Electric energy quality detection device capable of improving heat dissipation effect and detection method thereof

Abstract

The invention discloses an electric energy quality detection device capable of improving a heat dissipation effect and a detection method thereof, and relates to the technical field of electrical performance testing devices. According to the electric energy quality detection device capable of improving the heat dissipation effect and the detection method thereof, a shell is included, a containing box is installed in the shell, the top of the containing box is connected with a heat dissipation box, the top of the heat dissipation box is communicated with an air bag, side cylinders are arranged on the two sides of the air bag, condensation plates are all n-shaped plates, the included angle between each side cylinder and the horizontal plane ranges from 32 degrees to 37 degrees, and the included angle between each side cylinder and the horizontal plane ranges from 32 degrees to 37 degrees. An upper hole, a middle hole, a lower hole and an air guide hole are formed in the two sides of the shell in a penetrating mode, and a heat preservation plate is placed in the cavity. According to the electric energy quality detection device capable of improving the heat dissipation effect and the detection method thereof, the heat dissipation box absorbs heat transferred in the detector and the shell, water vapor enters the air bag and forms an air wall, the air wall can block heat transferred to the outside, the liquefied water vapor returns to the heat dissipation box again, water circulation is formed, and the heat dissipation effect is improved. Heat dissipation of the internal structure of the shell is assisted through heat convection.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical performance testing devices, and in particular to a power quality detection device and a detection method thereof capable of improving heat dissipation effect. Background Art

[0002] As a key component in power systems, the power quality of intelligent large-scale DC converter transformers directly impacts downstream users' electrical equipment. Power quality testing ensures stable, reliable, and compliant power is provided to users, meeting the stringent power quality requirements of diverse users.

[0003] Referring to Chinese Patent Publication No.: CN116840585A, a power quality detection device capable of improving heat dissipation effect includes a detection device housing, a first support plate installed at the bottom end of the detection device housing, a heat dissipation hole is opened in the middle of the top of the first support plate, support columns are installed at the four corners of the bottom end of the first support plate, the bottom end of the support column is connected to a second support plate, heat dissipation plates are installed on both sides of the top end of the second support plate, a mounting hole is opened in the middle of one side of the heat dissipation plate, a heat dissipation fan is installed inside the mounting hole, and the input end of the heat dissipation fan is electrically connected to the output end of the external power supply. By using the first support plate, the heat dissipation hole, the support column and the second support plate in combination, the heat dissipation area of the detection device housing can be increased, and by using the two heat dissipation fans in combination, the air flow rate at the bottom of the detection device housing can be increased, thereby avoiding heat accumulation at the bottom of the detection device housing, which causes the detection device housing to overheat during operation. By heat dissipation and cooling, the stable operation of the detection device housing can be ensured.

[0004] When testing large-scale, intelligent outdoor DC converter transformers, special tests are performed to assess the degree of aging after a long period of operation, or before and after major overhauls to ensure the equipment is in good condition. These tests are generally long and can last from several days to several weeks. The outdoor ambient temperature fluctuates greatly, and the temperature on the sunny side of the electrical performance testing instrument rises sharply. High temperatures can increase the heat generated by the internal components of the electrical performance testing instrument, leading to performance degradation or even failure. Low temperatures can reduce the battery performance of the electrical performance testing instrument, slow the display response, or cause display anomalies. For example, patent publication number CN116840585A uses a cooling fan to reduce the heat at the bottom of the detection device housing. This is mostly suitable for handling high-temperature accumulation indoors, but is difficult to adapt to handling extreme outdoor weather. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a detection device and a detection method for electric energy quality that can improve the heat dissipation effect. The heat transfer from the detector and the shell is absorbed by the heat dissipation box, and water vapor enters the air bag and forms an air wall. The air wall can block the heat transferred from the outside. The liquefied water vapor returns to the heat dissipation box to form a water circulation, and the heat convection assists the heat dissipation of the internal structure of the shell.

[0006] Technical solution: To achieve the above objectives, the present invention is implemented through the following technical solutions: A detection device for electric energy quality that can improve the heat dissipation effect, comprising: a shell, a placement box is installed inside the shell, and the detector is placed in the placement box, the top of the placement box is connected to a heat dissipation box, the top of the heat dissipation box is connected to an air bag, side tubes are provided on both sides of the air bag, and a plurality of condensation plates are distributed equidistantly in the circumferential direction on the inner side of each of the side tubes, each of the condensation plates is connected to the adjacent condensation plates through a connecting plate, an air cavity is provided between the connecting plate and the side tube, and a wind cavity is provided between the condensation plate and the connecting plate, the condensation plates are all "∏"-shaped plates protruding toward the axis of the side tube, the angle between the side tube and the horizontal plane is 32°-37°, upper holes, middle holes, lower holes, and air guide holes are penetrated on both sides of the shell, a cavity is provided in the shell, and an insulation plate is placed in the cavity.

[0007] Preferably, a cover plate is installed on the sunny side of the shell, a rotating plate is installed on the other side of the shell, the inner wall of one end of the shell is connected to the placement box through the bottom plate, a heat conduction groove is opened on the side of the detector, and the heat conduction groove is connected to the heat conduction plate through a heat conduction strip. The heat conduction strip is used to conduct heat from the detector, and the heat conduction plate is used to transfer the heat of the heat conduction strip to the top plate of the placement box.

[0008] Preferably, the heat dissipation box includes: a flat plate, which is arranged directly above the placement box, and the flat plate is connected to a corrugated plate through a side plate, and the corrugated plate is composed of a plurality of curved plates and a plurality of heat-conducting straight plates, and the adjacent sides of the adjacent curved plates are respectively connected to the two sides of a heat-conducting straight plate, and a strip hole is opened through the middle of each of the curved plates, and the middle part of the upper surface of the heat-conducting straight plate is connected to a heat-conducting vertical plate through a heat-conducting arc plate, a channel is provided between the curved plate and the placement box, and an air hole is opened through the middle of the flat plate, and the air hole is connected to the bottom of the airbag.

[0009] Preferably, the heat-conducting arc plate is arranged in the heat dissipation box, the shape of the heat-conducting arc plate is adapted to the shape of the bent plate, and the bottom end of the heat-conducting vertical plate passes through the strip hole and is connected to the top plate of the placement box.

[0010] Preferably, the projection of one side of the channel is arch-shaped, with the arc-shaped opening facing downward, the airbag is a folded airbag, and the material of the airbag is any one of chloroprene rubber, nitrile rubber, and EPDM rubber.

[0011] Preferably, both ends of the side tube are connected to an outer ring, and the inner wall of each outer ring is connected to a plurality of cover strips, and the plurality of cover strips are equidistantly distributed along the circumferential direction of the outer ring, and the end of the cover strip away from the outer ring is connected to the inner ring, and the inner ring is connected to a liquid accumulation box, and one side of the inner ring is penetrated by a plurality of liquid inlets equidistantly distributed in the circumferential direction, and a condensation cavity is provided between the inner walls of the condensation plates, and one end of each liquid inlet penetrates the inner ring and the cover strip and is connected to the condensation cavity, and a liquid outlet is penetrated on the side of the bottom of the liquid accumulation box, and the liquid outlet is connected to the heat dissipation box through a liquid pipe, and the position of the liquid outlet is above the connection between the liquid pipe and the heat dissipation box, the outer ring is used to seal the air cavity, and the cover strip is used to seal the condensation cavity, and a circular hole is penetrated on one side of the other inner ring, and the air bag is connected to the circular hole through the air pipe.

[0012] Preferably, a side air duct is provided between the inner wall of the lower middle part of the shell and the internal structure of the shell, an upper air duct is provided between the top of the airbag and the cover plate, the side tube is provided in the side air duct, the upper hole, the middle hole, the lower hole and the air guide hole constitute a hole group, the middle hole is connected with the channel, the shape of the middle hole is adapted to the shape of the channel, the upper hole is connected with the upper air duct, the lower hole and the air guide hole are both connected with the side air duct, the opening area of the hole of the air guide hole gradually decreases along the direction of the virtual straight line, and the opening area of the air guide hole close to one end of the air hole is smaller than the opening area of the air guide hole away from the air hole.

[0013] Preferably, the insulation plate consists of an insulation side plate and an insulation top plate on the top of the insulation side plate, the thickness of the insulation top plate is greater than the thickness of the insulation side plate, a slot is provided at the bottom of the insulation top plate, the slot is adapted to the side tube, the insulation side plate and the insulation top plate are both made of elastic material, the insulation side plate is placed in the side air duct, the insulation top plate is placed in the upper air duct, a sealing plate is connected to the outer side of the insulation side plate, the sealing plate is used to seal the hole group on the side of the shell.

[0014] A detection method is provided for a detection device for power quality that can improve heat dissipation effect. The detector is placed in a placement box and fixed. The temperature of the detection environment is divided into a high temperature environment, a low temperature environment, and an appropriate temperature according to the temperature. In a high temperature environment, a cover plate is placed on the sunny side, and a heat preservation plate is removed from the side air duct and the upper air duct. The hole group is no longer sealed, and water is injected into the heat dissipation box. The heat in the shell and the heat of the detector are transferred to the heat conduction vertical plate and the heat conduction arc plate through heat conduction. The water temperature in the heat dissipation box rises and evaporates, and the water vapor enters the air bag. The folded air bag expands and stretches upward. A gas isolation layer is constructed between the cover plate and the heat dissipation box to block the external temperature. Through thermal convection, the gas flows through the hole groups on both sides of the shell, taking away the temperature of the heat conduction component, the air bag, and the side tube. The water vapor in the air bag enters a condensation cavity distributed in a scattered manner in the tube. The liquefied small water droplets slide along the inclined side tube into the liquid accumulation box and are transported to the heat dissipation box. In a low temperature environment, the heat preservation plate is not removed to increase the heat insulation effect of the shell.

[0015] Beneficial effects: The present invention provides a detection device and a detection method for power quality that can improve the heat dissipation effect. Compared with the existing technology, it has the following beneficial effects: 1. By setting the detector on the non-sunny side, the external high temperature is prevented from directly acting on the detector. An air bag, a heat dissipation box, and a placement box are sequentially arranged in the shell on the sunny side. The heat dissipation box is used to absorb the heat transferred from the detector and the shell. Water vapor enters the air bag and forms an air wall. The air wall can block the heat transferred from the outside and reduce the heating rate of the heat dissipation box and the detector. The water vapor in the air bag enters the side tube and liquefies. The liquefied water returns to the heat dissipation box to form a water cycle without the need for frequent water addition. An air duct is arranged between the top and the side wall of the shell to facilitate the external wind to enter the shell, and assist the heat dissipation of the internal structure of the shell through heat convection. The overall structure is simple, the cost is low, multiple heat dissipation, and the heat dissipation effect is good.

[0016] 2. Water vapor enters the folding airbag, which expands upward and forms an isolation barrier. Most of the heat on the external sunny side needs to pass through the cover and the airbag before it can be transferred to the water in the heat dissipation box. The thermal conductivity of gas is generally low. When heat tries to pass through the gas layer, due to the large distance between gas molecules, the efficiency of energy transfer by molecular collision during heat conduction is low. In addition, water vapor has a certain absorption and scattering effect on thermal radiation, which can block the transfer of part of the thermal radiation, thereby playing a certain role in heat insulation.

[0017] 3. Water vapor encounters the condensation plate and liquefies into small water droplets. The condensation plate is in the shape of a "∏" character. The surface area of the condensation plate is large and the shape is regular. It is easy to mass produce and install on the inner wall of the cylinder. The side cylinder and the condenser tube are both inclined. The small water droplets on the condensation plate slide along the inclined condenser tube wall to the liquid accumulation box and then flow into the heat dissipation box, completing the water-water vapor-water cycle. Only a certain amount of water is needed to complete the heat dissipation work.

[0018] 4. The wind flows along the wind cavity, and the condensation plates are all "∏"-shaped plates protruding toward the axis of the side tube. The contact area between the condensation plates and the wind is large, which is convenient for heat dissipation of the condensation plates. The condensation plates are set at an angle, and the end of the condensation plates away from the sunny side is set in the side air duct. The end of the condensation plates away from the sunny side is more likely to maintain a low temperature and maintain the condensation effect of the condensation plates.

[0019] 5. By taking and placing the insulation board to control the opening and closing of the hole groups on both sides of the shell, the heat dissipation or heat preservation needs can be achieved, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and enable those skilled in the relevant art to make and use the present application.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 This is a separate diagram of the housing, detector, and transfer plate.

[0024] Figure 3 This is a structural diagram of the detector.

[0025] Figure 4 It is a structural diagram of the shell and the part where the box is placed.

[0026] Figure 5 for Figure 4 Schematic diagram of front cross-section.

[0027] Figure 6 This is an exploded view of the shell and the part where the box is placed.

[0028] Figure 7 Schematic diagram of the structure of the shell and the interior of the shell.

[0029] Figure 8 It is a structural diagram of the airbag, the part where the side panel is located, and the part where the side tube is located.

[0030] Figure 9 This is a schematic diagram of the structure where the airbag and side panels are located.

[0031] Figure 10This is a structural diagram of one end of the side panel.

[0032] Figure 11 It is a structural diagram of the part where the cylinder is located.

[0033] Figure 12 This is a separate diagram of the side tube and the structures at both ends of the side tube.

[0034] Figure 13 This is a schematic diagram of the right side tube.

[0035] Figure 14 It is a structural diagram of the part where the fluid collection box is located.

[0036] Figure 15 It is a structural schematic diagram of the shell, upper hole, middle hole, lower hole and air guide hole.

[0037] The reference numerals in the figure are: 11, shell; 12, bottom plate; 13, placement box; 14, placement cavity; 15, cover plate; 16, rotating plate; 2, detector; 31, heat conduction groove; 32, heat conduction strip; 33, heat conduction plate; 41, insulation side plate; 42, insulation top plate; 43, notch; 51, air bag; 52, flat plate; 53, air hole; 54, side plate; 55, liquid inlet; 56, heat conduction arc plate; 57, heat conduction straight plate; 58, curved plate; 5 9. Heat-conducting vertical plate; 61. Strip hole; 62. Liquid outlet hole; 63. Liquid inlet; 64. Upper hole; 65. Middle hole; 66. Lower hole; 67. Air guide hole; 68. Passage; 69. Condensation chamber; 71. Side tube; 72. Connecting plate; 73. Condensation plate; 74. Air cavity; 75. Wind cavity; 76. Outer ring plate; 77. Cover strip; 78. Inner ring plate; 79. Liquid accumulation box; 81. Liquid pipe; 82. Air pipe; 91. Side air duct; 92. Upper air duct.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] like Figure 1 - Figure 15 As shown, the embodiment of the present invention provides a power quality detection device that can improve the heat dissipation effect, including: a housing 11, a placement box 13 is installed inside the housing 11, the detector 2 is placed in the placement box 13, the top of the placement box 13 is connected to a heat dissipation box, the top of the heat dissipation box is connected to an air bag 51, side tubes 71 are provided on both sides of the air bag 51, and a plurality of condensation plates 73 are distributed equidistantly in the circumferential direction on the inner side of each side tube 71, and each condensation plate 73 is connected to the air bag 51. The connecting plate 72 is connected to the adjacent condensation plate 73, and an air cavity 74 is provided between the connecting plate 72 and the side tube 71. A wind cavity 75 is provided between the condensation plate 73 and the connecting plate 72. The condensation plates 73 are all "∏"-shaped plates protruding toward the axis of the side tube 71. The angle between the side tube 71 and the horizontal plane is 32°-37°. Upper holes 64, middle holes 65, lower holes 66, and air guide holes 67 are provided on both sides of the shell 11. A cavity is provided in the shell 11, and an insulation board is placed in the cavity.

[0041] When the angle between the side tube 71 and the horizontal plane is 32°, the inclination angle of the side tube 71 and the condensation plate 73 inside the side tube 71 is small, and the length of the side tube 71 inside the shell 11 is short, which reduces the consumables of the side tube 71 and the condensation plate 73 and reduces costs.

[0042] When the angle between the side tube 71 and the horizontal plane is 37°, the inclination angle of the side tube 71 and the condensation plate 73 inside the side tube 71 is large, which makes it easier for small water droplets on the condensation plate 73 to slide down the inclined surface. In the narrow side air duct 91, the length of the condensation plate 73 is extended, thereby improving the use effect of the condensation plate 73.

[0043] A cover plate 15 is installed on the sunny side of the shell 11, and a rotating plate 16 is installed on the other side of the shell 11. The inner wall of one end of the shell 11 is connected to the placement box 13 through the bottom plate 12. A heat conduction groove 31 is opened on the side of the detector 2, and the heat conduction groove 31 is connected to the heat conduction plate 33 through a heat conduction bar 32. The heat conduction bar 32 is used to conduct heat from the detector 2, and the heat conduction plate 33 is used to transfer the heat of the heat conduction bar 32 to the top plate of the placement box 13.

[0044] The heat dissipation box includes: a flat plate 52, which is arranged just above the placement box 13. The flat plate 52 is connected to a corrugated plate through a side plate 54. The corrugated plate is composed of a number of curved plates 58 and a number of heat-conducting straight plates 57. The adjacent sides of the adjacent curved plates 58 are respectively connected to the two sides of a heat-conducting straight plate 57. A strip hole 61 is opened through the middle of each curved plate 58. The middle part of the upper surface of the heat-conducting straight plate 57 is connected to a heat-conducting vertical plate 59 through a heat-conducting arc plate 56. A channel 68 is provided between the curved plate 58 and the placement box 13. An air hole 53 is opened through the middle of the flat plate 52, and the air hole 53 is connected to the bottom of the airbag 51.

[0045] The heat-conducting arc plate 56 is arranged in the heat dissipation box. The shape of the heat-conducting arc plate 56 is adapted to the shape of the bent plate 58 . The bottom end of the heat-conducting vertical plate 59 passes through the strip hole 61 and is connected to the top plate of the placement box 13 .

[0046] The projection of one side of the channel 68 is in an arc shape, with the arc-shaped opening facing downward. The airbag 51 is a folded airbag 51, and the material of the airbag 51 is any one of chloroprene rubber, nitrile rubber, and EPDM rubber.

[0047] Neoprene has excellent resistance to aging, ozone, and weathering, and is not easily deteriorated by environmental factors such as sunlight and air. It has high mechanical strength and good elasticity, and can withstand a certain degree of tensile and compressive deformation, making it suitable for the production of folding airbags 51. It can operate normally in an environment of around 70°C and can maintain a certain degree of performance stability even under short-term exposure to higher temperatures. Nitrile rubber is known for its excellent oil resistance, and also has high tensile strength and good elasticity. It can adapt to the frequent deformation of the folding airbag 51 during use. It can generally be used for a long time in an environment below 70°C and has good heat resistance stability.

[0048] EPDM rubber (ethylene propylene diene monomer) has excellent weather resistance, ozone resistance, and water resistance. Its excellent elasticity and flexibility can adapt to the deformation requirements of the folding airbag 51 under different operating conditions. It can maintain good performance in the temperature range of 70°C to 150°C and has good heat aging resistance, and can be used in high temperature environments of 70 degrees for a long time.

[0049] Water vapor from the heat sink enters the airbag 51, which is blocked by the heat sink below. The airbag 51 expands upward, forming an air barrier. The thermal conductivity of gases is generally low, with air at room temperature being approximately 0.024 W / (m·K), much lower than that of solid materials such as metal. This means that gases have a relatively weak ability to transfer heat. When heat attempts to pass through the gas layer, the large distance between gas molecules makes the energy transfer from molecular collisions during heat conduction inefficient, thus providing a certain degree of insulation. The gas is confined within the relatively enclosed space of the airbag 51, where the flow rate is slow, effectively reducing convective heat transfer. For example, in the air layer between double-glazed windows, the air is sealed between the two panes, restricting its flow. This significantly reduces heat transfer via convection and enhances the insulation effect. Water vapor absorbs and scatters thermal radiation, partially blocking the transfer of heat. This forces most external heat to pass through the cover 15 and airbag 51 before it can be transferred to the water in the heat sink. This can, to a certain extent, reduce heat transfer between objects via thermal radiation.

[0050] Both ends of the side tube 71 are connected to an outer ring, and the inner wall of each outer ring is connected to several cover strips 77, which are equidistantly distributed along the circumferential direction of the outer ring. The end of the cover strip 77 away from the outer ring is connected to the inner ring, and the inner ring is connected to a liquid accumulation box 79. One side of an inner ring is penetrated by several liquid inlets 63 equidistantly distributed in the circumferential direction, and a condensation cavity 69 is provided between the inner walls of the condensation plates 73. One end of each liquid inlet 63 penetrates the inner ring and the cover strip 77 and is connected to the condensation cavity 69. A liquid outlet hole 62 is penetrated on the side of the bottom of the liquid accumulation box 79, and the liquid outlet hole 62 is connected to the heat dissipation box through the liquid pipe 81. The position of the liquid outlet hole 62 is above the connection between the liquid pipe 81 and the heat dissipation box. The outer ring is used to seal the air cavity 74, and the cover strip 77 is used to seal the condensation cavity 69. A circular hole is penetrated on one side of the other inner ring, and the air bag 51 is connected to the circular hole through the air pipe 82.

[0051] A side air duct 91 is arranged between the inner wall of the lower part of the shell 11 and the internal structure of the shell 11, an upper air duct 92 is arranged between the top of the airbag 51 and the cover plate 15, and the side tube 71 is arranged in the side air duct 91. The upper hole 64, the middle hole 65, the lower hole 66, and the air guide hole 67 constitute a hole group. The middle hole 65 is connected with the channel 68. The shape of the middle hole 65 is adapted to the shape of the channel 68. The upper hole 64 is connected with the upper air duct 92, and the lower hole 66 and the air guide hole 67 are both connected with the side air duct 91. The opening area of the channel of the air guide hole 67 gradually decreases along the direction of the virtual straight line, and the opening area of the air guide hole 67 close to the air hole 53 is smaller than the opening area of the air guide hole 67 away from the air hole 53.

[0052] The insulation plate is composed of an insulation side plate 41 and an insulation top plate 42 on the top of the insulation side plate 41. The thickness of the insulation top plate 42 is greater than the thickness of the insulation side plate 41. A slot 43 is provided at the bottom of the insulation top plate 42, and the slot 43 is adapted to the side tube 71. The insulation side plate 41 and the insulation top plate 42 are both made of elastic material. The insulation side plate 41 is placed in the side air duct 91, and the insulation top plate 42 is placed in the upper air duct 92. A sealing plate is connected to the outside of the insulation side plate 41, and the sealing plate is used to seal the hole group on the side of the shell 11.

[0053] A detection method is provided for a detection device for power quality that can improve heat dissipation effect. The detector 2 is placed in a placement box 13 and fixed. The temperature of the detection environment is divided into a high temperature environment, a low temperature environment, and an appropriate temperature according to the temperature. In the high temperature environment, the cover plate 15 is placed on the sunny side, the insulation plate is removed from the side air duct 91 and the upper air duct 92, the hole group is no longer sealed, and water is poured into the heat dissipation box. The heat in the shell 11 and the heat of the detector 2 are transferred to the heat conduction vertical plate 59 and the heat conduction arc plate 56 through heat conduction. The water temperature in the heat dissipation box rises and evaporates, and the water vapor enters the heat dissipation box. The airbag 51 enters the folded airbag 51, expands and stretches upward, and constructs a gas isolation layer between the cover plate 15 and the heat dissipation box to block the external temperature. Through the effect of thermal convection, the gas flows through the hole groups on both sides of the shell 11, taking away the temperature of the heat-conducting component, the airbag 51, and the side tube 71. The water vapor in the airbag 51 enters the condensation chamber 69 distributed in a scattered manner in the cylinder. The liquefied small water droplets slide along the inclined side tube 71 into the liquid accumulation box 79 and are transported to the heat dissipation box. In a low temperature environment, the insulation board is not taken out, thereby increasing the insulation effect of the shell 11.

[0054] When used outdoors, the temperature of the operating environment of the detector 2 is determined. If the environment is suitable, the DC converter transformer can be directly tested by the detector 2.

[0055] If the ambient temperature is too high, place the detector 2 in the placement box 13, close the rotating plate 16 and fix it. The rotating plate 16 is made of transparent material, and the display screen of the detector 2 can be seen through the rotating plate 16. Turn over the shell 11, and place the shell 11 as horizontally as possible, so that the cover 15 faces the sunny side, and the detector 2 is located at the bottom of the shell 11 to prevent direct sunlight from shining on the detector 2, thereby reducing the temperature or heating rate of the shell 11 where the detector 2 is located. Open the cover 15, and take out the insulating side panels 41 in the side air duct 91 and the insulating top panel 42 in the upper air duct 92. At this time, the insulating side panels 41 and the insulating top panel 42 no longer seal the hole group, and the outside wind can flow through the hole groups on both sides of the shell 11 to add water to the heat dissipation box. During the use of the detector 2, the temperature of the detector 2 is transferred to the heat-conducting arc plate 56 and the heat-conducting vertical plate 59 through the heat-conducting strip 32, the heat-conducting plate 33, and the top plate of the placement box 13. The heat-conducting arc plate 56 is entirely located in the water of the placement box 13, and the upper and middle parts of the heat-conducting vertical plate 59 are also located in the water of the placement box 13. The heat of the heat-conducting vertical plate 59 and the heat-conducting arc plate 56 is transferred to the water. The cover plate 15 is exposed to the sun for a long time, and the temperature of the upper part of the shell 11 increases. The temperature of the upper part of the shell 11 is transferred downward, and part of the temperature inside the shell 11 is also transferred to the water in the heat dissipation box. As the water temperature rises, part of the water evaporates into water vapor and enters the folded airbag 51 through the air hole 53. The airbag 51 expands upward and forms an isolation barrier. Most of the heat on the external sunny side needs to pass through the cover plate 15 and the airbag 51 before it can be transferred to the water in the heat dissipation box. The thermal conductivity of gas is generally low. When heat tries to pass through the gas layer, due to the large distance between gas molecules, the efficiency of energy transfer by molecular collision during heat conduction is low. In addition, water vapor has a certain absorption and scattering effect on thermal radiation, which can block the transfer of part of the thermal radiation, thereby playing a certain heat insulation role. The water vapor in the airbag 51 increases, and the pressure inside the airbag 51 increases, and strong pressure relief is required. The water vapor in the airbag 51 enters the air cavity 74 and the condensation cavity 69 of the side tube 71 through the air pipe 82. The water vapor encounters the condensation plate 73 and liquefies into small water droplets, and the condensation plate 73 is in the shape of a "∏". The surface area of the condensation plate 73 is large and the shape is regular. It is easy to mass produce and install on the inner wall of the cylinder. The side tube 71 and the condensation tube are both inclined. The small water droplets on the condensation plate 73 slide along the inclined condensation tube wall into the liquid accumulation box 79. The water in the liquid accumulation box 79 flows into the heat dissipation box through the liquid pipe 81, completing the water-water vapor-water cycle. Only a certain amount of water is needed to complete the heat dissipation work, reducing the total water volume, reducing the volume of the heat dissipation box, and reducing the total mass of the heat dissipation box.

[0056] Since the hole groups on both sides of the shell 11 are connected, the wind from the external environment enters the shell 11 through the hole groups, and the gas from the upper hole 64 enters the upper air duct 92. The upper air duct 92 is close to the sunny side, and the temperature of the upper air duct 92 is high. The temperature of the upper air duct 92 is taken away by heat convection, thereby reducing the temperature of the upper air duct 92; the middle hole 65 is connected to the channel 68, and the wind blows through the channel 68, which takes away part of the heat of the heat-conducting vertical plate 59 and the heat-conducting arc plate 56, thereby reducing the heat of the heat-conducting vertical plate 59 and the heat-conducting arc plate 56. The temperature of the plate 56 maintains the continuous working ability of the heat-conducting vertical plate 59 and the heat-conducting arc plate 56; the lower hole 66 is connected to the bottom of the side air duct 91, and the air guide hole 67 is connected to the side air duct 91. The air guide hole 67 guides the wind toward the channels 68 on both sides of the side air duct 91, so that the wind flows toward the hole group on the other side, and the wind in the side air duct 91 flows, thereby improving the heat dissipation efficiency and facilitating the removal of heat from the detector 2, the heat-conducting strip 32, the heat-conducting plate 33, and the top plate of the placement box 13. The wind from the hole group will also enter the side tube 71, and the wind flows along the wind cavity 75. The condensation plates 73 are all "∏"-shaped plates protruding toward the axis of the side tube 71. The contact area between the condensation plates 73 and the wind is large, which is convenient for the heat dissipation of the condensation plates 73 and reduces the temperature of the condensation plates 73. The condensation plates 73 are arranged at an angle, and the temperature of the end of the condensation plate 73 away from the sunny side is lower than the temperature of the end of the condensation plate 73 on the sunny side. The end of the condensation plate 73 away from the sunny side is arranged in the side air duct 91. The end of the condensation plate 73 away from the sunny side is easier to keep a low temperature, thereby maintaining the condensation effect of the condensation plate 73.

[0057] By setting the detector 2 on the non-sunny side, the external high temperature is prevented from directly acting on the detector 2. An air bag 51, a heat dissipation box, and a placement box 13 are sequentially arranged in the shell 11 on the sunny side. The heat dissipation box is used to absorb the heat transferred from the detector 2 and the shell 11. Water vapor enters the air bag 51 and forms an air wall. The air wall can block the heat transferred from the outside and reduce the heating rate of the heat dissipation box and the detector 2. The water vapor in the air bag 51 enters the side tube 71 and liquefies. The liquefied water returns to the heat dissipation box, forming a water cycle without the need for frequent water addition. An air duct is set between the top and the side wall of the shell 11 to facilitate the external wind to enter the shell 11, and assist the heat dissipation of the internal structure of the shell 11 through heat convection. The overall structure is simple, the cost is low, and the heat dissipation effect is good with multiple heat dissipation.

[0058] When the ambient temperature is low, the insulation board is not removed and the insulation board seals the hole group. The side air duct 91 and the upper air duct 92 in the shell 11 are not connected to the external environment. The shell 11 forms a closed environment, which reduces the dissipation rate of the internal temperature of the shell 11 and increases the insulation effect of the shell 11.

[0059] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. While specific details are described in detail in the preferred embodiments of the present invention to provide a thorough understanding of the present invention, those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A power quality detection device capable of improving heat dissipation effect, characterized in that: include: A housing (11) is provided with a placement box (13) installed inside the housing (11), the detector (2) is placed in the placement box (13), the top of the placement box (13) is connected to a heat dissipation box, the top of the heat dissipation box is connected to an air bag (51), side tubes (71) are provided on both sides of the air bag (51), the inner side of each side tube (71) is provided with a plurality of condensation plates (73) equidistantly distributed in a circumferential direction, each condensation plate (73) is connected to an adjacent condensation plate (73) through a connecting plate (72), and the connecting plate (72) is connected to the adjacent condensation plate (73). An air cavity (74) is provided between the connecting plate (72) and the side tube (71), and an air cavity (75) is provided between the condensing plate (73) and the connecting plate (72). The condensing plates (73) are all "∏"-shaped plates protruding toward the axis of the side tube (71). The angle between the side tube (71) and the horizontal plane is 32°-37°. An upper hole (64), a middle hole (65), a lower hole (66), and an air guide hole (67) are provided on both sides of the shell (11). A cavity is provided in the shell (11), and an insulation board is placed in the cavity.

2. The power quality detection device capable of improving heat dissipation according to claim 1, characterized in that: A cover plate (15) is installed on the sunward side of the shell (11), and a rotating plate (16) is installed on the other side of the shell (11). The inner wall of one end of the shell (11) is connected to the placement box (13) through the bottom plate (12). A heat conduction groove (31) is opened on the side of the detector (2). The heat conduction groove (31) is connected to the heat conduction plate (33) through a heat conduction bar (32). The heat conduction bar (32) is used to conduct heat from the detector (2), and the heat conduction plate (33) is used to transfer heat from the heat conduction bar (32) to the top plate of the placement box (13).

3. The power quality detection device capable of improving heat dissipation according to claim 1, characterized in that: The heat dissipation box comprises: a flat plate (52), the flat plate (52) is arranged just above the placement box (13), the flat plate (52) is connected to a corrugated plate through a side plate (54), the corrugated plate is composed of a plurality of curved plates (58) and a plurality of heat-conducting straight plates (57), the adjacent sides of the adjacent curved plates (58) are respectively connected to the two sides of a heat-conducting straight plate (57), a strip hole (61) is opened through the middle of each curved plate (58), the middle of the upper surface of the heat-conducting straight plate (57) is connected to a heat-conducting vertical plate (59) through a heat-conducting arc plate (56), a channel (68) is provided between the curved plate (58) and the placement box (13), an air hole (53) is opened through the middle of the flat plate (52), and the air hole (53) is connected to the bottom of the air bag (51).

4. The power quality detection device capable of improving heat dissipation according to claim 3, characterized in that: The heat-conducting arc plate (56) is arranged in the heat dissipation box, and the shape of the heat-conducting arc plate (56) is adapted to the shape of the bent plate (58). The bottom end of the heat-conducting vertical plate (59) passes through the strip hole (61) and is connected to the top plate of the placement box (13).

5. The power quality detection device capable of improving heat dissipation effect according to claim 3, characterized in that: The projection of one side of the channel (68) is in an arc shape, with the arc opening facing downward. The airbag (51) is a folded airbag (51), and the material of the airbag (51) is any one of chloroprene rubber, nitrile rubber, and EPDM rubber.

6. The power quality detection device capable of improving heat dissipation according to claim 1, characterized in that: Both ends of the side tube (71) are connected to the outer ring, and the inner wall of each outer ring is connected to a plurality of cover strips (77), and the plurality of cover strips (77) are evenly distributed along the circumference of the outer ring. The end of the cover strip (77) away from the outer ring is connected to the inner ring, and the inner ring is connected to the liquid accumulation box (79). One side of the inner ring is penetrated by a plurality of liquid inlets (63) evenly distributed in the circumferential direction. A condensation cavity (69) is provided between the inner walls of the condensation plate (73), and one end of each liquid inlet (63) penetrates the inner ring, The cover strip (77) is connected to the condensation chamber (69), and a liquid outlet hole (62) is opened through the side of the bottom of the liquid accumulating box (79), and the liquid outlet hole (62) is connected to the heat dissipation box through the liquid pipe (81). The position of the liquid outlet hole (62) is located above the connection between the liquid pipe (81) and the heat dissipation box. The outer ring is used to seal the air cavity (74), and the cover strip (77) is used to seal the condensation chamber (69). A circular hole is opened through one side of the other inner ring, and the air bag (51) is connected to the circular hole through the air pipe (82).

7. The power quality detection device capable of improving heat dissipation according to claim 1, characterized in that: A side air duct (91) is provided between the inner wall of the lower middle portion of the shell (11) and the internal structure of the shell (11), an upper air duct (92) is provided between the top of the airbag (51) and the cover plate (15), the side tube (71) is provided in the side air duct (91), the upper hole (64), the middle hole (65), the lower hole (66), and the air guide hole (67) form a hole group, the middle hole (65) is connected to the channel (68), the shape of the middle hole (65) is adapted to the shape of the channel (68), the upper hole (64) is connected to the upper air duct (92), the lower hole (66) and the air guide hole (67) are both connected to the side air duct (91), the opening area of the air guide hole (67) gradually decreases along the direction of the virtual straight line, and the opening area of the air guide hole (67) at one end close to the air hole (53) is smaller than the opening area of the air guide hole (67) at one end away from the air hole (53).

8. The power quality detection device capable of improving heat dissipation according to claim 1, characterized in that: The insulation board is composed of an insulation side board (41) and an insulation top board (42) on top of the insulation side board (41). The thickness of the insulation top board (42) is greater than the thickness of the insulation side board (41). A notch (43) is provided at the bottom of the insulation top board (42). The notch (43) is adapted to the side tube (71). Both the insulation side board (41) and the insulation top board (42) are made of elastic material. The insulation side board (41) is placed in the side air duct (91), and the insulation top board (42) is placed in the upper air duct (92). A sealing sheet is connected to the outer side of the insulation side board (41), and the sealing sheet is used to seal the hole group on the side of the shell (11).

9. A detection method for use in the power quality detection device capable of improving heat dissipation according to any one of claims 1 to 8, characterized in that: The detector (2) is placed in the placement box (13) and fixed. The temperature of the detection environment is divided into a high temperature environment, a low temperature environment, and an appropriate temperature according to the temperature. In the high temperature environment, the cover plate (15) is placed on the sunny side, the insulation plate is removed from the side air duct (91) and the upper air duct (92), the hole group is no longer sealed, and water is poured into the heat dissipation box. The heat in the shell (11) and the heat of the detector (2) are transferred to the heat conduction vertical plate (59) and the heat conduction arc plate (56) through heat conduction. The water temperature in the heat dissipation box rises and evaporates, and the water vapor enters the air bag (51). The folded air bag (51) ) expands and stretches upward, building a gas isolation layer between the cover plate (15) and the heat dissipation box to block the external temperature. Through the effect of thermal convection, the gas flows through the hole groups on both sides of the shell (11), taking away the temperature of the heat-conducting component, the air bag (51), and the side tube (71). The water vapor in the air bag (51) enters the condensation cavity (69) distributed in a scattered manner in the cylinder. The liquefied small water droplets slide along the inclined side tube (71) into the liquid accumulation box (79) and are transported to the heat dissipation box. In a low temperature environment, the insulation board is not removed, thereby increasing the insulation effect of the shell (11).

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