Non-isolated LED driver

Abstract

The utility model discloses a non-isolated LED driver which comprises a driver shell, a mounting rack is fixedly connected in the driver shell, an LED driver mainboard is fixedly connected to the top of the mounting rack, mounting grooves are formed in the two sides of the driver shell, and a socket and a fixing buckle are fixedly connected to the inner wall of each mounting groove. A fuse box is movably connected to the inner side of the mounting groove, fixing openings are fixedly connected to the front face and the back face of the fuse box, an electric wire is fixedly connected to one end of the fuse box, a fuse holder is fixedly connected to the interior of the fuse box, a fuse is fixedly connected to the inner side of the fuse holder, and mounting assemblies are fixedly connected to the front face and the back face of the driver shell. Through the arrangement of the fuse box, the fuse holder and the fuse, the service life of the LED driver is prolonged, and the phenomenon that main components of the LED driver are burnt out is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of LED drivers, in particular to a non-isolated LED driver. Background Art

[0002] LED driver refers to the power adjustment electronic device that drives LED to emit light or LED module components to work normally. Due to the conduction characteristics of LED PN junction, the voltage and current variation range of the power supply that it can adapt to is very narrow. A slight deviation may fail to light up the LED or seriously reduce the luminous efficiency, or shorten the service life or even burn the chip. The current industrial frequency power supply and common battery power supply are not suitable for direct supply to LED. LED driver is such an electronic component that can drive LED to work under the optimal voltage or current state.

[0003] The patent document with the prior art announcement number CN204598367U provides a non-isolated LED driver, including a single-phase AC rectifier circuit, an I.I. lamp, a current limiting resistor, and a buck converter. The single-phase AC is connected in series with the rectifier circuit, I.I. lamp, and the current limiting resistor. The buck converter is connected in parallel with the LED lamp current limiting resistor. The buck converter includes: an N-channel insulated gate field effect transistor, an inductor, a capacitor, and a diode. The inductor and the capacitor are connected in series and then connected in parallel with the diode, and then connected in series with the N-channel insulated gate field effect transistor. The non-isolated LED driver provided by the utility model has high efficiency, low loss, small output current ripple, simple circuit structure, but high output power.

[0004] However, during the use of existing non-isolated LED drivers, the LED drivers are mainly used to drive LEDs at a constant voltage. However, when installing LED light strips, due to different types of LED light strips and installation reasons such as quality, the LED light strips may short-circuit during use. Since the LED driver cannot limit the current, the LED driver may burn out during use, resulting in a short service life of the LED driver. For this reason, we propose a non-isolated LED driver. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a non-isolated LED driver to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a non-isolated LED driver, including a driver housing, a mounting frame fixedly connected to the inside of the driver housing, an LED driver mainboard fixedly connected to the top of the mounting frame, mounting grooves are opened on both sides of the driver housing, the inner walls of the mounting grooves are respectively fixedly connected with sockets and fixing buckles, the inner side of the mounting grooves is movably connected with a fuse box, the front and back sides of the fuse box are fixedly connected with fixing ports, one end of the fuse box is fixedly connected with a connection wire, the inside of the fuse box is fixedly connected with a fuse seat, the inner side of the fuse seat is fixedly connected with a fuse, and the front and back sides of the driver housing are fixedly connected with mounting components.

[0009] Preferably, one end of the socket is fixedly connected with a pin, and the pin is fixedly connected to the LED driver mainboard.

[0010] Preferably, one side of the fuse seat is fixedly connected to a power connection terminal, and the other side of the fuse seat is fixedly connected to a power connection wire.

[0011] Preferably, the fuse is made of silver-copper alloy.

[0012] Preferably, the mounting assembly comprises a mounting plate and a mounting opening, the mounting plate is fixedly connected to the front and back sides of the driver housing, and the mounting opening is formed on the top of the mounting plate.

[0013] Preferably, the outer width of the power connection terminal matches the inner width of the socket, and the power connection terminal is electrically connected to the socket.

[0014] (III) Beneficial effects

[0015] The utility model provides a non-isolated LED driver, which has the following beneficial effects:

[0016] (1) This non-isolated LED driver has a fuse box, a fuse holder and a fuse. When the LED driver is used, the staff installs the power cord and the lamp cord according to the installation requirements and the connection wires respectively. After installation, the power can be turned on. When a short circuit occurs in the lamp during the power-on process, due to the change in voltage, the fuse in the fuse holder in the fuse box will melt, thereby disconnecting the power supply and preventing the LED driver motherboard from being damaged. When the fuse in the fuse box is damaged, the staff only needs to pull the fuse box to one side, and the fuse box can be separated from the installation slot, and then a new fuse box can be inserted into the installation slot. At this time, the fixing buckle will be inserted into the fixing port, thereby fixing it. At the same time, the power terminal will be inserted into the socket to complete the replacement. In this way, the service life of the LED driver is improved and the main components of the LED driver are prevented from being burned out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the driver housing of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the fuse box of the utility model;

[0020] Figure 4 It is a sectional view of the driver housing of the utility model.

[0021] In the figure: 1. driver housing; 101. mounting frame; 102. LED driver mainboard; 2. mounting plate; 3. mounting port; 4. mounting slot; 5. fuse box; 501. fixing port; 502. fuse holder; 503. fuse; 504. power terminal; 6. wire connection; 7. socket; 701. pin; 8. fixing buckle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a non-isolated LED driver, comprising a driver housing 1, a mounting frame 101 is fixedly connected inside the driver housing 1, an LED driver mainboard 102 is fixedly connected to the top of the mounting frame 101, mounting grooves 4 are opened on both sides of the driver housing 1, a socket 7 and a fixing buckle 8 are fixedly connected to the inner wall of the mounting groove 4, a fuse box 5 is movably connected to the inner side of the mounting groove 4, a fixing port 501 is fixedly connected to the front and back sides of the fuse box 5, a connection wire 6 is fixedly connected to one end of the fuse box 5, a fuse seat 502 is fixedly connected to the inside of the fuse box 5, a fuse 503 is fixedly connected to the inner side of the fuse seat 502, and a mounting assembly is fixedly connected to the front and back sides of the driver housing 1.

[0024] In this embodiment, specifically, one end of the socket 7 is fixedly connected with a pin 701, and the pin 701 is fixedly connected to the LED driver mainboard 102. The pin 701 can be electrically connected to the LED driver mainboard 102, so as to operate normally.

[0025] In this embodiment, specifically, one side of the fuse holder 502 is fixedly connected to the power terminal 504, and the other side of the fuse holder 502 is fixedly connected to the connection wire 6. When the power cord is installed on the connection wire 6, the current flows into the fuse holder 502 through the connection wire 6, so that the current can flow normally.

[0026] In this embodiment, specifically, the fuse 503 is made of silver-copper alloy, and the fuse 503 can prevent the LED driver from burning out when a short circuit occurs in the lamp.

[0027] In this embodiment, specifically, the mounting assembly includes a mounting plate 2 and a mounting opening 3. The mounting plate 2 is fixedly connected to the front and back of the drive housing 1. The mounting opening 3 is opened on the top of the mounting plate 2. By inserting a bolt into the mounting opening 3, the mounting plate 2 can be firmly fixed on the mounting device.

[0028] In this embodiment, specifically, the outer width of the power connection terminal 504 matches the inner width of the socket 7 , and the power connection terminal 504 is electrically connected to the socket 7 , so that the power connection terminal 504 and the socket 7 can be better powered.

[0029] Working principle: After the utility model is installed, first check the installation, fixation and safety protection of the utility model. When using the LED driver, the staff will install the power cord and the lamp cord according to the installation requirements and the connecting wire 6 respectively. When the installation is completed, the power can be turned on. During the power-on process, when a short circuit fault occurs in the lamp, due to the change in voltage, the fuse 503 in the fuse holder 502 in the fuse box 5 will be blown, thereby disconnecting the power supply and avoiding damage to the LED driver mainboard 102. When the fuse 503 in the fuse box 5 is damaged, the staff only needs to pull the fuse box 5 to one side, and the fuse box 5 can be separated from the installation slot 4, and then the new fuse box 5 is inserted into the installation slot 4. At this time, the fixing buckle 8 will be inserted into the fixing port 501, thereby fixing it. At the same time, the power terminal 504 will be inserted into the socket 7 to complete the replacement. In this way, the use process of the utility model is completed. The utility model has a simple structure and is safe and convenient to use.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A non-isolated LED driver, comprising a driver housing (1), characterized in that: The driver housing (1) is fixedly connected to a mounting frame (101) inside, and the top of the mounting frame (101) is fixedly connected to an LED driver mainboard (102). The driver housing (1) is provided with mounting grooves (4) on both sides, and the inner walls of the mounting grooves (4) are respectively fixedly connected to a socket (7) and a fixing buckle (8). The inner side of the mounting groove (4) is movably connected to a fuse box (5), and the front and back sides of the fuse box (5) are fixedly connected to a fixing port (501), one end of the fuse box (5) is fixedly connected to a connection wire (6), the interior of the fuse box (5) is fixedly connected to a fuse seat (502), and the inner side of the fuse seat (502) is fixedly connected to a fuse (503), and the front and back sides of the driver housing (1) are fixedly connected to mounting components.

2. The non-isolated LED driver according to claim 1, characterized in that: One end of the socket (7) is fixedly connected to a pin (701), and the pin (701) is fixedly connected to the LED driver mainboard (102).

3. The non-isolated LED driver according to claim 1, characterized in that: One side of the fuse seat (502) is fixedly connected to a power connection terminal (504), and the other side of the fuse seat (502) is fixedly connected to a power connection wire (6).

4. The non-isolated LED driver according to claim 1, characterized in that: The fuse (503) is made of silver-copper alloy.

5. The non-isolated LED driver according to claim 1, characterized in that: The mounting assembly comprises a mounting plate (2) and a mounting opening (3); the mounting plate (2) is fixedly connected to the front and back sides of the driver housing (1); and the top of the mounting plate (2) is provided with a mounting opening (3).

6. The non-isolated LED driver according to claim 3, characterized in that: The outer width of the power connection end (504) matches the inner width of the socket (7), and the power connection end (504) is electrically connected to the socket (7).

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