CN115279141A - Solar cell panel voltage detection terminal - Google Patents
Solar cell panel voltage detection terminal Download PDFInfo
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- CN115279141A CN115279141A CN202210925614.5A CN202210925614A CN115279141A CN 115279141 A CN115279141 A CN 115279141A CN 202210925614 A CN202210925614 A CN 202210925614A CN 115279141 A CN115279141 A CN 115279141A
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 159
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 12
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 10
- 239000000110 cooling liquid Substances 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 210000003127 knee Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 32
- 230000008569 process Effects 0.000 description 29
- 239000000428 dust Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 19
- 230000017525 heat dissipation Effects 0.000 description 14
- 239000002274 desiccant Substances 0.000 description 8
- 238000010248 power generation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- -1 moisture Substances 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of solar cell panel voltage detection, and particularly relates to a solar cell panel voltage detection terminal; the device comprises a shell, a sending antenna and a circuit assembly, wherein the circuit assembly is arranged in the shell, the sending antenna is arranged at the top of the shell and is electrically connected with the circuit assembly, the circuit assembly comprises a starting circuit, a DCDC circuit, a LoRa data sending module circuit and an environment control module, and the environment control module is used for ensuring the normal working environment in the shell; the miniature air pump of the inside installation of control air-intake pipe starts, inside with outside air suction casing to through an air outlet outflow on the cooling bath, the cooling air passes through the clearance of the inside circuit original paper of casing, takes the heat to the external world, makes the inside normal temperature environment that keeps of casing, avoids the high temperature to cause the circuit short circuit, has influenced electric saw detection terminal to circuit board output voltage's detection.
Description
Technical Field
The invention belongs to the technical field of solar cell panel voltage detection, and particularly relates to a solar cell panel voltage detection terminal.
Background
A solar cell is also called a "solar chip" or a "photovoltaic cell", and is a photoelectric semiconductor sheet that directly generates electricity by using sunlight. It can output voltage instantly and generate current under the condition of loop as long as it is illuminated by the light meeting a certain illumination condition. With the increasingly widespread use of new energy sources, solar cells are widely used, and due to the randomness of cell manufacturing conditions, the performance of the produced cells is different, and in the large-scale use process, the cells are usually distributed in a region with sufficient sunlight through a large number of solar cell panel arrays for concentrated power supply; and place the solar cell panel in the external world and must receive external environment's influence, the change of temperature and humidity leads to solar cell panel internal fault, and then cause the abnormal condition of output voltage to take place occasionally, the more panel of quantity adopts artifical the detection not only easy hysteresis, consume the manpower moreover, consequently often install voltage detection terminal on solar cell panel, output voltage for instant to solar cell panel monitors, and in time send out the police dispatch newspaper when the problem appears, and take corresponding measure.
The technical scheme of the solar panel real-time online detection equipment also appears in the prior art, and if a Chinese patent with the application number of CN201820163045.4 discloses the solar panel real-time online detection equipment, the utility model discloses the solar panel real-time online detection equipment, a cooling sleeve and a cooling fin are arranged on the outer side of the bottom of a battery plate box, so that the battery plate box can be timely cooled, the influence of overhigh temperature on the battery plate is reduced, dust removing brushes are arranged on the upper side and the lower side of a moving hole, and the battery plate can be subjected to dust removal, so that the accuracy and the efficiency of online detection are improved, and the solar panel real-time online detection equipment has the advantages of high accuracy and high efficiency and has wide market prospect;
however, in hot summer, the circuit board is installed in a sunny open area, the external environment temperature is also high due to direct sunlight, natural heat dissipation is performed only through the heat dissipation fins at the moment, the internal temperature of the shell is difficult to be guaranteed within a safe range, and the temperature of circuit elements cannot be controlled in time; and current water-cooling radiator often just can receive the radiating action through contact heat dissipation, the circuit component position that only contacts to be close to, and the position radiating action of keeping away from is relatively poor, has so caused the temperature of different positions on the circuit component uneven, lasts for a long time, causes circuit component easily to appear ageing, reduces life.
In view of the above, the present invention provides a solar cell panel voltage detection terminal to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a solar cell panel voltage detection terminal.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a solar cell panel voltage detection terminal which comprises a shell, a transmitting antenna and a circuit assembly, wherein the circuit assembly is arranged in the shell, the transmitting antenna is arranged at the top of the shell and is electrically connected with the circuit assembly, the circuit assembly comprises a starting circuit, a DCDC circuit, a LoRa data transmitting module circuit and an environment control module, and the environment control module is used for ensuring the normal working environment in the shell;
the environment control module includes:
the air inlet pipe is arranged on the lower surface of the bottom of the shell;
the cooling tank is arranged at the bottom of the shell and is communicated with the air inlet pipe;
the first air outlet is uniformly arranged above the cooling tank, and the end part of the first air outlet points to the circuit component;
the air outlet pipe is arranged at the top of the shell;
the cooling box body is arranged in the cooling tank, the cooling liquid is filled in the cooling box body, the bottom of the cooling box body is sunken upwards, and the pipe orifice of the air inlet pipe points to the middle of the sunken part of the bottom of the cooling box body;
the cooling tank is uniformly arranged at the position, close to the concave part, of the bottom of the cooling box body.
When the solar energy power generation device works, the solar energy circuit boards are regularly arranged in a sunny open area in the power generation process, and in order to timely detect the voltage output condition on the circuit boards, voltage detection terminals are installed on each solar energy circuit board, the voltage output condition is detected at any time, hardware parts of circuit components such as circuit boards, single-chip microcomputers and other elements are installed in the shell, in the operation process, the circuit elements are electrified to work, and heat is generated, because temperature sensors can be installed in the circuit boards, and in summer hot conditions, the circuit boards are installed in the sunny open area, the temperature of the external environment is also higher due to direct sunlight, at the moment, the temperature in the shell is difficult to be ensured in a safe range only through natural heat dissipation, therefore, after the temperature sensors transmit temperature data to a cloud server, when the temperature exceeds the safe range, a micro air pump installed in an air inlet pipe is controlled to be started, external air is sucked into the shell and flows out through an air outlet on a cooling groove, cooling air passes through gaps of circuit elements in the shell, and under the condition that the temperature on the circuit elements is increased, the circuit elements is dissipated, the temperature is effectively controlled, the temperature is accelerated, the flowing air is controlled, the flowing air flows out to keep high through the top of the shell, and the top of the shell, the detection terminals, and the detection terminals, the detection circuits, and the detection circuits are prevented from being in a short circuit boards, and the detection circuits are prevented from being short circuit boards, and the detection temperature of the detection terminals is prevented from being influenced by the detection terminals;
further, under the extreme condition of non-summer hot environment, when the temperature of the circuit element in the shell rises during the working process, the internal air expands, and the hot air tends to rise, so that the hot air flows out through the air outlet pipe 43 at the top, because the diameter of the air outlet pipe 43 is smaller, when the hot air flows out through the air outlet pipe 43, under the narrow pipe effect, the air velocity flowing in the air outlet pipe 43 is faster, and the air pressure is lower due to the faster flow velocity, so that the hot air in the shell is further promoted to flow towards the air outlet pipe 43, and the heat is brought to the outside at an accelerated speed; in the process, the outside air flows in through the air inlet pipe and supplements the air lost in the shell; through the process, the temperature inside the shell is effectively controlled, the starting frequency of the miniature air pump is reduced, and electric energy is saved.
Preferably, the air outlet pipe and the air inlet pipe are respectively provided with a first filter screen and a second filter screen; the first filter screen is arranged in the middle of the air outlet pipe; the second filter screen is arranged at the position of the pipe orifice of the air inlet pipe; the first filter screen is arranged in a double-layer mode, and a drying agent is filled in the middle of a double-layer gap of the first filter screen; the second filter screen is of a spherical structure and is positioned at the outer side of the opening of the air inlet pipe.
When the air inlet pipe works, if the inflowing cooling air contains more dust, the dust can be attached to the surface of a circuit element in the cooling process, so that the problems of resistance increase, heat dissipation resistance obstruction, circuit element aging and the like are caused, and therefore the first filter screen is arranged in the air inlet pipe, so that the dust contained in the air entering the shell is effectively removed; the first filter screen is arranged into a sphere, so that the contact surface between the first filter screen and air is increased, the air inlet area is increased, and the difficulty of blocking an air inlet pipe by dust is improved; the dust is blocked outside the air inlet pipe, and when the micro air pump does not work, the first filter screen on the pipe orifice of the air inlet pipe positioned in the outside is blown by natural air flowing in the outside, so that the attached dust is easier to fall down, and the problem of blockage of the air inlet pipe is further reduced;
furthermore, the air outlet pipe faces the outside at the pipe opening, external air possibly flows in through the air outlet pipe, in rain weather, moist air and even splashed raindrops possibly seep into the air outlet pipe, therefore, the second filter screen is arranged, on one hand, dust and raindrops in the air flowing in through the air outlet pipe are blocked, on the other hand, the drying agent in the double-layer second filter screen can further filter the dust, on the other hand, moisture in the air can be absorbed, and on the same hand, the drying agent is also filled in the cooling groove to dry the flowing cooling air, so that the drying of the working environment in the shell is ensured, and the problem that the moisture and humidity are increased to cause the fault of a circuit element is avoided; and the desiccant needs to be replaced regularly after being used for a period of time.
Fixing columns are uniformly arranged in the shell, are vertically arranged, and the bottoms of the fixing columns extend into the cooling tank; the fixed column includes: the cooling device comprises an inner sleeve and an outer sleeve, wherein the outer sleeve is nested on the outer side of the inner sleeve, and a gap between the inner sleeve and the outer sleeve forms a cooling channel; the bottoms of the inner sleeve and the outer sleeve extend into the cooling groove and are fixedly arranged on the fixed box, and the end part of the outer sleeve extends into the cooling box body and is communicated with the inside of the cooling box body; the end part of the inner sleeve penetrates through the interior of the cooling box body and extends into the lower part of the cooling box body; the top of the shell is provided with a condensing area, and the condensing area is communicated with the cooling channel and the cooling box body through a return pipe; the side wall of the inner sleeve is provided with a strip-shaped through groove which is communicated with the inside of the external shell, and the cooling channel is not communicated with the through groove; the inner sleeve and the outer sleeve are made of aluminum alloy, and the outer surfaces of the inner sleeve and the outer sleeve are both subjected to anodic oxidation treatment.
When the circuit component cooling device works, cooling wind is difficult to enter gaps due to densely distributed circuit components, and the cooling effect on the parts, which are not easy to blow, of the circuit components in the gaps is poor; therefore, the fixing columns are arranged, on one hand, a fixing piece is needed in the fixing process of a circuit element such as a circuit board, the fixing columns can serve as the fixing piece, and the circuit element such as the circuit board and the like can be clamped in the gap and fixed; thus, the fixing column is positioned at the gap part of the circuit element; when cooling is needed, on one hand, the fixing of the aluminum alloy material has better heat conduction performance, and heat can be transferred to the end part positioned in the cooling tank, on the other hand, a part of cooling air in the cooling tank flows out from the through holes uniformly distributed on the outer surface of the fixing column through the inside of the fixing column, so that more comprehensive cooling of multiple angles of the circuit element is realized, and the cooling effect is improved; and the fixed column is subjected to anodic oxidation treatment, and the surface of the fixed column is provided with a layer of insulating oxide film, so that the normal work of the circuit element is prevented from being interfered in the process of contacting with the charged circuit element.
Preferably, the two sides of the cooling groove extend to the side wall of the shell, the side wall of the cooling groove, which is located on the side wall of the shell, is provided with a second air outlet, and the second air outlet is horizontally arranged.
The during operation because some cooling air flows out through the cooling trench in the second air outlet level on the casing lateral wall position, cools off circuit element, with foretell air outlet and the cooperation of the through-hole on the fixed column, cools off circuit element from the angle of horizontal direction to make the cooling effect that circuit element received more comprehensive even, further improved the cooling effect to circuit element, guaranteed circuit element's normal work.
Preferably, the transmitting antenna penetrates through the middle part of the air outlet pipe, and the end part of the air outlet pipe is of a conical pipe structure; support rods are arranged on two sides of the sending antenna, the support rods are fixedly arranged on the end part of the air outlet pipe, the length of each support rod is larger than that of the sending antenna, and arc-shaped protection bent rods are uniformly arranged on two sides of each support rod; the supporting rod is of a tubular structure, the inside of the supporting rod is communicated with the inside of the air outlet pipe, and air outlet holes are uniformly formed in the position, facing the sending antenna, of the end part of the supporting rod.
During operation, in installation and daily maintenance work, the sending antenna may collide with other objects to cause damage, therefore, through installing the supporting rod and the protection bent rod, the outer side of the protection antenna forms net-shaped protection, the sending antenna can be protected when colliding with larger objects, direct collision between the sending antenna and a sending antenna body is avoided, the sending antenna body is prevented from being damaged, and the supporting rod and the protection bent rod are made of non-conductive materials, such as rubber, and the influence on normal operation of the sending antenna is avoided; the sending antenna penetrates through the middle part of the air outlet pipe, and the air which flows out along the sending antenna in a concentrated manner under the action of the conical structure at the end part of the air outlet pipe, so that impurities such as moisture, dust and the like which may exist on the surface of the sending antenna are cleaned; and a part of air that flows out in the tuber pipe flows out from the venthole through inside the bracing pole to clear up sending antenna surface, thereby realize the multi-angle of sending antenna surface and clear up comprehensively, guarantee sending antenna's normal work.
The invention has the following beneficial effects:
1. according to the solar cell panel voltage detection terminal, the micro air pump arranged in the air inlet pipe is controlled to be started, outside air is sucked into the shell and flows out through the first air outlet on the cooling groove, cooling air passes through the gap of circuit elements in the shell, heat dissipation on the circuit elements is accelerated under the condition that the air flow rate is increased, the temperature is effectively controlled, the flowing air carries the heat to flow out through the air outlet at the top and brings the heat to the outside, so that the normal temperature environment is kept in the shell, the circuit short circuit caused by overhigh temperature is avoided, and the detection of the circuit board output voltage by the electric saw detection terminal is influenced.
2. According to the solar cell panel voltage detection terminal, the fixing columns are arranged, on one hand, a fixing piece is needed in the fixing process of a circuit element such as a circuit board, the fixing columns can serve as the fixing piece, and circuit elements such as the circuit board and the like are clamped in the gap and fixed; thus, the fixing column is positioned at the gap part of the circuit element; when needs cool off, on the one hand, the aluminium alloy material fix have better heat conductivility, can be with heat transfer to the tip that is located the cooling bath inside on the other hand, and on the other hand, the cooling air in the cooling bath has partly to flow through the through-hole of fixed column outside surface evenly distributed through the fixed column is inside, realizes the more comprehensive cooling to a plurality of angles of circuit element, has improved the cooling effect.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a perspective view of a support bar of the present invention;
FIG. 6 is a perspective view of a cooling box of the present invention;
FIG. 7 is a cross-sectional view of a fixation post of the present invention;
in the figure: the air conditioner comprises a shell 1, a condensation area 11, a return pipe 12, a sending antenna 2, a circuit component 3, an environment control module 4, an air inlet pipe 41, a second filter screen 411, a cooling groove 42, a first air outlet 421, a second air outlet 422, an air outlet pipe 43, a first filter screen 431, a fixing column 44, an inner sleeve 441, an outer sleeve 442, a cooling channel 443, a through groove 444, a supporting rod 45, a protective bent rod 451, an air outlet hole 452, a cooling box 5 and a cooling groove 51.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the solar cell panel voltage detection terminal according to the present invention includes a housing 1, a transmitting antenna 2 and a circuit component 3, wherein the circuit component 3 is installed inside the housing 1, the transmitting antenna 2 is installed on the top of the housing 1 and electrically connected to the circuit component 3, and the circuit component 3 includes a starting circuit, a DCDC circuit and a LoRa data transmitting module circuit, and further includes an environment control module 4 for ensuring a normal working environment inside the housing 1;
the environment control module 4 includes: the air inlet pipe 41 is arranged on the lower surface of the bottom of the shell 1;
the cooling tank 42, the cooling tank 42 is opened on the bottom of the body 1, and communicate with air inlet pipe 41; a first air outlet 421, wherein the first air outlet 421 is uniformly arranged above the cooling groove 42, and the end part of the first air outlet 421 points to the circuit component 3; and the air outlet pipe 43 is arranged at the top of the shell 1.
The cooling box body 5 is arranged in the cooling tank 42, the cooling liquid is filled in the cooling box body 5, the bottom of the cooling box body 5 is sunken upwards, and the pipe orifice of the air inlet pipe 41 points to the middle of the sunken part at the bottom of the cooling box body 5;
and the cooling grooves 51 are uniformly arranged at the positions, close to the concave parts, of the bottom of the cooling box body 5.
The during operation, solar energy circuit board is at the electricity generation in-process, and neatly arranged is in the sufficient open area of sunshine to in order to detect the voltage output condition on the circuit board in time, consequently all install voltage detection terminal on every solar energy circuit board, detect the voltage condition of output at any time, concrete process as follows: because the battery is not arranged in the detection terminal, circuits in the working process of circuit elements in the detection terminal are supplied by electric energy generated by the solar cell panel, and the solar cell panel works in the daytime and almost stops working at night due to weak light, so that the circuit elements in the detection terminal work in the daytime and keep dormant at night, and synchronous power generation and detection are realized; the starting circuit is used for automatically starting the DCDC circuit when the solar panel reaches the starting voltage and supplying energy to the LoRa data sending module circuit;
the DCDC circuit is used for converting the voltage 9.1-50V output by the starting circuit into 3.3V voltage required by the LoRa data transmission module circuit; the LoRa module integrates an SX1262 single-chip microcomputer and an STM8L152 single-chip microcomputer, an ADC of the STM8L152 single-chip microcomputer is used for collecting the voltage of the solar panel, the collected data is sent to a LoRaWAN gateway through an SX1262 transceiver and a sending antenna 2 and finally gathered to a cloud server, the generated energy and the performance of the solar panel and whether faults exist are given out through big data analysis, and the real-time detection of the power generation process of the solar panel is realized; the starting circuit, the DCDC circuit and the LoRa data transmission module circuit are all the same type of devices of the solar cell panel detection device in the prior art, and the specific structure and the working process of the device belong to the prior art;
and the hardware part of the circuit assembly 3 such as the circuit board and the single chip are installed inside the casing 1, in the operation process, the circuit element is electrified to work, and release heat, because the temperature sensor is installed inside the casing 1, and under the hot condition in summer, and the circuit board is installed in the open area with sufficient sunlight, the temperature of the external environment is also higher due to direct sunlight, at this time, the temperature inside the casing 1 is difficult to be ensured in the safe range only through natural heat dissipation, therefore, after the temperature sensor transmits the temperature data to the cloud server, when the temperature is found to exceed the safe range, the micro air pump installed inside the air inlet pipe 41 is controlled to start, the external air is sucked into the casing 1 and flows out through the air outlet 421 on the cooling groove 42, the cooling air passes through the gaps of the circuit elements inside the casing 1, under the condition that the air flow rate is increased, the heat on the circuit element is dissipated rapidly, the temperature is effectively controlled, the flowing air carries the heat to flow out through the air outlet pipe 43 on the top, and carries the heat to the outside, so that the normal temperature environment is kept inside the casing 1, the circuit short circuit is avoided, and the detection of the output voltage of the electric detection terminal is influenced;
furthermore, when the temperature of the external environment is high, the air entering from the outside may have a certain amount of heat, which affects the cooling effect of the circuit element, so that by arranging the cooling box 5, the cooling box 5 therein is filled with cooling liquid, and because the box material of the cooling box 5 is the material of the CPU water-cooling heat dissipation device in the prior art, the cooling liquid in the cooling box is the cooling liquid commonly used for water-cooling heat dissipation of the electrical component in the prior art, such as deionized water, when the circuit element normally works, the water-cooling box can absorb the heat generated in the circuit element, thereby balancing the temperature in the housing 1, and avoiding the influence of the overhigh temperature on the normal work of the circuit element; after the micro air pump is started, the air flowing in through the air inlet pipe 41 firstly passes through the cooling tank 51 at the bottom of the cooling box body 5, and because the cavity inside the cooling box body 5 extends into the side wall of the cooling tank 51, when the air passes through the cooling tank 51, the heat in the air is transferred into the cooling liquid in the side wall of the cooling tank 51, so that the temperature of the air in the flowing cooling air is reduced, and then after the air passes through the cooling tank 51, the air can play a better cooling role on circuit elements after passing through the first air outlet;
furthermore, because the bottom of the cooling box body 5 is sunken, the air leaving the air inlet pipe 41 is in a semi-surrounding state in the sunken area at the bottom of the cooling box body 5, so that the inflowing air can be ensured to enter the cooling tank 51 more fully to be cooled, and the effect of cooling circuit elements is better exerted.
Further, in an extreme case such as a non-summer hot environment, when the temperature rises during the operation of the circuit components inside the housing 1, the internal air expands, and the hot air tends to rise, so that the hot air flows out through the air outlet pipe 43 at the top, because the diameter of the air outlet pipe 43 is smaller, when the hot air flows out through the air outlet pipe 43, under the narrow pipe effect, the air flowing in the air outlet pipe 43 flows at a higher speed, and the higher speed of the air flowing in the air outlet pipe leads to a lower air pressure, thereby further promoting the hot air inside the housing 1 to flow towards the air outlet pipe 43 and bringing the heat to the outside at an accelerated speed; in the process, the outside air flows in through the air inlet pipe and supplements the air lost in the shell 1; through the process, the temperature inside the shell 1 is effectively controlled, the starting frequency of the miniature air pump is reduced, and electric energy is saved.
As a specific embodiment of the present invention, a first filter 431 and a second filter 411 are respectively disposed on the air outlet pipe 43 and the air inlet pipe 41; the first filter screen 431 is arranged in the middle of the air outlet pipe 43; the second filter screen 411 is arranged at the position of the opening of the air inlet pipe 41; the first filter screen 431 is arranged in a double-layer mode, and a drying agent is filled in the middle of a double-layer gap of the first filter screen 431; the second filter 411 is a spherical structure and located at the outer side of the mouth of the air inlet pipe 41.
During operation, if the cooling air flowing in contains more dust during the cooling process, the dust may adhere to the surface of the circuit element during the cooling process, which may cause problems such as resistance increase, heat dissipation resistance, and circuit element aging, and therefore the first filter screen 431 is disposed in the air inlet duct 41, so that the dust contained in the air entering the interior of the housing 1 is effectively removed; moreover, the first filter screen 431 is arranged in a spherical shape, so that the contact surface of the first filter screen 431 and air is increased, the air inlet area is increased, and the difficulty of blocking the air inlet pipe 41 by dust is improved; and the dust is blocked outside the air inlet pipe 41, when the micro air pump does not work, the first filter screen 431 on the pipe orifice of the air inlet pipe 41 positioned in the outside is blown by natural wind flowing from the outside, the attached dust is easier to fall, and the problem of blockage of the air inlet pipe 41 is further reduced;
furthermore, the air outlet pipe 43 faces the outside at the pipe opening, external air may flow in through the air outlet pipe 43, and in rainy weather, humid air and even splashed raindrops may infiltrate through the air outlet pipe 43, so that the second filter screen 411 is arranged, on one hand, dust and raindrops in the air flowing in through the air outlet pipe 43 are blocked, on the other hand, the drying agent in the double-layer second filter screen 411 can further filter the dust, on the other hand, moisture in the air can be absorbed, and similarly, the drying agent is filled in the cooling groove 42, so that the cooling air flowing in is dried, the drying of the working environment inside the shell 1 is ensured, and the fault of a circuit element caused by the increase of moisture and humidity is avoided; and the drying agent needs to be replaced regularly after being used for a period of time.
As a specific embodiment of the present invention, the fixing posts 44 are uniformly arranged inside the casing 1, the fixing posts 44 are vertically arranged, and the bottoms of the fixing posts 44 extend into the cooling tank 42; the fixing column 44 includes: an inner sleeve 441 and an outer sleeve 442, the outer sleeve 442 being nested outside the inner sleeve 441, and a gap between the inner sleeve 441 and the outer sleeve 442 forming a cooling channel 443; the bottoms of the inner sleeve 441 and the outer sleeve 442 both extend into the cooling tank 42 and are fixedly mounted on the fixed box, and the end part of the outer sleeve 442 extends into the cooling box 5 and is communicated with the inside of the cooling box 5; the end part of the inner sleeve 441 penetrates through the cooling box body 5 and extends into the lower part of the cooling box body 5; a condensing area 11 is arranged at the top of the shell 1, and the condensing area 11 is communicated with the cooling channel 443 and is communicated with the cooling box body 5 through a return pipe 12; the side wall of the inner sleeve 441 is provided with an elongated through groove 444 which is communicated with the inside of the external shell 1, and the cooling channel 443 is not communicated with the through groove 444; the inner sleeve 441 and the outer sleeve 442 are made of aluminum alloy, and the outer surfaces of the inner sleeve and the outer sleeve are both subjected to anodic oxidation treatment.
When the circuit component cooling device works, cooling wind is difficult to enter gaps due to densely distributed circuit components, and the cooling effect on the parts, which are not easy to blow, of the circuit components in the gaps is poor; therefore, the fixing columns 44 are provided, on one hand, a fixing part is needed in the fixing process of a circuit element such as a circuit board, the fixing columns 44 can be used as a fixing part, and the circuit element such as the circuit board can be clamped in the gap and fixed; in this way, the fixing post 44 is located in the gap portion of the circuit element, the fixing post 44 is composed of the inner sleeve 441 and the outer sleeve 442, the cooling channel 443 between the inner sleeve 441 and the outer sleeve 442 is communicated with the inside of the cooling box 5, when the cooling liquid is replenished, too much cooling liquid is injected, so that a part of the cooling liquid enters the cooling channel 443, the temperature of the whole fixing post 44 is lower, and the fixing post 44 located in the middle position of the circuit element can effectively absorb the heat of the surrounding circuit element, thereby playing a cooling effect; a part of the cooling air passing through the cooling slot 42 enters the inner sleeve 441, then flows out from the through slot 444 to uniformly act on the circuit elements at positions close to the gaps between the circuit elements, and is cooled by the cooling liquid in the cooling box 5 at first and then continuously cooled by the cooling liquid in the cooling channel 443 when the cooling air flows in the inner sleeve 441, so that the cooling air can more effectively cool the circuit elements when flowing out through the elongated through slot 444;
further, since the circuit elements may be connected to each other by wires, the wires may swing under the impact of the cooling wind during the blowing action of the cooling wind, which affects the stability of the connection portions with the circuit elements; therefore, in the installation process, the wires can be horizontally wound on the fixing columns 44 in a staggered manner by wiring in the horizontal direction, so that the wires are convenient to limit on one hand, and the cooling of the wires is enhanced by directly absorbing heat through contact on the other hand; the wiring in the vertical direction can embed the electric wire into the through groove 444 in the vertical direction and fix the electric wire through a fixing piece such as a binding belt on the outer side; the side wall of the through groove 444 is covered with a layer of insulating rubber, so that electric leakage is avoided, the limit of the electric wire is enhanced, the width of the channel can be slightly smaller than the diameter of the electric wire, the electric wire can be directly pressed into the inner sleeve 441, and the electric wire can be prevented from blocking the through groove 444 after the heat dissipation and the limit of the electric wire are ensured;
further, in the heat dissipation effect, the cooling liquid absorbs heat and vaporizes, so that gas flows upwards and flows into the condensation area 11, the condensation area 11 is positioned at the top of the shell 1, the part of the side wall of the condensation area 11, which is close to the outer side, is made of a material with good heat conduction performance, so that heat can be guided to the outside, the cooling liquid gas in the condensation area 11 is liquefied at an accelerated speed, the side wall of the condensation area 11 is also provided with semiconductor chilling plates, the hot ends of the semiconductor chilling plates are positioned at the shade of the solar cell panel, and the cold ends of the semiconductor chilling plates are close to the side wall of the condensation area 11, so that the cooling effect is enhanced through the continuous heat transfer, the cooling liquid gas in the condensation area 11 is further cooled and liquefied, the liquefied cooling liquid flows back into the cooling box body 5 through the return pipe 12, and the heat is continuously guided to the outside through the circulating flow of gas-liquid conversion, so that the internal heat dissipation is enhanced;
moreover, the inner sleeve 441 and the outer sleeve 442 made of aluminum alloy have good heat conduction performance, and after anodic oxidation treatment, a layer of insulating oxide film exists on the surface, so that the normal work of the circuit element is prevented from being interfered in the process of contacting with the charged circuit element.
As a specific embodiment of the present invention, two sides of the cooling slot 42 extend to the sidewall of the housing 1, and the sidewall of the cooling slot 42 located on the sidewall of the housing 1 is provided with a second air outlet 422, and the second air outlet 422 is horizontally disposed.
When the cooling device works, a part of cooling air horizontally flows out through the second air outlet 422 on the side wall part of the shell 1 of the cooling groove 42 to cool the circuit element, and is matched with the first air outlet 421 and the through hole 441 on the fixing column 44 to cool the circuit element from the angle of the horizontal direction, so that the cooling effect on the circuit element is more comprehensive and uniform, the cooling effect on the circuit element is further improved, and the normal work of the circuit element is ensured; because the cooling air that the air outlet 421 of a number flows out again can be heated gradually in-process, the radiating effect to the circuit component position at top may be unsatisfactory, consequently through setting up the opening size of No. two air outlets 422 and the interval to air outlet 421 of a number is directly proportional, consequently No. two air outlets 422 openings far away from air outlet 421 of a number are bigger, the intensity of the cooling air that is close to the air outlet 422 of circuit component top position of a number is great like this and flows out, and the temperature is also lower, with the cooling air cooperation that flows out on logical groove 444, make the cooling effect that circuit component received more evenly comprehensive.
As a specific embodiment of the present invention, the transmitting antenna 2 passes through the middle part of the air outlet pipe 43, and the end of the air outlet pipe 43 is a tapered pipe structure; two sides of the transmitting antenna 2 are provided with supporting rods 45, the supporting rods 45 are fixedly arranged on the end part of the air outlet pipe 43, the length of each supporting rod 45 is greater than that of the transmitting antenna 2, and arc-shaped protective bent rods 451 are uniformly arranged on two sides of each supporting rod 45; the supporting rod 45 is a tubular structure, the inside of the supporting rod 45 is communicated with the inside of the air outlet pipe 43, and air outlets 452 are uniformly formed in the position, which is opposite to the transmitting antenna 2, of the end portion of the supporting rod 45.
During operation, during installation and daily maintenance, the transmitting antenna 2 may collide with other objects to cause damage, and therefore, through the installation of the supporting rod 45 and the protective bent rod 451, a net-shaped protection is formed outside the protective antenna, so that the transmitting antenna 2 can be protected during collision with larger objects, direct collision with the body of the transmitting antenna 2 is avoided, the body of the transmitting antenna 2 is prevented from being damaged, and the supporting rod 45 and the protective bent rod 451 are made of non-conductive materials, such as rubber, and the influence on normal operation of the transmitting antenna 2 is avoided; moreover, because the transmitting antenna 2 passes through the middle part of the air outlet pipe 43, the air flowing out flows out along the transmitting antenna 2 in a concentrated manner under the action of the conical structure at the end part of the air outlet pipe 43, and impurities such as moisture, dust and the like possibly existing on the surface of the transmitting antenna 2 are cleaned; and a part of air flowing out of the air outlet pipe 43 flows out of the air outlet hole 452 through the inside of the supporting rod 45, and cleans the surface of the transmitting antenna 2, so that multi-angle comprehensive cleaning of the surface of the transmitting antenna 2 is realized, and the normal work of the transmitting antenna 2 is ensured.
The specific working process is as follows:
the during operation, solar circuit board is at the electricity generation in-process, and neatly arranged is in sunshine sufficient open area to in order to in time detect the voltage output condition on the circuit board, consequently all install voltage detection terminal on every solar circuit board, detect the voltage condition of output at any time, concrete process is as follows: because the battery is not arranged in the detection terminal, circuits in the working process of circuit elements in the detection terminal are supplied by electric energy generated by the solar cell panel, and because the solar cell panel works in the daytime and almost stops working at night due to weak light, the circuit elements in the detection terminal also work in the daytime and keep dormant at night, so that the synchronous operation of power generation and detection is realized; the starting circuit is used for automatically starting the DCDC circuit when the solar panel reaches the starting voltage and supplying energy to the LoRa data sending module circuit;
the DCDC circuit is used for converting the voltage 9.1-50V output by the starting circuit into 3.3V voltage required by the LoRa data transmission module circuit; the LoRa module integrates an SX1262 and an STM8L152 singlechip, an ADC of the STM8L152 singlechip is used for collecting the voltage of the solar panel, the collected data is transmitted to a LoRaWAN gateway through an SX1262 and a transmitting antenna 2 and finally gathered to a cloud server, the generated energy and performance of the solar panel and whether faults exist are given through big data analysis, and the instant detection of the power generation process of the solar panel is realized; the starting circuit, the DCDC circuit and the LoRa data transmission module circuit are the same type of device of the solar cell panel detection device in the prior art, and the specific structure and the working process are similar;
and the hardware part of the circuit assembly 3 such as the circuit board and the components such as the single chip microcomputer are installed inside the casing 1, in the operation process, the circuit components are electrified to work and emit heat, because the temperature sensor can be installed inside, and under the hot condition in summer, the circuit board is installed in the open area with sufficient sunlight, the temperature of the external environment is also higher due to direct sunlight, at the moment, the temperature inside the casing 1 is difficult to be ensured within the safe range only through natural heat dissipation, therefore, after the temperature sensor transmits the temperature data to the cloud server, when the temperature exceeds the safe range, the micro air pump installed inside the air inlet pipe 41 is controlled to be started, the external air is sucked into the casing 1 and flows out through the air outlet 421 on the cooling groove 42, the cooling air passes through the gap of the circuit components inside the casing 1, under the condition that the air flow rate is increased, the heat on the circuit components is dissipated and accelerated, the temperature is effectively controlled, the flowing air heat flows out through the air outlet pipe 43 at the top, and is brought to the outside, so that the normal temperature environment is kept inside the casing 1, the short circuit board is avoided, and the detection of the electric detection terminal is influenced;
further, under the extreme condition of non-summer hot environment, when the temperature of the circuit elements in the housing 1 rises during operation, the internal air expands, and the hot air tends to rise, so that the hot air flows out through the air outlet pipe 43 at the top, because the diameter of the air outlet pipe 43 is smaller, when the hot air flows out through the air outlet pipe 43, under the narrow-tube effect, the flow velocity of the air flowing in the air outlet pipe 43 is faster, and the flow velocity is faster, the air pressure is lower, so that the hot air in the housing 1 is further promoted to flow towards the air outlet pipe 43, and the heat is accelerated to be brought to the outside; in the process, the outside air flows in through the air inlet pipe and supplements the air lost in the shell 1; through the process, the temperature in the shell 1 is effectively controlled, the starting frequency of the miniature air pump is reduced, and electric energy is saved.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A solar panel voltage detection terminal comprises a shell, a transmitting antenna and a circuit assembly, wherein the circuit assembly is installed inside the shell, the transmitting antenna is installed at the top of the shell and is electrically connected with the circuit assembly, the circuit assembly comprises a starting circuit, a DCDC circuit and a LoRa data transmitting module circuit, and the solar panel voltage detection terminal is characterized by further comprising an environment control module used for ensuring the normal working environment inside the shell;
the environment control module includes:
the air inlet pipe is arranged on the lower surface of the bottom of the shell;
the cooling tank is arranged at the bottom of the shell and is communicated with the air inlet pipe;
the first air outlet is uniformly arranged above the cooling tank, and the end part of the first air outlet points to the circuit component;
the air outlet pipe is arranged at the top of the shell;
the cooling box body is arranged in the cooling tank, the cooling liquid is filled in the cooling tank, the bottom of the cooling box body is sunken upwards, and the pipe orifice of the air inlet pipe points to the middle of the sunken part of the bottom of the cooling box body;
the cooling tank is uniformly arranged at the position, close to the concave part, of the bottom of the cooling box body.
2. The solar panel voltage detection terminal according to claim 1, wherein: a first filter screen and a second filter screen are respectively arranged on the air outlet pipe and the air inlet pipe;
the first filter screen is arranged in the middle of the air outlet pipe, and the second filter screen is of a spherical structure and is positioned at the outer side part of the pipe orifice of the air inlet pipe.
The second filter screen is arranged at the position of the pipe orifice of the air inlet pipe, is of a spherical structure and is positioned at the position outside the pipe orifice of the air inlet pipe.
3. The solar panel voltage detection terminal according to claim 2, wherein: the inside fixed column that evenly is equipped with of casing, the vertical setting of fixed column, and the bottom of fixed column extend to inside the cooling bath.
4. The solar cell panel voltage detection terminal of claim 2, wherein the fixing posts comprise: the cooling device comprises an inner sleeve and an outer sleeve, wherein the outer sleeve is nested on the outer side of the inner sleeve, and a gap between the inner sleeve and the outer sleeve forms a cooling channel;
the bottom parts of the inner sleeve and the outer sleeve extend into the cooling tank and are fixedly arranged on the fixed box, and the end part of the outer sleeve extends into the cooling tank and is communicated with the inside of the cooling tank; the end part of the inner sleeve penetrates through the interior of the cooling box body and extends into the lower part of the cooling box body;
and the top of the shell is provided with a condensation area, and the condensation area is communicated with the cooling channel and is communicated with the cooling box body through a return pipe.
5. The solar cell panel voltage detection terminal according to claim 4, wherein: the side wall of the inner sleeve is provided with a strip-shaped through groove which leads to the inside of the external shell, and the cooling channel is not communicated with the through groove.
6. The solar cell panel voltage detection terminal according to claim 5, wherein: the inner sleeve and the outer sleeve are made of aluminum alloy, and the outer surfaces of the inner sleeve and the outer sleeve are both subjected to anodic oxidation treatment.
7. The solar panel voltage detection terminal according to claim 1, wherein: the cooling tank both sides extend to the casing lateral wall, and are located the cooling tank lateral wall of casing lateral wall is equipped with the air outlet No. two, the air outlet level sets up No. two.
8. The solar panel voltage detection terminal according to claim 1, wherein: the transmitting antenna penetrates through the middle part of the air outlet pipe, and the end part of the air outlet pipe is of a conical pipe structure.
9. The solar panel voltage detection terminal according to claim 8, wherein: the both sides of transmitting antenna are equipped with a bracing pole, a bracing pole fixed mounting be in on the air-out pipe end portion, just the length of bracing pole is greater than transmitting antenna's length, a bracing pole both sides evenly are equipped with curved protection knee.
10. The solar panel voltage detection terminal according to claim 9, wherein: the supporting rod is of a tubular structure, the inside of the supporting rod is communicated with the inside of the air outlet pipe, and air outlet holes are uniformly formed in the position, right opposite to the transmitting antenna, of the end portion of the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210925614.5A CN115279141A (en) | 2022-08-03 | 2022-08-03 | Solar cell panel voltage detection terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210925614.5A CN115279141A (en) | 2022-08-03 | 2022-08-03 | Solar cell panel voltage detection terminal |
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| Publication Number | Publication Date |
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| CN115279141A true CN115279141A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210925614.5A Pending CN115279141A (en) | 2022-08-03 | 2022-08-03 | Solar cell panel voltage detection terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134705A (en) * | 2023-10-27 | 2023-11-28 | 江苏智巧科技有限公司 | Solar charge and discharge control device and control system thereof |
-
2022
- 2022-08-03 CN CN202210925614.5A patent/CN115279141A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134705A (en) * | 2023-10-27 | 2023-11-28 | 江苏智巧科技有限公司 | Solar charge and discharge control device and control system thereof |
| CN117134705B (en) * | 2023-10-27 | 2024-01-23 | 江苏智巧科技有限公司 | Solar charge and discharge control device and control system thereof |
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