CN219809873U

CN219809873U - Emergency lamp with red and green color switching function

Info

Publication number: CN219809873U
Application number: CN202320994045.XU
Authority: CN
Inventors: 陈华水
Original assignee: Je Woo Corp Ltd
Current assignee: Je Woo Corp Ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-10-10
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to the technical field of emergency lamp circuits, in particular to an emergency lamp with red and green color switching. The double-color LED PCB comprises a low-frequency transformer, a main PCB charge-discharge circuit, a dial switch control circuit and a double-color LED PCB; the low-frequency transformer is connected with the main PCB charge-discharge circuit, and the main PCB charge-discharge circuit is detachably connected with the double-color LED PCB; the low-frequency transformer is further connected with the double-color LED PCB through a dial switch control circuit, and the red or green color-switched emergency lamp can be used for realizing the red or green selection of the double-color LED by switching off the dial switch under the installation or to-be-installed situation.

Description

Emergency lamp with red and green color switching function

Technical Field

The utility model relates to the technical field of emergency lamp circuits, in particular to an emergency lamp with red and green color switching.

Background

Emergency lighting refers to lighting facilities used under abnormal conditions, including standby lighting, evacuation lighting, and safety lighting, and is widely used in hotels, shops, hospitals, casinos, commercial offices, civil buildings, and the like.

Most emergency indicator lamps are red and green in general, and each emergency lamp color can only be singly corresponding to one color. However, the color types of emergency lamps are often diverse and complex for customers, and the variety and complexity of factory products are required to meet the requirement, but factory stock often has a limit that the requirements of customers cannot be met quickly, and more complicated records are required when the customers order, which is disadvantageous in improving the production efficiency of the emergency lamps.

Disclosure of Invention

The utility model aims to provide the emergency lamp with the red-green color switching, which can realize the selection of red or green of a bicolor LED by switching off a dial switch under the installation or to-be-installed situation, thereby improving the convenience of use, simplifying the production category of the emergency lamp and improving the production efficiency.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the emergency lamp capable of switching red and green comprises a low-frequency transformer, a main PCB charge-discharge circuit, a dial switch control circuit and a double-color LED PCB;

the low-frequency transformer is connected with the main PCB charge-discharge circuit, and the main PCB charge-discharge circuit is detachably connected with the double-color LED PCB;

the low-frequency transformer is also connected with the bicolor LED PCB through a dial switch control circuit.

The emergency lamp with the red and green color switching function has the following working principle: the low-frequency transformer is used as front-end power supply and is connected with the main PCB charge-discharge circuit so as to provide charge for the main PCB charge-discharge circuit, and the main PCB charge-discharge circuit is used as a power supply component in emergency. The low-frequency transformer is connected with the double-color LED PCB board to realize supplying power to the LEDs and the PCB board, wherein the low-frequency transformer is connected with the double-color LED PCB board through the dial switch control circuit, so that the switch of the dial switch control circuit can be controlled to switch the red and green colors of the double-color LED lamp, and the emergency lamp can change various colors.

In some embodiments, the input test of the low-frequency transformer comprises three input lines of white, black and orange, wherein the parameters of the input alternating current corresponding to the combination of white and black are 120V,60HZAC;

the parameters of the input alternating current corresponding to the white and orange combination are 277v,60hz ac.

In some embodiments, the low frequency transformer outputs 8.8VAC on no load, 7.5v on load, 250ma on the output side.

In some embodiments, the main PCB charge-discharge circuit includes a MOS transistor, a triode, a voltage detector, and a current limiting resistor.

In some embodiments, the dial switch control circuit includes a 1 gear, a 2 gear and a 3 gear, and when the dial switch selects to connect the 1 gear and the 2 gear, the two-color LED lights a green light;

when the dial switch is selectively connected with the 1 gear and the 3 gear, the bicolor LED lights a red light.

In some embodiments, the dual-color LED pcb board is composed of 6 sets of common-anode dual-color LEDs and 12 chip resistors.

In some embodiments, each LED lamp in each group of common-anode bicolor LEDs is connected with a resistor, and the dial switch and the ground wire are respectively connected through a 3P terminal wire.

The emergency lamp with the red and green color switching function has the beneficial effects that:

(1) According to the red-green color switching emergency lamp, the dial switch can be turned off under the installation or to-be-installed situation, red or green can be randomly switched without changing the lamp bar, and the red or green of the double-color LED is selected, so that the convenience in use is improved, the production category of the emergency lamp is simplified, and the production efficiency is improved. In addition, in the same emergency lamp, multiple colors can be selected, so that the diversity and convenience of selection are improved.

(2) According to the emergency lamp capable of switching the red and green colors, the red and green colors share the PCB by sharing the two-color LEDs, so that the cost is saved, the labor is saved, the stock storage and the simpler ordering mode for use can be omitted for customers, and the working efficiency is improved.

Drawings

The low frequency transformer schematic of the embodiment of fig. 1;

the charge-discharge module of the embodiment of fig. 2 is schematic;

the dial switch schematic of the embodiment of fig. 3;

the dual color led pcb of the embodiment of fig. 4 is schematically illustrated.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

The emergency lamp capable of switching red and green comprises a low-frequency transformer, a main PCB charge-discharge circuit, a dial switch control circuit and a double-color LED PCB; the low-frequency transformer is connected with the main PCB charge-discharge circuit, and the main PCB charge-discharge circuit is detachably connected with the double-color LED PCB; the low-frequency transformer is also connected with the bicolor LED PCB through a dial switch control circuit.

The action and benefits of the above-mentioned red-green color switching emergency lamp: the LED lamp has the advantages that the LED lamp can be installed or to be installed under the situation, the dial switch can be disconnected, red or green can be randomly switched under the condition that the lamp bar is not changed, the red or green selection of the double-color LED is realized, the use convenience is improved on one hand, the production category of the emergency lamp is simplified on the other hand, and the production efficiency is improved. In addition, in the same emergency lamp, multiple colors can be selected, so that the diversity and convenience of selection are improved. The dual-color LEDs can be shared, so that the red and green PCB can be shared, the cost is saved, the labor is saved, the stock storage and the simpler ordering mode can be saved for customers, and the working efficiency is improved.

In this embodiment, as shown in fig. 1, the input test of the low-frequency transformer includes three input lines (i.e., input lines corresponding to white, black and orange of the LED lamp), where the parameters of the input ac corresponding to the combination of white and black are 120v,60hzac; the parameters of the input alternating current corresponding to the white and orange combination are 277v,60hz ac. The output side of the low-frequency transformer outputs 8.8VAC in an idle load and 7.5V in a load state and 250mA in a load state. The low frequency transformer adopts the whole body passing the UL authentication. The low-frequency transformer provides stable alternating voltage, and the rectification and filtering of the main PCB provides power for the nickel-cadmium battery and the double-color LED PCB.

As shown in fig. 3, the dial switch control circuit comprises a 1 gear, a 2 gear and a 3 gear, and when the dial switch is selectively connected with the 1 gear and the 2 gear, the two-color LED lights a green light; when the dial switch selects to connect the 1 st gear and the 3 rd gear, the two-color LED lights red, that is, as shown in FIG. 3, when the dial switch dials 1-2, the two-color LED lights green, and when the dial switch dials 1-3, the two-color LED lights red.

The partial working principle of the low-frequency transformer for controlling the double-color LED PCB and the main PCB charge-discharge circuit is as follows:

by testing the switch SW1 shown in FIG. 3, one end of the low-frequency transformer forms a simple constant current circuit through Q1, D10 and D11 to constantly charge the main PCB charge-discharge circuit; one end is used for supplying power to the LEDs of the bicolor LED PCB through D5, D6, R13 and R14. Q2, Q3, Q4 constitute emergent discharge circuit, and the charge is Q4 switch on, Q3 switch off, Q2 switch off, and the battery is emergent of not discharging. During discharging, Q3 is conducted, then Q2 is conducted, and the battery discharges the LED through Q2.

In this embodiment, as shown in fig. 2, the main PCB charge-discharge circuit includes a MOS transistor, a triode, a voltage detector, and a current limiting resistor.

In this embodiment, as shown in fig. 4, the dual-color LED pcb board is composed of 6 groups of common-anode dual-color LEDs and 12 chip resistors. Each LED lamp in each group of common-anode double-color LEDs is connected with a resistor, and the dial switch and the ground wire are respectively connected through a 3P terminal wire.

And by adding the resistor and the access ground wire, the working stability of the double-color LED PCB can be improved.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the diameter length of each portion shown in the drawings is not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An emergency lamp with red and green color switching function is characterized in that: the double-color LED PCB comprises a low-frequency transformer, a main PCB charge-discharge circuit, a dial switch control circuit and a double-color LED PCB;

2. The red-green color switched emergency light of claim 1, wherein: the input test of the low-frequency transformer comprises three input lines corresponding to white, black and orange, wherein the parameters of the input alternating current corresponding to the combination of white and black are 120V and 60HZAC;

3. The red-green color switched emergency light of claim 2, wherein: the output side of the low-frequency transformer outputs 8.8VAC in an idle load and 7.5V in a load state and 250mA in a load state.

4. The red-green color switched emergency light of claim 1, wherein: the main PCB charge-discharge circuit comprises an MOS tube, a triode, a voltage detector and a current-limiting resistor.

5. The red-green color switched emergency light of claim 1, wherein: the dial switch control circuit comprises a 1 gear, a 2 gear and a 3 gear, and when the dial switch is selectively connected with the 1 gear and the 2 gear, the bicolor LED lights a green light;

6. The red-green color switched emergency light of claim 5, wherein: the double-color LED PCB board consists of 6 groups of common-anode double-color LEDs and 12 patch resistors.

7. The red-green color switched emergency light of claim 6, wherein: each LED lamp in each group of common-anode double-color LEDs is connected with a resistor, and the dial switch and the ground wire are respectively connected through a 3P terminal wire.