CN108879208A - The connector and photovoltaic junction box and photovoltaic module of quick detachable photovoltaic junction box - Google Patents

Abstract

The invention discloses an easily detachable connector of a photovoltaic junction box, which includes a plug and a socket that cooperate with each other, a positive electrode is arranged in the plug, a negative electrode is arranged in the socket, and the plug includes a plug body and the pins arranged on the plug body, the socket includes a socket body, the socket body is provided with a socket that matches the pin, and the socket has a socket that is compatible with the socket There is a ring-shaped retaining bar that matches the needle, and the side wall of the pin has a convex strip that extends in the same direction as the pin, and a through groove that matches the convex strip is opened on the annular retaining strip. A cavity is provided between the ring bar and the negative electrode, and an elastic member is provided in the cavity. The connector of an easily detachable photovoltaic junction box of the present invention is provided with a plug and a socket that cooperate with each other, and a convex strip is provided on the pin of the plug, and an annular retaining strip and a through groove are provided in the socket, so that the plug is convenient into or out of the socket.

Description

Connectors for easily detachable photovoltaic junction boxes, photovoltaic junction boxes and photovoltaic modules

technical field

The invention belongs to the technical field of photovoltaic module manufacturing, and in particular relates to a connector of an easily detachable photovoltaic junction box, a photovoltaic junction box and a photovoltaic module including the easily detachable connector.

Background technique

With the continuous consumption of energy and the rise of energy prices, the development and utilization of new energy has become the main topic of research in the field of energy. Because solar energy has the advantages of no pollution, no regional restrictions, and inexhaustible supply, research on solar power generation has become one of the hottest directions for developing new energy sources. At this stage, using solar cells to generate electricity is a major way for people to use solar energy. With the continuous development of photovoltaic technology, photovoltaic module products, which are semiconductor devices that convert solar energy into electrical energy, have been rapidly developed.

Photovoltaic junction box is a very critical component in photovoltaic modules. It is an electrical connection component that connects the battery array in a solar photovoltaic module with the electrical equipment or the battery array in another solar photovoltaic module. Its function is to connect the solar photovoltaic The current and voltage generated by the battery array in the module is conducted to the external channel. The basic structure of a photovoltaic junction box generally includes a box body, a box cover, terminal blocks, diodes, wires, connectors, etc., among which the connector is responsible for the interconnection between photovoltaic modules or the interconnection between modules and electrical equipment.

The connectors of the photovoltaic junction box are divided into positive and negative terminals. The current connection between the positive and negative terminals mainly adopts the buckle method, that is, the structure of the buckle and the card hole is locked to ensure the long-term stability of the photovoltaic module. During work, the positive and negative terminals are connected stably without falling off or loosening. However, this design makes the disassembly work during maintenance cumbersome, and the staff needs to use special disassembly tools, which reduces the efficiency.

Contents of the invention

In view of this, in order to achieve the above objectives, one of the objectives of the present invention is to provide an easily detachable photovoltaic junction box connector, which has a simple structure, is easy to disassemble and has a long service life.

In order to achieve the above object, the present invention adopts the following technical solutions:

An easily detachable connector for a photovoltaic junction box, including a plug and a socket that cooperate with each other, a positive electrode is provided in the plug, a negative electrode is provided in the socket, the plug includes a plug body and a The pin on the plug body, the socket includes a socket body, and the socket body is provided with a jack that matches the pin, and there is a socket that matches the pin in the socket. An annular bar, the side wall of the pin has a protruding bar in the same extension direction as the pin, and a through groove matching the protruding bar is provided on the annular bar, and the annular bar is connected with the protruding bar. A cavity is arranged between the negative electrodes, and an elastic member is arranged in the cavity. By setting the plug and the socket that cooperate with each other, the plug can be easily inserted into the socket or pulled out from the socket, and the protruding strips are set on the pins of the plug, and the ring bar, the through groove and the socket are arranged in the socket. The elastic member enables the pin to be fixed in the socket.

In specific use, align the convex strip on the plug with the position of the through groove, and then insert it. After the convex strip passes through the through groove as a whole, the elastic member is in a compressed state. At this time, the plug is rotated at an angle to make the convex strip and the through groove occur. Misalignment, after loosening, due to the elastic force provided by the elastic part, the convex strip is held by the ring bar to achieve a fixed effect. When disassembling, just press the plug, rotate the convex strip counterclockwise to the position of the slot, and then pull out the plug , easy to use and good fixing effect.

Preferably, a positioning groove for accommodating the raised strip is provided on the side of the annular bar near the negative electrode, and the width of the positioning groove is slightly wider than the width of the raised strip. When the raised strip is rotated to where the positioning groove is Position, after loosening, with the rebound of the elastic member, the upper end of the convex strip will be stuck in the positioning groove, which further improves the connection stability between the plug and the socket, and prevents the plug from loosening or falling off between the socket and the socket.

More preferably, the positioning groove and the through groove are located at both ends of the same diameter in the insertion hole, that is, the positioning groove and the through groove are 180° opposite. The initial position of the convex strip is 180° opposite to the initial position of the through groove. When using it, the plug needs to be rotated 180° clockwise first, that is, after the convex strip corresponds to the position of the through groove, then insert it. When the convex strip is completely out of the through groove After passing through the slot, rotate the plug counterclockwise 180° to reset, and finally loosen the plug, the elastic member will rebound, and the convex strip will be snapped into the positioning slot to lock, so as to avoid the stress caused by the rotation of the wire when the connector is interconnected, resulting in Photovoltaic modules generate risks under long-term working conditions.

Preferably, the elastic member is a spring, and the negative electrode runs through the spring. Springs are cheap, readily available and work well.

Preferably, the sides of the plug and socket close to each other have protruding or recessed markings for marking the direction of rotation, the starting position and the end position. By setting the markings, the rotation is more purposeful and convenient.

More preferably, a positioning protrusion is provided on one side of the plug and the socket that are close to each other, and a groove that cooperates with the positioning protrusion is provided on the other side of the plug and the socket that are close to each other. The rotation is more convenient by setting the positioning protrusions and the grooves which cooperate with each other.

Preferably, the end of the pin close to the plug body has an elastic sealing ring for sealing. And the distance from the elastic sealing ring to the end of the pin is smaller than the distance from the bottom of the cavity to the end of the sleeve. Since the plug still needs to be pressed down to rotate after the protruding strip passes through the slot as a whole, and the plug will rebound for a short distance after being released when it reaches the position of the positioning slot. Risk of dust, moisture ingress.

More preferably, the outer diameter of the elastic sealing ring matches the inner diameter of the inlet of the insertion hole. The elastic sealing ring is a rubber sealing ring.

The present invention also provides a photovoltaic junction box, including a box body, a box cover, a connection terminal, a diode, a wire, and a connector, wherein the connector is the easily detachable photovoltaic junction box connector as described above .

The present invention also provides a photovoltaic module, comprising a photovoltaic laminate, a frame covering the edge of the photovoltaic laminate, and a junction box, the junction box including the above-mentioned easily detachable connector of the photovoltaic junction box.

Compared with the prior art, the present invention is beneficial in that: an easily detachable photovoltaic junction box connector of the present invention has a reasonable structural design, and the plug can be conveniently connected by setting a plug and a socket that cooperate with each other. Insert into the socket or pull it out from the socket, and set a raised strip on the pin of the plug, and set a ring bar, a through groove and an elastic member that cooperate with the raised strip in the socket, so that the pin can be inserted The sleeve can be fixed; by setting the positioning groove, the convex strip can be stuck in the positioning groove, further improving the stability of the connection between the plug and the socket, and preventing the plug from loosening or falling off between the socket and the socket; The initial positions of the slots are set relative to each other at 180°, and they are rotated during use, which can avoid the stress caused by the rotation of the wires when the connectors are interconnected, which will cause risks in the long-term working state of the photovoltaic module.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

1 is a perspective view of a plug in a connector of an easily detachable photovoltaic junction box according to a preferred embodiment of the present invention;

Fig. 2 is a perspective view of a socket in a connector of an easily detachable photovoltaic junction box according to a preferred embodiment of the present invention;

Fig. 3 is the front view of the socket in the connector of the easily detachable photovoltaic junction box of the preferred embodiment of the present invention;

Fig. 4 is the sectional view of A-A among Fig. 3;

Fig. 5 is the sectional view of B-B in Fig. 3;

Fig. 6 is the sectional view of C-C in Fig. 3;

Fig. 7 is a perspective view of the first step when the connector of the easily detachable photovoltaic junction box of the preferred embodiment of the present invention is in use;

Fig. 8 is a perspective view of the second step when the connector of the easily detachable photovoltaic junction box of the preferred embodiment of the present invention is in use;

Fig. 9 is a perspective view of the third step when the connector of the easily detachable photovoltaic junction box of the preferred embodiment of the present invention is used;

Among them: plug-1, positive electrode-11, plug body-12, pin-13, convex strip-14, socket-2, negative electrode-21, socket body-22, jack-23, ring bar -24, through groove-25, cavity-26, elastic member-27, positioning groove-28, logo-3, positioning protrusion-41, groove-42, elastic sealing ring-5.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Embodiment one

Referring to Figures 1-9, an easily detachable photovoltaic junction box connector in this embodiment includes a plug 1 and a socket 2 that cooperate with each other, a positive electrode 11 is provided in the plug 1, and a negative electrode is provided in the socket 2 21. The plug 1 includes a plug body 12 and pins 13 arranged on the plug body 12. The socket 2 includes a socket body 22. The socket body 22 is provided with a jack 23 that matches the pin 13. The jack 23 There is an annular bar 24 matching with the pin 13 inside, and the side wall of the pin 13 has a raised bar 14 in the same direction as the extending direction of the pin 13, and the annular bar 24 is provided with a through groove matching with the raised bar 14 25. A cavity 26 is provided between the annular bar 24 and the negative electrode 21, and an elastic member 27 is arranged in the cavity 26. The side of the annular bar 24 close to the negative electrode 21 is provided with a positioning groove 28 for accommodating the raised bar 14. And the width of the positioning groove 28 is slightly wider than the width of the protruding strip 14 . By setting the plug 1 and the socket 2 that cooperate with each other, the plug 1 can be easily inserted into the socket 2 or pulled out from the socket 2, and the protruding strip 14 and the socket 23 are provided on the pin 13 of the plug 1 An annular retaining strip 24, a through groove 25 and an elastic member 27 cooperating with the convex strip 14 are arranged inside, so that the pin 13 can be fixed in the socket 2; by being provided with a positioning groove 28 in the socket 2, the convex The strip 14 is stuck in the positioning groove 28, further improving the connection stability between the plug 1 and the socket 2, and preventing the plug 1 and the socket 2 from loosening or falling off. In this embodiment, a grip notch is provided on the socket 2 for the convenience of the operator to grip.

The positioning groove 28 and the through groove 25 are located at both ends of the same diameter in the socket 2, that is, the positioning groove 28 and the through groove 25 are 180° opposite. And the initial position of the convex strip 14 and the initial position of the through groove 25 are 180°. When using it specifically, the plug 1 needs to be rotated 180° clockwise first, that is, after the convex strip 14 corresponds to the position of the through groove 25, then insert it. After the convex strip 14 completely passes through the slot 25, rotate the plug 1 counterclockwise by 180° to reset, and finally release the plug 1, the elastic member 27 rebounds, and the convex strip 14 snaps into the positioning groove 28 to rebound and lock. It can avoid the stress caused by the rotation of the wires when the connectors are interconnected, which will cause risks in the long-term working state of the photovoltaic module.

As shown in Figures 4-6, since the spring is cheap and easy to obtain and has good effect, the elastic member 27 in this embodiment is a spring, and the negative electrode 21 runs through the spring.

As shown in Figure 1-3, there are protruding or recessed markings 3 on the sides of the plug 1 and the socket 2 that are close to each other to mark the direction of rotation, the starting position and the end position. By setting the marking 3, the rotation is more accurate. Purposeful and easy to rotate. In this embodiment, a positioning protrusion 41 is provided on the side of the plug 1 close to the socket 2 , and a groove 42 cooperating with the positioning protrusion 41 is provided on the side of the socket 2 close to the plug 1 . The rotation is more convenient by providing positioning protrusions 41 and grooves 42 that cooperate with each other.

In this embodiment, the end of the pin 13 close to the plug body 12 has an elastic sealing ring 5 for sealing, and the outer diameter of the elastic sealing ring 5 matches the inner diameter of the entrance of the socket 23, and the elastic sealing ring 5 reaches the pin. The distance between the ends of 13 is smaller than the distance from the bottom of the cavity 26 to the end of the socket 2, so that the elastic sealing ring 5 can play a sealing role after the plug 1 is inserted into the socket 2. Since the protruding strip 14 passes through the through groove 25 as a whole, the plug 1 still needs to be pressed down before it can rotate, and the plug 1 will rebound for a short distance after it is released when it reaches the position of the positioning groove 28. If it is not sealed, there will be a risk of dust and water vapor entering. The elastic sealing ring 5 in this embodiment is a rubber sealing ring.

The following is a brief description of the use process of the connector of the easily detachable photovoltaic junction box in this embodiment:

The initial position of the convex strip 14 is 180° opposite to the initial position of the through groove 25. In the specific use, the first step is to rotate the plug 1 clockwise by 180°, and align the convex strip 14 on the plug 1 with the through groove 25. The location, as shown in Figure 7, the arrow in the figure is the direction of rotation of the plug 1; the second step, insert the plug 1 into the socket 2, as shown in Figure 8, the arrow in the figure is the direction of insertion of the plug 1; the third step Step 1: When the protruding strip 14 completely passes through the slot 25, the elastic member 27 is in a compressed state, and at this time, the plug 1 is rotated 180° counterclockwise to reset, as shown in Figure 9, the arrow in the figure is the direction of rotation of the plug 1. Make the protrusion 14 and the through groove 25 misaligned, after the plug 1 is loosened, due to the elastic force provided by the elastic member 27, the protrusion 14 snaps into the positioning groove 28 to achieve a fixed effect, further improve stability, and prevent the plug from coming into contact with the slot 28. The sockets are loose or fall off.

When disassembling, you only need to press the plug 1 to disengage the convex strip 14 from the positioning groove 28, then rotate the convex strip 14 counterclockwise to the position of the through groove 25, and then pull out the plug 1 under the action of the elastic member 27, which is easy to use and disassemble fast.

Embodiment two

A photovoltaic junction box in this embodiment includes a box body, a box cover, connection terminals, diodes, wires, and the easily detachable connector of the photovoltaic junction box in Embodiment 1, making the installation and disassembly of the connector more convenient and simple.

Embodiment three

A photovoltaic module in this embodiment includes a photovoltaic laminate, a frame covering the edge of the photovoltaic laminate, and a junction box including an easily detachable connector in Embodiment 2, which makes installation and disassembly of the connector more convenient and simple.

An easy-to-detachable photovoltaic junction box connector of the present invention has a reasonable structural design. By setting a plug and a socket that cooperate with each other, the plug can be easily inserted into the socket or pulled out from the socket. The pin of the plug is provided with a convex strip, and the socket is provided with an annular stopper, a through groove and an elastic member that cooperate with the convex strip, so that the pin can be fixed in the socket; by setting the positioning groove, the convex strip can be clamped In the positioning groove, the stability of the connection between the plug and the socket is further improved to prevent loosening or falling off between the plug and the socket; the initial position of the raised strip is set at 180° relative to the initial position of the through groove, and it is rotated during use. It can avoid the stress caused by the rotation of the wires when the connectors are interconnected, which will cause risks in the long-term working state of the photovoltaic module.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention. Equivalent changes or modifications made in the spirit shall fall within the protection scope of the present invention.

Claims (10)

1. a kind of connector of quick detachable photovoltaic junction box, including mutually matched plug and sleeve, the interior setting of the plug There is positive electrode, be provided with negative electrode in the sleeve, which is characterized in that the plug includes that header body and setting are inserted described Head ontology on contact pin, the sleeve includes sleeve ontology, offered on the sleeve ontology matched with the contact pin insert Hole, the jack is interior to have the annular blend stop matched with the contact pin, has on the side wall of the contact pin and prolongs with the contact pin The identical raised line in direction is stretched, the through slot matched with the raised line, the annular blend stop and institute are offered on the annular blend stop It states and is provided with cavity between negative electrode, be provided with elastic component in the cavity.

2. the connector of the quick detachable photovoltaic junction box of one kind according to claim 1, it is characterised in that：The annular gear Item offers the locating slot for accommodating the raised line close to the side of the negative electrode.

3. the connector of the quick detachable photovoltaic junction box of one kind according to claim 2, it is characterised in that：The locating slot It is located at the both ends of same diameter in the jack with the through slot.

4. the connector of the quick detachable photovoltaic junction box of one kind according to claim 1, it is characterised in that：The elastic component For spring, the negative electrode runs through the spring.

5. the connector of the quick detachable photovoltaic junction box of one kind according to claim 1, it is characterised in that：The plug and There is the mark for being used to mark direction of rotation, initial position and final position of protrusion or recess on sleeve side close to each other Know.

6. the connector of the quick detachable photovoltaic junction box of one kind according to claim 5, it is characterised in that：The plug and There is positioning protrusion, on the plug and sleeve another side close to each other on sleeve one of side close to each other With with the mutually matched groove of the positioning protrusion.

7. the connector of the quick detachable photovoltaic junction box of one kind according to claim 1, it is characterised in that：The contact pin leans on One end of the nearly header body has the elastic seal ring for sealing.

8. the connector of the quick detachable photovoltaic junction box of one kind according to claim 7, it is characterised in that：The elasticity is close The outer diameter of seal matches with the internal diameter at the jack insert.

9. a kind of photovoltaic junction box, including box body, box cover, connecting terminal, diode, conducting wire, connector, it is characterised in that：Institute State the connector that connector is photovoltaic junction box quick detachable described in claim 1-8 any one claim.

10. a kind of photovoltaic module, frame and terminal box including photovoltaic laminate, the cladding photovoltaic laminate edge, It is characterized in that：The terminal box includes the quick detachable photovoltaic junction box as described in claim 1-8 any one claim Connector.