal blocks are opposite to each other, and the terminals are distributed between the opposite first and second clamping portions, and the opposite first and second clamping portions are sandwiched On the fixed part of each terminal.

In order to achieve the above object, the present invention provides a card edge connector including an insulative housing having a card insertion opening, and a plurality of first terminals and second terminals disposed in the insulative housing; each of the first terminals includes a first a fixing portion, a first welding portion extending from one end of the first fixing portion, a first elastic arm extending from the other end of the first fixing portion, and a first contact portion connected to the end of the first elastic arm, the first a contact portion protrudes from the side of the card slot; and each of the second terminals further includes a second fixing portion, a second soldering portion extending from one end of the second fixing portion, and a second extending portion extending from the other end of the second fixing portion a second elastic arm and a second contact portion connected to the end of the second elastic arm, wherein the second contact portion protrudes from the other side of the card insertion opening; wherein the insulating body further comprises a first terminal block and a second The terminal block is configured, and the first fixing portion of each of the first terminals is assembled The first and second terminal blocks are disposed, and the second fixing portions of the second terminals are covered by the second terminal block.

Compared with the prior art, the present invention can provide a good signal transmission for the terminals in the case where the distance between the terminals can be further reduced, and there is no need to provide any structure such as snapping or bifurcation for piercing the insulating body. The effect is especially applicable to high frequency signals.

<知知>

1a, 1b‧‧‧Insulated body

2b‧‧‧terminal

20b‧‧‧biting

2a‧‧‧Upper terminal

20a‧‧‧Fixed Department

3a‧‧‧ lower terminal

30a‧‧‧Fixed Department

<present invention>

1‧‧‧Insulating body

10‧‧‧First terminal block

100‧‧‧First wall

101‧‧‧First clamp

101’‧‧‧First clip

102‧‧‧First terminal slot

11‧‧‧Second terminal block

110‧‧‧ second wall

111‧‧‧Second clamp

111’‧‧‧Second clip

112‧‧‧Second terminal slot

12‧‧‧ Inserting bayonet

2‧‧‧First terminal

20‧‧‧First Fixed Department

21‧‧‧First Welding Department

22‧‧‧First elastic arm

23‧‧‧First contact

3‧‧‧second terminal

30‧‧‧Second fixed department

31‧‧‧Second welding department

32‧‧‧Second elastic arm

33‧‧‧Second contact

The first figure is a schematic internal view of a card edge connector.

The second figure is a schematic cross-sectional view of another card edge connector.

The third figure is a perspective exploded view of the present invention.

The fourth figure is a three-dimensional combination diagram of the present invention.

The fifth figure is a schematic view of the appearance of the first terminal of the present invention.

Figure 6 is a schematic view showing the appearance of the second terminal of the present invention.

The seventh figure is a schematic cross-sectional view of the first terminal of the first and second terminal blocks of the present invention.

The eighth figure is a schematic cross-sectional view of the second terminal of the first and second terminal blocks of the present invention.

Figure 9 is a schematic cross-sectional view showing another embodiment of the present invention.

The detailed description of the present invention and the accompanying drawings are to be understood by the accompanying claims .

Please refer to the third and fourth figures, which are respectively exploded perspective views and stereoscopic groups of the present invention. Figure. The present invention provides a card edge connector comprising an insulative housing 1 and a plurality of terminals 2, 3 disposed in the insulative housing 1; wherein: the insulative housing 1 is in the form of a horizontally long strip and extends thereon A card slot 12 is provided in the horizontal direction, and can be inserted into the insulative housing 1 such as an electronic card or a circuit board (not shown) to make electrical contact with the terminals 2 and 3 provided in the insulative housing 1.

Referring to FIG. 5 and FIG. 6 together, the terminals 2 and 3 can be divided into a plurality of first terminals 2 and a plurality of second terminals 3. In the embodiment of the present invention, the first terminal 2 can be located above the second terminal 3 (as shown in FIG. 7 ), and each of the first terminals 2 includes a first fixing portion 20 and a first a first soldering portion 21 extending at one end of the fixing portion 20, a first elastic arm 22 extending from the other end of the first fixing portion 20, and a first contact portion 23 connected to the end of the first elastic arm 22; The two terminals 3 also include a second fixing portion 30, a second soldering portion 31 extending from one end of the second fixing portion 30, a second elastic arm 32 extending from the other end of the second fixing portion 30, and a connecting portion The second contact portion 33 at the end of the second resilient arm 32. The first and second fixing portions 20 and 30 of the first and second terminals 2 and 3 are used for the terminals 2 and 3 to be disposed in the insulative housing 1 , and the first and second fixing portions 20 and 30 are extended at one end. The first and second soldering portions 21, 31 are provided for the connector to be soldered to the first substrate and the second elastic arms 22, 32 at the other end, such as a circuit board (not shown). The elastic contact effect when the card (not shown) is inserted is provided to ensure the contact between the first and second contact portions 23, 33 and the card (not shown).

As shown in the seventh figure, the insulative housing 1 mainly includes a first terminal block 10 and a second terminal block 11 which are assembled with each other. The first terminal block 10 has a lateral insulating body 1 laterally. The first wall portion 100 is formed, and the first clamping portion 101, 101' (101' is in parallel with the plurality of the first wall portion 100 and laterally spaced apart from each other. The second terminal block 11 also has a second wall portion 110 formed by extending the insulating body 1 laterally, and a plurality of second clamping portions 111 opposite to the first clamping portions 101, 101', 111' (111' is shown in FIG. 8), and the first and second wall portions 100, 110 are opposed to each other to form the card insertion opening 12 into which the card (not shown) is inserted into the insulative housing 1. At the same time, the contact portions 23, 33 of the terminals 2, 3 protrude from the card insertion opening 12; in more detail, the first terminal block 10 is provided with a plurality of first terminal slots 102 on the first wall portion 100, and The second terminal block 11 is also provided with a plurality of second terminal slots 112 on the second wall portion 110. The first and second elastic arms 22 and 32 of the first and second terminals 2 and 3 are respectively accommodated in the first and second terminals. In the terminal slots 102, 112, the first contact portion 23 of the first terminal 2 protrudes from the side of the card insertion opening 12, and the second contact portion 33 of the second terminal 3 protrudes from the other side of the card insertion opening 12. In the above, the first and second contact portions 23 and 33 can be elastically clamped to the card (not shown).

Therefore, the card edge connector of the present invention can be obtained by the above-described structural composition.

Accordingly, as shown in the seventh and eighth figures, the insulative housing 1 is formed by a first terminal block 10 and a second terminal block 11, and the first and second terminal blocks 10 and 11 are There are a plurality of first clamping portions 101, 101' and a plurality of second clamping portions 111, 111'. Therefore, each of the first terminals 2 can be distributed between the first and second clamping portions 101 and 111 (ie, as shown in FIG. 7 ), and the second terminals 3 can also be distributed to the opposite first and second terminals. Between the clamping portions 101', 111' (ie as shown in the eighth figure), the first and second clamping portions 101, 111 (or 101', 111') are interposed between the first terminals 2 (or In the fixing portions 20, 30 of the second terminals 3), in other words, the fixing portions 20, 30 of the respective terminals 2, 3 are fixed between the first and second terminal blocks 10, 11. Therefore, the fixing portions 20 and 30 of the first and second terminals 2 and 3 can be formed in the same manner as the forming direction of the terminal itself without any bifurcation structure, and can maintain a good signal transmission effect of the terminal. To meet the needs of high frequency.

It is worth mentioning that each of the first and second clamping portions 101, 111 (or 101', 111') may be a straight wall surface extending laterally or straightly, or an inclined wall surface, etc. The fixing portions 20, 30 of the two terminals 2, 3 are formed in a matching manner.

In addition, as shown in the ninth figure, the first and second terminals 2 and 3 are not necessarily clamped and fixed by the first and second terminal blocks 10 and 11, and the first and second terminals are also visible according to actual needs and conditions. 2, 3, one of which is sandwiched and fixed by the first and second terminal blocks 10, 11, and the other can be used, for example, by an insert-molding type; and in this embodiment, For example, the second terminal portion 2 covers the second fixing portion 30 of the second terminal 3, and vice versa.

Therefore, the card edge connector of the present invention can have at least the following effects:

1. The insulating body 1 is configured to clamp the terminals 2 and 3 through the first and second terminal blocks 10 and 11, so that the terminals 2 and 3 can be formed without any occlusion structure piercing the insulating body 1 or for inserting the insulating body. The bifurcation structure of 1 or the like can maintain a good signal transmission effect of each of the terminals 2, 3.

Secondly, when the terminals 2 and 3 do not need to form the above structure, the spacing between the terminals 2 and 3 can be further reduced, so that when applied to high-frequency signals and the like, the assembly can be easily assembled or not increased. Difficulties and so on.

3. When the card edge connector has a plurality of rows of terminals 2, 3, it can also be formed by a conventional injection overmolding method, such that the card edge connector is assembled on the insulating body 1 and the terminals 2, 3. More flexibility without any limited problems.

In summary, the present invention can achieve the intended purpose of use, and solve the lack of conventional knowledge. Because of its novelty and progress, it is fully in line with the requirements for invention patent applications, and applications are filed in accordance with the Patent Law. Please check and grant the patent in this case to protect the rights of the inventor.

However, the above description is only a preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and the equivalent techniques and means, etc., which are used in the description of the present invention and the contents of the drawings, are the same. It is included in the scope of the present invention and is combined with Chen Ming.

1‧‧‧Insulating body

10‧‧‧First terminal block

100‧‧‧First wall

101‧‧‧First clamp

102‧‧‧First terminal slot

11‧‧‧Second terminal block

110‧‧‧ second wall

111‧‧‧Second clamp

111’‧‧‧Second clip

112‧‧‧Second terminal slot

12‧‧‧ Inserting bayonet

2‧‧‧First terminal

20‧‧‧First Fixed Department

21‧‧‧First Welding Department

22‧‧‧First elastic arm

23‧‧‧First contact

3‧‧‧second terminal

30‧‧‧Second fixed department

31‧‧‧Second welding department

32‧‧‧Second elastic arm

33‧‧‧Second contact

Claims (16)

A card edge connector comprising: an insulative housing comprising a first terminal block and a second terminal block, the first terminal block having a first wall portion and a plurality of first clamping portions, and the second terminal The seat also has a second wall portion and a plurality of second clamping portions, the first and second wall portions are opposite to each other to form a card insertion opening; and a plurality of terminals are disposed in the insulating body, and each of the terminals comprises a fixing portion, a welding portion extending from one end of the fixing portion, a resilient arm extending from the other end of the fixing portion, and a contact portion connected to an end of the elastic arm, the contact portion protruding from the card insertion opening The first and second clamping portions of the first and second terminal blocks are opposite to each other, and the terminals are distributed between the opposite first and second clamping portions, and the first ones are opposite to each other. The two clamping portions are clamped on the fixing portions of the respective terminals. The card edge connector of claim 1, wherein the insulating system is a horizontally long strip. The card edge connector of claim 2, wherein the card slot is formed by extending the insulating body laterally. The card edge connector of claim 1, wherein the opposite first and second clip portions are flat wall faces. The card edge connector of claim 4, wherein the flat wall is lateral. The card edge connector of claim 4, wherein the straight wall system Straightforward. The card edge connector of claim 1, wherein the opposite first and second clip portions are inclined guide wall faces. The card edge connector of claim 1, wherein the first terminal block is provided with a plurality of first terminal slots on the first wall portion, and the second terminal block is provided on the second wall portion The second terminal slots, and the elastic arms of the terminals are respectively received in the first and second terminal slots. A card edge connector includes: an insulative housing having a card insertion opening; a plurality of first terminals, each of the first terminals comprising a first fixing portion and a first soldering portion extending from one end of the first fixing portion a first elastic arm extending from the other end of the first fixing portion, and a first contact portion connected to the end of the first elastic arm, the first contact portion protruding from the side of the card insertion opening; And a plurality of second terminals, each of the second terminals also includes a second fixing portion, a second soldering portion extending from one end of the second fixing portion, and a second elastic arm extending from the other end of the second fixing portion And a second contact portion connected to the end of the second elastic arm, the second contact portion protruding from the other side of the card insertion opening; wherein the insulative housing further comprises a first terminal block and a first The second terminal block is configured, and the first fixing portion of each of the first terminals is disposed between the first and second terminal blocks, and the second fixing portion of each of the second terminals is packaged by the second terminal block Covering, the first terminal block has a first wall portion and a plurality of first clamping portions, and The second terminal block also has a second wall portion and a plurality of second clamping portions. The first and second clamping portions of the first and second terminal blocks are opposite to each other, and the first terminals are distributed on the opposite ones. The first and second clamping portions are respectively sandwiched between the first and second clamping portions, that is, the first fixing portions of the first terminals. The card edge connector of claim 9, wherein the insulating system is a horizontally long strip. The card edge connector of claim 10, wherein the card slot is formed by extending the insulating body laterally. The card edge connector of claim 9, wherein the first and second wall portions are spaced apart to form the card insertion opening. The card edge connector of claim 9, wherein the opposite first and second clip portions are straight wall faces. The card edge connector of claim 13, wherein the straight wall surface is lateral. The card edge connector of claim 13, wherein the straight wall surface is straight. The card edge connector of claim 9, wherein the opposite first and second clip portions are inclined guide wall faces.