CN209896933U

CN209896933U - Short circuit prevention isolation mechanism of rectifier bridge

Info

Publication number: CN209896933U
Application number: CN201921247102.8U
Authority: CN
Inventors: 周威; 马青
Original assignee: Yangzhou Kenda Electronic Co Ltd
Current assignee: Yangzhou Kenda Electronic Co Ltd
Priority date: 2019-08-04
Filing date: 2019-08-04
Publication date: 2020-01-03
Anticipated expiration: 2029-08-04

Abstract

The utility model discloses a short circuit isolation mechanism is prevented to rectifier bridge, including the rectifier bridge, four pins of the equal fixedly connected with of four corners in top of rectifier bridge to the bottom fixedly connected with base of rectifier bridge, top one side fixedly connected with fuse of base, and an electric connection in fuse one end and four pins. The utility model discloses in, with the rectifier bridge welding on the base to as one of input in the rectifier bridge pin through wire fixed connection fuse, through condenser of wire fixed connection between input and output, through fuse and condenser combined action, make when rectifier bridge electric current or voltage are too big, the fuse fuses, and the cooperation condenser carries out the power-off protection to the circuit and handles, and then protects the safety of rectifier bridge, reduces the loss.

Description

Short circuit prevention isolation mechanism of rectifier bridge

Technical Field

The utility model relates to a geotechnical engineering reconnaissance equipment technical field especially relates to short circuit isolation mechanism is prevented to rectifier bridge.

Background

The rectifier bridge is formed by sealing a plurality of rectifier tubes in a shell to form a complete rectifier circuit. Three-phase rectifier circuits are proposed when the power is further increased or multiphase rectification is required for other reasons. The three-phase rectifier bridge is divided into a three-phase rectifier full bridge and a three-phase rectifier half bridge. The rectifier bridge is selected taking into account the rectifier circuit and the operating voltage. The rectifier circuit with high requirement on output voltage needs to be provided with a capacitor, and the capacitor of the rectifier circuit with low requirement on output voltage can be installed or not.

However, the existing rectifier bridge has a certain short circuit phenomenon in the using process, so that the existing rectifier bridge is damaged, and certain loss is caused; and the current rectifier bridge is comparatively inconvenient in the dismouting in the use, has reduced user's work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the short-circuit preventing isolation mechanism of the rectifier bridge aims to solve the problems of self damage of the short circuit of the rectifier bridge and inconvenience in disassembly and assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

short circuit isolating mechanism is prevented to rectifier bridge, including the rectifier bridge, four pins of the equal four fixedly connected with of top corners of rectifier bridge to the bottom fixedly connected with base of rectifier bridge, top one side fixedly connected with fuse of base, and fuse one end and an electric connection in four pins.

As a further description of the above technical solution:

threaded rods are embedded in four corners of the base, and the four threaded rods are connected with knobs through threads.

As a further description of the above technical solution:

a set of elastic pieces are welded at four corners of the bottom of the base, four elastic pieces are arranged at each of the four sets of elastic pieces, and the four elastic pieces are annularly arrayed around the threaded rod.

As a further description of the above technical solution:

the bottom welding of threaded rod has the lug, and the lug is round platform formula structure to the bottom diameter of round platform is greater than the threaded rod.

As a further description of the above technical solution:

the four lugs are connected with the inner wall of the elastic sheet in a sliding mode.

As a further description of the above technical solution:

a through groove is formed in the base.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, with the rectifier bridge welding on the base to as one of input in the rectifier bridge pin through wire fixed connection fuse, through condenser of wire fixed connection between input and output, through fuse and condenser combined action, make when rectifier bridge electric current or voltage are too big, the fuse fuses, and the cooperation condenser carries out the power-off protection to the circuit and handles, and then protects the safety of rectifier bridge, reduces the loss.

2. The utility model discloses in, all place into the mounting hole with four group's of four corners of base shell fragments, carry out the knob rotating, the knob upwards carries out the transmission with the threaded rod to make the lug of threaded rod bottom together move, when the lug was to shell fragment internal motion, expand four shell fragments of partition to the outside, thereby increase shell fragment bottom diameter, when the outer wall of shell fragment was laminated with the inner wall of mounting hole, carry out stable clamping action to the mounting hole promptly, thereby keep the stability of base.

Drawings

Fig. 1 is a top view of the short-circuit prevention isolation mechanism of the rectifier bridge of the present invention;

fig. 2 is a side view of the short-circuit prevention isolation mechanism for the rectifier bridge.

Illustration of the drawings:

1. a rectifier bridge; 2. a pin; 3. a base; 4. a threaded rod; 5. a knob; 6. a fuse; 7. a bump; 8. a spring plate; 9. a through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: short circuit isolation mechanism is prevented to rectifier bridge, including rectifier bridge 1, four pins 2 of the equal fixedly connected with of four corners in rectifier bridge 1's top, the through-hole has all been seted up to four pins 2 division, is convenient for be connected with the connecting wire to rectifier bridge 1's bottom fixedly connected with base 3, base 3's inside is inlayed and is equipped with the condenser, top one side fixedly connected with fuse 6 of

base

3, and 6 one end of fuse and an electric connection in four pins 2.

Specifically, as shown in fig. 1 and 2, four corners of base 3 all inlay and be equipped with threaded rod 4, and equal threaded connection has knob 5 on four threaded rods 4, the symmetrical welding has two handles on knob 5, be convenient for adjust, four corners in the bottom of base 3 all weld a set of shell fragment 8, and each in four group's shell fragments 8 all is provided with four, and four shell fragments 8 are around 4 annular arrays of threaded rod, four outer wall diameters of shell fragment 8 are less than the mounting hole, threaded rod 4's bottom welding has lug 7, and lug 7 is round platform formula structure, and the bottom diameter of round platform is greater than threaded rod 4, four lugs 7 all with the inner wall sliding connection of shell fragment 8.

Specifically, as shown in fig. 2, a through groove 9 is formed in the base 3, so as to facilitate heat dissipation.

The working principle is as follows: when the rectifier bridge is used, the rectifier bridge 1 is welded on the base 3, one of pins 2 of the rectifier bridge 1 serving as an input end is fixedly connected with the fuse 6 through a wire, a capacitor is fixedly connected between the input end and the output end through a wire, and the fuse 6 and the capacitor act together, so that when the current or voltage of the rectifier bridge 1 is too large, the fuse 6 is fused, and the circuit is subjected to power-off protection processing by matching with the capacitor, so that the safety of the rectifier bridge 1 is protected, and the loss is reduced; put into the mounting hole with four group's of four corners of base 3 shell fragments 8 all, rotate knob 5, knob 5 upwards transmits threaded rod 4, thereby make the lug 7 of threaded rod 4 bottom together move, lug 7 is when shell fragment 8 internal motion, expand four shell fragments 8 of equalling to the outside, thereby increase 8 bottom diameters of shell fragment, when the outer wall of shell fragment 8 pastes with the inner wall of mounting hole, carry out stable clamping action to the mounting hole promptly, thereby keep base 3's stability, at the in-process of 1 function of rectifier bridge, the logical groove 9 of seting up of base 3 inside carries out the radiating treatment to rectifier bridge 1, thereby promote rectifier bridge 1's runnability.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Short circuit isolating mechanism is prevented to rectifier bridge, including rectifier bridge (1), its characterized in that, four pins (2) of the equal fixedly connected with in four corners in top of rectifier bridge (1) to the bottom fixedly connected with base (3) of rectifier bridge (1), top one side fixedly connected with fuse (6) of base (3), and fuse (6) one end and an electric connection in four pins (2).

2. The rectifier bridge short-circuit prevention isolation mechanism as claimed in claim 1, wherein threaded rods (4) are embedded at four corners of the base (3), and knobs (5) are connected to the four threaded rods (4) in a threaded manner.

3. The rectifier bridge short-circuit prevention isolation mechanism as claimed in claim 1, wherein a set of spring plates (8) are welded at four corners of the bottom of the base (3), four sets of spring plates (8) are arranged at each of the four sets of spring plates, and the four spring plates (8) are annularly arrayed around the threaded rod (4).

4. The rectifier bridge short-circuit prevention isolation mechanism as claimed in claim 2, wherein the bottom of the threaded rod (4) is welded with a projection (7), the projection (7) is in a circular truncated cone structure, and the diameter of the bottom of the circular truncated cone is larger than that of the threaded rod (4).

5. The rectifier bridge short-circuit prevention isolation mechanism as claimed in claim 4, wherein the four bumps (7) are slidably connected with the inner wall of the elastic sheet (8).

6. The rectifier bridge short-circuit prevention isolation mechanism as claimed in claim 1, wherein the base (3) is internally provided with a through groove (9).