CN216085620U

CN216085620U - Bridge-to-bridge converter for strain test line

Info

Publication number: CN216085620U
Application number: CN202121597940.5U
Authority: CN
Inventors: 南飞; 于长清; 穆冬冬; 孙野; 巫洋; 邓旭东; 谢强; 张子双; 杜书; 王震伟
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-03-18
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a bridge-to-bridge converter of a strain test wire. The device comprises an insulating shell, a knob, a press-down circuit board, a threaded column, a first wiring terminal, a second wiring terminal, a spring, a conductor, an input end and an output end; the conductor is arranged in the middle of the insulating shell; the input end is connected with the first wiring terminal; the knob is in threaded connection with the threaded column; the threaded column is fixedly connected with the downward pressing type circuit board; the lower end of the lower pressing type circuit board is fixed with a pressing plate; the lower end of the pressing plate is connected with the conductor; the lower end of the conductor is fixed with a spring; the lower end of the spring is fixed on the lower inner surface of the insulating shell; the second binding post is connected with the output end; when the down-pressing type circuit board moves downwards, the input end is connected with the output end through the first binding post, the conductor, the second binding post. The utility model can quickly and effectively reduce the preparation time of the strain test and save test consumables, and can meet the requirement of strain test data acquisition.

Description

Bridge-to-bridge converter for strain test line

Technical Field

The utility model relates to the technical field of automobiles, in particular to a bridge-to-bridge converter of a strain test line.

Background

In the development of automotive products, strain testing is an indispensable test.

At present, strain tests mainly aim at part tests and load spectrum acquisition, but in the development process of automobile products, preparation work before a series of tests from test wire harness inspection to connection to test signal reliability is required to be carried out on the strain tests often needs a lot of time, and the product development needs to be accelerated to shorten the test period. The conventional quick wiring device for the strain test cable mainly aims at a single bridge circuit, has limitations and a complex structure, and does not avoid the risks of plugging errors and unplugging. Meanwhile, the special line is required to be special, and the common strain of a full bridge of an 1/4 bridge half bridge cannot be realized. At present, there is no test converter for one-line multi-purpose corresponding to the strain test line.

Disclosure of Invention

The utility model provides a bridge-circuit converter of a strain test wire with a simple structure, which can quickly and effectively reduce the preparation time of a strain test and save test consumables, can meet the requirement of strain test data acquisition, and solves a series of problems of misplugging, looseness, no insulation and the like.

The technical problem of the utility model is explained as follows by combining the attached drawings:

a bridge-circuit converter for a strain test line comprises an insulating shell 1, a knob 2 arranged in the insulating shell 1, a downward-pressing circuit board 3, a threaded column, a first binding post 5-1, a second binding post 5-2, a spring 6, a conductor 7, an input end and an output end; the conductor 7 is arranged in the middle of the insulating shell 1; one end of the conductor 7 is provided with a first binding post 5-1, and the other end is provided with a second binding post 5-2; the input end is connected with a first binding post 5-1; the knob 2 is in threaded connection with the threaded column; the threaded column is fixedly connected with the downward pressing type circuit board 3; a pressing plate is fixed at the lower end of the lower pressing type circuit board 3; the lower end of the pressing plate is connected with the conductor 7; a spring 6 is fixed at the lower end of the conductor 7; the lower end of the spring 6 is fixed on the lower inner surface of the insulating shell 1; the second binding post 5-2 is connected with the output end; when the down-pressing type circuit board 3 moves downwards, the input end is connected with the output end through the first binding post 5-1, the electric conductor 7 and the second binding post 5-2.

The input end is connected with a first binding post 5-1 through a wiring harness 4.

The wire harness 4 comprises five wire harnesses, namely a white wire harness 4-1, a green wire harness 4-2, a brown wire harness 4-3, a black wire harness 4-4 and a red wire harness 4-5.

Five first binding posts 5-1 are respectively connected with the white wire harness 4-1, the green wire harness 4-2, the brown wire harness 4-3, the black wire harness 4-4 and the red wire harness 4-5.

The conductors 7 are provided with five conductors arranged in parallel, namely a first conductor, a second conductor, a third conductor, a fourth conductor and a fifth conductor.

The lower pressing type circuit board 3 comprises three circuit boards, namely a full-bridge circuit board, a half-bridge circuit board and an 1/4 bridge circuit board from the input end in sequence.

Four pressing plates are arranged below the full-bridge circuit board; the four pressing plates are respectively connected with the first conductor, the second conductor, the fourth conductor and the fifth conductor; two pressing plates are arranged below the half-bridge circuit board; the two pressing plates are respectively connected with the second conductor and the fifth conductor; three pressing plates are arranged below the 1/4 bridge circuit board; the three pressing plates are respectively connected with the second conductor, the third conductor and the fifth conductor.

Five second binding posts 5-2 are respectively connected with the white wire harness 4-1, the green wire harness 4-2, the brown wire harness 4-3, the black wire harness 4-4 and the red wire harness 4-5, and the green wire harness 4-2 and the brown wire harness 4-3 are converged into a green-brown communicating contact 10 and then are connected with the output end.

The utility model has the beneficial effects that:

the utility model can shorten the preparation time of the strain test, and greatly reduce the probability of a series of occurrences such as wrong connection of a misplugging line of the preparation work before the test. The converter can realize 1/4 bridge, half-bridge, three kinds of test pencil integrations in a converter of full-bridge, and this converter high-usage can change different joints according to various test equipment, for example SoMat eDAQ data acquisition equipment and IMC data acquisition equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a strain gage bridge converter according to the present invention;

FIG. 2 is an internal schematic diagram of a strain gage bridge converter according to the present invention;

FIG. 3 is an isometric view of the housing of the strain test line bridge converter of the present invention;

FIG. 4 is a line color diagram of a strain gage bridge converter according to the present invention;

FIG. 5 is a bridge trigger diagram of the strain gage wire bridge converter of the present invention.

In the figure:

1. an insulating housing; 2. a knob; 3. a press-down type circuit board; 4. a wire harness; 6. a spring; 7. an electrical conductor; 8. a fixed point at the upper end of the spring; 9. a fixed point at the lower end of the spring; 10. the green-brown is communicated with the contact; 4-1, white line bundle; 4-2, green wiring harness; 4-3, brown thread bundle; 4-4, black line beam; 4-5, red line bundle; 5-1, a first binding post; 5-2 and a second binding post.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the bridge-to-bridge converter for the strain test line comprises an insulating shell 1, a knob 2 arranged inside the insulating shell 1, a press-down circuit board 3, a threaded column, a first binding post 5-1, a second binding post 5-2, a spring 6, a conductor 7, an input end and an output end.

Referring to fig. 3, the insulating housing 1 is rectangular, and the knob 2 is disposed outside the insulating housing 1.

The conductor 7 is arranged in the middle of the insulating shell 1; one end of the conductor 7 is provided with a first binding post 5-1, and the other end is provided with a second binding post 5-2.

The insulating shell 1 is used for supporting the wiring harness 4, the first wiring terminal 5-1 and the second wiring terminal 5-2, limiting the descending and ascending of the knob 2 and the press-down circuit board 3 and limiting the lower end position of the spring 6.

The knob 2 and the press-down circuit board 3 are used for controlling the on-off of the conductor 7. The knobs 2 are three, wherein the knobs 2 marked with full bridge, half bridge and 1/4 bridge characters are respectively screwed down to be connected with the corresponding bridge circuits.

The first binding post 5-1 and the second binding post 5-2 are used for amplifying the contact of the wiring harness 4 to facilitate the triggering of the electric conductor 7.

The wiring harness 4 is used for connecting the first binding post 5-1 and the second binding post 5-2.

The spring 6 is used for limiting the conductor 7, the upper end of the spring is connected with the conductor 7 through a spring upper end fixing point 8, and the lower end of the spring is connected with the insulating shell 1 through a spring lower end fixing point 9.

The electric conductor 7 is used for connecting the first binding post 5-1 and the second binding post 5-2 at two ends and limiting the position of the upper end of the spring 6.

The input end is connected with a first binding post 5-1; the knob 2 is in threaded connection with the threaded column; the threaded column is fixedly connected with the downward pressing type circuit board 3; a pressing plate is fixed at the lower end of the lower pressing type circuit board 3; the lower end of the pressing plate is connected with the conductor 7; a spring 6 is fixed at the lower end of the conductor 7; the lower end of the spring 6 is fixed on the lower inner surface of the insulating shell 1; the second binding post 5-2 is connected with the output end; when the down-pressing type circuit board 3 moves downwards, the input end is connected with the output end through the first binding post 5-1, the electric conductor 7 and the second binding post 5-2.

Referring to fig. 1-5, one end is the data acquisition test harness input harness and the other end is the converter signal output harness.

The working principle of the utility model is as follows:

referring to fig. 3-5, the line colors are all the line colors in the converter. The knob 2 is screwed down to apply pressure to the first conductor, the second conductor, the fourth conductor and the fifth conductor through the full-bridge push-down circuit board, the first conductor, the second conductor, the fourth conductor and the fifth conductor connect red in the sampling test line input line bundle with red in the converter signal output line bundle, connect black in the sampling test line input line bundle with black in the converter signal output line bundle, connect white in the sampling test line input line bundle with white in the converter signal output line bundle, and connect green in the sampling test line input line bundle with green in the converter signal output line bundle.

Referring to fig. 3-5, the half-bridge push-down circuit board with the knob 2 turned down applies pressure to the second and fifth conductors, which connect red in the digital test line input line bundle with red in the converter signal output line bundle and connect green in the digital test line input line bundle with green in the converter signal output line bundle.

Referring to fig. 3-5, the knob 21/4 is turned down to apply pressure to the second, third and fifth conductors, which connect the red in the input line bundle of the sampling test line with the red in the output line bundle of the converter signal, and connect the green-brown in the input line bundle of the sampling test line with the green in the output line bundle of the converter signal through the green-brown connection contact 10.

In conclusion, the utility model can shorten the preparation time of the strain test, and greatly reduce the probability of a series of occurrences such as wrong connection of a misplugging line of the preparation work before the test. The converter can realize 1/4 bridge, half-bridge, three kinds of experimental pencil integrations of full-bridge in a converter, and this converter high-usage can change different joints according to various test equipment.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A strain test line bridge converter is characterized by comprising an insulating shell (1), a knob (2) arranged in the insulating shell (1), a down-pressing circuit board (3), a threaded column, a first binding post (5-1), a second binding post (5-2), a spring (6), a conductor (7), an input end and an output end; the conductor (7) is arranged in the middle of the insulating shell (1); one end of the electric conductor (7) is provided with a first binding post (5-1), and the other end is provided with a second binding post (5-2); the input end is connected with a first binding post (5-1); the knob (2) is in threaded connection with the threaded column; the threaded column is fixedly connected with the downward pressing type circuit board (3); a pressing plate is fixed at the lower end of the downward pressing type circuit board (3); the lower end of the pressing plate is connected with the conductor (7); a spring (6) is fixed at the lower end of the conductor (7); the lower end of the spring (6) is fixed on the lower inner surface of the insulating shell (1); the second binding post (5-2) is connected with the output end; when the down-pressing type circuit board (3) moves downwards, the input end is connected with the output end through the first binding post (5-1), the electric conductor (7) and the second binding post (5-2).

2. The converter according to claim 1, characterized in that said input terminal is connected to the first terminal stud (5-1) by means of a wiring harness (4).

3. The converter according to claim 2, characterized in that said bundles (4) are five bundles, in turn a white bundle (4-1), a green bundle (4-2), a brown bundle (4-3), a black bundle (4-4), a red bundle (4-5).

4. A strain gage bridge converter as claimed in claim 3, wherein five of said first terminals (5-1) are connected to the white (4-1), green (4-2), brown (4-3), black (4-4) and red (4-5) harnesses, respectively.

5. The strain-testing line bridge converter according to claim 1, wherein said electrical conductors (7) are in parallel five, respectively a first electrical conductor, a second electrical conductor, a third electrical conductor, a fourth electrical conductor and a fifth electrical conductor.

6. The converter according to claim 5, wherein the hold-down circuit board (3) comprises three, in order from the input end, a full bridge circuit board, a half bridge circuit board and an 1/4 bridge circuit board.

7. The converter according to claim 6, wherein four pressing plates are disposed under the full bridge circuit board; the four pressing plates are respectively connected with the first conductor, the second conductor, the fourth conductor and the fifth conductor; two pressing plates are arranged below the half-bridge circuit board; the two pressing plates are respectively connected with the second conductor and the fifth conductor; three pressing plates are arranged below the 1/4 bridge circuit board; the three pressing plates are respectively connected with the second conductor, the third conductor and the fifth conductor.

8. The converter according to claim 1, wherein five of the second terminals (5-2) are connected to a white wire (4-1), a green wire (4-2), a brown wire (4-3), a black wire (4-4), and a red wire (4-5), and the green wire (4-2) and the brown wire (4-3) are converged into a green-brown connecting contact (10) and then connected to the output terminal.