Low dropout regulator

Abstract

The utility model relates to the technical field of low-dropout linear voltage regulators, and discloses a low-dropout linear voltage regulator which comprises a circuit board, a sliding groove is fixedly connected to the top face of the circuit board, two sets of sliding blocks are connected into the sliding groove in a sliding mode, one side of each sliding block is fixedly connected with a shifting piece, the bottom of each shifting piece is connected with a sliding assembly in a sliding mode, and the sliding assembly is fixedly connected with the top face of the circuit board. The bottom surface of the circuit board is fixedly connected with two groups of fixing sheets, and a voltage stabilizer is inserted into the top surface of the circuit board. According to the low-dropout linear voltage regulator, through the arrangement of the sliding assembly and the inserting column, when the voltage regulator needs to be installed, the inserting column fixed to the bottom face of the voltage regulator is aligned with the inserting opening for inserting, the effect of convenient installation can be achieved, and when the voltage regulator needs to be disassembled and replaced, the two sets of poking pieces are pinched to slide on the supporting column, and the two sets of poking pieces can be conveniently disassembled and replaced. Therefore, the effect of safely and conveniently pulling out the voltage stabilizer is achieved, and the convenience of mounting and dismounting the voltage stabilizer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low voltage difference linear regulators, in particular to a low voltage difference linear regulator. Background Art

[0002] The low-dropout linear regulator is a new generation of integrated circuit regulator. The biggest difference between it and the three-terminal regulator is that the low-dropout linear regulator is a micro-chip system with very low self-consumption. It can be used for current main channel control. The chip integrates hardware circuits such as MOSFETs with extremely low on-line on-resistance, Schottky diodes, sampling resistors and voltage divider resistors, and has overcurrent protection, overtemperature protection, precision reference source, differential amplifier, delayer and other functions. The low-dropout linear regulator usually has extremely low self-noise and high power supply rejection ratio. Therefore, a low-dropout linear regulator is needed to facilitate installation and disassembly and perform overload protection.

[0003] A low-voltage difference linear regulator disclosed in the publication number CN208538012U includes a circuit board body, an insulating groove is provided on one side of the circuit board body, and a through hole is provided on the front and back of the circuit board body. A connecting shaft is fixedly connected to the front of the circuit board body, and a limiting plate is fixedly connected to the end of the connecting shaft away from the circuit board body. The low-voltage difference linear regulator moves the connecting shaft inside the limiting groove by passing the through hole through the limiting plate, and then inserts the pin into the through hole for fixing. By setting the fastening pad to be made of silicone rubber and the anti-slip strip to be made of fluororubber, the resistance between the limiting plate and the connecting plate, the connecting shaft and the limiting groove is enhanced, the contact is more stable, and it is not easy to slide, thereby achieving the effect of facilitating and flexibly installing and disassembling the voltage regulator, and achieving the goal of avoiding the inconvenience of connecting the circuit board with other components due to the large space occupied by the bolts, and it is more convenient to use.

[0004] However, the low dropout linear regulator has the following disadvantages:

[0005] (1) When installation and disassembly are required, it is not convenient to carry out the plug-in voltage stabilizer quickly and conveniently;

[0006] (2) When the circuit is overloaded, it is not convenient to overload protect the voltage stabilizer and increase its service life. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The technical problem solved by the utility model is to provide a low voltage difference linear regulator which is highly practical, can be operated simply and has a relatively simple structure, thereby solving the problems of convenient and quick plugging and unplugging of the regulator and overload protection of the regulator proposed in the above background technology.

[0009] (II) Technical solution

[0010] To achieve the above purpose, the utility model is implemented through the following technical scheme: a low voltage difference linear regulator, including a circuit board, the top surface of the circuit board is fixedly connected with a slide groove, the inside of the slide groove is slidably connected with two groups of sliders, one side of the slider is fixedly connected with a paddle, the bottom of the paddle is slidably connected with a sliding assembly, the bottom surface of the circuit board is fixedly connected with two groups of fixing plates, the top surface of the circuit board is plugged with a regulator, and one side of the regulator is fixedly connected with a fuse assembly.

[0011] Optionally, the sliding assembly includes a support column slidably connected to the bottom of the paddle, and a telescopic spring is sleeved on the surface of the support column to facilitate supporting the paddle.

[0012] Optionally, the fuse assembly includes a fuse fixedly connected to one side of the voltage stabilizer, and a protective shell is sleeved on the surface of the fuse, and the protective shell is convenient for protecting the voltage stabilizer.

[0013] Optionally, two groups of plug interfaces are provided on the surface of the circuit board, and plug posts are plugged into the inside of the plug interfaces, so that the plug posts are convenient for fixing the voltage stabilizer.

[0014] Optionally, fixing plates are threadedly connected to both sides of the circuit board, and the circuit board is made of synthetic fiber material, so that the circuit board is convenient for placing a voltage stabilizer.

[0015] Optionally, threaded holes are provided on the surfaces of the circuit board and the fixing plate, and threaded bolts are passed through the threaded holes to facilitate connection.

[0016] (III) Beneficial effects

[0017] The utility model provides a low voltage drop linear regulator, which has the following beneficial effects:

[0018] 1. The low-voltage difference linear regulator is provided with a sliding component and a plug-in column. When the voltage regulator needs to be installed, the plug-in column fixed on the bottom surface of the voltage regulator is aligned with the plug-in interface and plugged in to achieve the effect of convenient installation. When it needs to be disassembled and replaced, the two groups of paddles are pinched to make the two groups of paddles slide on the support column, and then the paddles drive the plug-in column to be squeezed inward, so as to achieve the effect of safely and conveniently pulling out the voltage regulator, thereby improving the convenience of installation and disassembly of the voltage regulator.

[0019] 2. The low voltage difference linear regulator, through the setting of the fuse component, can protect the voltage regulator from overload through the fuse when the voltage regulator is running. When the circuit is overloaded or short-circuited, the internal fuse of the fuse will blow, cutting off the power supply to prevent the voltage regulator from overheating or damage. At the same time, the protective shell can prevent the voltage regulator from being affected by the high temperature of the fuse when it blows, thereby protecting the voltage regulator, increasing the service life of the voltage regulator and avoiding damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the sliding assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fuse assembly of the utility model.

[0024] In the figure: 1. circuit board; 2. slide groove; 3. slider; 4. paddle; 5. sliding assembly; 501. support column; 502. telescopic spring; 6. fixing plate; 7. voltage stabilizer; 8. fuse assembly; 801. fuse; 802. protective housing; 9. plug-in column; 10. fixing plate; 11. threaded bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4The utility model provides a technical solution: a low-voltage difference linear regulator, including a circuit board 1, a slide groove 2 is fixedly connected to the top surface of the circuit board 1, two groups of sliders 3 are slidably connected inside the slide groove 2, a paddle 4 is fixedly connected to one side of the slider 3, and a sliding component 5 is slidably connected to the bottom of the paddle 4. Through the arrangement of the sliding component 5 and the plug-in column 9, when the voltage regulator 7 needs to be installed, the plug-in column 9 fixed on the bottom surface of the voltage regulator 7 is aligned with the plug-in interface, and plugging can achieve the effect of convenient installation. When disassembly and replacement are required, the two groups of paddles 4 are pinched to make the two groups of paddles 4 slide on the supporting column 501, and then the paddles 4 drive the plug-in column 9 to be squeezed inward, so as to achieve safe and convenient removal of the voltage regulator. The effect of 7 improves the convenience of installation and removal of the voltage stabilizer 7. Two sets of fixing plates 6 are fixedly connected to the bottom surface of the circuit board 1, and the voltage stabilizer 7 is plugged into the top surface of the circuit board 1. A fuse assembly 8 is fixedly connected to one side of the voltage stabilizer 7. Through the setting of the fuse assembly 8, when the voltage stabilizer 1 is running, the voltage stabilizer 7 is overload protected by the fuse 801. When the circuit is overloaded or short-circuited, the internal fuse of the fuse 801 is blown, and the power supply is cut off to prevent the voltage stabilizer 7 from overheating or being damaged. At the same time, the protective shell 802 can prevent the voltage stabilizer 7 from being affected by the high temperature of the fuse 801 when it is blown, thereby achieving the effect of protecting the voltage stabilizer 7, prolonging the service life of the voltage stabilizer 7, and avoiding damage.

[0027] The sliding assembly 5 includes a support column 501 slidably connected to the bottom of the paddle 4, and a telescopic spring 502 is sleeved on the surface of the support column 501. Through the arrangement of the sliding assembly 5 and the plug-in column 9, when the voltage stabilizer 7 needs to be installed, the plug-in column 9 fixed on the bottom surface of the voltage stabilizer 7 is aligned with the plug-in interface, and plugging can achieve the effect of convenient installation. When it is necessary to disassemble and replace, the two groups of paddles 4 are pinched to make the two groups of paddles 4 slide on the support column 501, and then the paddles 4 drive the plug-in column 9 to be squeezed inward, so as to achieve the effect of safely and conveniently pulling out the voltage stabilizer 7, thereby improving the convenience of installation and disassembly of the voltage stabilizer 7;

[0028] The fuse assembly 8 includes a fuse 801 fixedly connected to one side of the voltage stabilizer 7, and a protective housing 802 is sleeved on the surface of the fuse 801. Through the setting of the fuse assembly 8, when the voltage stabilizer 1 is running, the voltage stabilizer 7 is overloaded and protected by the fuse 801. When the circuit is overloaded or short-circuited, the internal fuse of the fuse 801 is blown, and the power supply is cut off to prevent the voltage stabilizer 7 from overheating or being damaged. At the same time, the protective housing 802 can prevent the voltage stabilizer 7 from being affected by the high temperature of the fuse 801 when it is blown, thereby protecting the voltage stabilizer 7, improving the service life of the voltage stabilizer 7, and avoiding damage.

[0029] The surface of the circuit board 1 is provided with two groups of plug-in interfaces, and the plug-in interfaces are internally plugged with plug-in posts 9, which facilitate plug-in.

[0030] The two sides of the circuit board 1 are threadedly connected with fixing plates 10. The circuit board 1 is made of synthetic fiber material. The circuit board 1 is used to place the voltage stabilizer 7.

[0031] Threaded holes are provided on the surfaces of the circuit board 1 and the fixing plate 10 , and threaded bolts 11 penetrate through the threaded holes. The threaded bolts 11 provide a connection.

[0032] In the utility model, the working steps of the device are as follows:

[0033] Step 1: When the voltage stabilizer 7 needs to be installed, align the plug-in column 9 fixed on the bottom surface of the voltage stabilizer 7 with the plug-in interface, and plug it in to achieve the effect of convenient installation;

[0034] Step 2: When disassembly and replacement are required, pinch the two sets of paddles 4 to make the two sets of paddles 4 slide on the support column 501, and then the paddles 4 drive the plug-in column 9 to be squeezed inward, so as to safely and conveniently pull out the voltage stabilizer 7;

[0035] The third step: the voltage regulator 7 is overloaded and protected by the fuse 801. When the circuit is overloaded or short-circuited, the internal fuse of the fuse 801 blows, cutting off the power supply to prevent the voltage regulator 7 from overheating or being damaged. At the same time, the protective housing 802 can prevent the voltage regulator 7 from being affected by the high temperature of the fuse 801 when it blows.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although 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.

Claims

1. A low voltage dropout linear regulator, comprising a circuit board (1), characterized in that: The top surface of the circuit board (1) is fixedly connected to a slide groove (2), the interior of the slide groove (2) is slidably connected to two groups of sliders (3), one side of the slider (3) is fixedly connected to a paddle (4), the bottom of the paddle (4) is slidably connected to a sliding assembly (5), the bottom surface of the circuit board (1) is fixedly connected to two groups of fixing plates (6), the top surface of the circuit board (1) is plugged with a voltage stabilizer (7), and one side of the voltage stabilizer (7) is fixedly connected to a fuse assembly (8).

2. A low voltage dropout linear regulator according to claim 1, characterized in that: The sliding assembly (5) comprises a support column (501) slidably connected to the bottom of the paddle (4), and a telescopic spring (502) is sleeved on the surface of the support column (501).

3. The low dropout linear regulator according to claim 1, characterized in that: The fuse assembly (8) comprises a fuse (801) fixedly connected to one side of the voltage stabilizer (7), and a protective housing (802) is sleeved on the surface of the fuse (801).

4. The low dropout linear regulator according to claim 1, characterized in that: The surface of the circuit board (1) is provided with two groups of plug-in ports, and plug-in posts (9) are plugged into the interior of the plug-in ports.

5. The low dropout linear regulator according to claim 1, characterized in that: Fixing plates (10) are threadedly connected to two sides of the circuit board (1), and the circuit board (1) is made of synthetic fiber material.

6. The low dropout linear regulator according to claim 1, characterized in that: The surfaces of the circuit board (1) and the fixing plate (10) are both provided with threaded holes, and threaded bolts (11) penetrate the interior of the threaded holes.

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