JPS5882894A - Controller of motor for driving oil pump in lubricating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a motor for driving a refueling pump in a refueling system.

Recently, at a gas station, a so-called ROA terminal (
A terminal device (hereinafter simply referred to as a terminal) is connected to automatically process slips of refueling information such as the amount of refueling. The terminal device is usually installed in the office of the gas station, which is far away from the installation location of the refueling machine, so the transmitter that generates the number of flow pulses according to the amount of refueling inside the refueling machine and the terminal device are used to transmit flow rate pulses. connected by electric wires. A power line is also connected to the refueling machine to supply power to a drive motor for an internally installed refueling pump.

By the way, while the terminal is processing the refueling information slip after refueling, the refueling machine is normally licked to disable the next refueling operation. When releasing the four-way switch by releasing the pump drive cable and the rice pipe, the power supply line to the temporary power supply is laid through the terminal equipment's storage area Fr or its vicinity. A method of opening and closing this power supply circuit on the terminal side is currently being developed.

However, if the refueling machine is electrical or electronic refueling value (quantity or /
If this display is equipped with a display (energizing amount) and power is supplied via the pump drive motor's energizing circuit, the terminal unit should turn on the pump motor of the refueling machine (energizing it). If the circuit is opened), the power supply to the display will also be cut off, causing the display to disappear.

In order to solve this problem, it is possible to attach an electric wire for pasting the dump motor from the terminal to the refueling machine, but it is not recommended to insert this electric wire into the protective pipe of the existing power supply line of the lump motor. In many cases, it is impossible, and it is time-consuming and expensive to recover the heavy lkm, and it is also unsightly as it leaves traces of the trenches dug and backfilled.

The present invention was proposed in view of the above points, and utilizes a transmitter energizing circuit that connects a terminal device and a flow rate pulse transmitter of a refueling machine, and a switch 0 that opens and closes this energizing circuit on the terminal device side. 112, on the other hand, the refueling machine side IC has a switch D that responds to the operation of the switch 0, and a switch 1 that opens and closes the energizing circuit of the refueling pump drive motor closer to the motor than the connection point with the display. the switch 1 is opened and closed depending on the simultaneous presence or absence of the same operating line of each switch of the switch system responsive to the selective arrangement of the switch p and the refueling nozzle to the refueling position and the non-refueling position; The locking and unlocking of the pump drive motor can be controlled on the terminal side.

The illustrated embodiment will be described in detail below.

In Figure 1, l is the housing of the ground-based refueling aircraft;
2 is the oil pumping pipe from the underground oil storage tank (VIJ omitted),
3 is the oil supply lubricant, 4 is the drive layer for the pump 3, 6 is the flow rate needle, 6 is the oil supply hose - γ is the oil supply nozzle, 8 is the flow rate W
The flow rate that generates the enemy flow pulse that is Nz to the measured oil amount of f5, the pulse transmitter 09 is the nozzle case, the nozzle detection switch is connected to the nozzle case 9, and the nozzle 7 is connected to the nozzle case 9. Contact by removing!
Mu (2nd Wi Part II) Ka*l! Sarel e 10)! l
l [llllI% l l C indicator, 12 is the display drive circuit, L is the cable that connects the flow rate pulse generator II8 of refueling @ 1 and the 1a vehicle, T-I is the Mine-Yu 40 power supply cable,
Both will be described later.

No. 281! shows a variant example of an electric circuit, the mouse is on the refueling machine side,
POB indicates the terminal side. In Figure 2 %#
The same reference symbol as in 1IIK indicates the component to be Nz.

The cable 2 connecting the flow rate pulse 8 and the terminal side consists of 3) mL vs Z()% Ly, V s G 1
1 power supply terminal %P is a signal terminal, and a flow pulse is sent to a predetermined circuit (not shown) in the terminal device via this terminal r.

0 is a switch for lock control of the motor 4 (for enabling or disabling the motor 4), and is inserted and connected to one side (Lv in the figure) of the energizing uLvsLa (Lv in the figure) of the transmitter 118F. As described later, when the contact KO of switch 0 is opened, the power supply to the transmitter 8 is cut off, and the motor 4 is locked (unenergized), and when the switch 0 is closed, the upper distribution is released. On the oil supply 411M side, D is a switch that responds to the opening/closing operation of the switch 0, and is composed of an energizing line of the transmitter 8. Note that d is an overvoltage protection diode connected across both ends of the coil RD.

The power supply cable L/ to the lamp drive motor 4 is composed of three energizing wires in the illustrated example, and is connected to an appropriate power source through the terminal device installation field FE or its vicinity. The display drive circuit 12 is connected to the energizing line L/ at a contact point J on the fueling machine side.

1 is a power supply ms switch which opens and closes the energizing wire Il/ by the motor 4 from the above-mentioned connection point J, and a contact that opens and closes according to the energization of the electromagnetic coil 11 and this coil! Consists of 1.

In the embodiment shown in Fig. 3, the contact point for turning on the nozzle detection switch! The second contact point of the response switch! D and the coil RB of the motor power supply control switch □ switch 1 are connected in series, and this series circuit 8 is in contact with the energizing switch S of the motor 1! It is connected on the power supply side from the insertion point of 1.

Reference numeral 1 denotes a detector for the removal state of the nozzle IIk, which is used to detect the completion of refueling work on the end*machine side and control the opening/closing of the motor lettuce control switch 0, as will be described later.

In the above configuration, all switches are turned on during refueling.
The contact X~ICD is closed, but the refueling machine side IC
When the refueling work is completed, set the nozzle to nozzle +-x'9.
When EIlt (multiply), the contact X of the nozzle switch is opened, and the contact of switch 1 is opened! 1 hesitates and Mo# stops. The detector 1 detects a reduction or disappearance of the energizing current due to the stoppage of the printer 4 and generates a refueling completion detection signal, and this signal causes the thousand-tarok control switch 0 to be activated.
Contact point! Open 0. When the contact KQ is opened, the supply of energizing power to the transmitter 8 is cut off on the refueling machine side, and the coil RD of the response switch D is deenergized. Since p is opened, relay RB of switch B is not energized regardless of whether switch A is opened or closed (the refueling nozzle is unlatched from the nozzle case), and therefore contact xB is never closed, so motor 4 is not connected. to be incapacitated (-to be hit)
.

When the processing of the refueling information by the terminal is completed, the contact
O is closed. As a result, the transmitter 8 is energized and becomes operational, and the coil RD of the response switch D is also energized and the contact ICD is closed (the motor is unlocked). In this state, if you remove the nozzle from the nozzle case, the nozzle detection switch will turn on! Since the system is closed,
The series circuit 8 is activated and the fill RB of switch B is energized, making it a contact! B is closed and the motor 4 is energized.

FIG. 3 shows another embodiment, in which the same reference symbols as in FIGS. 1 and 2 indicate corresponding elements.

In the second gl, the switch ON and p and the coil l of switch 1 are connected in series, but in Fig. 3, the switch and p are connected in parallel, and this parallel circuit is connected in series with the coil of switch 1. This circuit 8' is connected to the energizing circuit L/ of 4. In Fig. 2, the switch p is open when the coil persimmon is de-energized and closed when it is energized, and when the switch is turned on, it is open. When the nozzle is hung on the nozzle case, it opens and when it is removed, it closes. Also, switch 1 is open when the coil R is de-energized, and closed when it is energized, but in Fig. 3, switch 2 is the coil R). When RD is de-energized, it is closed and when it is energized, it is open.The width switch is configured so that it closes when the nozzle is hung on the nozzle case and opens when it is removed.Switch 1 is closed and energized when coil IB is consumed. Sometimes it's open.

Therefore, in No. 311, during refueling, the contact between the switch and p! M and xB are open, contacts of switches 1 and 0! 1 and! a
is closed, but when the nozzle is returned (hanged) to the nozzle case after refueling, the contact point becomes closed, and the coil nB is energized to open the contact point KB and stop the motor number. motor 4
Detector stops! is detected and the switch O contact point! When 0 is opened, coil RD is deenergized and contact ILD is closed. After that, even if the nozzle is removed from the nozzle case and the contact opens, the coil blade 1 will remain in contact! As long as D is closed, the contact will not be deenergized! B remains open and the motor 4 is maintained engaged.

When the processing of the supplied information by the terminal device is completed, the contact of switch a is pressed to release the above-mentioned state of the motor number. 0
Close. As a result, the transmitter 8 is energized and becomes operational, and the coil RD of the switch p is also energized and the contact KD is opened. When the nozzle is removed from the nozzle case in this state 111, the contact I of switch 5 is also opened, so the coil RB of switch 1 is deenergized and the contact is closed. Close B and motor 4
energize.

Although the two embodiments have been described above, it goes without saying that the present invention is not limited to these embodiments. For example, Switchtim~D is I! which has a mechanical contact point. However, it is also possible to use other suitable elements having a switching function, such as a non-contact switching circuit using a toten V star. Therefore, in this WSI document, a switch means a member or element having a switching function, and "opening/closing" means not only mechanical opening/closing but also electrical non-conduction and conduction.

Further, in the illustrated embodiment, the refueling machine is a ground-mounted type, but the present invention can also be applied to other types of refueling machines, such as ceiling-hanging type refueling machines. In this case, the refueling nozzle (refueling hose) is lowered for refueling (position 11) and the refueling hose is raised to a certain height above the ground (position III), respectively, when the nozzle in the illustrated example is removed from the nozzle nurse. It can be helpful to consider this as a comparison between the state and the state I applied to the nozzle nurse. In this case, the refueling hose rises,
The control switch would perform the function of the illustrated nozzle switch.

As described above, according to the present invention, the flow rate pulse transmission of the refueling machine
By using the existing line connecting the terminal and the terminal, a simple configuration can be used that does not affect the display operation of the display of the refueling machine.
Control of the lamp drive motor can be performed on the terminal side.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a refueling machine according to an embodiment of the present invention, and FIG. 2I1. 3rd wI is a diagram showing different examples of electric circuits used in the embodiment of FIG. 1; 2...Oil pumping pipe, 3...Oil supply pump, 4@・
・Motor for driving oil supply pump, etc...Flow rate needle, 8・Φ・Flow rate pulse transmitter, 9＠＠＠・Nozzle case, 10...-control SS, ・11...
-Display-112...Display drive circuit. Patent applicant: Tominaga Seisakusho Co., Ltd.

Claims (1)

[Claims] A fuel supply pump, a fuel pump driving volume meter, a pulse generator that transmits a flow rate pulse corresponding to the measured oil amount, and a power source coexisting with the peak and the fuel supply to display at least the measured oil amount. a refueling machine having an indicator for refueling and a switch actuated in response to selective positioning of a refueling nozzle in a refueling position and a non-refueling position; In the refueling device, the flow rate pulse is sent to the boss TIN*- to process refueling information, and the LSM* machine includes an energizing circuit for the flow rate pulse transmitter, 1IWs. 1. On the oil supply S side, a switch D responds to the operation of the switch O and opens and closes the motor energizing circuit at a side closer to the motor than a connection point of the indicator to the motor energizing circuit. A switch 1 is provided and the simultaneous presence of the same operating state of each of said switches and D--even control device.