Connector

Connector

The present invention relates to a connector, in particular to a charging plug or a high-current plug, which has an outer casing made of an insulating material and at least one first contact element made of a conductive material in the outer casing, and a supplement is placed on the outer casing. The plug end formed by the connector is pluggable, and a wire end composed of a wire is capable of forming a mechanical and electrical connection with the outside, and at least one first contact element has an opening toward the plug end. end.

German Patent No. DE 20 2010 010 827 U1 is a high current connector capable of transmitting current, comprising an insulated casing with wires for mechanical and electrical connection, and an open edge made of conductive material. For connection with the reverse connector, in addition, a contact element is disposed in the housing to provide a contact surface and a contact pressure between the outer casing and the inserted reverse connector, the contact element having at least one Annular coil spring.

The main purpose of this creation is to improve the above described connectors so that the contacts inside the connectors can move relative to each other.

The connector of the present invention has at least one second contact element electrically connected to the first contact element and made of a conductive material, the first contact element having a flat section and the second The contact element has a second flat section, and the second contact element has an end face facing the wire end of the connector to provide an electrical connection with the wire, wherein the planar sections of the two contact elements are parallel to each other And being mounted toward each other, and the two flat sections are at least partially overlapped in an overlapping area with the vertical direction therebetween, and have a fixed distance therebetween, and at least one of the overlapping areas between the two has conductive And a coil spring made of an elastic material, which can provide an electrical connection between the first contact element and the flat section of the second contact element, the coil spring is subjected to a first contact pressure on a flat section of the first contact element A conductive contact is formed, and a conductive contact is formed by the second contact pressure on the flat section of the second contact element.

The advantage of the present invention is that the first contact element can be easily moved to the outer casing and the second contact element without adversely affecting the conductive contact between the two contact points; by this method, the conductive contact element is particularly suitable for high transmission. The current, for example 100 to 400 amps or more, and by the movability of the first contact element, simultaneously forms a contact protection for the conductive contact of the connector.

The connector of the present invention is designed by the beveled coil spring coil to create a particularly high contact pressure while forming a particularly good conductive contact.

By the annular structure of the coil spring, a particularly high number of contact faces can be formed, while at the same time forming particularly excellent electrical properties of the connector.

An annular coil spring located in an overlapping area between the flat sections of the two contact elements, wherein at least one axial side surface is mechanically and electrically connected to the first flat section, and the other axial side opposite to the axial side surface Then, mechanical and conductive contact is formed with the second flat section, so that a uniform distribution of the contact pressure on the contact surface can be achieved.

The annular coil spring forms a finite plane in the annular space, the plane is parallel to the long axis of the coil spring at the boundary with the coil spring, and the coil spring is disposed at least partially in the plane The overlapping area of the flat section is parallel to the two flat sections, so that a particularly high number of contact faces can be formed in the overlapping area between the two flat sections of the coil spring and the two contact elements.

The planar portion on the coil spring surrounds the first contact element such that a better mechanical fixation between the coil spring and the first contact element is achieved.

The distance between the flat sections of the two contact elements is smaller than the outer diameter of the coil springs, so that the inclination of the coiled coils relative to the long axis of the coil springs can additionally increase the contact pressure and the electrical connection of the associated connectors. characteristic.

For the purpose of achieving the above-mentioned purpose and effect of the above-mentioned use, a preferred and feasible embodiment will be described, and the details are as follows:

For the embodiment of the present invention, as shown in the first to fifth figures, a housing 10 is mainly provided. The housing 10 includes a plug end 12 and a wire end 14 at the plug end 12 of the housing 10. A cover 16, the function of the plug end 12 is provided with a plug or a connection between a complementary connector (not shown), and the connector disclosed in the present invention is externally plugged. Having at least one electrically conductive contact therebetween, wherein the outer casing 10 has at least one pair of contact elements made of a conductive material, namely a first contact element 18 and a second contact element 20 (as shown in the third figure), For ease of understanding, the third, fourth, and fifth figures show only a pair of contact elements (ie, the first contact element 18 and the second contact element 20), but in other figures there are seven such contact elements, also for simplicity. And clearly, the position and detail design of all contact elements are not shown in the drawings. The first contact element 18 has an open end 22 facing the plug end 12, on the front side of the open end 22. The cover is provided with an end cap 24 made of an insulating material.

The first contact elements 18 of each pair of contact elements are respectively movable relative to the inside of the housing 10 to a first position (as shown in the first and fifth figures) and a second position (as shown in the second and fourth figures) The second contact element 20 is in a fixed state with respect to the outer casing 10. For the sake of simplicity, the movement mechanism of the first contact element 18 is not shown in the figures. When in the first position, the first contact element 18 is Retracted into the space enclosed by the outer casing 10 and the cover 16, the first contact element 18 passes through the individual slots 26 in the cover 16 and extends toward the docking end 12 when in the second position. Out of the cover 16 and the exterior of the outer casing 10.

When the connector disclosed in the present invention is not plugged into the external connector, and the plug end 12 of the connector is in the exposed state, the first contact element 18 can be moved to the first position and protected from the user. Improper contact; at this time, only the cover 16 of the insulating material, the outer casing 10 of the insulating material, and the end cover 24 are exposed at the plug end, so that even if the connector disclosed in the present invention is in an unplugged state, The first contact element 18 can also be subjected to a voltage due to the conductive position and does not pose a risk to the user due to improper contact.

When the connector disclosed in the present invention is inserted into another external connector, the first contact member 18 can be extended from the first position through the cover 16 to the second position, such that each pair of contact elements A contact element 18 can each form an electrically conductive contact inside the external connector. In contrast, the first contact element 18 can be retracted from the second position to the first position before the connector disclosed in the present disclosure is withdrawn from the external connector. a position, for which a corresponding first protection mechanism can be preferentially set to ensure that the first contact element 18 can be moved to the second position when the connector disclosed in the present disclosure is inserted into the external connector In addition, a corresponding second protection mechanism may be preferentially provided to ensure that the connector and the external connector disclosed in the present disclosure are not separated when the first contact element 18 is located at a position other than the first position.

The connector disclosed in the present invention is connected to the wire end 14 to the wire of at least one conductive material. In order not to move the wire end 14 and the wire without moving the first contact element 18, each of the first contact elements 18 corresponds to The outer casing 10 is provided with a fixed second contact element 20 (as shown in the three figures to the fifth figure). In the third to fifth figures, only a pair of contact elements are shown for the sake of brevity and ease of understanding. (first contact element 18 and second contact element 20).

The first contact element 18 and the second contact element 20 of the pair of contact elements are both flat and mounted in parallel with each other, and the first contact element 18 and the wide side 28 of the second contact element 20 are oppositely mounted, respectively. In the overlapping area 30 between each pair of the first contact element 18 and the second contact element 20 (as shown in the fourth and fifth figures), at least one coil spring 32 made of a conductive and elastic material is mounted. The diameter of the coil spring 32 is the distance between the first contact element 18 and the second contact element 20, that is, the distance between the wide sides 28 of each pair of contact elements 18, 20 in the overlap region 30, such that the coil spring 32 An axially outer side is in contact with the first contact element 18, the other axial side is in contact with the second contact element 20, and the helical coil wire of the coil spring 32 is in contact with the first contact element 18 and the second contact element The components 20 respectively form a contact surface and a contact pressure. When the spiral coil wire of the coil spring 32 is deviated from the stationary state with respect to the long axis, that is, inclined with respect to the long axis of the coil spring 32, a contact pressure can be formed. The following way is achieved: by the first connection Element 18 and the distance element 20 consisting of an outer diameter smaller than the second contact line 32 of the coil spring.

The coil spring 32 is fixed to the first contact element 18 so as to be movable together with the first contact element 18, while the coil spring 32 is towed onto the second contact element 20 when the first contact element 18 is moved, A close electrical contact between the two contact elements can be maintained.

The second contact element 20 of each pair of contact elements has an open end and a front end face 34 that faces the wire end 14 of the connector disclosed in the present disclosure, the end face 34 functioning with a cable shaft or A conductive contact is formed between the circuits on the connector disclosed in the present application.

The coil spring 32 has a preferential shape in a ring shape, and the annular inner frame encloses a finite plane in a space which is parallel to the long axis of the coil spring 32 at the interface with the coil spring 32, by the coil spring 32 The annular structure, in principle, the coil spring 32 can form an annular curved surface in the space, the curved surface has two opposite axial end faces, and the spiral spring 32 is mounted between the first contact element 18 and the second contact element 20 according to the present invention. In the overlap region 30, the coil spring 32 is in contact with the first contact member 18 by a spiral disk line on an axial end face, and is in contact with the second contact member 20 at a spiral disk line on the other axial end face ( As shown in the third figure, in other words, neither of the two contact elements 18, 20 will pass over the contact surface with the coil spring 32, but by the axial end face of the coil spring 32 at the coil spring 32 and the two contact elements 18. A conductive contact is formed between 20 and 20, so that the coil spring 32 can be fixed to the first contact element 18, and when the first contact element 18 moves relative to the second contact element 20, the coil spring 32 can be ensured. Will slide or disengage In addition, as shown in the third figure, the planar portion of the annular inner frame of the coil spring 32 surrounds the first contact element 18, so that not only the additional reinforcing coil spring 32 can be fixed on the first contact element 18, but also the spiral can be maintained. The spring 32 is in the annular configuration between the two contact elements 18, 20.

Based on the cross-sectional representation, the annular coil springs 32 are not completely indicated in the fourth and fifth figures, which surround the narrower end faces of the flat first contact elements 18, according to the fourth and fifth figures. The embodiment shown in the figure has four coil springs 32. In fact, the number of other coil springs 32 can be selected in the overlapping region 30 between the two contact elements 18, 20, such as one, two, three, five. Or six.

In summary, the present application has achieved the intended purpose and effect, and is more desirable and practical than the prior art. However, the above embodiments are only specifically described for a preferred embodiment of the present invention. This embodiment is not intended to limit the scope of the invention, and all other equivalents and modifications may be included in the scope of the invention covered by the present invention.

<p>10. . . shell</p><p>12. . . Plug end</p><p>14. . . Wire end</p><p>16. . . cover</p><p>18. . . First contact element</p><p>20. . . Second contact element</p><p>twenty two. . . Open end</p><p>twenty four. . . End cap</p><p>26. . . Slot</p><p>28. . . Wide side</p><p>30. . . Overlapping area</p><p>32. . . Coil spring</p><p>34. . . End face</p>

The first figure shows a perspective view of the contact element of the presently-created embodiment fully incorporated into the housing.

The second figure shows a schematic cross-sectional view of the contact element of the present embodiment in which the contact element is completely extended.

The third figure is a partial perspective cross-sectional view of the present embodiment.

The fourth figure shows a schematic view of the first contact element in the second embodiment, that is, the extended position.

The fifth figure shows a schematic view of the first contact element in the first embodiment, that is, the income position.