Negative jump start ground block for an automobile
A vehicular ground terminal, according to one embodiment of the present invention, provides a location to which an electrical connection may be made to a body of a vehicle that is easy to identify and use. The ground terminal includes a first ground block component connected to the body of the vehicle and a second ground block component detachably coupled to the first ground component. The second ground block component includes a base portion having a first width and a passageway therethrough, the first ground block component extending into the passageway and a connection portion attached to the base portion having a second width that is less than the first width and a polygonal shape.
1. A ground terminal for a vehicle body comprising:
a first ground block component connected to the vehicle body, the first ground block component having a first height; and
a second ground block component detachably coupled to the first ground block component, the second ground block component having a second height that is greater than the first height and comprising:
a base portion having a first width;
a passageway at least partially through the base portion that is configured to receive the first ground block component; and
a connection portion attached to the base, the connection portion having a polygonal shape and a second width that is less than the first width.
2. The ground terminal of claim 1 , wherein the second ground block component further comprises a visual ground block indicator formed on at least one of the base portion and the connection portion to indicate to a user that the second ground block component is electrically connected to the vehicle body.
3. The ground terminal of claim 2 , wherein the first ground block component comprises a first engagement formation on an outer surface thereof and the second ground block component further comprises a second engagement formation on an inner surface of the passageway, the first engagement formation mating with the second engagement formation to cause said detachable coupling of the first ground block component to the second ground block component.
4. The ground terminal of claim 3 , wherein the passageway extends entirely through the base portion and only partially through the connection portion such that an end of the connection portion covers an end of the first ground block component.
5. The ground terminal of claim 4 , wherein an outer surface of the connection portion has a plurality of flat portions that extend to the end of the connection portion.
6. A ground terminal for a vehicle body comprising:
a first ground block component connected to the vehicle body having a first height and a first engagement formation on an outer surface thereof; and
a second ground block component detachably coupled to the first ground block component, the second ground block component having a second height that is greater than the first height and comprising:
a base portion having a first width;
a passageway at least partially through the base portion that is configured to receive the first ground block and having a second engagement formation on an inner surface of the passageway, the first engagement formation mating with the second engagement formation to cause said detachable coupling of the first ground block component to the second ground block component;
a connection portion attached to the base, the connection portion having a polygonal shape and a second width that is less than the first width; and
a visual ground block indicator on at least one of the base portion and the connection portion to indicate to a user that the second ground block component is electrically connected to the vehicle body.
7. The ground terminal of claim 6 , wherein the passageway extends entirely through the base portion and only partially through the connection portion such that an end of the connection portion covers an end of the first ground block component.
8. The ground terminal of claim 7 , wherein the visual ground block indicator includes a plurality of at least one of letters and symbols embossed on the upper surface of the base portion of the second ground block component.
9. The ground terminal of claim 8 , wherein the second width is between 10 and 20 mm and an outer surface of the connection portion has flat portions that extend to the end of the connection portion, each flat portion having a width between 4 and 8 mm.
10. The ground block terminal 9 , wherein the first ground block component is a weld stud.
11. An automobile comprising:
a body comprising an electrically conductive material and shaped to form an engine compartment;
an engine coupled to the body and positioned within the engine compartment;
a battery coupled to the body and having a positive and a negative terminal, the battery not being positioned within the engine compartment;
a power conductor coupled to the body having a first portion connected to the positive terminal of the battery and a second portion extending into the engine compartment;
a power terminal comprising an electrically conductive material coupled to the body and positioned within the engine compartment;
a first ground block component secured to and extending a distance away from the body and having a first width and a first engagement formation on an outer surface thereof, the first ground block component being positioned within the engine compartment; and
a second ground block component comprising an electrically conductive material and having a cavity therein, the cavity having a depth that is greater than or equal to the distance and a second engagement formation on an inner surface thereof, the first ground block component extending into the cavity and the first engagement formation mating with the second engagement formation such that when an electrical component contacts the second ground block component, the electrical component is electrically connected to the body.
12. The automobile of claim 11 , further comprising an insulating cover on at least a portion of the body having a thickness and an opening therethrough, the distance being greater than the thickness and the first ground block component extending through the opening.
13. The automobile of claim 12 , wherein the second ground block component further comprises a visual ground block indicator embossed thereon to notify a user that an electrical ground connection may be made at the second ground block component.
14. The automobile of claim 13 , wherein the first engagement formation is a series of threads on the outer surface of the first ground block component and the second engagement formation is a series of threads on the inner surface of the second ground block component.
15. The automobile of claim 14 , wherein the second ground block component has a height that is greater than the distance and the cavity extends only partially through the second ground block component such that an end of the second ground block component covers an end of the first ground block component.