A hydrochloric acid corrosion test box for electronic components

Abstract

The invention discloses a hydrochloric acid corrosion test box for electronic components in the technical field of electronic component testing. The box comprises a box body, a waste liquid storage box is arranged at the bottom of one side of the inner cavity of the box body, a limiting component is arranged on the inner cavity of the box body adjacent to the top side wall of the inner cavity of the waste liquid storage box, and a salt spray proportioning component is arranged on the inner cavity of the box body adjacent to the top side wall of the inner cavity of the limiting component, and a transparent observation door is arranged on one side of the outer wall of the box body. The invention facilitates automatic proportioning of hydrochloric acid and water through the salt spray proportioning component, thereby improving the operating efficiency of the hydrochloric acid corrosion test, and the limiting component facilitates limiting the electronic components of different sizes, thereby avoiding movement during salt spray spraying and causing uneven spraying.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic component testing, in particular to a hydrochloric acid corrosion test box for electronic components. Background Art

[0002] Most of the salt spray corrosion test equipment simulates the salt mist diffused marine climate composed of tiny salt droplets in the atmosphere. It is widely used in electronics, electrical engineering and automobiles to accelerate the change of corrosion performance and conduct salt spray corrosion tests on the whole or protective layer. However, the ratio of hydrochloric acid and water needs to be manually mixed. The efficiency of hydrochloric acid corrosion test is low, and it is not convenient to limit the electronic components of different sizes to avoid movement in the salt spray spray, resulting in uneven spraying.

[0003] According to the authorization publication number CN212301250U, a composite cycle corrosion test box with spraying is disclosed. By connecting the power of the motor and the salt spray generating device, the salt spray generating device further transports the generated salt spray into the annular tube of the first spraying device and the annular tube of the second spraying device through the second tube body and the first tube body, and further the salt spray is sprayed through the hose and the spray head and falls on the tested object. Further, while the spray head sprays the salt spray, the rotating shaft of the motor drives the first connecting rod to rotate, and further drives the rotating block to rotate. Further, the rotating block repeatedly presses and releases one end of the third connecting rod during rotation. When the rotating block and the third connecting rod are pressed, the third connecting rod drives the spray head to move toward one end of the through groove. When the rotating block does not press the third connecting rod, the tension spring drives the third connecting rod and the spray head to move toward the direction of the circular hole while resetting, until the rotating block presses the third connecting rod again, thereby realizing the adjustment of the spray position and angle of the spray head, making the spray effect more uniform.

[0004] The above patent realizes the function of uniform salt spray, but the ratio of hydrochloric acid and water needs to be manually mixed, the efficiency of hydrochloric acid corrosion test is low, and it is not convenient to limit the electronic components of different sizes to avoid movement in the salt spray, resulting in uneven spraying. For this reason, we propose a hydrochloric acid corrosion test box for electronic components. Summary of the invention

[0005] The object of the present invention is to provide a hydrochloric acid corrosion test box for electronic components to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrochloric acid corrosion test box for electronic components, comprising a box body, a waste liquid storage box is arranged at the bottom of one side of the inner cavity of the box body, and a limiting component is arranged on the side wall of the inner cavity of the box body adjacent to the top of the inner cavity of the waste liquid storage box, and a salt spray proportioning component is arranged on the side wall of the inner cavity of the box body adjacent to the top of the inner cavity of the limiting component, and a transparent observation door is arranged on one side of the outer wall of the box body.

[0007] Preferably, the salt spray proportioning component includes a double-layer support plate arranged in the inner cavity of the box body adjacent to the top side wall of the inner cavity of the limit assembly, two groups of proportioning storage tanks with the same structure are arranged on one side of the double-layer support plate, and two groups of electric push rods with the same structure are installed on the other side of the double-layer support plate, the execution ends of the two groups of electric push rods are connected to two groups of sliding plates with the same structure, and two groups of sliding round rods with the same structure are slidably connected on both sides of the two groups of sliding plates, both ends of the two groups of sliding round rods are arranged on the outer walls of both sides of the double-layer support plate, and two groups of piston rods with the same structure are arranged at the bottom of the two groups of sliding plates, two groups of storage tanks with the same structure are arranged on the outer walls of the bottom of one end of the two groups of piston rods, the outer side walls of the two groups of storage tanks are arranged on the bottom side walls of the double-layer support plate, the outer side walls of the bottom of the two groups of storage tanks are connected to two groups of infusion tubes with the same structure, the other ends of the two groups of infusion tubes are connected to the inner cavity of the proportioning storage tank, and the two groups of infusion tubes are provided with two groups of first solenoid valves with the same structure, and two groups of spray parts with the same structure are arranged at the bottom of the two groups of storage tanks.

[0008] Preferably, the spray component includes a pipe connected to the bottom of the inner cavity of the storage tank, a second solenoid valve is arranged on the outer wall of the pipe, and one end of the bottom of the pipe is connected to a mixing box, and a plurality of spray heads of the same structure are arranged in an array at the bottom of the mixing box.

[0009] Preferably, the limiting assembly includes a horizontal plate arranged on the top side wall of the inner cavity of the waste liquid storage box, a motor protection shell is arranged on the top of the horizontal plate, a motor is installed in the inner cavity of the motor protection shell, a rotating disk is connected to the motor execution end, two groups of arc-shaped connecting rods of the same structure are hinged on the outer walls on both sides of the rotating disk, two groups of sliders of the same structure are hinged on the top of one end of the two groups of arc-shaped connecting rods, two groups of fluororubber chucks of the same structure are arranged on the outer walls of one side of the two groups of sliders, and connecting square plates are arranged on the outer side walls of the two groups of sliders.

[0010] Preferably, supporting grooves matching the sliders are symmetrically opened on both sides of the connecting square plate, and a plurality of first square grooves of the same structure are opened on the connecting square plate adjacent to both sides of the supporting grooves, and an anti-slip fluororubber pad is arranged at the center of the connecting square plate, and a plurality of second square grooves of the same structure are opened on both sides of the cross plate.

[0011] Preferably, the storage tank includes an outer wall provided with a scale.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates the automatic proportioning of hydrochloric acid and water through the salt spray proportioning component, thereby improving the operating efficiency of the hydrochloric acid corrosion test, and the limiting component facilitates the limiting of electronic components of different sizes, thereby avoiding movement during salt spray spraying and causing uneven spraying, wherein, hydrochloric acid and water are respectively placed in two groups of proportioning storage tanks with the same structure for storage, and two groups of electric push rod execution ends simultaneously drive the sliding plates connected to the two groups of the same structure to support the telescopic sliding at the execution ends of the outer walls of the two groups of sliding round rods, The two sets of sliding plates support the telescopic sliding and drive the two sets of piston rods with the same structure at the bottom to be pulled in the inner cavities of the two sets of storage tanks. The two sets of first solenoid valves are opened, so that when the hydrochloric acid and water are pulled upward, the hydrochloric acid and water in the two proportioning storage tanks are simultaneously drawn into their respective storage tanks, and under the action of the pressure difference, the liquid is pressed into the storage tank. The storage tank includes an outer wall provided with a scale to facilitate observation and adjustment of the liquid level of the piston rod at different pulls, which is convenient for automatic proportioning of hydrochloric acid and water, and improves the operating efficiency of the hydrochloric acid corrosion test. When the rod is pushed downward in the storage tank, a second solenoid valve is provided on the outer wall of the pipeline to open, and all the hydrochloric acid and water in the two groups of storage tanks will be pushed into the two groups of pipelines at the same time, and then enter the mixing box for mixing, and finally a plurality of spray heads with the same structure will perform salt spraying operation. Furthermore, a rotating disk is connected to the execution end of the motor for rotation, and the rotation of the rotating disk drives two groups of arc connecting rods with the same structure hinged on the outer walls on both sides to rotate, and the rotation of the arc connecting rod drives two groups of sliders with the same structure hinged on the top of one end to be restricted by the matching support chute. Two groups of fluororubber chucks with the same structure are provided on the outer walls of one side of the two groups of sliders to close to each other or spread away from each other. The fluororubber chucks are acid-resistant and soft, which is convenient for limiting electronic components of different sizes to avoid damage to electronic components and corrosion of salt spray spray. A plurality of first square grooves with the same structure are provided on both sides of the supporting chute by connecting the square plate and the plurality of second square grooves with the same structure are provided on both sides of the horizontal plate, so that excessive salt spray liquid can enter the waste liquid storage box through the groove hole for recovery and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0015] Figure 3 It is a schematic cross-sectional view of the structure of the salt spray proportioning assembly of the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0017] Figure 5 It is a schematic cross-sectional view of the storage tank structure of the present invention.

[0018] In the figure: 1. Box body; 2. Waste liquid storage box; 3. Limiting assembly; 30. Horizontal plate; 31. Motor protection shell; 32. Motor; 33. Rotating disk; 34. Arc connecting rod; 35. Sliding block; 36. Fluororubber chuck; 37. Connecting square plate; 371. Support slide groove; 372. First square groove; 373. Second square groove; 374. Anti-skid fluororubber pad; 4. Salt spray proportioning assembly; 40. Spraying parts; 401. Pipeline; 402. Second solenoid valve; 403. Mixing box; 404. Spray head; 41. Double-layer supporting plate; 42. Proportioning storage tank; 43. Electric push rod; 44. Sliding plate; 45. Piston rod; 46. Sliding round rod; 47. Storage tank; 471. Scale; 48. Infusion tube; 49. First solenoid valve; 5. Transparent observation door. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 As mentioned in the background technology, the prior art realizes the function of uniform salt spray spray in the above patent, but the ratio of hydrochloric acid and water needs to be manually mixed, the operating efficiency of the hydrochloric acid corrosion test is low, and it is not convenient to limit the electronic components of different sizes to avoid movement during salt spray spraying, resulting in uneven spraying. The present invention provides a technical solution: comprising a box body 1, a waste liquid storage box 2 is arranged at the bottom of one side of the inner cavity of the box body 1, and a limiting component 3 is arranged on the side wall of the inner cavity of the box body 1 adjacent to the top of the inner cavity of the waste liquid storage box 2, and a salt spray proportioning component 4 is arranged on the side wall of the inner cavity of the box body 1 adjacent to the top of the inner cavity of the limiting component 3, and a transparent observation door 5 is arranged on one side of the outer wall of the box body 1, the salt spray proportioning component 4 is convenient for automatic proportioning of hydrochloric acid and water, and the operating efficiency of the hydrochloric acid corrosion test is improved, and the limiting component 3 is convenient for limiting the electronic components of different sizes to avoid movement during salt spray spraying, resulting in uneven spraying.

[0021] See also Figure 1-5As shown, the salt spray proportioning component 4 includes a double-layer support plate 41 arranged in the inner cavity of the box body 1 adjacent to the top side wall of the inner cavity of the limit component 3, two groups of proportioning storage tanks 42 with the same structure are arranged on one side of the double-layer support plate 41, and two groups of electric push rods 43 with the same structure are installed on the other side of the double-layer support plate 41, and the execution ends of the two groups of electric push rods 43 are connected to two groups of sliding plates 44 with the same structure, and the two sides of the two groups of sliding plates 44 are slidably connected to two groups of sliding round rods 46 with the same structure, and the two ends of the two groups of sliding round rods 46 are arranged on the outer walls of both sides of the double-layer support plate 41, and the two groups of sliding plates 4 Two groups of piston rods 45 of the same structure are arranged at the bottom, two groups of storage tanks 47 of the same structure are arranged on the outer wall of the bottom of one end of the two groups of piston rods 45, the outer wall of the two groups of storage tanks 47 is arranged on the side wall of the bottom of the double-layer support plate 41, two groups of infusion tubes 48 of the same structure are connected to the outer wall of the bottom of the two groups of storage tanks 47, the other ends of the two groups of infusion tubes 48 are connected to the inner cavity of the proportioning storage tank 42, and the two groups of infusion tubes 48 are arranged with two groups of first solenoid valves 49 of the same structure, and two groups of spray parts 40 of the same structure are arranged at the bottom of the two groups of storage tanks 47. By respectively injecting hydrochloric acid and water into the mixture, the two groups of first solenoid valves 49 of the same structure are injected into the mixture, and the two groups of first solenoid valves 49 of the same structure are injected into the mixture, and the two groups of second ... The two sets of electric push rods 43 are used to drive the sliding plates 44 connected to the two sets of the same structure to slide telescopically on the outer wall of the two sets of sliding round rods 46. The two sets of sliding plates 44 support the telescopic sliding and drive the piston rods 45 with two sets of the same structure at the bottom to be pulled in the inner cavity of the two sets of storage tanks 47. The two sets of first solenoid valves 49 are opened, so that when the hydrochloric acid and water are pulled upward, the hydrochloric acid and water in the two sets of proportional storage tanks 42 are simultaneously drawn into their respective storage tanks 47. Under the action of the pressure difference, The liquid is pressed into the storage tank 47, and the storage tank 47 includes an outer wall provided with a scale 471 for convenient observation and adjustment of the liquid level of the piston rod 45 at different pull-outs, which is convenient for automatic proportioning of hydrochloric acid and water and improves the operating efficiency of the hydrochloric acid corrosion test. When the piston rod 45 pushes the storage tank 47 downward, the second solenoid valve 402 provided on the outer wall of the pipeline 401 is opened, and all the hydrochloric acid and water in the two groups of storage tanks 47 will be pushed into the two groups of pipelines 401 at the same time, and then enter the mixing box 403 for mixing, and finally a plurality of spray heads 404 with the same structure perform salt spraying operations.

[0022] See also Figure 1-5 As shown, the spray component 40 includes a pipe 401 connected to the bottom of the inner cavity of the storage tank 47, a second solenoid valve 402 is arranged on the outer wall of the pipe 401, and one end of the bottom of the pipe 401 is connected to a mixing box 403, and a plurality of spray heads 404 of the same structure are arranged in an array at the bottom of the mixing box 403. All the hydrochloric acid and water from the two groups of storage tanks 47 will be pushed into the two groups of pipes 401 at the same time, and then enter the mixing box 403 for mixing, and finally the salt mist spraying operation will be performed by the plurality of spray heads 404 of the same structure.

[0023] See also Figure 3-4 As shown, the limit assembly 3 includes a horizontal plate 30 arranged on the top side wall of the inner cavity of the waste liquid storage box 2, a motor protection shell 31 is arranged on the top of the horizontal plate 30, a motor 32 is installed in the inner cavity of the motor protection shell 31, and a rotating disk 33 is connected to the execution end of the motor 32. Two groups of arc connecting rods 34 of the same structure are hinged on the outer walls of both sides of the rotating disk 33, and two groups of sliders 35 of the same structure are hinged on the top of one end of the two groups of arc connecting rods 34. Two groups of fluororubber chucks 36 of the same structure are arranged on the outer walls of one side of the two groups of sliders 35, and the outer side walls of the two groups of sliders 35 are provided with connecting square plates 37. Further, through the motor The execution end 32 is connected to a rotating disk 33 for rotation. The rotation of the rotating disk 33 drives two groups of arc-shaped connecting rods 34 with the same structure hinged on the outer walls on both sides to rotate. The rotation of the arc-shaped connecting rods 34 drives two groups of sliders 35 with the same structure hinged on the top of one end to be restricted by the matching support groove 371. Two groups of fluororubber chucks 36 with the same structure are arranged on the outer walls of one side of the two groups of sliders 35 to close together or spread apart from each other. The fluororubber chucks 36 are acid-resistant and soft, which is convenient for limiting electronic components of different sizes to avoid damage to electronic components and corrosion from salt spray.

[0024] See also Figure 2-4 As shown, supporting grooves 371 matching the slider 35 are symmetrically opened on both sides of the connecting square plate 37, and a plurality of first square grooves 372 of the same structure are opened on both sides of the connecting square plate 37 adjacent to the supporting grooves 371, and a non-slip fluororubber pad 374 is arranged at the center of the connecting square plate 37, and a plurality of second square grooves 373 of the same structure are opened on both sides of the cross plate 30. By opening a plurality of first square grooves 372 of the same structure adjacent to both sides of the supporting grooves 371 of the connecting square plate 37 and a plurality of second square grooves 373 of the same structure on both sides of the cross plate 30, it is convenient for excess salt spray liquid to enter the waste liquid storage box 2 through the groove holes for recovery and storage.

[0025] See also Figure 1-3 As shown, the storage tank 47 includes an outer wall provided with a scale 471, and the storage tank 47 includes an outer wall provided with a scale 471, which facilitates observation and adjustment of the liquid level of the piston rod 45 when it is pulled out at different times.

[0026] Working principle: At the beginning of the work, the user puts hydrochloric acid and water into two groups of proportioning storage tanks 42 with the same structure for storage, and triggers the execution ends of two groups of electric push rods 43 through the PLC controller to simultaneously drive the sliding plates 44 connected to the two groups of the same structure to support the telescopic sliding at the execution ends of the outer walls of the two groups of sliding round rods 46. The two groups of sliding plates 44 support the telescopic sliding and drive the piston rods 45 with the same structure at the bottom to be pulled in the inner cavities of the two groups of storage tanks 47, and the two groups of first solenoid valves 49 are opened, so that the hydrochloric acid and water are moved upward. When pulling, the hydrochloric acid and water in the two groups of proportioning storage tanks 42 are simultaneously drawn into their respective storage tanks 47, and under the action of the pressure difference, the liquid is pressed into the storage tank 47, and the storage tank 47 includes a scale 471 arranged on the outer wall to facilitate observation and adjustment of the liquid level of the piston rod 45 at different pull-outs, which is convenient for automatic proportioning of hydrochloric acid and water and improves the operating efficiency of the hydrochloric acid corrosion test. When the piston rod 45 pushes the storage tank 47 downward, the second solenoid valve 402 arranged on the outer wall of the pipeline 401 is opened, and all the hydrochloric acid in the two groups of storage tanks 47 is stored. The water will be pushed into the two sets of pipes 401 at the same time, and then enter the mixing box 403 for mixing, and finally a plurality of spray heads 404 with the same structure will perform the salt spray operation. Furthermore, the motor 32 is connected to a rotating disk 33 at the execution end for rotation, and the rotating disk 33 rotates to drive two sets of arc connecting rods 34 with the same structure hinged on the outer walls on both sides to rotate, and the arc connecting rod 34 rotates to drive two sets of sliders 35 with the same structure hinged on the top of one end to limit the matching support groove 371. The walls are provided with two groups of fluororubber chucks 36 of the same structure to close together or spread apart from each other. The fluororubber chucks 36 are acid-resistant and soft, which is convenient for limiting electronic components of different sizes to avoid damage to electronic components and corrosion caused by salt spray spray. A plurality of first square grooves 372 of the same structure are opened on both sides of the supporting slide groove 371 by connecting the square plate 37, and a plurality of second square grooves 373 of the same structure are opened on both sides of the cross plate 30, so that excess salt spray liquid can enter the waste liquid storage box 2 through the groove holes for recovery and storage.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrochloric acid corrosion test box for electronic components, characterized in that: The invention comprises a box body (1), a waste liquid storage box (2) is arranged at the bottom of one side of the inner cavity of the box body (1), a limit assembly (3) is arranged on the inner cavity of the box body (1) adjacent to the inner cavity top side wall of the waste liquid storage box (2), and a salt spray proportioning assembly (4) is arranged on the inner cavity of the box body (1) adjacent to the inner cavity top side wall of the limit assembly (3), and a transparent observation door (5) is arranged on one side of the outer wall of the box body (1).

2. The hydrochloric acid corrosion test box for electronic components according to claim 1, characterized in that: The salt spray proportioning component (4) comprises a double-layer support plate (41) arranged in the inner cavity of the box body (1) adjacent to the top side wall of the inner cavity of the limit component (3); two groups of proportioning storage tanks (42) of the same structure are arranged on one side of the double-layer support plate (41); and two groups of electric push rods (43) of the same structure are installed on the other side of the double-layer support plate (41); the execution ends of the two groups of electric push rods (43) are connected to two groups of sliding plates (44) of the same structure; the two sides of the two groups of sliding plates (44) are slidably connected to two groups of sliding round rods (46) of the same structure; the two ends of the two groups of sliding round rods (46) are arranged on the outer walls of both sides of the double-layer support plate (41); and the two groups of Two groups of piston rods (45) of the same structure are arranged at the bottom of the sliding plate (44); two groups of storage tanks (47) of the same structure are arranged on the outer wall at the bottom of one end of the two groups of piston rods (45); the outer walls of the two groups of storage tanks (47) are arranged on the side wall at the bottom of the double-layer support plate (41); the outer walls of the bottoms of the two groups of storage tanks (47) are connected to two groups of infusion tubes (48) of the same structure; the other ends of the two groups of infusion tubes (48) are connected to the inner cavity of the proportioning storage tank (42); the two groups of infusion tubes (48) are arranged with two groups of first solenoid valves (49) of the same structure; and two groups of spray parts (40) of the same structure are arranged at the bottom of the two groups of storage tanks (47).

3. The hydrochloric acid corrosion test box for electronic components according to claim 2, characterized in that: The spray element (40) comprises a pipe (401) connected to the bottom of the inner cavity of the storage tank (47), a second solenoid valve (402) is arranged on the outer wall of the pipe (401), and one end of the bottom of the pipe (401) is connected to a mixing box (403), and a plurality of spray heads (404) of the same structure are arranged in an array at the bottom of the mixing box (403).

4. The hydrochloric acid corrosion test box for electronic components according to claim 1, characterized in that: The limiting assembly (3) comprises a horizontal plate (30) arranged on the top side wall of the inner cavity of the waste liquid storage box (2), a motor protection shell (31) is arranged on the top of the horizontal plate (30), a motor (32) is installed in the inner cavity of the motor protection shell (31), the execution end of the motor (32) is connected to a rotating disk (33), two groups of arc-shaped connecting rods (34) of the same structure are hinged on the outer walls on both sides of the rotating disk (33), two groups of sliders (35) of the same structure are hinged on the top of one end of the two groups of arc-shaped connecting rods (34), two groups of fluororubber chucks (36) of the same structure are arranged on the outer walls of one side of the two groups of sliders (35), and connecting square plates (37) are arranged on the outer side walls of the two groups of sliders (35).

5. The hydrochloric acid corrosion test box for electronic components according to claim 4, characterized in that: The connecting square plate (37) has symmetrically provided support grooves (371) matching the slider (35) on both sides, and the connecting square plate (37) has multiple first square grooves (372) of the same structure adjacent to both sides of the support grooves (371), and a non-slip fluororubber pad (374) is provided at the center of the connecting square plate (37), and multiple second square grooves (373) of the same structure are provided on both sides of the transverse plate (30).

6. The hydrochloric acid corrosion test box for electronic components according to claim 2, characterized in that: The storage tank (47) includes an outer wall provided with a scale (471).

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