Linear voltage regulator with current limiting protection structure

Abstract

The utility model discloses a linear voltage regulator with a current-limiting protection structure, which comprises a shell, a plurality of slots arranged on the side surface of the shell and pins, the pins penetrate through the slots on the side surface of the shell in a sliding manner, the current-limiting protection structure is arranged on the inner wall of the shell, and the current-limiting protection structure is arranged on the inner wall of the shell. The current-limiting protection structure can enable the main control board to control current limiting through a connecting line, the current-limiting protection structure comprises a partition plate, the partition plate is fixedly installed on the surface of the inner wall of the shell, the main control board is fixedly installed on the upper surface of the partition plate, and the side surface of the main control board is fixedly connected with the connecting line. And the other end of the connecting wire slidably penetrates through the inner wall surface of the slot of the shell and is connected with the pin. According to the linear voltage regulator with the current-limiting protection structure, the current-limiting protection structure is arranged, the main control board can control current limiting on the pins through the connecting line, overheating and overload are avoided, the adjusting structure is arranged, and the adaptability of the linear voltage regulator is higher by adjusting the pins.

Description

Technical Field

[0001] The utility model relates to the technical field of linear voltage stabilizers, in particular to a linear voltage stabilizer provided with a current limiting protection structure. Background Art

[0002] A linear voltage regulator is an electronic device that can convert unregulated DC voltage into a stable, regulated DC voltage. The circuit structure of a linear voltage regulator is relatively simple, and it uses fewer components, so the manufacturing cost is low. Because it operates in the linear region, it does not generate high-frequency switching noise, and the output voltage ripple is very small. It can provide clean power for noise-sensitive circuits and is suitable for providing stable power for various electronic devices such as mobile phones, computers, and tablets. In particular, linear voltage regulators can provide high-quality power for noise-sensitive small signal processing circuits such as audio amplifiers and radio frequency circuits.

[0003] When an abnormal condition occurs at the load end, such as a short circuit or a sudden and significant increase in load current, excessive current will continue to flow without current limiting. This may cause key components such as the power transistors inside the regulator to be subjected to current stress exceeding their rated capacity, causing the components to overheat or even burn out, thereby damaging the linear regulator. This will not only affect the normal operation of the load equipment connected to the output of the regulator, but may also interfere with the voltage stability of the entire power supply system. Utility Model Content

[0004] The purpose of the present invention is to provide a linear voltage regulator with a current limiting protection structure to solve the problem in the above background art that when the current increases greatly, the component overheats and shortens the service life.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a linear voltage regulator provided with a current limiting protection structure, comprising a shell, wherein the side surface of the shell is provided with multiple slots, and further comprising pins, wherein the pins slide through the side surface slots of the shell, and the current limiting protection structure is installed on the inner wall of the shell, and the current limiting protection structure enables the main control board to control the current limiting through the connecting line.

[0006] Preferably, the current limiting protection structure includes a partition, which is fixedly installed on the inner wall surface of the shell, and a main control board is fixedly installed on the upper surface of the partition. The side surface of the main control board is fixedly connected with a connecting wire, and the other end of the connecting wire slides through the slotted inner wall surface of the shell and is connected to the pin. A limiting groove is fixedly installed on the upper surface of the partition, and the connecting wire is embedded and slidably installed inside the limiting groove, and the side end of the pin is fixedly connected with a connecting plate.

[0007] By adopting the above technical solution, the main control board is used to control the current limiting of the connecting line.

[0008] Preferably, the groove of the limiting groove is set to a semi-arc structure.

[0009] The above technical solution is adopted to facilitate the position limiting of the connecting wire.

[0010] Preferably, the connecting plate slides through the central slot on the side surface of the housing.

[0011] The adoption of the technical solution facilitates the movement of the sliding plate.

[0012] Preferably, an adjustment structure is further provided inside the shell, and the adjustment structure can move the adjustment pin by engaging with a clamping block.

[0013] The above technical solution makes the pin connection more flexible.

[0014] Preferably, the adjustment structure includes a pressure plate, a card block is installed on the outer surface of the pressure plate, an opening is provided on the slotted inner surface of the shell corresponding to the card block, grooves are provided at positions corresponding to the pins and the card block, and two pressure plates are symmetrically provided, a tooth plate is fixedly installed on the lower surface of the pressure plate, and the tooth plate is slidably installed on the bottom surface of the inner wall of the shell, and a gear is meshed and connected between the tooth plates connected by the two pressure plates, and the lower surface of the gear is coaxially fixedly connected to the rotating shaft of the motor, and the motor is fixedly installed on the bottom surface of the inner wall of the shell.

[0015] By adopting the above technical solution, the engagement between the card block and the pin can be controlled.

[0016] Preferably, grooves are provided at positions of the pins corresponding to the card blocks.

[0017] The above technical solution makes it easy to adjust the position of the pin.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the linear voltage regulator with a current limiting protection structure:

[0019] 1. This linear regulator is equipped with a current limiting protection structure. The connection wires on the pin side are connected to the main control board. The main control board controls the current limiting of the pin connection wires to prevent excessive current from causing serious heating of key components inside the regulator.

[0020] 2. Furthermore, the main control board can adjust the current through the pin according to the specific load conditions, ensuring that the current output by the linear regulator can meet the normal operation requirements of the load without being too high to damage the load or the regulator itself;

[0021] 3. Furthermore, the pressure plate drives the card block to move so that the pins can be adjusted. The user can adjust the linear regulator according to the specific application scenario and adjust the output voltage according to the characteristics of the load to better adapt to different types of loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the shaft side surface structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from above;

[0024] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model when viewed from above.

[0026] In the figure: 1. Housing; 2. Pins; 3. Partition; 4. Connecting plate; 5. Limiting groove; 6. Connecting wire; 7. Main control board; 8. Pressure plate; 9. Block; 10. Gear plate; 11. Gear; 12. Motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The utility model provides a technical solution: a linear voltage regulator with a current limiting protection structure, including a shell 1, a pin 2, a partition 3, a connecting plate 4, a limit groove 5, a connecting line 6, a main control board 7, a pressure plate 8, a clamping block 9, a gear plate 10, a gear 11, and a motor 12.

[0029] Example 1: The linear regulator is provided with a current limiting protection structure, which can control the current limiting through the main control board 7 and the pin 2 through the connecting line 6, specifically:

[0030] The side surface of the shell 1 is provided with multiple slots and also includes pins 2, which slide through the slots on the side surface of the shell 1. A current limiting protection structure is installed on the inner wall of the shell 1. The current limiting protection structure enables the main control board 7 to control the current limiting through the connecting line 6. The current limiting protection structure includes a partition 3, which is fixedly installed on the inner wall surface of the shell 1. The main control board 7 is fixedly installed on the upper surface of the partition 3. The side surface of the main control board 7 is fixedly connected to the connecting line 6. The other end of the connecting line 6 slides through the slotted inner wall surface of the shell 1 and is connected to the pin 2. The upper surface of the partition 3 is fixedly installed with a limiting groove 5, and the connecting line 6 is embedded and slidably installed inside the limiting groove 5. The side end of the pin 2 is fixedly connected with a connecting plate 4. The groove of the limiting groove 5 is set to a semi-arc structure, and the connecting plate 4 slides through the slot located in the middle of the side surface of the shell 1.

[0031] When the linear voltage regulator is in use, a plurality of slots provided on the side surface of the shell 1 are connected to the pins 2, and a main control board 7 is installed on the upper surface of the partition 3 fixedly installed on the inner wall surface of the shell 1. The main control board 7 is connected to the pins 2 through the connecting wire 6. The connecting wire 6 and the pin 2 can be current limited by the main control board 7. A limiting groove 5 is fixedly installed on the upper surface of the partition 3 to limit the connecting wire 6, which is convenient for stretching the connecting wire 6 during subsequent adjustment of the pin 2. When the output current is too large and exceeds the normal working range of the linear voltage regulator, the main control board 7 will perform current limiting control to prevent the excessive current from affecting the power and key components inside the voltage regulator, protect the internal components from the impact of excessive current, and extend the service life of the voltage regulator.

[0032] Example 2: The linear regulator is provided with an adjustment structure, which can make the device more adaptable by adjusting pin 2, specifically:

[0033] An adjustment structure is also provided inside the housing 1, and the adjustment structure can move the adjustment pin 2 by engaging with the card block 9. The adjustment structure includes a pressure plate 8, and a card block 9 is installed on the outer surface of the pressure plate 8. The slotted inner surface of the housing 1 is provided with an opening corresponding to the card block 9. The position of the pin 2 corresponding to the card block 9 is provided with a groove. Two pressure plates 8 are symmetrically provided. A tooth plate 10 is fixedly installed on the lower surface of the pressure plate 8. The tooth plate 10 is slidably installed on the bottom surface of the inner wall of the housing 1. A gear 11 is meshed and connected between the tooth plates 10 connected by the two pressure plates 8. The lower surface of the gear 11 is fixedly connected to the rotating shaft of the motor 12 with a concentric axis. The motor 12 is fixedly installed on the bottom surface of the inner wall of the housing 1, and a groove is provided at the position corresponding to the pin 2 and the card block 9;

[0034] Furthermore, in order to adapt to different application scenarios, pin 2 can be adjusted, such as Figure 2As shown, first the motor 12 installed on the bottom surface of the inner wall of the shell 1 is turned on, and then the gear 11 is rotated. At this time, since the gear 11 is meshed and connected with the tooth plates 10 on both sides, and the two tooth plates 10 are respectively connected to the pressure plates 8, when the tooth plates 10 are driven to slide, the pressure plates 8 are moved in the opposite direction, and then the block 9 connected to the pressure plate 8 loses engagement with the pin 2, and then slides in the opening set on the inner surface of the slot of the shell 1, and then the pin 2 can be stretched outward, so that the pin 2 is stretched at the same time by the drive of the connecting plate 4, and then the motor 12 is turned on, so that the gear 11 rotates so that the tooth plate 10 drives the pressure plate 8 to move relatively, and then the block 9 is engaged with the pin 2 again, thereby enhancing the applicability and compatibility of the linear regulator.

[0035] Working principle: When using the linear voltage regulator with current limiting protection structure, a current limiting protection structure is provided, which can control the current limiting of pin 2 through the connecting line 6 through the main control board 7, and an adjustment structure is provided, which can adjust pin 2, making the device more applicable and increasing the overall practicality.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear voltage regulator with a current limiting protection structure, comprising a housing (1), wherein a side surface of the housing (1) is provided with a plurality of slots, characterized in that: It also includes a pin (2), which slides through the slot on the side surface of the housing (1), and a current limiting protection structure is installed on the inner wall of the housing (1). The current limiting protection structure enables the main control board (7) to control the current limiting through the connecting line (6).

2. The linear voltage regulator with a current limiting protection structure according to claim 1, characterized in that: The current limiting protection structure includes a partition (3), the partition (3) is fixedly mounted on the inner wall surface of the shell (1), a main control board (7) is fixedly mounted on the upper surface of the partition (3), a connecting wire (6) is fixedly connected to the side surface of the main control board (7), the other end of the connecting wire (6) slides through the slotted inner wall surface of the shell (1) and is connected to the pin (2), a limiting groove (5) is fixedly mounted on the upper surface of the partition (3), the connecting wire (6) is embedded and slidably mounted inside the limiting groove (5), and the side end of the pin (2) is fixedly connected to the connecting plate (4).

3. The linear voltage regulator with a current limiting protection structure according to claim 2, characterized in that: The groove of the limiting groove (5) is configured as a semi-arc structure.

4. The linear voltage regulator with a current limiting protection structure according to claim 2, characterized in that: The connecting plate (4) slides through a central slot on the side surface of the housing (1).

5. The linear voltage regulator with a current limiting protection structure according to claim 2, characterized in that: An adjustment structure is also provided inside the housing (1), and the adjustment structure can engage and move the adjustment pin (2) through a clamping block (9).

6. The linear voltage regulator with a current limiting protection structure according to claim 5, characterized in that: The adjustment structure includes a pressure plate (8), the outer surface of the pressure plate (8) is installed with a clamping block (9), the inner surface of the slot of the housing (1) is provided with an opening corresponding to the clamping block (9), two pressure plates (8) are symmetrically provided, the lower surface of the pressure plate (8) is fixedly installed with a tooth plate (10), the tooth plate (10) is slidably installed on the bottom surface of the inner wall of the housing (1), and a gear (11) is meshed and connected between the tooth plates (10) connected to the two pressure plates (8), and the lower surface of the gear (11) is fixedly connected with the rotating shaft of the motor (12) on the concentric axis, and the motor (12) is fixedly installed on the bottom surface of the inner wall of the housing (1).

7. The linear voltage regulator with a current limiting protection structure according to claim 6, characterized in that: A groove is provided at a position of the pin (2) corresponding to the clamping block (9).

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