JPH07282852A - Failure display device for battery water supply device - Google Patents

Abstract

PURPOSE:To provide a failure display device for a water supply controller capable of effectively utilizing the space in an instrument panel and reducing the number of part items and the cost without requiring the installation space of a check connector and a warning lamp in the instrument panel. CONSTITUTION:A failure display LED 20 is provided on a circuit board 19 in a controller case 18. An ventilation opening 18a is arranged at a position where the LED 20 can be confirmed from the outside. When an ignition switch is turned on, the mode is switched to the failure diagnostic mode by a water supply controller 1 for failure diagnosis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery water replenishing device for automatically supplying battery fluid to a battery of an electric vehicle such as an electric vehicle or a forklift, and more specifically, a failure display device for displaying an abnormality or a failure of a water replenishment controller. Regarding

[0002]

2. Description of the Related Art Conventionally, for example, as a water replenishing device for automatically supplying battery liquid to a battery of an electric vehicle, when a water replenishing switch is turned on, a water replenishing controller activates a water replenishing pump when the battery liquid level is below a predetermined level, and Some are designed to stop the rehydration pump when the surface reaches a certain level. As such a failure display device for a water replenishment controller, there is conventionally one in which the entire configuration is schematically shown in FIG. In FIG. 4, reference numeral 30 denotes a water replenishment controller that controls the operation of the water replenishment pump of the conventional water replenishment apparatus, and a check connector 31 and an instrument panel 32 are connected to the controller 30. An abnormality warning lamp 33 is attached.

In the above-mentioned conventional failure display device, when a service person or the like operates the check connector 31 during the inspection to enter the failure diagnosis mode, the abnormality warning lamp 32 has a blinking interval set according to the type of abnormality. It blinks, and it is configured to confirm the abnormality of the rehydration controller.

[0004]

However, in the above-mentioned conventional apparatus, especially when a plurality of stand-alone type controllers are mixed, it is necessary to provide a check connector and an abnormality warning lamp for each controller. There is a problem that a large installation space for the warning lamp is required in the panel, the installation space for the check connector is expanded, the number of parts is increased, and the cost is increased.
Moreover, since a plurality of warning lamps are provided in the instrument panel, there is a problem that it is difficult to check each lamp.

The present invention has been made in view of the above-mentioned conventional problems, and it is possible to eliminate the space for disposing the warning lamp in the instrument panel together with the check connector, thereby reducing the number of parts and cost, and the space in the instrument panel. It is an object of the present invention to provide a failure display device for a battery water replenishing device that can effectively utilize the above.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a failure display device for a battery water replenishing device for automatically supplying battery fluid to a battery of an electric vehicle, and is provided in a controller case for accommodating a water replenishing controller of the water replenishing device. A fault display LED that blinks according to the type of abnormality of the water replenishment controller is provided on the circuit board, and the ventilation opening of the controller case is arranged at a position where the LED can be confirmed from the outside. It is characterized in that a mode switching means is provided which becomes a failure diagnosis mode when the switch is turned on.

[0007]

According to the failure display device of the present invention, when the ignition switch is turned on, the mode switching means causes a failure diagnosis mode, and if there is an abnormality in the rehydration controller, the failure display LED blinks, and the blinking is formed on the controller case. Confirmed from the outside through the opening. In this case, since the failure display LED is arranged on the circuit board in the case for the water replenishment controller so that it can be confirmed from the opening of the case, the space for disposing the display lamp in the instrument panel can be eliminated, and the ignition can be eliminated. Since the mode is switched by turning on the switch, a check connector is not required, so that the cost can be reduced and the space in the instrument panel can be effectively used. Since the water replenishment control operation of the water replenishment controller is performed with the ignition switch off, the on signal of the ignition switch can be used as a signal for switching to the failure diagnosis mode.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 are views for explaining a failure display device of an automatic water replenishing device according to an embodiment of the present invention.
Is a block diagram showing the configuration of the device of the present embodiment, FIG. 2 is a schematic cross-sectional view of the controller case portion of the failure display device,
FIG. 3 is a signal waveform diagram for explaining an example of a failure display method by the failure display device.

In these figures, 1 is an actuator (water replenishment actuator) based on a signal from the sensor 2.
3 and the display device 4 is a water replenishment controller (battery water replenishment device).
A charge controller 5 for controlling a charging device that charges a battery (not shown) is connected. Power is supplied to the water replenishment controller 1 from the charging connector 6 and the sub battery 7.
Further, a forced charge start switch 9 for starting charging regardless of the signal from the sensor 2 is connected.

The sensor 2 includes a battery liquid level sensor (A) 10 for detecting that the liquid level of the battery is at a high level or higher, and a battery liquid level for detecting that the liquid level is at a low level or lower. A sensor (B) 11 and a tank liquid level sensor 12 for detecting that the liquid level of the refill water tank is below a predetermined level are provided. The actuator 3 includes a replenishing water pump 13 that replenishes the battery with battery fluid, and an air blow pump 14 that removes H ₂ gas and the like generated in the liquid tank of the battery. Further, the display device 4 includes a warning lamp 15 and a warning buzzer 16 which warn that the liquid level of the battery liquid is below a low level, and an incomplete charging lamp which indicates that the state of charge of the battery is insufficient. 17 and 17. The warning buzzer 16 also has a function of warning that the liquid level of the replenishing water tank is below a predetermined level, and gives a different tone color when the battery liquid is warned.

Here, the water replenishment controller 1 has a built-in failure diagnosis mode, and when the ignition key is turned on, the mode is switched to this failure diagnosis mode.

As shown in FIG. 2, a circuit board 19 on which a control circuit is assembled is installed in the control case 18 of the water replenishment controller 1, and a failure display LED ( Failure display device) 20
Is attached. When the LED 20 is switched to the failure diagnosis mode, the LED 20 blinks according to the type of abnormality. Further, a ventilation opening 18a is formed on the upper surface of the control case 18, and the opening 18a is arranged at a position where the LED 20 can be confirmed from the outside of the control case 18 in the direction of the broken line in the drawing.

Next, a method of displaying a failure of the apparatus of the above embodiment will be described. Generally, water replenishment work of an automobile is performed with the ignition key turned off. Therefore, the failure diagnosis by the controller 1 is performed by the controller 1 (mode switching means) in the failure diagnosis mode when the ignition key is turned on. . Then, in the failure display device configured as described above, as a result of the failure diagnosis,
If there is an abnormality, the failure display LED 20 is turned on, for example, as shown in FIG. FIG. 3 shows an example of a lighting state of the LED 20. In this example, the LED 20 is lit three times in succession to display an error code “3”,
This is repeated at regular time intervals.

As described above, in the above embodiment, the LED 2 is used.
Since the display of 0 is arranged in the control case 18 so that it can be confirmed through the opening 18a, the abnormality warning lamp 33 in the instrument panel 32, which is necessary for the above-mentioned conventional apparatus, is provided.
The arrangement space can be eliminated and the space in the instrument panel 32 can be effectively used. Further, since the mode is switched to the failure diagnosis mode by the ON signal of the ignition key, the check connector 31 which has been necessary in the past can be dispensed with, and the number of parts and the cost can be reduced.

In the above embodiment, an example in which the opening 18a is formed on the upper surface of the case 18 has been described, but the opening 18a may be provided on the side surface of the case 18.

[0016]

As described above, according to the failure display device of the battery water replenishing device according to the present invention, the failure display LED is provided on the circuit board in the controller case of the water replenishing device, and the above-mentioned ventilation opening of the controller case is used. Since the LED can be checked, there is an effect that the installation space for the indicator lamp in the instrument panel is unnecessary and the space in the instrument panel can be effectively used, and the number of parts and cost can be reduced by eliminating the check connector. Is effective.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a battery water replenishing device including a failure display device according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a water replenishment controller including the failure display device according to the above embodiment.

FIG. 3 is a signal waveform diagram for explaining an example of a failure display method of the failure display device according to the above embodiment.

FIG. 4 is a configuration diagram schematically showing a conventional failure display device.

[Explanation of symbols]

1 Water replenishment controller (mode switching means, battery water replenishing device) 18 Controller case 18a Ventilation opening 19 Circuit board 20 Fault display LED

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumio Nishikawa 2-1-1 Taoyuan, Ikeda City, Osaka Daihatsu Industry Co., Ltd.

Claims (1)

[Claims] 1. A failure display device for a battery water replenishing device for automatically supplying battery fluid to a battery of an electric traveling vehicle,
A failure display LED that blinks according to the type of abnormality of the replenishment controller on a circuit board arranged in a controller case that accommodates the replenishment controller of the replenishment apparatus.
And the ventilation opening of the controller case
A failure display device for a battery water refilling device, characterized in that the ED is arranged at a position that can be confirmed from the outside, and mode switching means is provided that enters a failure diagnosis mode when the ignition switch is turned on.