BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a component for transmitting signals, especially to a connector with a circuit board.

2. Description of the Prior Arts

With increase of efficacy of an electronic component and capacity of a storage component, lines connected to these components should have corresponding transmitting capacity. Thus, the components and lines may comprise more pins. The pins in a connector of the line have to tightly abut the pins of the electronic component or the storage component. Because each pin may provide the same resistance, the total resistance may be proportional to an amount of the pins. In other words, more pins generate higher resistance, and thus a user has to exert larger force to connect or disconnect.

A conventional connecting structure is as follows: a connector has a circuit board91therein and the circuit board91has multiple metal electrodes (a.k.a. gold fingers) as pins, and an electronic component has multiple pins92, so that the metal electrodes of the circuit board91can be connected to the pins92of the electronic component. When connecting the connector and the electronic component, the circuit board91has to push the pins92away and then the circuit board91can be inserted into the electronic component, which connects the metal electrodes with the pins92. Because the conventional component only has a few pins, during insertion of the circuit board91, the user may sense a condition of the pins92and thereby adjust an insertion direction of the circuit board91. However, because a current component has more pins92, the user may hardly sense conditions of the pins92but can only force the circuit board91to move into the electronic component in a wrong direction. Therefore, the user may deform the pins92or push the pins92to depart from original sites and move into the electronic component further, which makes the electronic component unable to be electrically connected to the connector and need repair or replacement.

To overcome the shortcomings, the present invention provides a circuit board structure and a connector comprising the same to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a cable end connector that is capable of fixing an end of a cable and can be inserted into another device in several stages under less force, so the force may not deform pins of the device or make the pins detach from the device.

The cable end connector has a casing, a circuit board, and a plurality of electrodes. The casing has a through hole and two lateral guiding arms. The circuit board penetrates through the through hole and forms two gaps between the circuit board and the two lateral guiding arms. The circuit board has a top surface, a bottom surface, and a front surface. The circuit board has two protrusion portions formed on the front surface. Both of the two protrusion portions extends forward from the front surface and is symmetry to a first imaginary symmetry line in location. The first imaginary symmetry line extends along a forward-backward direction. Each of the two protrusion portions is symmetry to a second imaginary symmetry line in shape, and the second imaginary symmetry lines respectively pass through a center of said protrusion portion and extend along the forward-backward direction. The electrodes are parallelly arranged on the top surface and the bottom surface of the circuit board. The electrodes include four grounding electrodes. Two of the grounding electrodes located on the top surface and two of the grounding electrodes located on the bottom surface. The grounding electrodes has identical length and overlaps with the second imaginary symmetry lines of the two protrusion portions. The four grounding electrodes are the longest electrodes in the electrodes.

As a result, in the beginning of connecting the connector to another device, the at least one projecting body of the circuit board structure may abut a part of pins of a device but the board main body of the circuit board structure may not abut the remaining pins of the device. When abutting the pins of the device, the at least one projecting body may push the abutted pins away. In other words, the user only has to push part of the pins so the user may exert less force to counteract a resistance of the pins. After the user pushes the connector and thus the circuit board structure is inserted into the electronic device further, the board main body may abut the remaining pins. Because part of the pins have been pushed away by the projecting bodies, the board main body only has to counteract the resistance from the remaining pins. With the aforesaid process which inserts the circuit board structure into the electronic device in multiple stages, the user can use less force in every stage. As a result, when the insertion direction of the connector is incorrect, the user can feel conditions of the pins rather than uses larger force to deform the pins or push the pins to depart from original sites and move into the electronic component further.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

