CN206439782U - LED driver with protection - Google Patents

Abstract

The utility model discloses a light emitting diode driver with protect function, including bottom and upper cover, the inside intermediate position department of bottom installs the circuit board, the top of circuit board is provided with set screw all around, the inside top position department of being close to the circuit board of bottom is fixed with two heat dissipation fans, two the mount is installed to the both sides of heat dissipation fan, the top at the bottom is installed to the upper cover, the embedding has liquid crystal display on the front surface of upper cover, the both ends of upper cover are provided with the cable bayonet socket. The utility model discloses a temperature control fan dispels the heat with the control heat dissipation fan according to the temperature, makes the driver energy-concerving and environment-protective more to utilize the ballast, when the diode starts to give out light, can self-induction produce the high pressure, play fine guard action, still adopt the electric current among the current sensor monitoring driver internal circuit whether unusual simultaneously, avoided because circuit overload, the electric current is unusual, leads to burning out electrical components's problem.

Description

LED driver with protection

technical field

The utility model belongs to the field of electronic technology, in particular to a light-emitting diode driver with protection function.

Background technique

Light-emitting diodes, referred to as LEDs for short, are made of compounds containing gallium, arsenic, phosphorus, nitrogen, etc. Light-emitting diodes are semiconductor components. LEDs are called fourth-generation lighting sources or green light sources, which are energy-saving, environmentally friendly, and long-life. , small size and other characteristics, it is widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes, etc. According to different functions, it can be divided into information display, signal lights, automotive lamps, LCD screens Five categories of backlight and general lighting.

However, the LED driver with protective function on the market is not only complex in structure, but also has a single function. There is no temperature-controlled fan, and the cooling fan cannot be controlled according to the internal temperature of the driver to dissipate heat to prevent its internal electrical components from being burned out; there is no current setting. The sensor cannot monitor the current in its internal circuit, and cannot issue an alarm in time to prevent the circuit from being overloaded and burning electrical components; without a ballast, it cannot protect the start-up of the light-emitting diode.

Utility model content

The purpose of this utility model is to provide a light-emitting diode driver with protection function, to solve the above-mentioned background technology that there is no temperature control fan, and the cooling fan cannot be controlled according to the internal temperature of the driver to dissipate heat, so as to prevent the internal electrical components from being burned out; If the current sensor is installed, the current in the internal circuit cannot be monitored, and the alarm cannot be issued in time to prevent the circuit from being overloaded and burning electrical components; if the ballast is not installed, it cannot protect the start-up of the light-emitting diode.

In order to achieve the above object, the utility model provides the following technical solution: a light emitting diode driver with protection function, including a bottom cover and an upper cover, a circuit board is installed at the middle position inside the bottom cover, and the bottom of the bottom cover is provided with a fixed Bolts, fixing screws are arranged around the top of the circuit board, two cooling fans are fixed inside the bottom cover close to the upper position of the circuit board, fixing frames are installed on both sides of the two cooling fans, and two The upper end of the cooling fan is provided with a temperature sensor, a fuse is installed on one side of the bottom cover close to the circuit board, and a current sensor is provided on the other side close to the circuit board, and the inside of the bottom cover is close to the top of the current sensor A ballast is installed, the two sides of the ballast are provided with fixing seats, the upper cover is installed above the bottom cover, and the two sides of the upper cover are provided with air vents, and the front surface of the upper cover is embedded There is a liquid crystal display screen, and a control panel is installed on the front surface of the upper cover close to the lower position of the liquid crystal display screen, a display light is embedded above the control panel, and a buzzer is provided on one side of the front surface of the control panel, Both ends of the upper cover are provided with cable bayonets.

Preferably, the cooling fan is electrically connected to the temperature sensor.

Preferably, the fuse, the liquid crystal display, the buzzer and the display lamp are all electrically connected to the current sensor.

Preferably, the bottom cover and the upper cover are fixedly connected by fixing bolts.

Compared with the prior art, the beneficial effect of the utility model is that the utility model adopts a temperature-controlled fan, uses a temperature sensor to monitor the internal temperature of the driver, controls the cooling fan to dissipate heat according to the temperature, makes the driver more energy-saving and environment-friendly, and utilizes ballast When the diode starts to emit light, it can generate high voltage by self-induction. When the diode is turned on or off for a moment, it plays a very good protective role. At the same time, a current sensor is used to monitor whether the current in the internal circuit of the driver is abnormal. , The circuit is fused by the fuse to protect the circuit, avoiding the problem of burning electrical components due to circuit overload and abnormal current.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is a side view of the utility model.

In the figure: 1-bottom cover; 2-fixing frame; 3-radiating fan; 4-temperature sensor; 5-circuit board; 6-fixing seat; 7-ballast; 8-current sensor; 9-fixing screw; 10 -fuse; 11-top cover; 12-LCD display; 13-buzzer; 14-control panel;

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a light-emitting diode driver with a protective function, including a bottom cover 1 and an upper cover 11, a circuit board 5 is installed in the middle of the bottom cover 1, and the bottom cover The bottom of 1 is provided with fixing bolts 18, the top of the circuit board 5 is provided with fixing screws 9 around, the inside of the bottom cover 1 close to the upper position of the circuit board 5 is fixed with two cooling fans 3, and the two sides of the two cooling fans 3 are installed There is a fixed frame 2, and the upper ends of the two heat dissipation fans 3 are provided with a temperature sensor 4, a fuse 10 is installed at a position close to the circuit board 5 inside the bottom cover 1, and a fuse 10 is installed at a position close to the other side of the circuit board 5. A current sensor 8, and a ballast 7 is installed on the inside of the bottom cover 1 close to the top of the current sensor 8, the two sides of the ballast 7 are provided with fixing seats 6, the upper cover 11 is installed on the top of the bottom cover 1, and the upper cover 11 Vents 16 are arranged on both sides of the upper cover 11, and a liquid crystal display 12 is embedded on the front surface of the upper cover 11, and a control panel 14 is installed on the front surface of the upper cover 11 near the lower position of the liquid crystal display 12, and the top of the control panel 14 A display light 15 is embedded, and a buzzer 13 is provided on one side of the front surface of the control panel 14 , and cable bayonets 17 are provided at both ends of the upper cover 11 .

In order to facilitate the temperature sensor 4 to control the cooling fan 3 to dissipate heat, in this embodiment, preferably, the cooling fan 3 is electrically connected to the temperature sensor 4 .

In order to prevent the circuit from overloading and burning down the equipment, in this embodiment, preferably, the fuse 10 , the liquid crystal display 12 , the buzzer 13 and the indicator light 15 are all electrically connected to the current sensor 8 .

In order to facilitate the installation and removal of the driver, in this embodiment, preferably, the bottom cover 1 and the upper cover 11 are fixedly connected by fixing bolts 18 .

In order to securely fix the circuit board 5 in the bottom cover 1 , in this embodiment, preferably, six fixing screws 9 are provided in total.

The temperature sensor 4 in the utility model refers to the sensor that can feel the temperature and convert it into an available output signal. The temperature sensor 4 is the core part of the temperature measuring instrument and has a wide variety. It can be divided into two types: contact type and non-contact type according to the measurement method. According to the characteristics of sensor materials and electronic components, it is divided into two categories: thermal resistance and thermocouple.

The working principle and use process of the utility model: when the utility model is in use, the circuit board 5, the ballast 7, the current sensor 8 and the fuse 10 are connected in series first, and the circuit is connected, and the driver works normally. During the process, the current sensor 8 detects whether the current in the circuit is abnormal in real time, and displays the detection data on the liquid crystal display screen 12. If an abnormal current is detected, an alarm is generated by the buzzer 13 and the display lamp 15, and the fuse 10 Fusing the circuit to ensure that the diode will not be damaged or even burned due to circuit overload, and the vent 16 provided on the upper cover 11 plays a role in ventilation and heat dissipation, and the temperature sensor 4 will also monitor the temperature inside the bottom cover 1 when the driver is working. And display the monitoring data of temperature on the liquid crystal display screen 12, if the temperature is too high, promptly can control cooling fan 3 to carry out heat dissipation, to guarantee the normal work of driver, the utility model realizes that it has protection function, has increased the service life of driver , making the drive more durable.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. the LED drive with defencive function, including bottom（1）With upper lid（11）, it is characterised in that：The bottom Lid（1）Bosom position at circuit board is installed（5）, and bottom（1）Bottom be provided with fixing bolt（18）, the electricity Road plate（5）Top surrounding be provided with fixing screws（9）, the bottom（1）Internal close circuit board（5）Top position at consolidate Surely there are two heat emission fans（3）, two heat emission fans（3）Both sides fixed mount is installed（2）, and two heat emission fans（3）It is upper End is provided with temperature sensor（4）, the bottom（1）Internal close circuit board（5）A side position at fuse is installed （10）, close to circuit board（5）Another side position at be provided with current sensor（8）, and bottom（1）Internal close current sense Device（8）Top ballast is installed（7）, the ballast（7）Both sides be provided with fixed seat（6）, the upper lid（11）Peace Mounted in bottom（1）Top, and upper lid（11）Both sides be provided with ventilating opening（16）, the upper lid（11）Preceding surface on it is embedded There is LCDs（12）, and upper lid（11）Close to LCDs on preceding surface（12）Lower position chain of command is installed Plate（14）, the control panel（14）Top be embedded with display lamp（15）, and control panel（14）Preceding surface on side set It is equipped with buzzer（13）, the upper lid（11）Be provided at both ends with cable bayonet socket（17）.

2. the LED drive according to claim 1 with defencive function, it is characterised in that：The heat emission fan （3）With temperature sensor（4）It is electrically connected with.

3. the LED drive according to claim 1 with defencive function, it is characterised in that：The fuse （10）, LCDs（12）, buzzer（13）And display lamp（15）And current sensor（8）It is electrically connected with.

4. the LED drive according to claim 1 with defencive function, it is characterised in that：The bottom （1）With upper lid（11）Pass through fixing bolt（18）It is fixedly connected.