KR20140063011A

KR20140063011A - A lifting device for high bay lighting

Info

Publication number: KR20140063011A
Application number: KR1020120129825A
Authority: KR
Inventors: 이동원
Original assignee: 이동원
Priority date: 2012-11-15
Filing date: 2012-11-15
Publication date: 2014-05-27

Abstract

The present invention relates to an elevator for a lamp in a high place and, more specifically, to an elevator for a lamp capable of installing and maintaining a lamp in a high place such as the ceiling of a factory, a gym, and a hotel lobby. By the elevator for a lamp in a high place according to the present invention, no failure occurs caused by a power supply device of an elevator as usual because an enclosure, an electrical switch, and a motor are prepared inside a fixed body of the elevator installed in a high place, and no separate power supply device is needed for the elevator. Also, the elevator can be formed by a simple electrical circuit without using expensive components such as a wireless receiver.

Description

[0001] The present invention relates to a lifting device for high bay lighting,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-altitude lighting elevator, and more particularly, to a high-lighting elevator for installing and maintaining a lamp installed at a high place such as a ceiling of a factory, a gymnasium, a streetlight, .

Generally, periodic cleaning work is needed because foreign substances such as fine dust accumulate on the surface of illumination lamps and equipment as time passes.

However, lighting fixtures (hereinafter referred to as "high-altitude lights") installed at high places such as ceilings, gymnasiums, streetlights and hotel lobbies of factories should be operated using ladder or crane for high-altitude work. As a result of this, there is a risk of the occurrence of safety accidents such as equipment user fees due to the use of expensive equipment, and the fall of a high-skilled worker.

To solve the above problems, a high-altitude lighting elevator has been proposed. In the recently filed patent applications KR 10-2012-0032425, KR 10-2011-0138039, and 10-2003-0064262, a high-altitude lighting-type elevator equipped with a wireless receiver is presented, which has the following problems.

First, a power supply device for driving a wireless receiver and a controller for performing a received command is required, and a power supply device usually uses a finned electrolytic capacitor having a finite lifetime.

Secondly, it is expensive because it uses expensive components such as a wireless receiver, an encoder (to slow down the moving speed just before the light reaches the rising limit position)

Thirdly, the wireless receiver and the controller operate normally in a standby mode, so there is power consumption.

KR 10-2012-0032425 KR 10-2011-0138039 KR 10-2006-0087561 KR 10-2005-0033417 KR 10-2003-0064262

The present invention has been proposed in order to solve the above-mentioned problems of the present invention. An apparatus, an electric switch and a motor are present in a fixed body of an elevator installed at a high place and a separate power source device is not required for an elevator, And to provide a high-altitude lighting elevator in which a failure by the apparatus does not occur. Further, it is intended to provide a high-altitude lighting elevator which can be implemented with a simple electric circuit without using expensive parts such as a wireless receiver and which is cost competitive.

To this end, the lamp-type elevator according to the present invention comprises: a control panel (100) of an elevator for controlling upward and downward movement of the elevator; A DC power supply for supplying power necessary for vertical movement of the elevator; And an operation switch for instructing up and down movement of the elevator, and is installed in a place where the operator can easily operate the elevator and maintenance.

The elevator moving body 300 equipped with an illumination lamp is connected to an elevator fixing body 200 fixed to a ceiling by a wire W. The fixing body 200 includes a motor reducer, Fixtures; A lift motor (DC motor) for moving the moving body up and down; An upper limit switch (LS_UP) for shutting off the elevating motor current when it detects that the moving object has reached the highest rising position; And a bypass diode (D_UP) connecting both terminals of the upper limit switch (LS_UP).

At this time, the direction of the diode D_UP is set in a direction of shutting off when the upper limit switch LS_UP is operated and the elevating motor current is interrupted, and a separate power source such as an AC-DC converter or a DC-DC converter The transducer is not included within the fixture 200 for elevator control purposes; The control panel 100 and the fixing unit 200 are characterized in that the DC power supply line is connected to the two wires PC1 and PC2.

At this time, the lower body limit switch (LS_DN) 200 blocks the current supplied to the motor when it detects that the moving body has arrived at the lowest position. And a diode D_DN for connecting both ends of the lower limit switch LS_DN and the diode D_DN is interrupted when the lower limit switch LS_DN is operated and the motor current is interrupted Direction is preferable.

When the operator operates the operation switch to raise the movable body 300 and the upper limit switch LS_UP is operated to physically lock the movable body 300 to the fixed body 100, A safety limit switch (LS_LK), a diode (D_LK) connecting both ends of a safety limit switch (LS_LK), a release limit A diode D_UL for connecting both ends of a switch LS_UL and a release limit switch LS_UL, and a lift power switch LS_UL2 for controlling the power of the lift motor. The safety limit switch LS_LK, The limit switch and limit switch (LS_UL) are connected in series. Each diode connected with each limit switch is installed in the direction that the limit switch interrupts when the current of the limit motor is cut off. It is preferable that when the disengagement limit switch LS_UL is shut off, the elevation power switch LS_UL2 is turned on and the elevation power switch LS_UL2 is provided in series with the elevation motor power supply line.

And a deceleration time point detection switch LS_SPD for decelerating a deceleration time point, wherein the deceleration time point detection switch LS_SPD is a common terminal for deceleration time point detection switch LS_SPD, (NC) terminal and a normally closed terminal (NC) are connected in series to a power supply line of the elevating motor, and a normally closed (NC) terminal and a normally open (NO) terminal of the deceleration time detecting switch (LS_SPD) (R_SPD).

The DC power source installed in the elevator control panel 100 is preferably composed of a triac (TRIAC), a rectifying circuit 11 and a smoothing capacitor C11 for controlling the phase of an AC power source.

The operation switch SW11 for instructing the vertical movement of the elevator has two toggle switches composed of the common terminal C, the first contact A and the second contact B [the first toggle switch and the second toggle switch A positive voltage VP of the DC power source is connected to the first contact S1A of the first toggle switch and the second contact S2B of the second toggle switch, The negative voltage VM is connected to the second contact point S1B of the first toggle switch and the first contact point S2A of the second toggle switch and by operating the operation switch SW11 once, It is also preferable that the switches operate in conjunction with each other.

The wire W further includes a length indicator, and the fixing body 200 further includes a length sensing switch for sensing the length indicator, and the state of the length sensing switch is connected to the operation panel 100 Further comprising a wire for transmitting data.

According to the above elevated illumination lamp elevator according to the present invention, since there is an apparatus, an electric switch and a motor in the elevator fixed body installed at a high place and a separate power source device is not required for the elevator, Does not occur.

In addition, it does not use expensive parts such as a wireless receiver, an encoder, and the like, so that it is cost competitive.

Since there is no standby mode to consume electricity, power consumption is reduced.

Fig. Fig. 7 is a conceptual view showing the inside of a fixed body and the moving body according to the present invention.
Fig. And is a conceptual circuit diagram of the present invention.
3. Fig. 8 is a circuit state diagram when the moving body according to the present invention starts to descend at the highest rising position. Fig.
FIG. FIG. 3 is a circuit diagram of a moving object according to the present invention when the moving object is descending.
Figure 5. Fig. 5 is a circuit state diagram when the moving object according to the present invention reaches the lowest position of the descent. Fig.
6. Fig. 8 is a circuit state diagram when the moving body according to the present invention starts to rise at the lowest falling position. Fig.
7. Fig. 3 is a circuit state diagram of a moving object according to the present invention when it is ascending; Fig.
Figure 8. FIG. 3 is a conceptual circuit diagram for adjusting the DC power supply voltage according to the present invention. FIG.
Figure 9. Fig. 8 is a conceptual view of the apparatus when the latching according to the present invention is in the release position.
10. Fig. 8 is a conceptual view of the apparatus when the latching according to the present invention is in a safe position.
11. Fig. 3 is a circuit state diagram when starting to unlock a moving object according to the present invention; Fig.
12. Fig. 5 is another circuit state diagram in which the moving object according to the present invention starts to descend. Fig.
13. Fig. 5 is another circuit state diagram showing the moving body according to the present invention starting to rise. Fig.
FIG. Fig. 2 is a circuit state diagram showing a state in which the moving object according to the present invention is started to be locked.
15. 1 is a circuit diagram with a speed reducer according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same components are denoted by the same reference numerals as possible in the accompanying drawings. Also, the terms and words used herein should not be construed as being limited to ordinary or dictionary meanings and should be construed in a meaning and a concept consistent with the technical idea of the present invention. The detailed description of the air structure and the function which are considered to be unnecessarily blurred from the gist of the present invention will be omitted.

Hereinafter, the configuration of the first embodiment will be described using Figs. 1 to 3. Fig.

A high-altitude lighting elevator control panel 100 (hereinafter referred to as "control panel") suitable for the present invention is installed in a place where a worker can easily carry out elevator operation and maintenance, and is provided with a DC power source for supplying power necessary for up- An operation switch SW11 for instructing up and down movement, and the DC power supply terminal voltage polarity switching section 77. [

It is preferable that the elevator moving body 300 (hereinafter referred to as a "moving body") equipped with a lighting lamp and the elevator fixing body 200 (hereinafter referred to as "fixed body") fixed to the ceiling are connected by a wire W Do.

The fixing body 200 includes a motor reducer GB, a bobbin BB, a wire guide G1 and a mechanism G2, and a lifting motor M10 for moving the moving body 300 up and down. An upper limit switch (LS_UP) for shutting off a current supplied to the motor when it detects that the moving object (300) arrives at the highest rising position; And a bypass diode (D_UP) for connecting both ends of the upper limit switch (LS_UP).

Here, the direction of the bypass diode D_UP is established in such a direction that the upper limit switch LS_UP operates when the motor current is interrupted by the upper limit switch LS_UP, and a separate power conversion such as an AC-DC converter or a DC- The control panel 100 and the fixing body 200 do not include two DC power supply lines PC1 and PC2 (hereinafter, referred to as "power line") for controlling the elevator, Quot;).

A lower limit switch LS_DN for blocking the lift motor current when the movable body 200 senses arrival of the moving body 200 at the lowest position; And a bypass diode (D_DN) connecting both terminals of the lower limit switch (LS_DN). Here, the lower limit switch LS_DN is preferably operated as a moving object position indicator S_DN provided on the wire W.

At this time, the direction of the diode D_DN is preferably set in a direction of shutting off when the lower limit switch LS_DN operates and the lift motor current is cut off.

The operation switch SW11 for instructing the rise and fall of the operation switch SW1 has two toggle switches including a common terminal C, a first contact A and a second contact B (first toggle switch and second toggle switch) . It is preferable that the two toggle switches operate simultaneously by operating the operation switch SW11 once.

The positive voltage VP of the DC power supply (hereinafter referred to as "positive voltage") is connected to the second contact point S1B of the first toggle switch and the first contact point S2A of the second toggle switch, The negative voltage VM of the power supply (hereinafter referred to as "negative voltage") is preferably connected to the first contact S1A of the first toggle switch and the second contact S2B of the second toggle switch.

The common terminal S1C of the first toggle switch, the power line PC2 and the lower limit switch LS_DN, the elevation motor M10, the upper limit switch LS_UP, the power line PC1, Terminal S2C are connected in series in this order.

Hereinafter, the operation switch SW11 performs the function of the DC power supply terminal voltage polarity conversion unit 77 using FIG. 3, in detail.

3, when the common terminal C of each toggle switch is short-circuited to the second contact B of each toggle switch, the positive voltage VP is connected to the supply line PC2 and the negative voltage VM is (PC1) = (VM), (PC2) = (VP)] connected to the power line PC1.

Conversely, when the common terminal C of each toggle switch is shorted to the first contact A of each toggle switch, the positive voltage VP of the DC power source is connected to the power source line PC1, Is connected to the power line PC2 (i.e., (PC1) = (VP), (PC2) = (VM)).

That is, when the operation switch SW11 is operated, the polarity of the DC power source is changed and supplied to the elevation motor M10, so that the conveyance body 300 is instructed to move up and down.

Hereinafter, a method of operating the first embodiment will be described with reference to FIGS. 1 to 7. FIG.

Hereinafter, a case where the lamp is started to be lowered for maintenance such as cleaning at an installation position will be described in detail with reference to FIG.

3 is an electric circuit immediately after the moving body 300 is set at the highest rising position and the operation switch SW11 is set to fall. At this time, the upper limit switch LS_UP is opened (blocked) and the lower limit switch LS_DN is connected (conducted).

The positive voltage VP flows through the second contact S1B of the first toggle switch, the first common terminal S1C, and the power line PC2 in order, ).

The positive voltage VP supplied to the fixed body 200 through the power line PC2 is connected to the elevation motor M10 through the lower limit switch LS_DN because the lower limit switch LS_DN is connected To the power supply terminal.

Since the upper limit switch LS_UP is open (cut off), the electricity passing through the lifting motor M10 passes through the bypass diode D_UP connected to the upper limit switch LS_UP in parallel with the power source line PC1, And flows to the negative voltage (VM) terminal through the second common terminal (S2C) and the second contact (S2B) of the second toggle switch.

Then, the elevating motor M10 starts rotating, and the moving body 300 is lowered.

That is, the downward instruction is issued when the positive voltage VP is supplied to the power supply line PC2 and the negative voltage VM is supplied to the power supply line PC1. Actually, the descent of the moving body 300 is the upper limit switch LS_UP (Bypassing diode D_UP), the movable body 300 is lowered and the lower limit switch LS_DN is opened (blocked) (the bypass diode D_DN is also blocked And thus the elevation motor M10 is stopped).

In summary, when the operator operates the operation switch SW11 to descend, the mobile unit 300 always starts to descend, and automatically stops when it reaches the lowest position.

4 is a state in which the movable body 300 is between the rising uppermost position and the lowered lowest position and the upper limit switch LS_UP and the lower limit switch LS_DN are connected The state in which both the instruction or the downward instruction can be performed), and the operation switch SW11 is set to the falling state. At this time, the toggle switch in which the operation switch SW11 is operated in three stages (that is, the toggle switch in which the common terminal C is not connected to any of the first contact A and the second contact B) , It is natural that the moving body 300 can be stopped at any position desired by the operator.

5 shows a circuit in which the operation switch SW11 is set to be in the downward state and the conveyance body 300 reaches the falling minimum position and the lower limit switch LS_DN is opened (the bypass diode connected in parallel is also cut off) .

Hereinafter, the case where maintenance starts such as cleaning the illumination lamp and then starts rising will be described in detail with reference to FIGS. 6 and 7. FIG.

6 is an electric circuit immediately after the operation switch SW11 is set to be raised when the moving body 300 is at the lowest falling position. (That is, when the lower limit switch LS_DN is opened (blocked) and the upper limit switch LS_UP is connected (conducted)

In this case, the positive voltage VP passes through the first contact S2A, the second common terminal S2C, and the power line PC1 of the second toggle switch in order, ).

The positive voltage VP supplied to the fixed body 200 through the power line PC1 is supplied to the elevation motor M10 through the upper limit switch LS_UP because the upper limit switch LS_UP is short- To the power supply terminal.

Since the lower limit switch LS_DN is opened, the electricity passing through the lifting motor M10 passes through the bypass diode D_DN connected to the lower limit switch LS_DN in parallel, Passes through the first common terminal S1C of the first toggle switch and the first contact S1A in this order and flows to the negative voltage VM.

That is, The instruction is issued when the positive voltage VP is supplied to the power supply line PC1 while the negative voltage VM is supplied to the power supply line PC2 and the rise of the moving body 300 is actually the state of the lower limit switch LS_DN (The electric current flows through the bypass diode D_DN), and the movable body 300 is lifted up and the upper limit switch LS_UP is opened (blocked) (the parallel diode D_UP is blocked as well) M10) is stopped).

In summary, when the operator operates the operation switch SW11 up, the conveying body 300 always starts to rise and automatically stops when reaching the highest rise position.

7 shows a state in which the moving body 300 is between the rising uppermost position and the lowered lowest position and the upper limit switch LS_UP and the lower limit switch LS_DN are connected (conducted) The state in which both the instruction or the downward instruction can be performed), and the operation switch SW11 is set to the rising state. At this time, the toggle switch in which the operation switch SW11 is operated in three stages (that is, the toggle switch in which the common terminal C is not connected to any of the first contact A and the second contact B) , It is natural that the moving body 300 can be stopped at any position desired by the operator.

The first embodiment of the present invention has been described in detail above.

In this embodiment, the bypass diode (LS_UP) and the anode of the diode (LS_DN) are both connected to the motor power supply terminal. However, the present invention can be implemented by changing the cathode to be connected to the motor power supply terminal and changing the switch contact Of course.

Further, the rotation speed of the DC motor changes in proportion to the magnitude of the DC voltage (or current) supplied to the motor. 8, when a part of the AC voltage is rectified to the rectifying circuit 11 and smoothed by the smoothing capacitor C11 using the element 10 for controlling the ac voltage phase such as triac, It is natural that the speed of the moving body 300 can be controlled.

The second embodiment of the present invention relates to a lock device that physically locks the moving body 300 and the elevator fixing body 200 fixed to the ceiling.

Figures 9 and 10 conceptually illustrate the components and operation of the locking device.

Fig. 9 shows the case where the latching chain 72 is in the release position. That is, it is a conceptual diagram showing a state in which the moving body 300 can move up and down because the latching chain 72 in the elevator fixing body 200 and the retaining groove 71 in the moving body 300 are not engaged. At this time, the release limit switch LS_UL is opened, the lift power switch LS_UL2 is connected to the limit switch LS_UL in reverse, and the safety limit switch LS_LK is connected.

Fig. 10 shows the case where the latching chain 72 is in the safety position. That is, the movable body 300 is locked to the fixed body 200 by engaging the engaging recess 72 in the elevator fixing body 200 with the engaging recess 71 in the moving body 300. At this time, the safety limit switch LS_LK is opened, the release limit switch LS_UL is connected (conduction), and the lift power switch LS_UL2 is opened (shut off) reversely to the release limit switch LS_UL.

Figure 11 is an example of a preferred circuit diagram for driving the locking device.

First, a description will be given of a circuit configuration. The power supply line PC2, the release limit switch LS_UL, the lock motor M88, the safety limit switch LS_LK, the power supply switch LS_UP2, PC1). The power supply line PC2 on one side, the elevation power supply switch LS_UL2, the lower limit switch LS_UL, the elevation motor M88, the upper limit switch LS_LK and the other power supply line PC1 are serially connected in order . Each limit switch directly connected to each motor has a bypass diode connected in parallel, with an anode on each motor side.

Here, the release limit switch LS_UL and the elevation power switch LS_UL2 operate in opposite states, and the upper limit switch LS_LK and the power source switch LS_UP2 operate in opposite states. That is, when one switch is opened (blocked), the switch operating in the opposite state connects (conducts).

11 (locked state) is used to perform maintenance such as cleaning the illumination lamp at the installation position The start of descent will be described in detail.

First, the work is started by the operator operating the operation switch 11 to supply the positive voltage VP to one power supply line PC2 and the negative voltage VM to the other power supply line PC1 .

Since the latching chain 72 is coupled to the latching groove 71 in the initial state of the circuit, the lift-up power switch LS_UL2, which operates in the opposite state since the release limit switch LS_UL is connected So that electricity is not supplied to the elevation motor circuit 27. [ [At this time, the safety limit switch (LS_LK) is opened (blocked)

The movable limit switch LS_UP is opened and the movable limit switch LS_UP2 operating in the opposite state is connected to the movable limit motor circuit 26 so that electricity is supplied to the fixed- . [At this time, the lower limit switch (LS_DN)

In the lock motor circuit 26, the current flows in turn through the release limit switch LS_UK, the lock motor M88, and the bypass diode D_LK of the safety limit switch LS_LK. As a result, the lock chain motor M88 starts to rotate and starts the movement of the latch from the safety position to the release position.

The circuit of Fig. 12 is immediately after the latching movement from the safety position to the release position (immediately before the descent).

Since the release limit switch LS_UL is opened (blocked), no electric power is supplied to the brushless motor circuit 26 any more. That is, the lock-up motor is stopped. Then, the elevation power switch LS_UL2, which operates in the opposite state to the release limit switch LS_UL, is connected (conducted) and the power supply to the elevation motor circuit 27 is started.

In the elevation motor circuit 26, the current flows in the order of the elevation power switch LS_UL2, the lower limit switch LS_DN, the elevation motor M11 and the bypass diode D_UP of the upper limit switch LS_UP. As a result, the elevating motor M11 starts rotating, and the moving body 300 starts to move downward from the highest position. When the moving body 300 reaches the lowest position, the lower limit position indicator S_DN opens the lower limit switch, so that the moving body 300 automatically stops at the lowest position.

Hereinafter, the elevation of the elevator after the maintenance of the illumination lamp is completed will be described with reference to Figs. 13 and 14. Fig.

The circuit of Fig. 13 is a circuit immediately before the moving body 300 starts to rise at the lowest position (right before rise).

The rising operation is started by the operator operating the operation switch 11 to supply the positive voltage VM to one power supply line PC2 and the negative voltage VP to the other power supply line PC1 .

The lift limit switch S_UL is opened so that the lift power switch LS_UL2 operating in the opposite state is connected to the lift motor circuit 27 are supplied with electricity. [At this time, the safety limit switch (LS_UL) is opened (blocked)

The movable limit switch LS_UP is connected to the movable limit switch LS_UP and the movable limit switch LS_UP2 operating in the opposite state is opened so that electricity is supplied to the fixed- Not supplied.

In the elevation motor circuit 26, the current flows in the order of the upper limit switch LS_UP, the elevation motor M11 and the bypass diode D_DN of the lower limit switch LS_DN. As a result, the elevating motor M11 starts rotating and the moving body 300 starts to rise.

When the movable body 300 reaches the rising uppermost position, the upper limit switch is opened (blocked) and the moving body 300 automatically stops at the rising uppermost position.

14 is a circuit immediately before starting the locking operation of the moving object 300 (just before the lock is started).

The upper limit switch LS_UP is opened so that power is not supplied to the elevator motor circuit 27 and the power source switch LS_UP2 is connected ), So that power is supplied to the lock motor circuit.

In the lock motor circuit 26, the current flows in the order of the safety limit switch LS_LK, the lock motor M11 and the bypass diode D_UL of the release limit switch LS_UL. As a result, the elevating motor M88 starts to rotate and starts to move to the safety position at the release position of the engagement block 72. [ Then, when the latching chain 72 reaches the safety position, the safety limit switch LS_LK is opened (blocked), so that the latching chain 72 automatically stops at the safety position.

The second embodiment of the present invention has been described in detail above.

In the present embodiment, it has been explained that the braking chain is driven by the motor. However, it is natural that the braking chain can be driven by an exercise machine that is operated by an electric power such as a solenoid.

In addition, although it has been described that two motors are driven one by one in order, it is natural that if the principle of the present embodiment is extended, a plurality of motors can be driven one by one in order.

According to the circuits shown in Figs. 11 to 14, it is natural that the upper limit switch LS_UP is connected to the normally closed terminal, and the fixed resistor power source value LS_UP2 is connected to the normally open terminal to constitute one limit switch. It goes without saying that the release limit switch LS_UL may be connected to the normally closed terminal and the lift power switch LS_UL2 may be connected to the normally open terminal to constitute one limit switch.

The third embodiment of the present invention relates to a method of decelerating a speed when the elevator moving body 300 moves up and down.

More specifically, the present invention relates to a method of decelerating a moving speed of the moving body 300 when the moving body 300 approaches the fixed body 200, thereby performing a low speed coupling between the moving body and the fixed body.

Hereinafter, a sensor and a sensor operation required for the deceleration circuit will be described with reference to FIG.

First, in the deceleration upon rise, 1) when the upper part of the moving object is sensed, the sensor operation object may be a moving object, and the sensor may be composed of a deceleration limit switch LS_SPD sensing a part of the moving object. At this time, the deceleration limit switch LS_SPD is preferably installed so as to keep the sensing state from the time when the moving object senses the nearness to the completion of the engagement.

And 2) when a predetermined object S_UP (hereinafter referred to as a "position indicator") attached to the wire W is used, the sensor workpiece becomes the position indicator S_UP, A decelerating switch S_SPDa having a locking function such as a toggle switch is preferably used so that the motor is set to a low speed when it passes above and the motor is set to a constant speed when passing downward. At this time, it is preferable that the position indicator S_UP is installed close to the moving object.

The deceleration circuit will be described below using Fig.

When the movable body 300 rises at a constant speed, electric power supplied to the elevation motor M11 is supplied through the common terminal of the deceleration switch LS_SPD and the normally closed terminal.

When the deceleration switch LS_SPD senses that the moving body is close (that is, when the common terminal is connected to the normally open terminal), electricity supplied to the elevation motor M11 is supplied to the normal open terminal of the deceleration switch LS_SPD, And is supplied through a deceleration resistor R_SPD provided between the closed terminals. Then, a voltage drop occurs across the deceleration resistor R_SPD, so that the DC voltage supplied to the elevation motor M11 is lowered and the moving body 300 decelerates.

And another way to slow down. The wire W is provided with a length indicator (that is, a sensor work installed on the wire). The length indicator is sensed by a length sensing switch, and the state of the length sensing switch is wired to the operation panel 100, There is a method of performing the acceleration / deceleration.

At this time, the length indicator may be attached to the wire W by a predetermined length, or may be attached to each wire W near the lower limit and the lower limit.

Preferably, the length sensing switch is a toggle switch in which the state is changed every time the length indicator is detected (that is, the state is changed while alternating between the open (blocking) state and the connection (conduction) state).

1, the contact point EL_CNT is a contact for supplying AC power to an illumination lamp attached to a moving object.

While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the embodiments of the present invention disclosed in the present specification and drawings are merely illustrative of the technical contents of the present invention and are intended to illustrate specific examples of the present invention in order to facilitate understanding of the present invention, and are not intended to limit the scope of the present invention.

11 rectifier circuit
21 Up-and-down motor circuit
22 Locking motor circuit
26 Up-and-down motor circuit
28 Deceleration resistance and lock-up motors
71 Engagement groove 72 Engagement
77 DC Power Output Terminal Polarity Switching Unit
100 elevator control panel 200 elevator fixed body
300 elevator mobile body
M1, M10, M11 Lifting motor M88 Clamp motor
LS_DN Lower limit switch SW11 Operation switch
LS_UP Upper limit switch PC1, PC2 Power cable
LS_LK safety limit switch
LS_ULA release limit switch
LS_ULB Lift power switch LS_SPD, LS_SPDa
D_UP, D_DN, D_LK, D_ULA Diodes

Claims

A lighting or similar elevator for vertically moving a lighting lamp installed in a ceiling,

An elevator control panel (100) for controlling up and down movement of an elevator
A DC power supply for supplying power necessary for vertical movement of the elevator;
And an operation switch for instructing the elevator to move up and down
A worker is installed in a place where elevator operation and maintenance are easy,

An elevator moving body (300) equipped with an illuminating lamp
An elevator fixing body 200 fixed to the ceiling by a wire W,

The fixture 200 may include a motor reducer, a bobbin, and a wire guide;
A lift motor (DC motor) for moving the moving body up and down;
An upper limit switch (LS_UP) for shutting off the elevating motor current when it detects that the moving object has reached the highest rising position;
And a bypass diode (D_UP) connecting both terminals of the upper limit switch (LS_UP)

The direction of the diode D_UP is set in such a direction that when the upper limit switch LS_UP operates and the lift motor current is cut off,
A separate power conversion device, such as an AC-DC converter or a DC-DC converter, is not included within the fixture 200 for elevator control purposes;
Wherein the DC power supply line of the control panel (100) and the fixture (200) are connected to two wires (PC1) (PC2).

The method according to claim 1,

The lower body limit switch (LS_DN) 200 blocks the current supplied to the motor when it detects that the moving body has reached the lowest position.
And a diode D_DN for connecting both terminals of the lower limit switch LS_DN,

The direction of the diode (D_DN) is provided in a direction to block the motor current when the lower limit switch (LS_DN) operates.

The method according to claim 1,

A locking device for physically locking the movable body 300 to the fixed body 100 when the movable body 300 rises and the upper limit switch LS_UP is operated by operating the operation switch by the operator And more

The lock device includes a lock motor (DC motor) for providing a physical movement, a safety limit switch LS_LK, a diode D_LK for connecting both ends of a safety limit switch LS_LK, a release limit switch LS_UL, A diode D_UL for connecting both ends of the lifting power switch LS_UL and an elevating power switch LS_UL2 for interrupting the power supply of the elevating motor

The safety limit switch (LS_LK), the lock motor and the release limit switch (LS_UL) are connected in series. Each diode connected in series with each limit switch is installed in such a direction that each limit switch cuts off the lock motor current ;
When the disengagement limit switch LS_UL is shut off, the elevation power switch LS_UL2 is turned on,
Wherein the elevation power switch (LS_UL2) is installed in series with the elevation motor power supply line.

The method according to claim 1,

A deceleration resistor R_SPD for decelerating the moving speed of the moving body 300 and a deceleration time detecting switch LS_SPD for detecting a deceleration time point;

The common terminal (COM) of the deceleration time detecting switch LS_SPD and the normally closed terminal NC are connected in series to the power supply line of the elevating motor, and the normally closed (NC) terminal of the deceleration time detecting switch LS_SPD And a normally open (NO) terminal is connected to the deceleration resistor (R_SPD).

The method according to claim 1,

The DC power supply installed in the elevator control panel (100) is characterized by comprising a triac (TRIAC), a rectifying circuit (11) and a smoothing capacitor (C11) for controlling the phase of the AC power.

The method according to claim 1,
The operation switch SW11 for instructing the elevation movement of the elevator has two toggle switches each composed of the common terminal C, the first contact A and the second contact B [the first toggle switch and the second toggle switch ];

The negative voltage VP of the DC power source is connected to the first contact point S1A of the first toggle switch and the second contact point S2B of the second toggle switch, The second contact (S1B) of the first toggle switch and the first contact (S2A) of the second toggle switch,

Characterized in that the two toggle switches are interlocked by operating the operation switch (SW11) once.

The method according to claim 1,
The wire (W) has a length indicator,
The fixture 200 further includes a length sensing switch for sensing the length indicator
And an electric wire for transmitting the state of the length sensing switch to the operation panel (100).