TWI691124B - Magnetic electrical connector and plug of same - Google Patents

Abstract

The present invention relates to a magnetic electrical connector. The connector includes a first plug and a second plug. The first plug includes a first body. The first body includes a first end surface and a second end surface opposite to the first end surface. A plurality of first electrodes, a micro-switch, and a first magnet are mounted on the second end surface. The plurality of first electrodes include a L electrode and a N electrode connected to the micro-switch in series respectively. The micro-switch is normally open. The second plug includes a second body. The second body includes a third end surface and a fourth end surface opposite to the third end surface. A plurality of second electrodes and a second magnet are mounted on the fourth end surface. The second electrodes correspond to the first electrodes one by one. When the first plug contacts the second plug, the first magnet attracts the second magnet, the first electrodes are electrically connected to the second electrodes one by one, and the second plug presses the micro-switch to make the micro-switch close.

Description

Magnetic electric connector and its joint

The invention relates to the technical field of alternating current plugs and sockets, in particular to a magnetic electrical connector.

Once the traditional wire plug and socket are connected, it is not easy to disengage. When a person accidentally pulls the wire, it may cause the device to fall down, the wire is damaged, the plug and socket are damaged, and the person trips and other hazards. At present, magnetic plugs and sockets have appeared in commercially available water heaters, which use magnetic attraction to connect the plugs and sockets. This kind of plug and socket are very labor-saving no matter when they are inserted or separated, and the plug and socket are easy to fall off and separate when the wire is accidentally pulled, which can avoid the danger of the above equipment being pulled down, wire damage, plug and socket damage, personnel tripping, etc. .

However, the above-mentioned magnetic plug connected to the wire has its terminals still live after being separated from the socket, which may cause electric shock. In addition, the above-mentioned magnetic terminal does not have a ground protection line, and thus does not have a ground protection function.

In view of this, it is necessary to provide a magnetic electrical connector and its joint that can solve the above problems.

A magnetic electrical connector includes a first joint and a second joint. The first connector includes a first seat body including a first end face and a second end face opposite to each other, a plurality of first electrodes, a micro switch and a first magnetic element are installed on the second end face, the The plurality of first electrodes include an L-pole first electrode and an N-pole first electrode respectively connected in series with the micro switch, and the micro switch is a normally open switch. The second joint includes a second seat body including a third end face and a fourth end face opposite to each other, a plurality of second electrodes and a second magnetic element are mounted on the fourth end face, the second electrode One-to-one correspondence with the first electrode. When the first joint and the second joint are in contact with each other, the first magnetic element and the second magnetic element attract each other, and the plurality of first electrodes and the plurality of second electrodes are in contact with each other to form an electrical connection, the The second connector touches the micro switch so that the micro switch is closed.

A first joint includes a first seat body, the first seat body includes a first end face and a second end face opposite to each other, a plurality of first electrodes, a micro switch and a first magnetic element are installed on the second end face The plurality of first electrodes include an L-pole first electrode and an N-pole first electrode respectively connected in series with the micro switch, and the micro switch is a normally open switch.

A second joint includes a second seat body including a third end face and a fourth end face opposite to each other, a plurality of second electrodes, a second magnetic element, and a collision are mounted on the fourth end face Element, the interference element is used to interfere with a micro switch to close the micro switch.

The magnetic electrical connector of the present invention includes a micro switch connected in series with the first electrode of the L pole and the first electrode of the N pole. When the first connector and the second connector are separated, the micro switch is disconnected. At this time, even if The first connector is also connected to a power source, and the first electrode is not charged, so as to avoid the risk of electric shock caused by people or animals accidentally touching the first electrode.

100, 200: magnetic electrical connector

10, 50: the first joint

20, 60: second connector

11: The first body

12: first end face

13: Second end face

121, 123, 125: Pin

131, 133, 135: first electrode

130: flange

1301: positioning groove

1303: accommodation space

1305, 5305: electrode receiving hole

1307: switch receiving hole

1309: magnet receiving hole

137: The first magnetic element

139, 539: micro switch

1391: elastic contact

21: second body

22: Third end face

23: Fourth end face

30: plug

2301: positioning bump

2302, 2303: electrode receiving hole

2304: magnet receiving hole

231, 233, 235: second electrode

237: Second magnetic element

535: E pole electrode

640: Collision element

FIG. 1 is a perspective view of the first embodiment of the present invention when the magnetic electrical connector is closed.

FIG. 2 is a perspective view of the magnetic electrical connector of FIG. 1 when opened.

FIG. 3 is a perspective view of the magnetic electrical connector of FIG. 1 when opened from another angle.

4 is an exploded view of the first joint of the magnetic electrical connector of FIG.

5 is a perspective view of the second embodiment of the present invention when the magnetic electrical connector is closed.

6 is a perspective view of the magnetic electrical connector of FIG. 5 when opened.

7 is a perspective view of another angle of the magnetic electrical connector of FIG. 5 when opened.

The present invention will be further described in detail below with reference to the drawings.

Please refer to FIG. 1, which is a magnetic electrical connector 100 according to an embodiment of the present invention. The magnetic electrical connector 100 includes a first connector 10 and a second connector 20. The front end of the first connector 10 can be connected to a standard three-wire power socket (not shown), and the rear end of the second connector 20 can be connected to a standard three-wire plug 30. The first connector 10 can cooperate with the second connector 20 to form an electrical connection.

Please refer to FIG. 2 to FIG. 4 together. The first connector 10 includes a first seat body 11 made of an insulating material, such as a resin material. The first seat body 11 includes a first end surface 12 and a second end surface 13 opposite to each other. Three pins 121, 123, and 125 are mounted on the first end surface 12. among them, The pin 121 is an L pole (hot wire) pin, the pin 123 is an N pole (neutral wire) pin, and the pin 125 is an E pole (ground wire) pin. The above pins 121, 123, 125, etc. are used to plug into a standard three-wire power socket.

In other embodiments, the pins 121, 123, and 125 may be omitted, so that the first connector 10 is directly electrically connected to a mains power line.

The first joint 10 further includes a flange 130 surrounding the second end surface 13. The flange 130 defines a notch at a predetermined position to form a positioning groove 1301. The flange 130 and the second end surface 13 form a receiving space 1303 together.

The second end surface 13 is formed with two electrode accommodating holes 1305, a switch accommodating hole 1307, and a magnet accommodating hole 1309. Among them, the magnet accommodating hole 1309 is located in the center of the second end surface 13, and the two electrode accommodating holes 1305 and the switch accommodating hole 1307 are arranged around the magnet accommodating hole 1309 as a center.

The first connector 10 further includes three first electrodes 131, 133, 135 fixed on the second end surface 13, a first magnetic element 137, and a micro switch 139. In the present embodiment, the three first electrodes 131, 133, and 135 are L-pole, N-pole, and E-pole electrodes, respectively. Among them, the L-electrode 131 and the N-electrode 133 are cylindrical and fixed in the two electrode accommodating holes 1305 respectively, and the E-electrode 135 is two elastic pieces disposed on the micro switch 139 oppositely. The micro switch 139 is fixed in the switch receiving hole 1307. The micro switch 139 includes an elastic contact 1391 between the E pole electrodes 135. The L pole electrode 131 is connected in series with the L pole pin 121 through a micro switch 139. The N pole electrode 133 is connected in series with the N pole pin 123 through a micro switch 139. The micro switch 139 is a normally open switch, that is, when the elastic contact 1391 is not pressed, the micro switch 139 is opened, thereby disconnecting the electrodes 131, 133 and the pins 121, 123 Electrical connection. When the elastic contact 1391 is pressed, the micro switch 139 is closed, thereby connecting the electrodes 131, 133 and the pins 121, 123. The E pole electrode 135 is not electrically connected to the micro switch 139, and the E pole electrode 135 is directly electrically connected to the E pole pin 125. Of course, in other embodiments, the E-electrode 135 can also be connected in series with the micro switch 139. The first magnetic element 137 is a magnet and is fixed in the magnet receiving hole 1309.

In other embodiments, the L electrode 131 or the N electrode 133 may be provided on the micro switch 139, as long as the L electrode 131 or the N electrode 133 is connected to the micro switch 139.

Referring to FIGS. 2 and 3, the second joint 20 includes a second seat body 21 made of an insulating material, such as a resin material. The second seat body 21 includes a third end face 22 and a fourth end face 23 opposite to each other. Three jacks (not shown) are formed on the third end surface 22 for mating with the standard three-wire plug 30.

In other embodiments, the jack on the third end surface 22 may be omitted, so as to directly connect the second connector 20 to the internal circuit of an electric appliance.

The fourth end surface 23 is a stepped surface. An edge of the fourth end surface 23 is provided with a positioning protrusion 2301. The positioning protrusion 2301 is used to cooperate with the positioning groove 1301 of the first joint. The fourth end surface 23 is also formed with electrode accommodating holes 2302 and 2303 and magnet accommodating holes 2304. The electrode receiving holes 2302, 2303 are provided around the magnet receiving hole 2304.

The second connector 20 further includes three second electrodes 231, 233, 235 fixed on the fourth end surface 23 and a second magnetic element 237. In the present embodiment, the three second electrodes 231, 233, and 235 are L-pole, N-pole, and E-pole electrodes, respectively. The three second electrodes 231, 233, 235 are It is in the shape of a cylinder and is fixed in the electrode receiving holes 2302 and 2303 respectively and protrudes from the electrode receiving holes 2302 and 2303. The second magnetic element 237 is a magnet, which is fixed in the magnet receiving hole 2304.

The second electrodes 231, 233, and 235 are electrically connected to the standard three-wire plug 30 through the jacks on the third end surface 22, respectively.

When in use, the first connector 10 can be plugged into a power socket, the second connector 20 can be connected to the plug 30, the first connector 10 can be substantially aligned with the second connector 20, and the second electrodes 231, 233 , 235 are inserted into the first electrodes 131, 133, 135. The fourth end surface 23 of the second joint 20 enters the receiving space 1303. The cooperation between the positioning protrusion 2301 and the positioning groove 1301 helps the second electrodes 231, 233, 235 to be accurately inserted into the first electrodes 131, 133, 135. The second electrode 235 presses the elastic contact 1391 to close the micro switch 139, so that a path is formed between the first electrode 131, 133 and the pin 121, 123, so that current can flow from the power outlet to the appliance. In the present embodiment, the second electrode 235 also functions as an abutting element that abuts the micro switch 139. The first magnetic element 137 and the second magnetic element 237 attract each other, thereby keeping the first joint 10 and the second joint 20 in contact. The first electrode 135 and the second electrode 235 are electrically connected to each other to provide ground protection for the electrical appliance.

When a person accidentally trips on the wire or separates the first connector 10 and the second connector 20, since the first connector 10 and the second connector 20 are in magnetic contact with each other, only a small force can make the first connector 10, The second joints 20 are separated from each other. When the first connector 10 and the second connector 20 are separated, the micro switch 139 returns to the off state, so that a disconnection is formed between the first electrodes 131 and 133 and the pins 121 and 123. At this time, even if the first connector 10 is still plugged into the power socket, the first electrode 131 and 133 are not charged, so as to avoid the risk of electric shock caused by people or animals accidentally touching the first electrodes 131 and 133.

Please refer to FIGS. 5 to 7, which disclose a magnetic electrical connector 200 according to a second embodiment of the invention. The magnetic electrical connector 200 includes a first joint 50 and a second joint 60. The magnetic electrical connector 200 is basically similar to the magnetic electrical connector 100, the difference is that the micro switch 539 of the first connector 50 is not provided at the position of the electrode, and the E-electrode 535 is not a shrapnel provided on the micro switch 539. Instead, it is a cylindrical electrode provided in the electrode receiving hole 5305. Corresponding to the micro switch 539, the second connector 60 is provided with a special contact element 640 for abutting the micro switch 539 outside the second electrode. When the first joint 50 and the second joint 60 are closed, the abutment element 640 abuts the micro switch 539, so that the micro switch 539 is closed.

The other structure of the magnetic conversion device 200 is the same as that of the magnetic conversion device 100, and will not be repeated here.

The present invention is not limited to what is disclosed in this embodiment. For example, an electrode insertion hole may also be formed on the first end surface 12 of the first connector 10 so that the first connector 10 is electrically connected to a plug. The first electrodes 131, 133, and 135 of the first joint 10 may not be cylindrical but cylindrical. The second electrodes 231, 233, and 235 of the second joint 20 may not be cylindrical but cylindrical. The third end surface 22 of the second connector 20 may also be formed with pins, so that the second connector 20 is connected to a power socket, and so on.

Understandably, for those with ordinary knowledge in the art, various other corresponding changes and modifications can be made according to the technical concept of the present invention, and all these changes and modifications should fall within the protection scope of the present invention.

10: First connector

20: Second connector

11: The first body

13: Second end face

131, 133, 135: first electrode

130: flange

1301: positioning groove

1303: accommodation space

137: The first magnetic element

139: Micro switch

1391: elastic contact

21: second body

22: Third end face

30: plug

Claims (8)

A magnetic electrical connector includes: a first joint including a first seat body, the first seat body includes a first end surface and a second end surface opposite to each other, a plurality of first electrodes, a A micro switch and a first magnetic element, the plurality of first electrodes include an L pole first electrode and an N pole first electrode respectively connected in series with the micro switch, the micro switch is a normally open switch; and the second connector includes A second seat body including a third end face and a fourth end face opposite to each other, a plurality of second electrodes and a second magnetic element are mounted on the fourth end face, the second electrode and the first electrode One-to-one correspondence; wherein when the first joint and the second joint are in contact with each other, the first magnetic element and the second magnetic element attract each other, and the plurality of first electrodes and the plurality of second electrodes are in contact with each other Forming an electrical connection, the second connector touches the micro switch so that the micro switch is closed, wherein a first electrode is mounted on the micro switch, and the first electrode mounted on the micro switch is two spring pieces facing each other, The micro switch also includes an elastic contact between the two spring pieces. The magnetic electrical connector according to claim 1, wherein, when the first joint and the second joint are in contact with each other, one of the second electrodes touches the micro switch so that the micro switch is closed. The magnetic electrical connector according to claim 1, wherein the plurality of second electrodes are each cylindrical, and the first electrodes other than the first electrode mounted on the micro switch are cylindrical. The magnetic electrical connector according to claim 1, wherein the plurality of first electrodes further include an E-pole first electrode, and the E-pole first electrode is not electrically connected to the micro switch. The magnetic electrical connector according to claim 1, wherein a plurality of pins are formed on the first end surface of the first connector for insertion into a power socket; a plurality of plugs are formed on the third end surface of the second connector Hole for insertion by a power plug. The magnetic electrical connector according to claim 1, wherein the first seat body includes a flange formed around the second end surface, and a positioning groove is formed on the flange; a fourth end surface of the second seat body A positioning protrusion is formed thereon, and when the first joint and the second joint are in contact with each other, the positioning protrusion is embedded in the positioning groove. The magnetic electrical connector according to claim 1, wherein a collision element is installed on the fourth end surface of the second joint, and when the first joint and the second joint are in contact with each other, the first magnetic element and the The second magnetic elements attract each other, and the collision element touches the micro switch so that the micro switch is closed. A first joint is characterized in that: the first joint includes a first seat body, the first seat body includes a first end face and a second end face opposite to each other, a plurality of first electrodes, a A micro switch and a first magnetic element, the plurality of first electrodes include an L pole first electrode and an N pole first electrode respectively connected in series with the micro switch, the micro switch is a normally open switch, and one of the first electrodes is mounted on On the micro switch, the first electrode mounted on the micro switch is two spring pieces opposite to each other, and the micro switch further includes an elastic contact between the two spring pieces.

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