Rectifier bridge with protection function

Abstract

The utility model discloses a rectifier bridge with a protection function, which comprises a base and a rectifier module arranged at the upper end of the base, and the rectifier module is used for adjusting and rectifying current in a circuit. The protection module is arranged on one side of the base, the protection module is used for playing a protection role in a load, a fixing plate is arranged between the rectification module and the protection module, and the rectification module is connected with the protection module through the fixing plate. The utility model belongs to the technical field of rectifier bridges, and particularly relates to a rectifier bridge with a protection function.

Description

Technical Field

[0001] The utility model belongs to the technical field of rectifier bridges, and in particular relates to a rectifier bridge with a protective function. Background Art

[0002] In modern electronic circuits, the rectifier bridge plays a vital role. It converts AC power into DC power and provides stable DC power for various electronic devices.

[0003] However, in practical applications, traditional rectifier bridges can face some challenges. Abnormal circuit conditions such as overvoltage and overcurrent can damage the rectifier bridge, impacting normal equipment operation. For example, in power systems, lightning strikes and grid fluctuations can generate transient high voltages that can impact the rectifier bridge.

[0004] To address these issues, rectifier bridges with protection have emerged. By integrating various protection circuits, such as overvoltage protection, overcurrent protection, and overheating protection, these rectifier bridges can effectively improve their reliability and stability, reducing equipment downtime and repair costs caused by faults. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the rectifier bridge of the existing equipment is damaged due to overcurrent in the circuit.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a rectifier bridge with a protective function, including a base and a rectifier module arranged at the upper end of the base, the rectifier module is used to perform regulatory rectification on the current in the circuit; it also includes a protection module arranged on one side of the base, the protection module is used to play a protective role in the load, and a fixing plate is provided between the rectifier module and the protection module, and the fixing plate connects the rectifier module and the protection module.

[0007] Furthermore, the rectifier module includes an end head and a bridge body, the end heads are arranged in five groups, the end heads are symmetrically fixed to the upper end of the base along the central axis of the base, the interior of the base constitutes a closed working chamber, the upper end of the end head is provided with a through hole connected to the working chamber, the bridge body is fixed to the inside of the working chamber, and a number of diodes are welded on the upper part of the bridge body, and the diodes are electrically connected through the bridge body.

[0008] Furthermore, the protection module includes a fixing base, a slider and a circuit breaker, the circuit breaker is fixed to the upper end of the fixing base, the screw position of the lower end of the circuit breaker is connected to the end through a fixing plate, a sliding groove is opened at the lower end of the fixing base, the slider is slidably arranged inside the sliding groove, and one end of the slider passes through the sliding groove.

[0009] Furthermore, the fixing plate is arranged in an L-shape, one end of the fixing plate is connected to the circuit breaker by screws, and the other end of the fixing plate is electrically connected to the bridge body.

[0010] Furthermore, the circuit breakers are provided in three groups, the circuit breakers and diodes form branches, and the branches are connected in parallel.

[0011] Furthermore, the switch parts of the circuit breakers are connected via fixing columns.

[0012] Furthermore, a positioning hole and a locking groove are respectively provided on both sides of the base, and the positioning hole and the locking groove are symmetrically arranged along the center line of the base, and one side of the locking groove is opened.

[0013] After adopting the above structure, the beneficial effects of the utility model are as follows:

[0014] (1) When the input voltage is too high, it will damage the diodes and other components in the rectifier bridge. Through the connected protection module, when the input voltage exceeds a certain threshold, the input can be quickly cut off to protect the rectifier bridge.

[0015] (2) The connection between the three groups of circuit breakers and the corresponding terminals is realized through the fixing plate, and the single-phase or three-phase rectification is adjusted according to the specific situation, thereby improving its performance and reliability and meeting the needs of various application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the practical half-section structure Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the practical half-section structure Figure 2 ;

[0021] Figure 5 Practical circuit based on this Figure 1 ;

[0022] Figure 6 Practical circuit based on this Figure 2 .

[0023] In the attached drawings: 1. base, 2. rectifier module, 3. protection module, 4. fixing plate, 5. positioning hole, 6. positioning slot, 7. end, 8. bridge body, 9. fixing seat, 10. slider, 11. circuit breaker, 12. fixing column. DETAILED DESCRIPTION

[0024] like Figure 1-2 As shown, a rectifier bridge with a protective function includes a base 1 and a rectifier module 2 arranged at the upper end of the base 1. The rectifier module 2 is used to regulate the current in the circuit; it also includes a protection module 3 arranged on one side of the base 1. The protection module 3 is used to play a protective role in the load. A fixing plate 4 is provided between the rectifier module 2 and the protection module 3. The fixing plate 4 connects the rectifier module 2 and the protection module 3. The fixing plate 4 is set in an L shape.

[0025] Among them, a positioning hole 5 and a positioning groove 6 are respectively provided on both sides of the base 1, and the positioning hole 5 and the positioning groove 6 are symmetrically arranged along the center line of the base 1. The positioning groove 6 is opened on one side. The positioning groove 6 is inserted into the lower end of the screw, and then the base 1 is rotated to a suitable position, and the screw is passed through the positioning hole 5 for fixing, which facilitates the fixation of the rectifier bridge and improves the stability of the device.

[0026] like Figure 2-3 -4, the rectifier module 2 includes an end 7 and a bridge body 8. The end 7 is arranged in five groups. The end 7 is symmetrically fixed to the upper end of the base 1 along the central axis of the base 1. The base 1 constitutes a closed working chamber. The upper end of the end 7 is provided with a through hole connected to the working chamber. The bridge body 8 is fixed to the inside of the working chamber. Several diodes are welded on the upper part of the bridge body 8. The diodes are electrically connected through the bridge body 8.

[0027] like Figure 2-3 As shown, the protection module 3 includes a fixing base 9, a slider 10 and a circuit breaker 11. The circuit breaker 11 is fixed to the upper end of the fixing base 9. Three groups of circuit breakers 11 are provided. The screw position at the lower end of the circuit breaker 11 is connected to the end 7 through the fixing plate 4. A slide groove is provided at the lower end of the fixing base 9. The slider 10 is slidably arranged inside the slide groove, and one end of the slider 10 passes through the slide groove.

[0028] Among them, the circuit breaker 11 and the diode form a branch, and the branches are connected in parallel. The switch parts of each circuit breaker 11 are connected through the fixed column 12. When the input voltage is too high, the diodes and other components in the rectifier bridge will be damaged. Through the connected protection module 3, when the input voltage exceeds a certain threshold, the input can be quickly cut off to protect the rectifier bridge.

[0029] Among them, one end of the fixed plate 4 is connected to the circuit breaker 11 by screws, and the other end of the fixed plate 4 is electrically connected to the bridge body 8. The connection between the three groups of circuit breakers 11 and the corresponding terminals 7 is realized through the fixed plate 4, thereby improving its performance and reliability and meeting the needs of various application scenarios.

[0030] When used specifically, Figure 5 As shown, when single-phase rectification is required, the fixed plate 4 connects the circuit breaker 11 in the middle position to the terminal 7 in the middle position, so that the two branches are connected to the main circuit, converting the device into a single-phase rectifier bridge;

[0031] like Figure 6 As shown, when three-phase rectification is required, the fixed plate 4 connects the circuit breakers 11 and the terminals 7 at three corresponding positions, and connects the three branches in parallel to the main circuit, thereby realizing the conversion of the three-phase rectifier bridge.

[0032] 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. In short, if those skilled in the art are inspired by the present invention and, without departing from the purpose of the present invention, design structures and embodiments similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A rectifier bridge with protective function, including a base, characterized in that: It also includes a rectifier module arranged at the upper end of the base, which is used to perform regulatory rectification on the current in the circuit; and a protection module arranged on one side of the base, which is used to play a protective role in the load. A fixing plate is provided between the rectifier module and the protection module, and the fixing plate connects the rectifier module and the protection module.

2. The rectifier bridge with protection function according to claim 1, characterized in that: Positioning holes and locking grooves are respectively provided on both sides of the base, and the positioning holes and the locking grooves are symmetrically arranged along the center line of the base, and one side of the locking groove is opened.

3. The rectifier bridge with protection function according to claim 1, characterized in that: The rectifier module includes an end head and a bridge body. The end heads are arranged in five groups. The end heads are symmetrically fixed to the upper end of the base along the central axis of the base. The interior of the base constitutes a closed working chamber. A through hole connected to the working chamber is opened on the upper end of the end head. The bridge body is fixed to the inside of the working chamber. Several diodes are welded on the upper part of the bridge body. The diodes are electrically connected through the bridge body.

4. The rectifier bridge with protection function according to claim 1, characterized in that: The protection module includes a fixing base, a slider and a circuit breaker. The circuit breaker is fixed to the upper end of the fixing base. The screw position of the lower end of the circuit breaker is connected to the end through a fixing plate. A sliding groove is opened at the lower end of the fixing base. The slider is slidably arranged inside the sliding groove, and one end of the slider passes through the sliding groove.

5. The rectifier bridge with protection function according to claim 4, characterized in that: The circuit breakers are provided in three groups. The circuit breakers and diodes form branches, and the branches are connected in parallel.

6. The rectifier bridge with protection function according to claim 4, characterized in that: The switch parts of the circuit breakers are connected via fixing columns.

7. The rectifier bridge with protection function according to claim 1, characterized in that: The fixing plate is arranged in an L shape, one end of the fixing plate is connected to the circuit breaker by screws, and the other end of the fixing plate is electrically connected to the bridge body.

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