• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE1000559A1
    申请号:SE1000559
    申请日:2010-05-25
    公开日:2011-11-26
    发明作者:Peter Filipsson；Anders Kristoffersson
    申请人:Te Ls Sweden Ab；
    IPC主号:
    专利说明:

    15 20 25 30 good after disconnection and that the trailer can therefore pose a danger to other road users on the road.
    US 2006/0255921 A1 discloses a system in which warning lights and / or brake lights are activated during electrical disconnection of the trailer. The power after the coupling is obtained from a separate battery of the trailer.
    US 2,046,976 discloses a further system in which a warning light of a trailer is activated if the trailer should become detached from the towing vehicle while driving.
    EP 1 018 453 A2 discloses another system in which the trailer's warning light is activated during electrical disconnection from a towing vehicle's trailer contact.
    Common to these systems is that it is predetermined which light signals of the trailer will be activated after the trailer has been disconnected from the towing vehicle. However, this is a problem because such systems are not flexible. The object of the present invention is to at least reduce this problem and to provide a device for connection to a trailer's electrical system, which device increases the safety when setting up the trailer along the edge of a busy road.
    The device according to the invention is characterized in that the device comprises a control circuit for each light signal device, where each control circuit is arranged to partly sense the status of the light signal device in the first state, and partly to maintain the status of the light signal device when the light signal device goes from the first state to the second state. the condition.
    The invention will be described in more detail below with reference to the accompanying drawings.
    Figure 1 shows a circuit diagram of a light signal device of a trailer, where the light signal device is activated and controlled in a first state.
    Figure 2 shows the light signal device in figure 1, where the light signal device is activated and controlled in a second state.
    Figure 3 shows a circuit diagram of a light signal device of a trailer, where the light signal device is deactivated and controlled in a first state.
    Figure 4 shows the light signal device in Figure 3, where the light signal device is deactivated and controlled in a second state.
    Figure 5 shows a wiring diagram of a flashing light signal device of a trailer, where the light signal device is activated and controlled in a first state.
    Figure 6 shows the flashing light signal device in Figure 5, where the light signal device is activated and controlled in a second state.
    Figure 7 shows a circuit diagram of a light signal device and a flashing light signal device of a trailer, where the light signal devices are activated and controlled in a first state. Figure 8 shows the light signals in Figure 7, where the light signals are activated and controlled in a second state.
    Figure 9 shows a circuit diagram of an inactive light signal device and an active flashing light signal device of a trailer, where the light signal devices are controlled in a first state.
    Figure 10 shows the light signaling devices of Figure 9, where both the inactive light signaling device and the active flashing light signaling device are controlled in a second state.
    Drawings 1 to 10 show different parts and embodiments of a device for connection to a trailer's electrical system, which electrical system comprises a plurality of light signal devices 5, 6 and a multipole electrical socket 1 for connecting the light signal devices 5, 6 to a towing vehicle electrical system. The device comprises a control circuit for each light signal device 5, 6, where the respective control circuit maintains the status of the light signal device 5, 6 in the event of an electrical disconnection from the electrical system of the towing vehicle.
    Respective light signal devices 5, 6 can have either an active status where the light signal device 5, 6 is lit or an inactive status where the light signal device 5, 6 is off. The status of the light signal 5, 6 is controlled either from a first state, according to Figures 1, 3, 5, 7 and 9, where the electrical system of the trailer is connected to the electrical system of the towing vehicle so that the electrical system of the towing vehicle controls the status of the light 5, 6 or from a second condition, according to Figures 2, 4, 6, 8 and 10, where the electrical system of the trailer is disconnected from the electrical system of the towing vehicle and that only the control circuit is electrically connected to the electrical system of the trailer so that the control circuit controls the status of the light signal 5, 6.
    In the following, only an individual light signal device 5, 6 will be described, where the light signal device 5, 6 is in the first or the second state and where the light signal device 5, 6 has an active or an inactive status. It should be pointed out, however, that a trailer comprises a plurality of such light signals 5, 6, where at least a subset of these light signals 5, 6 may have an active status and a subset may have an inactive status.
    The invention provides that the individual status of each light signal device 5, 6 is maintained at a transition from the first state to the second state.
    Furthermore, the electrical system of the trailer comprises an external supply circuit 2, 2 'for supplying current from the electric vehicle of the towing vehicle via the socket 1 to the light signal device 5, 6, a voltage source 3 of the trailer for supplying current to the light signal device 5, 6 in the second state, a grounding circuit. 10 for connecting the negative pole of the voltage source 3 to a ground point of the towing vehicle and a charging circuit 15 for charging the current source 3 from the electrical system of the towing vehicle.
    The control circuit for each light signal device 5, 6 comprises an internal supply circuit 11, 11 'for supplying current from the voltage source 3 to the light signal device 5, 6 in the second state, a state circuit 7 for keeping the internal supply circuit 11, 11' broken in the first state. and for keeping the internal supply circuit 11, 11 'closed in the second state, and a holding circuit 8, 8' for maintaining the status of the light signal device 5, 6 at a transition from the first state to the second state.
    The multipole socket 1 comprises a contact pole group A, which comprises fourteen contact poles A1-A14, to which components of the trailer's electrical system and the control circuit of the device are electrically connected. The socket 1 is intended to be connected to a multipole connector 12 of a connecting cable (not shown) for connecting the electrical system of the trailer to the electrical system of a towing vehicle via the connecting cable.
    As previously mentioned, the light signal device 5, 6 can have either an active status where the light signal device 5, 6 is lit or an inactive status where the light signal device 5, 6 is off. The status of the light signal device 5, 6 is controlled either from a first state, according to Figures 1, 3, 5, 7 and 9, where the contact 12 is connected to the socket 1 so that the electrical system of the towing vehicle controls the status of the light signal device 5, 6 or from a second state. according to figures 2, 4, 6, 8 and 10, where the contact 12 is disconnected from the socket 1 and that only the control circuit is electrically connected to the electrical system of the trailer so that the control circuit controls the status of the light signal device 5, 6.
    In the case where the light signal device 5, 6 is active in the first state, a current flows through the external supply circuit 2, 2 '. The external supply circuit 2, 2 'connects the light signal device 5, 6 with a contact pole A4, A2 of the socket 1.
    The voltage source 3 of the trailer is intended to supply power to the light signaling device 5, 6 when the light signaling device 5, 6 is controlled in the second state. The voltage source 3 of the trailer has an operating voltage between 5-50 V and may include one or more batteries. That the internal voltage source 3 is arranged at the trailer, it is meant here that the voltage source 3 can be arranged either on the trailer or next to the trailer.
    The first contact pole A1 of the socket 1 is electrically connected via the earthing circuit 10 to the negative pole of the voltage source 3 and is in the first state connected to earth of the electrical system of the towing vehicle.
    The second contact pole A2 is electrically connected via the external supply circuit 2 'to the trailer's left turn signal lamp, light signal device 6, and is in the first state connected to the left turn signal function of the towing vehicle's electrical system.
    The third contact pole A3 is electrically connected via an external supply circuit to the right turn signal lamp of the trailer, (not shown), and is in the first state connected to the right turn signal function of the towing vehicle's electrical system.
    The fourth contact pole A4 is electrically connected via an external supply circuit to the brake light lamps of the trailer, (not shown), and in the first state is connected to a brake function of the electrical system of the towing vehicle.
    The fifth contact pole A5 is electrically connected via the external supply circuit 2 to the left position lamp of the trailer, light signal device 5, and is in the first state connected to the left position function of the electrical system of the towing vehicle.
    The sixth contact pole A6 is electrically connected via an external supply circuit to the right position lamp of the trailer, (not shown), and is in the first state connected to the right position function of the electrical system of the towing vehicle.
    The seventh contact pole A7 is electrically connected via an external supply circuit to the reversing light of the trailer, (not shown), and is in the first state connected to a reversing light function of the towing vehicle's electrical system.
    The eighth contact pole A8 is electrically connected to the fog light of the trailer, (not shown) via an external supply circuit, and is intended to be connected to a fog light function of the towing vehicle's electrical system via the multipole connecting cable.
    The ninth contact pole A9 to the twelfth contact pole A12 are free.
    The thirteenth contact pole A13 is electrically connected via the state circuit 7 to a first relay 13 of the control circuit of the device and is in the first state connected to a battery of the electrical system of the towing vehicle.
    The fourteenth contact pole A14 is electrically connected via the charging circuit 15 to a positive pole of the trailer's voltage source 3 for charging the voltage source 3 and is in the first state connected to a charge generator of the towing vehicle's electrical system. The control circuit of the device is arranged to partly sense the individual status of each light signal device 5, 6 in the first state, and partly to maintain the individual status of the light signal device 5, 6 at a transition from the first state to the second state. Figures 1-10 show the function of the control circuit in a number of different embodiments.
    In the case where the light signal device 5, 6 is active and is in the second state, a current flows through the internal supply circuit 11, 11 '. The internal supply circuit 11, 11 'connects electrically to the positive terminal of the voltage source 3 with the light signaling device 5, 6 and comprises a first track diode 17, 17', which ensures that no current can flow through the internal supply circuit 11, 11 ', in the reverse direction, towards voltage source 3.
    The state circuit 7 comprises a first relay 13, which keeps the internal supply circuit 11, 11 'broken in the first state and closes the internal supply circuit 11, 11' at a transition from the first state to the second state. In the first state, according to Figures 1, 3, 5, 7 and 9, the internal supply circuit 11, 11 'is broken at the first relay 13, since the current flowing through the state circuit 7, from the battery of the towing vehicle, holds it first relay 13 in an open position. In the second state, according to Figures 2, 4, 6, 8 and 10, the internal supply circuit 11, 11 'is closed at the first relay 13, since no current flows through the state circuit 7, the first relay 13 will be kept in a closed location. The holding circuit 8, 8 'is arranged in parallel with the light signaling element 5, 6. The holding circuit 8, 8' comprises a second relay 14, 14 '. When the light signal device 5, 6 is active, a current flows through the holding circuit 8, 8 ', which causes the second relay 14, 14' to keep the internal supply circuit 11, 11 'closed, as shown in Figures 1, 2, 5, 6, 7 and 8. When the light signal device 5, 6 is inactive, no current flows through the holding circuit 8, 8 ', which causes the second relay 14, 14' to keep the internal supply circuit 11 broken, as shown in Figures 3 and 4.
    The holding circuit 8, 8 'further comprises a second blocking diode 18, 18', which ensures that no current can flow through the holding circuit 8, 8 'in the rearward direction towards the light signal 5, 6.
    Furthermore, the holding circuit 8, 8 'comprises a capacitor 9, 9', which is connected in parallel with the second relay 14, 14 '. When the light signal device 5, 6 is active in the first state, according to Figures 1, 5 and 7, the capacitor 9, 9 'is charged by the current in the holding circuit 8, 8' from the electrical system of the towing vehicle.
    In the event that the electrical system of the towing vehicle is disconnected from the electrical system of the trailer, the active light signal device 5, 6 will go from the first state, where the light signal device is supplied with current from the towing vehicle electrical system, to the second state, according to Figures 2, 6, and 8. the light signal device 5, 6 is supplied with current from the power source 3.
    The capacitor 9, 9 ', which is charged in the first state, will, during the transition from the first state to the second state, retain a voltage across the second relay 14, 14' for a time, so that the second relay 14, 14 'keeps the internal supply circuit 11, 11' closed until a current is caused to flow through the holding circuit 8, 8 'from the voltage source 3 via the internal supply circuit 11, 11'.
    The current from the voltage source 3 of the trailer, which now flows in the holding circuit 8, 8 ', causes the second relay 14, 14' to be maintained drawn, so that the internal supply circuit 11, 11 'will be closed even in the second state.
    This means that the active status of the light signal device 5, 6 will be maintained at a transition from the first state to the second state.
    Below are a number of different embodiments of a light signal device 5 with a fixed light and a light signal device 6 with a flashing light. In the exemplary embodiments, the light signal devices 5, 6 are shown partly in the first state and partly in the second state after a transition from the first state.
    Figure 1 shows the left position lamp 5 in the first state, where the status of the left position lamp 5 is active, i.e. it glows with a steady glow. The contact 12 is connected to the socket 1 and a current flows from the electrical system of the towing vehicle to the fifth contact pole A5 and further to the left position lamp 5 via the external supply circuit 2. The first relay 13 keeps the internal supply circuit 11 broken , since a current flows through the state circuit 7, from the battery of the towing vehicle via the thirteenth contact pole A13, which current keeps the first relay 13 in a drawn, open position.
    The second relay 14 keeps the internal supply circuit 11 closed, since a current flows through the holding circuit 8, from the electrical system of the towing vehicle via the fifth contact pole A5, which current keeps the second relay 14 in a closed position.
    The capacitor 9 is charged by the current flowing through the holding circuit 8.
    Thus, no current flows through the internal supply circuit 11, since the internal supply circuit 11 is broken at the first relay 13.
    Figure 2 shows the left position lamp 5, according to Figure 1, after a transition to the second state, where the active status of the left position lamp 5 has been maintained at the transition.
    The contact 12 has here been disconnected from the socket 1, so that no current flows anymore from the electrical system of the towing vehicle to the contact poles A1-A14 of the socket 1. Since no current flows through the state circuit 7 anymore, the first relay 13 has been closed and a current now flows from the voltage source 3, through the internal supply circuit 11, to the left position lamp 5 and supplies the left position lamp 5 with current. In addition, the voltage source 3 supplies current to the pouring circuit 8. During the transition from the first state to the second state, the capacitor 9 has kept the second relay 14 drawn, so that the internal supply circuit 11 has been kept closed during the entire transition. .
    The current which now flows through the holding circuit 8 from the voltage source 3 keeps the second relay 14 drawn, so that the internal supply circuit 11 is closed.
    This means that the active status of the left position lamp 5 has been maintained at the transition from the first state to the second state.
    Figure 3 shows the left position lamp 5 in the first state, where the status of the left position lamp 5 is inactive, i.e. it is off. The contact 12 is connected to the socket 1, but no current flows from the electrical system of the towing vehicle to the fifth contact pole A5 and the left position lamp 5.
    The first relay 13 keeps the internal supply circuit 11 broken, since a current flows through the state circuit 7, from the battery of the towing vehicle via the thirteenth contact pole A13, which current keeps the first relay 13 in a drawn, open position.
    The second relay 14 keeps the internal supply circuit 11 broken, since no current flows through the holding circuit 8 from the electric vehicle of the towing vehicle when the status of the left position lamp 5 is inactive, which keeps the second relay 14 in an open position. 10 15 20 25 30 14 The capacitor 9 is not charged because no current flows through the holding circuit 8.
    Figure 4 shows the left position lamp 5, according to Figure 3, after a transition to the second state, where the inactive status of the left position lamp 5 has been maintained at the transition.
    The contact 12 has here been disconnected from the socket 1 so that no current flows from the towing vehicle's electrical system to the trailer's contact poles A1-A14. Since no current flows through the state circuit 7 anymore, the first relay 13 has been closed.
    The second relay 14 still keeps the internal supply circuit 11 broken, in the second state, since the capacitor 9 has not been charged in the first state, it can also not generate any voltage across the second relay 14 at the transition from the first state to the second state. the condition.
    This means that the inactive status of the left position lamp 5 has been maintained at the transition from the first state to the second state.
    Figure 5 shows the left turn signal lamp 6 in the first state, where the status of the left turn signal lamp 6 is active, i.e. it flashes with a flashing light. The contact 12 is connected to the socket 1 and a pulsating current flows from the electrical system of the towing vehicle to the second contact pole A2 and further to the left turn signal lamp 6 via the external supply circuit 2 '. The first relay 13 holds the internal supply circuit 11 'broken, since a current flows through the state circuit 7, from the battery of the towing vehicle via the thirteenth contact pole A13, which current holds the first relay 13 in a drawn, open position. .
    The second relay 14 'keeps the internal supply circuit 11' closed, since a pulsating current flows through the holding circuit 8 ', from the electrical vehicle of the towing vehicle via the second contact pole A2, which pulsating current together with the capacitor 9' holds the second relay 14 'in one pull, closed mode. The capacitor 9 'is charged by the pulsating current and ensures that the second relay 14' is also drawn between the current pulses. Between the current pulses, the capacitor 9 'maintains a voltage across the second relay 14' so that the second relay 14 'cannot break the internal supply circuit 11' between the current pulses. It is therefore necessary that the capacitor 9 'is adapted to be able to maintain a voltage across the second relay 14' for a period of time which is at least equal to the time which is between two subsequent current pulses.
    Thus, no current flows through the internal supply circuit 11 ', since it is broken at the first relay 13.
    Figure 6 shows the left turn signal lamp 6 according to figure 5 after a transition to the second state, where the active status of the left turn signal lamp 6 has been maintained at the transition.
    The contact 12 has here been connected from the socket 1 so that no current anymore flows from the electrical system of the towing vehicle to the contact poles A1-A14 of the socket 1 of the socket 1. Since no current flows through the state circuit 7 anymore, the first relay 13 has been closed and a current now flows from the voltage source 3, through the internal supply circuit 11 ', to the left turn signal lamp 6 and supplies the turn signal lamp 6 with a pulsating current. The pulsating current is provided by a turn signal relay 16, which is arranged in the internal supply circuit 11 '. The current after the turn signal relay 16 is pulsating to the holding circuit 8 '.
    During the transition from the first state to the second state, the capacitor 9 'has kept the second relay 14' drawn, so that the internal supply circuit 11 'has been kept closed during the entire transition.
    The pulsating current, which now flows through the holding circuit 8 'from the voltage source 3 via the internal supply circuit 11' together with the capacitor 9 ', keeps the second relay 14' drawn, so that the internal supply circuit 11 'is closed.
    This means that the active status of the left turn signal lamp 6 has been maintained at the transition from the first state to the second state.
    Figure 7 shows the left position lamp 5 with an active status in the first state and the left turn signal lamp 6 with an active status in the first state. The contact 12 is connected to the socket 1. A current flows from the electrical system of the towing vehicle to the fifth contact pole A5 and further to the left position lamp 5 via the external supply circuit 2 and a pulsating current flows from the electrical system of the towing vehicle to the other. contact pole A2 and on to the left turn signal lamp 6 via the external supply circuit 2 '.
    The first relay 13 keeps the internal supply circuit 11, 11 'broken, since a current flows through the state circuit 7 from the battery of the towing vehicle via the thirteenth contact pole A13, which current keeps the first relay 13 in a drawn, open position.
    The second relay 14 keeps the internal supply circuit 11 of the left position lamp 5 closed, since a current flows through the holding circuit 8 from the electrical system of the towing vehicle via the fifth contact pole, which current keeps the second relay 14 in a drawn, closed position.
    The second relay 14 'keeps the internal supply circuit 11' closed to the left turn signal lamp 6, since a pulsating current flows through the holding circuit 8 'from the towing vehicle electrical system via the second contact pole A2, which pulsating current together with the capacitor 9' holds the second relay 14 'in a pulled, closed position. The capacitor 9 'is charged by the pulsating current and ensures that the second relay 14' is also drawn between the current pulses. Between the current pulses, the capacitor 9 'maintains a voltage across the second relay 14' so that the second relay 14 'cannot break the internal supply circuit 11' between the current pulses. It is therefore necessary that the capacitor 9 'is adapted to be able to maintain a voltage across the second relay 14' for a period of time which is at least equal to the time which is between two subsequent current pulses. 10 15 20 25 30 18 The capacitor 9, 9 'is charged by the current flowing through the holding circuit 8, 8'.
    Thus, no current flows through the internal supply circuit 11, 11 ', since the internal supply circuit 11, 11' is broken at the first relay 13.
    Figure 8 shows the left position lamp 5 and the left turn signal lamp 6, according to Figure 7, after a transition to the second state, where the active statuses of the left position lamp 5 and the left turn signal lamp 6 have been maintained at the transition from the first state to the second state.
    The contact 12 has here been disconnected from the socket 1 so that no current anymore flows from the towing vehicle's electrical system to the socket's contact poles Al-A14. Since no current flows through the state circuit 7 anymore, the first relay 13 has been closed.
    A current now flows from the voltage source 3, through the internal supply circuit 11, to the left position lamp 5 and supplies the left position lamp 5 with current.
    In addition, a current now flows from the voltage source 3, through the internal supply circuit 11 ', to the left turn signal lamp 6 and supplies the turn signal lamp 6 with a pulsating current. The pulsating current is provided by the turn signal relay 16, which is arranged in the internal supply circuit 11 '. The current after the turn signal relay 16 is pulsating to the pouring circuit 8 '. During the transition from the first state to the second state, the capacitor 9, 9 'has kept the second relay 14, 14' drawn, so that the internal supply circuit 11 'has been kept closed during the entire transition.
    The current, which now flows through the holding circuit 8 from the voltage source 3, keeps the second relay drawn, so that the internal supply circuit 11 is closed.
    The pulsating current, which now flows through the holding circuit 8 'from the voltage source 3 via the internal supply circuit 11' together with the capacitor 9 ', keeps the second relay 14' drawn, so that the internal supply circuit 11 'is closed.
    This means that the active states of the left position lamp 5 and the left turn signal lamp 6 have been maintained during the transition from the first state to the second state.
    Figure 9 shows the left position lamp 5 with an inactive status in the first state and the left turn signal lamp 6 with an active status in the first state.
    The first relay 13 breaks the internal supply circuit 11, 11 'in the first state.
    The second relay 14 keeps the internal supply circuit 11 broken, to the left position lamp 5, since no current flows through the holding circuit 8 from the electric vehicle of the towing vehicle when the status of the left position lamp 5 is inactive, which keeps the second relay 14 in an open position. 10 15 20 25 30 20 The capacitor 9 is not charged because no current flows through the holding circuit 8.
    The second relay 14 'keeps the internal supply circuit 11' closed to the left turn signal lamp 6, since a pulsating current flows through the holding circuit 8 ', from the electrical system of the towing vehicle via the second contact pole A2, which pulsating current together with the capacitor 9' holds the second relay 14 'in a pulled, closed position. The capacitor 9 'is charged by the pulsating current and ensures that the second relay 14' is also drawn between the current pulses. Between the current pulses, the capacitor 9 'maintains a voltage across the second relay 14' so that the second relay 14 'cannot break the internal supply circuit 11' between the current pulses. It is therefore necessary that the capacitor 9 'is adapted to be able to maintain a voltage across the second relay 14' over a period of time which is at least equal to the time which is between two subsequent current pulses.
    The capacitor 9 'is charged by the current flowing through the holding circuit 8'.
    No current flows through the second voltage circuit 11, 11 ', since the internal supply circuit 11, 11' is broken at the first relay 13.
    Figure 10 shows the left position lamp 5 and the left turn signal lamp 6, according to Figure 9, after a transition to the second state, where the current status of the lamps 5, 6 from the first state has been maintained at the transition from the first state to the second state.
    The first relay 13 closes the internal supply circuit 11, 11 'in the second state.
    The second relay 14, which senses that the left position lamp 5 is inactive, is open and breaks the internal supply circuit 11.
    The second relay 14 ', which senses that the left turn signal lamp 6 is active, is pulled and pours the internal supply circuit 11' closed.
    The invention has been described on the basis of a specific embodiment. It is understood, however, that other embodiments and variants are possible within the scope of the appended claims. It will be appreciated that the invention is applicable to all types of light signals of a trailer, where the light signals have a flashing light or a solid light. Furthermore, other alternative voltage sources may be possible, such as fuel cells.
    权利要求:
    Claims (8)
    [1]
    Device for controlling a plurality of light signal devices (5, 6) of a trailer, which light signal devices (5, 6) can assume a first state, where they are powered by an electrical system of a towing vehicle, and a second state, where they are supplied with power of a voltage source (3) of the trailer, where each light signal device (5, 6) can have either an active status or an inactive status, characterized in that the device comprises a control circuit for each light signal device, each control circuit being arranged to partially sense the light signal device (5). , 6) status in the first state, partly maintaining the status of the light signal device when the light signal device (5, 6) goes from the first state to the second state.
    [2]
    Device according to claim 1, characterized in that the trailer comprises an external supply circuit (2, 2 '), which in the first state connects the respective light signal devices (5, 6) to the electrical system of the towing vehicle and that the control circuit comprises an internal supply circuit (11, 11'). ), which in the second state connects the light signal device (5, 6) to the voltage source (3) of the trailer when the light signal devices (5, 6) have an active status.
    [3]
    Device according to claim 2, characterized in that the control circuit comprises a first relay (13), which keeps the internal supply circuit (11, 11 ') broken in the first state and which keeps the internal supply circuit (11, 11') closed therein. second condition. 10 15 20 25 30 23
    [4]
    Device according to claim 3, characterized in that the control circuit comprises a state circuit (7), which state circuit (7) comprises the first relay (13).
    [5]
    Device according to one of Claims 3 to 4, characterized in that the control circuit comprises a second relay (14, 14 ') which keeps the internal supply circuit (11, 11') closed when the light signal device (5, 6) is active and holds the internal supply circuit (11, 11 ') is broken when the light signal device (5, 6) is inactive.
    [6]
    Device according to claim 5, characterized in that the control circuit comprises a holding circuit (8, 8 '), which holding circuit (8, 8') comprises the second relay (14, 14 '),
    [7]
    Device according to claim 6, characterized in that the holding circuit (8, 8 ') comprises a capacitor (9, 9'), which is arranged in parallel with the second relay (14, 14 ').
    [8]
    Device according to one of Claims 2 to 7, characterized in that the internal supply circuit (11 ') comprises a turn signal relay (16), the internal supply circuit (11') connecting to a light signal device (6) which flashes when it is active. .
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2046976A|1935-06-19|1936-07-07|Carl P Sorensen|Lighting system for vehicles|
    EP1018453A3|1999-01-10|2003-10-22|Uwe Steffen|Security device for vehicle trailer|
    DE20314352U1|2003-09-06|2004-02-26|Preuß, Constanze-Christine|Emergency flasher and lighting unit for vehicle trailers, has separate battery and controls with multi-pin connection to trailer power input|
    US7463136B2|2005-04-13|2008-12-09|Ungerman Don L|Trailer safety system|
    US7601007B1|2007-08-13|2009-10-13|Randall Pogue|Emergency apparatus for lighting an abandoned trailer|
    法律状态:
    2018-01-02| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1000559A|SE534839C2|2010-05-25|2010-05-25|Device for trailers|SE1000559A| SE534839C2|2010-05-25|2010-05-25|Device for trailers|
    EP20110167150| EP2390138B1|2010-05-25|2011-05-23|Device for a trailer|
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