CN201191683Y - Electronic card connector - Google Patents

Abstract

The utility model relates to the technical field of electric connectors, in particular to an electric connector grounding structure, a card inserting space with an opening at the front end is formed in a shell of the electric connector grounding structure, a plurality of signal terminals with pins are arranged in the card inserting space, a circuit substrate parallel to the card inserting space is arranged on one side of the shell, a metal cover body is arranged on the other side of the shell, and the electric connector is fixed on a circuit board of an electronic product through the metal cover body; the outer surface of the circuit substrate is provided with at least one electric grounding part, and the circuit substrate is mutually conducted and grounded with the circuit board of the electronic product through the contact of the electric grounding part and the connecting assembly; even if the circuit substrate of the electric connector is arranged in an upward protruding manner, the electric connector can completely guide the electromagnetic waves scattered on the circuit substrate by the electronic product to the circuit board of the electronic product through the connecting component, so that the electromagnetic waves are prevented from influencing the transmission signals of the electric connector.

Description

electronic card connector

Technical field:

The utility model relates to the technical field of electrical connectors, in particular to an electronic card connector.

Background technique:

At present, the use of various electronic cards (memory cards) has become increasingly frequent along with the innovation of various electronic products. At the same time, electronic cards of various sizes and specifications have already become an indispensable part of the application of various electronic products. However, no matter what kind of electronic card is in use, it must be inserted into the electronic card connector preset in the electronic product equipment, so that it can realize telecommunication transmission.

Currently, the electronic card connector is designed not only for a single connector, but also for multi-card sharing for various electronic cards, so as to save assembly space and facilitate operation and use by users. However, with the development of technology, the response and computing speed of electronic products are also increasing. When the signal speed inside electronic products increases, electromagnetic waves (EMI) are also generated, which will affect the electronic card connector. Transmitting signals causes electronic products to fail to operate or become unstable.

In order to overcome the interference of electromagnetic waves, as shown in Figure 1, it is an embodiment of the structure of a commonly used electronic card connector. The upper cover 11 is locked and fixed with the clamp block 101 and the clamping hole 111. The insulating body 10 cooperates with the metal upper cover 11 to form a card insertion space 12 with a front opening. The bottom wall 102 on one side of the insulating body 10 is assembled with a circuit. The substrate 13 , or the insulating body 10 directly replaces the bottom wall 102 through the circuit substrate 13 , and a grounding portion 112 is extended on both sides of the metal upper cover 11 , and is welded and fixed with the circuit board 14 of the electronic product. Through the above-mentioned structure, it is possible to provide different sizes and types of electronic cards to be plugged in, and to achieve telecommunication conduction.

When the electronic product generates electromagnetic waves due to the increase of the signal speed, the electromagnetic waves are scattered everywhere. At this time, the metal upper cover 11 of the electronic card connector 1 can receive the electromagnetic waves scattered on it, and pass through the metal upper cover 11 on both sides. The grounding portion 112 guides the electromagnetic wave to the circuit board 14 of the electronic product, so as to prevent the electromagnetic wave from interfering with the transmission signal of the electronic card connector 1 .

Although the above-mentioned structure can overcome the problem of electromagnetic waves, the internal space of electronic products is limited due to the gradual reduction in volume, so when the electronic card connector 1 is installed, the metal upper cover 11 is not all set outward, as shown in FIG. 2 Shown, it is another embodiment of the commonly used electronic card connector structure. On the circuit substrate 13 of the electronic card connector 1 , the electromagnetic wave cannot be effectively exported, thereby affecting the transmission signal of the electronic card connector 1 , and making the operation of the electronic product unstable.

Utility model content:

The purpose of this utility model is to provide a special electronic card connector for the deficiencies of the prior art, which makes the circuit board and the circuit board of the electronic product electrically conductive, and can guide and discharge the electromagnetic wave on the circuit board, thereby ensuring Electronics work stably.

In order to achieve the above object, the utility model is achieved through the following technical solutions: a card insertion space with a front opening is formed in the housing of the electrical connector, and a plurality of signal terminals with pins are arranged in the card insertion space. There is a circuit substrate parallel to the card insertion space on one side, and a metal cover is provided on the other side of the housing, and the electrical connector is fixed on the circuit board of the electronic product through the metal cover. It is characterized in that: the outer surface of the circuit substrate is provided with There is at least one electrical grounding part, and the circuit substrate is connected to the circuit board of the electronic product and grounded through the contact between the electrical grounding part and the connecting component.

In a preferred embodiment, the connecting component is a conductive shell, and a contact portion corresponding to the electrical grounding portion is provided on the connecting component, and the contacting portion contacts the electrical grounding portion of the circuit substrate. The metal covers of the connectors are in contact with each other, and the metal covers and the circuit board are provided with corresponding electrical grounding parts.

The two ends of the conductive shell are closely matched with the two sides of the metal cover fixed on the electrical connector, and the two sides are in surface contact.

Of course, the connecting component can also be soft conductive cloth, which is pasted on the electrical grounding part of the circuit board and the metal cover of the electrical connector, and the metal cover and the circuit board are provided with corresponding contacts. Electrical grounding part.

Except for the part directly bonded and fixed with the electrical grounding part between the conductive cloth and the circuit substrate, an insulating layer is provided to prevent short circuit of the circuit substrate.

Alternatively, the connection component is a conductive shell, a contact portion corresponding to the electrical grounding portion is extended from the conductive shell, and a circuit board for fixing the conductive shell to the electronic product is extended from the outer edge of the conductive shell on the fixed part.

The conductive housing is locked and fixed on the circuit board of the electronic product through the locking piece.

The circuit substrate is provided with a grounding contact corresponding to the signal terminal, and the electrical grounding portion is connected to the grounding contact.

Beneficial effects of the utility model: the electrical connector of the utility model is provided with at least one electrical grounding part on the outer surface of the circuit substrate, and the circuit substrate is electrically connected to the circuit board of the electronic product through the contact between the electrical grounding part and the connecting component. Even if the circuit board of the electrical connector is protruding upwards, the electrical connector can completely guide the electromagnetic waves scattered on the circuit board of the electronic product to the circuit board of the electronic product through the connecting component, so as to prevent the electromagnetic wave from affecting the electrical connection The transmission signal of the device.

Description of drawings:

Accompanying drawing 1 is the three-dimensional view of the electronic card connector structure commonly used in the prior art;

Accompanying drawing 2 is the perspective view of another embodiment of the commonly used electronic card connector structure in the prior art;

Accompanying drawing 3 is the structural representation of the utility model embodiment 1;

Accompanying drawing 4 is the partial enlarged view of B place in accompanying drawing 3;

Accompanying drawing 5 is the exploded view of the utility model embodiment 1;

Accompanying drawing 6 is the structural representation of the utility model embodiment 2;

Accompanying drawing 7 is the structural representation of the utility model embodiment 3.

Description of main component symbols:

1 electronic card connector

10 insulation body

101 block

102 bottom wall

11 metal cover

111 card hole

112 ground part

12 card space

13 circuit substrate

14 circuit board

A electrical connector

2 shell

21 blocks

22 card space

23 guide rail

24 wall

3 metal cover

31 card hole

32 connection part

4 circuit board

5 circuit substrate

51 Electrical grounding part

52 Ground contact

6 signal terminal

7 Connection components

71 Conductive housing

711 contact part

72 conductive cloth

73 Conductive housing

731 contact part

732 fixed part

8 locks

Detailed ways:

Embodiment 1 is shown in Figures 3 to 5. The electrical connector A is composed of the shell 2 and the metal cover 3, and the two are fixed with each other by the locking block 21 and the locking hole 31, and the metal cover 3 is extended. A connecting portion 32 is formed so that the electrical connector A can be soldered and fixed on the circuit board 4 of the electronic product through the connecting portion 32 to form an electrical grounding portion corresponding to the contact between the two, thereby achieving the effect of grounding. The housing 2 cooperates with the metal cover 3 to form a card insertion space 22 with a front opening and guide rails 23 on both sides, and a circuit board 5 is assembled on the side wall 24 of the housing 2, wherein the circuit board 5 can also directly replace the housing. 2, the card insertion space 22 is provided with a plurality of signal terminals 6 with pins, and the signal terminals 6 and the circuit board 5 are welded and fixed to each other. Through the above structure, the user can insert a single type of electronic card, or insert other types of electronic cards for use.

At least one electrical grounding part 51 is provided on the surface of the protruding outer edge of the circuit board 5 , and the circuit board 5 is provided with a grounding contact 52 matching the signal terminal 6 , and the grounding contact 52 and the electrical grounding part 51 are electrically connected to each other. The grounding contact 52 contacts the electrical grounding portion 51 on the circuit board 5 through the connecting component 7 , and further conducts and grounds with the circuit board 4 of the electronic product.

Wherein the connection component 7 is a conductive shell 71, and a contact portion 711 corresponding to the electrical grounding portion 51 is extended thereon, the conductive shell 71 is installed and fixed on the electrical connector A, and the conductive shell 71 The two ends are closely matched with the two sides of the metal cover 3 fixed on the electrical connector A, so that the two sides are in surface contact, and the contact portion 711 contacts the electrical ground portion 51 of the circuit substrate 5 . When the electromagnetic wave of the electronic product is generated, the electromagnetic wave scattered on the circuit substrate 5 can be guided to the conductive shell 71 through the electrical grounding part 51, and then guided to the metal cover of the electrical connector A by the conductive shell 71 body 3, and then through the metal cover body 3, it is used to solder and fix it to the connection part 32 of the electronic product to guide and discharge it to the circuit board 4 of the electronic product, so as to avoid electromagnetic waves from affecting the signal transmission of the electrical connector A.

Embodiment 2 see accompanying drawing 6, which is a three-dimensional structure diagram of another embodiment of the grounding structure of the electrical connector provided by the utility model, wherein, the connecting component 7 can be a metal shell 71 tightly fitted to the electrical connector. On the metal cover 3 of the connector A, the connection component 7 can also be a soft conductive cloth 72, the conductive cloth 72 is attached to the electrical grounding part 51 of the circuit board 5, and the soft conductive cloth 72 is pasted In time, except for the part that is directly attached to the electrical grounding part 51 and is in contact with the fixed part, an insulating layer (not shown in the figure) is provided on the other part that is in contact with the circuit substrate 5, so that it can prevent the circuit substrate 5 from being damaged by the conductive cloth. 72, a short circuit occurs, and the other end of the conductive cloth 72 is attached to the metal cover 3 of the electrical connector A. When the electromagnetic wave of the electronic product is generated, the electromagnetic wave scattered on the circuit substrate 5 can be guided to the flexible conductive cloth 72 through the electrical grounding part 51, and then guided to the terminal of the electrical connector A by the flexible conductive cloth 72. On the metal cover 3, the metal cover 3 is welded and fixed to the connecting portion 32 of the electronic product to guide and discharge to the circuit board 4 of the electronic product, so as to prevent electromagnetic waves from affecting the signal transmission of the electrical connector A.

Embodiment 3 See Figure 7, which is a perspective view of the third embodiment of the grounding structure of the electrical connector provided by the present invention, wherein the connecting component 7 is a conductive shell 73, and extends on it A contact portion 731 corresponding to the electrical grounding portion 51 is provided, and a fixing portion 732 is extended from the outer edge of the conductive housing 73, so that the conductive housing 73 can be fixed on the circuit board 4 by welding the fixing portion 732, or by The locking member 8 is locked on the circuit board 4 of the electronic product, and the contact portion 731 is in contact with the electrical ground portion 51 of the circuit substrate 5 . When the electromagnetic wave of the electronic product is generated, the electromagnetic wave scattered on the circuit substrate 5 can be guided to the conductive shell 73 through the electrical grounding part 51, and then directly guided to the circuit board 4 of the electronic product by the conductive shell 73 Discharge, so that the electromagnetic wave will not affect the signal transmission of the electrical connector A.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (8)

1. An electronic card connector. A card insertion space with a front opening is formed in the housing of the electrical connector. A plurality of signal terminals with pins are arranged in the card insertion space. One side of the housing has a terminal parallel to the card insertion space. The other side of the housing is provided with a metal cover, and the electrical connector is fixed on the circuit board of the electronic product through the metal cover. It is characterized in that: the outer surface of the circuit substrate is provided with at least one electrical grounding part, The circuit substrate and the circuit board of the electronic product are connected to each other and grounded through the contact between the electrical grounding part and the connecting component. 2. An electronic card connector according to claim 1, characterized in that: the connecting component is a conductive shell, and a contact part corresponding to the electrical grounding part is provided on the connecting component, and the contact part contacts the circuit board An electrical grounding part, the conductive housing is in contact with the metal cover of the electrical connector, and the metal cover and the circuit board are provided with an electrical grounding part in corresponding contact. 3. An electronic card connector according to claim 2, characterized in that: both ends of the conductive housing are tightly matched with both sides of the metal cover fixed to the electrical connector, and the two ends are in surface contact. 4. An electronic card connector according to claim 1, characterized in that: the connecting component is a soft conductive cloth, and the conductive cloth is attached to the electrical grounding part of the circuit board and the metal cover of the electrical connector body, and the metal cover and the circuit board are provided with corresponding electrical grounding parts. 5. An electronic card connector according to claim 4, characterized in that: except for the part directly attached to the electrical grounding part between the conductive cloth and the circuit board, the remaining part is provided with a avoidance circuit. An insulating layer where a short circuit occurs on the substrate. 6. An electronic card connector according to claim 1, characterized in that: the connecting component is a conductive shell, and a contact portion corresponding to the electrical grounding portion extends from the conductive shell, and the conductive shell A fixing part for fixing the conductive shell to the circuit board of the electronic product extends from the outer edge. 7. The electronic card connector according to claim 6, wherein the conductive housing is locked on the circuit board of the electronic product through a locking member. 8 . The electronic card connector according to claim 1 , wherein the circuit board is provided with a grounding contact corresponding to the signal terminal, and the electrical grounding portion and the grounding contact are electrically connected to each other.

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