CN221101308U

CN221101308U - Module test fixture

Info

Publication number: CN221101308U
Application number: CN202322893376.7U
Authority: CN
Inventors: 杨瀚; 王晓枫; 刘青
Original assignee: Zhejiang Viewshine Intelligent Meter Co Ltd
Current assignee: Zhejiang Viewshine Intelligent Meter Co Ltd
Filing date: 2023-10-27
Publication date: 2024-06-07
Anticipated expiration: 2033-10-27

Abstract

The utility model relates to a module testing tool which comprises an upper shell, a lower shell, a main control board, a testing board, an AD detection board and a switching power supply, wherein the main control board, the testing board, the AD detection board and the switching power supply are assembled between the upper shell and the lower shell; front vertical plates and rear vertical plates are distributed and assembled on two sides of the upper shell and the lower shell; the rear vertical plate is provided with a guide rail, and a guide rail clamping piece, a power supply bracket and a switching power supply are sequentially fixed on the guide rail; the AD detection board is horizontally fixed above the main control board and is connected with the main control board through a flat cable; the utility model has high integration level, and by arranging the main control board, the test board, the AD detection board and the switch power supply and connecting the computer test software and the tested module respectively, the project test of power consumption, I/O level, serial port communication and the like of different modules can be realized, the test efficiency is high and the stability is better.

Description

Module test fixture

Technical Field

The utility model belongs to the technical field of testing, and particularly relates to a module testing tool.

Background

With the application of the internet of things technology, the gas meter is gradually developed towards the intelligent direction, and has more and more functions, so that the functions of remote meter reading, reporting, storage, safety monitoring, alarm linkage and the like can be realized. The control module of the gas meter has higher requirements, and the reliable application of the control module directly influences the normal use of the gas meter. Besides reasonable design and mature manufacturing process, the control module is also an indispensable link for module testing. The existing module test is basically composed of test software, a test main control board and a tested module, wherein the test main control board is generally customized and can only be tested for a certain module, and when other modules need to be switched, the test main control board needs to be replaced, so that the efficiency is low, and the compatibility is poor. Meanwhile, the customized test main control board is simpler, has poor stability and is difficult to support multi-path simultaneous test.

In view of the above-described problems, improvements are needed.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art, and provides the efficient and stable module testing tool which is simple in structure, ingenious in design and good in stability and supports multi-path simultaneous testing.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a module testing tool comprises an upper shell, a lower shell, a main control board, a test board, an AD detection board and a switching power supply, wherein the main control board, the test board, the AD detection board and the switching power supply are assembled between the upper shell and the lower shell; front vertical plates and rear vertical plates are distributed and assembled on two sides of the upper shell and the lower shell; the rear vertical plate is provided with a guide rail, and a guide rail clamping piece, a power supply bracket and a switching power supply are sequentially fixed on the guide rail; the main control board is fixed with the lower shell through a copper stud, the AD detection board is horizontally fixed above the main control board, and is connected with the main control board through a flat cable.

As a preferable mode of the utility model, the front vertical plate is provided with a first bending edge, the rear vertical plate is provided with a second bending edge, and the first bending edge and the second bending edge are fixed with the upper shell and the lower shell through screws.

As a preferable scheme of the utility model, the upper shell forms a first U-shaped structure with a downward opening, and the upper shell is provided with a kidney-shaped heat dissipation hole.

As a preferable scheme of the utility model, the lower shell forms a second U-shaped structure with an upward opening, and the lower shell is provided with a mounting hole for fixing the main control board.

As a preferable scheme of the utility model, the front vertical plate is equidistantly provided with a plurality of rectangular notches for fixing the DB50 bracket.

As a preferable scheme of the utility model, a plurality of first notches are arranged on the rear vertical plate and are used for fixing a power socket, a knob switch, a reset button, a USB interface and a USB positioning plate.

As a preferable scheme of the utility model, the USB locating plate is fixed with the rear vertical plate through screws and is arranged into a concave structure to locate the position of the USB interface.

As a preferable scheme of the utility model, the test board is vertically inserted on the communication interface of the main control board, a DB50 communication socket is welded on the test board, and the test board is fixed on the front vertical board through a DB50 bracket.

As a preferable scheme of the utility model, a second notch is formed in the middle of the DB50 bracket and is used for fixing the DN50 communication socket on the test board.

As a preferable scheme of the utility model, two sides of the DB50 bracket are U-shaped bending structures, and are fixedly provided with 4 screw posts which are fixed with the front vertical plate through screws.

The beneficial effects of the utility model are as follows:

1. The utility model has high integration level, and by arranging the main control board, the test board, the AD detection board and the switch power supply and connecting the computer test software and the tested module respectively, the project test of power consumption, I/O level, serial port communication and the like of different modules can be realized, the test efficiency is high and the stability is better.

2. The utility model has ingenious design and simple structure, can realize the splicing and replacement of devices by arranging the guide rail inside, realizes different testing functions and has better compatibility. Each test board is independently installed through a support, and is convenient to disassemble and assemble and good in maintenance performance.

3. The utility model has compact structure, small occupied space and high shell strength, can meet most of field test requirements, and has batch production conditions.

Drawings

FIG. 1 is a schematic structural diagram of a module testing tool according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a front vertical plate according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a rear vertical plate according to an embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of a USB locating plate according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating the installation of a switching power supply according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a DB50 bracket according to an embodiment of the present utility model;

Reference numerals: the device comprises an upper shell 1, a lower shell 2, a front vertical plate 3, a rear vertical plate 4, a main control board 5, an AD detection plate 6, a test board 7, a power socket 8, a knob switch 9, a reset key 10, a USB interface 11, a USB positioning plate 12, a switch power supply 13, a power supply bracket 14, a guide rail clamping piece 15, a guide rail 16, a copper stud 17, a DB50 bracket 18, a first U-shaped structure 101, a second U-shaped structure 201, a radiating hole 102, a first bending edge 301, a second bending edge 401, a rectangular notch 302, a first notch 402, a concave structure 1201, a second notch 1801, a bending structure 1802 and a screw column 1803.

Detailed Description

The embodiments of the present utility model will be described in detail below.

Examples:

As shown in fig. 1-6, a module testing tool comprises an upper shell 1, a lower shell 2, a main control board 5, a testing board 7, an AD detection board 6 and a switching power supply 13, wherein the main control board 5 is assembled between the upper shell 1 and the lower shell 2; the front vertical plate 3 and the rear vertical plate 4 are distributed and assembled on the two sides of the upper shell 1 and the lower shell 2; the upper shell 1 forms a first U-shaped structure 101 with a downward opening, and the upper shell 1 is provided with a kidney-shaped heat dissipation hole 102; the lower shell 2 forms a second U-shaped structure 201 with an upward opening, and the lower shell 2 is provided with a mounting hole for fixing the main control board 5; the utility model has high integration level, and by arranging the main control board, the test board, the AD detection board and the switch power supply and connecting the computer test software and the tested module respectively, the project test of power consumption, I/O level, serial port communication and the like of different modules can be realized, the test efficiency is high and the stability is better.

A guide rail 16 is assembled on the rear vertical plate 4, and a guide rail clamping piece 15, a power supply bracket 14 and a switching power supply 13 are sequentially fixed on the guide rail 16; the guide rail 16 is installed on the rear vertical plate 4, the switch power supply 13, the power supply bracket 14 and the guide rail clamping piece 15 are fixed into a whole through screws, and are clamped into the guide rail 16, so that the switch power supply 13 with different voltages can freely slide on the guide rail 16 and be configured according to requirements.

The main control board 5 is fixed with the lower shell 2 through copper studs 17 and is used for controlling a test circuit. The AD detection plate 6 is horizontally fixed above the main control plate 5 and is connected and communicated with the main control plate 5 through a flat cable to acquire a voltage signal of the tested module; the test board 7 is vertically inserted into a communication interface of the main control board 5, a DB50 communication socket is welded on the test board 7, and the test board 7 is fixed on the front vertical board 3 through a DB50 bracket 18; during testing, the DB50 connecting line is used for connecting the testing software and the tested module, and 8 paths of simultaneous testing can be supported at maximum. The test fixture can be used for configuring test boards with different numbers and functions according to test requirements, and has good compatibility.

The front vertical plate 3 and the rear vertical plate 4 are made of stainless steel materials; the front vertical plate 3 is formed with a first folded edge 301, and the rear vertical plate 4 is formed with a second folded edge 401, and the first folded edge 301 and the second folded edge 401 are fixed to the upper case 1 and the lower case 2 by screws.

A plurality of rectangular notches 302 are equidistantly distributed on the front vertical plate 3, the size of each rectangular notch 302 is matched with that of a DB50 plug, and mounting holes are formed in two sides of each rectangular notch 302 and used for fixing the DB50 bracket 18.

A plurality of first notches 402 are arranged on the rear vertical plate 4 and are respectively used for fixing a power socket 8, a knob switch 9, a reset key 10, a USB interface 11 and a USB positioning plate 12; the power socket 8 is externally connected with a 220V power supply and supplies power for the test tool. The knob switch 9 has a plurality of adjustment gears, and can be switched to different test voltage values according to the requirement. The reset key 10 is used for restarting the tool system, and when the system fails or fails, the system can be restored by pressing the reset key 10, so that the normal use of the test tool is ensured; the USB interface 11 is provided with a plurality of USB sockets, and is connected with a computer and an internal singlechip through a data line to realize the transmission of signals and data.

The USB locating plate 12 is fixed with the rear vertical plate 4 through screws and is arranged into a concave structure 1201 to locate the position of the USB interface 11; during installation, the USB interface 11 is clamped into the concave structure 1201, so that accurate positioning of the USB interface 11 is realized.

A second notch 1801 is formed in the middle of the DB50 bracket 18 and is used for fixing a DN50 communication socket on the test board 7; the DB50 bracket 18 has U-shaped bending structures 1802 at two sides, and is fixedly provided with 4 screw posts 1803, and is fixed with the front vertical plate 3 through screws.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals are used more herein: the device comprises an upper shell 1, a lower shell 2, a front vertical plate 3, a rear vertical plate 4, a main control board 5, an AD detection plate 6, a test board 7, a power socket 8, a knob switch 9, a reset key 10, a USB interface 11, a USB positioning plate 12, a switch power supply 13, a power supply bracket 14, a guide rail clamping piece 15, a guide rail 16, a copper stud 17, a DB50 bracket 18, a first U-shaped structure 101, a second U-shaped structure 201, a heat dissipation hole 102, a first bending edge 301, a second bending edge 401, a rectangular notch 302, a first notch 402, a concave structure 1201, a second notch 1801, a bending structure 1802, a screw column 1803 and other terms, but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. A module test fixture which is characterized in that: the device comprises an upper shell (1), a lower shell (2), a main control board (5), a test board (7), an AD detection board (6) and a switching power supply (13), wherein the main control board (5), the test board (7), the AD detection board (6) and the switching power supply are assembled between the upper shell (1) and the lower shell (2); the front vertical plate (3) and the rear vertical plate (4) are distributed and assembled on the two sides of the upper shell (1) and the lower shell (2); a guide rail (16) is assembled on the rear vertical plate (4), and a guide rail clamping piece (15), a power supply bracket (14) and a switching power supply (13) are sequentially fixed on the guide rail (16); the main control board (5) is fixed with the lower shell (2) through a copper stud (17), the AD detection board (6) is horizontally fixed above the main control board (5), and is connected with the main control board (5) through a flat cable.

2. The module testing tool according to claim 1, wherein: the front vertical plate (3) is provided with a first bending edge (301), the rear vertical plate (4) is provided with a second bending edge (401), and the first bending edge (301) and the second bending edge (401) are fixed with the upper shell (1) and the lower shell (2) through screws.

3. The module testing tool according to claim 1, wherein: the upper shell (1) forms a first U-shaped structure (101) with a downward opening, and the upper shell (1) is provided with a kidney-shaped heat dissipation hole (102).

4. The module testing tool according to claim 1, wherein: the lower shell (2) forms a second U-shaped structure (201) with an upward opening, and the lower shell (2) is provided with a mounting hole for fixing the main control board (5).

5. The module testing tool according to claim 1, wherein: a plurality of rectangular notches (302) are equidistantly distributed on the front vertical plate (3) and are used for fixing the DB50 bracket (18).

6. The module testing tool according to claim 1, wherein: a plurality of first notches (402) are arranged on the rear vertical plate (4) and used for fixing a power socket (8), a knob switch (9), a reset key (10), a USB interface (11) and a USB positioning plate (12).

7. The module testing tool of claim 6, wherein: the USB locating plate (12) is fixed with the rear vertical plate (4) through screws and is arranged into a concave structure (1201) to locate the position of the USB interface (11).

8. The module testing tool according to claim 1, wherein: the test board (7) is vertically inserted into a communication interface of the main control board (5), a DB50 communication socket is welded on the test board (7), and the test board is fixed on the front vertical board (3) through a DB50 bracket (18).

9. The module testing tool of claim 8, wherein: a second notch (1801) is formed in the middle of the DB50 bracket (18) and is used for fixing a DN50 communication socket on the test board (7).

10. The module testing fixture of claim 9, wherein: two sides of the DB50 bracket (18) are provided with U-shaped bending structures (1802), 4 screw columns (1803) are fixedly arranged, and the screw columns are fixed with the front vertical plate (3) through screws.