Mobile alternating current charging pile tester and test method

Abstract

The invention discloses a mobile AC charging pile tester and a test method, the mobile AC charging pile tester comprises a box body, the bottom of the box body is provided with moving wheels through bolts, and the top of a power box is electrically connected with a test mechanism; the supporting seats are symmetrically arranged on the two sides of the upper end of the box body, a box cover is rotationally installed on the outer sides of the supporting seats, and the grab rail is connected with the box body through a limiting mechanism; and the cooling fan is installed on the inner wall of the box body, air inlet holes are reserved in the inner wall of the box body, and the connecting cavity is formed in the box body. According to the mobile alternating current charging pile tester and the testing method, mobile pushing is adopted, the tester can be conveniently and rapidly transferred when charging piles at different positions are tested, repeated switching and stooping for tester operation are not needed, a testing interface can be protected in rainy days, the interface is prevented from being affected by dust and rainwater, and the testing efficiency is improved. Meanwhile, heat generated by equipment can be dissipated in the testing process, and stable operation of the tester is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of charging pile testing, and in particular to a mobile AC charging pile tester and a testing method. Background Art

[0002] An AC charging pile is a charging device that uses conduction to provide AC power to electric vehicles. The charging pile needs to be tested before it is put into use or after it has been used for a period of time to detect and evaluate the performance of the DC charging pile. The output voltage, current, power and other parameters of the charging pile can be accurately measured to ensure the normal operation and safe use of the charging pile. For example, a portable charging pile tester with publication number CN113339672B belongs to the technical field of detection equipment and includes a shell, a driving mechanism and a lifting mechanism; the shell includes a front shell and a rear shell, the rear shell is fixedly connected to the front shell, the front shell and the rear shell are installed on the bottom body, and a tester is arranged in the front shell. The detection of the charging pile is automatically and conveniently completed through the driving mechanism and the lifting mechanism. The driving mechanism uses the fork assembly to shift the position of the driving gear that cooperates with the lifting mechanism, and adjusts the motion state of the lifting mechanism in real time. It can quickly adjust the position of the display screen, which helps to better display the detection results. For example, a multifunctional charging pile tester with publication number CN115166316A relates to the field of charging pile testing technology, including a protective component. By setting the protective component, the height of the tester can be increased to prevent rainwater from entering the tester on rainy days; by setting the adjustment component, the detection head can be moved to the desired position to facilitate user operation; by setting the shock-absorbing clamping spring, the tester can be prevented from being damaged by vibration and impact during transportation. However, the above charging pile tester still has the following disadvantages in actual use: 1. Most traditional charging pile testers are portable. When charging piles at different locations need to be tested, the tester needs to be opened and closed and carried repeatedly, and the operator needs to bend over frequently to operate, which increases the workload and is inconvenient to quickly transport the tester; 2. At the same time, after the traditional charging pile tester is turned on for testing, all its connectors are exposed to the outside, which will not only be invaded by dust, but also have no waterproof function, so the charging pile cannot be tested on rainy days.

[0003] In view of the above problems, it is urgent to carry out innovative design based on the original tester. Summary of the invention

[0004] The purpose of the present invention is to provide a mobile AC charging pile tester and testing method to solve the problem mentioned in the background technology that the traditional charging pile tester is not convenient for rapid transportation of the tester, and all the connectors of the tester are exposed when in use, which is not only susceptible to dust intrusion, but also lacks waterproof function.

[0005] To achieve the above object, the present invention provides the following technical solution: a mobile AC charging pile tester, comprising a box, the bottom of which is provided with moving wheels by bolts, and a power box is arranged inside the box, the top of the power box is electrically connected to a test mechanism, and the test mechanism is installed on the top of the box; It also includes: a support seat symmetrically arranged on both sides of the upper end of the box body, a box cover is rotatably mounted on the outer side of the support seat, and a handrail is fixed at the edge of the top of the box cover, the handrail is connected to the box body through a limiting mechanism, and the limiting mechanism is used for locking between the box body and the box cover; A cooling fan is installed on the inner wall of the box body. An air inlet hole is reserved on the inner wall of the box body, and the air inlet hole is communicated with a connecting cavity. The connecting cavity is arranged in the box body, and a heat dissipation component is arranged inside the connecting cavity. The heat dissipation component transmits the gas generated by the cooling fan to the test mechanism.

[0006] Preferably, the limiting mechanism includes a movable rod arranged on the inner side of the handrail rod, and both ends of the movable rod are slidably connected to the handrail rod, and the center of the movable rod and one end of the guide rope are fixedly connected. When the movable rod is pulled, it can slide on the handrail rod and drive the guide rope to slide on the box cover.

[0007] Preferably, the other end of the guide rope is connected to a connecting rod, and the outer side of the connecting rod is slidably connected to the support block, and the support block is fixed to the inner wall of the box cover. At the same time, a spring is wound around the outer side of the support block to reset it, and a limiting hole is opened on the box body at the bottom of the support block. The support block and the limiting hole are snap-fitted. When the guide rope is pulled, it can drive the connecting rod to slide on the support block and drive the connecting rod to separate from the limiting hole.

[0008] Preferably, a fixed cavity is opened inside the box cover, and a movable plate is arranged on the inner side of the fixed cavity, and the movable plate forms a sliding structure through the fixed cavity and the box cover. When the charging cable of the charging pile contacts the movable plate, the movable plate can be pushed to slide and be stored in the fixed cavity.

[0009] Preferably, the side of the movable plate is elastically connected to the inner wall of the fixed cavity through a spring, and a through groove is provided on the box cover on the side of the movable plate, and the end of the through groove away from the edge of the box cover is semicircular. The setting of the through groove can limit the charging cable during the test and protect the test interface.

[0010] Preferably, the heat dissipation assembly includes a movable cylinder arranged in the connecting cavity, and the bottom of the movable cylinder is elastically connected to the inner bottom surface of the connecting cavity through a spring, and the bottom of the movable cylinder is open, and the diameters of the lower ends of the movable cylinder and the connecting cavity are larger than the diameter of the upper ends. When the box cover is closed and contacts the movable cylinder, the movable cylinder can be pushed into the connecting cavity, and when the box cover is opened, the movable cylinder extends out of the surface of the box body due to the elasticity of the spring.

[0011] Preferably, the maximum diameter of the movable cylinder is larger than the minimum diameter of the connecting cavity, and the connecting cavity is interconnected through the movable cylinder and the first air outlet, and the first air outlet is opened on the side of the movable cylinder, and a support rod is fixed on the top of the movable cylinder, so that the gas entering the connecting cavity can be transmitted to the interior of the movable cylinder and then discharged from the first air outlet.

[0012] Preferably, the connecting cavity can also be connected to the second air outlet through an air supply channel, and the air supply channel is arranged in the box cover, and the second air outlet is reserved on the inner wall of the box cover. At the same time, the air supply channel and the second air outlet are arranged at positions where the two box covers are close to each other. The gas entering the connecting cavity can also be transmitted to the air supply channel and finally discharged from the second air outlet.

[0013] A testing method for a mobile AC charging pile tester, the testing method comprising the following steps: S1: First, push the device to the designated position through the moving wheels, then open the box cover to expose the test mechanism, and then connect the charging gun of the charging pile to the test mechanism to test the charging pile; S2: When it rains, after connecting the charging gun to the test mechanism, the box cover can be closed to protect the test mechanism, which can not only prevent rain but also will not hinder the test; S3: During the test, the cooling fan runs to dissipate heat for both the power box and the test structure, thus avoiding damage to the equipment during the test under high temperature conditions.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the mobile AC charging pile tester and the test method adopt a mobile push, which is convenient for quickly transferring the tester when testing charging piles at different locations, and there is no need to repeatedly switch on and off and bend over to operate the tester. When it rains, the test interface can be protected to prevent dust and rain from affecting the interface. At the same time, the heat generated by the equipment can be dissipated during the test to ensure the stable operation of the tester. The specific contents are as follows: 1. Pull the movable rod to slide on the handrail, and then drive the connecting rod to rise and separate from the limit hole through the guide rope, so that the box cover can be pulled on the support seat to rotate and open to operate the test mechanism. When it is rainy or dusty, the box cover can be closed after the charging gun is connected. The spring resilience can drive the connecting rod to be stuck in the corresponding limit hole, so that the box cover and the box body can be locked; Furthermore, the box cover can drive the movable plate to contact the charging cable during the closing process, and the movable plate is driven to slide in the fixed cavity through the resistance of the charging cable, and then the through groove limits the charging cable, so that the charging pile can be tested after the box cover is closed, and the external dust and liquid can be prevented from entering and affecting the test mechanism; 2. When the box cover is in the closed state, its bottom edge can contact the support rod, pushing the movable cylinder into the connecting cavity, so that the gas can also enter the gas transmission channel through the gap between the movable cylinder and the connecting cavity, and finally be discharged from the second air outlet and blown to the test mechanism to cool it down. Even when the box cover is closed, the temperature can be prevented from being too high during testing; Furthermore, when the box cover is opened, the resistance to the support rod is released, and the movable cylinder can be driven to rise up and seal the top of the connecting chamber through the resilience of the spring, so that the gas in the connecting chamber can enter the movable cylinder, and then be discharged from the first air outlet and blown onto the test mechanism. In this way, heat dissipation and dust removal can be carried out when the test mechanism is open for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the box cover after opening the box cover of the present invention; Figure 3 It is a schematic diagram of the front cross-section structure of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 This is a schematic diagram of the front cross-section structure of the box cover of the present invention; Figure 6 It is a schematic diagram of the top-sectional structure of the box cover of the present invention; Figure 7 It is a schematic diagram of the side section structure of the present invention; Figure 8 It is a schematic diagram of the structure of the movable cylinder of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the movable cylinder of the present invention; Fig.10 It is a schematic diagram of the structure after the movable cylinder of the present invention is raised.

[0016] In the figure: 1. box body; 2. moving wheels; 3. power box; 4. testing mechanism; 5. support seat; 6. box cover; 7. handrail; 8. movable rod; 9. guide rope; 10. connecting rod; 11. supporting block; 12. limiting hole; 13. fixing cavity; 14. movable plate; 15. through groove; 16. cooling fan; 17. air inlet; 18. connecting cavity; 19. movable cylinder; 20. first air outlet; 21. supporting rod; 22. air transmission channel; 23. second air outlet. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical scheme: a mobile AC charging pile tester, comprising a box body 1, a moving wheel 2 is installed at the bottom of the box body 1 by bolts, and a power box 3 is arranged inside the box body 1, the top of the power box 3 is electrically connected to the test mechanism 4, and the test mechanism 4 is installed on the top of the box body 1; it also includes: a support seat 5, which is symmetrically arranged on both sides of the upper end of the box body 1, a box cover 6 is rotatably installed on the outer side of the support seat 5, and a handrail rod 7 is fixed at the edge of the top of the box cover 6, the handrail rod 7 is interconnected with the box body 1 through a limiting mechanism, and the limiting mechanism is used for locking between the box body 1 and the box cover 6; a cooling fan 16 is installed on the inner wall of the box body 1, an air inlet hole 17 is reserved on the inner wall of the box body 1, and the air inlet hole 17 is communicated with the connecting cavity 18, the connecting cavity 18 is arranged in the box body 1, and a heat dissipation component is arranged inside the connecting cavity 18, and the heat dissipation component transmits the gas generated by the cooling fan 16 to the test mechanism 4.

[0019] Most of the existing charging pile testers are portable. When charging piles at different locations need to be tested, the tester needs to be opened and closed and carried repeatedly, and the operator needs to bend down frequently to operate, which increases the workload and is inconvenient to quickly transport the tester. At the same time, after the charging pile tester is turned on for testing, all its connectors are exposed to the outside, which will not only be invaded by dust, but also have no waterproof function. Therefore, it is impossible to test the charging pile on rainy days. Figure 1-Figure 6As shown, the limiting mechanism includes a movable rod 8 arranged on the inner side of the handrail rod 7, and the two ends of the movable rod 8 are slidably connected to the handrail rod 7, and the center of the movable rod 8 is fixedly connected to one end of the guide rope 9; the other end of the guide rope 9 is connected to a connecting rod 10, and the outer side of the connecting rod 10 is slidably connected to a support block 11, and the support block 11 is fixed to the inner wall of the box cover 6, and at the same time, a spring for resetting the support block 11 is wound around the outer side of the support block 11, and a limiting hole 12 is provided on the box body 1 at the bottom of the support block 11, and the support block 11 and the limiting hole 12 are snap-fitted; a fixed cavity 13 is provided inside the box cover 6, and a movable plate 14 is provided on the inner side of the fixed cavity 13, and the movable plate 14 forms a sliding structure through the fixed cavity 13 and the box cover 6; the side of the movable plate 14 is elastically connected to the inner wall of the fixed cavity 13 by a spring, and a through slot 15 is provided on the box cover 6 on the side of the movable plate 14, and the end of the through slot 15 away from the edge of the box cover 6 is semicircular.

[0020] The tester can be pushed to the specified position through the handrail 7, and then the movable rod 8 is pulled to slide on the handrail 7, and then the guide rope 9 is pulled to drive the connecting rod 10 to slide on the support block 11, so that the connecting rod 10 is separated from the limit hole 12, so that the box cover 6 can be pulled to rotate on the support seat 5, and the two box covers 6 are opened to facilitate the connection of the charging gun and the test mechanism 4, and the same test mechanism 4 can be connected to two charging guns, thereby improving the test efficiency. When it is necessary to detect charging piles at different positions, it is only necessary to push the tester to the corresponding position through the moving wheel 2. There is no need to repeatedly open and close the tester, and there is no need to frequently bend over to operate. When it rains or in dusty weather, the box cover 6 can be closed after the charging gun is connected, and pull the Move the movable rod 8 until the two box covers 6 are in contact and then release and pull. The spring resilience can drive the connecting rod 10 to be stuck in the corresponding limiting hole 12, so that the box cover 6 and the box body 1 can be locked. During the closing process, the box cover 6 can drive the movable plate 14 to contact the charging line, and the resistance of the charging line drives the movable plate 14 to slide in the fixed cavity 13, and then the through groove 15 limits the charging line. In this way, the charging pile can be tested after the box cover 6 is closed, and external dust and liquid can be prevented from entering and affecting the test mechanism 4. After the charging gun is separated from the test mechanism 4, the spring resilience drives the movable plate 14 to re-seal the through groove 15, which will not affect the integrity of the box cover 6.

[0021] Embodiment 2: Most of the existing charging pile testers are used in an open state, so they do not have a heat dissipation structure. When the tester is used in a closed state, the temperature generated at the test position is high and it is easy to affect the equipment. Therefore, there is a lack of a structure for targeted heat dissipation of the test position in a closed state. Therefore, this embodiment adopts the following technical solutions, such as Figure 7-Figure 10As shown, the heat dissipation assembly includes a movable cylinder 19 arranged in the connecting cavity 18, and the bottom of the movable cylinder 19 is elastically connected to the inner bottom surface of the connecting cavity 18 through a spring, and the bottom of the movable cylinder 19 is opened, and the diameters of the lower ends of the movable cylinder 19 and the connecting cavity 18 are larger than the diameters of the upper ends; the maximum diameter of the movable cylinder 19 is larger than the minimum diameter of the connecting cavity 18, and the connecting cavity 18 is interconnected with the first air outlet 20 through the movable cylinder 19, and the first air outlet 20 is opened on the side of the movable cylinder 19, and a support rod 21 is fixed to the top of the movable cylinder 19; the connecting cavity 18 can also be connected to the second air outlet 23 through the air delivery channel 22, and the air delivery channel 22 is arranged in the box cover 6, and the inner wall of the box cover 6 is reserved with the second air outlet 23, and the air delivery channel 22 and the second air outlet 23 are both arranged at positions where the two box covers 6 are close to each other.

[0022] During the operation of the tester, the cooling fan 16 runs synchronously to dissipate heat at the position of the power box 3, and the high-temperature gas is discharged from the bottom of the box body 1. When the box cover 6 is in a closed state, its bottom edge can contact the support rod 21 at the top of the movable cylinder 19, pushing the movable cylinder 19 into the connecting cavity 18, so that part of the gas generated by the operation of the cooling fan 16 can also be transmitted to the connecting cavity 18 through the air inlet 17, and then enter the gas transmission channel 22 through the gap between the movable cylinder 19 and the connecting cavity 18, and finally be discharged from the second air outlet 23 and blown to the test mechanism. 4 is cooled. Even when the box cover 6 is in the closed state, the temperature can be prevented from being too high during testing. After the box cover 6 is closed, it can only prevent the external liquid from entering, and is not in a completely sealed state. Therefore, heat dissipation can be achieved. When the box cover 6 is opened, the resistance to the support rod 21 is released, and the movable cylinder 19 can be driven to rise and block the top of the connecting chamber 18 through the resilience of the spring. In this way, the gas in the connecting chamber 18 can enter the inside of the movable cylinder 19, and then be discharged from the first air outlet 20 and blown onto the test mechanism 4. In this way, heat dissipation and dust removal can be performed when the test mechanism 4 is open for use.

[0023] A testing method for a mobile AC charging pile tester, the testing method comprising the following steps: S1: First, push the device to the designated position through the moving wheel 2, then open the box cover 6 to expose the test mechanism 4, and then connect the charging gun of the charging pile to the test mechanism 4 to realize the test of the charging pile; S2: When it is raining, after the charging gun is connected to the test mechanism 4, the box cover 6 can be closed to protect the test mechanism 4, which can not only play a rainproof effect but also will not hinder the test; S3: During the test, the cooling fan 16 is operated to dissipate heat not only to the power supply box 3 but also to the test mechanism 4, thereby avoiding damage to the equipment during the test under high temperature conditions.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile AC charging pile tester, comprising a box (1), a movable wheel (2) being mounted on the bottom of the box (1) by bolts, a power box (3) being arranged inside the box (1), a top of the power box (3) being electrically connected to a test mechanism (4), and the test mechanism (4) being mounted on the top of the box (1); It is characterized in that Also includes: A support seat (5) is symmetrically arranged on both sides of the upper end of the box body (1); a box cover (6) is rotatably mounted on the outer side of the support seat (5); a handrail (7) is fixed at the edge of the top of the box cover (6); the handrail (7) is connected to the box body (1) through a limiting mechanism, and the limiting mechanism is used to lock the box body (1) and the box cover (6); A heat dissipation fan (16) is installed on the inner wall of the box body (1); an air inlet hole (17) is reserved on the inner wall of the box body (1); the air inlet hole (17) is communicated with a connecting cavity (18); the connecting cavity (18) is arranged in the box body (1); a heat dissipation component is arranged inside the connecting cavity (18); and the heat dissipation component transmits gas generated by the heat dissipation fan (16) to the test mechanism (4).

2. A mobile AC charging pile tester according to claim 1, characterized in that: The limiting mechanism comprises a movable rod (8) arranged inside the handrail rod (7), and both ends of the movable rod (8) are slidably connected to the handrail rod (7), and the center of the movable rod (8) is fixedly connected to one end of the guide rope (9).

3. A mobile AC charging pile tester according to claim 2, characterized in that: The other end of the guide rope (9) is connected to a connecting rod (10), and the outer side of the connecting rod (10) is slidably connected to a support block (11), and the support block (11) is fixed to the inner wall of the box cover (6). At the same time, a spring for returning the support block (11) is wound around the outer side of the support block (11), and a limiting hole (12) is provided on the box body (1) at the bottom of the support block (11), and the support block (11) and the limiting hole (12) are snap-fitted.

4. A mobile AC charging pile tester according to claim 1, characterized in that: A fixed cavity (13) is provided inside the box cover (6), and a movable plate (14) is provided inside the fixed cavity (13), and the movable plate (14) forms a sliding structure through the fixed cavity (13) and the box cover (6).

5. A mobile AC charging pile tester according to claim 4, characterized in that: The side surface of the movable plate (14) is elastically connected to the inner wall of the fixed cavity (13) via a spring, and a through slot (15) is provided on the box cover (6) on the side of the movable plate (14), and the end of the through slot (15) away from the edge of the box cover (6) is semicircular.

6. A mobile AC charging pile tester according to claim 1, characterized in that: The heat dissipation assembly comprises a movable cylinder (19) arranged in a connecting cavity (18), wherein the bottom of the movable cylinder (19) is elastically connected to the inner bottom surface of the connecting cavity (18) via a spring, and the bottom of the movable cylinder (19) is open, and the diameters of the lower ends of the movable cylinder (19) and the connecting cavity (18) are both larger than the diameters of their upper ends.

7. A mobile AC charging pile tester according to claim 6, characterized in that: The maximum diameter of the movable cylinder (19) is greater than the minimum diameter of the connecting cavity (18), and the connecting cavity (18) is connected to the first air outlet (20) through the movable cylinder (19), and the first air outlet (20) is provided on the side of the movable cylinder (19), and a support rod (21) is fixed to the top of the movable cylinder (19).

8. A mobile AC charging pile tester according to claim 7, characterized in that: The connecting cavity (18) can also be connected to the second air outlet (23) via an air delivery channel (22), and the air delivery channel (22) is arranged in the box cover (6), and the second air outlet (23) is reserved on the inner wall of the box cover (6), and the air delivery channel (22) and the second air outlet (23) are both arranged at positions where the two box covers (6) are close to each other.

9. The testing method of a mobile AC charging pile tester according to claim 1, characterized in that: The test method comprises the following steps: S1: first, the device is pushed to a designated position by means of the moving wheels (2), then the box cover (6) is opened to expose the test mechanism (4), and then the charging gun of the charging pile is connected to the test mechanism (4) to implement the test of the charging pile; S2: When it is raining, after the charging gun is connected to the test mechanism (4), the box cover (6) can be closed to protect the test mechanism (4), which can both prevent rain and prevent the test from being hindered; S3: During the test, the cooling fan (16) is operated to dissipate heat from both the power supply box (3) and the test mechanism (4), thereby preventing damage to the equipment during the test under high temperature conditions.

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