CN201475857U - Lighting device for shelter interface window - Google Patents

Abstract

The utility model discloses a lighting device for an interface window of a shelter installed on an interface window cover plate, which comprises an external power supply, a step-down circuit, a brightness adjustment circuit and a lighting lamp connected in sequence, and the step-down circuit and the brightness adjustment circuit are further They are respectively connected to the charge and discharge protection circuit, and the charge and discharge protection circuit is also connected to the rechargeable battery; the brightness adjustment circuit includes a contact switch and a control chip for controlling the operation of the lighting lamp. The lighting device for the interface window of the shelter described in the utility model has the following advantages: 1. The lamp can be used independently for 6-8 hours without an external power supply; 2. The lighting range of the lamp meets the lighting requirements of the entire interface window; 3. The lighting direction of the lamp can be adjusted to meet the needs of local strong lighting; 4. The brightness of the lamp can be adjusted to meet the use under different conditions; 5. The lamp has earthquake resistance and three-proof capabilities.

Description

Lighting device for shelter interface window

technical field

The utility model relates to a lighting device for a shelter interface window in a mobile military and civilian command vehicle, in particular to a lighting device for a shelter interface window with adjustable lighting direction and brightness.

Background technique

At present, in the domestic market, in the mobile military and civilian command system, square cabins are generally used as the unified carrier of equipment. For the system using the shelter carrier, there are interface windows for signals and power on the outside of the shelter, and the transfer of equipment inside and outside the cabin and the connection with external systems are realized through the interface windows. The interface window is provided with a cover plate, and when in use, after the cover plate is opened and supported, the cable is connected to the wiring plug in the interface window. In order to facilitate the use of the interface window at night, a fixed orifice lighting lamp is generally installed in the interface window. The traditional orifice lighting follows the regulations of air defense lighting at night, and uses a DC bulb with a simple blue film for lighting. The bulbs and the connecting plugs on the interface window are fixed on the interface window panel. The lighting range is small and the light brightness is low. It is not adjustable and cannot meet the actual use needs at night.

Contents of the invention

Purpose of the invention: The technical problem to be solved by this utility model is to provide a lighting device for the interface window of the shelter, so that the interface window of the shelter can realize the lighting function of each plug-in of the interface window.

Technical solution: The utility model discloses a lighting device for the interface window of the shelter, which includes an external power supply, a step-down circuit, a brightness adjustment circuit and a lighting lamp connected in sequence, and the step-down circuit and the brightness adjustment circuit are respectively connected with the charging and discharging The protection circuit is connected, and the charge and discharge protection circuit is also connected with the rechargeable battery. The brightness adjustment circuit includes a contact switch and a control chip for controlling the operation of the lighting lamp.

In the present utility model, preferably, the lighting lamp is an LED light-emitting array.

In the present utility model, preferably, the step-down circuit includes an IB2405LS chip.

In the present utility model, preferably, the charge and discharge protection circuit includes a relay for controlling charging or discharge, and a first resistor and a second resistor respectively connected to the relay; the charge and discharge protection circuit is a lithium battery through the first resistor charging, the external power supply supplies power to the brightness adjustment circuit through the second resistor.

In the utility model, preferably, the control chip is a CD4017 chip, and the brightness adjustment circuit includes a sixth resistor, a seventh resistor and a triode; one end of the sixth resistor is connected to the base of the triode, and the other end is connected to the CD4017 The second pin of the chip is connected, one end of the seventh resistor is connected to the base of the triode, and the other end is connected to the fourth pin of the CD4017 chip; the emitter of the triode is connected to the LED light-emitting array.

In the present utility model, preferably, the rechargeable battery is a lithium battery.

The utility model adopts a highly reliable LED light-emitting array to replace the traditional DC light bulb, and solves the problems of lighting brightness and lighting use reliability; a lithium-ion battery, a step-down circuit, and a charging and discharging protection circuit are used to form the power supply circuit of the lighting lamp. The array can be supplied with an external power source by the on-board 27V DC battery, which can be used by the LED array through the step-down circuit, and can also charge the lithium battery. In the state of no external power supply, the lithium battery can be discharged by the discharge circuit to be used by the LED array, realizing independent battery power supply , the vehicle power supply, the organic integration of vehicle power charging; the use of dimming modules to achieve multi-level adjustment of LED array lighting; the way of installing on the interface window cover, plus the structural form of adjustable light angle, to achieve vertical direct lighting Orifice lighting increases the lighting range and brightness; the lampshade of the lighting lamp is made of aluminum alloy material, which is molded and milled as a whole. The built-in circuit board and lithium battery are installed and fixed in the sealed lampshade. The interior is filled with thermal silica gel. Vehicle adaptability is greatly improved.

Beneficial effects: the lighting device for the interface window of the shelter described in the utility model has the following advantages: 1. The lamp can be used independently for 6-8 hours without an external power supply; 2. The lighting range of the lamp meets the lighting requirements of the entire interface window; 3. The lighting direction can be adjusted to meet the needs of local strong lighting; 4. The lighting brightness can be adjusted to meet the use under different conditions. 5. The lamp has anti-seismic and three-proof capabilities.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, and the advantages of the above and/or other aspects of the utility model will become clearer.

Fig. 1 is the module connection diagram of the present utility model.

Fig. 2 is a schematic diagram of installation in the embodiment of the utility model.

Fig. 3 is the schematic diagram of the circuit in the utility model.

Detailed ways:

As shown in Figure 1 and Figure 3, the utility model discloses a lighting device for the interface window of the shelter, which includes an external power supply 1, a step-down circuit 2, a brightness adjustment circuit 3 and an LED light-emitting array 4 connected in sequence, the step-down The voltage circuit 2 and the brightness adjustment circuit 3 are also respectively connected to the charge and discharge protection circuit 5 , and the charge and discharge protection circuit 5 is also connected to the lithium battery 6 . The step-down circuit 2 includes an IB2405LS chip. The brightness adjustment circuit includes a contact switch K for controlling the operation of the lighting lamp and a CD4017 control chip. The charging and discharging protection circuit 5 includes a relay for controlling charging or discharging and a first resistor R1 and a second resistor R2 respectively connected to the relay; the charging and discharging protection circuit 5 charges the lithium battery through the first resistor R1, so The external power supply supplies power to the brightness adjustment circuit 3 through the second resistor R2. The brightness adjustment circuit 3 also includes a sixth resistor R6, a seventh resistor R7, and a triode 8050; one end of the sixth resistor R6 is connected to the base of the triode, and the other end is connected to the second pin of the CD4017 chip. One end of the resistor R7 is connected to the base of the triode, and the other end is connected to the 4th pin of the CD4017 chip; the emitter of the triode is connected to the LED light-emitting array.

As shown in Figure 3, more specifically, in the utility model, the external power supply 27DC or 27V AC is input to the first and second pins of the step-down module IB2405LS-1W chip through the full-bridge DB107 chip, and the output voltage is +5V DC.

When there is an external power supply, the JK contact of the relay TQ2-5V in the charge and discharge protection circuit 5 is attracted to the B contact, and the charge and discharge protection circuit 5 charges the lithium battery through the resistor R1. The external power supply supplies power to the brightness adjustment circuit through the resistor R2.

When there is no external power supply, the JK contact of the relay TQ2-5V in the charging and discharging protection circuit 5 is connected to the A contact, at this time, the lithium battery is discharged to supply power for the brightness adjustment circuit.

When the contact switch K is pressed for the first time, pin 14 of the CD4017 chip receives the signal, and the output of pin 2 is high level and is input to the base of the triode 8050 through the sixth resistor R6 to make the triode 8050 half work, and the LED array is in the middle. Bright;

When the contact switch K is pressed for the second time, the 14-pin of the CD4017 chip receives the signal, and its 4-pin output is high level and input to the base of the triode 8050 through the seventh resistor R7 to make the triode 8050 fully work, and the LED array is high Bright;

When the contact switch K is pressed for the third time, pin 14 of the CD4017 chip receives a signal, and the output of pin 7 is high level and input to pin 15 of the CD4017 chip to reset CD4017, and the LED array is extinguished.

The composition principle of the utility model is as follows: the main part of the device is composed of the lighting lamp shade of the interface window, lithium ion battery, lighting circuit and LED array. The high-performance lightweight lithium-ion battery pack can provide no less than 6 hours of power supply time. The interior of the device is filled with thermal silica gel, and the external interface adopts a rainproof aviation interface, which can work reliably under field conditions. The design principle of equipment power supply is as follows: the device is installed on the cover plate of the shelter interface window, and the charging and discharging circuit chooses to use an external power supply to supply power to the LED array when there is an external input voltage, and at the same time charge the lithium battery. When there is no external power supply, the lithium battery is discharged to power the LED array, and the light brightness adjustment module is designed to perform multi-level regulation of the light brightness. The lighting uses 6 LED light-emitting tubes to provide lighting. It has two modes of lithium battery power supply and external power supply. When the system detects that the external input voltage is lower than the lithium battery voltage, the lithium battery starts to supply power. When powering, a one-way diode is used to block the circuit loop. .

The design of the lampshade structure of the lighting device for the interface window of the shelter described in the utility model is as follows: the lampshade is made of aluminum alloy material, which is molded and milled as a whole, and is designed with a lampshade pendant, which can be hung on the interface window cover plate, the internal circuit board, The lithium battery is integrally fixed in the sealed lampshade and filled with heat-conducting silica gel, which effectively increases the vehicle-mounted shock resistance of the lamp and the reliability of field use.

The installation design and lighting range of the lighting device for the interface window of the shelter described in the utility model are described as follows: as shown in Figure 2, the lighting device 21 for the interface window of the shelter described in the utility model is installed on the interface window cover plate 22 , an LED array 4 is provided on the lighting device for the interface window of the shelter. Before use, the lighting lamp is close to the end face of the cover plate. When in use, after opening the interface window cover plate and supporting the cover plate, the lighting lamp can be rotated at a certain angle through the rotation mechanism on the lighting lamp shade pendant, and the interface window connector is vertically adjusted. For type lighting, it is assumed that the size of the interface window panel is 330mm×255mm, the size of the light outlet plate of the lighting lamp is 30mm×20mm, and the distance between the LED of the lighting lamp and the light outlet panel is 5mm. Calculated in the form of a point light source, the light can cover the entire panel as long as the distance between the lighting lamp and the interface window panel is more than 58mm. In general, after the lighting lamp is opened and used with the interface window cover, the distance from the interface window panel is about 180mm, which is much greater than the calculated value , to meet the lighting range coverage interface window panel requirements.

The utility model provides an idea and method of a lighting device for the interface window of the shelter. There are many methods and approaches for realizing the technical solution. The above description is only a preferred embodiment of the utility model. Those of ordinary skill in the art can also make some improvements and modifications without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model. All components that are not specified in this embodiment can be realized by existing technologies.

Claims (6)

1. shelter interface window lighting device that is installed in the interface window cover, it is characterized in that, comprise the external power source, reduction voltage circuit, brightness regulating circuit and the illuminating lamp that connect successively, described reduction voltage circuit and brightness regulating circuit also are connected with charge-discharge protection circuit respectively, and described charge-discharge protection circuit also is connected with rechargeable battery; Described brightness regulating circuit comprises the contact switch and the control chip of control illuminating lamp work.

2. shelter interface window lighting device according to claim 1 is characterized in that described illuminating lamp is the LED light emitting array.

3. shelter interface window lighting device according to claim 1 is characterized in that described reduction voltage circuit comprises the IB2405LS chip.

4. according to claim 2 or 3 described shelter interface window lighting devices, it is characterized in that described charge-discharge protection circuit comprises and is used to control the relay of charge or discharge and first resistance that is connected with relay respectively and second resistance; Described charge-discharge protection circuit is a lithium cell charging by first resistance, and described external power supply is the brightness regulating circuit power supply by second resistance.

5. shelter interface window lighting device according to claim 4 is characterized in that described control chip is the CD4017 chip, and described brightness regulating circuit comprises the 6th resistance, the 7th resistance and triode; One end of described the 6th resistance is connected with the base stage of triode, and the other end is connected with the 2nd pin of CD4017 chip, and an end of described the 7th resistance is connected with the base stage of triode, and the other end is connected with the 4th pin of CD4017 chip; The emitter stage of described triode is connected with described LED light emitting array.

6. shelter interface window lighting device according to claim 5 is characterized in that described rechargeable battery is a lithium battery.

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