Overvoltage protection device for step-down constant-current constant-temperature chip

Abstract

The utility model relates to the technical field of chip overvoltage protection, and discloses a step-down constant-current constant-temperature chip overvoltage protection device, which comprises a circuit board, a step-down constant-current constant-temperature chip is arranged on the upper surface of the circuit board, a chip connector seat is arranged on the upper surface of the circuit board, and the chip connector seat is electrically connected with a voltmeter. According to the overvoltage protection device for the step-down constant-current constant-temperature chip, the sliding plate moves leftwards in the axis direction of the long plate of the C-shaped frame, and when the sliding plate moves leftwards, the contact pieces on the C-shaped frame can be driven to move rightwards, so that the two contact pieces move away from each other to disconnect the connection of the chip connector base; therefore, the voltage-reducing constant-current constant-temperature chip can obtain effective overvoltage protection, the use stability of the voltage-reducing constant-current constant-temperature chip is improved, and the problem that the voltage-reducing constant-current constant-temperature chip is easy to damage when working for a long time under a relatively high voltage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chip overvoltage protection, in particular to a voltage-reducing constant-current constant-temperature chip overvoltage protection device. Background Art

[0002] A chip, also called an integrated circuit, is a way of miniaturizing circuits (mainly semiconductor devices, but also passive components, etc.). It uses a certain process to interconnect the transistors, resistors, capacitors, inductors and other components and wiring required in a circuit, and then makes them on a small piece or several small pieces of semiconductor wafers or dielectric substrates, and then encapsulates them in a tube shell to become a miniature structure with the required circuit function. All the components have formed a whole in structure, making a big step forward in the direction of miniaturization, low power consumption, intelligence and high reliability of electronic components.

[0003] Overvoltage protection refers to a protection method that disconnects the power supply or reduces the voltage of the controlled device when the voltage of the protected circuit exceeds the predetermined maximum value. In the existing technology, overvoltage protection for chips is generally achieved by disconnecting the circuit to protect the chip. However, when the chip voltage is high, it will also emit a higher temperature. When the chip continues to operate under such high temperature conditions, it will cause a certain degree of damage to its internal components, which is very inconvenient. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a step-down constant current constant temperature chip overvoltage protection device, which has the advantages of effectively preventing chip overvoltage damage, and solves the problem that the step-down constant current constant temperature chip is easily damaged when working for a long time at a high voltage and high temperature.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of effectively preventing chip from being damaged by overvoltage, the utility model provides the following technical solutions: a step-down constant current constant temperature chip overvoltage protection device, comprising a circuit board, a step-down constant current constant temperature chip is arranged on the upper surface of the circuit board, a chip connector seat is arranged on the upper surface of the circuit board, the chip connector seat is electrically connected to the voltmeter, and an overvoltage automatic disconnection device is arranged on the upper surface of the circuit board;

[0008] The overvoltage automatic disconnect device includes a circuit board, a voltage meter is arranged on the upper surface of the circuit board, and a C-shaped frame is fixedly connected to the upper surface of the circuit board;

[0009] The outer surface of the long plate of the C-shaped frame is slidably connected with a sliding plate, and a screw rod is rotatably connected between two short plates of the C-shaped frame, and the screw rod is threadedly connected with the sliding plate.

[0010] Preferably, a fixing seat is fixedly connected to the upper surface of the circuit board, a sliding column is slidably connected inside the sliding plate, a contact piece is fixedly connected to the left end of the sliding column, and a spring is fixedly connected between the contact piece and the sliding plate.

[0011] Preferably, the spring fixing sleeve is arranged on the outer surface of the sliding column, a connecting wire is fixedly connected between the sliding column and the chip connector seat, and a similar contact piece is fixedly connected to a side of the fixing seat close to the sliding plate.

[0012] Preferably, the same connecting wire is fixedly connected between the fixing seat and the chip connector seat, a motor is fixedly connected to the outer surface of the right short plate of the C-shaped frame, and the output shaft of the motor is fixedly inserted into the screw.

[0013] Preferably, a fan support frame is fixedly connected to the upper surface of the circuit board, a fan is fixedly connected to the fan support frame, the fan is electrically connected to the voltmeter, and the motor is electrically connected to the voltmeter.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a step-down constant current constant temperature chip overvoltage protection device, which has the following beneficial effects:

[0016] 1. The step-down constant current constant temperature chip overvoltage protection device, when in use, when the voltage of the step-down constant current constant temperature chip exceeds a certain range, it will be detected by the voltmeter. After the voltmeter detects that the step-down constant current constant temperature chip is overvoltage, the voltmeter will send a signal to the motor, and the motor will start when receiving the signal, and the output shaft of the motor will drive the screw thereon to rotate. When the screw rotates, it will drive the sliding plate to move to the left in the axial direction of the long plate of the C-shaped frame through the thread thereon. When the sliding plate moves to the left, it will drive the contact piece on the C-shaped frame to move to the right, so that the two contact pieces move away from each other to disconnect the connection of the chip connector seat, so that the step-down constant current constant temperature chip can be effectively protected from overvoltage, which improves the stability of the step-down constant current constant temperature chip and avoids the problem that the step-down constant current constant temperature chip works for a long time at a higher voltage and is easily damaged.

[0017] 2. The step-down constant current constant temperature chip has an overvoltage protection device. At the same time, when the voltmeter detects that the step-down constant current constant temperature chip is overvoltage, it will also send a signal to the fan to start the fan. The started fan will blow air to the step-down constant current constant temperature chip, thereby taking away the heat generated by the step-down constant current constant temperature chip until the step-down constant current constant temperature chip stabilizes to a normal temperature, thereby avoiding damage caused by excessive temperature when the step-down constant current constant temperature chip is overvoltage, and to a certain extent improving the service life and stability of the step-down constant current constant temperature chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the over-voltage automatic disconnection device of the utility model;

[0020] Figure 3 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. Circuit board; 2. Step-down constant current constant temperature chip; 3. Voltmeter; 4. Fan support frame; 5. Fan; 6. C-shaped frame; 7. Motor; 8. Screw; 9. Sliding plate; 10. Contact piece; 11. Spring; 12. Sliding column; 13. Fixed seat; 14. Chip connector seat. 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 1-3 The utility model provides a new technical solution: a step-down constant current constant temperature chip overvoltage protection device, including a circuit board 1, a step-down constant current constant temperature chip 2 is arranged on the upper surface of the circuit board 1, a chip connector seat 14 is arranged on the upper surface of the circuit board 1, the chip connector seat 14 is electrically connected to the voltmeter 3, an overvoltage automatic disconnection device is arranged on the upper surface of the circuit board 1, and the overvoltage automatic disconnection device includes a circuit board 1, a voltmeter 3 is arranged on the upper surface of the circuit board 1, a C-shaped frame 6 is fixedly connected to the upper surface of the circuit board 1, a sliding plate 9 is slidably connected to the outer surface of the long plate of the C-shaped frame 6, a screw 8 is rotatably connected between the two short plates of the C-shaped frame 6, the screw 8 is threadedly connected to the sliding plate 9, a fixed seat 13 is fixedly connected to the upper surface of the circuit board 1, and the sliding plate 9 slides inside A sliding column 12 is connected, a contact piece 10 is fixedly connected to the left end of the sliding column 12, a spring 11 is fixedly connected between the contact piece 10 and the sliding plate 9, the spring 11 is fixedly sleeved on the outer surface of the sliding column 12, a connecting line is fixedly connected between the sliding column 12 and the chip connector seat 14, a side of the fixed seat 13 close to the sliding plate 9 is fixedly connected with the same contact piece 10, the fixed seat 13 and the chip connector seat 14 are fixedly connected with the same connecting line, the outer surface of the right short plate of the C-shaped frame 6 is fixedly connected with a motor 7, the output shaft of the motor 7 is fixedly inserted into the screw 8, the upper surface of the circuit board 1 is fixedly connected with a fan support frame 4, the fan support frame 4 is fixedly connected with a fan 5, the fan 5 is electrically connected to the voltmeter 3, and the motor 7 is electrically connected to the voltmeter 3.

[0024] Furthermore, when in use, when the voltage of the step-down constant current constant temperature chip 2 exceeds a certain range, it will be detected by the voltmeter 3. After the voltmeter 3 detects that the step-down constant current constant temperature chip 2 is overvoltage, the voltmeter 3 will send a signal to the motor 7. The motor 7 will start when receiving the signal, and the output shaft of the motor 7 will drive the screw 8 thereon to rotate. When the screw 8 rotates, it will drive the sliding plate 9 to move to the left in the axial direction of the long plate of the C-shaped frame 6 through the thread thereon. When the sliding plate 9 moves to the left, it will drive the contact piece 10 on the C-shaped frame 6 to move to the right, so that the two contact pieces 10 move away from each other to disconnect the connection of the chip connector seat 14, so that the step-down constant current constant temperature chip 2 can be effectively protected from overvoltage, thereby improving the stability of the use of the step-down constant current constant temperature chip 2 and avoiding the problem that the step-down constant current constant temperature chip 2 works for a long time at a higher voltage and is easily damaged.

[0025] Furthermore, when the voltmeter 3 detects that the step-down constant current constant temperature chip 2 is overvoltage, it will also send a signal to the fan 5 to start the fan 5. The started fan 5 will blow air toward the step-down constant current constant temperature chip 2, thereby taking away the heat emitted by the step-down constant current constant temperature chip 2 until the step-down constant current constant temperature chip 2 stabilizes to a normal temperature, thereby avoiding damage caused by excessive temperature when the step-down constant current constant temperature chip 2 is overvoltage, and to a certain extent improving the service life and stability of the step-down constant current constant temperature chip 2.

[0026] Working principle: When in use, when the voltage of the step-down constant current constant temperature chip 2 exceeds a certain range, it will be detected by the voltmeter 3. After the voltmeter 3 detects that the step-down constant current constant temperature chip 2 is overvoltage, the voltmeter 3 will send a signal to the motor 7. The motor 7 will start when receiving the signal, and the output shaft of the motor 7 will drive the screw 8 thereon to rotate. When the screw 8 rotates, it will drive the sliding plate 9 to move to the left in the axial direction of the long plate of the C-shaped frame 6 through the thread thereon. When the sliding plate 9 moves to the left, it will drive the contact piece 10 on the C-shaped frame 6 to move to the right, so that the two contact pieces 10 move away from each other to disconnect the connection of the chip connector seat 14, so that the step-down constant current constant temperature chip 2 can be effectively protected from overvoltage, which improves the stability of the use of the step-down constant current constant temperature chip 2 and avoids the problem that the step-down constant current constant temperature chip 2 works for a long time at a higher voltage and is easily damaged.

[0027] Furthermore, when the voltmeter 3 detects that the step-down constant current constant temperature chip 2 is overvoltage, it will also send a signal to the fan 5 to start the fan 5. The started fan 5 will blow air toward the step-down constant current constant temperature chip 2, thereby taking away the heat emitted by the step-down constant current constant temperature chip 2 until the step-down constant current constant temperature chip 2 stabilizes to a normal temperature, thereby avoiding damage caused by excessive temperature when the step-down constant current constant temperature chip 2 is overvoltage, and to a certain extent improving the service life and stability of the step-down constant current constant temperature chip 2.

[0028] 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 step-down constant current constant temperature chip overvoltage protection device, comprising a circuit board (1), characterized in that: The upper surface of the circuit board (1) is provided with a step-down constant current constant temperature chip (2), the upper surface of the circuit board (1) is provided with a chip connector seat (14), the chip connector seat (14) is electrically connected to the voltmeter (3), and the upper surface of the circuit board (1) is provided with an overvoltage automatic disconnection device; The overvoltage automatic disconnect device comprises a circuit board (1), a voltage meter (3) is arranged on the upper surface of the circuit board (1), and a C-shaped frame (6) is fixedly connected to the upper surface of the circuit board (1); The outer surface of the long plate of the C-shaped frame (6) is slidably connected to a sliding plate (9), and a screw rod (8) is rotatably connected between two short plates of the C-shaped frame (6), and the screw rod (8) is threadedly connected to the sliding plate (9).

2. A step-down constant current constant temperature chip overvoltage protection device according to claim 1, characterized in that: A fixing seat (13) is fixedly connected to the upper surface of the circuit board (1), a sliding column (12) is slidably connected inside the sliding plate (9), a contact piece (10) is fixedly connected to the left end of the sliding column (12), and a spring (11) is fixedly connected between the contact piece (10) and the sliding plate (9).

3. The step-down constant current constant temperature chip overvoltage protection device according to claim 2, characterized in that: The spring (11) is fixedly sleeved on the outer surface of the sliding column (12), a connecting wire is fixedly connected between the sliding column (12) and the chip connector seat (14), and a similar contact piece (10) is fixedly connected to a side of the fixed seat (13) close to the sliding plate (9).

4. The step-down constant current constant temperature chip overvoltage protection device according to claim 3, characterized in that: The same connecting wire is fixedly connected between the fixing seat (13) and the chip joint seat (14); the outer surface of the right short plate of the C-shaped frame (6) is fixedly connected to a motor (7); and the output shaft of the motor (7) is fixedly inserted into the screw rod (8).

5. The step-down constant current constant temperature chip overvoltage protection device according to claim 4, characterized in that: A fan support frame (4) is fixedly connected to the upper surface of the circuit board (1), a fan (5) is fixedly connected to the fan support frame (4), the fan (5) is electrically connected to the voltmeter (3), and the motor (7) is electrically connected to the voltmeter (3).

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