Engagement relay for and a method for operating an electric machine, preferably embodied as a starter device, with an engagement relay

Patent metadata

Field	Value
Publication number	US-11536237-B2
Application number	US-201716335214-A
Country	US
Kind code	B2
Filing date	Sep 19, 2017
Priority date	Sep 20, 2016
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

The invention relates to an engagement relays ( 20 ) for an electric machine which preferably serves as a starter device ( 10 ) for engaging a pinion, wherein the engagement relay ( 20 ) has a contact device ( 65 ) for electrically connecting electrical contacts ( 120, 121 ) having a switching axis ( 67 ) which can be actuated for the purpose of electrical connection, having a thrust motor ( 60 ) which serves to shift the switching axis ( 67 ) and the thrust motor ( 60 ) has a movable part ( 57 ) which serves to activate the switching axis ( 67 ), wherein the movable part ( 57 ) is connected to a driver ( 85 ), wherein a stop part ( 84 ) can move relative to the movable part ( 57 ) of the thrust motor ( 60 ) in a state of rest of the engagement relay ( 20 ) there is a gap(s) between the stop part ( 84 ) and the driver ( 85 ), wherein after the switching of the engagement relay ( 20 ) a contact device ( 65 ) is activated and as a result a switch of the circuit of the starter motor ( 23 ) is closed, wherein a movable part ( 57 ) of a thrust motor ( 60 ) of the engagement relay ( 20 ) I connected to a driver ( 85 ) and by means of a switch-on-movement of the movable part ( 57 ) the driver ( 85 ) brings about an engagement force with an engagement lever ( 22 ), in order to mesh a pinion ( 25 ) in a toothed ring ( 15 ), characterized in that a stop part ( 84 ) is arranged between the movable part ( 57 ) of the thrust motor ( 60 ) and the driver ( 85 ), wherein firstly there is a gap(s) with an initial size between the driver ( 85 ) and the stop part ( 84 ) and when the movable part ( 57 ) of the thrust motor ( 60 ) moves during switching the gap(s) is made smaller.

First claim

The invention claimed is:

1. Engagement relay ( 20 ) for an electric machine, with the engagement relay ( 20 ) comprising a contact device ( 65 ) for the electrical connection of electrical contacts ( 120 , 121 ), with a switching axis ( 67 ) which must be actuated for the electrical connection, with a thrust motor ( 60 ), which serves to displace the switching axis ( 67 ) and with the thrust motor ( 60 ) comprising a movable part ( 57 ), which serves to actuate the switching axis ( 67 ), the movable part ( 57 ) being connected with a driver ( 85 ), wherein a stop part ( 84 ) is movable relative to the movable part ( 57 ) of the thrust motor ( 60 ) and has a gap (s) between the stop part ( 84 ) and the driver ( 85 ) when the engagement relay ( 20 ) is in a state of rest,
wherein a pin part ( 98 ) of the stop part ( 84 ) engages in a slot ( 95 ) of the driver ( 85 ), wherein the slot ( 95 ) extends between two end faces ( 93 , 96 ) of the slot ( 95 ), and thereby guiding the stop part ( 84 ) and the driver ( 85 ) relative to each other.

2. Engagement relay according to claim 1 , characterized in that a spring ( 86 ) keeps the stop part ( 84 ) and the driver ( 85 ) apart.

3. Engagement relay according to claim 1 , characterized in that the stop part ( 84 ) comprises a surface ( 104 ) that points in the radial outward direction and is guided with the same in a guide element ( 83 ).

4. Engagement relay according to claim 3 , characterized in that the driver ( 85 ) comprises a surface ( 88 ) that points in the radial outward direction and is guided with the same in the guide element ( 83 ).

5. Engagement relay according to claim 1 , characterized in that the driver ( 85 ) has a collar-like section ( 87 ) and the switching axis ( 67 ) has a stop part ( 75 ), and that another stop part ( 110 ) is arranged between the collar-like section ( 87 ) and the stop part ( 75 ) which, when in the resting state, is a stop for the collar-like section ( 87 ) and in the switching state a stop for the further stop part ( 75 ).

6. Engagement relay according to claim 5 , characterized in that the further stop part ( 110 ) is held between the guide element ( 83 ), in particular a collar ( 125 ) of the guide element ( 83 ) being formed as a socket, and a front face ( 128 ) of the movable part ( 57 ).

7. Starter device ( 10 ) with an engagement relay ( 20 ) according to claim 1 .

8. Engagement relay ( 20 ) for an electric machine, with the engagement relay ( 20 ) comprising a contact device ( 65 ) for the electrical connection of electrical contacts ( 120 , 121 ), with a switching axis ( 67 ) which must be actuated for the electrical connection, with a thrust motor ( 60 ), which serves to displace the switching axis ( 67 ) and with the thrust motor ( 60 ) comprising a movable part ( 57 ), which serves to actuate the switching axis ( 67 ), the movable part ( 57 ) being connected with a driver ( 85 ), wherein a stop part ( 84 ) is movable relative to the movable part ( 57 ) of the thrust motor ( 60 ) and has a gap (s) between the stop part ( 84 ) and the driver ( 85 ) when the engagement relay ( 20 ) is in a state of rest,
wherein the driver ( 85 ) has a collar-like section ( 87 ) and the switching axis ( 67 ) has a stop part ( 75 ), and that another stop part ( 110 ) is arranged between the collar-like section ( 87 ) and the stop part ( 75 ) which, when in the resting state, is a stop for the collar-like section ( 87 ) and in the switching state a stop for the further stop part ( 75 ).

9. Engagement relay according to claim 8 , characterized in that a spring ( 86 ) keeps the stop part ( 84 ) and the driver ( 85 ) apart.

10. Engagement relay according to claim 8 , characterized in that the stop part ( 84 ) and the driver ( 85 ) are guided relative to each other.

11. Engagement relay according to claim 8 , characterized in that a pin part ( 98 ) engages in a slot ( 95 ), thereby guiding the stop part ( 84 ) and the driver ( 85 ) relative to each other.

12. Engagement relay according to claim 8 , characterized in that the stop part ( 84 ) comprises a surface ( 104 ) that points in the radial outward direction and is guided with the same in a guide element ( 83 ).

13. Engagement relay according to claim 12 , characterized in that the driver ( 85 ) comprises a surface ( 88 ) that points in the radial outward direction and is guided with the same in the guide element ( 83 ).

14. Engagement relay according to claim 8 , characterized in that the further stop part ( 110 ) is held between the guide element ( 83 ), in particular a collar ( 125 ) of the guide element ( 83 ) being formed as a socket, and a front face ( 128 ) of the movable part ( 57 ).

15. Starter device ( 10 ) with an engagement relay ( 20 ) according to claim 8 .

Assignees

• Seg Automotive Germany Gmbh
• Daf Trucks Nv

Inventors

• Matsinger Johan
• Bojarkin Viktor
• Neumann Oliver

Classifications

• F02N11/087

  Details of the switching means in starting circuits, e.g. relays or electronic switches · CPC title

• H01H50/66

  with lost motion · CPC title

• H01H50/34

  Means for adjusting limits of movement; Mechanical means for adjusting returning force · CPC title

• F02N11/00

  Starting of engines by means of electric motors · CPC title

• H01H50/20

  movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil · CPC title