1. Field of the Invention
The present invention relates to a connector assembly, and more particularly, to a connector assembly capable of preventing arcing during mating process.
2. Description of the Prior Art
Recently, a connector with pogo pin has been implemented in a power plug coupled to a cable, wherein the power plug is used for mating with a power receptacle fixed on a notebook computer. When the power plug coupled to the cable is mated with the power receptacle on the notebook computer, the notebook computer can be charged or electrified for a user to operate, such as typing, playing video and so on. However, when long term use, the resistance between the power plug and the power receptacle will increase due to oxidation of the contacting surface of the pogo pin. As a result, the plug contact and the receptacle contact may be overheated during the mating process and further it will generate arcing and thus result in safety issue.
Thus, the present invention provides a connector assembly capable of preventing arcing during mating process for solving above drawbacks.
According to an embodiment of the present invention, a connector assembly includes a first connector and a second connector. The first connector is coupled to a first electronic device, and the second connector is coupled to a second electronic device and detachably mated with the first connector. The first connector includes a first housing and a magnetic member, and the magnetic member is installed inside the first housing and for generating magnetic field. The second connector includes a second housing and a magnetic sensor. The magnetic sensor is disposed in the second housing, and the magnetic sensor senses the magnetic field generated by the magnetic member when the second connector mates with the first connector, so as to drive the second electronic device to power the first electronic device.
According to another embodiment of the present invention, the first connector further includes a first contact set fixed inside the first housing. Each of the first contacts has a contacting surface, and a normal of the contacting surface is not parallel to a mating direction. The second connector further includes a second contact set fixed inside the second housing. An end of each of the second contacts contacts the contacting surface of the corresponding first contact and slides along the contacting surface from a first contact position to a second contact position when the second connector mates with the first connector along the mating direction.
In summary, the present invention adopts a design that the normal of the contacting surface of each of the first contacts is not parallel to the mating direction to allow the end of each of the second contacts of the second contact set to contact the contacting surface of the corresponding first contact when the second connector is inserted into the first connector along the mating direction, such that the end of the second contact slides from the first contact position to the second contact position. Accordingly, the oxidation layers on the end of the second contact and on the contacting surface of the first contact resulting from long term use will be scratched by the aforesaid sliding mechanism, so as to reduce resistance between the first contact and the second contact. In such a manner, the structure of the inclined surface adopted by the contacting surface of the first contact of the present invention not only prevents the first contact and the second contact from being overheated due to a large resistance, but also prevents the first contact and the second contact from arcing due to overheat when the first contact and the second contact are electrified, so as to enhance safety of the first connector and the second connector in use.
In addition, the present invention utilizes the control unit for driving the second electronic device to power the first electronic device when the magnetic sensor senses the magnetic field generated by the magnetic member, so as to confirm that current passes between the end of the second contact and the contacting surface of the first contact only when the end of the second contact slides along the contacting surface of the first contact from the first contact position to the second contact position. In such a manner, the present invention ensures that there will be no current passing between the end of the second contact and the contacting surface of the first contact before the oxidation on the end of the second contact and on the contacting surface of the first contact due to long term use is not scratched. Furthermore, it prevents the first contact and the second contact from being overheated due to the large resistance, as being electrified and to enhance the safety of the first connector and the second connector in use.
These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
In the following detailed description of the embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as “top,” “bottom,” etc., is used with reference to the orientation of the Figure(s) being described. The components of the present invention can be positioned in a number of different orientations. As such, the directional terminology is used for purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless limited otherwise, the terms “connected,” and “installed” and variations thereof herein are used broadly and encompass direct and indirect connections and installations. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
Please refer to
Please refer
In other words, in this embodiment, the contacting surface 423 of each of the first contacts 421 of the present invention adopts structure of the inclined surface for allowing an end of each of the second contacts 461 of the second contact set 46 to contact the contacting surface 423 of the corresponding first contact 421 when the second connector 34 is inserted into the first connector 32 along the mating direction R, such that the end of the second contact 461 slides along the contacting surface 423 from a first contact position shown in
In addition, the first connector 32 further includes a first shell member 48 covering the first housing 40, and the second connector 34 further includes a second shell member 50 covering the second housing 44. When the second connector 34 mates with the first connector 32, the first shell member 48 of the first connector 32 abuts against the second shell member 50 of the second connector 34, such that the first shell member 48 is electrically connected to the second shell member 50. Practically, the first shell member 48 is coupled to a ground end (not shown in figures) of the first electronic device 36. When the second connector 34 mates with the first connector 32, the first shell member 48 and the second shell member 50 conduct static electricity or noise on the second electronic device 38 to the ground end of the first electronic device 36. In other words, the first shell member 48 and the second shell member 50 can be utilized for shielding the first contact set 42 and the second contact set 46, such that the electromagnetic field generated by the first contact set 42 and the second contact set 46 as being transmitting high frequency signals does not affect other electronic components nearby the connector assembly 30. Furthermore, the first shell member 48 and the second shell member 50 can conduct the static electricity generated thereon to the ground, so as to prevent electromagnetic interference (EMI).
In this embodiment, each of the second contacts 461 of the second contact set 46 is a pogo pin. In other words, each of the second contacts 461 of the second contact set 46 includes a sleeve 463, a contact pin 465 and a resilient member 467. The sleeve 463 is fixed inside the second housing 44. The contact pin 465 is slidably disposed inside the sleeve 463. The resilient member 467 is disposed inside the sleeve 463 and abutting against the contact pin 465. When the second connector 34 mates with the first connector 32, as shown in
As shown in
As mentioned above, the present invention utilizes the control unit 56 for driving the second electronic device 38 to power the first electronic device 36 when the magnetic sensor 54 senses the magnetic field generated by the magnetic member 52, so as to confirm that current passes between the end of the second contact 461 and the contacting surface 423 of the first contact 421 only when the end of the second contact 461 slides along the contacting surface 423 of the first contact 421 from the first contact position shown in
In this embodiment, the magnetic sensor 54 is a Hall sensor, and the control unit 56 is a circuit board connected to the second housing 44. Structures of the control unit 56 are not limited to those mentioned in this embodiment. For example, the control unit 56 can be a chip disposed inside an external electronic device, such as an adapter. As for which one of the above-mentioned designs is adopted, it depends on practical demands. Practically, the second shell member 50 of the second connector 34 is made of magnetic material, such as steel, and the magnetic member 52 is a magnet. In such a manner, the magnetic member 52 is capable of attracting the second shell member 50 when the second connector 34 is mated with the first connector 32, so as to fix the first connector 32 and the second connector 34.
Please refer to
When the first connector 32 is assembled, the magnetic member 52 is assembled into the containing space 481 via the mating opening 485, as shown in
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Compared to the prior art, the present invention adopts a design that the normal of the contacting surface of each of the first contacts is not parallel to the mating direction to allow the end of each of the second contacts of the second contact set to contact the contacting surface of the corresponding first contact when the second connector is inserted into the first connector along the mating direction, such that the end of the second contact slides from the first contact position to the second contact position. Accordingly, the oxidation layers on the end of the second contact and on the contacting surface of the first contact resulting from long term use will be scratched by the aforesaid sliding mechanism, so as to reduce resistance between the first contact and the second contact. In such a manner, the structure of the inclined surface adopted by the contacting surface of the first contact of the present invention not only prevents the first contact and the second contact from being overheated due to a large resistance, but also prevents the first contact and the second contact from arcing due to overheat when the first contact and the second contact are electrified, so as to enhance safety of the first connector and the second connector in use.
In addition, the present invention utilizes the control unit for driving the second electronic device to power the first electronic device when the magnetic sensor senses the magnetic field generated by the magnetic member, so as to confirm that current passes between the end of the second contact and the contacting surface of the first contact only when the end of the second contact slides along the contacting surface of the first contact from the first contact position to the second contact position. In such a manner, the present invention ensures that there will be no current passing between the end of the second contact and the contacting surface of the first contact before the oxidation on the end of the second contact and on the contacting surface of the first contact due to long term use is not scratched. Furthermore, it prevents the first contact and the second contact from being overheated due to the large resistance, as being electrified and to enhance the safety of the first connector and the second connector in use.
Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
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