CN219467557U - Photovoltaic charging power station - Google Patents

Abstract

The utility model discloses a photovoltaic charging power station, which comprises a power supply room, a low-voltage wire inlet cabinet, a low-voltage feed cabinet, a low-voltage compensation cabinet, a high-voltage cabinet, an inverter, a foundation pit, a protection wall, an underground transformer, a photovoltaic car shed, a charging pile and a rest room, wherein the preferential mode is that the photovoltaic car shed is used for generating direct current, the inverter converts the direct current into alternating current, the alternating current is connected to the low-voltage wire inlet cabinet, and the direct current is connected to the charging pile after passing through the low-voltage feed cabinet and the low-voltage compensation cabinet, so that an automobile is charged and power is supplied to an electric appliance; the other is to access the buried transformer through a 10kV high-voltage cable after passing through a high-voltage cabinet, and access the low-voltage power supply into a charging pile after the transformer works to charge the automobile in the photovoltaic car shed. The device simple structure possesses two kinds of charge mode, and each structure can be assembled in the factory, and on-the-spot installation volume is little, and concrete prefabricated construction is few, very big reduction the time limit for a project, the cost is reduced, simultaneously, adopts buried transformer, not only saves the soil, and radiating efficiency is good, satisfies long-term outdoor use needs.

Description

Photovoltaic charging power station

Technical Field

The utility model relates to a charging device, in particular to a photovoltaic charging power station.

Background

The charging station is a device for supplementing electric energy to a new energy automobile (including pure electricity and plug-in mixing), has functions similar to oiling machines in gas stations, can be installed in places such as highways, office buildings, malls, public parking lots, residential district parking lots and the like, has two types of charging stations on the market, one type of charging station is used for generating and charging by solar photovoltaic power, the other type of charging station is used for charging after being connected with 10kV high voltage electricity for transformation, the former type of charging station has the advantage of clean energy, but is greatly influenced by environmental factors such as weather, the latter type of charging station is not limited by the environment, and the defects of incapacity of realizing zero emission, large occupied area of a 10kV transformer and high comprehensive cost are overcome. Along with the increase of sales of new energy automobiles, how to combine the advantages of the two types of charging power stations and to efficiently and rapidly build the charging power stations becomes a key factor for limiting industry development. In view of the above drawbacks, it is necessary to design a photovoltaic charging station.

Disclosure of Invention

The utility model aims to provide a photovoltaic charging power station which has two charging modes, meets the charging requirements under different working conditions, can be assembled in a factory, has small field installation quantity, has fewer concrete prefabricated structures, greatly shortens the construction period, reduces the cost, and simultaneously adopts a buried transformer, thereby saving the land, having good heat dissipation efficiency and meeting the long-term outdoor use requirements.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a photovoltaic power station that charges, includes power house, low pressure cabinet, low-voltage feed cabinet, low-voltage compensation cabinet, high-voltage cabinet, dc-to-ac converter, foundation ditch, dado, buries transformer, photovoltaic bicycle shed, fills electric pile, rest room, low-voltage feed cabinet install in the power house inboard, low-voltage compensation cabinet install in the power house inboard, the high-voltage cabinet install in the inboard of power house, dc-to-ac converter install in the inboard of power house, the foundation ditch set up in the bottom of power house, the dado cartridge in around the foundation ditch, buried the transformer place in the foundation ditch inboard, photovoltaic bicycle shed set up in power house one side, fill electric pile set up in the photovoltaic bicycle shed inboard, the rest room set up in one side of power house.

The utility model is further improved as follows:

further, the buried transformer comprises a box body, a transformer, a heat dissipation mechanism, a turbulence mechanism, a high-voltage fuse, a high-voltage elbow type cable head, a low-voltage wiring terminal, a composite heat conduction rod, an embedded base, a ground plug and a temperature sensor, wherein the box body is arranged in a foundation pit; during operation, high-voltage electricity is input into the transformer through the high-voltage elbow type cable head, the transformer is transformed and then output through the low-voltage cable head, in the process, the transformer works to generate vibration and heat, the turbulence mechanism is used for disturbing insulating oil around the transformer through vibration excitation of the transformer, so that heat is uniformly dispersed around the turbulence mechanism, the heat dissipation mechanism is used for rapidly absorbing the heat of the insulating oil around the turbulence mechanism, one part of the heat is transmitted to the inner wall of the box body through the heat dissipation mechanism, the other part of the heat is rapidly transmitted to the embedded base through the composite heat conducting rod and is inserted into the ground, and heat can be exchanged in the transmission process, so that the heat dissipation efficiency is greatly improved. The high-voltage fuse is a high-voltage current-limiting fuse, and is integrally arranged on the transformer, so that the whole is formed, the outdoor exposure is avoided, the protection design of the fuse is saved, and the protection performance of the fuse is greatly improved. Through installing temperature sensor on the transformer, uploading control system through the RS485 interface gateway, real-time feedback transformer's operating temperature guarantees the reliable operation of transformer, buries the transformer through above design, can export outdoor and then import the structural design underground with heat fast, very big improvement the radiating effect, simultaneously, adopts the pre-buried base of integrated radiating aluminium base board, can direct on-the-spot quick installation, very big when improving the radiating effect shortened construction cycle.

Further, the transformer also include coil, clamp plate, double-screw bolt, the clamp plate place in coil upper and lower both sides, the double-screw bolt run through the clamp plate and compress tightly clamp plate and coil, the material of clamp plate is laminate wood, the cross-section shape of coil is oval, the coil is to bear very big electric power at the in-process of operation, the low-voltage coil bears inward electric power under the short circuit condition, the high-voltage coil bears outward electric power, the cross-section is long circular traditional transformer coil when the during operation, the deformation appears in long circular straightway receives electric power effect great probability, the life of transformer has been shortened, consequently, adopt oval design coil, the atress is even, have stronger structural strength, the rethread multiunit double-screw bolt cooperation leads to the clamp plate tightly compress tightly the coil, under the short circuit condition wholeness is good, can bear the short circuit deformation well, the problem that the transformer life-span that the short circuit leads to is shortened is avoided.

Further, the heat dissipation mechanism still include outer tube, first heat conduction stick, second heat conduction stick, fin, heat dissipation flat board, outer tube quantity be no less than 2, along the upper and lower direction symmetrical arrangement of box, the outer tube is inserted to the one end of first heat conduction stick, first heat conduction stick and outer tube interference fit link to each other, the other end of first heat conduction stick insert the box inboard, the second heat conduction stick run through first heat conduction stick and be located the box inboard, second heat conduction stick and first heat conduction stick interference fit link to each other, the fin run through by the second heat conduction stick, fin and second heat conduction stick welded to each other, the heat dissipation flat board run through the outer tube, heat dissipation flat board and outer tube welded to each other, the fin absorbs the heat of insulating oil near the heat dissipation mechanism and gives heat dissipation flat board through the second heat conduction stick that the material is the red copper to with the heat transfer in the box outside, in this process, the fin of red copper material can transfer heat on the one side, on the other hand can accelerate the heat transfer of insulating oil in the box from the high temperature region to the low temperature region, improves the utilization ratio of insulating oil.

Further, vortex mechanism still include support, connecting rod, plug-in block, trembler, the quantity of support is 2, along the upper and lower direction symmetrical arrangement of transformer, the connecting rod run through the support, the connecting rod pass through the bolt with the support and link to each other, the plug-in block is run through by the connecting rod and be located the coil outside, plug-in block and connecting rod screw thread link to each other, the trembler install in the plug-in block outside, because vortex mechanism links firmly with the transformer, produce heat and vibration when transformer work, the vibration transmits the connecting rod through the support to drive the vibration that links firmly with the plug-in block, because the transformer work, the heat concentrates near the coil, consequently, the vibration of installing coil one side produces thrust to the insulating oil around and makes the insulating oil local flow, realizes the transmission of heat.

Furthermore, the material of the plug-in block is red copper, and the thickness is 0.3-0.5mm.

Further, the compound heat conduction stick still include fine pipe of glass, third heat conduction stick install in the dull and stereotyped outside of heat dissipation, fine pipe of glass adorn in the outside of third heat conduction stick, the fine pipe of glass is used for thermal-insulated and protection of heat preservation, improves the heat conduction effect of third heat conduction stick.

Further, the embedded base also comprises an aluminum substrate, a concrete piece and an anchor hook, wherein the aluminum substrate is positioned at the lower end of the third heat conduction rod and at the lower end of the box body, the aluminum substrate is respectively connected with the third heat conduction rod and the box body through bolts, the aluminum substrate is embedded at the top of the concrete piece, the upper end face of the concrete piece is overlapped with the upper end face of the aluminum substrate, the anchor hook is positioned between the aluminum substrate and the concrete piece, and the anchor hook is fixedly riveted with the aluminum substrate.

Further, the ground insert still include second sleeve pipe, fourth heat conduction stick, the fourth heat conduction stick install in aluminium base board lower extreme, the outside of second sleeve pipe suit in fourth heat conduction stick, aluminium base board can absorb the heat of third heat conduction stick and bottom half transmission to by fourth heat conduction stick transfer underground, improve radiating effect and efficiency, the second sleeve pipe material is the stainless steel, during the installation, can insert in mud ground or the sand ground directly to fix pre-buried base, simultaneously, the fourth heat conduction stick can be with aluminium base board absorptive heat fast leading-in underground, realizes high-efficient heat dissipation.

Further, the first heat conduction rod, the second heat conduction rod, the third heat conduction rod and the fourth heat conduction rod are made of red copper, heat conducted out by the heat dissipation mechanism is conducted into the ground through the third heat conduction rod, the aluminum substrate and the fourth heat conduction rod, the heat dissipation effect is improved, meanwhile, the third heat conduction rod can also fix the box body, and the installation reliability is improved.

Compared with the prior art, the photovoltaic charging power station has the advantages that the low-voltage wire inlet cabinet, the low-voltage power supply cabinet, the low-voltage compensation cabinet, the high-voltage cabinet and the inverter are integrated in the power supply room, two working modes can be met, the priority mode is that the photovoltaic car shed is utilized to generate direct current, the inverter converts the direct current into alternating current to be connected into the low-voltage wire inlet cabinet, and the alternating current is connected into the charging pile and the electric appliance in the rest room after passing through the low-voltage power supply cabinet and the low-voltage compensation cabinet, so that the car is charged and the electric appliance is powered; the other mode is that a high-voltage elbow type cable head of a buried transformer is connected to a high-voltage cable through a high-voltage cabinet, a low-voltage cable (400V) is input into a low-voltage cable inlet cabinet through a low-voltage cable terminal after the transformer works, and a charging pile is connected to the low-voltage cable inlet cabinet and the low-voltage cable inlet cabinet, so that an automobile in a photovoltaic car shed is charged and electric appliances in a rest room are powered. In the two modes, the current transformer and the voltage sensor are arranged in the inverter, the high-voltage cabinet and the charging pile, and are uploaded to the control system through the communication module, and the control system compares the difference between the current data and the voltage data in the charging pile and the current data and the voltage data in the inverter or the high-voltage cabinet, so that the working state of the charging pile, such as charging time, faults and the like, can be determined. During installation, the foundation pit of a concrete foundation is not required to be processed, the foundation of a power supply room, a photovoltaic car shed and a rest room is only required to be predicted on the ground, the power supply room, the photovoltaic car shed and the rest room are of an assembled structure, manufacturers are all assembled in the factories, meanwhile, the periphery of the foundation pit is protected by a protection wall formed by waterproof plates to be subjected to waterproof treatment, and the buried transformer can be directly installed in the foundation pit. The device simple structure possesses two kinds of charge mode, satisfies the demand of charging under the different operating modes, and each structure can be at the in-plant equipment, and on-the-spot installation quantity is little, and concrete prefabricated construction is few, very big reduction the time limit for a project, the cost is reduced, simultaneously, adopts buried transformer, not only saves the soil, and radiating efficiency is good, satisfies long-term outdoor use needs.

Drawings

FIG. 1 shows a front view of the present utility model

FIG. 2 shows a rear view of the present utility model

FIG. 3 is a schematic view showing the structure of the buried transformer of the present utility model

Fig. 4 shows a schematic diagram of the transformer structure of the present utility model

Fig. 5 is a schematic view showing a heat dissipation mechanism according to the present utility model

FIG. 6 is a schematic view showing a spoiler mechanism according to the present utility model

In the figure: the power supply room 1, the low-voltage wire inlet cabinet 2, the low-voltage power supply cabinet 3, the low-voltage compensation cabinet 4, the high-voltage cabinet 5, the inverter 6, the foundation pit 7, the retaining wall 8, the buried transformer 9, the photovoltaic car shed 10, the charging pile 11, the rest room 12, the box 901, the transformer 902, the heat dissipation mechanism 903, the spoiler mechanism 904, the high-voltage fuse 905, the high-voltage elbow type cable head 906, the low-voltage wire terminal 907, the composite heat conducting rod 908, the pre-buried base 909, the ground plug 910, the temperature sensor 911, the coil 912, the pressing plate 913, the stud 914, the outer sleeve 915, the first heat conducting rod 916, the second heat conducting rod 917, the fin 918, the heat dissipation plate 919, the support 920, the connecting rod 921, the plug-in block 922, 923, the glass fiber tube 924, the third heat conducting rod 925, the aluminum base 926, the concrete piece 927, the anchor hook 928, the second sleeve 929 and the fourth heat conducting rod 930.

Detailed Description

As shown in fig. 1 to 6, a photovoltaic charging station comprises a power house 1, a low-voltage wire feeding cabinet 2, a low-voltage power feeding cabinet 3, a low-voltage compensation cabinet 4, a high-voltage cabinet 5, an inverter 6, a foundation pit 7, a protection wall 8, an underground transformer 9, a photovoltaic car shed 10, a charging pile 11 and a rest room 12, wherein the low-voltage wire feeding cabinet 2 is installed at the inner side of the power house 1, the low-voltage power feeding cabinet 3 is installed at the inner side of the power house 1, the low-voltage compensation cabinet 4 is installed at the inner side of the power house 1, the high-voltage cabinet 5 is installed at the inner side of the power house 1, the inverter 6 is installed at the inner side of the power house 1, the foundation pit 7 is arranged at the bottom of the power house 1, the protection wall 8 is inserted around the foundation pit 7, the underground transformer 9 is placed at the inner side of the foundation pit 7, the photovoltaic car shed 10 is arranged at one side of the power house 1, the charging pile 11 is arranged at the inner side of the photovoltaic car shed 10, the rest room 12 is arranged at one side of the power supply room 1, the buried transformer 9 comprises a box body 901, a transformer 902, a heat dissipation mechanism 903, a turbulence mechanism 904, a high-voltage fuse 905, a high-voltage elbow type cable head 906, a low-voltage terminal 907, a composite heat conducting rod 908, a pre-buried base 909, a ground plug 910 and a temperature sensor 911, wherein the box body 901 is arranged in a foundation pit 7, the transformer 901 is arranged at the inner side of the box body 901, insulating oil is filled at the inner side of the box body 901, the number of the heat dissipation mechanisms 903 is not less than 4, the heat dissipation mechanisms are symmetrically arranged at the periphery of the box body 901, the number of the turbulence mechanisms 904 is not less than 4, the heat dissipation mechanisms are symmetrically arranged at the periphery of the transformer 902, the high-voltage fuse 905 is arranged at the upper end of the box body 901 and is electrically connected with the transformer 902, the high-voltage elbow type cable head 906 is arranged at the upper end of the box body 901 and is electrically connected with the transformer 902, the low-voltage wiring terminal 907 is arranged at the upper end of the box body 901 and is electrically connected with the transformer 902, the composite heat conduction rod 908 is arranged at the outer side of the heat dissipation mechanism 903, the embedded base 909 is arranged at the lower end of the box body 901 and is arranged at the lower end of the composite heat conduction rod 908, the embedded base 909 is respectively connected with the box body 901 and the composite heat conduction rod 908 through bolts, the ground plug 910 is arranged at the lower end of the embedded base 909, the ground plug 910 is connected with the embedded base 909 through bolts, the temperature sensor 911 is inserted at the top of the box body 901, during installation, the ground plug 910 is inserted into a soil pit, the ground plug 910 is prevented from being connected and fixed with the embedded base 909 in the soil pit, the assembled box body 901 is placed on the embedded base 909 and is connected and fixed with the embedded base 908, and finally the composite heat conduction rod 908 is arranged and fixed; during operation, high-voltage electricity is input into the transformer 902 through the high-voltage elbow type cable head 906, is transformed by the transformer 902 and then is output through the low-voltage terminal 907, in the process, the transformer 902 works to generate vibration and heat, the turbulence mechanism 904 is used for disturbing surrounding insulating oil through vibration excitation of the transformer 902, so that heat is uniformly dispersed around the turbulence mechanism 904, the heat dissipation mechanism 903 is used for rapidly absorbing heat of the insulating oil around the turbulence mechanism 904, one part of heat is transmitted to the inner wall of the box 901 through the heat dissipation mechanism 903, the other part of heat is rapidly transmitted to the embedded base 909 through the composite heat conducting rod 908 and is transmitted into the ground through the ground plug 910, and heat can be exchanged in the transmission process, so that the heat dissipation efficiency is greatly improved. The high-voltage fuse 905 is a high-voltage current-limiting fuse, and is integrally arranged on the transformer 902 to form a whole, so that the fuse is prevented from being exposed outdoors, the protection design of the fuse is saved, the protection performance of the fuse is greatly improved, the temperature sensor 911 is arranged on the transformer 902, the temperature sensor 911 is uploaded to a control system through an RS485 interface gateway, the operation temperature of the transformer 902 is fed back in real time, the reliable operation of the transformer 902 is ensured, the buried transformer 9 is designed through the above, the heat can be quickly led out outdoors and then led into the structural design under the ground, the heat dissipation effect is greatly improved, meanwhile, the embedded base of the integrated heat dissipation aluminum substrate is adopted, the on-site quick installation can be directly realized, the construction period is greatly shortened while the heat dissipation effect is improved, the transformer 902 also comprises a coil 912, a pressing plate 913 and a stud 914, the pressing plate 913 is arranged at the upper side and the lower side of the coil 912, the studs 914 penetrate the pressing plate 913 and press the pressing plate 913 and the coil 912, the pressing plate 913 is made of laminated wood, the section of the coil 912 is elliptical, the coil 912 bears very large electromotive force in the running process, the low-voltage coil bears inward electromotive force in the short-circuit condition, the high-voltage coil bears outward electromotive force, the long-circular traditional transformer coil with the section has large probability of deformation under the action of the electromotive force in the long-circular straight line section when working, the service life of the transformer 902 is shortened, therefore, the coil 912 is uniformly stressed by adopting elliptical design, has strong structural strength, the coil 912 is tightly pressed by a plurality of groups of studs 914 in cooperation with the pressing plate 913, the integrity is good in the short-circuit condition, the short-circuit deformation is well borne, the problem of shortening the service life of the transformer 902 caused by short-circuit is avoided, the heat dissipation mechanism 903 further comprises an outer sleeve 915, a first heat conducting rod 916, a second heat conducting rod 917, fins 918 and a heat dissipation flat plate 919, wherein the number of the outer sleeve 915 is not less than 2, the outer sleeve 915 is symmetrically arranged along the up-down direction of the box 901, one end of the first heat conducting rod 916 is inserted into the outer sleeve 915, the first heat conducting rod 916 is connected with the outer sleeve 915 in an interference fit manner, the other end of the first heat conducting rod 916 is inserted into the inner side of the box 901, the second heat conducting rod 917 penetrates through the first heat conducting rod 916 and is positioned at the inner side of the box 901, the second heat conducting rod 917 is connected with the first heat conducting rod 916 in an interference fit manner, the fins 918 are penetrated by the second heat conducting rod 917, the fins 918 are connected with the second heat conducting rod 917 in a welding manner, the heat dissipation flat plate 919 is penetrated by the outer sleeve 915, the heat dissipation flat plate 919 is connected with the outer sleeve 915 in a welding manner, the fin 918 made of red copper absorbs heat of insulating oil near the spoiler mechanism 904 and rapidly transmits the heat to the heat dissipation plate 919 through the second heat conduction rod 917 made of red copper, so that the heat in the box 902 is transmitted to the outer side of the box 902, in the process, the fin 918 made of red copper can transmit heat on one hand and can accelerate the heat of the insulating oil in the box 902 from a high temperature area to a low temperature area on the other hand, the utilization rate of the insulating oil is improved, the spoiler mechanism 904 further comprises a support 920, a connecting rod 921, a plugging block 922 and a vibrating piece 923, the number of the support 920 is 2, the support 920 is symmetrically arranged along the up-down direction of the transformer 902, the connecting rod 921 penetrates through the support 920, the connecting rod 921 is connected with the support 920 through bolts, the plugging block 923 is penetrated by the connecting rod 921 and is positioned at the outer side of the coil 912, the plugging block 922 is connected with the connecting rod 921 through threads, the vibrating piece 923 is arranged at the outer side of the vibrating piece 922, because the turbulent flow mechanism 904 is fixedly connected with the transformer 902, when the transformer 902 works, heat and vibration are generated, the vibration is transmitted to the connecting rod 921 through the bracket 920, so as to drive the vibration piece 923 fixedly connected with the plug block 922 to vibrate, and because the heat is concentrated near the coil 912 when the transformer 902 works, the vibration piece 923 arranged at one side of the coil 912 generates thrust to the surrounding insulating oil so as to enable the insulating oil to locally flow, thereby realizing heat transmission, the vibration piece 923 is made of red copper with the thickness of 0.3-0.5mm, the vibration piece 923 made of red copper has good elasticity and heat conductivity, multiple groups of vibration pieces 923 with the thickness of 0.3-0.5mm can rapidly vibrate and conduct heat, the composite heat conducting rod 908 further comprises a glass fiber tube 924 and a third heat conducting rod 925, the third heat conducting rod 925 is arranged at the outer side of the heat radiating flat plate 919, the glass fiber tube 924 is sleeved at the outer side of the third heat conducting rod 925, the glass fiber tube 924 is used for heat insulation and protection, improving the heat conduction effect of the third heat conduction rod 925, the embedded base 909 further comprises an aluminum base plate 926, a concrete member 927 and an anchor hook 928, the aluminum base plate 926 is positioned at the lower end of the third heat conduction rod 925 and at the lower end of the box 901, the aluminum base plate 926 is respectively connected with the third heat conduction rod 925 and the box 901 through bolts, the aluminum base plate 926 is embedded at the top of the concrete member 927, the upper end face of the concrete member 927 coincides with the upper end face of the aluminum base plate 926, the anchor hook 928 is positioned between the aluminum base plate 926 and the concrete member 927, the anchor hook 928 and the aluminum base plate 926 are riveted and fixed, the ground plug 910 further comprises a second sleeve 929 and a fourth heat conduction rod 930, the fourth heat conduction rod 930 is arranged at the lower end of the aluminum base plate 926, the second sleeve 929 is sleeved at the outer side of the fourth heat conduction rod 930, the aluminum substrate 926 can absorb heat transferred by the third heat conducting rod 925 and the bottom of the box 902, and is transferred into the ground by the fourth heat conducting rod 930, so that the heat dissipation effect and efficiency are improved, the second sleeve 929 is made of stainless steel, during installation, the second sleeve 929 can be directly inserted into mud or sand, so that the embedded base 909 is fixed, meanwhile, the fourth heat conducting rod 930 can quickly guide the heat absorbed by the aluminum substrate 926 into the ground, high-efficiency heat dissipation is realized, the materials of the first heat conducting rod, the second heat conducting rod, the third heat conducting rod and the fourth heat conducting rod are red copper, the heat led out by the heat dissipation mechanism 903 is led into the ground by the third heat conducting rod 925, the aluminum substrate 926 and the fourth heat conducting rod 930, so that the heat dissipation effect is improved, meanwhile, the third heat conducting rod 925 can also fix the box 901, so that the installation reliability is improved, the photovoltaic charging power station is integrated in the power supply room 1, the low-voltage power supply cabinet 2, the low-voltage power supply cabinet 3, the low-voltage compensation cabinet 4, the high-voltage cabinet 5 and the inverter 6 can satisfy two working modes, and the preferred modes are that the photovoltaic cabinet 10 is used for generating the direct current and is connected into the low-voltage power supply pile 4 through the low-voltage power supply cabinet 11 and the low-voltage power supply pile 11; the other mode is that a high-voltage elbow type cable head 906 of a buried transformer 9 is connected to a 10kV high-voltage cable through a high-voltage cabinet 5, a low-voltage power (400V) is input into a low-voltage wire inlet cabinet 2 through a low-voltage wire terminal 907 after the transformer 902 works, and a charging pile 11 is connected to the transformer through a low-voltage power feeding cabinet 3 and a low-voltage compensation cabinet 4, so that an automobile in a photovoltaic car shed 10 is charged and electric appliances of a rest room 12 are powered. In the two modes, the current transformer and the voltage sensor are installed in the inverter 6, the high-voltage cabinet 5 and the charging pile 11, and are uploaded to the control system through the communication module, and the control system compares the difference between the current and voltage data in the charging pile 11 and the current and voltage data in the inverter 6 or the high-voltage cabinet 5, so that the working state of the charging pile 11, such as charging time, faults and the like, can be determined. During installation, the foundation pit 7 with a concrete foundation is not required to be processed, the foundation of the power supply room 1, the photovoltaic carport 10 and the rest room 12 is only required to be predicted on the ground, the power supply room 1, the photovoltaic carport 10 and the rest room 12 are all of an assembled structure, manufacturers are all assembled in the factory, meanwhile, the periphery of the foundation pit 7 is subjected to waterproof treatment by using the retaining wall 8 formed by waterproof plates, the buried transformer 9 can be directly installed in the foundation pit 7, the construction period can be shortened through the design, and the overall cost is reduced. The device simple structure possesses two kinds of charge mode, satisfies the demand of charging under the different operating modes, and each structure can be at the in-plant equipment, and on-the-spot installation quantity is little, and concrete prefabricated construction is few, very big reduction the time limit for a project, the cost is reduced, simultaneously, adopts buried transformer, not only saves the soil, and radiating efficiency is good, satisfies long-term outdoor use needs.

The present utility model is not limited to the above-described specific embodiments, and various modifications may be made by those skilled in the art without inventive effort from the above-described concepts, and are within the scope of the present utility model.

Claims (10)

1. The utility model provides a photovoltaic power station that charges, its characterized in that includes power supply room, low pressure inlet wire cabinet, low voltage feed cabinet, low voltage compensation cabinet, high-voltage cabinet, dc-to-ac converter, foundation ditch, dado, buried transformer, photovoltaic bicycle shed, fill electric pile, rest room, low voltage inlet wire cabinet install in the power supply room inboard, low voltage feed cabinet install in the power supply room inboard, low voltage compensation cabinet install in the power supply room inboard, the high-voltage cabinet install in the inboard of power supply room, the dc-to-ac converter install in the inboard of power supply room, the foundation ditch set up in the bottom of power supply room, the dado cartridge in around the foundation ditch, buried transformer place in the foundation ditch inboard, photovoltaic bicycle shed set up in power supply room one side, fill electric pile set up in the photovoltaic bicycle shed inboard, the rest room set up in one side of power supply room.

2. The photovoltaic charging power station of claim 1, wherein the buried transformer comprises a box body, a transformer, a heat dissipation mechanism, a turbulence mechanism, a high-voltage fuse, a high-voltage elbow type cable head, a low-voltage wiring terminal, a composite heat conducting rod, an embedded base, a ground plug and a temperature sensor, wherein the box body is arranged in the foundation pit, the transformer is arranged on the inner side of the box body, insulating oil is filled in the inner side of the box body, the heat dissipation mechanism is symmetrically arranged around the box body, the turbulence mechanism is symmetrically arranged around the transformer, the high-voltage fuse is arranged at the upper end of the box body and is electrically connected with the transformer, the high-voltage elbow type cable head is arranged at the upper end of the box body and is electrically connected with the transformer, the composite heat conducting rod is arranged on the outer side of the heat dissipation mechanism, the embedded base is arranged at the lower end of the box body and is arranged at the lower end of the composite heat conducting rod, the box body and the embedded base is respectively connected with the ground plug and the top of the embedded base through the embedded bolt.

3. The photovoltaic charging station of claim 2, wherein the transformer further comprises a coil, a pressing plate and studs, the pressing plate is arranged on the upper side and the lower side of the coil, the studs penetrate through the pressing plate and press the pressing plate and the coil, the pressing plate is made of laminated wood, and the section of the coil is elliptical.

4. The photovoltaic charging power station of claim 2, wherein the heat dissipation mechanism further comprises an outer sleeve, a first heat conduction rod, a second heat conduction rod, fins and a heat dissipation flat plate, the number of the outer sleeves is not less than 2, the outer sleeves are symmetrically arranged along the up-down direction of the box body, one end of the first heat conduction rod is inserted into the outer sleeve, the first heat conduction rod is connected with the outer sleeve in an interference fit manner, the other end of the first heat conduction rod is inserted into the inner side of the box body, the second heat conduction rod penetrates through the first heat conduction rod and is positioned at the inner side of the box body, the second heat conduction rod is connected with the first heat conduction rod in an interference fit manner, the fins are penetrated by the second heat conduction rod, the fins are connected with the second heat conduction rod in a welding manner, the heat dissipation flat plate is penetrated by the outer sleeve, and the heat dissipation flat plate is connected with the outer sleeve in a welding manner.

5. The photovoltaic charging station of claim 3, wherein the turbulent flow mechanism further comprises a support, connecting rods, plug-in blocks and vibration pieces, the number of the supports is 2, the supports are symmetrically arranged along the up-down direction of the transformer, the connecting rods penetrate through the supports, the connecting rods are connected with the supports through bolts, the plug-in blocks are penetrated by the connecting rods and are located outside the coils, the plug-in blocks are connected with the connecting rods through threads, and the vibration pieces are mounted on the outer sides of the plug-in blocks.

6. The photovoltaic charging station of claim 5, wherein the vibrating piece is made of red copper and has a thickness of 0.3-0.5mm.

7. The photovoltaic charging station of claim 4, wherein the composite heat conducting rod further comprises a glass fiber tube and a third heat conducting rod, the third heat conducting rod is arranged on the outer side of the heat dissipation plate, and the glass fiber tube is sleeved on the outer side of the third heat conducting rod.

8. The photovoltaic charging power station of claim 7, wherein the pre-buried base further comprises an aluminum substrate, a concrete member and an anchor hook, the aluminum substrate is located at the lower end of the third heat conducting rod and is located at the lower end of the box body, the aluminum substrate is connected with the third heat conducting rod and the box body through bolts respectively, the aluminum substrate is pre-buried at the top of the concrete member, the upper end face of the concrete member coincides with the upper end face of the aluminum substrate, the anchor hook is located between the aluminum substrate and the concrete member, and the anchor hook is riveted and fixed with the aluminum substrate.

9. The photovoltaic charging station of claim 8, wherein the ground plug further comprises a second sleeve and a fourth heat conducting rod, the fourth heat conducting rod is mounted at the lower end of the aluminum substrate, and the second sleeve is sleeved at the outer side of the fourth heat conducting rod.

10. The photovoltaic charging station of claim 9, wherein the first heat conducting rod, the second heat conducting rod, the third heat conducting rod and the fourth heat conducting rod are all made of red copper.