KR100946839B1 - Battery relay of dual magnetic structure and starter apparatus - Google Patents

Battery relay of dual magnetic structure and starter apparatus Download PDF

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Publication number
KR100946839B1
KR100946839B1 KR1020080051695A KR20080051695A KR100946839B1 KR 100946839 B1 KR100946839 B1 KR 100946839B1 KR 1020080051695 A KR1020080051695 A KR 1020080051695A KR 20080051695 A KR20080051695 A KR 20080051695A KR 100946839 B1 KR100946839 B1 KR 100946839B1
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South Korea
Prior art keywords
excitation
battery
relay
stage
vehicle
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KR1020080051695A
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Korean (ko)
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KR20090125533A (en
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박상복
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기아자동차주식회사
현대자동차주식회사
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Priority to KR1020080051695A priority Critical patent/KR100946839B1/en
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Abstract

The present invention relates to a battery relay and a starter of the dual excitation structure, characterized in that the additional excitation coil end to the battery relay to supplement the excitation force only at the moment of starting the vehicle. The present invention provides a battery for supplying power to a vehicle load, a start switch that is switched on at the moment of starting the vehicle, and additionally generates additional excitation force only at the moment of starting the vehicle when the start switch is turned on. By a short circuit, it comprises a battery relay of a double excitation structure for supplying power to the battery to the starting motor. The dual excitation battery relay includes: an excitation coil stage for generating an excitation force while maintaining a battery switch on; an additional excitation coil stage for generating an excitation force only when the vehicle start switch is on; And a relay stage shorted by the excitation force generated at the excitation coil stage and the additional excitation coil stage.
Vehicle, engine, battery, start up, relay, coil, magnetic field

Description

Battery relay and starter apparatus of dual excitation structure

The present invention relates to a battery relay and a starter of the dual excitation structure.

In general, in order to prevent excessive current from flowing to various electrical components, a fuse that cuts off a circuit instantaneously when a predetermined value or more flows and a relay that is operated when an input value reaches a predetermined value to open and close another circuit are provided. It is provided. In the vehicle, the switching is performed by using the relay to protect the contact point of the switch during the switching of the large current, so that the operation of the electrical appliance can be controlled using the small current.

1 is a diagram showing a connection diagram of a starting device by a battery relay.

On large buses, including high-speed buses, the large amount of electrical loads used can result in battery discharge due to leakage currents that can occur when the vehicle is not running. In order to prevent this phenomenon, the battery relay 20 is used to turn off the circuits at both ends of the battery relay by turning the battery switch 60 off when the vehicle is stopped (not running). Shut off the energized path to the vehicle load.

Therefore, the battery relay 20 should not only have a large enough contact capacity to withstand electrical loads under normal operating conditions, such as when a large amount of current flows, but also ensure durability. Due to the addition, the load of the battery relay 20 is increasing.

However, when a large current (up to 1000 A) flows temporarily into the starter motor at the time of engine start, such as in a cold winter, the supply voltage of the battery supplied to the excitation coil stage 21 of the battery relay 20 is increased. The deterioration occurs, which causes the excitation force of the excitation coil stage 21 of the battery relay to be reduced, so that the relay stage 22, which is the contact portion of the battery relay, is stuck several times, and then the contact arc (ARC) is caused by a falling chattering phenomenon. There is a problem that occurs. This problem of the contact arc causes the problem of premature damage and fusion of the contact.

If the coil winding number of the excitation coil end 21 of the battery relay is increased or the coil thickness is increased to reduce the excitation force caused by the temporary drop of the battery voltage, the heat generated by the increase of the excitation current The problem becomes serious and problems such as shortening of endurance life occur.

The present invention is a method for complementing the excitation force of the excitation coil end of the battery relay that causes a drop in the battery supply voltage when the vehicle starts.

The present invention provides a battery for supplying power to a vehicle load, a start switch that is switched on at the moment of starting the vehicle, and additionally generates additional excitation force only at the moment of starting the vehicle when the start switch is turned on. By a short circuit, it comprises a battery relay of a double excitation structure for supplying power to the battery to the starting motor.

The dual excitation battery relay includes: an excitation coil stage for generating an excitation force while maintaining a battery switch on; an additional excitation coil stage for generating an excitation force only when the vehicle start switch is on; And a relay stage shorted by the excitation force generated at the excitation coil stage and the additional excitation coil stage.

The additional excitation coil stage is characterized in that it has a coil of the number of turns that can generate an excitation force having a magnitude equal to the amount of excitation force generated in the excitation coil stage when the vehicle is started.

The present invention can compensate for the decrease in the excitation force of the excitation coil end of the battery relay when the vehicle is started in winter as a double excitation structure, it can have an effect of preventing a drop in the battery supply voltage.

Hereinafter, a detailed description of embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the reference numerals to the components of the drawings it should be noted that the same reference numerals as possible even if displayed on different drawings.

2 is a diagram illustrating a connection diagram of a starter by a battery relay having a double excitation structure according to an exemplary embodiment of the present invention.

The present invention is implemented as a battery relay (80) of the dual excitation structure to generate the complementary excitation force by the structure of the existing battery relay 20 to the excitation coil end 21 and the additional excitation coil end (23). In one embodiment, the additional excitation coil stage 23 which is operated when the battery voltage decreases temporarily at the start of the engine is additionally provided in addition to the existing excitation coil stage 21.

First, the operation of each relay when the vehicle is driven will be described.

When the vehicle starts to be driven, the starter switch 70 is momentarily 'on'. In addition, the battery switch 60 becomes 'on', and the magnetic field is excited at the excitation coil stage by applying the current of the battery 10 to the excitation coil stage 21 in the battery relay 80 having a double excitation structure. Due to the excitation force, the relay stage 22 in the battery relay 80 of the double excitation structure is shorted.

Therefore, due to the short circuit of the double-excitation structure of the battery relay 80, the current of the battery is provided to the excitation coil end 41 and the relay end 42 of the starter sub relay 40, the sub-start relay 40 ) Is short-circuited. In addition, the current of the battery, which has passed the short circuit of the double-excitation structure, flows to the relay stage of the starter relay.

The current output from the shorted sub-start relay 40 excites the excitation coil stage 31 of the start relay 30 to short-circuit the start relay 30. As a result, the current is short-circuited start relay 30. ), The starter motor 50 is reached as starting power.

If the state of the additional excitation coil stage 23 of the present invention has no structure, the excitation force at the excitation coil stage occurs as described in the prior art when the vehicle is started in cold weather. Therefore, the contact portion of the battery relay has a problem that the contact arc (ARC) is generated by the chattering phenomenon (chattering) falling after several times.

However, if the output terminal of the sub-start relay 40 in parallel with the start relay 30 as in the present invention and has a structure for connecting the additional excitation coil 23 of the battery relay 80 of the double excitation structure, the vehicle start When the momentary time is applied, the start switch 70 is turned on, the start sub relay 40 is short-circuited, and the output current thereof flows to the additional excitation coil stage 23, whereby the additional excitation coil stage 23 is applied. By generating an excitation force in, the excitation force at the excitation coil end 21 can be compensated for.

That is, the excitation force that is reduced in the excitation coil stage 21 as the current amount decreases due to the battery voltage decreases at the moment of starting, and supplements the insufficient excitation force by operating the additional excitation coil stage 23 only for a short moment of the starting moment. .

Accordingly, the dual-excited battery relay 80 of the present invention includes an excitation coil end 21, an additional excitation coil end 23, and a relay end 22. The excitation coil end 21 may include a battery switch. The excitation force is generated while it is kept on, and the additional excitation coil stage 23 generates the excitation force only at the moment when the vehicle start switch is turned on, and the relay stage 22 has the excitation coil stage and the additional force. The short circuit occurs due to the excitation force generated by the excitation coil stage.

On the other hand, Figure 3 shows a structure of a general battery relay having no additional excitation coil, the magnetic force (excitation force) of the general relay is proportional to the number of windings and the magnitude of the current flowing through the winding.

B = μNI (B: magnetic flux density, μ: permeability, N: number of turns, I: current through the winding)

If the voltage drop of the battery at start-up is lowered to 1/2 of the normal voltage, ideally, the current in the coil of the excitation coil of the battery relay will be reduced by 1/2 times, and the magnetic flux density is also reduced by half. Therefore, in the present invention, when the start switch is activated, the additional excitation coil stage is activated by this signal to compensate the magnetic flux density lowered to about half level by the battery voltage drop to the normal level.

FIG. 4 is a diagram illustrating a battery relay having a double excitation structure according to an exemplary embodiment of the present invention. In addition to an existing excitation coil stage, the excitation coil stage may further include an additional excitation coil stage connected to a starting sub relay. At the moment, the excitation force can be generated at the additional excitation coil stage by the signal of the start switch.

As described above, the excitation force generated in the additional excitation coil stage is large enough to compensate for the reduced excitation force in the main excitation coil at the time of starting the vehicle. That is, the additional excitation coil stage has a coil having a number of windings that has a size sufficient to generate an excitation force having a magnitude equivalent to an excitation force reduction occurring in the excitation coil stage at the moment when the vehicle starts.

On the other hand, when the vehicle is driven after the vehicle is started, the starter motor is stopped and only the vehicle load is used. At this time, since the start switch is maintained 'off', the starter sub relay maintains the open state instead of a short circuit. Since only the main excitation coil is operated, the calorific value of the excitation coil can be kept to a minimum.

On the other hand, when starting, as shown in Fig. 6, since the start switch maintains 'on', the start sub relay maintains a short circuit, which causes both the excitation coil end and the additional excitation coil end to operate, resulting in a short circuit, which causes a different load and starting motor. You can see that it is supplying power.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention is not to be determined by the embodiments described above, but will be apparent in the claims as well as equivalent scope.

1 is a diagram showing a connection diagram of a starting device by a battery relay.

2 is a diagram illustrating a connection diagram of a starter by a battery relay having a double excitation structure according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a structure of a general battery relay having no additional excitation coil.

4 is a diagram illustrating a structure of a battery relay of a double excitation structure according to an embodiment of the present invention.

5 is a view showing a power supply when using only a vehicle load according to an embodiment of the present invention.

6 is a diagram illustrating a state in which power is supplied when a vehicle starts according to an exemplary embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: battery 20: battery relay

30: start relay 40: start sub relay

50: starter motor 80: dual excitation battery relay

Claims (5)

  1. An excitation coil stage for generating an excitation force while the battery is switched on;
    An additional excitation coil stage which generates an excitation force only at the moment when the vehicle start switch is turned on;
    Relay stage short-circuited by the excitation force generated in the excitation coil end and the additional excitation coil end
    Battery relay of dual excitation structure comprising a.
  2. According to claim 1, wherein the additional excitation coil stage, characterized in that it has a coil of the number of turns that can generate an excitation force having a magnitude equal to the reduction in the excitation force generated in the excitation coil stage when the vehicle is started. Dual relay battery relay.
  3. A battery for powering a vehicle load;
    A start switch which is switched on at the moment the vehicle is started;
    Dual excitation battery relay supplying power to the battery to the starter motor by additionally generating and shortening additional excitation force only at the moment when the start switch is turned on.
    Starting device by a battery relay of a double excitation structure comprising a.
  4. The battery relay of claim 3, wherein
    An excitation coil stage for generating an excitation force while the battery is switched on;
    An additional excitation coil stage which generates an excitation force only at the moment when the vehicle start switch is turned on;
    Relay stage short-circuited by the excitation force generated in the excitation coil end and the additional excitation coil end
    Starting device by a battery relay of a double excitation structure comprising a.
  5. [5] The coil of claim 4, wherein the additional excitation coil stage has a coil having a number of turns capable of generating an excitation force having a magnitude equal to an excitation force generated in the excitation coil stage at the moment when the vehicle is started. Starting device by battery relay of double excitation structure.
KR1020080051695A 2008-06-02 2008-06-02 Battery relay of dual magnetic structure and starter apparatus KR100946839B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080051695A KR100946839B1 (en) 2008-06-02 2008-06-02 Battery relay of dual magnetic structure and starter apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080051695A KR100946839B1 (en) 2008-06-02 2008-06-02 Battery relay of dual magnetic structure and starter apparatus

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KR20090125533A KR20090125533A (en) 2009-12-07
KR100946839B1 true KR100946839B1 (en) 2010-03-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017124567B4 (en) * 2017-10-20 2019-07-25 sonnen GmbH Battery system, local power supply and disconnector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877166A (en) 1981-11-02 1983-05-10 Norio Akamatsu Self motor equipped with electromagnetic coil
JPS6027781A (en) 1983-07-25 1985-02-12 Mitsubishi Electric Corp Multifunctional starter
JPH02175350A (en) * 1988-12-27 1990-07-06 Isuzu Motors Ltd Electric power source for vehicle
JPH0853037A (en) * 1994-08-11 1996-02-27 Hino Motors Ltd Power supply circuit for automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877166A (en) 1981-11-02 1983-05-10 Norio Akamatsu Self motor equipped with electromagnetic coil
JPS6027781A (en) 1983-07-25 1985-02-12 Mitsubishi Electric Corp Multifunctional starter
JPH02175350A (en) * 1988-12-27 1990-07-06 Isuzu Motors Ltd Electric power source for vehicle
JPH0853037A (en) * 1994-08-11 1996-02-27 Hino Motors Ltd Power supply circuit for automobile

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