A test device for the waterproof performance of a new energy power control box

Abstract

This invention discloses a waterproof performance testing device for new energy vehicle electronic control boxes, relating to the field of new energy vehicle electronic control box testing technology. It solves the problems of existing technologies in testing the waterproof performance of automotive electronic control boxes, such as limited testing methods, inconvenient operation, and susceptibility to affecting test results and efficiency. The device includes a test base; a test chamber fixedly mounted on the test base, with a test seat located in the side port of the test chamber, and a water-filled test tank fixedly connected to the inner side of the test seat; a conveying device mounted on the test base for conveying the electronic control box to be tested to the test position within the test chamber; and a support device for supporting and placing the electronic control box. This invention's testing scheme eliminates the need for a separate, dedicated testing device, allows for convenient switching of testing methods, effectively reduces costs, minimizes operational interference with test results, improves the accuracy of test results, and is generally very convenient to operate.

Description

Technical Field

[0001] This invention belongs to the field of new energy power control box testing technology, and in particular relates to a new energy power control box waterproof performance testing device. Background Technology

[0002] With the increasing popularity of new energy vehicles, the waterproofing requirements for automotive electronic control enclosures are becoming increasingly stringent. As a key component of a vehicle, the quality of its waterproofing directly affects the overall performance and driving safety of the vehicle. Therefore, the market demand for waterproofing testing equipment is showing a continuous upward trend.

[0003] As the installation carrier for the electronic control system of new energy vehicles, the automotive electronic control enclosure must possess excellent mechanical protection, sealing performance, and heat dissipation performance. Traditional testing equipment for the waterproof performance of new energy electronic control enclosures has some shortcomings.

[0004] Currently, in order to conduct more comprehensive testing, the testing generally needs to be carried out in two ways: First, the electrical control box is directly hoisted into the test water tank, so that it is completely immersed in the water and kept for a period of time to simulate the flooding situation and test its waterproof performance.

[0005] Secondly, the electrical control box is suspended in a test water tank, and then water spray tests are conducted on the equipment from any direction. However, both of these testing methods require specialized equipment, resulting in high costs and inconvenient operation. Especially when switching between methods, such as switching from one test method to another after completion, it requires repeated manual operation of the hoisting mechanism to suspend both sides of the electrical control box, a process that can easily interfere with the test results.

[0006] In summary, existing technologies for testing the waterproof performance of automotive electronic control boxes suffer from problems such as limited testing methods, inconvenient operation, and susceptibility to affecting test results and efficiency. Summary of the Invention

[0007] This invention provides a waterproof performance testing device for new energy vehicle electronic control boxes, which can solve the problems of existing technologies in testing the waterproof performance of automotive electronic control boxes, such as limited testing methods, inconvenient operation, and easy impact on test results and efficiency.

[0008] To achieve the above objectives, according to an embodiment of the first aspect of the present invention, a waterproof performance testing device for a new energy power control box is provided, comprising a test base; and further comprising:

[0009] The test chamber is fixedly mounted on the test base. A test seat is provided in the side port of the test chamber, and a water-filled test tank is fixedly connected to the inner side of the test seat.

[0010] A conveying device, mounted on the test base, is used to convey the electrical control box to be tested to the test position inside the test chamber;

[0011] A support device is disposed in the test slot to support the electrical control box at the test position. The support device includes a support member that can move vertically elastically relative to the test slot.

[0012] A rotary drive device is mounted on the test base and is used to connect to the electrical control box at the test position and drive it to rotate around a horizontal axis.

[0013] The pressing device includes a frame fixed to the test base, a pressure cylinder mounted on the frame, and a pressing plate driven to rise and fall by the pressure cylinder. The pressing plate is used to press down the electrical control box located on the support device, so that it is immersed in the water of the test tank.

[0014] A further improvement is that the support device also includes mounting covers fixedly connected to the upper ends of the inner walls on both sides of the test tank, a pair of guide posts fixedly connected between each mounting cover and the inner wall of the bottom surface of the test tank, a support member slidably sleeved on each pair of guide posts, and a spring structure disposed in each mounting cover and on the guide posts and connected to the support member.

[0015] A further improvement is that the spring structure includes a first compression spring fixedly connected inside each mounting cover and a second compression spring movably sleeved on each guide post. The top end of each support member is bent at a right angle, and its inner wall is fixedly connected to the top surface of each first compression spring. The two sides of each support member are slidably connected to the inner walls of the two sides of the mounting cover. The top surface of each second compression spring is symmetrically fixedly connected to the two sides of the bottom surface of each support member, and the bottom end is fixedly connected to the inner wall of the bottom surface of the test groove.

[0016] A further improvement is that the support device also includes a pair of auxiliary rotating parts for connecting to both sides of the electrical control box. Each auxiliary rotating part is divided into an auxiliary rotating column and a connecting plate fixedly connected to the side of the auxiliary rotating column. A support base is fixedly connected to the surface of each support member. Each auxiliary rotating column is movably inserted into the support base. A set of slots is opened on the side of each auxiliary rotating column. A pressure column is fixedly installed on both sides of the bottom surface of the pressure plate. A positioning column is fixedly connected to the side of the pressure column. A positioning groove is installed on each auxiliary rotating column in conjunction with the positioning column.

[0017] Each of the pressing columns is fixedly provided with a main electromagnet at its bottom end, and each of the support bases is fixedly connected with a magnetic suction plate at the position corresponding to the main electromagnet on its top surface. When the main electromagnet is energized, it attracts the magnetic suction plate to each other, so that the pressing plate and the support are attracted and locked.

[0018] A further improvement is that it also includes a drying assembly for drying the surface of the electrical control box after testing. The drying assembly includes a mounting plate fixedly connected to the frame and located at the back of the test chamber, a blower fixedly connected to the mounting plate, and an air duct fixedly connected to the output end of the blower. The air duct has a pair of corrugated branch pipes at the end away from the blower. The other end of each corrugated branch pipe is fixedly connected to the lower pressure plate and is symmetrically located on both sides of the pressure cylinder.

[0019] A further improvement is that the rotary drive device includes an adjustment structure, a support plate fixedly connected to the surface of the test base and located on both sides of the test chamber, a base fixedly connected to the top of the support plate, a sliding seat slidably disposed in the port of the base, a DC servo motor fixedly connected to the side of the sliding seat, and a synchronization sleeve fixedly connected to the spindle end of each DC servo motor. The inside of the synchronization sleeve is fixedly connected to a post with a mating slot.

[0020] A further improvement is that the adjustment structure includes a miniature adjustment cylinder fixedly connected to the side of the base. The base has an inner cavity, and the port surface of the base has a limiting groove communicating with the inner cavity. The bottom surface of the sliding seat protrudes downward at the position corresponding to the limiting groove and is movably locked in the limiting groove. The rod end of each miniature adjustment cylinder is inserted into the inner cavity and fixedly connected to the bottom surface of the sliding seat.

[0021] A further improvement is that the conveying device includes a pair of electric slide rails fixed to the test base and a conveying base plate fixed to the slider of the electric slide rails, and the test seat in the test chamber is fixedly connected to the conveying base plate.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] (1) The design of the rotary drive device of this invention uses micro-adjusting cylinders on both sides of the test chamber to extend their rods and push the sliding seat to slide within the top port of the base. This action causes the synchronous sleeves at the main shaft ends of the DC servo motors on both sides to be fitted onto the auxiliary rotating column, while the inserts inside the synchronous sleeves are precisely inserted into the slots on the side of the auxiliary rotating column, achieving convenient plug-in installation and thus fixing the electrical control box. Subsequently, the two DC servo motors are started synchronously, driving the synchronous sleeves, auxiliary rotating parts, and the electrical control box to be tested to rotate together. During this process, the auxiliary rotating parts, supported by the support base, ensure that the electrical control box to be tested can rotate stably in all directions, realizing water spray testing of the equipment in any direction. After the test is completed, the blower is started, and with the cooperation of the rotary drive device, the residual water on the electrical control box to be tested is dried. Afterwards, the rod of the micro-adjusting cylinder drives the synchronous sleeve to retract, and then the electrical control box to be tested is moved out of the test chamber using the conveying device. At this time, the on-site staff operates the instrument to test the electrical control box and observe whether water has entered.

[0024] (2) The design of the rotary drive device of the present invention, by activating the pressure cylinder, the rod of which drives the lower pressure plate again, so that the positioning pins on the lower pressure columns on both sides of the bottom surface of the lower pressure plate are inserted into the positioning slots on the auxiliary rotating column, realizing the convenient insertion and fixing of the lower pressure plate and the support component and preventing it from shaking or deflecting during lifting or testing. Then, by controlling the main electromagnet to be energized, the lower pressure plate and the support component are attracted and locked. Immediately afterwards, as the pressure cylinder rod continues to descend, the top of the support component compresses the first compression spring and the bottom of the support component compresses the second compression spring, until the support component and the control box to be tested are completely immersed in the water in the tank and kept there for a certain period of time, thereby simulating the flooding situation and testing the waterproof performance of the control box. After the test, the pressure cylinder was controlled to drive the locking assembly upwards and lift it. Once lifted to the set height, the electromagnetic adsorption unit was de-energized and released, achieving fully controllable and stable operation throughout the immersion and lifting process. This overcomes the problems of impact, water splashing, and inaccurate depth control caused by the direct spring-loaded structure, while also reducing reliance on the long-term consistency of spring performance and improving the reliability and repeatability of the test. Subsequently, a blower was started to dry any remaining moisture on the electrical control box, completing the water immersion test.

[0025] In summary, the present invention has many advantages with the above design: it does not require a separate dedicated testing device, can easily switch testing methods, effectively reduces costs, reduces operational interference with test results, and improves the accuracy of test results; it eliminates the need to wait for natural air drying or operate an external blower to dry the electrical control box to be tested, avoids water splashing from the test chamber due to immersion or water spraying, reduces the workload of subsequent cleaning personnel, and is very convenient to operate and use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the frame of the present invention after the top plate is removed;

[0028] Figure 3 This is an exploded view of the rotating drive device and auxiliary rotating component on one side of the present invention;

[0029] Figure 4 This is a schematic diagram of the conveying device, test seat, and test groove of the present invention;

[0030] Figure 5 This is a front view of the overall cross-sectional structure of the present invention (at the test stand);

[0031] Figure 6 This is a schematic diagram of the support device on one side of the test slot of the present invention;

[0032] Figure 7This is a schematic diagram of the side structure of the support device on one side inside the test groove of the present invention;

[0033] Figure 8 This is a schematic diagram of the rotary drive device and auxiliary rotating component insertion structure of the present invention.

[0034] Marked in the image:

[0035] 1. Test base; 11. Frame; 12. Pressure cylinder;

[0036] 2. Rotary drive device; 21. Support plate; 22. Miniature adjusting cylinder; 23. Base; 231. Sliding seat; 24. DC servo motor; 25. Synchronous sleeve; 251. Insert post; 201. Inner cavity; 202. Limiting groove;

[0037] 3. Test chamber; 31. Test base; 32. Test slot; 33. Lower pressure plate; 34. Lower pressure column; 341. Positioning column; 35. Magnetic suction plate; 36. Main electromagnet;

[0038] 4. Conveying device; 41. Conveying base plate; 42. Electric slide rail;

[0039] 5. Support device; 51. Guide column; 52. Mounting cover; 53. First compression spring; 54. Support component; 55. Auxiliary rotating component; 551. Auxiliary rotating column; 552. Connecting plate; 553. Support base; 554. Slot; 555. Positioning slot; 56. Second compression spring; 501. Inlet / outlet slot;

[0040] 6. Air drying assembly; 61. Mounting plate; 62. Blower; 63. Air duct; 64. Corrugated branch pipe. Detailed Implementation

[0041] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0042] like Figures 1 to 8 As shown, a new energy power control box waterproof performance testing device includes a test base 1, and anti-slip blocks can be installed at the four corners of the bottom surface of the test base 1 to ensure stability during testing.

[0043] Test chamber 3 is fixedly mounted on test base 1. Test seat 31 is provided in the side port of test chamber 3. Test tank 32 containing water is fixedly connected to the inner side of test seat 31.

[0044] It should be noted that a drain outlet is fixedly installed on the bottom surface of the test tank 32, and a control valve is installed on the drain outlet, which can be used to release water after the test is completed.

[0045] The conveying device 4 is set on the test base 1 and is used to convey the electrical control box to be tested to the test position in the test chamber 3. The conveying device 4 includes a pair of electric slide rails 42 fixed on the test base 1 and a conveying base plate 41 fixed on the slider of the electric slide rails 42. The test seat 31 in the test chamber 3 is fixedly connected to the conveying base plate 41.

[0046] A support device 5 is installed inside the test slot 32 to support the electrical control box at the test position. The support device 5 includes a support member 54 that can move vertically elastically relative to the test slot 32, a mounting cover 52 fixedly connected to the upper end of the inner walls on both sides of the test slot 32, a pair of guide posts 51 fixedly connected between each mounting cover 52 and the inner wall of the bottom surface of the test slot 32, a support member 54 slidably sleeved on each pair of guide posts 51, and a spring structure installed inside each mounting cover 52 and on the guide posts 51 and connected to the support member 54. After the mounting cover 52 is installed, its port is provided with a notch for the installation of the guide post 51 and a notch for the sliding of the support member 54. The support member 54 is slidably sleeved on each pair of guide posts 51. The guide posts 51 are used to stabilize the support member 54 when it moves vertically elastically.

[0047] The spring structure includes a first compression spring 53 fixedly connected inside each mounting cover 52 and a second compression spring 56 movably sleeved on each guide post 51. The top of each support member 54 is bent at a right angle, and its inner wall is fixedly connected to the top surface of each first compression spring 53. The two sides of each support member 54 are slidably connected to the inner walls of the two sides of the mounting cover 52. The top surface of each second compression spring 56 is symmetrically fixedly connected to the two sides of the bottom surface of each support member 54, and the bottom end is fixedly connected to the inner wall of the bottom surface of the test groove 32. When the electrical control box is tested, the electrical control box can be automatically lifted by using the rebound force of the first compression spring 53 and the second compression spring 56, so that the on-site staff can hook the lifting mechanism onto the electrical control box for easy lifting.

[0048] It should be noted that the first compression spring 53 and the second compression spring 56 have the same elastic limit. When the electrical control box to be tested is installed with a support, the first compression spring 53 and the second compression spring 56 located on both sides of the test slot 32 work simultaneously to provide elastic support.

[0049] More specifically, the support device 5 also includes a pair of auxiliary rotating parts 55 for connecting to both sides of the electrical control box. Each auxiliary rotating part 55 is divided into an auxiliary rotating column 551 and a connecting plate 552 fixedly connected to the side of the auxiliary rotating column 551. Each support member 54 has a support seat 553 fixedly connected to its surface. The support seat 553 and the support member 54 are integrated. The support seat 553 has a notch in the middle for installing the auxiliary rotating column 551. Each auxiliary rotating column 551 is movably inserted into the support seat 553. Each auxiliary rotating column 551 has a set of slots 554 on its side.

[0050] The pressing device includes a frame 11 fixed on the test base 1, a pressure cylinder 12 installed on the frame 11, and a pressing plate 33 driven to rise and fall by the pressure cylinder 12. The pressing plate 33 is used to press down the electrical control box located on the support device 5 so that it is immersed in the water of the test tank 32.

[0051] Specifically, both sides of the bottom surface of the lower pressure plate 33 are fixedly installed with lower pressure columns 34, and the sides of the lower pressure columns 34 are fixedly connected with positioning columns 341. Each auxiliary rotating column 551 has a positioning groove 555 installed in conjunction with the positioning column 341. By activating the pressure cylinder 12, its rod drives the lower pressure plate 33, so that the positioning columns 341 on the lower pressure columns 34 on both sides of the bottom surface of the lower pressure plate 33 are inserted into the positioning grooves 555 on the auxiliary rotating column 551. This allows for convenient insertion and connection of the lower pressure plate 33 and the support 54, and fixes the electrical control box to prevent it from shaking or deflecting during lifting or testing.

[0052] More specifically, a main electromagnet 36 is fixedly installed at the bottom of each pressure column 34, and a magnetic suction plate 35 is fixedly connected to the top surface of each support 553 at the position corresponding to the main electromagnet 36. The main electromagnet 36 is waterproof. By controlling the main electromagnet 36 to be energized, the pressure plate 33 and the support 54 are attracted and locked, and the pressure cylinder 12 is controlled to drive the entire locking assembly to descend into the water and rise to lift. After being lifted to the set height, the electromagnetic adsorption unit is de-energized and released, which is used for the connection and separation of the pressure column 34 and the support 54. This achieves full controllability and stable operation of the immersion and lifting process, overcomes the problems of impact, water splash and inaccurate depth control caused by the direct springing of the spring structure, and reduces the dependence on the long-term consistency of spring performance, thereby improving the reliability and repeatability of the test.

[0053] This embodiment also provides another implementation scheme, specifically including: a rotation drive device 2, which is disposed on the test base 1 and is used to connect to the electrical control box at the test position and drive it to rotate around the horizontal axis;

[0054] The rotary drive device 2 includes an adjustment structure, a support plate 21 fixedly connected to the surface of the test base 1 and located on both sides of the test chamber 3, a base 23 fixedly connected to the top of the support plate 21, a sliding seat 231 slidably disposed in the port of the base 23, a DC servo motor 24 fixedly connected to the side of the sliding seat 231, and a synchronous sleeve 25 fixedly connected to the spindle end of each DC servo motor 24. The inside of the synchronous sleeve 25 is fixedly connected to the insertion post 251 of the mating slot 554. The test slot 32 and the side of the support member 54 are both provided with slots for the synchronous sleeve 25 to slide and the auxiliary rotating member 55 to be inserted.

[0055] It should be noted that after the electrical control box to be tested is placed in the test slot 32 and the support is installed, the positions of its synchronization sleeve 25 and auxiliary rotating part 55 are corresponding; in addition, the test chamber 3, the test slot 32 and the support part 54 are provided with inlet and outlet slots 501 for the synchronization sleeve 25 to enter and exit at the same position.

[0056] Specifically, the adjustment structure includes a miniature adjustment cylinder 22 fixedly connected to the side of the base 23. The base 23 has an inner cavity 201, and the port surface of the base 23 has a limiting groove 202 communicating with the inner cavity 201. The bottom surface of the sliding seat 231 protrudes downward at the position corresponding to the limiting groove 202 and is movably locked in the limiting groove 202. The rod end of each miniature adjustment cylinder 22 is inserted into the inner cavity 201 and fixedly connected to the bottom surface of the sliding seat 231. The position of the sliding seat 231 is adjusted by synchronously controlling the miniature adjustment cylinders 22 on both sides of the test chamber 3 to extend their rods and push the sliding seat 231 to slide within the top port of the base 23. This action causes the synchronous sleeves 25 at the spindle ends of the DC servo motors 24 on both sides to be fitted onto the auxiliary rotating column 551, while the insertion post 251 inside the synchronous sleeve 25 is precisely inserted into the slot 554 on the side of the auxiliary rotating column 551, so as to achieve convenient plug-in installation and thus fix the electrical control box.

[0057] This embodiment also provides another implementation scheme, as detailed below:

[0058] It also includes a drying assembly 6 for drying the surface of the electrical control box after testing. The drying assembly 6 includes a mounting plate 61 fixedly connected to the frame 11 and located on the back of the test chamber 3, a blower 62 fixedly connected to the mounting plate 61, and an air duct 63 fixedly connected to the output end of the blower 62. The air duct 63 can be fixed to the frame 11. The air duct 63 has a pair of corrugated branch pipes 64 at the end away from the blower 62. The other end of each corrugated branch pipe 64 is fixedly connected to the lower pressure plate 33. The air outlet is set at an angle to synchronize with the lower pressure plate 33 and is symmetrically located on both sides of the pressure cylinder 12. After the water spray test / water immersion test, the electrical control box to be tested can be dried.

[0059] It should also be noted that the water ingress test and water spray test mentioned in the application document involve pre-installing nozzles in the test tank 32 and on the lower pressure plate 33. The specific location and number of nozzles are selected according to the site requirements, and this embodiment does not impose any limitations. Furthermore, it should be noted that this application document only addresses the shortcomings of existing technologies in testing the waterproof performance of automotive electronic control boxes, such as the simplistic testing methods, inconvenient operation, and the potential impact on test results and efficiency. It does not involve improvements in other aspects.

[0060] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0061] The present invention has two testing scenarios during the testing process, and the specific operation procedures are as follows:

[0062] In the initial position, the conveying device 4 moves the test seat 31 along with the test slot 32 to the assembly station. Then, the auxiliary rotating column 551 in the auxiliary rotating component 55 is accurately inserted into the support 553 at the port of the support component 54. Next, with the help of an external hoisting mechanism, the electrical control box to be tested is hoisted into the test slot 32, ensuring that both sides of the electrical control box are securely connected to the connecting plate 552 of the auxiliary rotating component 55. At this point, the auxiliary rotating component 55 and the synchronization sleeve 25 are in corresponding positions.

[0063] After completing the above operations, the conveying device 4 is restarted, transporting the test base 31 along with the electrical control box to be tested to the designated test position in the test chamber 3. Upon reaching the test position, the micro-adjusting cylinders 22 on both sides of the test chamber 3 are synchronously controlled, causing their rods to extend and push the sliding seat 231 to slide within the top port of the base 23. This action causes the synchronous sleeves 25 at the spindle ends of the DC servo motors 24 on both sides to enter through the inlet / outlet slots 501 and fit onto the auxiliary rotating columns 551 respectively. At the same time, the insertion pins 251 inside the synchronous sleeves 25 are precisely inserted into the slots 554 on the side of the auxiliary rotating columns 551, achieving convenient plug-in installation and thus fixing the electrical control box. Finally, the pressure cylinder 12 is activated, driving the lower pressure plate 33 to cover the opening of the test slot 32, effectively preventing the sprayed water from spilling into the test chamber 3.

[0064] After positioning, the water spray test phase begins. On-site personnel connect an external pump unit, which draws clean water and sprays it through pipes from the nozzles, directly onto the electrical control box to be tested. Simultaneously, two DC servo motors 24 are started, driving the synchronous sleeve 25, auxiliary rotating component 55, and the electrical control box to be tested to rotate together. During this process, the auxiliary rotating component 55, supported by the support base 553, ensures stable omnidirectional rotation of the electrical control box, enabling water spray testing in any direction. After the test, the blower 62 is started, and with the assistance of the rotary drive device 2, any remaining moisture on the electrical control box is dried. Then, the rod of the micro-adjusting cylinder 22 drives the synchronous sleeve 25 to retract, and the conveying device 4 moves the electrical control box to be tested out of the test chamber 3. At this point, on-site personnel operate instruments to test the electrical control box and observe whether water has entered.

[0065] After completing the water spray test, the water immersion test begins. The conveying device 4 transports the test stand 31, along with the electrical control box to be tested, back to the test position within the test chamber 3. The pressure cylinder 12 is activated, its rod driving the lower pressure plate 33 again. This causes the positioning pins 341 on the lower pressure columns 34 on both sides of the bottom surface of the lower pressure plate 33 to insert into the positioning slots 555 on the auxiliary rotating column 551, facilitating the easy connection between the lower pressure plate 33 and the support member 54 and securing the electrical control box to prevent shaking or deflection during lifting or testing. Then, the main electromagnet 36 is energized, causing the lower pressure plate 33 to adhere and lock to the support member 54. Next, as the pressure cylinder 12 continues to descend, the top of the support member 54 compresses the first compression spring 53, and the bottom compresses the second compression spring 56, until the support member 54 and the electrical control box to be tested are completely immersed in the water in the tank and held for a certain period, simulating flooding and testing the waterproof performance of the electrical control box. After the test is completed, the pressure cylinder 12 is controlled to drive the locking assembly to move upward and lift. After being lifted to the set height, the electromagnetic adsorption unit is de-energized and released, realizing full controllability and smooth operation of the immersion and lifting process. This overcomes the problems of impact, water splash and inaccurate depth control caused by the direct spring-loaded structure. At the same time, it reduces the dependence on the long-term consistency of spring performance and improves the reliability and repeatability of the test.

[0066] Then, blower 62 is started to dry the residual moisture on the electrical control box, completing the water immersion test. The above design of this invention has many advantages: it eliminates the need for a separate dedicated testing device, allows for convenient switching of testing methods, effectively reduces costs, minimizes operational interference with test results, and improves the accuracy of test results; it eliminates the need to wait for natural air drying or operate an external blower to dry the electrical control box to be tested, avoiding the splashing of wastewater from immersion or water spraying tests in the test chamber 3, reducing the workload of subsequent cleaning personnel, and making the overall operation and use very convenient.

[0067] The above-disclosed embodiments are only a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A waterproof performance testing device for a new energy power control box, comprising a test base (1); characterized in that, Also includes: The test chamber (3) is fixedly set on the test base (1). A test seat (31) is provided in the side port of the test chamber (3). A water-filled test tank (32) is fixedly connected to the inner side of the test seat (31). A conveying device (4) is installed on the test base (1) and is used to convey the electrical control box to be tested to the test position in the test chamber (3); A support device (5) is provided in the test slot (32) for supporting the electrical control box at the test position. The support device (5) includes a support member (54) that can move vertically elastically relative to the test slot (32), a mounting cover (52) fixedly connected to the upper end of the inner wall on both sides of the test slot (32), a pair of guide posts (51) fixedly connected between each mounting cover (52) and the inner wall of the bottom surface of the test slot (32), a support member (54) slidably sleeved on each pair of guide posts (51), and a spring structure provided in each mounting cover (52) and on the guide posts (51) and connected to the support member (54). The spring structure includes a first compression spring (53) fixedly connected inside each mounting cover (52) and a second compression spring (56) movably sleeved on each guide post (51). The top of each support member (54) is bent at a right angle, and its inner wall is fixedly connected to the top surface of each first compression spring (53). The two sides of each support member (54) are slidably connected to the inner walls of the two sides of the mounting cover (52). The top surface of the second compression spring (56) on each side is symmetrically fixedly connected to the two sides of the bottom surface of each support member (54), and the bottom end is fixedly connected to the inner wall of the bottom surface of the test groove (32). The support device (5) further includes a pair of auxiliary rotating parts (55) for connecting to both sides of the electrical control box. Each auxiliary rotating part (55) is divided into an auxiliary rotating column (551) and a connecting plate (552) fixedly connected to the side of the auxiliary rotating column (551). Each support member (54) has a support base (553) fixedly connected to its surface. Each auxiliary rotating column (551) is movably inserted into the support base (553). Each auxiliary rotating column (551) has a set of slots (554) on its side. A rotary drive device (2) is mounted on the test base (1) and is used to connect to the electrical control box at the test position and drive it to rotate around the horizontal axis. The pressing device includes a frame (11) fixed on the test base (1), a pressure cylinder (12) installed on the frame (11), and a pressing plate (33) driven to rise and fall by the pressure cylinder (12). The pressing plate (33) is used to press down the electrical control box located on the support device (5) so that it is immersed in the water of the test tank (32). Both sides of the bottom surface of the lower pressure plate (33) are fixedly installed with lower pressure columns (34), and the sides of the lower pressure columns (34) are fixedly connected with positioning columns (341). Each auxiliary rotating column (551) has a positioning groove (555) installed in cooperation with the positioning column (341). Each of the lowering columns (34) is fixedly provided with a main electromagnet (36) at its bottom end. Each of the support bases (553) has a magnetic suction plate (35) fixedly connected to its top surface at the position corresponding to the main electromagnet (36). When the main electromagnet (36) is energized, it attracts the magnetic suction plate (35) to each other, so that the lowering plate (33) and the support member (54) are attracted and locked.

2. The waterproof performance testing equipment for a new energy electrical control box according to claim 1, characterized in that, It also includes a drying assembly (6) for drying the surface of the electrical control box after testing. The drying assembly (6) includes a mounting plate (61) fixedly connected to the frame (11) and located on the back of the test chamber (3), a blower (62) fixedly connected to the mounting plate (61), and a duct (63) fixedly connected to the output end of the blower (62). The duct (63) has a pair of corrugated branch pipes (64) at one end away from the blower (62). The other end of each corrugated branch pipe (64) is fixedly connected to the lower pressure plate (33) and symmetrically located on both sides of the pressure cylinder (12).

3. The waterproof performance testing equipment for a new energy electrical control box according to claim 1, characterized in that, The rotary drive device (2) includes an adjustment structure, a support plate (21) fixedly connected to the surface of the test base (1) and located on both sides of the test chamber (3), a base (23) fixedly connected to the top of the support plate (21), a sliding seat (231) slidably disposed in the port of the base (23), a DC servo motor (24) fixedly connected to the side of the sliding seat (231) and a synchronous sleeve (25) fixedly connected to the spindle end of each DC servo motor (24), and a plug (251) with a mating slot (554) fixedly connected inside the synchronous sleeve (25).

4. The waterproof performance testing equipment for a new energy electrical control box according to claim 3, characterized in that, The adjustment structure includes a miniature adjustment cylinder (22) fixedly connected to the side of the base (23). The base (23) has an inner cavity (201) inside. The port surface of the base (23) has a limiting groove (202) communicating with the inner cavity (201). The bottom surface of the sliding seat (231) protrudes downward at the position corresponding to the limiting groove (202) and is movably locked in the limiting groove (202). The rod end of each miniature adjustment cylinder (22) is inserted into the inner cavity (201) and fixedly connected to the bottom surface of the sliding seat (231).

5. The waterproof performance testing equipment for a new energy electrical control box according to claim 1, characterized in that, The conveying device (4) includes a pair of electric slide rails (42) fixed on the test base (1) and a conveying base plate (41) fixed on the slider of the electric slide rails (42). The test seat (31) in the test chamber (3) is fixedly connected to the conveying base plate (41).

Images