A charging pile water spray testing device

Abstract

This invention discloses a water spray testing device for charging piles, belonging to the field of charging pile testing technology. It includes a test chamber, a spray unit, and a circulation unit. The test chamber includes a bottom component with a conical water trough on its upper surface. The sidewalls of the conical water trough also have multiple vertical square slots arranged in a circumferential array on the outer side of the drain pipe for assembling test piece supports. The test piece supports include multiple square tubes, each with a support platform at its upper end. The spray unit is located at the upper end of the test chamber and includes a linear mechanism. Its output end has a water collection cylinder, and multiple sets of fans are arranged in a circumferential array below the outer periphery of the water collection cylinder. The circulation unit is located on one side of the test chamber and includes a conical pipe. The conical pipe is sequentially connected to a second water valve and a first lift pump. The first lift pump is used to lift water and pump it into a water tank. The lower end of a telescopic pipe is connected to an inlet pipe. This invention can effectively simulate the impact of actual rainfall and different wind speeds on charging piles and enables the recycling of test water.

Description

Technical Field

[0001] This invention relates to the field of charging pile testing technology, and in particular to a charging pile water spray testing device. Background Technology

[0002] After the charging pile is assembled, it needs to be subjected to a water spray test, and then the internal condition of the charging pile needs to be checked to determine whether the charging pile is qualified.

[0003] Currently, several methods are commonly used in actual water spray tests. However, these methods all have some problems: The first method involves manually spraying water around the charging station using a handheld hose. This method is labor-intensive and covers a small area at the same time, failing to accurately simulate rainfall. The second method uses a spray booth, but typically only a few nozzles are installed on the top and sides. To test the water spray conditions on other sides, the charging station still needs to be manually rotated. In addition, various existing testing methods share several common problems, including excessive water usage and the side-spreading nozzles producing water droplets that move obliquely upwards, which does not match real-world rainfall conditions. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a charging pile water spray testing device that can effectively simulate the impact of actual rain and different wind speeds on charging piles, and can also achieve the recycling of test water.

[0005] In order to achieve the objectives of this invention, the following technologies are proposed:

[0006] A water spray testing device for charging piles includes:

[0007] The test chamber includes a bottom component with a horizontally formed bottom groove at its lower end. A conical water trough is formed on the upper surface of the bottom component. A drain pipe extending downward through the bottom component is formed at the lower end of the conical water trough. The sidewall of the conical water trough also has multiple vertical square grooves arranged in a circumferential array on the outside of the drain pipe for assembling a test piece support. The test piece support includes multiple square tubes that are matched with the vertical square grooves. A support platform is provided at the upper end of the square tubes. A top plate is provided above the bottom component. A top opening and a shaft opening are formed on the top plate.

[0008] The spray unit is installed at the top of the test chamber and includes a linear mechanism that is vertically fixed to the upper surface of the top plate. Its output shaft is installed at the shaft opening. The output end of the linear mechanism is provided with a water collection cylinder. The upper end of the water collection cylinder is provided with a water inlet pipe. The lower end of the water collection cylinder is provided with multiple first water valves. The lower end of the first water valves is provided with a nozzle. Multiple sets of fans are arranged in a circular array below the outer periphery of the water collection cylinder.

[0009] The circulation unit, located on one side of the test chamber, includes a conical pipe connected to the lower end of the drain pipe. The conical pipe is sequentially connected to a second water valve and a first lift pump. The circulation unit also includes a water tank. The first lift pump is used to lift water and pump it into the water tank. A second lift pump is also provided on the upper surface of the water tank. The circulation unit also includes a top pipe passing through the top opening. The second lift pump is used to lift water and pump it into the top pipe. A telescopic pipe is provided at the lower end of the top pipe, and the lower end of the telescopic pipe is connected to the water inlet pipe.

[0010] Furthermore, extension plates are provided on both sides of the support platform, and lifting rings are provided at the upper end of the extension plates.

[0011] Furthermore, the bottom surface of the vertical trough is provided with drainage holes, and the lower end of the drainage holes is connected to a drain pipe that penetrates the top wall of the bottom trough. Multiple collection pipes are connected to the outer periphery of the conical pipe, and the upper end of each collection pipe is connected to the bottom end of the drain pipe.

[0012] Furthermore, an inverted L-shaped bracket is provided on the upper surface of the bottom component, and an ultrasonic liquid level sensor is provided at one end of the horizontal part of the inverted L-shaped bracket.

[0013] Furthermore, the bottom component has a ring plate at the top, a side opening on the outer periphery of the ring plate, a pair of sealing doors fitted on the side opening, a handle on the outer side of the sealing doors, and a top plate at the top of the ring plate.

[0014] Furthermore, multiple horizontal plates are arranged in a circular array on the outer periphery of the water collection cylinder, and a pair of vertical plates are provided at the lower end of the horizontal plates. Multiple frame plates are provided between the two vertical plates along the vertical direction, and each fan is installed on the frame plate.

[0015] Furthermore, the cone tube is fixed to the lower end face of the bottom groove, the second water valve is connected to the bottom end of the cone tube, one end of the second water valve is provided with a horizontal pipe, and the water inlet end of the first lifting pump is connected to one end of the horizontal pipe.

[0016] Furthermore, the outlet end of the first booster pump is connected to a first inverted L-shaped pipe, and the horizontal part of the first inverted L-shaped pipe is connected to the upper part of one side of the water tank.

[0017] Furthermore, a water inlet is provided at the top of the water tank, and a second inverted L-shaped pipe is connected to the water inlet of the second lift pump. The vertical part of the second inverted L-shaped pipe passes through the water inlet, and the bottom end is close to the bottom of the water tank. The water outlet of the second lift pump is connected to an inverted U-shaped pipe, and the top pipe is located at the lower end of one vertical part of the inverted U-shaped pipe.

[0018] The beneficial effects of this technical solution are as follows:

[0019] 1. In this device, the water nozzles are only installed at the top, while fans are arranged around the charging pile to simulate different wind directions. This makes the water spray test more realistic.

[0020] 2. Through the circulation unit, the water collected in the conical water tank can be returned to the water tank, thus facilitating water circulation.

[0021] 3. It can also conduct immersion tests and adapt to different immersion depth standards by adjusting the height of the charging pile placement position. Attached Figure Description

[0022] Figure 1 An overall perspective view of an embodiment of this application is shown.

[0023] Figure 2 A perspective view of a portion of the test chamber, spray unit, and circulation unit according to an embodiment of this application is shown.

[0024] Figure 3 A partial exploded view of the test chamber according to an embodiment of this application is shown.

[0025] Figure 4 A partial perspective view of the test chamber according to an embodiment of this application is shown.

[0026] Figure 5 A partial three-dimensional view of the spray unit according to an embodiment of this application is shown. Figure 1 .

[0027] Figure 6 A partial three-dimensional view of the spray unit according to an embodiment of this application is shown. Figure 2 .

[0028] Figure 7 A perspective view of a cyclic unit according to an embodiment of this application is shown.

[0029] The diagram shows the following components: Test Chamber 1, Bottom Component 11, Bottom Tank 12, Conical Water Tank 13, Drain Pipe 14, Vertical Square Tank 15, Square Tube 151, Support Platform 152, Extension Plate 153, Lifting Ring 154, Drain Pipe 16, Inverted L-Shaped Frame 17, Ultrasonic Liquid Level Sensor 171, Ring Plate 18, Sealing Door 181, Handle 182, Top Plate 19, Spray Unit 2, Linear Mechanism 21, Water Collection Cylinder 22, Water Inlet Pipe 23. First water valve 24, nozzle 25, horizontal plate 26, vertical plate 27, support plate 28, fan 29, circulation unit 3, cone pipe 31, collection pipe 32, second water valve 33, horizontal pipe 331, first lift pump 34, water tank 35, first inverted L-shaped pipe 341, water inlet 351, support 352, second lift pump 36, second inverted L-shaped pipe 361, inverted U-shaped pipe 362, jacking pipe 37, telescopic pipe 38, charging pile 4. Detailed Implementation

[0030] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0031] like Figures 1-7 The device shown is a water spray test equipment for charging piles, including a test chamber 1, a spray unit 2, and a circulation unit 3.

[0032] like Figures 1-4As shown, the test chamber 1 includes a cylindrical bottom assembly 11. A bottom groove 12 is horizontally formed at the lower end of the bottom assembly 11, and a conical water channel 13 is formed on the upper surface of the bottom assembly 11. A drain pipe 14 extends downward through the bottom assembly 11 from the lower end of the conical water channel 13. Multiple vertical square grooves 15 are also formed in a circumferential array on the sidewalls of the conical water channel 13 outside the drain pipe 14 for assembling test piece supports. The test piece supports include multiple square tubes 151 that respectively match the vertical square grooves 15. A support platform 152 is provided at the upper end of each square tube 151. Extension plates 153 are provided on both sides of the support platform 152. A lifting ring 154 is provided at the upper end of each extension plate 153 for installing the test piece support above the vertical square grooves 15 using a vehicle-mounted crane. The test piece brackets with different lengths of square tubes 151 and / or different areas and shapes of support platforms 152 can be selected inside the chamber 1 to conduct immersion tests at different depths and / or to carry charging piles 4 of different sizes and shapes. The bottom surface of the vertical square trough 15 is also provided with a drainage hole. The lower end of the drainage hole is connected to a drain pipe 16 that penetrates the inner top wall of the bottom trough 12. The upper surface of the bottom component 11 is provided with an inverted L-shaped frame 17. One end of the horizontal part of the inverted L-shaped frame 17 is provided with an ultrasonic liquid level sensor 171. The upper end of the bottom component 11 is formed with a ring plate 18. The outer periphery of the ring plate 18 is provided with a side opening. A pair of sealing doors 181 are installed on the side opening. The outer side of the sealing doors 181 is provided with a handle 182. The upper end of the ring plate 18 is formed with a top plate 19. The top plate 19 is provided with a top opening and a shaft opening.

[0033] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the spray unit 2 is installed at the upper end of the test chamber 1, including a linear mechanism 21 vertically fixed to the upper surface of the top plate 19. In this embodiment, the linear mechanism 21 is a linear hydraulic cylinder. The output shaft of the linear mechanism 21 is installed at the shaft opening. The output end of the linear mechanism 21 is provided with a water collection cylinder 22. The upper end of the water collection cylinder 22 is provided with a water inlet pipe 23. The lower end of the water collection cylinder 22 is provided with multiple first water valves 24. The lower end of the first water valves 24 is provided with a nozzle 25. Multiple horizontal plates 26 are arranged in a circular array on the outer periphery of the water collection cylinder 22. Specifically, the number of horizontal plates 26 is at least eight. The lower end of the horizontal plates 26 is provided with a pair of vertical plates 27. Multiple support plates 28 are arranged vertically between the two vertical plates 27. A fan 29 is provided on the support plate 28. In this embodiment, the fan 29 is an axial flow fan.

[0034] like Figure 1 , Figure 2 , Figure 7As shown, the circulation unit 3 is located on one side of the test chamber 1, including a conical pipe 31 fixed to the lower end face of the bottom groove 12. The upper end of the conical pipe 31 is connected to the lower end of the drain pipe 14. Multiple collection pipes 32 are connected to the outer periphery of the conical pipe 31. The upper end of each collection pipe 32 is also connected to the bottom end of the drain pipe 16. The bottom end of the conical pipe 31 is also connected to a bend pipe. A second water valve 33 is provided at one end of the bend pipe. A horizontal pipe 331 is provided at one end of the second water valve 33. A first lift pump 34 is connected to one end of the horizontal pipe 331. That is, the water inlet end of the first lift pump 34 is connected to one end of the horizontal pipe 331. The circulation unit 3 also includes a water tank 35. A first inverted L-shaped pipe 341 is connected to the water outlet end of the first lift pump 34. The horizontal pipe 341 is connected to the first inverted L-shaped pipe 341. The upper part of the water tank 35 is connected to one side of the water tank 35. The upper end of the water tank 35 is provided with a water inlet 351. The upper end of the water tank 35 is also provided with a support 352. The upper end of the support 352 is provided with a second lift pump 36. The water inlet end of the second lift pump 36 is connected with a second inverted L-shaped pipe 361. The vertical part of the second inverted L-shaped pipe 361 passes through the water inlet 351, and the bottom end is close to the bottom of the water tank 35. The water outlet end of the second lift pump 36 is connected with an inverted U-shaped pipe 362. The inverted U-shaped pipe 362 includes a longer vertical part and a shorter vertical part. The lower end of the shorter vertical part of the inverted U-shaped pipe 362 is provided with a top pipe 37 that passes through the top opening. The lower end of the top pipe 37 is provided with a telescopic pipe 38. The lower end of the telescopic pipe 38 is connected to the water inlet pipe 23.

[0035] In this embodiment, both the first water valve 24 and the second water valve 33 are solenoid valves.

[0036] Work style:

[0037] Taking a specific charging pile water spray test process as an example, it includes tests in a windless state, tests under different wind directions, and immersion tests. In this process, a test piece bracket with a square tube 151 of matching length is selected according to the immersion water depth, and a support platform 152 that can stably place the charging pile 4 is selected according to the shape of the bottom of the charging pile 4, which can completely cover the bottom of the charging pile 4. Next, the sealing door 181 is opened. First, the components at the output end are raised by the linear mechanism 21 to avoid obstruction. Then, the test piece bracket is installed by the truck crane. Then, the charging pile 4 is placed on the test piece bracket. Then, the sealing door 181 is closed. Then, the components at the output end are lowered by the linear mechanism 21, so that at least one of the vertically arranged fans 29 has its axis above the upper surface of the charging pile 4, and at least one fan 29 has its axis below the upper surface of the charging pile 4. In this embodiment, there are two vertically arranged fans 29, so one is above the upper surface of the charging pile 4 and the other is below it. This allows the wind to cover both the area above and the side of the charging pile 4, achieving a better simulation. Before the test, water is drawn into the water collection cylinder 22 by the second lift pump 36.

[0038] In a typical windless water spray test, the first water valve 24 is opened directly, and water is sprayed through the nozzle 25. If a water spray test with wind direction is to be conducted, start with a set of fans 29 below a predetermined horizontal plate 26, start the set of fans 29 to make the water droplets have a horizontal speed, simulating actual rainy weather conditions, and so on, turning off one set of fans 29 after a predetermined time and starting another adjacent set of fans 29, until all the sets of fans 29 around the circle have been used. Preferably, each first water valve 24 can be precisely controlled to reduce the water circulation flow. Specifically, the center of gravity of the charging pile 4, each nozzle 25, and each fan 29 are projected onto the same horizontal plane. For the projection point, the distance between the charging pile 4 and the operating fan 29 is used as a reference. For nozzles 25 that are greater than this distance from the operating fan 29, the first water valve 24 controlling them is closed, because the water sprayed from these nozzles 25 cannot contact the charging pile 4, so there is no need to spray from these nozzles 25.

[0039] The water circulation of this device can be achieved by opening the second water valve 33 and pumping water into the water tank 35 via the first lift pump 34. If, in addition to the water spray test, an immersion test of the charging pile 4 is also required, the liquid level in the conical water tank 13 can be kept constant by using the ultrasonic level sensor 171. A test piece support of a predetermined height can be selected on top of the test piece based on the required immersion depth of the charging pile 4. Preferably, if the second water valve 33 is a solenoid valve that can control the flow rate, the liquid level in the conical water tank 13 can be dynamically controlled to remain constant during water spraying.

[0040] As another implementation, the charging pile water spray test equipment can also be combined with a control box to form a charging pile intelligent test system. The control box is equipped with a microcontroller, which is electrically connected to the ultrasonic liquid level sensor 171, linear mechanism 21, first water valve 24, fan 29, second water valve 33, first lift pump 34, and second lift pump 36 to realize control.

[0041] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A water spray testing device for charging piles, characterized in that, include: The test chamber (1) includes a bottom assembly (11), with a bottom groove (12) horizontally opened at its lower end. A conical water trough (13) is opened on the upper surface of the bottom assembly (11). A drain pipe (14) is opened at the lower end of the conical water trough (13) and extends downward through the bottom assembly (11). The side wall of the conical water trough (13) also has multiple vertical square grooves (15) arranged in a circumferential array on the outside of the drain pipe (14) for assembling a test piece support. The test piece support includes multiple square tubes (151) that match the vertical square grooves (15). A support platform (152) is provided at the upper end of the square tubes (151). A top plate (19) is provided above the bottom assembly (11). A top opening and a shaft are provided on the top plate (19). The platform (152) has extension plates (153) on both sides, and a lifting ring (154) is provided at the upper end of the extension plate (153). The bottom surface of the vertical groove (15) is also provided with a drainage hole. The lower end of the drainage hole is connected to a drain pipe (16) that penetrates the inner top wall of the bottom groove (12). The upper surface of the bottom component (11) is provided with an inverted L-shaped frame (17). One end of the horizontal part of the inverted L-shaped frame (17) is provided with an ultrasonic liquid level sensor (171). The upper end of the bottom component (11) is provided with a ring plate (18). The outer periphery of the ring plate (18) is provided with a side opening. A pair of sealing doors (181) are installed at the side opening. The outer side of the sealing door (181) is provided with a handle (182). The top plate (19) is located at the upper end of the ring plate (18). The spray unit (2) is installed at the upper end of the test chamber (1), including a linear mechanism (21) vertically fixed to the upper surface of the top plate (19), whose output shaft is installed at the shaft opening. The output end of the linear mechanism (21) is provided with a water collection cylinder (22), the upper end of the water collection cylinder (22) is provided with a water inlet pipe (23), the lower end of the water collection cylinder (22) is provided with multiple first water valves (24), the lower end of the first water valves (24) is provided with a nozzle (25), and multiple sets of fans (29) are arranged in a circular array below the outer periphery of the water collection cylinder (22). The water collection cylinder (22) has multiple horizontal plates (26) arranged in a circular array on its outer periphery. A pair of vertical plates (27) are provided at the lower end of the horizontal plates (26). Multiple support plates (28) are provided between the two vertical plates (27) in the vertical direction. Each fan (29) is set on the support plate (28). During the test, at least one fan (29) in the vertically arranged fan (29) has its axis above the upper end face of the charging pile (4), and at least one fan (29) has its axis below the upper end face of the charging pile (4). The circulation unit (3) is located on one side of the test chamber (1) and includes a cone pipe (31) connected to the lower end of the drain pipe (14). The cone pipe (31) is connected in sequence to a second water valve (33) and a first lift pump (34). The circulation unit (3) also includes a water tank (35). The first lift pump (34) is used to lift water and pump it into the water tank (35). The upper end of the water tank (35) is also provided with a second lift pump (36). The circulation unit (3) also includes a top pipe (37) passing through the top opening. The second lift pump (36) is used to lift water and pump it into the top pipe (37). The lower end of the top pipe (37) is provided with a telescopic pipe (38). The lower end of the telescopic pipe (38) is connected to the water inlet pipe (23). Multiple collection pipes (32) are connected to the outer periphery of the cone pipe (31). The upper end of each collection pipe (32) is also connected to the bottom end of the drain pipe (16).

2. The charging pile water spray testing equipment according to claim 1, characterized in that, The cone tube (31) is fixed to the lower end face of the bottom groove (12), the second water valve (33) is connected to the bottom end of the cone tube (31), and a horizontal pipe (331) is provided at one end of the second water valve (33). The water inlet end of the first lifting pump (34) is connected to one end of the horizontal pipe (331).

3. The charging pile water spray testing equipment according to claim 1, characterized in that, The outlet of the first booster pump (34) is connected to the first inverted L-shaped pipe (341), and the horizontal part of the first inverted L-shaped pipe (341) is connected to the upper part of one side of the water tank (35).

4. The charging pile water spray testing equipment according to claim 1, characterized in that, A water inlet (351) is provided at the upper end of the water tank (35). The inlet end of the second lift pump (36) is connected to a second inverted L-shaped pipe (361). The vertical part of the second inverted L-shaped pipe (361) passes through the water inlet (351) and the bottom end is close to the bottom of the water tank (35). The outlet end of the second lift pump (36) is connected to an inverted U-shaped pipe (362). The top pipe (37) is located at the lower end of a vertical part of the inverted U-shaped pipe (362).

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