CN210183287U

CN210183287U - Solar string tester

Info

Publication number: CN210183287U
Application number: CN201921131433.5U
Authority: CN
Inventors: Changqian Ye; 叶长乾
Original assignee: NINGBO KELUN SOLAR ENERGY CO Ltd
Current assignee: NINGBO KELUN SOLAR ENERGY CO Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-03-24
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a solar string tester, which comprises a box body, wherein the box body comprises an upper half part and a lower half part which are hinged through a connecting shaft, a detection circuit is arranged in the lower half part and comprises a high-voltage bridge stack UR, a current-limiting resistor R1, a high-power wire-wound resistor R2, an ammeter A, a storage battery B, a rechargeable 9V power supply battery and a battery low-voltage detector, the detection end of the battery low-voltage detector is connected with the positive electrode of the 9V power supply battery, the output end of the battery low-voltage detector is connected with a singlechip which can control and switch whether to supply power or not, the 3 feet of the positive electrode of the output end of the high-voltage bridge stack UR are connected with a high-power wire-wound resistor R2, the 4 feet of the negative electrode of the output end of the high-voltage bridge stack UR are connected with a current-limiting resistor R1, the other end of current-limiting resistor R1 and high-power wire-wound resistor R2 are connected with the jaw fish clamp respectively, and a positioning groove matched with the jaw fish clamp is arranged in the upper half part. This structure is convenient to be operated, realizes self-charging.

Description

Solar string tester

Technical Field

The utility model relates to a technical field of tester, especially solar energy cluster tester.

Background

With the increasing construction scale of distributed photovoltaic power stations, the traditional power station management method is not suitable, and some potential hidden dangers gradually arouse the attention of power station holders, such as whether components are intact, whether the generated energy is enough, whether the generating efficiency is in a normal range, and the like.

The method aims at solving the problems that whether the string operation of a user site is normal or not and whether the photovoltaic string has poor contact, poor assembly and wrong threading are required to be detected, so a set of test equipment is required, but the conventional test equipment generally needs to use a 9V power supply, so the test equipment cannot be used under the condition that the voltage of the power supply is insufficient when in use, and because the conventional test equipment adopts a disposable power supply or adopts commercial power to convert the commercial power into 9V power supply voltage, but the photovoltaic string is arranged in a plurality of places outside, so the commercial power needs to be additionally connected with a power supply, so the conventional test equipment for the solar string is inconvenient to operate, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solar energy cluster tester for solving the defects of the prior art.

In order to achieve the above object, the solar string tester designed by the utility model comprises a box body, the box body comprises an upper half part and a lower half part which are hinged through a connecting shaft, a detection circuit is arranged in the lower half part, the detection circuit comprises a high-voltage bridge stack UR, a current-limiting resistor R1, a high-power wire-wound resistor R2, an ammeter a, a storage battery B, a rechargeable 9V power supply battery and a battery low-voltage detector, the positive pole of the 9V power supply battery is connected with the positive pole 1 pin of the input end of the high-voltage bridge stack UR through a control switch K, the negative pole of the 9V power supply battery is connected with the negative pole 2 pin of the input end of the high-voltage bridge stack UR, the ammeter a is connected between the positive pole 1 pin of the input end of the high-voltage bridge stack UR and the negative pole 2 pin of the input end of the high-voltage bridge stack UR, the detection end of the battery low-voltage detector is connected with, the single chip microcomputer is connected with a first relay switch, one end of two ends of a first coil M1 of the first relay switch is connected with a storage battery B through a voltage stabilizing circuit with 5V output, the other end of the two ends of the first coil M1 of the first relay switch is connected with a grounding terminal GND, a normally closed switch K1 of the first relay switch is connected between the storage battery B and a control switch K, the output of the voltage stabilizing circuit is also connected with a second relay switch, a second coil M2 of the second relay switch is connected between the voltage stabilizing circuit and the single chip microcomputer, a normally open switch K2 of the second relay switch is connected between the storage battery B and a 9V power supply battery to charge the 9V power supply battery when the normally open switch K2 is closed, a high-power wire-wound resistor R2 is connected with a positive electrode 3 pins of an output end of the high-voltage bridge UR, a current-limiting resistor R1 is connected with a negative electrode 4 pins of the output end of, the upper half part is provided with a positioning groove matched with the jaw fish clip.

In order to realize multiple functions, the product can realize night illumination and a solar power supply mode, a mounting groove is arranged in the upper half part, rotating shafts are rotatably connected to two sides of the mounting groove, a positioning bracket is fixed between the two rotating shafts, a mounting plate is arranged on the upper surface of the positioning bracket, LED lamp beads electrically connected with a storage battery B are fully distributed in the mounting plate, the positioning bracket is of an inner cavity structure with one side being provided with an opening, a solar photovoltaic panel assembly capable of being pulled out from the opening is inserted in the inner cavity of the positioning bracket and is electrically connected with the storage battery B, a first limiting table for positioning the rotation angle of the positioning bracket is arranged on the right side of the mounting groove, a second limiting table for ensuring that the positioning bracket is in an initial horizontal state is arranged on the left side of the mounting groove, and the depth of the first limiting table is lower than that of the second limiting table, and the storage battery B is electrically connected with the solar photovoltaic panel component.

For the convenience of location, finally conveniently take out the photovoltaic board and realize the solar energy power supply effect, solar photovoltaic board subassembly includes the photovoltaic support and installs the photovoltaic board in the photovoltaic support, all is equipped with magnet near the open-ended both sides in locating support cavity bottom, be equipped with around the photovoltaic support lower surface can with magnet complex iron sheet.

For the convenience of positioning, a positioning rod hinged with the positioning support is arranged on the outer side below the opening of the positioning support, and a limiting groove matched with the positioning rod is arranged on the upper half part.

The utility model discloses the solar energy cluster tester who obtains realizes that the overall structure operation is simpler, and equipment can assemble into a whole moreover, conveniently carries, and the circuit can not be too chaotic, and the later stage can realize automatic charging moreover, improves the portability.

Drawings

FIG. 1 is a schematic perspective view of a solar string tester in example 1;

FIG. 2 is a schematic view of the solar string tester of embodiment 1 when it is opened;

FIG. 3 is a schematic diagram of a detection circuit in embodiment 1;

FIG. 4 is a schematic perspective view of a solar string tester according to embodiment 2;

fig. 5 is a schematic structural view of the positioning bracket in example 2 when the solar photovoltaic panel assembly is pulled out;

FIG. 6 is a schematic perspective view of a solar string tester in example 2 without a positioning bracket;

fig. 7 is a left side view of the positioning bracket in example 2.

In the figure: the solar photovoltaic module comprises a box body 1, an upper half portion 1-1, a lower half portion 1-2, a mounting groove 2, a rotating shaft 3, a positioning support 4, a mounting plate 5, LED lamp beads 6, an opening 7, a solar photovoltaic panel assembly 8, a first limiting platform 9, a detection circuit 10, a power supply battery 12, a battery low-voltage detector 11, a single chip microcomputer 13, a jaw fish clamp 14, a photovoltaic support 15, a photovoltaic panel 16, a magnet 17, an iron sheet 18, a positioning rod 19, a limiting groove 20, a voltage stabilizing circuit 21, a connecting shaft 22, a positioning groove 23, a first relay switch 24, a second relay switch 25 and a second limiting platform 26.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1:

as shown in fig. 1, fig. 2 and fig. 3, the solar string tester provided in this embodiment includes a box 1, and is characterized in that the box 1 includes an upper half 1-1 and a lower half 1-2 hinged to each other by a connecting shaft 22, a detection circuit 10 is disposed in the lower half 1-2, the detection circuit 10 includes a high-voltage bridge UR, a current-limiting resistor R1, a high-power wire-wound resistor R2, an ammeter a, a storage battery B, a rechargeable 9V power supply battery 12 and a battery low-voltage detector 11, a positive electrode of the 9V power supply battery 12 is connected to a positive electrode 1 pin of an input terminal of the high-voltage bridge UR through a control switch K, a negative electrode of the 9V power supply battery 12 is connected to a negative electrode 2 pin of the input terminal of the high-voltage bridge UR, the ammeter a is connected between the positive electrode 1 pin of the input terminal of the high-voltage bridge UR and the negative electrode 2 pin of the input terminal of the, the detection end of the battery low-voltage detector 11 is connected with the positive electrode of a 9V power supply battery 12, the output end of the battery low-voltage detector 11 is connected with a single chip microcomputer 13, the single chip microcomputer 13 is connected with a first relay switch 24, one end of two ends of a first coil M1 of the first relay switch 24 is connected with a storage battery B through a voltage stabilizing circuit 21 with 5V output, the other end of the first relay switch 24 is connected with a ground end GND, a normally closed switch K1 of the first relay switch 24 is connected between the storage battery B and a control switch K, the output of the voltage stabilizing circuit 21 is also connected with a second relay switch 25, a second coil M2 of the second relay switch 25 is connected between the voltage stabilizing circuit 21 and the single chip microcomputer 13, a normally open switch K2 of the second relay switch 25 is connected between the storage battery B and the 9V power supply battery 12 to charge the 9V, the high-power wire-wound resistor R2 is connected to 3 feet of the output end positive pole of high-voltage bridge pile UR, and current-limiting resistor R1 is connected to 4 feet of the output end negative pole of high-voltage bridge pile UR, the other end of current-limiting resistor R1 and the other end of high-power wire-wound resistor R2 are connected with the jaw fish clamp 14 respectively, and a positioning groove 23 matched with the jaw fish clamp 14 is arranged in the upper half part 1-1.

When the solar battery pack string detection device works, the voltages at two ends of the 9V power supply battery 12 are detected in real time through the detection end of the battery low-voltage detector 11, once the voltages at two ends of the 9V power supply battery 12 are found to be smaller than a preset voltage range, a signal is immediately sent to the single-chip microcomputer 13, the single-chip microcomputer 13 obtains the signal and then sends the signal to the first relay switch 24 to be opened, so that the first coil M1 of the first relay switch 24 is electrified and conducted, and finally the normally closed switch K1 of the first relay switch 24 is changed from the original normally closed state to the normally open state, even if the control switch K is pressed, the solar battery pack string cannot be detected, the second relay switch 25 works, the second coil M2 of the second relay switch 25 is electrified and attracted, then the normally open switch K2 connected to the second relay switch 25 is driven to be closed, and at the 9V power supply battery 12 is charged through the, after the charging is completed, the normally closed switch K1 of the first relay switch 24 is reset, and at the same time, the normally open switch K2 of the second relay switch 25 is reset, so that the process of automatically detecting the power supply voltage of the solar string tester and automatically charging is finally realized, and the overall structure is relatively simple, and the applicant needs to explain that the single chip microcomputer 13 in the embodiment belongs to any commercially available model, and how the single chip microcomputer 13 obtains signals to control the specific programming of the device to work belongs to the conventional technical means in the field, so that detailed description is not given, and meanwhile, the specific structures of the battery low-voltage detector 11 and the voltage stabilizing circuit 21 with 5V output belong to the conventional technology in the field, for example: for example, the battery low voltage detector 11 may be formed by an integrated operational amplifier and a peripheral circuit, and a specific circuit structure for obtaining a 5v regulated output common power from the voltage of the battery through the voltage regulator circuit 21 is also a conventional technology, and may be implemented in various ways, and therefore, will not be described in detail.

In addition when need realize testing solar energy group cluster tester, first 1-1 and lower half 1-2 with part earlier, then take off two bristled fish clamps 14, will be connected with the bristled fish clamp that R1 is connected with the group cluster negative pole, then will be connected with the high-power line winding resistance R2 with the bristled fish clamp with group cluster positive pole be connected, open control switch K, locate 1 side of box convenient operation with control switch K, show as "0" if ampere meter A, then the group cluster is normal. If the meter has digital display, indicating leakage, the larger the value, the farther the leakage point is from the testing end, otherwise, the closer! Consequently through above-mentioned structural design, it is simpler to realize that whole structure operates, and equipment can assemble into a whole moreover, conveniently carries, and the circuit can not be too chaotic, and the later stage can realize automatic charging moreover, improves the portability.

Example 2:

as shown in fig. 4-7, in order to realize multiple functions, in the solar string tester provided in this embodiment, a mounting groove 2 is provided in an upper half portion 1-1, two sides of the mounting groove 2 are rotatably connected with rotating shafts 3, a positioning bracket 4 is fixed between the two rotating shafts 3, a mounting plate 5 is provided on an upper surface of the positioning bracket 4, LED lamp beads 6 electrically connected with a storage battery B are fully distributed in the mounting plate 5, the positioning bracket 4 is an inner cavity structure with an opening 7 at one side, a solar photovoltaic panel assembly 8 capable of being pulled out from the opening 7 is inserted in the inner cavity of the positioning bracket 4, the solar photovoltaic panel assembly 8 is electrically connected with the storage battery B, a first limit stage 9 for positioning a rotation angle of the positioning bracket 4 is provided on a right side of the mounting groove 2, a second limit stage 26 for ensuring that the positioning bracket 4 is in an initial horizontal state is provided on a left side of the mounting groove 2, the depth of the first limiting table 9 is lower than that of the second limiting table 26, and the storage battery B is electrically connected with the solar photovoltaic panel assembly 8.

For the convenience of location, finally conveniently take out photovoltaic board 16 and realize the solar energy power supply effect, solar photovoltaic board subassembly 8 includes photovoltaic support 15 and installs photovoltaic board 16 in photovoltaic support 15, all is equipped with magnet 17 in 4 cavity bottoms of locating support near the both sides of opening 7, is equipped with around the lower surface of photovoltaic support 15 can with magnet 17 complex iron sheet 18.

For positioning convenience, a positioning rod 19 hinged with the positioning bracket 4 is arranged on the outer side below the opening 7 of the positioning bracket 4, and a limiting groove 20 matched with the positioning rod 19 is arranged on the upper half part 1-1.

In the structure, for convenience of control, a switch is arranged between the LED lamp beads 6 electrically connected with the storage battery B, when the switch is pressed, the voltage of the storage battery B is enabled to supply power to the LED lamp beads 6, the temporary lighting effect of the device can be realized, the functionality can be further improved, meanwhile, due to the design of the second limiting table 26, the horizontal limiting effect is realized on the positioning support 4, the problem that the positioning support 4 shakes randomly due to the rotating shaft 3 is avoided, meanwhile, the right side of the positioning support 4 can be pressed down in the daytime, under the effect of the rotating shaft 3, the right side of the positioning support 4 tilts downwards, the left side of the positioning support 4 tilts upwards, the opening 7 on the left side of the positioning support 4 can be exposed, the photovoltaic plate 16 is pulled out at the moment, the positioning rod 19 is rotated to be clamped in the limiting groove 20, the fixing effect of tilting of the positioning support 4 is finally realized, and meanwhile, the magnets 17 on the two sides below the lower surface of the photovoltaic support 15 are matched with, carry out spacing fixed to photovoltaic board 16, finally make photovoltaic board 16 expose outside, then realize that solar energy receives the electric quantity, store battery B in, finally realize the later stage to battery B's charging action.

Claims

1. A solar string tester comprises a box body (1), and is characterized in that the box body (1) comprises an upper half part (1-1) and a lower half part (1-2) which are hinged through a connecting shaft (22), a detection circuit (10) is arranged in the lower half part (1-2), the detection circuit (10) comprises a high-voltage bridge stack UR, a current-limiting resistor R1, a high-power wire-wound resistor R2, an ammeter A, a storage battery B, a rechargeable 9V power supply battery (12) and a battery low-voltage detector (11), the anode of the 9V power supply battery (12) is connected with the anode 1 pin of the input end of the high-voltage bridge stack UR through a control switch K, the cathode of the 9V power supply battery (12) is connected with the cathode 2 pin of the input end of the high-voltage bridge stack UR, the ammeter A is connected between the anode 1 pin of the input end of the high-voltage bridge stack UR and the cathode 2 pin of the input end of the high-, the detection end of the battery low-voltage detector (11) is connected with the positive electrode of a 9V power supply battery (12), the output end of the battery low-voltage detector (11) is connected with a single chip microcomputer (13), a first relay switch (24) is connected onto the single chip microcomputer (13), one end of two ends of a first coil M1 of the first relay switch (24) is connected with a storage battery B through a voltage stabilizing circuit (21) with the output of 5V, the other end of the first relay switch is connected with a grounding end GND, a normally closed switch K1 of the first relay switch (24) is connected between the storage battery B and a control switch K, the output of the voltage stabilizing circuit (21) is further connected with a second relay switch (25), a second coil M2 of the second relay switch (25) is connected between the voltage stabilizing circuit (21) and the single chip microcomputer (13), and a normally open switch K2 of the second relay switch (25) is connected between the storage battery B and the 9V power supply battery (12) to realize that the normally open Charging, 3 feet of the positive electrode of the output end of the high-voltage bridge stack UR are connected with the high-power wire-wound resistor R2, 4 feet of the negative electrode of the output end of the high-voltage bridge stack UR are connected with the current-limiting resistor R1, the other ends of the current-limiting resistor R1 and the high-power wire-wound resistor R2 are respectively connected with the jaw fish clamp (14), and the upper half part (1-1) is internally provided with a positioning groove (23) matched with the jaw fish clamp (14).

2. The solar string tester as claimed in claim 1, wherein a mounting groove (2) is provided in the upper half portion (1-1), both sides of the mounting groove (2) are rotatably connected with rotating shafts (3), a positioning bracket (4) is fixed between the two rotating shafts (3), a mounting plate (5) is provided on the upper surface of the positioning bracket (4), LED lamp beads (6) electrically connected with the storage battery B are fully distributed in the mounting plate (5), the positioning bracket (4) is an inner cavity structure with an opening (7) at one side, a solar photovoltaic panel assembly (8) capable of being pulled out from the opening (7) is inserted in the inner cavity of the positioning bracket (4), the solar photovoltaic panel assembly (8) is electrically connected with the storage battery B, a first limit table (9) for positioning the rotation angle of the positioning bracket (4) is provided on the right side of the mounting groove (2), the left side of the mounting groove (2) is provided with a second limiting table (26) for ensuring that the positioning support (4) is in an initial horizontal state, the depth of the first limiting table (9) is lower than that of the second limiting table (26), and the storage battery B is electrically connected with the solar photovoltaic panel assembly (8).

3. The solar string tester as claimed in claim 2, wherein the solar photovoltaic panel assembly (8) comprises a photovoltaic support (15) and a photovoltaic panel (16) mounted in the photovoltaic support (15), magnets (17) are arranged on both sides of the bottom of the cavity of the positioning support (4) close to the opening (7), and iron sheets (18) capable of being matched with the magnets (17) are arranged on the periphery of the lower surface of the photovoltaic support (15).

4. The solar string tester as claimed in claim 2 or 3, wherein a positioning rod (19) hinged to the positioning bracket (4) is provided at the outer side below the opening (7) of the positioning bracket (4), and a limiting groove (20) engaged with the positioning rod (19) is provided at the upper half part (1-1).