CN214096524U

CN214096524U - Control module casing airtightness testing device

Info

Publication number: CN214096524U
Application number: CN202120277110.8U
Authority: CN
Inventors: 张继光; 沈平; 侯树祥
Original assignee: Jiaxing Boyuan Electronic Technology Co ltd
Current assignee: Jiaxing Boyuan Electronic Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-08-31
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a control module shell airtightness testing device, which comprises a testing part and a driving part, wherein the testing part comprises a testing box, the side wall of the testing box is provided with a testing window, and a testing base and a lifting assembly are arranged in the testing box; the lifting assembly comprises a linear module, a lower pressing plate and a plurality of guide rods, wherein the lower pressing plate is fixed at the movable end of the linear module and is parallel to the testing base; the guide rods are fixed between the upper wall surface and the lower wall surface of the testing part; the linear module penetrates through and is fixed on the upper wall surface of the testing part; the upper part of the lower pressing plate is connected with a pressure sensor, and the pressure sensor is fixedly connected with the movable end of the linear module; the base of the test box is provided with a through hole, and the side wall of the test box is provided with an air vent. The utility model discloses can carry out the gas tightness to the control module casing fast and detect, it is fast, efficient, and follow-up operating procedure is simpler.

Description

Control module casing airtightness testing device

Technical Field

The utility model relates to a control module casing test technical field especially relates to airtight test equipment of control module casing.

Background

One or more connectors are typically provided on the housing of the controller (e.g., antenna, vehicle-mounted controller, etc.) for mating with the contacts of the transmission line to effect data connection of the body to other electronic devices. In order to ensure normal and stable operation in special weather (such as precipitation and humid weather) and exert normal energy for electronic equipment, the shell of the controller is often required to have high sealing performance and needs to be subjected to sealing performance detection. For example, the shell of the automobile controller needs to reach the protection level of IP67 and above, the controller is ensured to run stably and not to be interfered by external factors, the driving safety is improved, and the tightness detection is a necessary link for automobile controller manufacturers.

However, in the prior art, the detection before and after the controller shell is sealed mainly passes deep water detection, and the controller shell is often dried before shipment, defective products are easy to scrap during testing, the process continuity is poor, and the detection time is long.

In combination with the above situation, the company develops the air tightness testing tool which is simple and convenient to operate and can realize semi-automatic or full-automatic testing of the controller shell under different conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the poor problem of control module casing gas tightness detection effect among the prior art, and the airtight test equipment of control module casing that proposes.

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

the control module shell airtightness testing device comprises a testing part and a driving part, wherein the testing part comprises a testing box, the side wall of the testing box is provided with a testing window, and a testing base and a lifting assembly are arranged in the testing box;

the lifting assembly comprises a linear module, a lower pressing plate and a plurality of guide rods, wherein the lower pressing plate is fixed at the movable end of the linear module and is parallel to the testing base; the guide rods are fixed between the upper wall surface and the lower wall surface of the testing part; the linear module penetrates through and is fixed on the upper wall surface of the testing part.

And the upper part of the lower pressing plate is connected with a pressure sensor, and the pressure sensor is fixedly connected with the movable end of the linear module.

The base of the test box is provided with a through hole, the side wall of the test box is provided with an air vent, the air vent is communicated with the through hole in a sealing mode, and the driving portion is connected with the air vent.

The base of the test box is embedded with a rubber ring, and the through hole is located in the rubber ring.

The driving part comprises an air source, the air source is connected with a pipeline between the air holes, and a pressure regulating assembly, a first quick-charging valve, an air storage tank, a second quick-charging valve and a differential pressure transmitter are sequentially connected onto the pipeline from the air source.

Preferably, the pipeline is further provided with an exhaust valve, and the exhaust valve is located between the second quick charge valve and the differential pressure transmitter.

Preferably, the pressure regulating assembly comprises a filtering pressure regulating valve and a precision pressure regulating valve, and the filtering pressure regulating valve is positioned between the precision pressure regulating valve and the air source.

Preferably, the pressure regulating range of the pressure regulating assembly is 0.4-0.6 MPa.

Preferably, the side wall of the lower end of the lower pressing plate is wrapped with a detachable protection pad.

Preferably, the lateral wall that gets the material mouth is kept away from to the test box has seted up the access hole, the lateral wall of test box rotates through a plurality of rotation pieces and is connected with the chamber door that corresponds with the access hole, install the latch fitting on the chamber door.

Compared with the prior art, the beneficial effects of the utility model are that:

1. whether the module to be detected is in a sealed state or not can be measured through the change of gas pressure, the detection process is simple and quick to operate, water is not required to enter for neutralization and drying, the detection steps are greatly simplified, the detection efficiency is improved, defective products are prevented from being scrapped, the efficiency of secondary processing of products is guaranteed, the whole work can be continuously carried out, the continuity is good, and the detection time is short;

2. through the cooperation of filtering air-vent valve and accurate air-vent valve, can guarantee the accuracy and the stability of detection pressure, guarantee the accuracy of inspection result then, in addition, can alleviate the extrusion collision that clamp plate and control module casing received through the protection pad, protect the safety of control module casing.

Drawings

Fig. 1 is a schematic perspective view of a testing portion of an air tightness testing device for a control module casing according to the present invention;

FIG. 2 is a schematic view of a connection structure of a lower pressing plate and a guide rod;

fig. 3 is a schematic front cross-sectional view of the airtightness testing apparatus for a control module casing according to the present invention;

fig. 4 is a schematic right-side cross-sectional view of the airtightness testing apparatus for a control module casing according to the present invention;

fig. 5 is a rear side view of the air tightness testing device for the control module casing according to the present invention;

FIG. 6 is a schematic view of a connection structure of the driving part;

in the figure: the device comprises a test part 1, a test box 11, a test window 12, a test base 13, a lifting assembly 14, a linear module 141, a pressing plate 142, a guide rod 143, a pressure sensor 15 and a rubber ring 16;

2, a driving part, 21 air sources, 22 pipelines, 23 pressure regulating assemblies, 231 filtering pressure regulating valves, 232 precision pressure regulating valves, 24 quick charging valves I, 25 air storage tanks, 26 quick charging valves II, 27 differential pressure transmitters and 28 exhaust valves;

3. a protection pad;

4. a box door and 5 locking pieces.

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.

Referring to fig. 1-6, the air tightness testing device comprises a testing part 1 and a driving part 2, wherein the testing part 1 comprises a testing box 11, a testing window 12 is arranged on the side wall of the testing box 11, and a testing base 13 and a lifting assembly 14 are arranged in the testing box 11;

the lifting assembly 14 comprises a linear module 141, a lower pressing plate 142 fixed at the movable end of the linear module 141 and parallel to the testing base 13, and a plurality of guide rods 143 movably connected with the lower pressing plate 142 and arranged in parallel; a plurality of guide rods 143 are fixed between the upper wall surface and the lower wall surface of the test part 1; the linear module 141 is fixed to the upper wall surface of the test section 1.

The upper portion of the lower pressing plate 142 is connected with a pressure sensor 15, and the pressure sensor 15 is fixedly connected with the movable end of the linear module 141.

The base of the test box 11 is provided with a through hole, the side wall of the test box 11 is provided with an air vent, the air vent is communicated with the through hole in a sealing mode, and the driving portion 2 is connected with the air vent.

The base of the test box 11 is embedded with a rubber ring 16, and the through hole is positioned in the rubber ring 16.

The driving part 2 comprises an air source 21, a pipeline 22 is connected between the air source 21 and the vent hole, and a pressure regulating assembly 23, a first quick-charging valve 24, an air storage tank 25, a second quick-charging valve 26 and a differential pressure transmitter 27 are sequentially connected to the pipeline 22 from the air source 21.

And an exhaust valve 28 is also arranged on the pipeline 22, and the exhaust valve 28 is positioned between the second quick charging valve 26 and the differential pressure transmitter 27.

The pressure regulating assembly 23 includes a filtering pressure regulating valve 231 and a precision pressure regulating valve 232, the filtering pressure regulating valve 231 being located between the precision pressure regulating valve 232 and the gas source 21.

The pressure regulating range of the pressure regulating component 23 is 0.4-0.6 MPa.

The lower end side wall of the lower pressing plate 142 is wrapped with a detachable protection pad 3.

The access hole has been seted up to the lateral wall that test box 11 kept away from and got the material mouth, and the lateral wall of test box 11 rotates through a plurality of rotations and is connected with chamber door 4 that corresponds with the access hole, installs latch fitting 5 on chamber door 4.

When the utility model is used, a module to be tested is placed in the rubber ring 16, then the linear module 141 drives the lower pressing plate 142 to move downwards, the movable plate can extrude the rubber ring 16, a closed cavity is formed among the testing module, the rubber ring 16 and the lower pressing plate 142, the pressure sensor 15 can measure the pressure, when a certain pressure is applied, the linear module 141 automatically stops, and the module to be tested is pressed, then the testing part 1 is started, the air source 21 is regulated to 0.4-0.6MPa by the pressure regulating component 23, and reaches the air storage tank 25 through the first quick charging valve 24, enters the vent hole through the second quick charging valve 26, keeps the pressurization state of the inflation hole, when the charge port pressure (as sensed by differential pressure transmitter 27) exceeds the specified pressure, excess gas is vented through vent valve 28, and vent valve 28 is plumbed directly to atmosphere (e.g., opposite the operator end) for safety.

When the pressure is stable, closing the valve, and maintaining the pressure of the closed cavity, wherein if the pressure does not change, the sealing property of the module to be tested is good; during operation, the through holes cannot be blocked.

Through the change of gas pressure, can measure whether module to be measured is in sealed state, testing process easy operation is swift to needn't get into the aquatic and dry, simplified the testing procedure greatly, improve detection efficiency, avoid the defective products to scrap in addition, guarantee the product secondary and add efficiency man-hour, whole work can go on in succession moreover, and the continuity is good, and check-out time is short.

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. The control module shell airtightness testing device comprises a testing part (1) and a driving part (2), and is characterized in that the testing part (1) comprises a testing box (11), a testing window (12) is formed in the side wall of the testing box (11), and a testing base (13) and a lifting assembly (14) are arranged in the testing box (11);

the lifting assembly (14) comprises a linear module (141), a lower pressing plate (142) which is fixed at the movable end of the linear module (141) and is parallel to the testing base (13), and a plurality of guide rods (143) which are movably connected with the lower pressing plate (142) and are arranged in parallel; the guide rods (143) are fixed between the upper wall surface and the lower wall surface of the testing part (1); the linear module (141) penetrates through and is fixed on the upper wall surface of the testing part (1);

the upper part of the lower pressing plate (142) is connected with a pressure sensor (15), and the pressure sensor (15) is fixedly connected with the movable end of the linear module (141);

a through hole is formed in the base of the test box (11), an air vent is formed in the side wall of the test box (11), the air vent is communicated with the through hole in a sealing mode, and the driving part (2) is connected with the air vent;

a rubber ring (16) is embedded in the base of the test box (11), and the through hole is positioned in the rubber ring (16);

drive division (2) include air supply (21), air supply (21) with be connected with pipeline (22) between the air vent, pipeline (22) are gone up and are begun to be connected gradually pressure regulating subassembly (23), fill valve (24), gas holder (25), fill valve two (26) and differential pressure transmitter (27) soon from air supply (21).

2. The control module housing tightness test device according to claim 1, characterized in that an exhaust valve (28) is further provided on the pipe (22), the exhaust valve (28) being located between the second quick-charge valve (26) and the differential pressure transmitter (27).

3. The control module housing air-tightness testing device according to claim 1, characterized in that said pressure regulating assembly (23) comprises a filtering pressure regulating valve (231) and a precision pressure regulating valve (232), said filtering pressure regulating valve (231) being located between the precision pressure regulating valve (232) and the air supply (21).

4. The control module housing tightness test device according to claim 1, characterized in that the pressure regulating assembly (23) has a pressure regulating range of 0.4-0.6 MPa.

5. The control module housing airtightness testing apparatus according to claim 1, wherein the lower end side wall of the lower pressure plate (142) is wrapped with a detachable protective pad (3).

6. The airtightness testing apparatus for the control module casing according to claim 1, wherein an access opening is formed in a side wall of the testing box (11) far from the material taking opening, a box door (4) corresponding to the access opening is rotatably connected to the side wall of the testing box (11) through a plurality of rotating members, and a locking member (5) is installed on the box door (4).