CN212693186U

CN212693186U - Positive and negative pressure air tightness detection device suitable for vehicle wire harness

Info

Publication number: CN212693186U
Application number: CN202022090324.2U
Authority: CN
Inventors: 刘云龙; 张强; 付盼盼; 张全斌
Original assignee: Hebi Tianhai Global Electrical Appliance Co ltd
Current assignee: Hebi Tianhai Global Electrical Appliance Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-03-12
Anticipated expiration: 2030-09-22

Abstract

The utility model provides a be applicable to the airtight detection device of positive and negative pressure of vehicle pencil for solve traditional airtight detection device of car pencil structure more complicated, manufacturing cost is high, the operation is comparatively loaded down with trivial details, and detect technical problem such as accuracy difference. The utility model comprises a central control display unit, an airtight vacuum barrel and a test container for accommodating the wires to be tested, wherein the central control display unit comprises a shell, a controller and a vacuum pump are respectively arranged in the shell, the airtight vacuum barrel is connected with the vacuum pump, and the airtight vacuum barrel is connected with the wires to be tested in the test container in a replaceable way; the airtight vacuum barrel is connected with an air pressure monitoring unit, and the air pressure monitoring unit is connected with a controller. The utility model has the advantages of simple integral structure, the theory of operation is clear, the simple operation, it is high to detect the accuracy, and whole positive and negative compressed air is close the testing process and is controlled by well accuse display element, and the testing process is intelligent, automatic, can satisfy the test demand of car wiring harness well.

Description

Positive and negative pressure air tightness detection device suitable for vehicle wire harness

Technical Field

The utility model relates to a vehicle pencil processing technology field, concretely relates to be applicable to positive and negative airtight detection device that presses of vehicle pencil.

Background

Along with the increase of the intelligent development trend of automobiles and the high importance of the nation on the safety of automobiles, the requirements of the automobile electronic and electrical industry on the production quality of automobile wire harnesses are higher and higher. Particularly, in the growing new energy automobiles, electric power becomes the main energy of automobile kinetic energy, automobile wire harnesses are the key parts of the automobiles, the performances of air tightness, conduction (short circuit and open circuit), pulling force and the like of the automobile wire harnesses must be qualified, and otherwise, the automobiles cannot be normally used directly. Traditional airtight detection device of car pencil structure is more complicated, and manufacturing cost is high, and positive negative pressure conversion needs staff manual operation when carrying out positive negative pressure airtight detection to the pencil, and detects the accuracy poor, and the function is single, can't satisfy people's present user demand.

SUMMERY OF THE UTILITY MODEL

To airtight detection device structure of traditional car pencil more complicated, manufacturing cost is high, the operation is comparatively loaded down with trivial details, and detect technical problem such as accuracy difference, the utility model provides a be applicable to the positive and negative airtight detection device that pressurizes of vehicle pencil realizes that whole positive and negative airtight testing process that pressurizes is controlled by well accuse display element, and the testing process is intelligent, automatic, and overall structure is simple, and the theory of operation is clear, and the simple operation detects the accuracy height, can satisfy the test demand of car pencil well.

In order to solve the technical problem, the utility model discloses a following technical scheme: the device comprises a central control display unit, an airtight vacuum barrel and a test container for accommodating a wire to be tested, wherein the central control display unit comprises a shell, a controller and a vacuum pump are respectively arranged in the shell, the airtight vacuum barrel is connected with the vacuum pump, and the airtight vacuum barrel is connected with the wire to be tested in the test container in a replaceable manner; the airtight vacuum barrel is connected with an air pressure monitoring unit, and the air pressure monitoring unit is connected with a controller.

The airtight vacuum barrel is connected with the vacuum pump through a first air duct, a pneumatic quick-plug connector is arranged at one end, connected with the vacuum pump, of the first air duct, a socket matched with the pneumatic quick-plug connector is arranged on the vacuum pump, and the pneumatic quick-plug connector is plugged in the socket.

The airtight vacuum barrel is connected with a wire to be tested in the test container through a second air duct, and a wire harness quick-change connector is arranged at one end, connected with the wire to be tested, of the second air duct.

The air pressure monitoring unit is an air pressure sensor, the air pressure sensor is installed on the shell and communicated with the first air duct, and the air pressure sensor is connected with the controller.

The first air duct is provided with an electromagnetic valve, and the electromagnetic valve is connected with the controller.

And the shell is provided with a touch display screen, and the touch display screen is connected with the controller.

By adopting the structure, the utility model has the advantages that the lead to be tested is placed in the testing container and is matched with the airtight vacuum barrel for pressure maintaining and solution separation, the air pressure change in the airtight vacuum barrel is detected in real time by the air pressure sensor and is transmitted to the controller, and then the air pressure change is fed back to the display screen by the controller, so that the lead to be tested is convenient for the manager to check; the whole detection process is controlled by the central control display unit, and the intellectualization and automation of the test process are realized. The utility model has the advantages of simple integral structure, the theory of operation is clear, the simple operation, it is high to detect the accuracy, can satisfy the airtight test demand of resistance of car pencil well, has very strong practicality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the internal structure of the central control display unit of the present invention.

In the figure, 1 is a central control display unit, 2 is an air pressure sensor, 3 is an airtight vacuum barrel, 4 is an electromagnetic valve, 6 is a test container, 7 is a vacuum pump, 8 is a first air duct, 9 is a second air duct, 10 is a wire harness quick-change connector, 11 is a shell, and 12 is a touch display screen.

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 in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the utility model provides a be applicable to airtight detection device of vehicle pencil positive and negative pressure, including well accuse display element 1, airtight vacuum bucket 3 with be used for holding the test container 6 of the wire that awaits measuring, wherein well accuse display element 1 is used for parameter setting, state display and management and control pencil test start and start etc. airtight vacuum bucket 3 is used for pressurize and solution separation in order to improve the accuracy that pencil gas tightness detected, contains sodium chloride test solution in the test container 6 in order to be used for providing test environment to the pencil that awaits measuring. Well accuse display element 1 includes casing 11, is equipped with vacuum pump 7 in the casing 11, airtight vacuum bucket 3 is connected with vacuum pump 7, and the wire that awaits measuring in airtight vacuum bucket 3 and the test container 6 is removable to be connected, put into the test container who contains sodium chloride solution with the wire that awaits measuring during the test, and utilize the air duct to communicate with airtight vacuum bucket the wire that awaits measuring in with the test container, then communicate airtight vacuum bucket and vacuum pump 7 again, atmospheric pressure in the airtight vacuum bucket can be controlled through vacuum pump 7, realize that airtight vacuum bucket 3 can carry out the pressurize to the pencil that awaits measuring, and separate out the test solution that gets into in the wire that awaits measuring.

Still be equipped with the controller in the casing 11, the model of this controller is STM32F103C8T6, and the controller is connected with 220V alternating current power supply for supply power for whole device. Be equipped with touch display screen 12 on the casing 11, and touch display screen 12 is connected with the controller through the electrical apparatus circuit in the casing, can realize human-computer interaction, and staff's accessible touch display screen 12 sends control instruction to the controller, including parameter setting, status inquiry etc. to guarantee whole testing process's normal operating.

Further, airtight vacuum bucket 3 and vacuum pump 7 are connected through first air duct 8, and the one end that vacuum pump 7 is connected to first air duct 8 is equipped with pneumatic quick connector, be equipped with on vacuum pump 7 with pneumatic quick connector assorted socket, pneumatic quick connector is pegged graft in the socket, easy operation, convenient to use. The wire to be tested in the airtight vacuum barrel 3 and the test container 6 is connected through a second air duct 9, a wire harness quick-change connector 10 is arranged at one end, connected with the wire to be tested, of the second air duct 9, and the wire harness quick-change connector 10 is a waterproof connector and used for being connected with a wire harness to be tested. In this embodiment, the wire harness quick-change connector 10 includes connectors of different models to cover the diameter sizes of different wire harnesses to be tested, so as to meet the use requirements of the different wire harnesses to be tested.

The airtight vacuum barrel 3 is connected with an air pressure monitoring unit, the air pressure monitoring unit is connected with a controller, and the air pressure monitoring unit is used for monitoring the air pressure change in the airtight vacuum barrel 3 in real time and transmitting the air pressure change to the controller. In this embodiment, the atmospheric pressure monitoring unit is baroceptor 2, and its model is PX409, and baroceptor 2 installs on casing 11 and communicates first air duct 8 for the atmospheric pressure change in the airtight vacuum bucket 3 of real-time supervision, baroceptor 2 is connected with the controller through the electrical apparatus circuit in the casing, and the controller receives the atmospheric pressure change signal that baroceptor 2 detected and feeds back to on the touch display screen. The first air duct 8 is provided with electromagnetic valves 4, the number of the electromagnetic valves 4 can be set according to actual use requirements, the electromagnetic valves 4 are connected with a controller, the state of the electromagnetic valves 4 can be controlled through the controller to control communication between the airtight vacuum barrel 3 and the vacuum pump 7 and adjust air pressure change in the airtight vacuum barrel 3, then the air pressure sensor 2 monitors the air pressure value in the airtight vacuum barrel 3 in real time and transmits the air pressure value to the controller, a worker sets parameters through the touch display screen 12 and sends the parameters to the controller, and the controller compares the received air pressure value detected by the air pressure sensor 2 with preset parameters to detect the air tightness of the wiring harness; meanwhile, the controller transmits the received air pressure change signal to the touch display screen, so that the operator can conveniently check the air pressure change signal.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a be applicable to positive and negative pressure airtight detection device of vehicle pencil which characterized in that: the device comprises a central control display unit (1), an airtight vacuum barrel (3) and a test container (6) for containing a wire to be tested, wherein the central control display unit (1) comprises a shell (11), a controller and a vacuum pump (7) are respectively arranged in the shell (11), the airtight vacuum barrel (3) is connected with the vacuum pump (7), and the airtight vacuum barrel (3) is in replaceable connection with the wire to be tested in the test container (6); the airtight vacuum barrel (3) is connected with an air pressure monitoring unit, and the air pressure monitoring unit is connected with a controller.

2. The positive and negative pressure air tightness detection device suitable for the vehicle wiring harness according to claim 1, characterized in that: airtight vacuum bucket (3) and vacuum pump (7) are connected through first air duct (8), and the one end that vacuum pump (7) were connected in first air duct (8) is equipped with pneumatic quick connector, be equipped with on vacuum pump (7) with pneumatic quick connector assorted socket, pneumatic quick connector is pegged graft in the socket.

3. The positive and negative pressure air tightness detection device suitable for the vehicle wiring harness according to claim 1 or 2, characterized in that: the wire to be tested in the airtight vacuum barrel (3) and the test container (6) is connected through a second air duct (9), and one end of the second air duct (9) connected with the wire to be tested is provided with a wire harness quick-change connector (10).

4. The positive and negative pressure air tightness detection device suitable for the vehicle wiring harness according to claim 3, characterized in that: the air pressure monitoring unit is an air pressure sensor (2), the air pressure sensor (2) is installed on the shell (11) and communicated with the first air duct (8), and the air pressure sensor (2) is connected with the controller.

5. The positive and negative pressure air tightness detection device suitable for the vehicle wiring harness according to claim 2 or 4, characterized in that: and the first air duct (8) is provided with an electromagnetic valve (4), and the electromagnetic valve (4) is connected with the controller.

6. The positive and negative pressure air tightness detection device suitable for the vehicle wiring harness according to claim 5, characterized in that: and a touch display screen (12) is arranged on the shell (11), and the touch display screen (12) is connected with the controller.