CN216216750U - Photovoltaic module shutoff device - Google Patents
Photovoltaic module shutoff device Download PDFInfo
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- CN216216750U CN216216750U CN202122228530.XU CN202122228530U CN216216750U CN 216216750 U CN216216750 U CN 216216750U CN 202122228530 U CN202122228530 U CN 202122228530U CN 216216750 U CN216216750 U CN 216216750U
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- circuit board
- cable
- photovoltaic module
- wiring portion
- electric connecting
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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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Abstract
The utility model discloses a photovoltaic module shutoff device which comprises a circuit board, an electric connecting wire, an encapsulation body and an insulating sleeve, wherein the electric connecting wire is electrically connected with the circuit board, the part of the electric connecting wire connected with the circuit board are encapsulated to form the encapsulation body with a preset shape, the circuit board and the part of the electric connecting wire connected with the circuit board are accommodated and fixed in the encapsulation body, and the insulating sleeve is sleeved on the encapsulation body and a section of the electric connecting wire close to the encapsulation body so as to connect the encapsulation body and the electric connecting wire close to the encapsulation body into a whole. The photovoltaic module breaker provided by the utility model has no plastic shell, can ensure the protection grade, is low in production cost, does not need to clamp the electric connecting wire by using a special clamp during installation, and then assembles the circuit board, is simple and convenient to produce and assemble, greatly improves the production efficiency, reduces the production cost of the photovoltaic module breaker, ensures that the electric connecting wire is not easy to loosen, and has higher reliability.
Description
Technical Field
The utility model relates to the technical field of electronic elements, in particular to a photovoltaic module shutoff device.
Background
The photovoltaic module breaker is an important electronic device connected with a photovoltaic module and is mainly used for quickly shutting off the module. The current on the market ware of cutting off all has insulating casing, and during production, at first need produce insulating casing, electric connecting wire and circuit board fixed connection get up, and the mode of clamping electric connecting wire fixed fastening through the clamping piece makes the electric connecting wire straighten the back, just can assemble the circuit board into entering insulating casing, and the flow of whole production equipment is complicated, and the operation degree of difficulty is big, and manufacturing cost is high, and production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a photovoltaic module shutoff device, and aims to solve the problem that the photovoltaic module shutoff device in the prior art is high in production cost.
In order to achieve the above object, the present invention provides a photovoltaic module shutdown device, including:
a circuit board;
an electrical connection wire electrically connected with the circuit board;
the circuit board, the part of the electric connection wire connected with the circuit board are encapsulated to form an encapsulation body with a preset shape, and the circuit board and the part of the electric connection wire connected with the circuit board are accommodated and fixed in the encapsulation body;
the insulating sleeve is sleeved on one section of the potting body, close to the potting body, of the electric connecting wire, so that the potting body and the electric connecting wire are connected into a whole, close to the potting body.
Optionally, the circuit board has a first wiring portion and a second wiring portion arranged at an interval;
the electrical connection wire includes a first cable, a terminal of which is soldered to the first wiring portion, and a second cable, a terminal of which is soldered to the second wiring portion.
Optionally, the circuit board is disc-shaped or oval, the opposite ends of the circuit board have a first cut edge and a second cut edge that are parallel to each other, the first wiring portion is disposed near the first cut edge, and the second wiring portion is disposed near the second cut edge.
Optionally, the first cable and the second cable each include a conductive wire and an insulating sleeve wrapping the conductive wire, one end of the conductive wire of the first cable extends out of the insulating sleeve of the first cable to form a terminal of the first cable, the terminal of the first cable is bridged on the circuit board and is fixedly connected with the first wiring portion, and the insulating sleeve of the first cable is abutted against the first cut edge;
the wiring end of the second cable is arranged on the circuit board and fixedly connected with the second wiring portion, and the insulating sleeve of the second cable is abutted to the second trimming edge.
Optionally, the first cable, the first wire connection portion, the second cable, and the second wire connection portion are disposed on the same axis.
Optionally, the first wiring portion is a plurality of wiring portions arranged at intervals, and/or the second wiring portion is a plurality of wiring portions arranged at intervals.
Optionally, the insulating sleeve is a straight sleeve.
Optionally, the insulating sleeve is a heat shrinkable tube or a rubber sleeve.
Optionally, the potting body is spherical or disc-shaped or rectangular.
Optionally, the circuit board is provided with a switch control circuit and a communication module electrically connected to the switch control circuit, the communication module is configured to receive a control signal or a wireless control signal through the electrical connection line and output the control signal to the switch control circuit, and the switch control circuit is configured to turn on or off according to the received control signal.
The photovoltaic module shutoff device comprises a circuit board, an electric connecting wire, an encapsulation body and an insulating sleeve, wherein the electric connecting wire is electrically connected with the circuit board, the part of the electric connecting wire connected with the circuit board are encapsulated to form the encapsulation body with a preset shape, the circuit board and the part of the electric connecting wire connected with the circuit board are accommodated and fixed in the encapsulation body, and the insulating sleeve is sleeved on a section of the encapsulation body and a section of the electric connecting wire close to the encapsulation body to connect the encapsulation body and the electric connecting wire close to the encapsulation body into a whole, so that the encapsulation body and the electric connecting wire cannot shake relatively, the electric connecting wire is prevented from falling off from the circuit board, and the reliability of the photovoltaic module shutoff device is improved. And photovoltaic module closes the ware and does not need extra plastic shell, when guaranteeing its protection level, greatly reduced photovoltaic module closes the manufacturing cost of ware, also need not to use during the installation special anchor clamps to press from both sides tight back with the electric connection line and assemble the circuit board in the plastic shell, the production equipment is simple and convenient more, has promoted its production efficiency greatly, has reduced the manufacturing cost of photovoltaic module closes the ware.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an exploded view of an embodiment of a photovoltaic module shutdown apparatus of the present invention;
FIG. 2 is an assembly view of FIG. 1;
fig. 3 is a cross-sectional view of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
2 | |
| 3 | |
4 | |
| 31 | The |
32 | The second part |
| 11 | First cable | 12 | Second cable |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The problem that photovoltaic module shutoff device cost is higher on the existing market is solved.
The utility model provides a photovoltaic module shutoff device.
In an embodiment of the present invention, as shown in fig. 1 and 2 and fig. 3, the photovoltaic module shutdown device includes a circuit board 1, an electrical connection wire 4, a potting body 2 and an insulation sleeve 3. The electrical connection wire 4 is electrically connected with the circuit board 1, the portion of the electrical connection wire 4 connected with the circuit board 1 are encapsulated in the encapsulation body 2, and the insulation sleeve 3 is sleeved on the encapsulation body 2 and the portion of the electrical connection wire 4 close to the encapsulation body 2 so as to connect the encapsulation body 2 and the electrical connection wire 4 close to the encapsulation body 2 into a whole. In detail, after the terminals of the electrical connection wires 4 are welded on the circuit board 1 or fixed on the circuit board 1 by bolts or clamping, the circuit board 1 and the parts of the electrical connection wires 4 connected with the circuit board 1 are placed in a special-shaped potting mold, and then the potting material is introduced into the potting mold for potting to form a potting body 2 corresponding to the shape of the mold. After the embedment is accomplished, establish insulating sleeve 3 direct cover on the section that encapsulation body 2 and electric connecting wire 4 are close to encapsulation body 2, through heating insulating sleeve 3 or rely on the elastic force of insulating sleeve 3 itself, make insulating sleeve 3 paste the fastening on one section that encapsulation body 2 and electric connecting wire 4 are close to encapsulation body 2, and the shrink is tight, connect circuit board 1 and electric connecting wire 4 and the embedment body 2 that the embedment material formed and become a holistic photovoltaic module ware that closes, make and can not produce relative rocking between encapsulation body and the electric connecting wire, avoid the electric connecting wire to drop from the circuit board, the reliability is improved. And need not additionally set up a plastic shell of protection circuit board 1 outside circuit board 1, when can guarantee the protection level of photovoltaic module shutoff device, can not change photovoltaic module shutoff device's function itself, the manufacturing cost of the photovoltaic module shutoff device that has significantly reduced. When the photovoltaic module breaker is manufactured, the circuit board 1 is assembled into the shell body after the electric connecting wires 4 are clamped without using a special clamp, the whole production assembly is simpler and more convenient, the production flow of the production assembly can be greatly reduced, the production efficiency is improved, and the production cost of the photovoltaic module breaker is reduced.
It should be noted that the material of the encapsulating body 2 may be room temperature vulcanized silicone rubber or organic silicone gel, which can play a good role in moisture protection, dust protection, corrosion protection and shock resistance, and improve the service performance and stability parameters of the whole photovoltaic module shutoff device. The vulcanized silicone rubber is liquid before vulcanization, so that the filling and the use are convenient. When the organic silicon gel is used for encapsulation, low molecules are not released, no stress shrinkage exists, deep vulcanization can be carried out, no corrosion exists, the transparent silica gel becomes a transparent elastomer after vulcanization, components packaged in the gel layer are clearly visible, the component parameters can be measured one by needling the inside, and the detection and the repair are convenient. Of course, opaque gray or black can be selected, and the user can select the color according to the use range, which is not limited herein.
In one embodiment, as shown in fig. 1, the circuit board 1 has a first wiring portion and a second wiring portion, the electrical connection line 4 includes a first cable 41 and a second cable 42, one end of the first cable 41 is fixedly connected to the second wiring portion, and a terminal of the second cable 42 is fixedly connected to the first wiring portion. In detail, the insulating sheath at the end of the first cable 41 connected to the circuit board 1 is removed, so that the inner metal wire extends out of the insulating sheath, and the metal wire of the first cable 41 is soldered to the second wiring portion of the circuit board 1, thereby completing the electrical connection. Accordingly, the insulating sheath at the end of the second cable 42 connected to the circuit board 1 is removed, so that the metal wire therein extends out of the insulating sheath, and the metal wire of the second cable 42 is soldered to the first wiring portion of the circuit board 1, thereby completing the electrical connection between the second cable 42 and the circuit board 1. In a preferred embodiment, the metal wire of the first cable 41 is laid on the circuit board 1, the insulating sheath is pressed against the periphery of the circuit board 1, and the metal wire of the first cable 41 is fixed to the circuit board 1 by soldering, and then potting is performed. The connection between the first cable 41 and the circuit board 1 obtained by potting is tighter, the metal wire cannot be loosened from the circuit board 1 even when the first cable 41 is stressed to shake, and the connection mode of the corresponding second cable 42 is consistent with that of the first cable 41, which is not repeated herein.
Preferably, circuit board 1 is discoid or ellipse shape, the relative both ends of circuit board 1 have the first side of cutting and the straight side of second that are parallel to each other, first wiring portion is close to first side of cutting and sets up, second wiring portion is close to the setting of second side of cutting, it is more convenient to make first cable 41 and second cable 42 and circuit board 1's connection, the length that the wire of electricity connecting wire 4 stretches out the insulating sheath is short just can be steady fix on circuit board 1, and first side of cutting and second side of cutting are the straight line, when making first cable welded fastening on the first wiring portion of circuit board 1, the insulating sheath of first cable supports first cutting board, make only the wire be connected with circuit board 1, the insulating sheath can not be set up on circuit board 1, first cable 41 and circuit board 1 are connected more firmly when the embedment, it is stable. The connection mode of the second cable is the same as that of the first cable, and the description is not repeated here.
In one embodiment, the first cable 41 includes a conductive wire and an insulating sheath covering the conductive wire, one end of the conductive wire extends out of the insulating sheath to form a terminal of the first cable 41, the terminal of the first cable is lap-welded and fixed on the circuit board 1 and is fixedly connected with the first wiring portion, and the insulating sheath is abutted against the first cut edge. When the terminal of the first cable 41 is a metal wire, the first cable 41 is erected and welded on the circuit board 1, no gap or small gap is generated between the first cable 41 and the circuit board 1, the first cable 41 and the circuit board 1 are encapsulated in the encapsulating body 2 together, the first cable 41 and the circuit board 1 are firmer, and are not easy to loosen and loose, and the stability is better. Correspondingly, the wiring end of second cable 42 is set up in circuit board 1 and with second wiring portion fixed connection, insulating cover and second side cut looks butt for when second cable 42 welded fastening is on circuit board 1, the space is little between second cable 42 and the circuit board 1 fixed connection back, and is more firm when encapsulating it in the embedding body 2 together, and second cable 42 and circuit board 1 are difficult for the pine to take off, and the steadiness is better.
It should be noted that, in other embodiments, the first wiring portions of the circuit board 1 may also be disposed in the same direction or at an angle, and may be self-adjusted according to the use requirement, which is not limited herein.
Preferably, first cable, first wiring portion, second cable and second wiring portion set up on the same axis, first cable 41 and second cable 42 connect the relative both sides on circuit board 1 respectively promptly, obtain the relative photovoltaic module ware that sets up of first cable and second cable after the embedment, make insulating sleeve 3 establish more simple and conveniently when the cover is established on the embedment body 2, only need stretch into the sleeve pipe from first cable department, stretch out from second cable department and can accomplish and cup joint fixedly, the fixed operation of cup jointing has been simplified, production efficiency has been promoted.
In an embodiment, the first wiring portion on the circuit board 1 may be one, or may be a plurality of wiring portions arranged at intervals, and correspondingly, the second wiring portion may be one, or may be a plurality of wiring portions arranged at intervals, and x is corresponding, and the number of the first wiring portions may or may not match the number of the second wiring portions. It is only necessary to ensure that at least one of the first wiring portions is connected to the second cable 42 and at least one of the second wiring portions is connected to the first cable 41, and the present invention is not limited thereto. In the present embodiment, the first wiring portion and the second wiring portion are oppositely disposed on the circuit board 1, and the number of the first wiring portion and the second wiring portion is one, and the first cable 41 and the second cable 42 are both disposed side by side. In other embodiments, the second wiring portion and the first wiring portion may be multiple, such as two input terminals, one output terminal, or three input terminals, three output terminals, etc., depending on different usage scenarios and the number of connections between the photovoltaic module shutdown device and other electrical connectors, which is not limited herein.
In one embodiment, the insulating sleeve 3 is wrapped around the potting body 2 and a section of the electrical connection line 4 near the potting body 2. In detail, the insulating sleeve 3 has a first portion 31 and a second portion 32, the first portion 31 of the insulating sleeve 3 is wrapped around the potting body 2, and the second portion 32 of the insulating sleeve 3 is wrapped around a section of the electrical connection line 4 close to the potting body 2. It can be known that, when the third portion of the electrical connection line 4 arranged outside the potting body 2 is shaken under the action of external force, the joint of the electrical connection line 4 and the potting body 2 can transmit the force of one axis to the potting body 2, and relative shaking can be generated between the electrical connection line 4 and the potting body 2, so that the connection between the electrical connection line 4 and the circuit board 1 is easily disconnected, and the reliability of the photovoltaic module shutoff device is affected. Through wrapping up simultaneously with embedment body 2 and electric connecting wire 4 in one section that is close to embedment body 2, wrap up electric connecting wire 4 and embedment body 2 as a whole, even when electric connecting wire 4 is arranged in 2 outer parts of embedment body and is taken place to rock by external force, under insulation support 3's effect, embedment body 2 rocks together with electric connecting wire 4, can not exert an influence to the connection of electric connecting wire 4 and circuit board 1, the effectual reliability of connecting of circuit board 1 and electric connecting wire 4 of having guaranteed.
Further, directly establish insulating sleeve 3 cover on the encapsulation body 2, rely on the elasticity effect of self with the encapsulation body 2 and be close to the outer one section electric connecting wire 4 parcel of encapsulation body 2 as a whole to it is tight at insulating sleeve 2 outside cable department shrink clamp. Compare in wrapping up after twining electric connecting wire 4 and embedment 2 many times with insulating tape and connecting embedment 2 and a section electric connecting wire 4 that is close to the outer of embedment 2 as a whole, when can playing same parcel effect when adopting the insulating pipe box, the parcel efficiency is higher, and speed is faster.
Preferably, the insulating sleeve 2 may be a heat shrinkable tube. When adopting the pyrocondensation pipe, directly overlap the pyrocondensation pipe on the periphery of potting body 2 and the electric connection line 4 that is close to the potting body 2 outside, heat the pyrocondensation pipe, the pyrocondensation pipe shrink for the pyrocondensation pipe laminating is on the jar body, and it is tight to contract at insulating sleeve at the electric connection line 4 department in the potting body 2 outside, thereby need not to design or increase special tight structure of clamp, can guarantee the reliability that electric connection line 4 and circuit board 1 are connected. It should be noted that, in other embodiments, when the insulating sleeve is an elastic rubber sleeve, the whole of the potting body 2 and the electrical connection line 4 passes through the elastic rubber sleeve, and the rubber sleeve simultaneously compresses the potting body 2 and the portion of the electrical connection line 4 close to the potting body 2 under the action of the elastic force of the rubber sleeve, so as to reduce the influence of shaking of the electrical connection line 4 and ensure the connection reliability of the circuit board 1 and the electrical connection line 4.
Preferably, the potting body 2 is disc-shaped and fits with the shape of the circuit board 1, so that the volume of the potting body 2 can be greatly reduced while the circuit board 1 is protected, and the cost is reduced. Of course, in other embodiments, the potting body 2 may be a sphere or other shape, which is not limited herein.
In one embodiment, the circuit board 1 has a switch control circuit and a communication module electrically connected to the switch control circuit. The communication module is used for receiving a control signal or a wireless control signal through the electric connecting wire 4 and outputting the control signal to the switch control circuit, and the switch control circuit is used for conducting or switching off according to the received control signal.
It should be noted that, the surface of the potting body 2 is fixedly provided with a connecting piece or is provided with an annular groove on the surface, the volume of the photovoltaic module shutoff device is small, the photovoltaic module shutoff device can be directly placed inside the beam groove during installation, and can also be directly fixed on the beam in a mode that a binding band or a binding band is clamped into the annular groove, so that the photovoltaic module shutoff device is simpler and more convenient in the using and installing process, and the installation mode is not limited.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A photovoltaic module shutdown device, comprising:
a circuit board;
an electrical connection wire electrically connected with the circuit board;
the circuit board, the part of the electric connection wire connected with the circuit board are encapsulated to form an encapsulation body with a preset shape, and the circuit board and the part of the electric connection wire connected with the circuit board are accommodated and fixed in the encapsulation body;
the insulating sleeve is sleeved on one section of the potting body, close to the potting body, of the electric connecting wire, so that the potting body and the electric connecting wire are connected into a whole, close to the potting body.
2. The photovoltaic module shutdown device according to claim 1, wherein the circuit board has a first wiring portion and a second wiring portion arranged at intervals;
the electrical connection wire includes a first cable, a terminal of which is soldered to the first wiring portion, and a second cable, a terminal of which is soldered to the second wiring portion.
3. The photovoltaic module shutter according to claim 2, wherein the circuit board has a disk shape or an oval shape, opposite ends of the circuit board have a first cut edge and a second cut edge parallel to each other, the first wiring portion is disposed adjacent to the first cut edge, and the second wiring portion is disposed adjacent to the second cut edge.
4. The photovoltaic module shutoff device according to claim 3, wherein the first cable and the second cable each include a conductive wire and an insulating sleeve wrapping the conductive wire, one end of the conductive wire of the first cable extends out of the insulating sleeve of the first cable to form a terminal of the first cable, the terminal of the first cable is lapped on the circuit board and is fixedly connected with the first wiring portion, and the insulating sleeve of the first cable is abutted against the first cut edge;
the wiring end of the second cable is arranged on the circuit board and fixedly connected with the second wiring portion, and the insulating sleeve of the second cable is abutted to the second trimming edge.
5. The photovoltaic module shutdown device according to claim 4, wherein the first cable, the first wire connection portion, the second cable, and the second wire connection portion are disposed on the same axis.
6. The photovoltaic module shutdown device according to claim 2, wherein the first wiring portion is a plurality of wiring portions arranged at intervals, and/or the second wiring portion is a plurality of wiring portions arranged at intervals.
7. The photovoltaic module shutdown device of claim 1, wherein the insulating sleeve is a straight sleeve.
8. The photovoltaic module shutdown device according to claim 1, wherein the insulating sleeve is a heat shrinkable tube or a rubber sleeve.
9. The photovoltaic module shutdown device according to claim 1, wherein the encapsulant is spherical, disc-shaped or rectangular.
10. The photovoltaic module shutdown device according to claim 1, wherein the circuit board has a switch control circuit and a communication module electrically connected to the switch control circuit, the communication module is configured to receive a control signal or a wireless control signal through the electrical connection line and output the control signal to the switch control circuit, and the switch control circuit is configured to turn on or off according to the received control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122228530.XU CN216216750U (en) | 2021-09-14 | 2021-09-14 | Photovoltaic module shutoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122228530.XU CN216216750U (en) | 2021-09-14 | 2021-09-14 | Photovoltaic module shutoff device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216216750U true CN216216750U (en) | 2022-04-05 |
Family
ID=80918679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122228530.XU Active CN216216750U (en) | 2021-09-14 | 2021-09-14 | Photovoltaic module shutoff device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216216750U (en) |
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2021
- 2021-09-14 CN CN202122228530.XU patent/CN216216750U/en active Active
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