Ultra-thin film lighting switch controller for clean room

Abstract

The utility model discloses an ultra-thin film lighting switch controller for a clean room, which relates to the field of a clean room lighting system and comprises a film switch and a power supply control circuit, the power supply control circuit is connected between the film switch and a load, and the film switch controls the power supply state of the load through the power supply control circuit. The membrane switch comprises a membrane switch surface patch and a display module arranged on the front surface of the membrane switch surface patch, and the display module is used for displaying the on-off state of the membrane switch. The thin film lighting switch controller can display the on-off state and has a high safety coefficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to clean room lighting system field, especially a clean room uses ultra -thin type membrane lighting switch controller. BACKGROUND

[0002] At present, the switch on the market is mostly the AC 220V power supply's hinged plate type concealed switch and the capacitive touch switch, and these traditional switches have certain limitations when applied in high-level clean rooms: (1) the traditional switch cannot clearly show the switch state, and its thickness and appearance degree cannot satisfy the application demand in the clean room. (2) AC 220V belongs to dangerous voltage, is easy to cause electric shock event to take place, and there is a security risk. INVENTION CONTENT

[0003] The applicant proposes a clean room uses ultra -thin type membrane lighting switch controller for the above problems and technical demand.

[0004] The technical scheme of the utility model is as follows:

[0005] A clean room uses ultra -thin type membrane lighting switch controller, including membrane switch and power control circuit, the power control circuit is connected between membrane switch and load, the membrane switch controls the power supply state of load through power control circuit;

[0006] The membrane switch includes membrane switch face paste and the display module set up in the positive side of membrane switch face paste, and the display module is used to show the switch state of membrane switch.

[0007] Further technical scheme is that the membrane switch face paste is further provided with button SB1, and the display module includes indicator light HG and indicator light Hr;The power control circuit includes relay KA1, AC contactor KM, thermal relay KH and single-path bistable relay module, wherein,

[0008] The open end of the single-path bistable relay module is connected with one end of the relay KA1 coil, the other end of the relay KA1 coil is connected with the negative output end of the DC power supply and the negative power supply end of the single-path bistable relay module, and the common end of the single-path bistable relay module is connected with the positive output end of the DC power supply and the positive power supply end of the single-path bistable relay module.

[0009] Further technical scheme is that the positive power supply end of the single-path bistable relay module is connected with the control end of the single-path bistable relay module through button SB1;

[0010] The negative power supply end of the single-channel bistable relay module is connected with the negative poles of the indicator light HG and the indicator light Hr, the positive pole of the indicator light Hr is connected with the positive output end of the direct current power supply through the normally closed contact of the alternating current contactor KM, and the positive pole of the indicator light HG is connected with the positive output end of the direct current power supply through the first normally open contact of the alternating current contactor KM.

[0011] Further, one end of the coil of the alternating current contactor KM is connected with the N line, the other end of the coil of the alternating current contactor KM is connected with one end of the normally closed contact of the thermal relay KH, the other end of the normally closed contact of the thermal relay KH is connected with one end of the normally open contact of the relay KA1.

[0012] Further, the other end of the normally open contact of the relay KA1 is connected with the L line through a fuse and the positive input end of the direct current power supply, the negative input end of the direct current power supply is connected with the N line, and the grounding end of the direct current power supply is connected with the PE line.

[0013] Further, the L line and the N line are connected with the miniature circuit breaker QF in series, the second normally open contact and the third normally open contact of the alternating current contactor KM are connected with the L line and the N line in series respectively, one end of the second normally open contact of the alternating current contactor KM is connected with the positive pole of the load through the coil of the thermal relay KH, one end of the third normally open contact of the alternating current contactor KM is connected with the negative pole of the load through the coil of the thermal relay KH, and the grounding end of the load is connected with the PE line.

[0014] Further, the miniature circuit breaker QF, the relay KA1, the alternating current contactor KM, the thermal relay KH and the fuse are arranged in the power supply control box, and the single-channel bistable relay module is arranged in the power supply control box or is combined with the membrane switch to form an integral whole.

[0015] Further, the power supply control box is arranged in the clean room ceiling, the membrane switch surface is provided with 3M double-sided adhesive tape on the back surface, the membrane switch surface is attached to the inner wall of the clean room through the 3M double-sided adhesive tape, and the inner wall of the clean room is embedded with a PVC wire pipe.

[0016] Further, the model of the single-channel bistable relay module comprises JK06B.

[0017] Further, the load comprises a power supply driving controller of an LED clean lamp.

[0018] The beneficial technical effects of the utility model are as follows:

[0019] (1) The switch state can be clearly displayed through the display module, and the thickness of the membrane switch is convenient for installation and use.

[0020] (2) Work in DC 24V safety voltage, can avoid the occurrence of electric shock accident in clean room daily maintenance or clean room reconstruction, improve the safety factor of clean room lighting power. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the circuit principle diagram of an embodiment of the ultra-thin film lighting switch controller provided by the utility model.

[0022] Figure 2 It is the installation schematic view of the film switch and the control box in an embodiment of the utility model.

[0023] The figure mark: 1-film switch, 2-power control box, 3-soft connection line, 4-mother socket, 5-power drive controller. DETAILED DESCRIPTION

[0024] The specific embodiment of the utility model is further explained in combination with the drawings.

[0025] The utility model provides a kind of ultra-thin film lighting switch controller for clean room, including film switch 1 and power control circuit, the power control circuit is connected between film switch and load, and the power supply state of load is controlled by power control circuit through film switch.

[0026] The film switch 1 includes film switch face paste and display module being arranged at the front of film switch face paste, and the display module is used to show the switch state of film switch.

[0027] Specifically, the thickness of the film switch face paste is 0.9mm-1.3mm, and the load can be the power drive controller 5 of LED clean lamp, and the LED clean lamp in clean room is controlled by controlling the power-on state of LED clean lamp power drive controller 5.The display module includes indicator HG and indicator Hr, and in the embodiment, the indicator HG is green indicator, is used to light when film switch 1 is in closed state, and the indicator Hr is red indicator, is used to light when film switch 1 is in disconnected state.The film switch face paste front is provided with button SB1, and the button SB1 is normally open button, and the switch state of film switch 1 can be set by button SB1.

[0028] The power control circuit includes relay KA1, AC contactor KM, thermal relay KH and single-path bistable relay module, and in the embodiment, the model of single-path bistable relay module is JK06B.As shown in the drawing, Figure 1 The normally open end of single-path bistable relay module, i.e. Figure 1The NO terminal is connected to one end of a relay KA1 coil, the other end of the relay KA1 coil is connected to a negative output terminal of a DC power supply and a negative power terminal of a single-channel bistable relay module, a common terminal of the single-channel bistable relay module, i.e. Figure 1 The COM terminal is connected to a positive output terminal of the DC power supply and a positive power terminal of the single-channel bistable relay module, and an output voltage of the DC power supply is 24V.

[0029] The positive power terminal of the single-channel bistable relay module is connected to a control terminal of the single-channel bistable relay module, i.e. Figure 1 The K1 terminal, the negative power terminal of the single-channel bistable relay module, a negative electrode of an indicating lamp HG and a negative electrode of an indicating lamp Hr are connected, a positive electrode of the indicating lamp Hr is connected to a positive output terminal of the DC power supply through a normally open contact of an AC contactor KM, and a positive electrode of the indicating lamp HG is connected to the positive output terminal of the DC power supply through a first normally open contact of the AC contactor KM. One end of a coil of the AC contactor KM is connected to an N line, the other end of the coil of the AC contactor KM is connected to one end of a normally closed contact of a thermal relay KH, the other end of the normally closed contact of the thermal relay KH is connected to one end of a normally open contact of a relay KA1, and the thermal relay is used to provide overload protection.

[0030] The other end of the normally open contact of the relay KA1 is connected to an L line (fire wire) through a fuse and connected to a positive input terminal of the DC power supply, a negative input terminal of the DC power supply is connected to an N line (zero line), and a grounding terminal of the DC power supply is connected to a PE line (protective grounding line). A miniature circuit breaker QF is connected in series in the L line and the N line, a second normally open contact and a third normally open contact of the AC contactor KM are connected in series in the L line and the N line respectively, one end of the second normally open contact of the AC contactor KM is connected to a positive electrode of a load through a coil of the thermal relay KH, one end of the third normally open contact of the AC contactor KM is connected to a negative electrode of the load through the coil of the thermal relay KH, and a grounding terminal of the load is connected to the PE line.

[0031] The specific working principle of the ultra-thin film lighting switch controller is as follows: the default state of the film switch is off, the micro circuit breaker QF is closed, the DC power supply is powered on, at this time, the button SB1 on the film switch is pressed, the film switch 1 is in a closed state, the control end of the single-channel bistable relay module is triggered, the common end and the normally open end are connected to make the coil of the relay KA1 powered on, the normally open contact of the relay KA1 is closed, thereby the coil of the AC contactor KM is powered on, the first, second and third normally open contacts of the AC contactor KM are closed, the LED clean lamp in the clean room is powered on and lit up, the normally closed contact of the AC contactor KM is opened, and the indicator lamp HG is lit up; the button SB1 on the film switch 1 is pressed again, the film switch 1 enters an off state, the control end of the single-channel bistable relay module is triggered again, the common end and the normally open end of the single-channel bistable relay module are disconnected, the coil of the relay KA1 is powered off and stopped working, the coil of the AC contactor KM is powered off and stopped working, the first, second and third normally open contacts of the AC contactor KM are opened, the LED clean lamp in the clean room is powered off and extinguished, and the normally closed contact of the AC contactor KM is closed to make the indicator lamp Hr lit up.

[0032] Further, the micro circuit breaker QF, the relay KA1, the AC contactor KM, the thermal relay KH and the fuse are arranged in the power supply control box 2, and the single-channel bistable relay module is arranged in the power supply control box 2 or combined with the film switch to form a whole. In the embodiment, the single-channel bistable relay module is arranged in the power supply control box 2, which is convenient for inspection and maintenance. In specific implementation, the position of the single-channel bistable relay module can be determined according to the cost. The elements in the power supply control box 2 are arranged on a PCB to realize integrated circuit board. The power supply control box 2 is provided with a 220V power supply inlet end and a 220V power supply outlet end. The L line, the N line and the PE line are connected to the elements in the power supply control box 2 through the 220V power supply inlet end and led out through the 220V power supply outlet end to be connected to the power supply drive controller 5 of the LED clean lamp.

[0033] In a possible application mode of the above lighting switch controller, as shown in Figure 2 The power supply control box 2 is arranged in the ceiling of the clean room, the film switch surface is provided with 3M double-sided adhesive tape on the back, the film switch surface is attached to the inner wall of the clean room through the 3M double-sided adhesive tape, and the inner wall of the clean room is embedded with a PVC wire pipe. Specifically, the inner wall of the clean room is mostly a color steel plate wall, the PVC wire pipe is pre-embedded in the color steel plate wall, the soft connection wire 3 is laid in the PVC wire pipe during application, and the soft connection wire 3 between the film switch 1 and the power supply control box 2 is buried and installed.

[0034] The above merely describes preferred embodiments of the present application, and the present application is not limited to the above embodiments. It can be understood that other improvements and changes directly derived or thought of by those skilled in the art without departing from the spirit and concept of the present application shall be considered to be within the scope of protection of the present application.

Claims

1. An ultra-thin membrane light switch controller for clean rooms, characterized by, The thin film switch and a power supply control circuit connected between the thin film switch and a load, the thin film switch controls the power supply state of the load through the power supply control circuit. The thin film switch includes a thin film switch face and a display module arranged on the front of the thin film switch face, the display module is used for displaying the switch state of the thin film switch.

2. The ultra-thin membrane switch controller for clean rooms according to claim 1, characterized in that, The thin film switch face is further provided with a button SB1, the display module includes an indicator light HG and an indicator light Hr; the power supply control circuit includes a relay KA1, an alternating current contactor KM, a thermal relay KH and a single-channel bistable relay module, wherein, One end of the normally open end of the single-channel bistable relay module is connected with one end of the coil of the relay KA1, the other end of the coil of the relay KA1 is connected with the negative output end of the direct current power supply and the negative power supply end of the single-channel bistable relay module, and the common end of the single-channel bistable relay module is connected with the positive output end of the direct current power supply and the positive power supply end of the single-channel bistable relay module.

3. The ultra-thin membrane switch controller for clean rooms according to claim 2, characterized in that, The positive power supply end of the single-channel bistable relay module is connected with the control end of the single-channel bistable relay module through the button SB1. The negative power supply end of the single-channel bistable relay module is connected with the negative electrode of the indicator light HG and the indicator light Hr, the positive electrode of the indicator light Hr is connected with the positive output end of the direct current power supply through the normally closed contact of the alternating current contactor KM, and the positive electrode of the indicator light HG is connected with the positive output end of the direct current power supply through the first normally open contact of the alternating current contactor KM.

4. The ultra-thin membrane switch controller for clean rooms according to claim 2, wherein One end of the coil of the alternating current contactor KM is connected with the N line, the other end of the coil of the alternating current contactor KM is connected with one end of the normally closed contact of the thermal relay KH, the other end of the normally closed contact of the thermal relay KH is connected with one end of the normally open contact of the relay KA1.

5. The ultra-thin membrane switch controller for clean rooms according to claim 4, characterized in that, The other end of the normally open contact of the relay KA1 is connected with the L line through a fuse and the positive input end of the direct current power supply, the negative input end of the direct current power supply is connected with the N line, and the grounding end of the direct current power supply is connected with the PE line.

6. The ultra-thin membrane switch controller for clean rooms according to claim 2, wherein The L line and the N line are connected with a miniature circuit breaker QF in series, the second normally open contact and the third normally open contact of the alternating current contactor KM are connected with the L line and the N line in series respectively, one end of the second normally open contact of the alternating current contactor KM is connected with the positive electrode of the load through the coil of the thermal relay KH, one end of the third normally open contact of the alternating current contactor KM is connected with the negative electrode of the load through the coil of the thermal relay KH, and the grounding end of the load is connected with the PE line.

7. The ultra-thin membrane switch controller for clean rooms according to claim 2, wherein The miniature circuit breaker QF, the relay KA1, the alternating current contactor KM, the thermal relay KH and the fuse are arranged in a power supply control box, and the single-channel bistable relay module is arranged in the power supply control box or combined with the thin film switch to form a whole.

8. The ultra-thin membrane switch controller for clean rooms according to claim 7, characterized in that, The power supply control box is arranged above the ceiling of a clean room, the back of the thin film switch face is provided with 3M double-sided adhesive tape, the thin film switch face is pasted on the inner wall plate in the clean room through the 3M double-sided adhesive tape, and the inner wall of the clean room is embedded with a PVC wire pipe.

9. The ultra-thin membrane switch controller for clean rooms according to claim 7, wherein, The model of the single-channel bistable relay module includes JK06B.

10. The ultra-thin membrane switch controller for clean rooms according to claim 1, wherein, The load includes a power supply driving controller of an LED clean lamp.

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