Portable charging pile detection equipment

Abstract

The invention belongs to the technical field of electrical instruments and meters, and particularly relates to portable charging pile detection equipment which comprises a box body and a box cover. A detector is mounted in the box body; a buffer pad is mounted between the detector and the bottom surface of the box body, a buffer strip is mounted between the detector and the inner wall of the box body, and cavities are formed in the buffer pad and the buffer strip and are communicated with each other; a ventilation channel is defined by the buffer strip, the inner wall of the box body and the side wall of the detector, a sealing plate with a communicating hole formed in the surface is installed at an opening in the upper end of the ventilation channel, and a discharging channel is formed in the side wall of the box body; the discharge channel is communicated with the ventilation channel, and a protective cover is mounted at a detection interface on the detector; the device is simple in structure, detection equipment can be fully fixed and buffered, the detection equipment is prevented from being damaged due to excessive vibration or impact, and meanwhile, the detection equipment is fully cooled.

Description

Technical Field

[0001] This invention belongs to the field of electrical instrumentation technology, specifically a portable charging pile testing device. Background Technology

[0002] With the development of new energy vehicles, the demand for charging equipment is increasing. However, existing charging equipment is difficult to maintain after installation problems occur. Currently, existing charging equipment is only tested before leaving the factory. In later use, due to the lack of portable testing devices, the maintainability of the equipment is not high. This may lead to some safety hazards in the long-term use of the charging equipment that cannot be detected in time, which may eventually cause dangers such as fires in the charging vehicles.

[0003] Existing charging pile testing devices are prone to overheating during outdoor testing in summer due to prolonged exposure to sunlight. The load also generates heat during testing, which accumulates inside the device and is difficult to dissipate. Prolonged use of these devices can affect their accuracy in detecting charging piles and shorten their lifespan. Furthermore, the shock absorption measures within the existing testing device's enclosure are relatively simple, failing to provide adequate shock absorption in the event of vibration or tipping, potentially damaging internal components and affecting the device's normal operation. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a portable charging pile testing device that provides adequate fixation and buffering for the testing equipment to prevent damage from excessive vibration or impact, while also ensuring sufficient heat dissipation.

[0005] The technical solution adopted by the present invention to solve its technical problem is: the portable charging pile testing device of the present invention includes a box and a box cover connected to each other, and a sealing strip is installed on the box cover; The housing contains a detector, which is equipped with a detection interface, a data transmission port, indicator lights, and a display screen. A buffer pad is installed on the bottom surface of the detector, and the buffer pad is in contact with the bottom surface of the box. A buffer strip is installed on the side of the box, and the buffer strip is in contact with the side of the detector. The buffer pad and the buffer strip have cavities inside, and the cavities between the buffer pad and the buffer strip are interconnected. The detector is suspended in the box by the action of the buffer strip and the buffer pad. The buffer strip, the inner wall of the box, and the side wall of the detector form a ventilation channel. A sealing plate is installed at the upper opening of the ventilation channel. A connecting hole is opened on the sealing plate. The sealing plate is elastic. An exhaust channel is opened in the side wall of the box. Four relatively independent ventilation channels are formed on the four sides of the detector. The lower ends of the exhaust channel and the ventilation channel are interconnected and a fan is installed at the connection. The fan drives the airflow to enter from the upper end of the ventilation channel and then exit from the upper end of the exhaust channel. The detection interface is provided in multiple sets, and a protective cover is installed on the detection interface to seal the inside of the detection interface.

[0006] Preferably, the detector has fins on its side in the area within the ventilation channel, and the width of the fins is smaller than the width of the ventilation channel. The detector has a smooth layer on its side, which is in contact with the buffer strip. The smooth layer is made of a material with a low coefficient of friction.

[0007] Preferably, the sealing plate includes an upper layer and a lower layer, a filter screen is installed between the upper layer and the lower layer, the connecting holes on the upper layer and the lower layer are staggered, the elasticity of the upper layer is less than that of the lower layer, and the upper layer and the lower layer tend to come closer and stick together under their own elasticity.

[0008] Preferably, a filling bladder is installed inside the lid, and a cleaning bladder is installed on the filling bladder. A cleaning hole is opened on the surface of the cleaning bladder. The elasticity of the cleaning bladder is greater than that of the filling bladder. When the lid is closed, the cleaning bladder will contact the detector inside the box first.

[0009] Preferably, the buffer pad and the buffer strip are connected to each other by a connecting pipe, a solenoid valve is installed on the connecting pipe, and a control switch is installed on the detector. The control switch is used to control the opening and closing of the solenoid valve.

[0010] Preferably, the detector is pressed down before the solenoid valve is closed.

[0011] Preferably, a silicone layer is installed on the protective cover. The silicone layer is made of a washable adhesive silicone material. When the protective cover is closed, the silicone layer is squeezed into and fills the internal space of the detection interface. The silicone layer has a placement groove on the side near the protective cover, and a desiccant is installed in the placement groove. The silicone layer has micropores.

[0012] Preferably, the housing has a sealing groove, the sealing strip and the sealing groove cooperate with each other, and the bottom surface of the sealing groove has a discharge hole, which is connected to the discharge channel. The cavities within the buffer pads and buffer strips are filled with liquid fire extinguishing agent.

[0013] The beneficial effects of this invention are as follows: 1. The portable charging pile testing device of the present invention, by setting up a buffer pad, buffer strip, sealing plate, box and testing instrument, makes the testing instrument buffered and fixed in the box by the buffer pad and buffer strip, so that the testing instrument is in a relatively suspended state in the box, improving the shock absorption and buffering effect of the testing device, avoiding excessive vibration, collision or impact, which could damage the internal components of the testing instrument; at the same time, during the testing process, by pressing the testing instrument and closing the solenoid valve, the buffer pad and buffer strip are made relatively independent and the rigidity is increased, ensuring that the testing instrument is stable in position in the box, and will not shake or swing due to the insertion and removal of the charging gun or the operation of the staff, thus affecting the normal operation of the testing.

[0014] 2. The portable charging pile testing device of the present invention, by setting up a ventilation channel, an exhaust channel, a fan, a sealing plate, a sealing groove and a sealing strip, ensures that the air inlet and outlet are located at the top of the box when dissipating heat, avoiding opening air inlets or outlets on the outside of the box, and preventing external moisture and dust from entering the testing device under harsh environmental conditions.

[0015] 3. The portable charging pile testing device of the present invention, by setting a cover, a cleaning bag, a cleaning hole and a filling bag, when the cover is closed, the cleaning bag will be compressed and spray gas to blow away the surface of the tester, so as to avoid dust and impurities adhering to the surface of the tester and causing scratches on the surface of the tester or the display screen. At the same time, after the cover is closed, the filling bag will fill the space between the cover and the box, further fixing and buffering the tester, and preventing the tester from being damaged by excessive impact.

[0016] 4. The portable charging pile testing device of the present invention, by setting a protective cover, a silicone layer, a desiccant and micropores, allows the silicone layer to be pressed into the testing interface when the protective cover is closed, so as to adhere and clean the dust in the testing interface and absorb the moisture, ensuring that the testing interface is clean and preventing dust and moisture from entering the testing interface and affecting the sensitivity and safety of the testing interface. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the detection device of the present invention; Figure 2 This is a schematic diagram of the detection device of the present invention; the fins on the detector are not shown. Figure 3 This is a schematic diagram of the structure of the buffer pad and buffer bladder in the detection device of the present invention; Figure 4This is a schematic diagram of the detection interface and protective cover in the detection equipment of the present invention; Figure 5 This is a partial structural schematic diagram of the sealing plate in the detection device of the present invention; Figure 6 This is a schematic diagram of the structure of the box cover in the testing equipment of the present invention; Figure 7 yes Figure 4 Enlarged view of a portion of point A in the middle; Figure 8 yes Figure 6 Enlarged view of a section at point B in the middle; In the diagram: 1. Box body, 11. Box cover, 111. Sealing strip, 12. Sealing groove, 121. Discharge hole, 13. Cleaning bag, 131. Filling bag, 14. Detector, 2. Display screen, 21. Data transmission port, 22. Control switch, 23. Indicator light, 24. Detection interface, 3. Protective cover, 31. Silicone layer, 32. Micropores, 321. Placement slot, 322. Desiccant, 33. Sealing plate, 4. Upper layer, 41. Lower layer, 42. Filter screen, 43. Connecting hole, 44. Buffer pad, 5. Buffer strip, 51. Connecting pipe, 52. Solenoid valve, 53. Ventilation channel, 6. Discharge channel, 61. Fan, 62. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 8 As shown, the portable charging pile testing device of the present invention includes a box body 1 and a box cover 11 connected to each other, and a sealing strip 111 is installed on the box cover 11; The housing 1 is equipped with a detector 2, which has a detection interface 3, a data transmission port 22, an indicator light 24 and a display screen 21. A buffer pad 5 is installed on the bottom surface of the detector 2. The buffer pad 5 is in contact with the bottom surface inside the box 1. A buffer strip 51 is installed on the side of the box 1. The buffer strip 51 is in contact with the side of the detector 2. The buffer pad 5 and the buffer strip 51 have cavities inside. The cavities between the buffer pad 5 and the buffer strip 51 are interconnected. The detector 2 is suspended inside the box 1 by the action of the buffer strip 51 and the buffer pad 5. The buffer strip 51, the inner wall of the housing 1, and the side wall of the detector 2 form a ventilation channel 6. A sealing plate 4 is installed at the upper opening of the ventilation channel 6. A connecting hole 44 is provided on the sealing plate 4. The sealing plate 4 is elastic. An exhaust channel 61 is provided in the side wall of the housing 1. Four relatively independent ventilation channels 6 are formed on the four sides of the detector 2. The lower ends of the exhaust channel 61 and the ventilation channel 6 are interconnected, and a fan 62 is installed at the connection. The fan 62 drives the airflow to enter from the upper end of the ventilation channel 6 and then exit from the upper end of the exhaust channel 61. The detection interface 3 is provided with multiple sets, and a protective cover 31 is installed on the detection interface 3 to seal the inside of the detection interface 3; During testing, after opening the protective cover 31, insert the charging gun into the testing interface 3. Then, wait for the electrical instrument tester 2 to automatically run the testing scheme and obtain the test results. Afterward, view the test results on the display screen 21 on the electrical instrument tester 2. Meanwhile, by setting multiple sets of testing interfaces 3 on the electrical instrument testing instrument 2, the testing equipment can test various types of charging piles, expanding the scope of application of the testing equipment. At the same time, a protective cover 31 is installed at the testing interface 3 to protect the testing interface 3 and prevent the testing interface 3 from being directly and continuously exposed to the external environment, which would cause dust and moisture to enter the testing interface 3, affecting the sensitivity of the testing interface 3 and creating safety hazards. Meanwhile, when the testing equipment is subjected to vibration or accidental tipping, the electrical instrument 2 used for testing will be buffered and fixed by the buffer pad 5 and buffer strip 51 inside the housing 1, so that the electrical instrument 2 is in a relatively suspended state inside the housing 1, avoiding damage to the internal components of the electrical instrument 2 due to excessive vibration or collision. Meanwhile, since the cavities in the buffer pad 5 and the buffer strip 51 are interconnected, the forces acting on each side of the electrical instrument 2 are the same, thereby keeping the instrument 2 as horizontal as possible inside the housing 1 to maintain a stable position, thereby reducing the impact of uneven ground on the testing equipment and reducing the possibility of accidental tipping, thus protecting the testing equipment. At the same time, when the electrical instrument detector 2 is performing testing, the fan 62 inside the housing 1 starts synchronously. Outside air will pass through the connecting hole 44 on the sealing plate 4 and enter the ventilation channel 6 downwards. After that, the air enters the exhaust channel 61 and flows upwards to be discharged. At the same time, when the outside air flows in the ventilation channel 6, it will fully contact the side of the electrical instrument detector 2 and carry away the heat. Meanwhile, since a sealing plate 4 is installed at the upper end of the ventilation channel 6, the incoming air is intercepted and filtered by the sealing plate 4, reducing the entry of dust and impurities into the ventilation channel 6 and affecting the heat dissipation effect. At the same time, since the air enters and exits from the upper end of the box 1 during heat dissipation, and no ventilation openings are opened on the external side of the box 1, the internal space of the box 1 is relatively sealed when the box cover 11 is closed, preventing external moisture and dust from entering and ensuring the safety of the electrical instruments and meters used for testing inside the box 1. Meanwhile, since there are no ventilation openings on the outer side of the enclosure 1, when the testing equipment is placed on the ground near the charging pile for testing, the testing equipment can ignore most of the relatively harsh ground environment, such as the ground with water accumulation after rain or the ground with heavy dust accumulation in dry weather, so that the testing equipment can be placed and operated normally, and water and dust can be prevented from entering the testing equipment.

[0021] In one embodiment of the present invention, fins are provided on the side of the detector 2 in the area within the ventilation channel 6, and the width of the fins is smaller than the width of the ventilation channel 6. A smooth layer is provided on the side of the detector 2, and the smooth layer is in contact with the buffer strip 51. The smooth layer is made of a material with a low coefficient of friction. The fins on the side of the detector 2 increase the heat conduction area, promote the dissipation of heat generated by the detector 2 and the load during operation, and ensure good heat dissipation and cooling effect of the testing equipment. At the same time, the width of the fins is relatively small to prevent the detector 2 from being displaced relative to the inner wall of the housing 1 when subjected to external vibration, so as to prevent the fins from contacting or colliding with the inner wall of the housing 1 and causing damage. Meanwhile, by setting a smooth layer on the side of the electrical instrument detector 2, the detector 2 and the buffer strip 51 are relatively isolated and not fixedly connected. This allows relative sliding between the detector 2 and the buffer strip 51 when the detection equipment is affected by external vibration and the electrical instrument detector 2 moves relative to each other, reducing friction between the detector 2 and the buffer strip 51 and reducing damage caused by excessive pulling of the detector 2 on the buffer strip 51 during the buffering process. Meanwhile, since a sealing plate 4 is installed between the detector 2 and the upper end of the inner wall of the housing 1, the sealing plate 4 will restrict the position of the detector 2 during vibration. While ensuring the vibration reduction and buffering effect, it avoids excessive relative sliding between the detector 2 and the buffer strip 51. For example, if the detector 2 collides upward with the housing cover 11 or falls out of the housing 1, it will cause damage to the electrical instrument detector 2. At the same time, since there is relative sliding between the electrical instrument detector 2 and the buffer strip 51, and the buffer pad 5 is installed on the bottom surface of the detector 2, the detector 2 can be easily removed from the housing 1 when inspecting, maintaining, or calibrating the electrical instrument detector 2, avoiding damage to the testing equipment during the disassembly process.

[0022] In one embodiment of the present invention, the sealing plate 4 includes an upper layer 41 and a lower layer 42. A filter screen 43 is installed between the upper layer 41 and the lower layer 42. The connecting holes 44 on the upper layer 41 and the lower layer 42 are staggered. The elasticity of the upper layer 41 is less than that of the lower layer 42. Under the action of their own elasticity, the upper layer 41 and the lower layer 42 tend to be close to each other and stick together. Because the lower layer 42 and the upper layer 41 tend to stick together under their own elasticity, when the testing equipment has not started testing and the fan 62 has not started, the upper layer 41 and the lower layer 42 in the closed plate 4 stick together and press the filter screen 43, so that the gap between the connecting holes 44 on the upper layer 41 and the lower layer 42 is small and the connecting holes 44 are in a closed state, thus preventing dust and moisture from the outside from entering the ventilation channel 6 after the box cover 11 of the testing equipment has been open for a long time. At the same time, when the fan 62 is started, a negative pressure is generated in the ventilation channel 6, causing the upper layer 41 and the lower layer 42 to deform under atmospheric pressure. Since the elasticity of the upper layer 41 is less than that of the lower layer 42, the deformation of the lower layer 42 is greater than that of the upper layer 41. That is, the upper layer 41 and the lower layer 42 separate from each other and form a large gap, so that the outside air can enter the ventilation channel 6 through the connecting holes 44 on the upper layer 41 and the lower layer 42 in sequence. At the same time, the air passing through the sealing plate 4 is filtered by the filter screen 43 between the upper layer 41 and the lower layer 42 to prevent dust and impurities from entering the ventilation channel 6.

[0023] In one embodiment of the present invention, a filling bladder 14 is installed inside the box cover 11, and a cleaning bladder 13 is installed on the filling bladder 14. A cleaning hole 131 is opened on the surface of the cleaning bladder 13. The elasticity of the cleaning bladder 13 is greater than that of the filling bladder 14. When the box cover 11 is closed, the cleaning bladder 13 will first contact the detector 2 inside the box body 1. When the cover 11 is closed, the cleaning bag 13 on the cover 11 will first come into contact with the electrical instrument detector 2 inside the box 1, causing the cleaning bag 13 to be squeezed and the gas inside the cleaning bag 13 to be ejected from the cleaning hole 131. At the same time, since the cleaning hole 131 is inclined and faces the direction of the cover 11 closing, the air ejected from the cleaning bag 13 will blow away the surface of the electrical instrument detector 2, so that the dust and impurities that fall on the surface of the electrical instrument detector 2 during the testing process are blown away, ensuring that the surface of the detector 2 is clean and avoiding dust and impurities from contaminating or scratching the surface of the detector 2 and the surface of the display screen 21. Meanwhile, since the cleaning bladder 13 is installed on the filling bladder 14, and the elasticity of the cleaning bladder 13 is greater than that of the filling bladder 14, the air inside the cleaning bladder 13 is completely squeezed out and the cleaning bladder 13 is compressed and attached to the surface of the filling bladder 14. At this time, the cleaning bladder 13 on the filling bladder 14 can be regarded as a layer of bladder wall and can be ignored. Afterwards, as the box cover 11 is closed, the filling bladder 14 will contact and fill the surface of the detector 2, thereby limiting and protecting the detector 2, and preventing the detector of electrical instruments from being affected by external vibration and impact during the transportation and storage of the testing equipment, thus preventing damage. Meanwhile, after the lid 11 is opened, the filling bladder 14 will return to its original shape under the internal pressure and its own elasticity, and the cleaning bladder 13 will draw outside air into its interior through the cleaning hole 131 under its own elasticity until it returns to its original shape.

[0024] In one embodiment of the present invention, the buffer pad 5 and the buffer strip 51 are connected to each other by a connecting pipe 52. A solenoid valve 53 is installed on the connecting pipe 52, and a control switch 23 is installed on the detector 2. The control switch 23 is used to control the opening and closing of the solenoid valve 53. Since the detector 2 is suspended inside the housing 1 by buffer strips 51 and buffer pads 5, and these buffer strips 51 and buffer pads 5 are relatively easy to deform to buffer vibration, the detector 2 is easily affected by the large force exerted by the operator during the insertion of the charging gun and the testing process, causing it to shake or shift. This affects the positional stability of the detector 2 inside the housing 1 and the normal use of the testing equipment. At the same time, after the housing cover 11 is opened, the solenoid valve 53 is closed by the control switch 23 on the detector 2, so that the buffer strips 51 and buffer pads 5 are no longer interconnected. This makes each buffer strip 51 and buffer pad 5 independent, increasing the difficulty of deformation between the buffer pads 5 and buffer strips 51 and increasing their rigidity. This increases the overall integrity between the detector 2 and the housing 1, ensuring the stability of the detector 2 during operation and preventing it from moving due to external forces, thus ensuring the smooth progress of the testing work.

[0025] In one embodiment of the present invention, the solenoid valve 53 is pressed down on the detector 2 before it is closed; When the detector 2 is pressed, it moves downward, compressing the buffer pad 5. The working medium inside the buffer pad 5 enters the buffer strip 51 through the connecting pipe 52, increasing the pressure inside the buffer strip 51 and causing it to expand. At this time, the expanded buffer strip 51 further fixes the detector 2, reducing the possibility of the detector 2 moving. At the same time, due to the compression of the buffer pad 5 and the expansion of the buffer strip 51, the margin for further deformation of the buffer pad 5 and buffer strip 51 is reduced. This significantly increases the difficulty of deformation after the solenoid valve 53 is closed, increasing the rigidity of the buffer pad 5 and buffer strip 51, locking the position of the detector 2 inside the housing 1, improving the stability of the detector 2 inside the housing 1, and ensuring the smooth progress of the testing work.

[0026] As one embodiment of the present invention, a silicone layer 32 is installed on the protective cover 31. The silicone layer 32 is made of a washable adhesive silicone material. When the protective cover 31 is closed, the silicone layer 32 is squeezed into and fills the internal space of the detection interface 3. The silicone layer 32 has a placement groove 322 on the side near the protective cover 31, and a desiccant 33 is installed in the placement groove 322. The silicone layer 32 has micropores 321. When the protective cover 31 is closed, the silicone layer 32 is pressed into the detection interface 3. The silicone layer 32 uses its own adhesiveness to adhere to the dust and impurities that enter the detection interface 3 when the detection equipment is used, preventing them from accumulating inside the detection interface 3. Then, when the protective cover 31 is opened again, the silicone layer 32 carries the adhered dust and impurities out of the detection interface 3, thereby ensuring that the inside of the detection interface 3 is clean and preventing dust and impurities from entering the detection interface 3 from affecting the sensitivity of the detection interface 3 and the accuracy of the detection results. Meanwhile, since desiccant 33 is installed in the placement groove 322 on the silicone layer 32, when the protective cover 31 is closed, the water vapor that seeps into the detection interface 3 will come into contact with the desiccant 33 along the micropores 321 on the silicone layer 32 and be absorbed, thereby ensuring that the inside of the detection interface 3 is dry and preventing water vapor from seeping in and causing corrosion on the surface of the terminals inside the detection interface 3, which would affect the sensitivity and safety of the detection interface 3. Meanwhile, since the protective cover 31 is kept closed most of the time, it can reduce the time that the desiccant 33 is exposed to the outside world and extend the service life of the desiccant 33. At the same time, since the silica gel layer 32 is made of washable adhesive silica gel material, when there is too much dust and impurities adhering to the surface of the silica gel layer 32, the staff can disassemble and clean the silica gel layer 32 to remove the dust and impurities adhering to its surface.

[0027] In one embodiment of the present invention, a sealing groove 12 is provided on the housing 1, and the sealing strip 111 and the sealing groove 12 cooperate with each other. A discharge hole 121 is provided on the bottom surface of the sealing groove 12, and the discharge hole 121 is connected to the discharge channel 61. The cavities inside the buffer pad 5 and buffer strip 51 are filled with liquid fire extinguishing agent; When the lid 11 is closed, the sealing strip 111 is pressed into the sealing groove 12, which improves the sealing effect between the lid 11 and the box body 1 and prevents external dust and moisture from seeping in during the storage or transportation of the testing equipment. At the same time, since the discharge hole 121 at the upper end of the discharge channel 61 is located on the bottom surface inside the sealing groove 12, when the lid 11 is closed, the sealing strip 111 will also seal the discharge channel 61 to prevent external dust and moisture from seeping in and improve the sealing effect between the lid 11 and the box body 1. Meanwhile, the liquid extinguishing agent filled in the buffer pad 5 and buffer strip 51 serves as the working medium, such as commercially available water-based extinguishing agents suitable for Class E fires. When the testing equipment is in normal use, the extinguishing agent in the buffer pad 5 and buffer strip 51 can absorb and transfer some heat, improving the heat dissipation effect of the testing equipment. In the event of an accident and the testing equipment catches fire, the extinguishing agent in the buffer pad 5 and buffer strip 51 can be released in time to delay or extinguish the fire and reduce losses.

[0028] The specific workflow is as follows: During testing, after opening the protective cover 31, insert the charging gun into the testing interface 3, and then wait for the electrical instrument testing instrument 2 to automatically run the testing scheme and obtain the test results. Meanwhile, by setting multiple sets of testing interfaces 3 in the electrical instrument testing instrument 2, the testing equipment can test various types of charging piles. At the same time, a protective cover 31 is installed at the testing interface 3 to protect the testing interface 3. Meanwhile, when the testing equipment is subjected to vibration or accidental tipping, the electrical instrument 2 used for testing will be buffered and fixed by the buffer pad 5 and buffer strip 51 inside the housing 1, so that the electrical instrument 2 is in a relatively suspended state inside the housing 1. Meanwhile, since the cavities in the buffer pad 5 and the buffer strip 51 are interconnected, the forces acting on each side of the electrical instrument 2 are the same, thereby keeping the instrument 2 as horizontal as possible inside the housing 1 to maintain positional stability, reduce the impact of uneven ground on the testing equipment, and reduce the possibility of accidental tipping. At the same time, when the electrical instrument detector 2 is performing testing, the fan 62 inside the housing 1 starts synchronously. Outside air will pass through the connecting hole 44 on the sealing plate 4 and enter the ventilation channel 6 downwards. After that, the air enters the exhaust channel 61 and flows upwards to be discharged. At the same time, when the outside air flows in the ventilation channel 6, it will fully contact the side of the electrical instrument detector 2 and carry away the heat. Meanwhile, since a sealing plate 4 is installed at the upper end of the ventilation channel 6, the incoming air is intercepted and filtered by the sealing plate 4, reducing dust and impurities from entering the ventilation channel 6. Also, since the air enters and exits from the upper end of the box 1 during heat dissipation, and no ventilation openings are opened on the outer side of the box 1, the internal space of the box 1 is relatively sealed when the box cover 11 is closed, preventing external moisture and dust from entering. Meanwhile, since there are no ventilation openings on the outer side of the enclosure 1, when the testing equipment is placed on the ground near the charging pile for testing, the testing equipment can ignore most of the relatively harsh ground environment, such as the ground with water accumulation after rain or the ground with heavy dust accumulation in dry weather, so that the testing equipment can be placed and work normally. The fins on the side of the detector 2 increase the heat conduction area, promoting the dissipation of heat generated by the detector 2 and the load during operation. At the same time, the width of the fins is relatively small, avoiding contact or collision between the fins and the inner wall of the housing 1. Meanwhile, by setting a smooth layer on the side of the electrical instrument detector 2, the detector 2 and the buffer strip 51 are relatively isolated from each other and are not fixedly connected. Meanwhile, since a sealing plate 4 is installed between the detector 2 and the upper end of the inner wall of the housing 1, the sealing plate 4 will restrict the position of the detector 2 during vibration. While ensuring the vibration reduction and buffering effect, it will prevent excessive relative sliding between the detector 2 and the buffer strip 51. If the detector 2 collides upward with the housing cover 11 or falls out of the housing 1, it will cause damage to the electrical instrument detector 2. At the same time, since there is relative sliding between the electrical instrument detector 2 and the buffer strip 51, and the buffer pad 5 is installed on the bottom surface of the detector 2, the detector 2 can be easily removed from the housing 1 when inspecting, maintaining and calibrating the electrical instrument detector 2. When the testing equipment has not started testing and the fan 62 has not been started, the upper layer 41 and the lower layer 42 inside the sealing plate 4 are close to each other and press the filter screen 43 tightly, so that the gap between the connecting holes 44 on the upper layer 41 and the lower layer 42 is small and the connecting holes 44 are in a closed state. At the same time, when the fan 62 is started, a negative pressure is generated in the ventilation channel 6, causing the upper layer 41 and the lower layer 42 to deform under atmospheric pressure. Since the elasticity of the upper layer 41 is less than that of the lower layer 42, the deformation of the lower layer 42 is greater than that of the upper layer 41. That is, the upper layer 41 and the lower layer 42 separate from each other and form a large gap, so that the outside air can enter the ventilation channel 6 through the connecting holes 44 on the upper layer 41 and the lower layer 42 in sequence. At the same time, the air passing through the closed plate 4 is filtered through the filter screen 43 between the upper layer 41 and the lower layer 42. When the cover 11 is closed, the cleaning bag 13 on the cover 11 will first come into contact with the electrical instrument detector 2 inside the box 1, causing the cleaning bag 13 to be squeezed and the gas inside the cleaning bag 13 to be ejected from the cleaning hole 131. At the same time, since the cleaning hole 131 is tilted and faces the direction of the cover 11 closing, the air ejected from the cleaning bag 13 will sweep the surface of the electrical instrument detector 2. Meanwhile, since the cleaning bladder 13 is installed on the filling bladder 14, and the elasticity of the cleaning bladder 13 is greater than that of the filling bladder 14, the air inside the cleaning bladder 13 is completely squeezed out and the cleaning bladder 13 is compressed and attached to the surface of the filling bladder 14. At this time, the cleaning bladder 13 on the filling bladder 14 can be regarded as a layer of bladder wall and can be ignored. Afterwards, as the box cover 11 is closed, the filling bladder 14 will contact and fill the surface of the detector 2, limiting and protecting the detector 2. Meanwhile, after the lid 11 is opened, the filling bladder 14 will return to its original shape under the internal pressure and its own elasticity, and the cleaning bladder 13 will draw outside air into its interior through the cleaning hole 131 under its own elasticity until it returns to its original shape. After the test equipment opens the box cover 11, the solenoid valve 53 is closed by the control switch 23 on the tester 2, so that the buffer strip 51 and the buffer pad 5 are no longer connected to each other, thereby making each buffer strip 51 and buffer pad 5 independent of each other, increasing the difficulty of deformation between the buffer pad 5 and the buffer strip 51 and increasing the rigidity of the buffer pad 5 and the buffer strip 51, increasing the integrity between the tester 2 and the box 1, ensuring that the tester 2 is stable in position when working and is not easily moved by external forces; When the detector 2 is pressed, it moves downward, compressing the buffer pad 5. The working medium inside the buffer pad 5 enters the buffer strip 51 through the connecting pipe 52, increasing the pressure inside the buffer strip 51 and causing it to expand. At this time, the expanded buffer strip 51 further fixes the detector 2, reducing the possibility of the detector 2 moving. At the same time, due to the compression of the buffer pad 5 and the expansion of the buffer strip 51, the margin for further deformation of the buffer pad 5 and the buffer strip 51 is reduced. This increases the difficulty of deformation after the solenoid valve 53 is closed, increasing the rigidity of the buffer pad 5 and the buffer strip 51, locking the position of the detector 2 in the housing 1, and improving the stability of the detector 2 in the housing 1. When the protective cover 31 is closed, the silicone layer 32 will be pressed into the detection interface 3. The silicone layer 32 will use its own adhesiveness to adhere to the dust and impurities that enter the detection interface 3 when the detection equipment is used. Then, when the protective cover 31 is opened again, the silicone layer 32 will carry the adhered dust and impurities out of the detection interface 3. Meanwhile, when the protective cover 31 is closed, the moisture that seeps into the detection interface 3 will come into contact with the desiccant 33 along the micropores 321 on the silicone layer 32 and be absorbed, ensuring that the inside of the detection interface 3 is dry. Meanwhile, since the protective cover 31 is kept closed most of the time, it can reduce the time that the desiccant 33 is exposed to the outside world and extend the service life of the desiccant 33. At the same time, since the silica gel layer 32 is made of washable adhesive silica gel material, when there is too much dust and impurities adhering to the surface of the silica gel layer 32, the staff can disassemble the silica gel layer 32 for cleaning and remove the dust and impurities adhering to its surface. When the lid 11 is closed, the sealing strip 111 is pressed into the sealing groove 12, which improves the sealing effect between the lid 11 and the box body 1. At the same time, since the discharge hole 121 at the upper end of the discharge channel 61 is located on the bottom surface inside the sealing groove 12, the sealing strip 111 will close the discharge channel 61 together when the lid 11 is closed. Meanwhile, the liquid extinguishing agent filled in the buffer pad 5 and buffer strip 51 serves as the working medium, such as commercially available water-based extinguishing agents suitable for Class E fires. When the testing equipment is in normal use, the extinguishing agent in the buffer pad 5 and buffer strip 51 can absorb and transfer some heat, improving the heat dissipation effect of the testing equipment. In the event of an accident and the testing equipment catches fire, the extinguishing agent in the buffer pad 5 and buffer strip 51 can be released in time to delay or extinguish the fire and reduce losses.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable charging pile testing device, comprising a box (1) and a box cover (11) connected to each other, wherein a sealing strip (111) is installed on the box cover (11); The housing (1) is equipped with a detector (2), which has a detection interface (3), a data transmission port (22), an indicator light (24) and a display screen (21). Its features are: A buffer pad (5) is installed on the bottom surface of the detector (2). The buffer pad (5) is in contact with the bottom surface inside the box (1). A buffer strip (51) is installed on the side inside the box (1). The buffer strip (51) is in contact with the side of the detector (2). The buffer pad (5) and the buffer strip (51) have cavities inside. The cavities between the buffer pad (5) and the buffer strip (51) are interconnected. The detector (2) is suspended inside the box (1) by the action of the buffer strip (51) and the buffer pad (5). The buffer strip (51), the inner wall of the box (1), and the side wall of the detector (2) form a ventilation channel (6). A sealing plate (4) is installed at the upper opening of the ventilation channel (6). A connecting hole (44) is provided on the sealing plate (4). The sealing plate (4) is elastic. An exhaust channel (61) is provided in the side wall of the box (1). Four relatively independent ventilation channels (6) are formed on the four sides of the detector (2). The lower ends of the exhaust channel (61) and the ventilation channel (6) are connected to each other and a fan (62) is installed at the connection. The fan (62) drives the airflow to enter from the upper end of the ventilation channel (6) and then exit from the upper end of the exhaust channel (61). The detection interface (3) is provided with multiple sets, and a protective cover (31) is installed on the detection interface (3) to seal the inside of the detection interface (3).

2. The portable charging pile testing device according to claim 1, characterized in that: The detector (2) has fins on its side in the area within the ventilation channel (6), and the width of the fins is smaller than the width of the ventilation channel (6). The detector (2) has a smooth layer on its side, which is in contact with the buffer strip (51). The smooth layer is made of a material with a low coefficient of friction.

3. The portable charging pile testing device according to claim 1, characterized in that: The sealing plate (4) includes an upper layer (41) and a lower layer (42). A filter screen (43) is installed between the upper layer (41) and the lower layer (42). The connecting holes (44) on the upper layer (41) and the lower layer (42) are staggered. The elasticity of the upper layer (41) is less than that of the lower layer (42). Under the action of their own elasticity, the upper layer (41) and the lower layer (42) tend to be close to each other and stick together.

4. The portable charging pile testing device according to claim 1, characterized in that: A filling bladder (14) is installed inside the lid (11), and a cleaning bladder (13) is installed on the filling bladder (14). A cleaning hole (131) is opened on the surface of the cleaning bladder (13). The elasticity of the cleaning bladder (13) is greater than that of the filling bladder (14). When the lid (11) is closed, the cleaning bladder (13) will first contact the detector (2) inside the box (1).

5. The portable charging pile testing device according to claim 1, characterized in that: The buffer pad (5) and buffer strip (51) are connected to each other by a connecting pipe (52). A solenoid valve (53) is installed on the connecting pipe (52). A control switch (23) is installed on the detector (2). The control switch (23) is used to control the opening and closing of the solenoid valve (53).

6. The portable charging pile testing device according to claim 5, characterized in that: Before the solenoid valve (53) is closed, press the detector (2) downwards.

7. The portable charging pile testing device according to claim 1, characterized in that: A silicone layer (32) is installed on the protective cover (31). The silicone layer (32) is made of a washable adhesive silicone material. When the protective cover (31) is closed, the silicone layer (32) is squeezed into and fills the internal space of the detection interface (3). The silicone layer (32) has a placement groove (322) on the side near the protective cover (31), and a desiccant (33) is installed in the placement groove (322). The silicone layer (32) has micropores (321).

8. The portable charging pile testing device according to claim 1, characterized in that: The housing (1) is provided with a sealing groove (12), the sealing strip (111) and the sealing groove (12) cooperate with each other, the bottom surface of the sealing groove (12) is provided with a discharge hole (121), and the discharge hole (121) is connected to the discharge channel (61). The cavities within the buffer pad (5) and buffer strip (51) are filled with liquid fire extinguishing agent.

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