CN115308570A - Aging test equipment and test method for PCBA (printed circuit board assembly) - Google Patents

Abstract

The invention relates to the technical field of aging tests of PCBA boards, in particular to an aging test device of a PCBA board, which comprises a placing cylinder, wherein a heat insulation layer is fixedly connected to the inner side wall of the placing cylinder, four limit grooves are formed in the inner side wall of the heat insulation layer, heating holes and through line holes are formed in the side ends of the placing cylinder and the heat insulation layer, a lower side plate is fixedly connected to the lower end of the placing cylinder, a fixing head is fixedly connected to the middle of the lower end of the lower side plate, a connecting pipe is arranged at the side end of the lower side plate, an upper side plate is connected to the upper end of the placing cylinder in a threaded manner, a clamping pipe is fixedly connected to the middle of the upper end of the upper side plate, four control grooves are annularly arranged at the side end of the clamping pipe, a position adjusting mechanism is annularly arranged at the side end of the clamping pipe, the position adjusting mechanism is slidably connected with the control grooves, a PCBA board mounting box is arranged in the middle of the placing cylinder, and a drive plate of the PCBA board mounting box is of an arc-shaped structure.

Description

Aging test equipment and test method for PCBA (printed circuit board assembly)

Technical Field

The invention relates to the technical field of aging tests of PCBA boards, in particular to an aging test device and an aging test method of PCBA boards.

Background

The PCBA board is also called a printed circuit board, a support body of electronic elements, a provider for connecting electronic component circuits, and is manufactured by adopting an electronic printing technology. At present, when a PCBA board is produced in a processing factory, an aging test needs to be carried out on the PCBA board to ensure that a product is qualified. The aging test is generally to simulate the environment of external humidity and high temperature to test the finished PCBA board, and through the comprehensive actions of high temperature, low temperature, high and low temperature variation, electric power and the like, the defects of the functional board, such as poor welding, mismatching of element parameters, temperature drift and faults caused in the debugging process, are exposed so as to be removed, and the function board without defects can play a role in stabilizing parameters. Current aging testing all places the PCBA board on the ageing rack, and the PCBA board all exposes outside, and when needs high temperature test, the heat runs off comparatively seriously, and an aging testing needs the contrast group, need set up a plurality of ageing racks, leads to energy consumption great.

Disclosure of Invention

The invention aims to provide a device and a method for aging test of a PCBA board, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an aging testing equipment of PCBA board, is including placing a section of thick bamboo, fixedly connected with insulating layer on placing a section of thick bamboo's the inside wall, be equipped with four spacing grooves on the inside wall of insulating layer, the side of placing a section of thick bamboo and insulating layer is equipped with the heater hole and leads to the line hole, the lower extreme fixedly connected with downside plate of placing a section of thick bamboo, the fixed head of fixedly connected with in the middle of the lower extreme of downside plate, the side of downside plate is equipped with the connecting pipe, the upper end threaded connection who places a section of thick bamboo has the upside plate, fixedly connected with joint pipe in the middle of the upper end of upside plate, the side ring arrangement of joint pipe has four control grooves, the side ring arrangement of joint pipe has position control mechanism, position control mechanism and control groove sliding connection, the side of upside plate is equipped with the drive plate, the centre of placing a section of thick bamboo is equipped with PCBA board install bin, the side of PCBA board install bin is the arc structure, four mounting panels of side fixedly connected with of PCBA board, mounting bin sliding connection is in spacing inslot, the both sides of PCBA board install bin all are equipped with spacing fixed establishment, the both sides of PCBA board are equipped with two auxiliary gear adjusting grooves.

Preferably, the limiting and fixing mechanism is composed of an adjusting plate, a limiting block, limiting teeth, fixing teeth and a spring piece, the limiting teeth are arrayed at the side end of the adjusting plate, the fixing teeth are fixedly connected to the lower end of the limiting block, and the spring piece is fixedly connected to the upper end of the limiting block.

Preferably, the regulating plate is of an arc-shaped structure, guide grooves of the arc-shaped structure are formed in the two sides of the PCBA plate installation box, the regulating plate is connected in the guide grooves in a sliding mode, and the axis of the regulating plate and the axis of the guide grooves are on the same straight line.

Preferably, the limiting block is slidably connected into the adjusting groove, the adjusting groove is communicated with the guide groove, two sides of the spring piece are obliquely arranged, two sides of the spring piece are fixedly connected onto the inner wall of the adjusting groove, the side end of the fixed tooth is of an arc-shaped structure, and the fixed tooth is meshed with the limiting tooth.

Preferably, extrusion fixed establishment comprises mounting hole, extrusion post, spliced pole and rubber sleeve, extrusion fixed establishment is located the inside of PCBA board install bin, the mounting hole is located the side of regulating plate, spliced pole fixed connection is at the lower extreme of extrusion post, rubber sleeve fixed connection is on the lateral wall of extrusion post, the spliced pole is equipped with the external screw thread, the mounting hole is equipped with the internal thread, spliced pole and mounting hole threaded connection.

Preferably, an auxiliary plate is fixedly connected to a side end of the auxiliary gear, a top end of the auxiliary plate is fixedly connected with the adjusting plate, and the two auxiliary gears are in meshed connection.

Preferably, the upper end of the fixing head is of a columnar structure, the lower end of the fixing head is of a gyro-like structure, the lower end of the fixing head is inserted into the clamping pipe, the upper end of the fixing head is annularly provided with positioning blocks, and the positioning blocks are inserted into the control groove.

Preferably, the position adjusting mechanism is composed of a driving ring, a driving column, a clamping plate and an adjusting channel, wherein an inner side wall of the driving ring is provided with an inner thread, an outer side wall of the clamping pipe is provided with an outer thread, the driving ring is in threaded connection with the clamping pipe, the driving plate is fixedly connected with the driving ring, the clamping plate is in one-to-one correspondence with the control groove, and the clamping plate is in sliding connection with the control groove.

Preferably, the adjusting channel is arranged in the middle of the clamping plate, the adjusting channel is arranged in an inclined manner, the adjusting channel penetrates through the clamping plate, four driving columns are fixedly connected to the upper end of the driving ring, and the upper ends of the driving columns are located in the adjusting channel.

An aging test device of a PCBA board and a test method thereof are disclosed: the method comprises the following manufacturing steps:

the method comprises the following steps: placing the PCBA into the middle of the PCBA mounting box, and enabling the PCBA to be parallel to the side wall of the PCBA mounting box;

step two: connecting the connecting column with the mounting hole in a threaded manner, and extruding the auxiliary plate after the connection is completed, so that the adjusting plate slides in the guide groove, and the extruding column extrudes the side end of the PCBA plate to fix the PCBA plate;

step three: connecting the cable with the PCBA, placing the PCBA installation box into the placing cylinder, connecting the upper side plate with the placing cylinder through threads, heating the inside of the placing cylinder through the heating cylinder, and performing an aging test;

step four: if a plurality of PCBA boards need to be subjected to aging test at the same time, a plurality of placing cylinders are spliced together, and connecting pipes are inserted into the vent holes, so that the plurality of placing cylinders are communicated.

Compared with the prior art, the invention has the beneficial effects that:

1. when a high-temperature test is carried out, the heat insulation layer can prevent heat from being dissipated, so that the heat is accumulated in the placing cylinder, and the temperature required by the test can be more easily reached in the placing cylinder;

2. when a control group needs to be set, a plurality of placing cylinders are spliced together, so that the plurality of placing cylinders are communicated, heat can flow among the plurality of placing cylinders, the plurality of placing cylinders can quickly reach the temperature required by measurement, the energy consumption is reduced, the cost is reduced, the device is more economic, the device also meets the requirements of energy conservation and emission reduction of the present country, meanwhile, the temperature change inside the plurality of placing cylinders is the same, the measurement result is more accurate, and the error of the test result caused by the problem of a single installing cylinder is avoided.

Drawings

FIG. 1 is a schematic view of a device connection structure;

FIG. 2 is a schematic view of a connection structure of a PCBA board installation box;

FIG. 3 is an enlarged view of point A;

FIG. 4 is an enlarged view of point B;

FIG. 5 is a schematic view of an upper side plate connection structure;

fig. 6 is an enlarged schematic view of point C.

In the figure: the device comprises a placing barrel 1, a PCBA board mounting box 2, an upper side board 3, a lower side board 4, a heat insulation layer 5, a limiting groove 6, a fixing head 7, a connecting pipe 8, a vent hole 9, an auxiliary gear 10, an auxiliary board 101, a mounting board 11, a guide groove 12, an adjusting groove 13, a limiting fixing mechanism 14, an adjusting plate 141, a limiting block 142, a limiting tooth 143, a fixing tooth 144, a spring leaf 145, a clamping pipe 15, a positioning block 16, a driving board 17, an extrusion fixing mechanism 18, a mounting hole 181, an extrusion column 182, a connecting column 183, a rubber sleeve 184, a control groove 19, a position adjusting mechanism 20, a driving ring 201, a driving column 202, a clamping plate 203 and an adjusting channel 204.

Detailed Description

In order to further understand and appreciate the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described and illustrated in the drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments, and do not limit the embodiments in any way. 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. 1-6, the present invention provides a technical solution: an aging test device for PCBA boards comprises a placing barrel 1, a heat insulation layer 5 is fixedly connected on the inner side wall of the placing barrel 1, four limit grooves 6 are arranged on the inner side wall of the heat insulation layer 5, heating holes and through line holes are arranged at the side ends of the placing barrel 1 and the heat insulation layer 5, a lower side plate 4 is fixedly connected at the lower end of the placing barrel 1, a fixing head 7 is fixedly connected in the middle of the lower end of the lower side plate 4, a connecting pipe 8 is arranged at the side end of the lower side plate 4, an upper side plate 3 is in threaded connection with the upper end of the placing barrel 1, a clamping pipe 15 is fixedly connected in the middle of the upper end of the upper side plate 3, four control grooves 19 are annularly arranged at the side end of the clamping pipe 15, a position adjusting mechanism 20 is annularly arranged at the side end of the clamping pipe 15, the position adjusting mechanism 20 is in sliding connection with the control grooves 19, a driving plate 17 is arranged at the side end of the upper side plate 3, a PCBA board installation box 2 is arranged in the middle of the placing barrel 1, place the PCBA board into PCBA board install bin 2 in, PCBA board install bin 2 of difference is adopted to different PCBA boards, make can not take place to remove when fixing the PCBA board, the side of PCBA board install bin 2 is the arc structure, four mounting panels 11 of side fixedly connected with of PCBA board install bin 2, mounting panel 11 sliding connection is in spacing groove 6, the both sides of PCBA board install bin 2 all are equipped with spacing fixed establishment 14, the side of spacing fixed establishment 14 is equipped with extrusion fixed establishment 18, the both sides of PCBA board install bin 2 all rotate and are connected with two auxiliary gear 10, the both sides of PCBA board install bin 2 all are equipped with adjustment tank 13, when two are placed a section of thick bamboo 1 and link together, connecting pipe 8 pegs graft into air vent 9, make adjacent two place communicate between a section of thick bamboo 1, the heat can flow between placing a section of thick bamboo 1, ensure to place the heat change between a section of thick bamboo 1 the same.

The limiting and fixing mechanism 14 comprises an adjusting plate 141, a limiting block 142, limiting teeth 143, fixing teeth 144 and spring pieces 145, the limiting teeth 143 are arrayed at the side end of the adjusting plate 141, the fixing teeth 144 are fixedly connected to the lower end of the limiting block 142, the spring pieces 145 are fixedly connected to the upper end of the limiting block 142, the adjusting plate 141 is of an arc-shaped structure, guide grooves 12 of the arc-shaped structure are arranged on two sides of the PCBA plate mounting box 2, the adjusting plate 141 is slidably connected in the guide grooves 12, the axis of the adjusting plate 141 and the axis of the guide grooves 12 are on the same straight line, the limiting block 142 is slidably connected in the adjusting grooves 13, the adjusting grooves 13 are communicated with the guide grooves 12, two sides of the spring pieces 145 are obliquely arranged, two sides of the spring pieces 145 are fixedly connected to the inner wall of the adjusting grooves 13, the side end of the fixing teeth 144 is of the arc-shaped structure, and the fixing teeth 144 are meshed with the limiting teeth 143, the side end of auxiliary gear 10 is fixedly connected with auxiliary plate 101, the top end of auxiliary plate 101 is fixedly connected with adjusting plate 141, two auxiliary gears 10 are meshed and connected, after the PCBA is placed into PCBA board installation box 2, auxiliary plate 101 is rotated, through the meshing transmission of two auxiliary gears 10, two auxiliary plates 101 are driven to move simultaneously, auxiliary plate 101 drives adjusting plate 141 to slide in guide groove 12, limiting teeth 143 extrude limiting block 142 upwards, spring pieces 145 deform and accumulate force, extruding fixing mechanism 18 extrudes and fixes the PCBA, at the moment, under the action of spring pieces 145, limiting block 142 moves downwards, fixing teeth 144 and limiting teeth 143 are clamped together, limiting and fixing is carried out on adjusting plate 141, and the PCBA is prevented from moving during aging testing.

Extrusion fixed establishment 18 is by mounting hole 181, extrusion post 182, spliced pole 183 and rubber sleeve 184 are constituteed, extrusion fixed establishment 18 is located the inside of PCBA board install bin 2, mounting hole 181 is located regulating plate 141's side, spliced pole 183 fixed connection is at the lower extreme of extrusion post 182, rubber sleeve 184 fixed connection is on the lateral wall of extrusion post 182, spliced pole 183 is equipped with the external screw thread, mounting hole 181 is equipped with the internal thread, spliced pole 183 and mounting hole 181 threaded connection, after the installation of PCBA board, will extrude fixed establishment 18 and link together with regulating plate 141, extrusion post 182 extrudees fixedly to the PCBA board, rubber sleeve 184 can avoid damaging the PCBA board.

The upper end of the fixed head 7 is of a columnar structure, the lower end of the fixed head 7 is of a gyroscope-like structure, the lower end of the fixed head 7 is inserted into the clamping tube 15, positioning blocks 16 are annularly arranged at the upper end of the fixed head 7, the positioning blocks 16 are inserted into the control groove 19, the position adjusting mechanism 20 comprises a driving ring 201, driving columns 202, clamping plates 203 and adjusting channels 204, inner side walls of the driving ring 201 are provided with internal threads, outer side walls of the clamping tubes 15 are provided with external threads, the driving ring 201 is in threaded connection with the clamping tubes 15, the driving plate 17 is fixedly connected with the driving ring 201, the clamping plates 203 are in one-to-one correspondence with the control groove 19, the clamping plates 203 are in sliding connection with the control groove 19, the adjusting channels 204 are arranged at the middle positions of the clamping plates 203, the adjusting channels 204 are obliquely arranged, the adjusting channels 204 penetrate through the clamping plates 203, the upper end of the driving ring 201 is fixedly connected with the four driving columns 202, the upper ends of the driving columns 202 are located in the adjusting channels 204, the driving ring is driven to rotate by the driving ring through the driving ring, the driving ring to move on the clamping tubes, the driving ring to enable the driving ring to move, the driving ring to enable the driving ring to extrude the lower ends of the fixed head 7 together, and enable the fixing tube to extrude the mounting tube 1.

An aging test device of a PCBA board and a test method thereof are disclosed: the method comprises the following manufacturing steps:

the method comprises the following steps: placing the PCBA into the middle of the PCBA mounting box 2, and enabling the PCBA to be parallel to the side wall of the PCBA mounting box 2;

step two: the connecting column 183 is connected with the mounting hole 181 in a threaded manner, and after the connection is completed, the auxiliary plate 101 is extruded, so that the adjusting plate 141 slides in the guide groove 12, and the extruding column 182 extrudes the side end of the PCBA to fix the PCBA;

step three: connecting a cable with a PCBA board, placing a PCBA board installation box 2 into a placing cylinder 1, connecting an upper side plate 3 with the placing cylinder 1 through threads, heating the inside of the placing cylinder 1 through a heating cylinder, and performing an aging test;

step four: if a plurality of PCBA boards need to be subjected to aging test at the same time, a plurality of placing cylinders 1 are spliced together, and connecting pipes 8 are inserted into the vent holes 9, so that the placing cylinders 1 are communicated.

While embodiments of the invention have been shown and described, it is emphasized that: the above description is presented only by way of example of use of an embodiment of the invention and is not intended to limit the invention in any way. It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an aging testing equipment of PCBA board, is including placing a section of thick bamboo, its characterized in that: the utility model discloses a gear box, including a placing section of thick bamboo, fixedly connected with insulating layer on the inside wall of placing a section of thick bamboo, be equipped with four spacing grooves on the inside wall of insulating layer, the side of placing a section of thick bamboo and insulating layer is equipped with the heating hole and leads to the line hole, place the lower extreme fixedly connected with lower plate of a section of thick bamboo, fixedly connected with fixed head in the middle of the lower extreme of lower plate, the side of lower plate is equipped with the connecting pipe, the upper end threaded connection of placing a section of thick bamboo has the upper plate, fixedly connected with joint pipe in the middle of the upper end of upper plate, the side ring arrangement of joint pipe has four control grooves, the side ring arrangement of joint pipe has position control mechanism, position control mechanism and control groove sliding connection, the side of upper plate is equipped with the drive plate, the centre of placing a section of thick bamboo is equipped with PCBA board install bin, the side of PCBA board install bin is the arc structure, four mounting panels of side fixedly connected with of PCBA board install bin, mounting panel sliding connection is in the spacing inslot, the both sides of PCBA board install bin all are equipped with spacing fixed establishment, the side of PCBA board is equipped with extrusion fixed establishment, PCBA board.

2. The burn-in apparatus of a PCBA board as recited in claim 1, wherein: the limiting and fixing mechanism is composed of a regulating plate, a limiting block, limiting teeth, fixing teeth and a spring piece, the limiting teeth are arrayed at the side end of the regulating plate, the fixing teeth are fixedly connected to the lower end of the limiting block, and the spring piece is fixedly connected to the upper end of the limiting block.

3. The burn-in apparatus of a PCBA board as recited in claim 2, wherein: the regulating plate is of an arc-shaped structure, guide grooves of the arc-shaped structure are arranged on two sides of the PCBA board mounting box, the regulating plate is connected in the guide grooves in a sliding mode, and the axis of the regulating plate and the axis of the guide grooves are on the same straight line.

4. The burn-in apparatus of a PCBA board as recited in claim 2, wherein: the limiting block is connected in the adjusting groove in a sliding mode, the adjusting groove is communicated with the guide groove, two sides of the spring piece are arranged in an inclined mode, two sides of the spring piece are fixedly connected to the inner wall of the adjusting groove, the side end of the fixed tooth is of an arc-shaped structure, and the fixed tooth is connected with the limiting tooth in a meshed mode.

5. The burn-in apparatus of a PCBA board as recited in claim 1, wherein: extrusion fixed establishment comprises mounting hole, extrusion post, spliced pole and rubber sleeve, extrusion fixed establishment is located the inside of PCBA board install bin, the mounting hole is located the side of regulating plate, spliced pole fixed connection is at the lower extreme of extrusion post, rubber sleeve fixed connection is on the lateral wall of extrusion post, the spliced pole is equipped with the external screw thread, the mounting hole is equipped with the internal thread, spliced pole and mounting hole threaded connection.

6. The burn-in apparatus of a PCBA board as recited in claim 1, wherein: the auxiliary gear is characterized in that an auxiliary plate is fixedly connected to the side end of the auxiliary gear, the top end of the auxiliary plate is fixedly connected with an adjusting plate, and the two auxiliary gears are in meshed connection.

7. The burn-in apparatus of a PCBA board as recited in claim 1, wherein: the upper end of the fixing head is of a columnar structure, the lower end of the fixing head is of a gyro-like structure, the lower end of the fixing head is inserted into the clamping pipe, the upper end of the fixing head is annularly provided with positioning blocks, and the positioning blocks are inserted into the control groove.

8. The burn-in apparatus of a PCBA board as recited in claim 1, wherein: the position adjusting mechanism is composed of a driving ring, a driving column, a clamping plate and an adjusting channel, wherein the inner side wall of the driving ring is provided with an internal thread, the outer side wall of the clamping pipe is provided with an external thread, the driving ring is in threaded connection with the clamping pipe, the driving ring is fixedly connected with the driving ring, the clamping plate corresponds to the control groove one by one, and the clamping plate is in sliding connection with the control groove.

9. The burn-in apparatus of a PCBA board as recited in claim 8, wherein: the adjusting channel is arranged in the middle of the clamping plate and is obliquely arranged, the adjusting channel penetrates through the clamping plate, four driving columns are fixedly connected to the upper end of the driving ring, and the upper ends of the driving columns are located in the adjusting channel.

10. A burn-in apparatus and method for testing a PCBA board as claimed in any one of claims 1-9: the method is characterized in that: the method comprises the following manufacturing steps:

the method comprises the following steps: placing the PCBA into the middle of the PCBA mounting box, and enabling the PCBA to be parallel to the side wall of the PCBA mounting box;

step two: connecting the connecting column with the mounting hole in a threaded manner, and extruding the auxiliary plate after the connection is completed, so that the adjusting plate slides in the guide groove, and the extruding column extrudes the side end of the PCBA plate to fix the PCBA plate;

step three: connecting the cable with the PCBA, placing the PCBA installation box into the placing cylinder, connecting the upper side plate with the placing cylinder through threads, heating the inside of the placing cylinder through the heating cylinder, and performing an aging test;

step four: if a plurality of PCBA boards need to be subjected to aging test at the same time, a plurality of placing cylinders are spliced together, and connecting pipes are inserted into the vent holes, so that the plurality of placing cylinders are communicated.

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